Sample records for folder trigger letter

  1. Job Requisitions https://sierppa3.si.edu/...OYEE&EOPP.SCLabel=Recruiting&EOPP.SCPTfname=HC_RECRUIT_EMPLOYEE&FolderPath=PORTAL_ROOT_OBJECT.HC_RECRUIT_EMPLOYEE.HC_CREATE_JOB_REQUISITION2.HC_JOB_REQUISITION_GBL8&IsFolder=false[1/30/2012 3:16:26 PM

    E-Print Network [OSTI]

    Job Requisitions https://sierppa3.si.edu/...OYEE&EOPP.SCLabel=Recruiting&EOPP.SCPTfname=HC_RECRUIT_EMPLOYEE&FolderPath=PORTAL_ROOT_OBJECT.HC_RECRUIT_EMPLOYEE.HC_CREATE_JOB_REQUISITION2.HC_JOB | Help | Customize Page | Job Requisition Information Job Requisition Survey Job Requisition Survey Job

  2. Commissioning ATLAS Trigger

    E-Print Network [OSTI]

    Tomasz Bold; for Atlas Tdaq

    2008-10-20T23:59:59.000Z

    The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in $pp$ collisions at 14 TeV centre-of-mass energy, whilst rejecting the enormous number of background events. Therefore it is equipped with a three level trigger system. The first level is is hardware based and uses coarse granularity calorimeter information and fast readout muon chambers. The second and third level triggers, which are software based, will need to reduce the first level trigger output rate of ~ 75 kHz to ~ 200 Hz written out to mass storage. The progress in commissioning of this system will be reviewed in this paper.

  3. Microfabricated triggered vacuum switch

    DOE Patents [OSTI]

    Roesler, Alexander W. (Tijeras, NM); Schare, Joshua M. (Albuquerque, NM); Bunch, Kyle (Albuquerque, NM)

    2010-05-11T23:59:59.000Z

    A microfabricated vacuum switch is disclosed which includes a substrate upon which an anode, cathode and trigger electrode are located. A cover is sealed over the substrate under vacuum to complete the vacuum switch. In some embodiments of the present invention, a metal cover can be used in place of the trigger electrode on the substrate. Materials used for the vacuum switch are compatible with high vacuum, relatively high temperature processing. These materials include molybdenum, niobium, copper, tungsten, aluminum and alloys thereof for the anode and cathode. Carbon in the form of graphitic carbon, a diamond-like material, or carbon nanotubes can be used in the trigger electrode. Channels can be optionally formed in the substrate to mitigate against surface breakdown.

  4. Letter of Interest Example

    Broader source: Energy.gov [DOE]

    Sample letter of interest describes the FEMP Call for Technical Services for American Recovery and Reinvestment Act funds.

  5. Isolating Triggered Star Formation

    SciTech Connect (OSTI)

    Barton, Elizabeth J.; Arnold, Jacob A.; /UC, Irvine; Zentner, Andrew R.; /KICP, Chicago /Chicago U., EFI; Bullock, James S.; /UC, Irvine; Wechsler, Risa H.; /KIPAC, Menlo

    2007-09-12T23:59:59.000Z

    Galaxy pairs provide a potentially powerful means of studying triggered star formation from galaxy interactions. We use a large cosmological N-body simulation coupled with a well-tested semi-analytic substructure model to demonstrate that the majority of galaxies in close pairs reside within cluster or group-size halos and therefore represent a biased population, poorly suited for direct comparison to 'field' galaxies. Thus, the frequent observation that some types of galaxies in pairs have redder colors than 'field' galaxies is primarily a selection effect. We use our simulations to devise a means to select galaxy pairs that are isolated in their dark matter halos with respect to other massive subhalos (N= 2 halos) and to select a control sample of isolated galaxies (N= 1 halos) for comparison. We then apply these selection criteria to a volume-limited subset of the 2dF Galaxy Redshift Survey with M{sub B,j} {le} -19 and obtain the first clean measure of the typical fraction of galaxies affected by triggered star formation and the average elevation in the star formation rate. We find that 24% (30.5 %) of these L* and sub-L* galaxies in isolated 50 (30) h{sup -1} kpc pairs exhibit star formation that is boosted by a factor of {approx}> 5 above their average past value, while only 10% of isolated galaxies in the control sample show this level of enhancement. Thus, 14% (20 %) of the galaxies in these close pairs show clear triggered star formation. Our orbit models suggest that 12% (16%) of 50 (30) h{sup -1} kpc close pairs that are isolated according to our definition have had a close ({le} 30 h{sup -1} kpc) pass within the last Gyr. Thus, the data are broadly consistent with a scenario in which most or all close passes of isolated pairs result in triggered star formation. The isolation criteria we develop provide a means to constrain star formation and feedback prescriptions in hydrodynamic simulations and a very general method of understanding the importance of triggered star formation in a cosmological context.

  6. Folder Hotels Inhoudsopgave pagina

    E-Print Network [OSTI]

    Franssen, Michael

    + 3 Holiday Inn Eindhoven 4 + 5 Hampshire Hotel-Crown Eindhoven 6 + 7 Best Western Premier Art Hotel Eindhoven 8 + 9 Boutique Hotel Lumière 10 + 11 Sandton Hotel Eindhoven City Centre 12 + 13 Hampshire Hotel Parkzicht Eindhoven 14 + 15 Queen Hotel Eindhoven 16 + 17 Crown Inn Hotel Eindhoven 18 + 19 Hotel La Reine

  7. The CMS High Level Trigger

    E-Print Network [OSTI]

    Adam, W; Deldicque, C; Ero, J; Frühwirth, R; Jeitler, Manfred; Kastner, K; Köstner, S; Neumeister, N; Porth, M; Padrta P; Rohringer, H; Sakulinb, H; Strauss, J; Taurok, A; Walzel, G; Wulz, C E; Lowette, S; Van De Vyver, B; De Lentdecker, G; Vanlaer, P; Delaere, C; Lemaître, V; Ninane, A; van der Aa, O; Damgov, J; Karimäki, V; Kinnunen, R; Lampen, T; Lassila-Perini, K M; Lehti, S; Nysten, J; Tuominiemi, J; Busson, P; Todorov, T; Schwering, G; Gras, P; Daskalakis, G; Sfyrla, A; Barone, M; Geralis, T; Markou, C; Zachariadou, K; Hidas, P; Banerjee, S; Mazumdara, K; Abbrescia, M; Colaleoa, A; D'Amato, N; De Filippis, N; Giordano, D; Loddo, F; Maggi, M; Silvestris, L; Zito, G; Arcelli, S; Bonacorsi, D; Capiluppi, P; Dallavalle, G M; Fanfani, A; Grandi, C; Marcellini, S; Montanari, A; Odorici, F; Travaglini, R; Costa, S; Tricomi, A; Ciulli, a V; Magini, N; Ranieri, R; Berti, L; Biasotto, M; Gulminia, M; Maron, G; Toniolo, N; Zangrando, L; Bellato, M; Gasparini, U; Lacaprara, S; Parenti, A; Ronchese, P; Vanini, S; Zotto, S; Ventura P L; Perugia; Benedetti, D; Biasini, M; Fano, L; Servoli, L; Bagliesi, a G; Boccali, T; Dutta, S; Gennai, S; Giassi, A; Palla, F; Segneri, G; Starodumov, A; Tenchini, R; Meridiani, P; Organtini, G; Amapane, a N; Bertolino, F; Cirio, R; Kim, J Y; Lim, I T; Pac, Y; Joo, K; Kim, S B; Suwon; Choi, Y I; Yu, I T; Cho, K; Chung, J; Ham, S W; Kim, D H; Kim, G N; Kim, W; CKim, J; Oh, S K; Park, H; Ro, S R; Son, D C; Suh, J S; Aftab, Z; Hoorani, H; Osmana, A; Bunkowski, K; Cwiok, M; Dominik, Wojciech; Doroba, K; Kazana, M; Królikowski, J; Kudla, I; Pietrusinski, M; Pozniak, Krzysztof T; Zabolotny, W M; Zalipska, J; Zych, P; Goscilo, L; Górski, M; Wrochna, G; Zalewski, P; Alemany-Fernandez, R; Almeida, C; Almeida, N; Da Silva, J C; Santos, M; Teixeira, I; Teixeira, J P; Varelaa, J; Vaz-Cardoso, N; Konoplyanikov, V F; Urkinbaev, A R; Toropin, A; Gavrilov, V; Kolosov, V; Krokhotin, A; Oulianov, A; Stepanov, N; Kodolova, O L; Vardanyan, I; Ilic, J; Skoro, G P; Albajar, C; De Troconiz, J F; Calderón, A; López-Virto, M A; Marco, R; Martínez-Rivero, C; Matorras, F; Vila, I; Cucciarelli, S; Konecki, M; Ashby, S; Barney, D; Bartalini, P; Benetta, R; Brigljevic, V; Bruno, G; Cano, E; Cittolin, S; Della Negra, M; de Roeck, A; Favre, P; Frey, A; Funk, W; Futyan, D; Gigi, D; Glege, F; Gutleber, J; Hansen, M; Innocente, V; Jacobs, C; Jank, W; Kozlovszky, Miklos; Larsen, H; Lenzi, M; Magrans, I; Mannelli, M; Meijers, F; Meschi, E; Mirabito, L; Murray, S J; Oh, A; Orsini, L; Palomares-Espiga, C; Pollet, L; Rácz, A; Reynaud, S; Samyn, D; Scharff-Hansen, P; Schwick, C; Sguazzoni, G; Sinanis, N; Sphicas, P; Spiropulu, M; Strandlie, A; Taylor, B G; Van Vulpen, I; Wellisch, J P; Winkler, M; Villigen; Kotlinski, D; Zurich; Prokofiev, K; Speer, T; Dumanoglu, I; Bristol; Bailey, S; Brooke, J J; Cussans, D; Heath, G P; Machin, D; Nash, S J; Newbold, D; Didcot; Coughlan, A; Halsall, R; Haynes, W J; Tomalin, I R; Marinelli, N; Nikitenko, A; Rutherford, S; Seeza, C; Sharif, O; Antchev, G; Hazen, E; Rohlf, J; Wu, S; Breedon, R; Cox, P T; Murray, P; Tripathi, M; Cousins, R; Erhan, S; Hauser, J; Kreuzer, P; Lindgren, M; Mumford, J; Schlein, P E; Shi, Y; Tannenbaum, B; Valuev, V; Von der Mey, M; Andreevaa, I; Clare, R; Villa, S; Bhattacharya, S; Branson, J G; Fisk, I; Letts, J; Mojaver, M; Paar, H P; Trepagnier, E; Litvine, V; Shevchenko, S; Singh, S; Wilkinson, R; Aziz, S; Bowden, M; Elias, J E; Graham, G; Green, D; Litmaath, M; Los, S; O'Dell, V; Ratnikova, N; Suzuki, I; Wenzel, H; Acosta, D; Bourilkov, D; Korytov, A; Madorsky, A; Mitselmakher, G; Rodríguez, J L; Scurlock, B; Abdullin, S; Baden, D; Eno, S; Grassi, T; Kunori, S; Pavlon, S; Sumorok, K; Tether, S; Cremaldi, L M; Sanders, D; Summers, D; Osborne, I; Taylor, L; Tuura, L; Fisher,W C; Mans6, J; Stickland, D P; Tully, C; Wildish, T; Wynhoff, S; Padley, B P; Chumney, P; Dasu, S; Smith, W H; CMS Trigger Data Acquisition Group

    2006-01-01T23:59:59.000Z

    At the Large Hadron Collider at CERN the proton bunches cross at a rate of 40MHz. At the Compact Muon Solenoid experiment the original collision rate is reduced by a factor of O (1000) using a Level-1 hardware trigger. A subsequent factor of O(1000) data reduction is obtained by a software-implemented High Level Trigger (HLT) selection that is executed on a multi-processor farm. In this review we present in detail prototype CMS HLT physics selection algorithms, expected trigger rates and trigger performance in terms of both physics efficiency and timing.

  8. A high luminosity trigger design

    SciTech Connect (OSTI)

    Abolins, M.; Edmunds, D.; Laurens, P.; Linnemann, J.; Pi, B.

    1989-02-01T23:59:59.000Z

    In this paper, the authors describe the triggering system for the DO Experiment at the Tevatron proton-antiproton collider. In Section II we give an overview of the structure of the trigger and data acquisition systems with particular attention to the principal signal paths. The Calorimeter Trigger is described in Section III and in Section IV, the authors discuss some of the Monte Carlo studies that were done to study the trigger performance and determine its design parameters. They end with a summary of their current status in Section V and acknowledgement of support in Section VI.

  9. EM SSAB Recommendations & Letters | Department of Energy

    Office of Environmental Management (EM)

    and Letters - 2014-05 Included recommendations, letters, and other related materials. September 30, 2014 EM SSAB Recommendations and Letters - 2014-04 Included...

  10. Inducing Letter-by-letter Dyslexia in Normal Readers Daniel Fiset1

    E-Print Network [OSTI]

    Gosselin, Frédéric

    Inducing Letter-by-letter Dyslexia in Normal Readers Daniel Fiset1 , Fre´de´ric Gosselin1 , Caroline Blais1 , and Martin Arguin1,2 Abstract & Letter-by-letter (LBL) dyslexia is an acquired reading. Sequential and parallel letter processing in letter-by-letter dyslexia. Cogni- tive Neuropsychology, 19, 535

  11. Integral magnetic ignition pickup trigger

    SciTech Connect (OSTI)

    King, R.

    1992-10-27T23:59:59.000Z

    This patent describes a trigger system for the ignition system of an internal combustion engine having a crankcase with a rotatable crankshaft therein, and a flywheel on one end of the crankcase connected to an end of the crankshaft. It comprises: a nonferromagnetic disk-shaped hub for connection to the crankshaft and rotatable therewith on the end opposite the flywheel; and a stationary sensor mounted adjacent the hub for detecting impulses from the magnetically responsive elements as the hub rotates and utilizing the impulses to trigger the ignition system.

  12. The CDF silicon vertex trigger

    SciTech Connect (OSTI)

    B. Ashmanskas; A. Barchiesi; A. Bardi

    2003-06-23T23:59:59.000Z

    The CDF experiment's Silicon Vertex Trigger is a system of 150 custom 9U VME boards that reconstructs axial tracks in the CDF silicon strip detector in a 15 {mu}sec pipeline. SVT's 35 {mu}m impact parameter resolution enables CDF's Level 2 trigger to distinguish primary and secondary particles, and hence to collect large samples of hadronic bottom and charm decays. We review some of SVT's key design features. Speed is achieved with custom VLSI pattern recognition, linearized track fitting, pipelining, and parallel processing. Testing and reliability are aided by built-in logic state analysis and test-data sourcing at each board's input and output, a common inter-board data link, and a universal ''Merger'' board for data fan-in/fan-out. Speed and adaptability are enhanced by use of modern FPGAs.

  13. Topics for letter "s" | EMSL

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

    Development Lab Quiet Wing RadEMSL Virtual Tour Topics for letter "s" samples scale scanning scanning electron microscope scanning probe scanning tunneling microscopy...

  14. EMPLOYMENT VERIFICATION LETTER Student's Name: ________________________________________________________

    E-Print Network [OSTI]

    Bolding, M. Chad

    Rev. 10/04 EMPLOYMENT VERIFICATION LETTER Student's Name: ________________________________________________________ (Family Name) (First) (Middle Initial) TO BE COMPLETED BY EMPLOYER OR HIRING DEPARTMENT: Employment Department__________________________________________________ Employment Position

  15. Topics for letter "c" | EMSL

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

    Wing RadEMSL Virtual Tour Topics for letter "c" carbon carbon cycling carbon dioxide carbon sequestration Cascade catalysis catalytic reaction cation migration chemical...

  16. Topics for letter "W" | EMSL

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

    Virtual Tour Topics for letter "W" W-band pulsed EPR spectrometer Washington State Academy of Sciences Washington State University waste storage water water cycling Wiley Wiley...

  17. Topics for letter "p" | EMSL

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

    Wing RadEMSL Virtual Tour Topics for letter "p" particles patents physics plants pollution polymers pore scale postdoc postdocs postdoctoral Postdoctoral Opportunities...

  18. The Database Driven ATLAS Trigger Configuration System

    E-Print Network [OSTI]

    Martyniuk, Alex; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    This contribution describes the trigger selection configuration system of the ATLAS low- and high-level trigger (HLT) and the upgrades it received in preparation for LHC Run 2. The ATLAS trigger configuration system is responsible for applying the physics selection parameters for the online data taking at both trigger levels and the proper connection of the trigger lines across those levels. Here the low-level trigger consists of the already existing central trigger (CT) and the new Level-1 Topological trigger (L1Topo), which has been added for Run 2. In detail the tasks of the configuration system during the online data taking are Application of the selection criteria, e.g. energy cuts, minimum multiplicities, trigger object correlation, at the three trigger components L1Topo, CT, and HLT On-the-fly, e.g. rate-dependent, generation and application of prescale factors to the CT and HLT to adjust the trigger rates to the data taking conditions, such as falling luminosity or rate spikes in the detector readout ...

  19. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, Paul J. (Albuquerque, NM); Cowgill, Donald F. (Danville, CA)

    1990-01-01T23:59:59.000Z

    A laser-triggered vacuum switch has a material such as a alkali metal halide on the cathode electrode for thermally activated field emission of electrons and ions upon interaction with a laser beam, the material being in contact with the cathode with a surface facing the discharge gap. The material is preferably a mixture of KCl and Ti powders. The laser may either shine directly on the material, preferably through a hole in the anode, or be directed to the material over a fiber optic cable.

  20. XI UV Laser Trigger System

    SciTech Connect (OSTI)

    Brickeen, B.K.; Morelli, G.L.; Paiva, R.A.; Powell, C.A.; Sundvold, P.D.

    1999-01-26T23:59:59.000Z

    The X1 accelerator project at Sandia National Laboratory/New Mexico utilizes SF6 insulated, multi-stage, UV laser triggered gas switches. A 265 nm UV laser system was designed and built to generate eight simultaneous output pulses of 10 mJ each with a 13 nsec pulse width. A 1061 nm solid-state Nd:Cr:GSGG laser was frequency quadrupled using a two-stage doubling process. The 1061 nm fundamental laser energy was frequency doubled with a KTP crystal to 530 nm, achieving 65% conversion efficiency. The 530 nm output was frequency doubled with KD*P crystal to 265 nm, achieving conversion efficiency of 31%. The 265 nm beam pulse was split into eight parallel channels with a system of partially reflecting mirrors. Low timing jitter and stable energy output were achieved. The entire optical system was packaged into a rugged, o-ring sealed, aluminum structure 10''x19''x2.75''. The size of the electronics was 12''x8''x8''. Subsequent accelerator system requirements dictated a redesign of the triggering system for an output beam with less angular divergence. An unstable, crossed porro prism resonator was designed and incorporated into the system. The beam divergence of the redesigned system was successfully decreased to 0.97 mrad in the UV. The resulting frequency doubling efficiencies were 55% to 530 nm and 25% to 265 nm. The optical output remained at 10 mJ in each channel with an 11 nsec pulse width.

  1. Nuclear Safety Enforcement Letter issued to Sandia Corporation...

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

    Enforcement Letter issued to Sandia Corporation Nuclear Safety Enforcement Letter issued to Sandia Corporation 9222014 Enforcement Letter, Sandia Corporation, September 22, 2014...

  2. Smart trigger logic for focal plane arrays

    DOE Patents [OSTI]

    Levy, James E; Campbell, David V; Holmes, Michael L; Lovejoy, Robert; Wojciechowski, Kenneth; Kay, Randolph R; Cavanaugh, William S; Gurrieri, Thomas M

    2014-03-25T23:59:59.000Z

    An electronic device includes a memory configured to receive data representing light intensity values from pixels in a focal plane array and a processor that analyzes the received data to determine which light values correspond to triggered pixels, where the triggered pixels are those pixels that meet a predefined set of criteria, and determines, for each triggered pixel, a set of neighbor pixels for which light intensity values are to be stored. The electronic device also includes a buffer that temporarily stores light intensity values for at least one previously processed row of pixels, so that when a triggered pixel is identified in a current row, light intensity values for the neighbor pixels in the previously processed row and for the triggered pixel are persistently stored, as well as a data transmitter that transmits the persistently stored light intensity values for the triggered and neighbor pixels to a data receiver.

  3. The ATLAS Trigger System Commissioning and Performance

    E-Print Network [OSTI]

    A. Hamilton

    2010-10-07T23:59:59.000Z

    The ATLAS trigger has been used very successfully to collect collision data during 2009 and 2010 LHC running at centre of mass energies of 900 GeV, 2.36 TeV, and 7 TeV. This paper presents the ongoing work to commission the ATLAS trigger with proton collisions, including an overview of the performance of the trigger based on extensive online running. We describe how the trigger has evolved with increasing LHC luminosity and give a brief overview of plans for forthcoming LHC running.

  4. Commissioning of the ATLAS Muon Trigger Selection

    E-Print Network [OSTI]

    Elisa Musto

    2010-09-30T23:59:59.000Z

    The performance of the three-level ATLAS muon trigger as evaluated by using LHC data is presented. Events have been selected by using only the hardware-based Level-1 trigger in order to commission and to subsequently enable the (software-based) selections of the High Level Trigger. Studies aiming at selecting prompt muons from J/{\\psi} and at reducing non prompt muon contamination have been performed. A brief overview on how the muon triggers evolve with increasing luminosity is given.

  5. EMPLOYMENT VERIFICATION LETTER Student's Name: ________________________________________________________

    E-Print Network [OSTI]

    Bolding, M. Chad

    Rev. 10/04 EMPLOYMENT VERIFICATION LETTER Student's Name: ________________________________________________________ (Family Name) (First) (Middle Initial) TO BE COMPLETED BY EMPLOYER OR HIRING DEPARTMENT: Employment Department_ Clemson University ________________________________ Employment Posn Title

  6. CFL Manufacturers: ENERGY STAR Letters

    Broader source: Energy.gov [DOE]

    DOE issued letters to 25 manufacturers of compact fluorescent lamps (CFLs) involving various models after PEARL Cycle 9 testing indicated that the models do not meet the ENERGY STAR specification and, therefore, are disqualified from the ENERGY STAR Program.

  7. Intelligent trigger processor for the crystal box

    SciTech Connect (OSTI)

    Sanders, G.H.; Butler, H.S.; Cooper, M.D.

    1981-01-01T23:59:59.000Z

    A large solid angle modular NaI(Tl) detector with 432 phototubes and 88 trigger scintillators is being used to search simultaneously for three lepton flavor changing decays of muon. A beam of up to 10/sup 6/ muons stopping per second with a 6% duty factor would yield up to 1000 triggers per second from random triple coincidences. A reduction of the trigger rate to 10 Hz is required from a hardwired primary trigger processor described in this paper. Further reduction to < 1 Hz is achieved by a microprocessor based secondary trigger processor. The primary trigger hardware imposes voter coincidence logic, stringent timing requirements, and a non-adjacency requirement in the trigger scintillators defined by hardwired circuits. Sophisticated geometric requirements are imposed by a PROM-based matrix logic, and energy and vector-momentum cuts are imposed by a hardwired processor using LSI flash ADC's and digital arithmetic loci. The secondary trigger employs four satellite microprocessors to do a sparse data scan, multiplex the data acquisition channels and apply additional event filtering.

  8. Upf1 Phosphorylation Triggers Translational Repression

    E-Print Network [OSTI]

    Bedwell, David M.

    Upf1 Phosphorylation Triggers Translational Repression during Nonsense-Mediated mRNA Decay Olaf) during a pioneer round of translation. The subsequent binding of Upf1 to the EJC triggers Upf1 phosphorylation. We provide evi- dence that phospho-Upf1 functions after nonsense codon recognition during steps

  9. Outreach Letter Template for Clean Cities Coordinators Promoting...

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

    Letter Template for Clean Cities Coordinators Promoting the Workplace Charging Challenge ccoutreachlettertemplate-final.docx More Documents & Publications Outreach Letter...

  10. Dark Matter Triggers of Supernovae

    E-Print Network [OSTI]

    Peter W. Graham; Surjeet Rajendran; Jaime Varela

    2015-05-17T23:59:59.000Z

    The transit of primordial black holes through a white dwarf causes localized heating around the trajectory of the black hole through dynamical friction. For sufficiently massive black holes, this heat can initiate runaway thermonuclear fusion causing the white dwarf to explode as a supernova. The shape of the observed distribution of white dwarfs with masses up to $1.25 M_{\\odot}$ rules out primordial black holes with masses $\\sim 10^{19}$ gm - $10^{20}$ gm as a dominant constituent of the local dark matter density. Black holes with masses as large as $10^{24}$ gm will be excluded if recent observations by the NuStar collaboration of a population of white dwarfs near the galactic center are confirmed. Black holes in the mass range $10^{20}$ gm - $10^{22}$ gm are also constrained by the observed supernova rate, though these bounds are subject to astrophysical uncertainties. These bounds can be further strengthened through measurements of white dwarf binaries in gravitational wave observatories. The mechanism proposed in this paper can constrain a variety of other dark matter scenarios such as Q balls, annihilation/collision of large composite states of dark matter and models of dark matter where the accretion of dark matter leads to the formation of compact cores within the star. White dwarfs, with their astronomical lifetimes and sizes, can thus act as large space-time volume detectors enabling a unique probe of the properties of dark matter, especially of dark matter candidates that have low number density. This mechanism also raises the intriguing possibility that a class of supernova may be triggered through rare events induced by dark matter rather than the conventional mechanism of accreting white dwarfs that explode upon reaching the Chandrasekhar mass.

  11. Time and event triggered communication scheduling for automotive applications

    E-Print Network [OSTI]

    Johansson, Roger

    Time and event triggered communication scheduling for automotive applications ROGER JOHANSSON and event triggered communication scheduling for automotive applications 1 ROGER JOHANSSON Department triggered communication scheduling for automotive applications ROGER JOHANSSON © ROGER JOHANSSON, 2004

  12. Letters of Outreach to Partner Communities

    Broader source: Energy.gov [DOE]

    Letters of Outreach to Partner Communities, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  13. The dangers of being trigger--happy

    E-Print Network [OSTI]

    Dale, J E; Bressert, E

    2015-01-01T23:59:59.000Z

    We examine the evidence offered for triggered star formation against the backdrop provided by recent numerical simulations of feedback from massive stars at or below giant molecular cloud sizescales. We compile a catalogue of sixty--seven observational papers, mostly published over the last decade, and examine the signposts most commonly used to infer the presence of triggered star formation. We then determine how well these signposts perform in a recent suite of hydrodynamic simulations of star formation including feedback from O--type stars performed by Dale et al (2012a, b, 2013a, b, 2014). We find that none of the observational markers improve the chances of correctly identifying a given star as triggered by more than factors of two at most. This limits the fidelity of these techniques in interpreting star formation histories. We therefore urge caution in interpreting observations of star formation near feedback--driven structures in terms of triggering.

  14. Intriguing DNA Editor Has a Structural Trigger

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

    Intriguing DNA Editor Has a Structural Trigger Print A powerful new tool for genome editing and gene regulation has emerged in the form of a family of enzymes known as Cas9. Cas9...

  15. Ocean fronts trigger high latitude phytoplankton blooms

    E-Print Network [OSTI]

    Taylor, John R.

    Density fronts are ubiquitous features of the upper ocean. Here, numerical simulations show that restratification at fronts inhibits vertical mixing, triggering phytoplankton blooms in low-light conditions. The stability ...

  16. atlas muon trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  17. atlas trigger monitoring: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  18. atlas central trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  19. atrial arrhythmia triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  20. arachidonic acid triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  1. activation trigger aminoglycoside-mediated: Topics by E-print...

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  2. active myofascial trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  3. arabidopsis leaves triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  4. atlas trigger event: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  5. acidic organelles triggered: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  6. atlas jet trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  7. atlas level-2 trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  8. acute hepatitis triggered: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  9. engineering LETTER FROM THE DEAN

    E-Print Network [OSTI]

    Hone, James

    exploring columbia engineering majors #12;LETTER FROM THE DEAN Making a decision about your engineering or applied science major can seem like a daunting dilemma, but, with the right approach. Although engineering is a global, interdisciplinary field, once you choose your major, it will set you

  10. Sequentially Triggered Star Formation in OB Associations

    E-Print Network [OSTI]

    Thomas Preibisch; Hans Zinnecker

    2006-10-27T23:59:59.000Z

    We discuss observational evidence for sequential and triggered star formation in OB associations. We first review the star formation process in the Scorpius-Centaurus OB association, the nearest OB association to the Sun, where several recent extensive studies have allowed us to reconstruct the star formation history in a rather detailed way. We then compare the observational results with those obtained for other OB associations and with recent models of rapid cloud and star formation in the turbulent interstellar medium. We conclude that the formation of whole OB subgroups (each consisting of several thousand stars) requires large-scale triggering mechanisms such as shocks from expanding wind and supernova driven superbubbles surrounding older subgroups. Other triggering mechanisms, like radiatively driven implosion of globules, also operate, but seem to be secondary processes, forming only small stellar groups rather than whole OB subgroups with thousands of stars.

  11. Self-triggering superconducting fault current limiter

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY); Tekletsadik, Kasegn (Rexford, NY)

    2008-10-21T23:59:59.000Z

    A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. The matrix fault current limiter comprises a fault current limiter module that includes a superconductor which is electrically coupled in parallel with a trigger coil, wherein the trigger coil is magnetically coupled to the superconductor. The current surge doing a fault within the electrical power network will cause the superconductor to transition to its resistive state and also generate a uniform magnetic field in the trigger coil and simultaneously limit the voltage developed across the superconductor. This results in fast and uniform quenching of the superconductors, significantly reduces the burnout risk associated with non-uniformity often existing within the volume of superconductor materials. The fault current limiter modules may be electrically coupled together to form various "n" (rows).times."m" (columns) matrix configurations.

  12. Environmental Triggers that Affect Children's Health

    E-Print Network [OSTI]

    Environmental Triggers that Affect Children's Health A Clean Environment Can Lead to Better Health! An online course for child care providers and parents, presented by the Texas AgriLife Extension Service Children's Health Course developed by Janie L. Harris, M.Ed. Extension Housing and Environment Specialist

  13. Enforcement Letter, Parsons Technology Development & Fabrication...

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

    Technology Development & Fabrication Complex - April 13, 2010 Enforcement Letter, Parsons Technology Development & Fabrication Complex - April 13, 2010 April 13, 2010 Issued to...

  14. NNSA Policy Letter: NAP-4B

    National Nuclear Security Administration (NNSA)

    V. REFERENCES: NNSA Policy Letter BOP-003.0501, "Deviation to DEAR 970.1504 Contract Pricing, and associated 970.521 5 clauses." Administrator National Nuclear Security...

  15. Enforcement Letter, Westinghouse Savannah River Company - November...

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

    Savannah River Site On November 14, 2003, the U.S. Department of Energy (DOE) issued a nuclear safety Enforcement Letter to Westinghouse Savannah River Company related to...

  16. POLICY GUIDANCE MEMORANDUM #29 Employment Offers Letters Performance...

    Energy Savers [EERE]

    9 Employment Offers Letters Performance Management POLICY GUIDANCE MEMORANDUM 29 Employment Offers Letters Performance Management This memorandum is to ensure compliance with DOE...

  17. Policy Flash 2014-29 Acquisition Letter 07 - Benchmark Compensation...

    Office of Environmental Management (EM)

    Letter 07 - Benchmark Compensation Amount for Individual Executive Salary Actions Policy Flash 2014-29 Acquisition Letter 07 - Benchmark Compensation Amount for Individual...

  18. LETTER TO SUCCESSFUL COMPANY OR ESCO | Department of Energy

    Office of Environmental Management (EM)

    SUCCESSFUL COMPANY OR ESCO LETTER TO SUCCESSFUL COMPANY OR ESCO Document features a letter template and sample to help Federal agencies inform an energy services company (ESCO)...

  19. ESPC ENABLE PRELIMINARY LETTER TO UNSUCCESSFUL ESCO OFFERORS...

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

    PRELIMINARY LETTER TO UNSUCCESSFUL ESCO OFFERORS GUIDE AND TEMPLATE ESPC ENABLE PRELIMINARY LETTER TO UNSUCCESSFUL ESCO OFFERORS GUIDE AND TEMPLATE Document describes the...

  20. LETTER TO UNSUCCESSFUL COMPANY OR ESCO | Department of Energy

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

    UNSUCCESSFUL COMPANY OR ESCO LETTER TO UNSUCCESSFUL COMPANY OR ESCO Document features a letter template and sample to help Federal agencies inform energy service companies (ESCOs)...

  1. Enforcement Letter, Babcock & Wilcox Technical Services Y-12...

    Energy Savers [EERE]

    Enforcement Letter, Babcock & Wilcox Technical Services Y-12, LLC - July 10, 2009 Enforcement Letter, Babcock & Wilcox Technical Services Y-12, LLC - July 10, 2009 July 10, 2009...

  2. High Level Trigger Configuration and Handling of Trigger Tables in the CMS Filter Farm

    SciTech Connect (OSTI)

    Bauer, G; Behrens, U; Boyer, V; Branson, J; Brett, A; Cano, E; Carboni, A; Ciganek, M; Cittolin, S; O'dell, V; Erhan, S; Gigi, D; Glege, F; Gomez-Reino, R; Gulmini, M; Gutleber, J; Hollar, J; Lange, D; Kim, J C; Klute, M; Lipeles, E; Perez, J L; Maron, G; Meijers, F; Meschi, E; Moser, R; Mlot, E G; Murray, S; Oh, A; Orsini, L; Paus, C; Petrucci, A; Pieri, M; Pollet, L; Racz, A; Sakulin, H; Sani, M; Schieferdecker, P; Schwick, C; Sumorok, K; Suzuki, I; Tsirigkas, D; Varela, J

    2009-11-22T23:59:59.000Z

    The CMS experiment at the CERN Large Hadron Collider is currently being commissioned and is scheduled to collect the first pp collision data in 2008. CMS features a two-level trigger system. The Level-1 trigger, based on custom hardware, is designed to reduce the collision rate of 40 MHz to approximately 100 kHz. Data for events accepted by the Level-1 trigger are read out and assembled by an Event Builder. The High Level Trigger (HLT) employs a set of sophisticated software algorithms, to analyze the complete event information, and further reduce the accepted event rate for permanent storage and analysis. This paper describes the design and implementation of the HLT Configuration Management system. First experiences with commissioning of the HLT system are also reported.

  3. The LHCb trigger and its performance in 2011

    E-Print Network [OSTI]

    Williams, M.

    This paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm ...

  4. Dynamic Filtering and Mining Triggers in Mesoscale Meteorology Forecasting

    E-Print Network [OSTI]

    Plale, Beth

    Dynamic Filtering and Mining Triggers in Mesoscale Meteorology Forecasting Nithya N. Vijayakumar {rramachandran, xli}@itsc.uah.edu Abstract-- Mesoscale meteorology forecasting as a data driven application Triggers, Data Mining, Stream Processing, Meteorology Forecasting I. INTRODUCTION Mesoscale meteorologists

  5. Universiteitsbibliotheek Utrecht Appendix G1 MODEL LETTERS

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Universiteitsbibliotheek Utrecht Appendix G1 MODEL LETTERS In order to request permission's Office Academiegebouw (University Hall) Domplein 29 3512 JE Utrecht Tel 0031 - (0)30 -253 8259 #12;Universiteitsbibliotheek Utrecht Model Letter 1 Permission of the publisher to incorporate the doctoral thesis

  6. Pergamon Tetrahedron Letters 0 (1999) 15 TETRAHEDRON

    E-Print Network [OSTI]

    Shelnutt, John A.

    1999-01-01T23:59:59.000Z

    Pergamon Tetrahedron Letters 0 (1999) 1­5 TETRAHEDRON LETTERS Novel dodecaarylporphyrins: synthesis An investigation of the synthesis of dodecaarylporphyrins using the Suzuki coupling reaction of arylboronic acids appropriately substituted pyrroles. Recently, Chan et al.11 reported the application of the Suzuki coupling

  7. Gamma Ray Array Detector Trigger Sub-System

    E-Print Network [OSTI]

    Du Zhong-Wei; Su Hong; Qian Yi; Kong Jie

    2013-05-19T23:59:59.000Z

    Gamma Ray Array Detector (GRAD) is one of External Target Facility (ETF) subsystems at the Heavy Ion Research Facility at Lanzhou. The trigger subsystem of the GRAD has been developed based on Field Programmable Gate Array (FPGAs) and PXI interface. The GRAD trigger subsystem makes prompt L1 trigger decisions to select valid events. These decisions are made by processing the hit signals from 1024 CsI scintillators of the GRAD. According to the physical requirements, the GRAD trigger subsystem generates 12-bit trigger signals that are passed to the ETF global trigger system. In addition, the GRAD trigger subsystem generates trigger data that are packed and transmitted to the host computer via PXI bus for off-line analysis. The trigger processing is implemented in the front-end electronics and one FPGA of the trigger module. The logic of PXI transmission and reconfiguration is implemented in the other FPGA of the trigger module. The reliable and efficient performance in the Gamma-ray experiments demonstrates that the GRAD trigger subsystem is capable to satisfy the physical requirements.

  8. Jet Trigger in the H1 Experiment at HERA

    SciTech Connect (OSTI)

    Dubak, Ana [University of Montenegro, Cetinjski put bb, Podgorica (Montenegro)

    2007-04-23T23:59:59.000Z

    A novel calorimeter trigger at the first level is developed to complement existing LAr trigger in the H1 experiment at HERA. It searches for localised energy depositions in the calorimeter, thus avoiding summing up noise distributed over large parts of the calorimeter. This will improve the efficiency of triggering on low energy depositions in the calorimeter.

  9. Enforcement Letters | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 FederalTexas Energyof 2005 atDepartment of Energy April14Letters

  10. New methods for trigger electronics development

    SciTech Connect (OSTI)

    Cleland, W.E.; Stern, E.G. [Univ. of Pittsburgh, PA (United States)

    1991-12-31T23:59:59.000Z

    The large and complex nature of RHIC experiments and the tight time schedule for their construction requires that new techniques for designing the electronics should be employed. This is particularly true of the trigger and data acquisition electronics which has to be ready for turn-on of the experiment. We describe the use of the Workview package from VIEWlogic Inc. for design, simulation, and verification of a flash ADC readout system. We also show how field-programmable gate arrays such as the Xilinx 4000 might be employed to construct or prototype circuits with a large number of gates while preserving flexibility.

  11. Triggering events with GPU at ATLAS

    E-Print Network [OSTI]

    Kama, Sami; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The growing complexity of events produced in LHC collisions demands more and more computing power both for the on line selection and for the offline reconstruction of events. In recent years, the explosive performance growth of massively parallel processors like Graphical Processing Units both in computing power and in low energy consumption, make GPU extremely attractive for using them in a complex high energy experiment like ATLAS. Together with the optimization of reconstruction algorithms exploiting this new massively parallel paradigm, a small scale prototype of the full ATLAS High Level Trigger exploiting GPU has been implemented. We discuss the integration procedure of this prototype, the achieved performance and the prospects for the future.

  12. Triggered star formation in the Magellanic Clouds

    E-Print Network [OSTI]

    B. G. Elmegreen; J. Palous; Kenji Bekki

    2006-01-01T23:59:59.000Z

    Abstract. We discuss how tidal interaction between the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC), and the Galaxy triggers galaxy-wide star formation in the Clouds for the last ? 0.2 Gyr based on our chemodynamical simulations on the Clouds. Our simulations demonstrate that the tidal interaction induces the formation of asymmetric spiral arms with high gas densities and consequently triggers star formation within the arms in the LMC. Star formation rate in the present LMC is significantly enhanced just above the eastern edge of the LMC’s stellar bar owing to the tidal interaction. The location of the enhanced star formation is very similar to the observed location of 30 Doradus, which suggests that the formation of 30 Doradus is closely associated with the last Magellanic collision about 0.2 Gyr ago. The tidal interaction can dramatically compress gas initially within the outer part of the SMC so that new stars can be formed from the gas to become intergalactic young stars in the inter-Cloud region (e.g., the Magellanic Bridge). The metallicity distribution function of the newly formed stars in the Magellanic Bridge has a peak of [Fe/H] ? ?0.8, which is significantly lower than the stellar metallicity of the SMC.

  13. Engineering Challenges in Antiproton Triggered Fusion Propulsion

    SciTech Connect (OSTI)

    Cassenti, Brice [Department. of Engineering and Science, Rensselaer Polytechnic Institute, 275 Windsor Avenue, Hattford, CT 06120 (United States); Kammash, Terry [Nuclear Engineering Department, University of Michigan, Ann Arbor, MI 48109 (United States)

    2008-01-21T23:59:59.000Z

    During the last decade antiproton triggered fusion propulsion has been investigated as a method for achieving high specific impulse, high thrust in a nuclear pulse propulsion system. In general the antiprotons are injected into a pellet containing fusion fuel with a small amount of fissionable material (i.e., an amount less than the critical mass) where the products from the fission are then used to trigger a fusion reaction. Initial calculations and simulations indicate that if magnetically insulated inertial confinement fusion is used that the pellets should result in a specific impulse of between 100,000 and 300,000 seconds at high thrust. The engineering challenges associated with this propulsion system are significant. For example, the antiprotons must be precisely focused. The pellet must be designed to contain the fission and initial fusion products and this will require strong magnetic fields. The fusion fuel must be contained for a sufficiently long time to effectively release the fusion energy, and the payload must be shielded from the radiation, especially the excess neutrons emitted, in addition to many other particles. We will review the recent progress, possible engineering solutions and the potential performance of these systems.

  14. Letter

    E-Print Network [OSTI]

    Anthony Rizzie

    2011-06-09T23:59:59.000Z

    The course will include online lectures (in video and powerpoint presentations), lesson outlines, online homework, and help via email. All of this material.

  15. Letter

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5Let us count the ways. We've built programs7

  16. DYER ISLAND CONSERVATION TRUST LETTER OF CONCERN

    E-Print Network [OSTI]

    de Villiers, Marienne

    ..........................................................................................................................8 4 GENERAL POTENTIAL IMPACTS OF THE NPS ON THE MARINE ENVIRONMENTDYER ISLAND CONSERVATION TRUST LETTER OF CONCERN ASSOCIATED WITH THE ESTABLISHMENT OF A NUCLEAR....................................................................................................................................6 3 THE MARINE ENVIRONMENT SURROUNDING BANTAMSKLIP

  17. ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2012)

    E-Print Network [OSTI]

    Gerber, Edwin

    2012-01-01T23:59:59.000Z

    ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2012) Published online in Wiley Online Library using National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP) concentrations and sea- surface temperatures (SSTs). These integrations enable the relative role of ozone

  18. Policy Flash 2013-51 311 Notice Aquisition Letter 2013-05 Financial...

    Energy Savers [EERE]

    3-51 311 Notice Aquisition Letter 2013-05 Financial Assistance Letter 2013-03 Policy Flash 2013-51 311 Notice Aquisition Letter 2013-05 Financial Assistance Letter 2013-03...

  19. Method for modifying trigger level for adsorber regeneration

    DOE Patents [OSTI]

    Ruth, Michael J.; Cunningham, Michael J.

    2010-05-25T23:59:59.000Z

    A method for modifying a NO.sub.x adsorber regeneration triggering variable. Engine operating conditions are monitored until the regeneration triggering variable is met. The adsorber is regenerated and the adsorbtion efficiency of the adsorber is subsequently determined. The regeneration triggering variable is modified to correspond with the decline in adsorber efficiency. The adsorber efficiency may be determined using an empirically predetermined set of values or by using a pair of oxygen sensors to determine the oxygen response delay across the sensors.

  20. CDF/MEMO/TRIGGER/CDFR/5424 Version 1.0

    E-Print Network [OSTI]

    /4) + CSP Hit Bit 05 CMU High Pt Stub + CMP Stub (3/4) + CSP Hit 1 #12; Bit 06 Dimuon Test Bit - 2 CMU Low > 120deg) Bit 18 Cosmic Trigger II : 2 CMP Stubs (3/4) + CSP Hits (Top & Bottom) Bit 19 Bunch Zero Crossing Trigger Note A: CSP hits will be included in the de#12;nition of trigger bits 4 and 5. However, we

  1. Radio Triggered Star Formation in Cooling Flows

    E-Print Network [OSTI]

    B. R. McNamara

    1999-11-08T23:59:59.000Z

    The giant galaxies located at the centers of cluster cooling flows are frequently sites of vigorous star formation. In some instances, star formation appears to have been triggered by the galaxy's radio source. The colors and spectral indices of the young populations are generally consistent with short duration bursts or continuous star formation for durations much less than 1 Gyr, which is less than the presumed ages of cooling flows. The star formation properties are inconsistent with fueling by a continuously accreting cooling flow, although the prevalence of star formation is consistent with repeated bursts and periodic refueling. Star formation may be fueled, in some cases, by cold material stripped from neighboring cluster galaxies.

  2. Triggering events with GPUs at ATLAS

    E-Print Network [OSTI]

    Kama, Sami; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The growing complexity of events produced in LHC collisions demands more and more computing power both for the online selection and for the offline reconstruction of events. In recent years, the explosive performance growth of massively parallel processors like Graphics Processing Units~(GPU) both in computing power and in low energy consumption, make GPU extremely attractive for using them in a complex high energy experiment like ATLAS. Together with the optimization of reconstruction algorithms this new massively parallel paradigm is exploited. For this purpose a small scale prototype of the full ATLAS High Level Trigger involving GPU has been implemented. We discuss the integration procedure of this prototype, the achieved performance and the prospects for the future

  3. Commissioning of the ATLAS Level-1 Trigger with Cosmic Rays

    E-Print Network [OSTI]

    Thilo Pauly

    2007-11-06T23:59:59.000Z

    The ATLAS detector at CERN's Large Hadron Collider will be exposed to proton-proton collisions from beams crossing at 40 MHz. A three-level trigger system was designed to select potentially interesting events and reduce the incoming rate to 100-200 Hz. The first trigger level (LVL1) is implemented in custom-built electronics, the second and third trigger levels are realized in software. Based on calorimeter information and hits in dedicated muon-trigger detectors, the LVL1 decision is made by the central-trigger processor yielding an output rate of less than 100 kHz. The allowed latency for the trigger decision at this stage is less than 2.5 microseconds. Installation of the final LVL1 trigger system at the ATLAS site is in full swing, to be completed later this year. We present a status report of the main components of the first-level trigger and the in-situ commissioning of the full trigger chain with cosmic-ray muons.

  4. Letter to NeuroscienceLetter to Neuroscience ACROLEIN INFLICTS AXONAL MEMBRANE DISRUPTION AND

    E-Print Network [OSTI]

    Shi, Riyi

    Letter to NeuroscienceLetter to Neuroscience ACROLEIN INFLICTS AXONAL MEMBRANE DISRUPTION, IN 47907-1244, USA Key words: free radicals, lipid peroxidation. We have examined the e¡ect of acrolein found that 200 WM acrolein, but not 50 WM, induced a time-dependent loss of compound action potential

  5. Trigger LVL1 "Tower Builder" Add: Cables transmission of fast pulses for: The level 1 calorimeter-trigger in ATLAS (sent on 24-01-1995)

    E-Print Network [OSTI]

    Pascual, J

    1994-01-01T23:59:59.000Z

    Trigger LVL1 "Tower Builder" Add: Cables transmission of fast pulses for: The level 1 calorimeter-trigger in ATLAS (sent on 24-01-1995)

  6. 2003 CS 647b Report Transmittal Letter to Dick Cheney

    Broader source: Energy.gov [DOE]

    2003 CS 647b Report Transmittal Letter to Dick Cheney This letter is in response to the annual Competitive Sourcing reporting requirement contained in section 647(b) of Division F of the...

  7. Policy Flash 20 Acquisition Letter 2014-05/Financial Acquisition...

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

    301 Contract Award letter FY2014 March 5.pdf Attachment 2A1 DOE Section 301 Financial Assistance Letter FY2014 March 5 2014.pdf Attachment 2A2 DOE Section 301 Financial Assistance...

  8. Triggering for Magnetic Field Measurements of the LCLS Undulators

    SciTech Connect (OSTI)

    Hacker, Kirsten

    2010-12-13T23:59:59.000Z

    A triggering system for magnetic field measurements of the LCLS undulators has been built with a National Instruments PXI-1002 and a Xylinx FPGA board. The system generates single triggers at specified positions, regardless of encoder sensor jitter about a linear scale.

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

    E-Print Network [OSTI]

    Nakahama, Yu; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The ATLAS trigger has been used very successfully for the online event selection 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 early 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 review the upgrades to the ATLAS Trigger system that have been implemented during the shutdown and that will allow us to cope with these increased trigger rates while maintaining or even improving our efficiency to select relevant physics processes. This includes 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 prev...

  10. Sandia aids FBI in investigation of anthrax letters

    ScienceCinema (OSTI)

    Paul Kotula and Joe Michael

    2010-01-08T23:59:59.000Z

    Paul Kotula and Joe Michael of Sandia National Laboratories discuss their work in the FBI anthrax letters investigation.

  11. Sandia aids FBI in investigation of anthrax letters

    SciTech Connect (OSTI)

    Paul Kotula and Joe Michael

    2008-11-19T23:59:59.000Z

    Paul Kotula and Joe Michael of Sandia National Laboratories discuss their work in the FBI anthrax letters investigation.

  12. Half a Century of Physical Review Letters

    ScienceCinema (OSTI)

    Robert Garisto

    2010-01-08T23:59:59.000Z

    Fifty years ago, Sam Goudsmit started an experiment: the journal Physical Review Letters.  Since 1958, the experiment has thrived. PRL has gone through many changes, published many important papers, and become a leader in international scientific publication.  I will trace the rise of PRL from its early 20th century roots as "Letters to the Editor," through changes in editorial process and advents of new technology. Along the way I'll show what has gone on behind the scenes, and give a glimpse of our plans for the future.  I'll also give some advice to would-be authors and referees, illustrated with interesting correspondence we've received.

  13. Half a Century of Physical Review Letters

    SciTech Connect (OSTI)

    Garisto, Robert (Physical Review Letters) [Physical Review Letters

    2008-10-15T23:59:59.000Z

    Fifty years ago, Sam Goudsmit started an experiment: the journal Physical Review Letters. Since 1958, the experiment has thrived. PRL has gone through many changes, published many important papers, and become a leader in international scientific publication. I will trace the rise of PRL from its early 20th century roots as 'Letters to the Editor,' through changes in editorial process and advents of new technology. Along the way I'll show what has gone on behind the scenes, and give a glimpse of our plans for the future. I'll also give some advice to would-be authors and referees, illustrated with interesting correspondence we've received.

  14. Half a Century of Physical Review Letters

    SciTech Connect (OSTI)

    Robert Garisto

    2008-10-15T23:59:59.000Z

    Fifty years ago, Sam Goudsmit started an experiment: the journal Physical Review Letters.  Since 1958, the experiment has thrived. PRL has gone through many changes, published many important papers, and become a leader in international scientific publication.  I will trace the rise of PRL from its early 20th century roots as "Letters to the Editor," through changes in editorial process and advents of new technology. Along the way I'll show what has gone on behind the scenes, and give a glimpse of our plans for the future.  I'll also give some advice to would-be authors and referees, illustrated with interesting correspondence we've received.

  15. Letter to Successful Company | Department of Energy

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

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

  16. Letter to Unsuccessful Company | Department of Energy

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

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

  17. Commissioning of the ATLAS Electron and Photon Trigger Selection

    E-Print Network [OSTI]

    Cibran Santamarina Rios for the ATLAS collaboration

    2010-09-30T23:59:59.000Z

    Since the start-up of the LHC end of 2009, the trigger commissioning is in full swing. The ATLAS trigger system is divided into three levels: the hardware-based first level trigger, and the software-based second level trigger and Event Filter, collectively referred to as the High Level Trigger (HLT). Initially, events have been selected online based on the Level-1 selections with the HLT algorithms run but not rejecting any events. This has been an important step in the commissioning of these triggers to ensure their correct functioning and subsequently to enable the HLT selections. Due to increasing LHC luminosity and the large QCD cross section, this has been a vital step to select leptons from J/$\\Psi$, bottom, charm, W and Z decays. This presentation gives an overview of the trigger performance of the electron and photon selection. Comparisons of the online selection variables with the offline reconstruction are shown as well as comparisons of data with MC simulations on which the current selection tuning is performed.

  18. Operation of the Upgraded ATLAS Level-1 Central Trigger System

    E-Print Network [OSTI]

    Glatzer, Julian Maximilian Volker; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The ATLAS Level-1 Central Trigger (L1CT) system is a central part of ATLAS data-taking and has undergone a major upgrade for Run 2 of the LHC, in order to cope with the expected increase of instantaneous luminosity of a factor of 2 with respect to Run 1. The upgraded hardware offers more flexibility in the trigger decisions due to the double amount of trigger inputs and usable trigger channels. It also provides an interface to the new topological trigger system. Operationally - particularly useful for commissioning, calibration and test runs - it allows concurrent running of up to 3 different sub-detector combinations. In this contribution, we give an overview of the operational software framework of the L1CT system with particular emphasis of the configuration, controls and monitoring aspects. The software framework allows a consistent configuration with respect to the ATLAS experiment and the LHC machine, upstream and downstream trigger processors, and the data acquisition. Trigger and dead-time rates are m...

  19. A FLUX ROPE ERUPTION TRIGGERED BY JETS

    SciTech Connect (OSTI)

    Guo Juan; Zhang Hongqi; Deng Yuanyong; Lin Jiaben; Su Jiangtao [Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012 (China); Liu Yu, E-mail: guojuan@bao.ac.c [Yunnan Astronomical Observatory, National Astronomical Observatories, Kunming 650011 (China)

    2010-03-10T23:59:59.000Z

    We present an observation of a filament eruption caused by recurrent chromospheric plasma injections (surges/jets) on 2006 July 6. The filament eruption was associated with an M2.5 two-ribbon flare and a coronal mass ejection (CME). There was a light bridge in the umbra of the main sunspot of NOAA 10898; one end of the filament was terminated at the region close to the light bridge, and recurrent surges were observed to be ejected from the light bridge. The surges occurred intermittently for about 8 hr before the filament eruption, and finally a clear jet was found at the light bridge to trigger the filament eruption. We analyzed the evolutions of the relative darkness of the filament and the loaded mass by the continuous surges quantitatively. It was found that as the occurrence of the surges, the relative darkness of the filament body continued growing for about 3-4 hr, reached its maximum, and kept stable for more than 2 hr until it erupted. If suppose 50% of the ejected mass by the surges could be trapped by the filament channel, then the total loaded mass into the filament channelwill be about 0.57x10{sup 16} g with a momentum of 0.57x10{sup 22} g cm s{sup -1} by 08:08 UT, which is a non-negligible effect on the stability of the filament. Based on the observations, we present a model showing the important role that recurrent chromospheric mass injection play in the evolution and eruption of a flux rope. Our study confirms that the surge activities can efficiently supply the necessary material for some filament formation. Furthermore, our study indicates that the continuous mass with momentum loaded by the surge activities to the filament channel could make the filament unstable and cause it to erupt.

  20. GREEK LETTERS Learn the names of Greek letters not just the obvious ones like alpha,

    E-Print Network [OSTI]

    Lozano-Robledo, Alvaro

    GREEK LETTERS Learn the names of Greek letters ­ not just the obvious ones like alpha, beta, and pi A ´ (alpha) a B ´ (beta) b ´µµ (gamma) g ´ (delta) d E ´o (epsilon) e Z ´ (zeta) z H ´ (eta) ee ´ (theta atom ´o book ´o basic Bo ´ Boston µ´ geometry ´ language ´ French µo´ democracy ´o tooth ´ energy E

  1. RESEARCH LETTERS Vibrating insoles and balance

    E-Print Network [OSTI]

    Collins, James J.

    , and such changes have been associated with diminished motor performance. Input noise can enhance sensory and motor be substantially reduced through the application of mechanical noise to the feet via vibrating insoles. We usedRESEARCH LETTERS Vibrating insoles and balance control in elderly people Attila A Priplata, James B

  2. Canadian Nuclear Astrophysics Institute Letter of Intent

    E-Print Network [OSTI]

    Herwig, Falk

    nuclear physics data as well as astronomical observations, both of which are critically needed in order 1 Canadian Nuclear Astrophysics Institute Letter of Intent Final version April 29, 2011), astrophysics and nuclear physics theory and computational simulation (TC) as well as nuclear physics

  3. ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2013)

    E-Print Network [OSTI]

    Lee, Sukyoung

    2013-01-01T23:59:59.000Z

    ATMOSPHERIC SCIENCE LETTERS Atmos. Sci. Let. (2013) Published online in Wiley Online Library Sciences, Seoul National University, Seoul, South Korea *Correspondence to: C. Yoo, Center for Atmosphere). A number of studies have shown that the MJO plays an important role in modulating the extratropical cir

  4. alarmone signalling triggers: Topics by E-print Network

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

    30 Gamma Ray Array Detector Trigger Sub-System Nuclear Experiment (arXiv) Summary: Gamma Ray Array Detector (GRAD) is one of External Target Facility (ETF) subsystems at the...

  5. Advanced integrated safeguards using front-end-triggering devices

    SciTech Connect (OSTI)

    Howell, J.A.; Whitty, W.J.

    1995-12-01T23:59:59.000Z

    This report addresses potential uses of front-end-triggering devices for enhanced safeguards. Such systems incorporate video surveillance as well as radiation and other sensors. Also covered in the report are integration issues and analysis techniques.

  6. Controls on earthquake rupture and triggering mechanisms in subduction zones

    E-Print Network [OSTI]

    Llenos, Andrea Lesley

    2010-01-01T23:59:59.000Z

    Large earthquake rupture and triggering mechanisms that drive seismicity in subduction zones are investigated in this thesis using a combination of earthquake observations, statistical and physical modeling. A comparison ...

  7. atlas tau trigger: Topics by E-print Network

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

    beyond the Standard Model, and to get precise measurements of the properties of the Higgs boson decaying to tau-leptons. We present the performance of the hadronic tau trigger...

  8. Front-end electronics and trigger systems - status and challenges

    E-Print Network [OSTI]

    Spieler, Helmuth G

    2008-01-01T23:59:59.000Z

    of the 12th Workshop on Electronics For LHC and Future19-24, 2007 Front-end electronics and trigger systems –about a revolution in front-end electronics for large- scale

  9. A self-triggered readout for a time projection chamber

    E-Print Network [OSTI]

    Werner, Andrew Thompson, 1981-

    2004-01-01T23:59:59.000Z

    A self-triggering readout for a time projection chamber (TPC) is presented, with applications to novel forms of data acquisition for high energy physics application. The construction and initial testing of the readout ...

  10. Bioresponsive Mesoporous Silica Nanoparticles for Triggered Drug Release

    E-Print Network [OSTI]

    Singh, Neetu

    Mesoporous silica nanoparticles (MSNPs) have garnered a great deal of attention as potential carriers for therapeutic payloads. However, achieving triggered drug release from MSNPs in vivo has been challenging. Here, we ...

  11. atlas first-level trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  12. atlas high-level trigger: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  13. atlas high-level triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  14. auxin-induced ethylene triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  15. agents stress-resistance triggers: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  16. alpha-synuclein triggers microglial: Topics by E-print Network

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

    to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the...

  17. Integrated simulation of ELM Triggered by Pellet Through Energy Absorption and Transport Enhancement

    E-Print Network [OSTI]

    Integrated simulation of ELM Triggered by Pellet Through Energy Absorption and Transport Enhancement

  18. Integrated Simulation of ELM Triggered by Pellet through Energy Absorption and Transport Enhancement

    E-Print Network [OSTI]

    Integrated Simulation of ELM Triggered by Pellet through Energy Absorption and Transport Enhancement

  19. TESTING TRIGGERED STAR FORMATION IN SIX H II REGIONS

    SciTech Connect (OSTI)

    Dirienzo, William J.; Indebetouw, Remy [Department of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903 (United States); Brogan, Crystal; Friesen, Rachel K. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Cyganowski, Claudia J. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Churchwell, Ed, E-mail: dirienzo@virginia.edu [Department of Astronomy, University of Wisconsin-Madison, 475 N Charter Street, Madison, WI 53706 (United States)

    2012-12-01T23:59:59.000Z

    We investigated six H II regions with infrared, bright rimmed bubble or cometary morphology, in search of quantitative evidence for triggered star formation, both collect and collapse and radiatively driven implosion (RDI). We identified and classified 458 young stellar objects (YSOs) in and around the H II regions. YSOs were determined by fitting a collection of radiative transfer model spectral energy distributions to infrared photometry for a large sample of point sources. We determined areas where there exist enhanced populations of relatively unevolved YSOs on the bright rims of these regions, suggesting that star formation has been triggered there. We further investigated the physical properties of the regions by using radio continuum emission as a proxy for ionizing flux powering the H II regions, and {sup 13}CO (1-0) observations to measure masses and gravitational stability of molecular clumps. We used an analytical model of collect and collapse triggered star formation, as well as a simulation of RDI, and thus we compare the observed properties of the molecular gas with those predicted in the triggering scenarios. Notably, those regions in our sample that show evidence of cometary, or 'blister', morphology are more likely to show evidence of triggering.

  20. Active Financial Assistance Letters | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergyDepartment ofATVM LoanActive Financial Assistance Letters Active

  1. Enforcement Letter, Wise Services, LLC - July 10, 2014 | Department...

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

    related to a track hoe operated by a Wise Services employee that struck a fiber optics line at DOE's Portsmouth Gaseous Diffusion Plant. Enforcement Letter issued to Wise...

  2. Letter from Plumbing Manufacturers Institute to Department of...

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

    Letter from Plumbing Manufacturers Institute to Department of Energy re: Ex Parte Communication More Documents & Publications Supplemental Comments of the Plumbing Manufacturers...

  3. Letter from Commonwealth to Mirant Potomac River Concerning Serious...

    Energy Savers [EERE]

    to Mirant Potomac River Concerning Serious Violations of the National Ambient Air Quality Standards for Sulfur Dioxide Letter from Commonwealth to Mirant Potomac River Concerning...

  4. Letter from Pepco Holdings Regarding the Reliability of Electric...

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

    from Pepco Holdings Regarding the Reliability of Electric Service in the District of Columbia Letter from Pepco Holdings Regarding the Reliability of Electric Service in the...

  5. Policy Flash 2015-14 Acquisition Letter 2015-03/Financial Acquisition...

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

    Subject to Energy and Water Development and Related Agencies Appropriations Act, 201 Policy Flash 2015-14 Acquisition Letter 2015-03Financial Acquisition Letter 2015-02...

  6. Post-Closure Inspection Letter Report for Corrective Action Units on the Nevada National Security Site

    SciTech Connect (OSTI)

    Boehlecke, Robert F.

    2013-05-28T23:59:59.000Z

    This letter serves as the post-closure inspection letter report for corrective action units on the Nevada Naational Security Site for calendar year 2012.

  7. Policy Flash 2013-64 Acquisition Letter 10 and Class Deviation...

    Energy Savers [EERE]

    4 Acquisition Letter 10 and Class Deviation for Nondisplacement of Qualified Workers Policy Flash 2013-64 Acquisition Letter 10 and Class Deviation for Nondisplacement of Qualified...

  8. A semiconductor source of triggered entangled photon pairs?

    E-Print Network [OSTI]

    A. Gilchrist; K. J. Resch; A. G. White

    2006-08-08T23:59:59.000Z

    The realisation of a triggered entangled photon source will be of great importance in quantum information, including for quantum key distribution and quantum computation. We show here that: 1) the source reported in ``A semiconductor source of triggered entangled photon pairs''[1. Stevenson et al., Nature 439, 179 (2006)]} is not entangled; 2) the entanglement indicators used in Ref. 1 are inappropriate, relying on assumptions invalidated by their own data; and 3) even after simulating subtraction of the significant quantity of background noise, their source has insignificant entanglement.

  9. Final report on LDRD project : advanced optical trigger systems.

    SciTech Connect (OSTI)

    Roose, Lars D.; Hadley, G. Ronald; Mar, Alan; Serkland, Darwin Keith; Geib, Kent Martin; Sullivan, Charles Thomas; Keeler, Gordon Arthur; Bauer, Thomas M. (LMATA Government Services, LLC., Albuquerque, NM); Peake, Gregory Merwin; Loubriel, Guillermo Manuel; Montano, Victoria A. (LMATA Government Services, LLC., Albuquerque, NM)

    2008-09-01T23:59:59.000Z

    Advanced optically-activated solid-state electrical switch development at Sandia has demonstrated multi-kA/kV switching and the path for scalability to even higher current/power. Realization of this potential requires development of new optical sources/switches based on key Sandia photonic device technologies: vertical-cavity surface-emitting lasers (VCSELs) and photoconductive semiconductor switch (PCSS) devices. The key to increasing the switching capacity of PCSS devices to 5kV/5kA and higher is to distribute the current in multiple parallel line filaments triggered by an array of high-brightness line-shaped illuminators. Commercial mechanically-stacked edge-emitting lasers have been used to trigger multiple filaments, but they are difficult to scale and manufacture with the required uniformity. In VCSEL arrays, adjacent lasers utilize identical semiconductor material and are lithographically patterned to the required dimensions. We have demonstrated multiple-line filament triggering using VCSEL arrays to approximate line generation. These arrays of uncoupled circular-aperture VCSELs have fill factors ranging from 2% to 30%. Using these arrays, we have developed a better understanding of the illumination requirements for stable triggering of multiple-filament PCSS devices. Photoconductive semiconductor switch (PCSS) devices offer advantages of high voltage operation (multi-kV), optical isolation, triggering with laser pulses that cannot occur accidentally in nature, low cost, high speed, small size, and radiation hardness. PCSS devices are candidates for an assortment of potential applications that require multi-kA switching of current. The key to increasing the switching capacity of PCSS devices to 5kV/5kA and higher is to distribute the current in multiple parallel line filaments triggered by an array of high-brightness line-shaped illuminators. Commercial mechanically-stacked edge-emitting lasers have been demonstrated to trigger multiple filaments, but they are difficult to scale and manufacture with the required uniformity. As a promising alternative to multiple discrete edge-emitting lasers, a single wafer of vertical-cavity surface-emitting lasers (VCSELs) can be lithographically patterned to achieve the desired layout of parallel line-shaped emitters, in which adjacent lasers utilize identical semiconductor material and thereby achieve a degree of intrinsic optical uniformity. Under this LDRD project, we have fabricated arrays of uncoupled circular-aperture VCSELs to approximate a line-shaped illumination pattern, achieving optical fill factors ranging from 2% to 30%. We have applied these VCSEL arrays to demonstrate single and dual parallel line-filament triggering of PCSS devices. Moreover, we have developed a better understanding of the illumination requirements for stable triggering of multiple-filament PCSS devices using VCSEL arrays. We have found that reliable triggering of multiple filaments requires matching of the turn-on time of adjacent VCSEL line-shaped-arrays to within approximately 1 ns. Additionally, we discovered that reliable triggering of PCSS devices at low voltages requires more optical power than we obtained with our first generation of VCSEL arrays. A second generation of higher-power VCSEL arrays was designed and fabricated at the end of this LDRD project, and testing with PCSS devices is currently underway (as of September 2008).

  10. Performance of the online track reconstruction and impact on hadronic triggers at the CMS High Level Trigger

    E-Print Network [OSTI]

    Valentina Gori

    2014-09-09T23:59:59.000Z

    The trigger systems of the LHC detectors play a crucial role in determining the physics capabilities of the experiments. A reduction of several orders of magnitude of the event rate is needed to reach values compatible with the detector readout, offline storage and analysis capabilities. The CMS experiment has been designed with a two-level trigger system: the Level 1 (L1) Trigger, implemented on custom-designed electronics, and the High Level Trigger (HLT), a streamlined version of the CMS reconstruction and analysis software running on a computer farm. The software-base HLT requires a trade-off between the complexity of the algorithms, the sustainable output rate, and the selection efficiency. This is going to be even more challenging during Run II, with a higher centre-of-mass energy, a higher instantaneous luminosity and pileup, and the impact of out-of-time pileup due to the 25 ns bunch spacing. The online algorithms need to be optimised for such a complex environment in order to keep the output rate under control without impacting the physics efficiency of the online selection. Tracking, for instance, will play an even more important role in the event reconstruction. In this poster we will present the performance of the online track and vertex reconstruction algorithms, and their impact on the hadronic triggers that make use of b-tagging and of jets reconstructed with the Particle Flow technique. We will show the impact of these triggers on physics performance of the experiment, and the latest plans for improvements in view of the Run II data taking in 2015.

  11. BALKAN PHYSICS LETTERS c Bogazici University Press 27 October 2008

    E-Print Network [OSTI]

    Gagnon, Pauline

    BALKAN PHYSICS LETTERS c Bogazici University Press 27 October 2008 BPL, X (X), pp. X - X (2008? In Turkey, like elsewhere in the Balkans, there is a higher proportion of women physicists than in other, ATLAS collaborators must have contributed to the ex- #12;2 BALKAN PHYSICS LETTERS periment for at least

  12. Writing Mentor Letters Greg Siegle, Ph.D.

    E-Print Network [OSTI]

    Siegle, Greg J.

    Writing Mentor Letters Greg Siegle, Ph.D. 9/24/2014 You may be asked to draft letters about you from your mentor. Think of this as an opportunity and not a shirked responsibility. This is your mentor of your mentors' belief in you. Hints: Do not be modest ­ your mentors should know you, be enthusiastic

  13. Date [Rev 10/99] Name [MODEL LETTER OF INTENT

    E-Print Network [OSTI]

    Baker, Chris I.

    Date [Rev 10/99] Name [MODEL LETTER OF INTENT] Title Company Name Address Reference: Proposed CRADA CRADA Dear _____________________: Per our discussions, this Letter of Intent confirms our understanding and Development Agreement (CRADA) by the CRADA Subcommittee and approval by the Director, National Institute

  14. Does Pet Arrival Trigger Prosocial Behaviors in Individuals with Autism?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Does Pet Arrival Trigger Prosocial Behaviors in Individuals with Autism? Marine Grandgeorge1 between the presence or the arrival of pets in families with an individual with autism and the changes of pets - two groups of 12 individuals and two groups of 8 individuals were assigned to: study 1 (pet

  15. Cooperative Nanoparticles for Tumor Detection and Photothermally Triggered Drug Delivery

    E-Print Network [OSTI]

    Bhatia, Sangeeta

    Cooperative Nanoparticles for Tumor Detection and Photothermally Triggered Drug Delivery By Ji nanoparticles and drug molecules can be co- encapsulated in liposomes to simultaneously perform multiple and luminescent porous silicon nanoparticles to overcome such problems,[5,6] although these more complicated

  16. Virtual MISO Triggers in Wi-Fi-like Networks

    E-Print Network [OSTI]

    Virtual MISO Triggers in Wi-Fi-like Networks Oscar Bejarano Edward W. Knightly 1 Thursday, April 11 difficult to achieve in mobile devices Thursday, April 11, 2013 #12;5 Virtual MISO (vMISO) TX RX vMISO, 2013 #12;1. System Model 1.1. Distributed System 1.2. Single-Antenna Nodes 6 vMISO

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

    E-Print Network [OSTI]

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

    2015-05-28T23:59:59.000Z

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

  18. CDF/DOC/TRIGGER/CDFR/3145 Version 2.0

    E-Print Network [OSTI]

    and trigger systems in the CDF Run II upgrade. It involves a bunch counter to time stamp the data which bit board header word. The header word will be specified below. Once the system is setup and running which have a different value will be an indication of loss of synchronization. During commissioning

  19. Implementation and Performance of the ATLAS Second Level Jet Trigger

    E-Print Network [OSTI]

    Conde-Muíño, P; Brelier, B; Cranmer, K; Delsart, P A; Dufour, M A; Eckweiler, S; Ferland, J; Idarraga, J; Johns, K; LeCompte, T; Potter, C; Robertson, S; Santamarina-Rios, C; Segura, E; Silverstein, D; Vachon, B; International Conference on Computing in High Energy and Nuclear Physics

    2008-01-01T23:59:59.000Z

    ATLAS is one of the four major LHC experiments, designed to cover a wide range of physics topics. In order to cope with a rate of 40 MHz and 25 interactions per bunch crossing, the ATLAS trigger system is divided in three different levels. The first one (LVL1, hardware based) identifies signatures in 2 microseconds that are confirmed by the the following trigger levels (software based). The Second Level Trigger (LVL2) only looks at a region of the space around the LVL1 signature (called Region of Interest or ROI), confirming/rejecting the event in about 10 ms, while the Event Filter (Third Level Trigger, EF) has potential full event access and larger processing times, of the order of 1 s. The jet selection starts at the LVL1 with dedicated processors that search for high ET hadronic energy depositions. At the LVL2, the jet signatures are verified with the execution of a dedicated, fast jet reconstruction algorithm. Given the fact that the main jet's background are jets,the energy calibration at the LVL2 is on...

  20. Adding Decision Procedures to SMT Solvers using Axioms with Triggers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Adding Decision Procedures to SMT Solvers using Axioms with Triggers Claire Dross Sylvain Conchon Johannes Kanig Andrei Paskevich December 9, 2013 Abstract SMT solvers are efficient tools to decide of a given SMT solver, and is done mainly by the developers of the solver itself. For many useful theories

  1. Robot Studies on SaccadeTriggered Visual Prediction

    E-Print Network [OSTI]

    Moeller, Ralf

    Robot Studies on Saccade­Triggered Visual Prediction Wolfram Schenck Computer Engineering Group@ti.uni-bielefeld.de April 12, 2012 Abstract Three robot studies on visual prediction are presented. In all of them, a vi- sual forward model is used, which predicts the visual consequences of saccade­ like camera movements

  2. A Fast hardware Tracker for the ATLAS Trigger system

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. After a very successful data taking run the LHC is expected to run starting in 2015 with much higher instantaneous luminosities and this will increase the load on the High Level Trigger system. More sophisticated algorithms will be needed to achieve higher background rejection while maintaining good efficiency for interesting physics signals, which requires a more extensive use of tracking information. The Fast Tracker (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform full-scan track-finding at the event rate of 100 kHz. FTK is a dedicated processor based on a mixture of advanced technologies. Modern, powerful, Field Programmable Gate Arrays form an important part of the system architecture, and the combinatorial problem of pattern r...

  3. A Fast hardware tracker for the ATLAS Trigger

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. To achieve high background rejection while maintaining good efficiency for interesting physics signals, sophisticated algorithms are needed which require extensive use of tracking information. The Fast TracKer (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform track-finding at 100 kHz and based on a mixture of advanced technologies. Modern, powerful Field Programmable Gate Arrays (FPGA) form an important part of the system architecture, and the combinatorial problem of pattern recognition is solved by ~8000 standard-cell ASICs named Associative Memories. The availability of the tracking and subsequent vertex information within a short latency ensures robust selections and allows improved trigger performance for the most difficult sign...

  4. Letter report to Pete Sanders, DOE:

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7111AWell:F E ,"^ I 1'DataS11973TextLetter

  5. LETTER TEMPLATE TO PROJECTS ON HOLD

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

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

  6. Acquisition Letters Archives | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA Newsletters 20103-03 AUDITProducts &Acquisition LetterAcquisition

  7. Letter report: Cold crucible melter assessment

    SciTech Connect (OSTI)

    Elliott, M.L.

    1996-03-01T23:59:59.000Z

    One of the activities of the PNL Vitrification Technology Development (PVTD) Project is to assist the Tank Waste Remediation Systems (TWRS) Program in determining which melter systems should be performance tested for potential implementation in the high-level waste (HLW) vitrification plant. The Richland Operations Office (RL) has recommended that the Cold Crucible Melter (CCM) be evaluated as a candidate ``next generation`` melter. As a result, the CCM System Evaluation cost account was established under the PVTD Project so that the CCM could be initially assessed on a high-priority basis. This letter report summarizes a brief initial review and assessment of the CCM. Using the recommendations made in this document, Westinghouse Hanford Company (WHC) and RL will make a decision regarding the urgency of performance testing the CCM. If the decision is favorable, a subcontract will be negotiated for performance testing of a CCM using Hanford HLW simulants in a pilot-scale facility. Because of the aggressive nature of the schedule, the CCM evaluation was not rigorous. The evaluation consisted of a literature review and interviews with proponents of the technology during a recent trip to France. This letter report summarizes the evaluation and makes recommendations regarding further work in this area.

  8. The cover letter, also known as the letter of application, is uniformly requested in academic job postings and is an important document. You should spend ample time writing and proofreading targeted letters for each job. As with

    E-Print Network [OSTI]

    Kaminsky, Werner

    The cover letter, also known as the letter of application, is uniformly requested in academic job letters for each job. As with all of your materials, have a faculty member in your department look over for a position that is not a direct match with your previous experiences. o The job description does not request

  9. The cover letter, also known as the letter of application, is uniformly requested in academic job postings and is an important document. You should spend ample time writing and proofreading targeted letters for each job. As with

    E-Print Network [OSTI]

    Manchak, John

    The cover letter, also known as the letter of application, is uniformly requested in academic job letters for each job. As with all of your materials, have a faculty member in your department look over are applying for a position that is not a direct match with your previous experiences. o The job description

  10. Dependence of Ridge Formation on Trigger Azimuth: Correlated Emission Model

    E-Print Network [OSTI]

    Charles B. Chiu; Rudolph C. Hwa

    2009-01-05T23:59:59.000Z

    Ridge formation in near-side correlation in heavy-ion collisions is studied in the framework of a phenomenological model, called Correlated Emission Model (CEM). Successive soft emissions due to jet-medium interaction lead to the enhancement of thermal partons which follow the local flow directions. The correlation between the flow direction and the semihard parton direction is the major factor that causes the ridge formation to depend on the trigger direction relative to the reaction plane. With the use of a few parameters we have been able to reproduce the data on the ridge yields as functions of the trigger azimuthal angle for different centralities. An inside-outside asymmetry function is proposed to further probe the characteristics of the azimuthal correlation function. Insights are provided for the understanding of some detailed aspects of the centrality dependence.

  11. Evaluation of Light-Triggered Thyristors for Pulsed Power Applications

    SciTech Connect (OSTI)

    Tully, L K; Fulkerson, E S; Goerz, D A; Speer, R D

    2008-05-20T23:59:59.000Z

    Lawrence Livermore National Laboratory has many needs for high reliability, high peak current, high di/dt switches. Solid-state switch technology offers the demonstrated advantage of reliability under a variety of conditions. Light-triggered switches operate with a reduced susceptibility to electromagnetic interference commonly found within pulsed power environments. Despite the advantages, commercially available solid-state switches are not typically designed for the often extreme pulsed power requirements. Testing was performed to bound the limits of devices for pulsed power applications beyond the manufacturers specified ratings. To test the applicability of recent commercial light-triggered solid-state designs, an adjustable high current switch test stand was assembled. Results from testing and subsequent selected implementations are presented.

  12. Triggering and data acquisition for the Hyper-Kamiokande experiment

    E-Print Network [OSTI]

    Dewhurst, Debra

    2015-01-01T23:59:59.000Z

    Hyper-Kamiokande has been proposed as a next generation neutrino oscillation experiment capable of observing accelerator, atmospheric, solar and astrophysical neutrinos, as well as possible proton decays, providing a rich scientific program. One of the main goals is the study of CP violation in the lepton sector. The Hyper-Kamiokande detector will be an underground water Cherenkov detector with a fiducial mass of 0.56 million metric tons, approximately 25 times larger than that of Super-Kamiokande. With such a large fiducial mass, the Hyper-Kamiokande detector will need a robust trigger and data acquisition system (DAQ) to be sensitive to the physics events of interest. Several UK institutions are participating in the development of the trigger and DAQ. Here we present some of the on going studies from the UK DAQ group.

  13. Fast quantum dot single photon source triggered at telecommunications wavelength

    E-Print Network [OSTI]

    Kelley Rivoire; Sonia Buckley; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

    2010-12-20T23:59:59.000Z

    We demonstrate a quantum dot single photon source at 900 nm triggered at 300 MHz by a continuous wave telecommunications wavelength laser followed by an electro-optic modulator. The quantum dot is excited by on-chip-generated second harmonic radiation, resonantly enhanced by a GaAs photonic crystal cavity surrounding the InAs quantum dot. Our result suggests a path toward the realization of telecommunications-wavelength-compatible quantum dot single photon sources with speeds exceeding 1 GHz.

  14. ATLAS Jet Trigger Update for the LHC Run II

    E-Print Network [OSTI]

    Tavares Delgado, Ademar; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    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...

  15. Triggered Star Formation in the Environment of Young Massive Stars

    E-Print Network [OSTI]

    M. Gritschneder; T. Naab; F. Heitsch; A. Burkert

    2006-09-26T23:59:59.000Z

    Recent observations with the Spitzer Space Telescope show clear evidence that star formation takes place in the surrounding of young massive O-type stars, which are shaping their environment due to their powerful radiation and stellar winds. In this work we investigate the effect of ionising radiation of massive stars on the ambient interstellar medium (ISM): In particular we want to examine whether the UV-radiation of O-type stars can lead to the observed pillar-like structures and can trigger star formation. We developed a new implementation, based on a parallel Smooth Particle Hydrodynamics code (called IVINE), that allows an efficient treatment of the effect of ionising radiation from massive stars on their turbulent gaseous environment. Here we present first results at very high resolution. We show that ionising radiation can trigger the collapse of an otherwise stable molecular cloud. The arising structures resemble observed structures (e.g. the pillars of creation in the Eagle Nebula (M16) or the Horsehead Nebula B33). Including the effect of gravitation we find small regions that can be identified as formation places of individual stars. We conclude that ionising radiation from massive stars alone can trigger substantial star formation in molecular clouds.

  16. Late Pleistocene earthquake-triggered moraine dam failure and outburst of Lake Zurich, Switzerland

    E-Print Network [OSTI]

    Gilli, Adrian

    Late Pleistocene earthquake-triggered moraine dam failure and outburst of Lake Zurich, Switzerland of $20,600 m3 sÀ1 . We also discuss long-term causes and short-term trigger mechanisms of the dam failure of Lake Zurich was initiated as a consequence of the moraine dam failure that either was triggered

  17. MICHIGANSTATEUNIVERSITYTheGraduateSchool CoverLettersPhDCareerServices

    E-Print Network [OSTI]

    are apply- ing to; conveying interest in the position and why you are interested. Essentials: Why you think for written credentials http://www.csp.msu.edu/resources-tools/index.html Resume/Cover Letters (Stanford

  18. LETTER TO A LAW STUDENT INTERESTED IN SOCIAL JUSTICE

    E-Print Network [OSTI]

    Zhou, Pei

    LETTER TO A LAW STUDENT INTERESTED IN SOCIAL JUSTICE WILLIAM P. QUIGLEY* Dear Bridgette: I am. For further reading on this topic, see William P. Quigley, Revolution- ary Lawyering: Addressing the Root

  19. Year in Review Letter from the President 2

    E-Print Network [OSTI]

    Year in Review 2010 #12;#12;Contents Letter from the President 2 Open for Business 4 Community one filled with success and promise for Old Dominion University. As you'll see in this Year in Review

  20. Letter from the Wind Program Director: May 2014 | Department...

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

    May 2014 Letter from the Wind Program Director: May 2014 March 28, 2014 - 4:52pm Addthis The spring edition of the Wind Program Newsletter comes at quite a busy and exciting time...

  1. Microsoft Word - letter announcing draft contract_attachment...

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

    19 th Letter to the Region Summary of Changes BPA has Made in the Draft Contract in Response to the Public Comment Process on the Alcoa Term Sheet BPA published a term sheet...

  2. The ATLAS Tau Trigger Performance during LHC Run 1 and Prospects for Run 2

    E-Print Network [OSTI]

    Yuki Sakurai

    2014-09-09T23:59:59.000Z

    Triggering on hadronic tau decays is essential for a wide variety of analyses of interesting physics processes at ATLAS. The ATLAS tau trigger combines information from the tracking detectors and calorimeters to identify the signature of hadronically decaying tau leptons. In Run 2 operation expected to start in 2015, the trigger strategies will become more important than ever before. In this paper, the tau trigger performance during Run 1 is summarized and also an overview of the developments of Run 2 tau trigger strategy is presented.

  3. High voltage switch triggered by a laser-photocathode subsystem

    DOE Patents [OSTI]

    Chen, Ping; Lundquist, Martin L.; Yu, David U. L.

    2013-01-08T23:59:59.000Z

    A spark gap switch for controlling the output of a high voltage pulse from a high voltage source, for example, a capacitor bank or a pulse forming network, to an external load such as a high gradient electron gun, laser, pulsed power accelerator or wide band radar. The combination of a UV laser and a high vacuum quartz cell, in which a photocathode and an anode are installed, is utilized as triggering devices to switch the spark gap from a non-conducting state to a conducting state with low delay and low jitter.

  4. The NA62 Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger

    E-Print Network [OSTI]

    V. Bonaiuto; A. Fucci; G. Paoluzzi; A. Salamon; G. Salina; E. Santovetti; F. Sargeni; F. M. Scarfi'

    2012-01-16T23:59:59.000Z

    The NA62 experiment at CERN SPS aims to measure the Branching Ratio of the very rare kaon decay K+ -> pi+ nu nubar collecting O(100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ -> pi+ pi0 decay. To suppress this background an efficient photo veto system is foreseen. In the 1-10 mrad angular region the NA48 high performance liquid krypton electromagnetic calorimeter is used. The design, implementation and current status of the Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger are presented.

  5. The NA62 Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger

    E-Print Network [OSTI]

    Vincenzo Bonaiuto; Adolfo Fucci; Giovanni Paoluzzi; Andrea Salamon; Gaetano Salina; Emanuele Santovetti; Fausto Sargeni; Francesco M. Scarfi'

    2012-01-18T23:59:59.000Z

    The NA62 experiment at CERN SPS aims to measure the Branching Ratio of the very rare kaon decay K+ -> pi+ nu nubar collecting O(100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ -> pi+ pi0 decay. To suppress this background an efficient photo veto system is foreseen. In the 1-10 mrad angular region the NA48 high performance liquid krypton electromagnetic calorimeter is used. The design, implementation and current status of the Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger are presented.

  6. High-Power Microwave Switch Employing Electron Beam Triggering

    SciTech Connect (OSTI)

    Jay L. Hirshfield

    2012-09-19T23:59:59.000Z

    A high-power active microwave pulse compressor is described that modulates the quality factor Q of the energy storage cavity by a new means involving mode conversion controlled by a triggered electron-beam discharge through a switch cavity. The electron beam is emitted from a diamond-coated molybdenum cathode. This report describes the principle of operation, the design of the switch, the configuration used for the test, and the experimental results. The pulse compressor produced output pulses with 140 - Ã?Â?165 MW peak power, power gain of 16 - 20, and pulse duration of 16 - 20 ns at a frequency of 11.43 GHz.

  7. Inertial confinement fusion based on the ion-bubble trigger

    SciTech Connect (OSTI)

    Jafari, S., E-mail: SJafari@guilan.ac.ir; Nilkar, M.; Ghasemizad, A. [Department of Physics, University of Guilan, Rasht 41335-1914 (Iran, Islamic Republic of); Mehdian, H. [Department of Physics and Institute for Plasma Research, Tarbiat Moallem University, Tehran 15614 (Iran, Islamic Republic of)

    2014-10-15T23:59:59.000Z

    Triggering the ion-bubble in an inertial confinement fusion, we have developed a novel scheme for the fast ignition. This scheme relies on the plasma cavitation by the wake of an intense laser pulse to generate an ion-bubble. The bubble acts both as an intense electron accelerator and as an electron wiggler. Consequently, the accelerated electrons trapped in the bubble can emit an intense tunable laser light. This light can be absorbed by an ablation layer on the outside surface of the ignition capsule, which subsequently drills it and thereby produces a guide channel in the pellet. Finally, the relativistic electron beam created in the bubble is guided through the channel to the high density core igniting the fusion fuel. The normalized beam intensity and beam energy required for triggering the ignition have been calculated when core is heated by the e-beam. In addition, through solving the momentum transfer, continuity and wave equations, a dispersion relation for the electromagnetic and space-charge waves has been analytically derived. The variations of growth rate with the ion-bubble density and electron beam energy have been illustrated. It is found that the growth rates of instability are significantly controlled by the ions concentration and the e-beam energy in the bubble.

  8. High energy physics experiment triggers and the trustworthiness of software

    SciTech Connect (OSTI)

    Nash, T.

    1991-10-01T23:59:59.000Z

    For all the time and frustration that high energy physicists expend interacting with computers, it is surprising that more attention is not paid to the critical role computers play in the science. With large, expensive colliding beam experiments now dependent on complex programs working at startup, questions of reliability -- the trustworthiness of software -- need to be addressed. This issue is most acute in triggers, used to select data to record -- and data to discard -- in the real time environment of an experiment. High level triggers are built on codes that now exceed 2 million source lines -- and for the first time experiments are truly dependent on them. This dependency will increase at the accelerators planned for the new millennium (SSC and LHC), where cost and other pressures will reduce tolerance for first run problems, and the high luminosities will make this on-line data selection essential. A sense of this incipient crisis motivated the unusual juxtaposition to topics in these lectures. 37 refs., 1 fig.

  9. Design of the Trigger Interface and Distribution Board for CEBAF 12 GeV Upgrade

    SciTech Connect (OSTI)

    Gu, Jianhui; Dong, Hai; Cuevas, R; Gyurjyan, Vardan; Heyes, William; Jastrzembski, Edward; Kaneta, Scott; Nganga, Nicholas; Moffit, Bryan; Raydo, Benjamin; Timmer, Carl

    2012-10-01T23:59:59.000Z

    The design of the Trigger Interface and Distribution (TID) board for the 12 GeV Upgrade at the Continuous Electron Beam Accelerator Facility (CEBAF) at TJNAL is described. The TID board distributes a low jitter system clock, synchronized trigger, and synchronized multi-purpose SYNC signal. The TID also initiates data acquisition for the crate. With the TID boards, a multi-crate system can be setup for experiment test and commissioning. The TID board can be selectively populated as a Trigger Interface (TI) board, or a Trigger Distribution (TD) board for the 12 GeV upgrade experiments. When the TID is populated as a TI, it can be located in the VXS crate and distribute the CLOCK/TRIGGER/SYNC through the VXS P0 connector; it can also be located in the standard VME64 crate, and distribute the CLOCK/TRIGGER/SYNC through the VME P2 connector or front panel. It initiates the data acquisition for the front crate where the TI is positioned in. When the TID is populated as a TD, it fans out the CLOCK/TRIGGER/SYNC from trigger supervisor to the front end crates through optical fibres. The TD monitors the trigger processing on the TIs, and gives feedback to the TS for trigger flow control. Field Programmable Gate Arrays (FPGA) is utilised on TID board to provide programmability. The TID boards were intensively tested on the bench, and various setups.

  10. Policy Flash 2013-62 Acquisition Letter 09 - Revision of Department...

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

    Letter 09 - Revision of Department of Energy (DOE) Order 350.1 and Special H Clause Policy Flash 2013-62 Acquisition Letter 09 - Revision of Department of Energy (DOE) Order...

  11. June 11, 2010 12:24 WSPC/INSTRUCTION FILE PPL Parallel Processing Letters

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    June 11, 2010 12:24 WSPC/INSTRUCTION FILE PPL Parallel Processing Letters c World Scientific Processing Letters 20, 4 (2010) 307-324" #12;June 11, 2010 12:24 WSPC/INSTRUCTION FILE PPL 2 Parallel

  12. Response by PJM to letters from the City of Alexandria and the...

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

    of Alexandria (the "City") have filed letters asserting an imminent breach of the Order. PJM responds to those letters and takes issue both (i) with the assertion of an imminent...

  13. Policy Flash 2014-08 ACQUISITION LETTER 2014-02: PROVISIONAL...

    Energy Savers [EERE]

    08 ACQUISITION LETTER 2014-02: PROVISIONAL PAYMENT OF FEE Policy Flash 2014-08 ACQUISITION LETTER 2014-02: PROVISIONAL PAYMENT OF FEE Questions concerning this policy flash should...

  14. Letter to Chairman Darrell Issa from Eric Fygi, Deputy General Counsel-- July 24, 2013

    Broader source: Energy.gov [DOE]

    On July 24, 2013, Energy Department Deputy General Counsel Eric Fygi sent this letter to Chairman Darrell Issa.

  15. Secretary Chu Letter to 2nd US-China EE Forum

    Office of Energy Efficiency and Renewable Energy (EERE)

    English and Chinese translation of Secretary Chu's letter to participants in the 2nd US-China EE Forum.

  16. 31 January 1997 Chemical Physics Letters 265 (1997) 121-128

    E-Print Network [OSTI]

    Zare, Richard N.

    ELSEVIER 31 January 1997 Chemical Physics Letters 265 (1997) 121-128 CHEMICAL PHYSICS LETTERS for interpretation of our measurements 0009-2614/97/$17.00 Copyright © 1997 Elsevier Science B.V. All rights reserved. PH S0009-261 4(96)0 1421 -2 #12;122 S.A. Kandel et al./ Chemical Physics Letters 265 (1997) 121

  17. Last update: September 2014 www.utsc.utoronto.ca/aacc The Cover Letter

    E-Print Network [OSTI]

    Boonstra, Rudy

    , laptop, tablet or smart phone There is no standard way of writing a cover letter or resume See our cover/her consideration of your application. State the best method of contacting you (home phone, cell phone and/or email) Cover Letter Basics Marketing Yourself Resumes, cover letters, LinkedIn, and interview skills are your

  18. Superconducting FCL using a combined inducted magnetic field trigger and shunt coil

    DOE Patents [OSTI]

    Tekletsadik, Kasegn D. (Rexford, NY)

    2007-10-16T23:59:59.000Z

    A single trigger/shunt coil is utilized for combined induced magnetic field triggering and shunt impedance. The single coil connected in parallel with the high temperature superconducting element, is designed to generate a circulating current in the parallel circuit during normal operation to aid triggering the high temperature superconducting element to quench in the event of a fault. The circulating current is generated by an induced voltage in the coil, when the system current flows through the high temperature superconducting element.

  19. PID Performance in the LHCb High Level Trigger

    E-Print Network [OSTI]

    Benson, S

    2014-01-01T23:59:59.000Z

    The LHCb High Level Trigger (HLT) incorporates RICH particle identification (PID) calculations that are designed to be faster than those used for the offline reconstruction, which is necessary due to the timing constraints imposed on the HLT. The performance of this faster calculation has been evaluated using $B^+ \\to \\overline{D}^0\\pi^+$ events recorded during 2011 data taking and compared against the performance of the offline calculation. The time taken to calculate PID information in the HLT has been measured both for the configuration used in Run 1, and for configurations approaching that used offline. Similar overall efficiency and misidentification performance is seen in the configurations used offline and in the HLT, though the raw values of PID variables can differ substantially for a given candidate.

  20. The Fueling and Evolution of AGN: Internal and External Triggers

    E-Print Network [OSTI]

    Shardha Jogee

    2008-07-10T23:59:59.000Z

    In this chapter, I review the fueling and evolution of active galactic nuclei (AGN) under the influence of internal and external triggers, namely intrinsic properties of host galaxies (morphological or Hubble type, color, presence of bars and other non-axisymmetric features, etc) and external factors such as environment and interactions. The most daunting challenge in fueling AGN is arguably the angular momentum problem as even matter located at a radius of a few hundred pc must lose more than 99.99 % of its specific angular momentum before it is fit for consumption by a BH. I review mass accretion rates, angular momentum requirements, the effectiveness of different fueling mechanisms, and the growth and mass density of black BHs at different epochs. I discuss connections between the nuclear and larger-scale properties of AGN, both locally and at intermediate redshifts, outlining some recent results from the GEMS and GOODS HST surveys.

  1. Very low pressure high power impulse triggered magnetron sputtering

    DOE Patents [OSTI]

    Anders, Andre; Andersson, Joakim

    2013-10-29T23:59:59.000Z

    A method and apparatus are described for very low pressure high powered magnetron sputtering of a coating onto a substrate. By the method of this invention, both substrate and coating target material are placed into an evacuable chamber, and the chamber pumped to vacuum. Thereafter a series of high impulse voltage pulses are applied to the target. Nearly simultaneously with each pulse, in one embodiment, a small cathodic arc source of the same material as the target is pulsed, triggering a plasma plume proximate to the surface of the target to thereby initiate the magnetron sputtering process. In another embodiment the plasma plume is generated using a pulsed laser aimed to strike an ablation target material positioned near the magnetron target surface.

  2. Triggers and maintenance of multiple shifts in the state of a natural community

    E-Print Network [OSTI]

    Rassweiler, Andrew; Schmitt, Russell J.; Holbrook, Sally J.

    2010-01-01T23:59:59.000Z

    PAPER Triggers and maintenance of multiple shifts in theseparately on the causes and maintenance of state change canpotentially explaining the maintenance of the new state.

  3. Stereotype Threat in Organizations: An Examination of its Scope, Triggers, and Possible Interventions

    E-Print Network [OSTI]

    Kray, Laura J.; Shirako, Aiwa

    2009-01-01T23:59:59.000Z

    and social identity threat. Advances in Experimental Socialmen triggers social identity threat among female engineers.C. (2007). Stereotype threat at work. Academy of Management

  4. Superconducting matrix fault current limiter with current-driven trigger mechanism

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY)

    2008-04-15T23:59:59.000Z

    A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. An inductor is connected in series with the trigger superconductor in the trigger matrix and physically surrounds the superconductor. The current surge during a fault will generate a trigger magnetic field in the series inductor to cause fast and uniform quenching of the trigger superconductor to significantly reduce burnout risk due to superconductor material non-uniformity.

  5. Investigation Letter Report: I11IG002 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report: I11IG002 Investigation Letter Report: I11IG002

  6. Letter to Congress RE: Office of Civilian Radioactive Waste Management's

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

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

  7. Letter to EECBG Recipients on Changes to Reporting Requirements |

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

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

  8. Letter to SEP Recipients on Changes to Reporting Requirements | Department

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

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

  9. Acquisition letter No. AL 2015-05 | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'s Reply Comments AT&T, SENSI NOT27 Acquisition Letter No.letter No. AL

  10. Event-triggered control with LQ optimality guarantees for saturated linear systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Event-triggered control with LQ optimality guarantees for saturated linear systems A. Seuret , C of the domain of attraction. Keywords: event-based control, input saturation, linear quadratic performance 1 with event-triggered control algorithms for linear systems subject to plant input saturation. Hence, given

  11. Distributed Optimization, Estimation, and Control of Networked Systems through Event-triggered Message Passing

    E-Print Network [OSTI]

    Lemmon, Michael

    -triggered Message Passing 1 Introduction This project will investigate distributed optimization, estimation, and control of networked systems through the use of event-triggered message passing. Networked systems consist of distributed decision systems. Indi- vidual agents coordinate their actions through message exchanges

  12. Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays

    E-Print Network [OSTI]

    Dudek, Piotr

    Trigger-Wave Propagation in Arbitrary Metrics in Asynchronous Cellular Logic Arrays Przemyslaw image processing tasks using trigger-wave propagation in a medium with a hardware-controlled metric. The principles of wave propagation in cellular four-connected logic arrays emulating different distance measure

  13. Neurocomputing 69 (2006) 10621065 Dependence of the spike-triggered average voltage on

    E-Print Network [OSTI]

    Gerstner, Wulfram

    2006-01-01T23:59:59.000Z

    .V. All rights reserved. Keywords: Spike-triggered voltage; h-current; Damped voltage oscillations 1 oscillations. The model comprises a variable v for the membrane voltage, with time-scale tv and a secondNeurocomputing 69 (2006) 1062­1065 Dependence of the spike-triggered average voltage on membrane

  14. Shape memory poly(3-caprolactone)-co-poly(ethylene glycol) foams with body temperature triggering and

    E-Print Network [OSTI]

    Mather, Patrick T.

    Shape memory poly(3-caprolactone)-co-poly(ethylene glycol) foams with body temperature triggering the fabrication of porous foams with shape memory triggering at body temperature. Employing a modified porogen are crosslinked via thiol­ene chemistry to generate highly porous foam scaffolds with shape memory capacity

  15. Cite this: RSC Advances, 2013, 3, Water-triggered shape memory of multiblock

    E-Print Network [OSTI]

    Mather, Patrick T.

    Cite this: RSC Advances, 2013, 3, 15783 Water-triggered shape memory of multiblock thermoplastic of a water-triggered shape memory polymer (SMP) family, PCL­PEG based thermoplastic polyurethanes (TPUs and recovery ratios were substantially improved using this new shape memory programming method, the mechanism

  16. Design, characterization, and sensitivity of the supernova trigger system at Daya Bay

    E-Print Network [OSTI]

    Wei, Hanyu; Li, Fei; Wang, Zhe; Chen, Shaomin

    2015-01-01T23:59:59.000Z

    Providing an early warning of galactic supernova explosions from neutrino signals is important in studying supernova dynamics and neutrino physics. A dedicated supernova trigger system has been designed and installed in the data acquisition system at Daya Bay and integrated into the worldwide Supernova Early Warning System (SNEWS). Daya Bay's unique feature of eight identically-designed detectors deployed in three separate experimental halls makes the trigger system naturally robust against cosmogenic backgrounds, enabling a prompt analysis of online triggers and a tight control of the false-alert rate. The trigger system is estimated to be fully sensitive to 1987A-type supernova bursts throughout most of the Milky Way. The significant gain in sensitivity of the eight-detector configuration over a mass-equivalent single detector is also estimated. The experience of this online trigger system is applicable to future projects with spatially distributed detectors.

  17. Design, characterization, and sensitivity of the supernova trigger system at Daya Bay

    E-Print Network [OSTI]

    Hanyu Wei; Logan Lebanowski; Fei Li; Zhe Wang; Shaomin Chen

    2015-05-11T23:59:59.000Z

    Providing an early warning of galactic supernova explosions from neutrino signals is important in studying supernova dynamics and neutrino physics. A dedicated supernova trigger system has been designed and installed in the data acquisition system at Daya Bay and integrated into the worldwide Supernova Early Warning System (SNEWS). Daya Bay's unique feature of eight identically-designed detectors deployed in three separate experimental halls makes the trigger system naturally robust against cosmogenic backgrounds, enabling a prompt analysis of online triggers and a tight control of the false-alert rate. The trigger system is estimated to be fully sensitive to 1987A-type supernova bursts throughout most of the Milky Way. The significant gain in sensitivity of the eight-detector configuration over a mass-equivalent single detector is also estimated. The experience of this online trigger system is applicable to future projects with spatially distributed detectors.

  18. 5 June 1998 Z .Chemical Physics Letters 289 1998 189192

    E-Print Network [OSTI]

    Wang, Zhong L.

    5 June 1998 Z .Chemical Physics Letters 289 1998 189­192 Graphitic hollow carbon calabashes Z and are constructed by graphitic carbon shells of thicknesses ;10 nm. The calabash can be hollow or filled, fullerene molecule C60 w x w xand its family 1 , carbon nano-tubes 2 , and carbon w xonion 3 has excited

  19. Inside this report 1...........................Letter from the Co-Directors

    E-Print Network [OSTI]

    Wong, Pak Kin

    change mitigation, Tree rin Valley Fever, Dengue Fever, West Nile Virus, Urban heat island, Green Letter from the Co-Directors Co-Director, Institute of the Environment Phone: (520) 626-2910 liverman@email.arizona of the Environment (IE) at the University of Arizona was established two years ago to help expand and communicate our

  20. Team NewsleTTer A Letter to Our Spon-

    E-Print Network [OSTI]

    Stuart, Steven J.

    Team NewsleTTer Volume 17 Issue 5 A Letter to Our Spon- sors and Supporters42 FSAE Michigan at their first trip to FSAE Lin- coln. A hard effort from a small team paid off in Nebraska with the first event win in team histo- ry. Read the whole recap from each competition in this issue. Competition Recap

  1. Surface Science Letters Scanning tunneling microscopy study of the anatase

    E-Print Network [OSTI]

    Diebold, Ulrike

    ; Surface structure, morphology, roughness, and topography; Low index single crystal surfaces The structureSurface Science Letters Scanning tunneling microscopy study of the anatase (1 0 0) surface NancyO2 anatase (1 0 0) surface. Natural single crystals of anatase were employed; and after several

  2. A LETTERS JOURNAL EXPLORING THE FRONTIERS OF PHYSICS

    E-Print Network [OSTI]

    Iglesias, José Roberto

    A LETTERS JOURNAL EXPLORING THE FRONTIERS OF PHYSICS OFFPRINT Coexistence of ferromagnetism in some uranium compounds, is studied in the framework of an underscreened Kondo lattice model within of another class of heavy-fermion systems, uranium compounds, whose behavior is quite different from cerium

  3. A LETTERS JOURNAL EXPLORING THE FRONTIERS OF PHYSICS

    E-Print Network [OSTI]

    Wiese, Kay Jörg

    ;Europhysics Letters (EPL) has a new online home at www.epljournal.org Take a look for the latest journal news at the level of secondary structures due to a clear separation of energy scales. Since the pioneering work to probe RNA chains is to study its behavior under an external pulling force (see fig. 1a

  4. CALL FOR PAPERS: IEEE Embedded Systems Letters Special Issue on

    E-Print Network [OSTI]

    Cheng, Albert M. K.

    manipulation of nano-structures, and space exploration. Since all these embedded systems interact directlyCALL FOR PAPERS: IEEE Embedded Systems Letters Special Issue on Rigorous Modeling and Analysis-critical monitoring and control applications. These embedded systems run real-time applications which must satisfy

  5. News Letter Institute of Advanced Energy, Kyoto University

    E-Print Network [OSTI]

    Takada, Shoji

    . Abstract definition of energy consists of two parts: Energy = Exergy +Anergy Exergy is a part of energyNews Letter Institute of Advanced Energy, Kyoto University ISSN 1342-3193 IAE-NL-2014 No.54 http -- 2,709 2013 2013 Institute of Advanced Energy, Kyoto University #12; 25 25 11 20

  6. Letter-position encoding and dyslexia Carol Whitney

    E-Print Network [OSTI]

    Cornelissen, Piers

    Letter-position encoding and dyslexia Carol Whitney University of Maryland, USA Piers Cornelissen to dyslexia. The model is extended to include a phonological route and reading acquisition. We propose and colleagues (1974), research into dyslexia has focused on phonological deficits. As discussed by Castles

  7. 22 May 1998 Z .Chemical Physics Letters 288 1998 487493

    E-Print Network [OSTI]

    Reisler, Hanna

    22 May 1998 Z .Chemical Physics Letters 288 1998 487­493 z 3 /Endoergic reactions of hyperthermal C P with methane and acetylene M.R. Scholefield, J.-H. Choi 1 , S. Goyal 2 , H. Reisler Department probing the CH product via laser induced fluores- Z . w xcence LIF 4 . Based on theoretical investigations

  8. 19 September 1997 Z .Chemical Physics Letters 276 1997 269273

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    19 September 1997 Z .Chemical Physics Letters 276 1997 269­273 On the threshold behavior in laser 8 April 1997; in final form 17 June 1997 Abstract The microscopic mechanisms of the fluence that determine the dynamics of laser ablation. q 1997 Elsevier Science B.V. The interaction of laser pulses

  9. 24 October 1997 Z .Chemical Physics Letters 278 1997 2630

    E-Print Network [OSTI]

    Nizkorodov, Sergey

    24 October 1997 Z .Chemical Physics Letters 278 1997 26­30 Infrared predissociation spectra of He, Klingelbergstrasse 80, CH-4056 Basel, Switzerland¨ ¨ Received 16 July 1997 Abstract Z . q q Infrared spectra of the n cmy1 allow for an estimation of the unknown n frequency of the HOq monomer as1 2 3020"40 cmy1 . q 1997

  10. 18 July 1997 Z .Chemical Physics Letters 273 1997 199204

    E-Print Network [OSTI]

    Nguyen, Minh Tho

    18 July 1997 Z .Chemical Physics Letters 273 1997 199­204 qP ~ 2 z /On the geometry and inversion, Celestijnenlaan 200F, B-3001 Leu�en, Belgium Received 19 May 1997 Abstract qP Z Z .Geometries of PF , PF 1997 Elsevier Science B.V. 1. Introduction The inversion of tricoordinated compounds con- Z .taining

  11. Issues in Building General Letter to Sound Rules 

    E-Print Network [OSTI]

    Black, Alan W; Lenzo, Kevin; Pagel, Vincent

    for building letter to sound (LTS) rules from a word list in a language. The technique can be fully automatic, though a small amount of hand seeding can give better results. We have applied this technique to English (UK and US), French and German. The generated...

  12. letters to nature 70 NATURE |VOL 390 |6 NOVEMBER 1997

    E-Print Network [OSTI]

    Laurent, Gilles

    letters to nature 70 NATURE |VOL 390 |6 NOVEMBER 1997 Received 11 June; accepted 11 August 1997. 1 and energy cost of flight in the white-necked raven, Corvus cryptoleucus. J. Exp. Biol. 103, 121­130 (1983, W. & Nachtigall, W. Pigeon flight in a wind tunnel. II. Gas exchange and power requirements. J. Comp

  13. Letter-of-Offer Attachment Work Authorization Documentation --I-9

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Letter-of-Offer Attachment Work Authorization Documentation -- I-9 This offer of employment is contingent upon verification of the appropriate identity and employment eligibility documentation on the Form and the list of acceptable documents, please see the Forms section of the U.S. Citizenship and Immigration

  14. SAMPLE COVER LETTER FOR AN UNADVERTISED INTERNSHIP (If you don't have a position description to tailor your letter)

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    SAMPLE COVER LETTER FOR AN UNADVERTISED INTERNSHIP (If you don't have a position description in _____________. I am seeking a ____________________ or ____________________ internship for summer, fall, spring year are impressed with the organization Statements communicating your enthusiasm for the internship opportunity

  15. Letter of Interest or Prospecting Letter You may find that you are sincerely interested in a particular organization, but they have no jobs currently

    E-Print Network [OSTI]

    Omiecinski, Curtis

    . 1. State why you are interested in working for that organization. 2. Demonstrate the skills you year at Penn State, my interest in working for an organization that shares my passion has become34 Letter of Interest or Prospecting Letter You may find that you are sincerely interested

  16. Recommendation letters are extraordinarily important during the academic job search process. You should start thinking about who your letter writers will be well in advance of application deadlines.

    E-Print Network [OSTI]

    Manchak, John

    Recommendation letters are extraordinarily important during the academic job search process. You first-hand knowledge of your skills ­ they've seen you teach, co-authored articles with you, worked academic department if you want the letters to have maximum impact. HELPING YOUR REFERENCES Start Early

  17. A versatile digital camera trigger for telescopes in the Cherenkov Telescope Array

    E-Print Network [OSTI]

    Schwanke, U; Sulanke, K -H; Vorobiov, S; Wischnewski, R

    2015-01-01T23:59:59.000Z

    This paper describes the concept of an FPGA-based digital camera trigger for imaging atmospheric Cherenkov telescopes, developed for the future Cherenkov Telescope Array (CTA). The proposed camera trigger is designed to select images initiated by the Cherenkov emission of extended air showers from very-high energy (VHE, E>20 GeV) photons and charged particles while suppressing signatures from background light. The trigger comprises three stages. A first stage employs programmable discriminators to digitize the signals arriving from the camera channels (pixels). At the second stage, a grid of low-cost FPGAs is used to process the digitized signals for camera regions with 37 pixels. At the third stage, trigger conditions found independently in any of the overlapping 37-pixel regions are combined into a global camera trigger by few central FPGAs. Trigger prototype boards based on Xilinx FPGAs have been designed, built and tested and were shown to function properly. Using these components a full camera trigger wi...

  18. Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics

    SciTech Connect (OSTI)

    Aad, G.; Abat, E.; Abbott, B.; Abdallah, J.; Abdelalim, A.A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Acharya, Bobby Samir; Adams, D.L.; Addy, T.N.; Adorisio, C.; Adragna, P.; Adye, T.; Aguilar-Saavedra, J.A.; Aharrouche, M.; Ahlen, S.P.; Ahles, F.; Ahmad, A.; /SUNY, Albany /Alberta U. /Ankara U. /Annecy, LAPP /Argonne /Arizona U. /Texas U., Arlington /Athens U. /Natl. Tech. U., Athens /Baku, Inst. Phys. /Barcelona, IFAE /Belgrade U. /VINCA Inst. Nucl. Sci., Belgrade /Bergen U. /LBL, Berkeley /Humboldt U., Berlin /Bern U., LHEP /Birmingham U. /Bogazici U. /INFN, Bologna /Bologna U.

    2011-11-28T23:59:59.000Z

    The Large Hadron Collider (LHC) at CERN promises a major step forward in the understanding of the fundamental nature of matter. The ATLAS experiment is a general-purpose detector for the LHC, whose design was guided by the need to accommodate the wide spectrum of possible physics signatures. The major remit of the ATLAS experiment is the exploration of the TeV mass scale where groundbreaking discoveries are expected. In the focus are the investigation of the electroweak symmetry breaking and linked to this the search for the Higgs boson as well as the search for Physics beyond the Standard Model. In this report a detailed examination of the expected performance of the ATLAS detector is provided, with a major aim being to investigate the experimental sensitivity to a wide range of measurements and potential observations of new physical processes. An earlier summary of the expected capabilities of ATLAS was compiled in 1999 [1]. A survey of physics capabilities of the CMS detector was published in [2]. The design of the ATLAS detector has now been finalised, and its construction and installation have been completed [3]. An extensive test-beam programme was undertaken. Furthermore, the simulation and reconstruction software code and frameworks have been completely rewritten. Revisions incorporated reflect improved detector modelling as well as major technical changes to the software technology. Greatly improved understanding of calibration and alignment techniques, and their practical impact on performance, is now in place. The studies reported here are based on full simulations of the ATLAS detector response. A variety of event generators were employed. The simulation and reconstruction of these large event samples thus provided an important operational test of the new ATLAS software system. In addition, the processing was distributed world-wide over the ATLAS Grid facilities and hence provided an important test of the ATLAS computing system - this is the origin of the expression 'CSC studies' ('computing system commissioning'), which is occasionally referred to in these volumes. The work reported does generally assume that the detector is fully operational, and in this sense represents an idealised detector: establishing the best performance of the ATLAS detector with LHC proton-proton collisions is a challenging task for the future. The results summarised here therefore represent the best estimate of ATLAS capabilities before real operational experience of the full detector with beam. Unless otherwise stated, simulations also do not include the effect of additional interactions in the same or other bunch-crossings, and the effect of neutron background is neglected. Thus simulations correspond to the low-luminosity performance of the ATLAS detector. This report is broadly divided into two parts: firstly the performance for identification of physics objects is examined in detail, followed by a detailed assessment of the performance of the trigger system. This part is subdivided into chapters surveying the capabilities for charged particle tracking, each of electron/photon, muon and tau identification, jet and missing transverse energy reconstruction, b-tagging algorithms and performance, and finally the trigger system performance. In each chapter of the report, there is a further subdivision into shorter notes describing different aspects studied. The second major subdivision of the report addresses physics measurement capabilities, and new physics search sensitivities. Individual chapters in this part discuss ATLAS physics capabilities in Standard Model QCD and electroweak processes, in the top quark sector, in b-physics, in searches for Higgs bosons, supersymmetry searches, and finally searches for other new particles predicted in more exotic models.

  19. Large ELMs Triggered by MHD in JET Advanced Tokamak Plasmas: Impact on Plasmas Profiles, Plasmas Facing Components and Heating Systems

    E-Print Network [OSTI]

    Large ELMs Triggered by MHD in JET Advanced Tokamak Plasmas: Impact on Plasmas Profiles, Plasmas Facing Components and Heating Systems

  20. The trigger system of the Pierre Auger Surface Detector: operation, efficiency and stablility

    SciTech Connect (OSTI)

    Allard, D.; Armengaud, E.; Allekotte, I.; Allison, P.; Aublin, J.; Ave, M.; Bauleo, P.; Beatty, J.; Beau, T.; Bertou, Xavier; Billoir, P.; Bonifazi, C.; Chou, A.; Chye,; Dagoret-Campagne, S.; Dorofeev, A.; Ghia, P.L.; Gomez Berisso, M.; Gorgi, A.; Hamilton, J.C.; Harton, J.

    2005-08-01T23:59:59.000Z

    The trigger system of the Surface Detector (SD) of the Pierre Auger Observatory is described, from the identification of candidate showers (E > 1 EeV) at the level of a single station, among a huge background (mainly single muons), up to the selection of real events and the rejection of random coincidences at a higher central trigger level (including the reconstruction accuracy). Efficiency of a single station trigger is evaluated using real data, and the high performance of event selection hierarchy will be demonstrated.

  1. Using neural networks as an event trigger in elementary particle physics experiments

    SciTech Connect (OSTI)

    Neis, E.; Starr, F.W.; Handler, T. [Tennessee Univ., Knoxville, TN (United States). Dept. of Physics; Gabriel, T.; Glover, C.; Saini, S. [Oak Ridge National Lab., TN (United States)

    1994-02-01T23:59:59.000Z

    Elementary particle physics experiments often have to deal with high data rates. In order to avoid having to write out all data that is occurring online processors, triggers, are used to cull out the uninteresting data. These triggers are based on some particular aspect of the physics being examined. At times these aspects are often equivalent to simple pattern recognition problems. The reliability of artificial neural networks(ANNs) in pattern recognition problems in many fields has been well demonstrated. We present here the results of a study on the feasibility of using ANNs as an online trigger for high energy physics experiments.

  2. L0 Trigger for the EMCal Detector of the ALICE Experiment

    SciTech Connect (OSTI)

    Kral, Jiri [University of Jyvaskyla, Finland; Awes, Terry C [ORNL; Muller, Hans [CERN, Geneva, Switzerland; Rak, Jan [University of Jyvaskyla, Finland; Schambach, Joachim [University of Texas, Austin

    2012-01-01T23:59:59.000Z

    The ALICE experiment at the CERN Large Hadron Collider (LHC) accelerator was designed to study ultra-relativistic heavy-ion collisions. The ALICE Electromagnetic Calorimeter (EMCal) was built to provide measurement of photons, electrons, and jets, and trigger selection of hard-QCD events containing them. The EMCal single-shower L0 trigger, which triggers on large energy deposit within a 4 x 4 tower sliding window, became operational in 2010. The implementation of the real-time FPGA based algorithm optimized to provide a fast L0 decision is presented.

  3. A calendar and transcription of selected letters by Elmer Blaney Harris: 1902-1905

    E-Print Network [OSTI]

    Bowie, Charles Caldwell

    1989-01-01T23:59:59.000Z

    similarly numbered letters. And when the numbers assigned to the letter and the envelope do not match, I have recorded the number of the envelope in parentheses immediately after the des- ignation ENV. In such cases, I have allowed the number... with the abbreviation ENV. In the course of creating this calendar, I have been able to match some of the letters with separately numbered, emp- ty envelopes with similar dates. Like the mismatched correspondence mentioned above, however, the numbers...

  4. Letter report: Evaluation of dryer/calciner technologies for testing

    SciTech Connect (OSTI)

    Sevigny, G.

    1996-02-01T23:59:59.000Z

    This letter report describes some past experiences on the drying and calcination of radioactive materials or corresponding simulants; and the information needed from testing. The report also includes an assessment of informational needs including possible impacts to a full-scale plant. This includes reliability, maintenance, and overall size versus throughput. Much of the material was previously compiled and reported by Mike Elliott of PNL {open_quotes}Melter Performance Assessment{close_quotes} and Larry Eisenstatt of SEG on contract to WHC in a letter to Rod Powell. Also, an annotated bibliography was prepared by Reagan Seymour of WHC. Descriptions of the drying and calciner technologies, development status, advantages and disadvantages of using a WFE or calciner, and recommendations for future testing are discussed in this report.

  5. Flow through porous media : from mixing of fluids to triggering of earthquakes

    E-Print Network [OSTI]

    Jha, Birendra, Ph. D. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering

    2014-01-01T23:59:59.000Z

    Enhanced oil recovery by displacing oil with solvents such as carbon dioxide requires development of miscibility between the two fluids to maximize the displacement efficiency. Prevention of inadvertent triggering of ...

  6. Nitric OxideTriggered Remodeling of Chloroplast Bioenergetics and Thylakoid Proteins upon Nitrogen

    E-Print Network [OSTI]

    Nitric Oxide­Triggered Remodeling of Chloroplast Bioenergetics and Thylakoid Proteins upon Nitrogen droplets, but the accompanying changes in bioenergetics have been little studied so far. Here, we report

  7. Using automatically-triggered cameras to monitor and estimate bobcat abundance

    E-Print Network [OSTI]

    Heilbrun, Richard David

    2002-01-01T23:59:59.000Z

    triggered cameras as part of a mark-recapture study design. I tested the assumptions that bobcats were individually identifiable by their natural markings and that information obtained from camera surveys can contribute to abundance estimates from mark...

  8. Electrically Triggered Release of a Small Molecule Drug from a Polyelectrolyte Multilayer Coating

    E-Print Network [OSTI]

    Schmidt, Daniel J.

    Electrically triggered drug delivery represents an attractive option for actively and remotely controlling the release of a therapeutic from an implantable device (e.g., a “pharmacy-on-a-chip”). Here we report the fabrication ...

  9. EXPECTED TRIGGER RATES OF HIGH PT JETS AND DIRECT PHOTONS IN THE STAR EMC.

    SciTech Connect (OSTI)

    BELT-TONJES,M. FOR THE STAR COLLABORATION

    1999-03-21T23:59:59.000Z

    The STAR experiment at RHIC is a large acceptance detector. The electromagnetic calorimeter (EMC) will provide a sensitive trigger to study high p{sub t} jets and hard photons in AuAu, pp, and pAu collisions. The capability for the EMC to trigger on jets and direct photons was studied for trigger level 0. Trigger efficiencies and expected process rates were obtained for pp reactions. Results from pp interactions will be essential to the interpretation of AuAu results as well as for the spin physics program. These studies were performed with the standard STAR software chain which includes GEANT and EMC simulations. The HIJING event generator was used to provide input for the simulations.

  10. DOE Qualified List of ESCO Application Cover Letter

    Broader source: Energy.gov [DOE]

    Document displays the U.S. Department of Energy's (DOE) application cover letter, which thanks a firm for its interest in the DOE Qualified List of Energy Service Companies (ESCOs) and describes the application documents and application review process. Firms on the DOE Qualified List may perform energy savings performance contracting (ESPC) in accordance with the Energy Policy Act of 1992 and 10 CFR 436. Also see the Standard Form 129 and Supplemental Questionnaire.

  11. Resource Letter: Dark Energy and the Accelerating Universe

    E-Print Network [OSTI]

    Eric V. Linder

    2007-05-28T23:59:59.000Z

    This Resource Letter provides a guide to the literature on dark energy and the accelerating universe. It is intended to be of use to researchers, teachers, and students at several levels. Journal articles, books, and websites are cited for the following topics: Einstein's cosmological constant, quintessence or dynamical scalar fields, modified cosmic gravity, relations to high energy physics, cosmological probes and observations, terrestrial probes, calculational tools and parameter estimation, teaching strategies and educational resources, and the fate of the universe.

  12. Enforcement Letter, Westinghouse Waste Isolation Division - October 3, 2000

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter,

  13. POLICY FLASH 2014-17 Revised Acquisition Letter 2013-11- Non...

    Energy Savers [EERE]

    Contractor Business Systems Clauses for Section H - Earned Value Management Clause POLICY FLASH 2014-17 Revised Acquisition Letter 2013-11- Non-Management and Operating...

  14. Letter from the Department of Energy to the District of Columbia...

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

    agencies, is examining this matter expeditiously to determine the facts necessary to render an appropriate decision. Letter from the Department of Energy to the District of...

  15. Letters of Interest PRICE/COST Estimate Sheet for [Insert LOI...

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

    (Typed Name) NREL Form (10-5-2000) Letters of Interest PRICECOST Estimate Sheet for Description Base Year Phase Option Year I Phase Option Year II...

  16. Analysis of the Evaluative Components on the Standard Letter of Recommendation (SLOR) in Emergency Medicine

    E-Print Network [OSTI]

    Grall, Kristi; Hiller, Katherine; Stoneking, Lisa

    2014-01-01T23:59:59.000Z

    Letter of Recommendation in Emergency Medicine? J Emerg Med.Western Journal of Emergency Medicineapplicants to emergency medicine residency programs. J Emerg

  17. LETTER Communicated by Valerie Ventura Information-Geometric Measures as Robust Estimators

    E-Print Network [OSTI]

    Fellous, Jean-Marc

    LETTER Communicated by Valerie Ventura Information-Geometric Measures as Robust Estimators¨un, & Iyengar, 2005; Kass, Ventura, & Brown, 2005; Tatsuno, Lipa, & McNaughton, 2006; Shimazaki & Shinomoto

  18. Optically triggered high voltage switch network and method for switching a high voltage

    DOE Patents [OSTI]

    El-Sharkawi, Mohamed A. (Renton, WA); Andexler, George (Everett, WA); Silberkleit, Lee I. (Mountlake Terrace, WA)

    1993-01-19T23:59:59.000Z

    An optically triggered solid state switch and method for switching a high voltage electrical current. A plurality of solid state switches (350) are connected in series for controlling electrical current flow between a compensation capacitor (112) and ground in a reactive power compensator (50, 50') that monitors the voltage and current flowing through each of three distribution lines (52a, 52b and 52c), which are supplying three-phase power to one or more inductive loads. An optical transmitter (100) controlled by the reactive power compensation system produces light pulses that are conveyed over optical fibers (102) to a switch driver (110') that includes a plurality of series connected optical triger circuits (288). Each of the optical trigger circuits controls a pair of the solid state switches and includes a plurality of series connected resistors (294, 326, 330, and 334) that equalize or balance the potential across the plurality of trigger circuits. The trigger circuits are connected to one of the distribution lines through a trigger capacitor (340). In each switch driver, the light signals activate a phototransistor (300) so that an electrical current flows from one of the energy reservoir capacitors through a pulse transformer (306) in the trigger circuit, producing gate signals that turn on the pair of serially connected solid state switches (350).

  19. Kinetic simulation studies of laser-triggering in the Z gas switch

    SciTech Connect (OSTI)

    Welch, D. R.; Rose, D. V.; Thoma, C.; Clark, R. E.; Miller, C.; Madrid, E. A.; Zimmerman, W. R. [Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States)] [Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States); Rambo, P. K.; Schwarz, J.; Savage, M.; Atherton, B. W. [Sandia National Laboratories, Albuquerque, New Mexico 87185-1196 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185-1196 (United States)

    2013-08-15T23:59:59.000Z

    Advanced z-pinch accelerators require precise timing of multiple mega-ampere drivers to deliver terawatt power. The triggering of these drivers is now largely initiated by laser ionization of gas switches. In this paper, we discuss detailed fully kinetic simulation of the Z laser-triggered gas switch involving detailed finite-difference time-domain particle-in-cell Monte Carlo modeling of the trigger section of the switch. Other components of the accelerator from the Marx bank through the pulse-forming line are described as circuit elements. The simulations presented here build on a recently developed model of electro-negative gas breakdown and streamer propagation that included photons produced from de-excited neutrals. New effects include multi-photon ionization of the gas in a prescribed laser field. The simulations show the sensitivity of triggering to laser parameters including focal plane within the anode-cathode gap of the trigger section of the switch, intensity at focus, and laser pulse length. Detailed electromagnetic simulations of the trigger section with circuit modeling of the upstream and downstream components are largely in agreement with Z data and demonstrate a new capability.

  20. In utramque partem tum Graece tum Latine: Code-Switching and Cultured Identity in Cicero's Letters to Atticus

    E-Print Network [OSTI]

    Jackson, Jamie

    2014-05-31T23:59:59.000Z

    In this thesis I investigate the linguistic phenomenon of code-switching between Latin and Greek in the letters of Cicero to his friend Atticus. I do this by surveying the individual instances of Greek in the letters to ...

  1. E.Majorana as a Guide in Quirino Majorana's Experiments. Original Letters and Documents on an Experimental and Theoretical Collaboration

    E-Print Network [OSTI]

    Dragoni, G

    2006-01-01T23:59:59.000Z

    E.Majorana as a Guide in Quirino Majorana's Experiments. Original Letters and Documents on an Experimental and Theoretical Collaboration

  2. ISAB 2001-3 Hatchery Surplus Letter -Page 1 Independent Scientific Advisory Board

    E-Print Network [OSTI]

    ISAB 2001-3 Hatchery Surplus Letter - Page 1 Independent Scientific Advisory Board Portland, Oregon 97204 ISAB@nwppc.org April 16, 2001 Dr. Usha Varanasi Science Director Northwest Fisheries Surplus Review Dear Dr. Varanasi: This letter is the ISAB's response to your January 29, 2001 request

  3. Ecology Letters, (2003) 6: 13-18 Are three-dimensional spider webs defensive

    E-Print Network [OSTI]

    Mathis, Wayne N.

    2003-01-01T23:59:59.000Z

    LETTER Ecology Letters, (2003) 6: 13-18 Are three-dimensional spider webs defensive adaptations? Abstract Spider webs result from complex behaviours that have evolved under many selective pressures. Webs risk in the evolution of web architecture. The ecological success of spiders has been attributed to key

  4. Earth and Planetary Science Letters 403 (2014) 5666 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Spiga, Aymeric

    2014-01-01T23:59:59.000Z

    Earth and Planetary Science Letters 403 (2014) 56­66 Contents lists available at ScienceDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl Sedimentation waves on the Martian between the ice sheet sur- face and the atmosphe

  5. in press Earth and Planetary Science Letters 1 FULL LENGTH ARTICLE1

    E-Print Network [OSTI]

    in press Earth and Planetary Science Letters 1 FULL LENGTH ARTICLE1 2 3 4 5 6 7 Mechanisms pincelli.hull@yale.edu46 #12;in press Earth and Planetary Science Letters 2 Abstract47 The interpretation shape, the correspondence in mixing extent61 between iridium and microfossils, and the fit of sediment

  6. ChemicalPhysicsLetters270 (1997) 476-483 Electrostatics by Brownian dynamics

    E-Print Network [OSTI]

    Agmon, Noam

    ELSEVIER 30May 1997 ChemicalPhysicsLetters270 (1997) 476-483 CHEMICAL PHYSICS LETTERS, Jerusalem 91904, Israel Received26 December1996;in finalform31 March1997 Abstract The isomorphism between is demonstrated in simple illustrative calculations. © 1997 Elsevier Science B.V. 1. Introduction Electrostatic

  7. 21 June 1997 ELSEVIER Chemical Physics Letters 272 (1997) 178-182

    E-Print Network [OSTI]

    Wang, Zhong L.

    21 June 1997 CHEWCAL PHYSICS LETTERS ELSEVIER Chemical Physics Letters 272 (1997) 178-182 Well of Technology, Atlanta, GA 30332.0245, USA Received 22 April 1997 Abstract Well-aligned graphitic nanofibers microscopy and transmission electron microscopy. 0 1997 Published by Elsevier Science B.V. - 1. Introduction

  8. 20 October 1997 Physics Letters A 235 (1997) 35-40

    E-Print Network [OSTI]

    Qiao, Zhijun "George" - Department of Mathematics, University of Texas

    20 October 1997 Physics Letters A 235 (1997) 35-40 PHYSICS LETTERS A Discrete and continuousDepartment of Mathematics, Xuzhou Normal University, Xuzhou 221009, China Received 31 January 1997; revised manuscript received 16 June 1997; accepted for publication 25 June 1997 Communicated by A.R. Bishop Abstract We

  9. 3 October 1997 Chemical Physics Letters 277 (1997) 1-5

    E-Print Network [OSTI]

    Zare, Richard N.

    ELSEVIER 3 October 1997 Chemical Physics Letters 277 (1997) 1-5 CHEMIOAL PHYSIG$ LETTERS Rate., Hanscom AFB, MA 01731-3010, USA Received 19 May 1997; in final form 24 July 1997 Abstract The proton+ by HBr and DBr neutrals. © 1997 Elsevier Science B.V. 1. Introduction Previously, we have investigated

  10. 1 September 1997 Physics Letters A 233 (1997) 265-273

    E-Print Network [OSTI]

    Vilela Mendes, Rui

    ELSBVIER 1 September 1997 Physics Letters A 233 (1997) 265-273 PHYSICS LETTERS A Collision states, Universidade de Lisboa, Av. Gama Pinto, 2, 1699 Lisbon Codex, Portugal Received 21 February 1997; revised manuscript received 1July 1997; accepted for publication 2 July 1997 Communicated by RR. Holland Abstract

  11. ELSEVIER Physics Letters A 231 (1997) 97-108 30June 1997

    E-Print Network [OSTI]

    Lukyanov, Alex

    ELSEVIER Physics Letters A 231 (1997) 97-108 30June 1997 PHYSICS LETTERS A Parametric decay 21 March 1997;accepted for publication 8 April 1997 Communicated by V.M. Agranovich Abstract and third decay modes are established. 0 1997 Published by Elsevier Science B.V. 1. Introduction One

  12. 17October 1997 ChemicalPhysicsLetters277 (1997)571-578

    E-Print Network [OSTI]

    Powles, Rebecca

    ELSEVIER 17October 1997 ChemicalPhysicsLetters277 (1997)571-578 CHEMICAL PHYSICS LETTERS High School of Physics, The Uniuersi~ of Melbourne, Parkville VIC 3052, Australia Received 17April 1997;in final form11August 1997 Abstract When examined under a high-resolution transmission electron microscope

  13. 14February 1997 CHEMICAL ELSEVIER Chemical PhysicsLetters265 (1997) 667-672

    E-Print Network [OSTI]

    14February 1997 CHEMICAL PHYSICS LETTERS ELSEVIER Chemical PhysicsLetters265 (1997) 667-672 Field by a covalent bond. @ 1997 Published by Elsevier Science B.V. Carbon nanotubes [ 1-4] have recently been estab-freegraphiticstructure,sincetheydo not disintegrateunderthe experimentalconditionsof Ref. [5]. 0009-2614/97/$17.00 Copyright(~) 1997 Publishedby Elsevier

  14. IEEE COMMUNICATIONS LETTERS, VOL. 2, NO. 4, APRIL 1998 107 Combined Turbo Equalization and Turbo Decoding

    E-Print Network [OSTI]

    Raphaeli, Dan

    IEEE COMMUNICATIONS LETTERS, VOL. 2, NO. 4, APRIL 1998 107 Combined Turbo Equalization and Turbo Decoding Dan Raphaeli, Member, IEEE, and Yoram Zarai Abstract-- In this letter, the subject of turbo coding will be presented, which combines the channel equalization and the turbo decoding. At each iteration extrinsic

  15. Earth and Planetary Science Letters 387 (2014) 252263 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Gilli, Adrian

    and rare earth elements, in combination with grain size distribution data, from a set of core-top sedimentsEarth and Planetary Science Letters 387 (2014) 252­263 Contents lists available at ScienceDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl Eolian dust input to the Subarctic

  16. LETTER TEMPLATE TO PROJECTS ON HOLD | Department of Energy

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

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

  17. Lawrence Livermore National Security Enforcement Letter (NEL-2013-03)

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

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

  18. Letter Report on Metallurgical Examination of the High Fluence RPV

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

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

  19. Letter Report: INS-L-09-01

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PMDepartment ofs o u tWasi-lington, DC 20585 M E

  20. Letter Report: IO1OP001 | Department of Energy

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

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

  1. Letter Response from the Plumbing Manufacturers Institute (PMI), Docket No.

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

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

  2. Letter from Commonwealth of Virginia to ENSR International Detailing

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

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

  3. Letter from Commonwealth to Mirant Potomac River Concerning Serious

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

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

  4. Senator Dingell Letter to Secretary Bodman | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle|Security Enforcement|DepartmentSenator Dingell Letter

  5. Acquisition Letter No. AL 2014-07 | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'s Reply Comments AT&T, SENSI NOT27 Acquisition Letter No. AL 2014-07

  6. Acquisition Letter No. AL 2015-07 | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'s Reply Comments AT&T, SENSI NOT27 Acquisition Letter No. AL

  7. Audit Letter Report: OAS-L-10-02

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName Affiliation Ahern,5 Audit Letter

  8. Enforcement Letter, Washington TRU Solutions - September 8, 2006 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 - November 27,

  9. Enforcement Letter, Webcor Builders - February 12, 2015 | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 - November

  10. Enforcement Letter, West Valley Nuclear Services - March 30, 1998 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 - NovemberDepartment

  11. Enforcement Letter, Westinghouse Hanford Corporation - July 6, 1995 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 -

  12. Enforcement Letter, Westinghouse Hanford Corporation - September 22, 1995 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 -Department of

  13. Enforcement Letter, Westinghouse Savannah River Company - April 15, 1997 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04 -Department

  14. Enforcement Letter, Westinghouse Savannah River Company - April 19, 2004 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04

  15. Enforcement Letter, Westinghouse Savannah River Company - July 21, 1998 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04Department of

  16. Enforcement Letter, Westinghouse Savannah River Company - June 4, 1996 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04Department

  17. Enforcement Letter, Westinghouse Savannah River Company - March 29, 2000 |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04DepartmentDepartment

  18. Enforcement Letter, Westinghouse Savannah River Company - November 14, 2003

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVACEnforcement Letter, WEL-2013-04DepartmentDepartment|

  19. Letter of Direction to Contractor | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12Approvedof6, 1945:LauraPlains & Eastern20585ServiceLetter

  20. Letter: Congratulating Oak Ridge SSAB and its Stewardship Committee for

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12Approvedof6, 1945:LauraPlains &Letter.pdf

  1. Letter: Direction and Guidance for Implementing Direct DOE Relationship &

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12Approvedof6, 1945:LauraPlains &Letter.pdfFunding for

  2. Letter: Implementation of the Guidance for the Environmental Management

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12Approvedof6, 1945:LauraPlains &Letter.pdfFunding forSite

  3. Letter: Incorporation of Input from the Environmental Management SSAB into

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12Approvedof6, 1945:LauraPlains &Letter.pdfFunding

  4. Secretaries Bodman and Schafer's letter to Senator Bingaman | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014,Zaleski - Policy Advisor, EnergyA look atTransfers |Energy A letter

  5. Trigger probe for determining the orientation of the power distribution of an electron beam

    DOE Patents [OSTI]

    Elmer, John W. (Danville, CA); Palmer, Todd A. (Livermore, CA); Teruya, Alan T. (Livermore, CA)

    2007-07-17T23:59:59.000Z

    The present invention relates to a probe for determining the orientation of electron beams being profiled. To accurately time the location of an electron beam, the probe is designed to accept electrons from only a narrowly defined area. The signal produced from the probe is then used as a timing or triggering fiducial for an operably coupled data acquisition system. Such an arrangement eliminates changes in slit geometry, an additional signal feedthrough in the wall of a welding chamber and a second timing or triggering channel on a data acquisition system. As a result, the present invention improves the accuracy of the resulting data by minimizing the adverse effects of current slit triggering methods so as to accurately reconstruct electron or ion beams.

  6. The Sector Collector of the CMS DT Trigger system: Installation and Performance

    E-Print Network [OSTI]

    Travaglini, R

    2008-01-01T23:59:59.000Z

    Drift Tubes chambers are used for muon detection in the central region of the CMS experiment at LHC. Custom electronics is used for reconstructing muon track segments and for triggering the CMS readout. The trigger Sector Collector modules collect muon segments identified by the on-chamber devices, synchronize the data received from different chambers and convert from LVDS to Optical for transmission to the off-detector electronics. Installation and integration tests were developed for tuning both firmware and hardware of the Sector Collector system: results are reviewed. The system performance during CMS data taking with cosmic rays is discussed.

  7. Trigger - and heat-transfer times measured during experimental molten-fuel-interactions

    SciTech Connect (OSTI)

    Spitznagel, N.; Dürig, T.; Zimanowski, B. [Physikalisch-Vulkanologisches Labor, Universität Würzburg, Pleicherwall 1, 97070 Würzburg (Germany)] [Physikalisch-Vulkanologisches Labor, Universität Würzburg, Pleicherwall 1, 97070 Würzburg (Germany)

    2013-10-15T23:59:59.000Z

    A modified setup featuring high speed high resolution data and video recording was developed to obtain detailed information on trigger and heat transfer times during explosive molten fuel-coolant-interaction (MFCI). MFCI occurs predominantly in configurations where water is entrapped by hot melt. The setup was modified to allow direct observation of the trigger and explosion onset. In addition the influences of experimental control and data acquisition can now be more clearly distinguished from the pure phenomena. More precise experimental studies will facilitate the description of MFCI thermodynamics.

  8. Multi-line triggering and interdigitated electrode structure for photoconductive semiconductor switches

    DOE Patents [OSTI]

    Mar, Alan (Albuquerque, NM); Zutavern, Fred J. (Albuquerque, NM); Loubriel, Guillermo (Albuquerque, NM)

    2007-02-06T23:59:59.000Z

    An improved photoconductive semiconductor switch comprises multiple-line optical triggering of multiple, high-current parallel filaments between the switch electrodes. The switch can also have a multi-gap, interdigitated electrode for the generation of additional parallel filaments. Multi-line triggering can increase the switch lifetime at high currents by increasing the number of current filaments and reducing the current density at the contact electrodes in a controlled manner. Furthermore, the improved switch can mitigate the degradation of switching conditions with increased number of firings of the switch.

  9. The trigger system of the ICARUS experiment for the CNGS beam

    E-Print Network [OSTI]

    M. Antonello; B. Baibussinov; P. Benetti; F. Boffelli; A. Bubak; E. Calligarich; S. Centro; A. Cesana; K. Cieslik; D. B. Cline; A. G. Cocco; A. Dabrowska; D. Dequal; A. Dermenev; R. Dolfini; A. Falcone; C. Farnese; A. Fava; A. Ferrari; G. Fiorillo; D. Gibin; S. Gninenko; A. Guglielmi; M. Haranczyk; J. Holeczek; M. Kirsanov; J. Kisiel; I. Kochanek; J. Lagoda; S. Mania; A. Menegolli; G. Meng; C. Montanari; M. Nicoletto; S. Otwinowski; P. Picchi; F. Pietropaolo; P. Plonski; A. Rappoldi; G. L. Raselli; M. Rossella; C. Rubbia; P. Sala; A. Scaramelli; E. Segreto; F. Sergiampietri; D. Stefan; R. Sulej; M. Szarska; M. Terrani; M. Torti; F. Varanini; S. Ventura; C. Vignoli; H. Wang; X. Yang; A. Zalewska; A. Zani; K. Zaremba

    2014-08-08T23:59:59.000Z

    The ICARUS T600 detector, with its 470 tons of active mass, is the largest liquid Argon TPC ever built. Operated for three years in the LNGS underground laboratory, it has collected thousands of CNGS neutrino beam interactions and cosmic ray events with energy spanning from tens of MeV to tens of GeV, with a trigger system based on scintillation light, charge signal on TPC wires and time information (for beam related events only). The performance of trigger system in terms of efficiency, background and live-time as a function of the event energy for the CNGS data taking is presented.

  10. PERIASTRON PASSAGE TRIGGERING OF THE 19TH CENTURY ERUPTIONS OF ETA CARINAE

    SciTech Connect (OSTI)

    Kashi, Amit; Soker, Noam, E-mail: kashia@physics.technion.ac.i, E-mail: soker@physics.technion.ac.i [Department of Physics, Technion-Israel Institute of Technology, Haifa 32000 (Israel)

    2010-11-01T23:59:59.000Z

    We reconstruct the evolution of {eta} Car in the last two centuries under the assumption that the two 19th century eruptions were triggered by periastron passages and through this reconstruction constrain the binary parameters. The beginning of the lesser eruption (LE) at the end of the 19th century occurred when the system was very close to periastron passage, suggesting that the secondary triggered the LE. We assume that the 1838-1858 great eruption (GE) was triggered by a periastron passage as well. We also assume that mass transferred from the primary to the secondary star accounts for the extra energy of the GE. With these assumptions we constrain the total mass of the binary system to be M = M{sub 1} + M{sub 2} {approx}> 250 M{sub sun}. These higher than commonly used masses better match the observed luminosity with stellar evolutionary tracks. Including mass loss by the two stars and mass transfer from the primary to the secondary we obtain a good match of periastron passages to the two peaks in the light curve of the GE. Based on these findings and a similar behavior of P Cygni, we speculate that major luminous blue variable eruptions are triggered by stellar companions and that in extreme cases a short duration event with a huge mass transfer rate can lead to a bright transient event on timescales of weeks to months (a 'supernova impostor').

  11. DOI: 10.1002/adma.200700091 Remotely Triggered Release from Magnetic Nanoparticles**

    E-Print Network [OSTI]

    Bhatia, Sangeeta

    DOI: 10.1002/adma.200700091 Remotely Triggered Release from Magnetic Nanoparticles** By Austin M, and Sangeeta N. Bhatia* Multivalent nanoparticles have tremendous potential in the diagnosis and treatment nanoparticle homing, polymers (e.g., polyethylene glycol (PEG)) to improve nanoparticle pharmacokinetics

  12. Virtual MISO Triggers in WiFi-like Networks Oscar Bejarano and Edward W. Knightly

    E-Print Network [OSTI]

    Knightly, Edward W.

    Virtual MISO Triggers in WiFi-like Networks Oscar Bejarano and Edward W. Knightly ECE Department, Rice University, Houston, TX 77005 Technical Report Abstract--Virtual Multiple-Input Single-Output (vMISO) sys- tems distribute multi-antenna diversity capabilities between a sending and a cooperating node. vMISO

  13. Virtual MISO Triggers in Wi-Fi-like Networks Oscar Bejarano and Edward W. Knightly

    E-Print Network [OSTI]

    Knightly, Edward W.

    Virtual MISO Triggers in Wi-Fi-like Networks Oscar Bejarano and Edward W. Knightly ECE Department-Input Single-Output (vMISO) sys- tems distribute multi-antenna diversity capabilities between a sending and a cooperating node. vMISO has the potential to vastly improve wireless link reliability and bit error rates

  14. A ground level gamma-ray burst observed in association with rocket-triggered lightning

    E-Print Network [OSTI]

    Florida, University of

    A ground level gamma-ray burst observed in association with rocket-triggered lightning J. R. Dwyer 2004; published 13 March 2004. [1] We report the observation of an intense gamma-ray burst observed lightning channel with gamma-ray energies extending up to more than 10 MeV. The burst consisted of 227

  15. Quantifying the gap between embedded control models and time-triggered implementations

    E-Print Network [OSTI]

    Pappas, George J.

    Quantifying the gap between embedded control models and time-triggered implementations Hakan the controller design is complete, the designed controller model is typically expressed as a set of control control components to exe- cutable code introduces errors due to a variety of factors

  16. Theory of optically-triggered electrical breakdown of semiconductors Kenneth E. Kambour1

    E-Print Network [OSTI]

    Myles, Charles W.

    experimental work has focused on determining the ultimate breakdown field for an insulator [1,2 destruction if unchecked. Much effort has been focused on understanding breakdown of solid insulators [1, 2Theory of optically-triggered electrical breakdown of semiconductors Kenneth E. Kambour1 , Harold P

  17. Energy Measurement and Strategy for a Trigger of Ultra High Energy Cosmic

    E-Print Network [OSTI]

    Erdmann, Martin

    Energy Measurement and Strategy for a Trigger of Ultra High Energy Cosmic Rays Measured with Radio Ray induced Air Showers 3 2.1 Physics of Ultra High Energy Cosmic Rays . . . . . . . . . . . . . . . 3 2.1.1 Energy Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.2 Composition

  18. Drought triggered tree mortality in mixed conifer forests in Yosemite National Park, California, USA

    E-Print Network [OSTI]

    Taylor, Alan

    such as fire or wind- throw may be identified easily, longer periods of elevated tree mortality are usuallyDrought triggered tree mortality in mixed conifer forests in Yosemite National Park, California form 26 July 2005; accepted 26 July 2005 Abstract Tree mortality is an important process causing forest

  19. Monsoon surges trigger oceanic eddy formation and propagation in the lee of the Philippine Islands

    E-Print Network [OSTI]

    with eddies that form in the lee of the Cabo Verde and Canary Islands [Chavanne et al., 2002; Sangra et al., 2007]. The Hawaii, Cabo Verde and Canary Islands are located in the trades where winds have typicalMonsoon surges trigger oceanic eddy formation and propagation in the lee of the Philippine Islands

  20. A Self-Triggered Readout for a Time Projection Andrew Thompson Werner

    E-Print Network [OSTI]

    A Self-Triggered Readout for a Time Projection Chamber by Andrew Thompson Werner Submitted in Physics at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY February 2004 c Andrew Thompson Werner, MMIV. All for a Time Projection Chamber by Andrew Thompson Werner Submitted to the Department of Physics on December 9

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

    E-Print Network [OSTI]

    Simunic, Tajana

    Adapting Task Utility in Externally Triggered Energy Harvesting Wireless Sensing Systems Jamie tajana@ucsd.edu Abstract--Energy harvesting sensor nodes eliminate the need for post-deployment physical the utility of their tasks to accommodate the energy availability. For example, on sunny days, a solar

  2. Self-triggered Communication Enabled Control of Distributed Generation in Microgrids

    E-Print Network [OSTI]

    Mazumder, Sudip K.

    1 Self-triggered Communication Enabled Control of Distributed Generation in Microgrids Muhammad. I. INTRODUCTION Effective integration of multiple distributed generation (DG) units in microgrids. Conventionally the secondary control in a microgrid is based on a centralized control structure using periodic

  3. The triggering of subglacial lake drainage during rapid glacier drawdown: Crane Glacier, Antarctic Peninsula

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The triggering of subglacial lake drainage during rapid glacier drawdown: Crane Glacier, Antarctic Glacier, Antarctic Peninsula, shows an unusual temporal pattern of elevation loss: a period of very rapid is not seen. Bathymetry in Crane Glacier fjord reveals a series of flat-lying, formerly subglacial deeps

  4. `ODDS ALGORITHM'-BASED OPPORTUNITY-TRIGGERED PREVENTIVE MAINTENANCE WITH PRODUCTION POLICY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 `ODDS ALGORITHM'-BASED OPPORTUNITY-TRIGGERED PREVENTIVE MAINTENANCE WITH PRODUCTION POLICY THOMAS.monnin}@cran.uhp-nancy.fr Abstract: In the field of manufacturing, the planning of opportunistic preventive maintenance actions' (Bruss algorithm), opportunistic preventive maintenance. 1. INTRODUCTION With today's growing demand

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

    E-Print Network [OSTI]

    Shimizu, Shima; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    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...

  6. Conduct and Impact vs. State of the Market Triggers for Automatic Market Mitigation Shmuel S. Oren

    E-Print Network [OSTI]

    Oren, Shmuel S.

    /distributed control mechanisms integrated into the traditional command and control power systems operations. HenceConduct and Impact vs. State of the Market Triggers for Automatic Market Mitigation Shmuel S. Oren characteristics of power systems make electricity markets extremely vulnerable to temporal and locational market

  7. Distributed Network Utility Maximization using Event-triggered augmented Lagrangian methods

    E-Print Network [OSTI]

    Lemmon, Michael

    Distributed Network Utility Maximization using Event-triggered augmented Lagrangian methods Pu Wan problems in networked systems, like distributed control of sensor-actuator networks [1], resource to collaboratively solve a network opti- mization problem. A variety of distributed algorithms have been proposed

  8. Ultra-Low Voltage VCO Design Using Schmitt Trigger on SOI

    E-Print Network [OSTI]

    Ayers, Joseph

    , and self-heating effect. In order to reduce this disadvantage, several techniques for body-contact haveUltra-Low Voltage VCO Design Using Schmitt Trigger on SOI Kyung Ki Kim Department of Electrical of Electrical and Computer Engineering Northeastern University Boston, U.S.A ybk@ece.neu.edu Young Jun Lee Next

  9. A co-simulation framework for design of time-triggered automotive cyber physical systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    A co-simulation framework for design of time-triggered automotive cyber physical systems Zhenkai Automotive control system SystemC a b s t r a c t Designing cyber-physical systems (CPS) is challenging due to the tight interactions between software, network/platform, and physical components. Automotive control sys

  10. A Wakeup Call for Internet Monitoring Systems: The Case for Distributed Triggers

    E-Print Network [OSTI]

    is not perceived to be a DDoS attack, e.g., the aggregate traffic to any destination from a set of nodes runningA Wakeup Call for Internet Monitoring Systems: The Case for Distributed Triggers Ankur Jain is to continually record system state (e.g., to study traffic pat- terns in a network) or to obtain an instantaneous

  11. Uncorking the bottle: What triggered the Paleocene/Eocene thermal maximum methane release?

    E-Print Network [OSTI]

    realms that has been attributed to a massive methane (CH4) release from marine gas hydrate reservoirs(s) to increase water temperatures rapidly enough to trigger the massive thermal dissociation of gas hydrate the sediment column and show the effect of the temperature change on the gas hydrate stability zone through

  12. A Fast Topological Trigger for Real Time Analysis of Nanosecond Phenomena; Opening the Gamma Ray Window to Our Universe

    SciTech Connect (OSTI)

    Krennrich, Frank [Iowa State University] Iowa State University

    2013-09-24T23:59:59.000Z

    This work was to enable the development of a proof-of-principle nanosecond trigger system that is designed to perform a real time analysis of fast Cherenkov light flashes from air showers. The basic building blocks of the trigger system have been designed and constructed, and a real world system is now operating in the VERITAS experiment.

  13. LETTER doi:10.1038/nature12293 Reshaping of the conformational search of a protein

    E-Print Network [OSTI]

    Tans, Sander

    trigger factor Alireza Mashaghi1 , Gu¨nter Kramer2 , Philipp Bechtluft1 , Beate Zachmann-Brand2 , Arnold J

  14. 230 IEEE SIGNAL PROCESSING LETTERS, VOL. 4, NO. 8, AUGUST 1997 A Pseudoinverse Update Algorithm for

    E-Print Network [OSTI]

    Lu, Wu-Sheng

    230 IEEE SIGNAL PROCESSING LETTERS, VOL. 4, NO. 8, AUGUST 1997 A Pseudoinverse Update Algorithm and Computer Engi- neering, University of Victoria, Victoria, B.C., Canada V8W 3P6 (e-mail: kirlin

  15. Acquisition Letter 2009-03 Acquisition Planning-Extending A Management...

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

    Planning AcquisitionLetter2009dash03Rev1.pdf More Documents & Publications Subject: Cost and Price Analysis Microsoft Word - Policy Flash 2010-67 Attachment 1 Subject: Cost...

  16. ENTERPRISE RISK MANAGEMENT 2009 Annual Report Letter to President Emmert . . . . . . . . . . . . . 2

    E-Print Network [OSTI]

    Kaminsky, Werner

    0 ENTERPRISE RISK MANAGEMENT 2009 Annual Report #12;1 Letter to President Emmert Analysis Employment Liability Seminar . . . . . . . . . . . 13 Human Resources ­ Managing Key Risks: President Mark Emmert From: President's Advisory Committee on Enterprise Risk Management Re: UW Enterprise

  17. LETTER Community ecology theory predicts the effects of agrochemical mixtures on aquatic biodiversity and ecosystem

    E-Print Network [OSTI]

    Lajeunesse, Marc J.

    LETTER Community ecology theory predicts the effects of agrochemical mixtures on aquatic experiment to examine the effects of pairwise agrochemical mixtures [fertiliser, herbicide (atrazine. As postulated, the responses of biodiversity and ecosystem properties to agrochemicals alone and in mixtures

  18. Volume$3, number 3 CHEMICAL. PHYSICS LETTERS 1 Februrf 1978 INTERACTION OF METHANOL WITH RUTHENIUM

    E-Print Network [OSTI]

    Goodman, Wayne

    Volume$3, number 3 CHEMICAL. PHYSICS LETTERS 1 Februrf 1978 INTERACTION OF METHANOL WITH RUTHENIUM of methanol with a clean methods. Methanol dissociates upon adsorption at 300 K and yields Ha(g) and chemisorbed CO as the domiwt

  19. Letter to the Editor Microwave assisted exfoliation and reduction of graphite

    E-Print Network [OSTI]

    Letter to the Editor Microwave assisted exfoliation and reduction of graphite oxide yet versatile method to simultaneously achieve the exfoliation and reduction of graphite oxide of crumpled, few-layer thick and electronically conductive graphitic sheets. Using the microwave exfoliated

  20. APPENDIX G5: All letters and e-mails from environmental community Page Number

    E-Print Network [OSTI]

    for Environmental Action Now ­ Geoffrey Castro...................................2 Conservation Law Foundation...............................................................................................................................26 National Environmental Trust's Conserve our Ocean Legacy Campaign ­ Matt Rand....31 NaturalAPPENDIX G5: All letters and e-mails from environmental community Page Number Citizens League

  1. January 9, 2014 10:13 WSPC/INSTRUCTION FILE ppl-benoit Parallel Processing Letters

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    January 9, 2014 10:13 WSPC/INSTRUCTION FILE ppl-benoit Parallel Processing Letters c World (2013)" DOI : 10.1142/S0129626413400033 #12;January 9, 2014 10:13 WSPC/INSTRUCTION FILE ppl-benoit 2

  2. August 13, 2008 9:13 MICHALAKES AND VACHHARAJANI paper-ppl Parallel Processing Letters

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    August 13, 2008 9:13 MICHALAKES AND VACHHARAJANI paper-ppl Parallel Processing Letters c World is sponsored by the National Science Foundation. 1 #12;August 13, 2008 9:13 MICHALAKES AND VACHHARAJANI paper-ppl

  3. Letter box line blackener for the HDTV/conventional-analog hybrid system

    DOE Patents [OSTI]

    Wysocki, Frederick J.; Nickel, George H.

    2006-07-18T23:59:59.000Z

    A blackener for letter box lines associated with a HDTV/conventional-analog hybrid television transmission where the blackener counts horizontal sync pulses contained in the HDTV/conventional-analog hybrid television transmission and determines when the HDTV/conventional-analog hybrid television transmission is in letter-box lines: if it is, then the blackener sends substitute black signal to an output; and if it is not, then the blackener sends the HDTV/conventional-analog hybrid television transmission to the output.

  4. 21 March1997 ChemicalPhysicsLetters267(1997)370-376

    E-Print Network [OSTI]

    Morse, Michael D.

    ELSEVIER 21 March1997 ChemicalPhysicsLetters267(1997)370-376 CHEMICAL PHYSICS LETTERS Resonant two1997 Abstract Resonant two-photon ionization spectra of 285i2N, 28'29Si2N,and 28"3°Si2Nhave been lay lowest in energy with the C2v structure only 1574 cm -~ 0009-2614/97/$17.00 Copyright© 1997

  5. POLICY FLASH 2015-31- Acquisition Letter No. AL 2015-06, Performance of Inherently Governmental and Critical Functions

    Broader source: Energy.gov [DOE]

    Attached is the final Acquisition Letter (AL) No. AL 2015-06, Performance of Inherently Governmental and Critical Functions, dated July 01, 2015. This AL provides guidance to DOE and NNSA HCAs and COs for implementing OFPP Policy Letter 11-01, Performance of Inherently Governmental and Critical Functions. The guidance included in this AL is intended to serve as interim guidance for DOE until such time as the Federal Acquisition Regulation (FAR) is amended to implement the Policy Letter in full detail.

  6. Control and monitoring of on-line trigger algorithms using a SCADA system

    E-Print Network [OSTI]

    van Herwijnen, E; Barczyk, A; Damodaran, B; Frank, M; Gaidioz, B; Gaspar, C; Jacobsson, R; Jost, B; Neufeld, N; Bonifazi, F; Callot, O; Lopes, H

    2006-01-01T23:59:59.000Z

    LHCb [1] has an integrated Experiment Control System (ECS) [2], based on the commercial SCADA system PVSS [3]. The novelty of this approach is that, in addition to the usual control and monitoring of experimental equipment, it provides control and monitoring for software processes, namely the on-line trigger algorithms. Algorithms based on Gaudi [4] (the LHCb software framework) compute the trigger decisions on an event filter farm of around 2000 PCs. Gaucho [5], the GAUdi Component Helping Online, was developed to allow the control and monitoring of Gaudi algorithms. Using Gaucho, algorithms can be monitored from the run control system provided by the ECS. To achieve this, Gaucho implements a hierarchical control system using Finite State Machines. In this article we describe the Gaucho architecture, the experience of monitoring a large number of software processes and some requirements for future extensions.

  7. Triggered star formation on the borders of the Galactic HII region RCW 82

    E-Print Network [OSTI]

    M. Pomares; A. Zavagno; L. Deharveng; M. Cunningham; P. Jones; S. Kurtz; D. Russeil; J. Caplan; F. Comeron

    2008-12-14T23:59:59.000Z

    We are engaged in a multi-wavelength study of several Galactic HII regions that exhibit signposts of triggered star formation on their borders, and where the collect and collapse process could be at work. When addressing the question of triggered star formation it is critically important to ensure the real association between the ionized gas and the neutral material observed nearby. In this paper we stress this point, and present CO observations of the RCW 82 star forming region. The velocity distribution of the molecular gas is combined with the study of young stellar objects (YSOs) detected in the direction of RCW 82. We discuss the YSO's evolutionary status using near- and mid-IR data. The spatial and velocity distributions of the molecular gas are used to discuss the possible scenarios for the star formation around RCW 82.

  8. Convection Triggering

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution AndControlling Graphene's Electronicnew

  9. Respiratory triggered 4D cone-beam computed tomography: A novel method to reduce imaging dose

    SciTech Connect (OSTI)

    Cooper, Benjamin J. [Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006, Australia and Department of Medical Physics and Radiation Engineering, Canberra Hospital, Canberra, ACT 2605 (Australia); O'Brien, Ricky T.; Keall, Paul J. [Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006 (Australia); Balik, Salim; Hugo, Geoffrey D. [Radiation Oncology, Virginia Commonwealth University, 401 College Street, P.O.Box 980058, Richmond, Virginia 23298-0058 (United States)

    2013-04-15T23:59:59.000Z

    Purpose: A novel method called respiratory triggered 4D cone-beam computed tomography (RT 4D CBCT) is described whereby imaging dose can be reduced without degrading image quality. RT 4D CBCT utilizes a respiratory signal to trigger projections such that only a single projection is assigned to a given respiratory bin for each breathing cycle. In contrast, commercial 4D CBCT does not actively use the respiratory signal to minimize image dose. Methods: To compare RT 4D CBCT with conventional 4D CBCT, 3600 CBCT projections of a thorax phantom were gathered and reconstructed to generate a ground truth CBCT dataset. Simulation pairs of conventional 4D CBCT acquisitions and RT 4D CBCT acquisitions were developed assuming a sinusoidal respiratory signal which governs the selection of projections from the pool of 3600 original projections. The RT 4D CBCT acquisition triggers a single projection when the respiratory signal enters a desired acquisition bin; the conventional acquisition does not use a respiratory trigger and projections are acquired at a constant frequency. Acquisition parameters studied were breathing period, acquisition time, and imager frequency. The performance of RT 4D CBCT using phase based and displacement based sorting was also studied. Image quality was quantified by calculating difference images of the test dataset from the ground truth dataset. Imaging dose was calculated by counting projections. Results: Using phase based sorting RT 4D CBCT results in 47% less imaging dose on average compared to conventional 4D CBCT. Image quality differences were less than 4% at worst. Using displacement based sorting RT 4D CBCT results in 57% less imaging dose on average, than conventional 4D CBCT methods; however, image quality was 26% worse with RT 4D CBCT. Conclusions: Simulation studies have shown that RT 4D CBCT reduces imaging dose while maintaining comparable image quality for phase based 4D CBCT; image quality is degraded for displacement based RT 4D CBCT in its current implementation.

  10. LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BNL

    SciTech Connect (OSTI)

    P.C. Weaver

    2010-10-22T23:59:59.000Z

    5098-LR-01-0 -LETTER REPORT INDEPENDENT VERIFICATION OF THE HIGH FLUX BEAM REACTOR DECOMMISSIONING PROJECT FAN HOUSE, BUILDING 704 BROOKHAVEN NATIONAL LABORATORY

  11. IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 20, NO. 13, JULY 1, 2008 1151 Low-Cost Optoelectronic Self-Injection-Locked

    E-Print Network [OSTI]

    Choi, Woo-Young

    -mail: Kamituna@aecl. ntt.co.jp). Color versions of the figures in this letter are available online at http

  12. Feasibility of Respiratory Triggering for MR-Guided Microwave Ablation of Liver Tumors Under General Anesthesia

    SciTech Connect (OSTI)

    Morikawa, Shigehiro, E-mail: morikawa@belle.shiga-med.ac.jp; Inubushi, Toshiro [Shiga University of Medical Science, Seta Tsukinowa-cho, Ohtsu, Molecular Neuroscience Research Center (Japan); Kurumi, Yoshimasa; Naka, Shigeyuki; Sato, Koichiro; Demura, Koichi; Tani, Tohru [Shiga University of Medical Science, Department of Surgery (Japan); Haque, Hasnine A [GE-Yokogawa Medical Systems (Japan)

    2004-08-15T23:59:59.000Z

    We obtained clear and reproducible MR fluoroscopic images and temperature maps for MR image-guided microwave ablation of liver tumors under general anesthesia without suspending the artificial ventilation. Respiratory information was directly obtained from air-way pressure without a sensor on the chest wall. The trigger signal started scanning of one whole image with a spoiled gradient echo sequence. The delay time before the start of scanning was adjusted to acquire the data corresponding to the k-space center at the maximal expiratory phase. The triggered images were apparently clearer than the nontriggered ones and the location of the liver was consistent, which made targeting of the tumor easy. MR temperature images, which were highly susceptible to the movement of the liver, during microwave ablation using a proton resonance frequency method, could be obtained without suspending the artificial ventilation. Respiratory triggering technique was found to be useful for MR fluoroscopic images and MR temperature monitoring in MR-guided microwave ablation of liver tumors under general anesthesia.

  13. LASER TRIGGERED GAS SWITCHES UTILIZING BEAM TRANSPORT THROUGH 1 MO-cm DEIONIZED WATER.

    SciTech Connect (OSTI)

    Woodworth, Joseph Ray; Lehr, Jane [Sandia National Laboratories, Albuquerque, NM; Blickem, James R.; Wallace, Zachariah R.; Anaya, Victor Jr; Corley, John P; Lott, John; Hodge, Keith; Zameroski, Nathan D. [Sandia National Laboratories, Albuquerque, NM

    2005-11-01T23:59:59.000Z

    We report on the successful attempts to trigger high voltage pressurized gas switches by utilizing beam transport through 1 MO-cm deionized water. The wavelength of the laser radiation was 532 nm. We have investigated Nd: YAG laser triggering of a 6 MV, SF6 insulated gas switch for a range of laser and switch parameters. Laser wavelength of 532 nm with nominal pulse lengths of 10 ns full width half maximum (FWHM) were used to trigger the switch. The laser beam was transported through 67 cm-long cell of 1 MO-cm deionized water constructed with anti reflection UV grade fused silica windows. The laser beam was then focused to form a breakdown arc in the gas between switch electrodes. Less than 10 ns jitter in the operation of the switch was obtained for laser pulse energies of between 80-110 mJ. Breakdown arcs more than 35 mm-long were produced by using a 70 cm focusing optic.

  14. Performance study of GPUs in real-time trigger applications for HEP experiments

    SciTech Connect (OSTI)

    Ketchum, W.; /Chicago U.; Amerio, S.; /INFN, Padua; Bastieri, D.; Bauce, M.; /INFN, Padua /Padua U.; Catastini, P.; /Fermilab; Gelain, S.; /Padua U.; Hahn, K.; /Fermilab; Kim, Y.K.; /Fermilab /Chicago U.; Liu, T.; /Fermilab; Lucchesi, D.; /INFN, Padua /Padua U.; Urso, G.; ,

    2011-06-01T23:59:59.000Z

    Graphical Processing Units (GPUs) have evolved into highly parallel, multi-threaded, multicore powerful processors with high memory bandwidth. GPUs are used in a variety of intensive computing applications. The combination of highly parallel architecture and high memory bandwidth makes GPUs a potentially promising technology for effective real-time processing for High Energy Physics (HEP) experiments. However, not much is known of their performance in real-time applications that require low latency, such as the trigger for HEP experiments. We describe an R and D project with the goal to study the performance of GPU technology for possible low latency applications, performing basic operations as well as some more advanced HEP lower-level trigger algorithms (such as fast tracking or jet finding). We present some preliminary results on timing measurements, comparing the performance of a CPU versus a GPU with NVIDIA's CUDA general-purpose parallel computing architecture, carried out at CDF's Level-2 trigger test stand. These studies will provide performance benchmarks for future studies to investigate the potential and limitations of GPUs for real-time applications in HEP experiments.

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

    E-Print Network [OSTI]

    Kobayashi, Dai; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    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...

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

    E-Print Network [OSTI]

    Kobayashi, Dai; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    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 ...

  17. Measurement of the B ? lifetime using a simulation free approach for trigger bias correction

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

    Aaltonen, T.; Adelman, J.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.; Apresyan, A.; Arisawa, T.; Artikov, A.; Asaadi, J.; Ashmanskas, W.; Attal, A.; Aurisano, A.; Azfar, F.; Badgett, W.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barria, P.; Bartos, P.; Bauer, G.; Beauchemin, P.-H.; Bedeschi, F.; Beecher, D.; Behari, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Beretvas, A.; Bhatti, A.; Binkley, M.; Bisello, D.; Bizjak, I.; Blair, R. E.; Blocker, C.; Blumenfeld, B.; Bocci, A.; Bodek, A.; Boisvert, V.; Bortoletto, D.; Boudreau, J.; Boveia, A.; Brau, B.; Bridgeman, A.; Brigliadori, L.; Bromberg, C.; Brubaker, E.; Budagov, J.; Budd, H. S.; Budd, S.; Burkett, K.; Busetto, G.; Bussey, P.; Buzatu, A.; Byrum, K. L.; Cabrera, S.; Calancha, C.; Camarda, S.; Campanelli, M.; Campbell, M.; Canelli, F.; Canepa, A.; Carls, B.; Carlsmith, D.; Carosi, R.; Carrillo, S.; Carron, S.; Casal, B.; Casarsa, M.; Castro, A.; Catastini, P.; Cauz, D.; Cavaliere, V.; Cavalli-Sforza, M.; Cerri, A.; Cerrito, L.; Chang, S. H.; Chen, Y. C.; Chertok, M.; Chiarelli, G.; Chlachidze, G.; Chlebana, F.; Cho, K.; Chokheli, D.; Chou, J. P.; Chung, K.; Chung, W. H.; Chung, Y. S.; Chwalek, T.; Ciobanu, C. I.; Ciocci, M. A.; Clark, A.; Clark, D.; Compostella, G.; Convery, M. E.; Conway, J.; Corbo, M.; Cordelli, M.; Cox, C. A.; Cox, D. J.; Crescioli, F.; Cuenca Almenar, C.; Cuevas, J.; Culbertson, R.; Cully, J. C.; Dagenhart, D.; d’Ascenzo, N.; Datta, M.; Davies, T.; de Barbaro, P.; De Cecco, S.; Deisher, A.; De Lorenzo, G.; Dell’Orso, M.; Deluca, C.; Demortier, L.; Deng, J.; Deninno, M.; d’Errico, M.; Di Canto, A.; Di Ruzza, B.; Dittmann, J. R.; D’Onofrio, M.; Donati, S.; Dong, P.; Dorigo, T.; Dube, S.; Ebina, K.; Elagin, A.; Erbacher, R.; Errede, D.; Errede, S.; Ershaidat, N.; Eusebi, R.; Fang, H. C.; Farrington, S.; Fedorko, W. T.; Feild, R. G.; Feindt, M.; Fernandez, J. P.; Ferrazza, C.; Field, R.; Flanagan, G.; Forrest, R.; Frank, M. J.; Franklin, M.; Freeman, J. C.; Furic, I.; Gallinaro, M.; Galyardt, J.; Garberson, F.; Garcia, J. E.; Garfinkel, A. F.; Garosi, P.; Gerberich, H.; Gerdes, D.; Gessler, A.; Giagu, S.; Giakoumopoulou, V.; Giannetti, P.; Gibson, K.; Gimmell, J. L.; Ginsburg, C. M.; Giokaris, N.; Giordani, M.; Giromini, P.; Giunta, M.; Giurgiu, G.; Glagolev, V.; Glenzinski, D.; Gold, M.; Goldschmidt, N.; Golossanov, A.; Gomez, G.; Gomez-Ceballos, G.; Goncharov, M.; González, O.; Gorelov, I.; Goshaw, A. T.; Goulianos, K.; Gresele, A.; Grinstein, S.; Grosso-Pilcher, C.; Group, R. C.; Grundler, U.; Guimaraes da Costa, J.; Gunay-Unalan, Z.; Haber, C.; Hahn, S. R.; Halkiadakis, E.; Han, B.-Y.; Han, J. Y.; Happacher, F.; Hara, K.; Hare, D.; Hare, M.; Harr, R. F.; Hartz, M.; Hatakeyama, K.; Hays, C.; Heck, M.; Heinrich, J.; Herndon, M.; Heuser, J.; Hewamanage, S.; Hidas, D.; Hill, C. S.; Hirschbuehl, D.; Hocker, A.; Hou, S.; Houlden, M.; Hsu, S.-C.; Hughes, R. E.; Huffman, B. T.; Hurwitz, M.; Husemann, U.; Hussein, M.; Huston, J.; Incandela, J.; Introzzi, G.; Iori, M.; Ivanov, A.; James, E.; Jang, D.; Jayatilaka, B.; Jeon, E. J.; Jha, M. K.; Jindariani, S.; Johnson, W.; Jones, M.; Joo, K. K.; Jun, S. Y.; Jung, J. E.; Junk, T. R.; Kamon, T.; Kar, D.; Karchin, P. E.; Kato, Y.; Kephart, R.; Ketchum, W.; Keung, J.; Khotilovich, V.; Kilminster, B.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, M. J.; Kim, S. B.; Kim, S. H.; Kim, Y. K.; Kimura, N.; Kirsch, L.; Klimenko, S.; Kondo, K.; Kong, D. J.; Konigsberg, J.; Korytov, A.; Kotwal, A. V.; Kreps, M.; Kroll, J.; Krop, D.; Krumnack, N.; Kruse, M.; Krutelyov, V.; Kuhr, T.; Kulkarni, N. P.; Kurata, M.; Kwang, S.; Laasanen, A. T.; Lami, S.; Lammel, S.; Lancaster, M.; Lander, R. L.; Lannon, K.; Lath, A.; Latino, G.; Lazzizzera, I.; LeCompte, T.; Lee, E.; Lee, H. S.; Lee, J. S.; Lee, S. W.; Leone, S.; Lewis, J. D.; Lin, C.-J.; Linacre, J.; Lindgren, M.; Lipeles, E.; Lister, A.; Litvintsev, D. O.; Liu, C.; Liu, T.; Lockyer, N. S.; Loginov, A.; Lovas, L.; Lucchesi, D.; Lueck, J.; Lujan, P.; Lukens, P.; Lungu, G.; Lyons, L.; Lys, J.; Lysak, R.; MacQueen, D.; Madrak, R.; Maeshima, K.; Makhoul, K.; Maksimovic, P.; Malde, S.; Malik, S.; Manca, G.; Manousakis-Katsikakis, A.; Margaroli, F.; Marino, C.; Marino, C. P.; Martin, A.; Martin, V.; Martínez, M.; Martínez-Ballarín, R.; Mastrandrea, P.; Mathis, M.; Mattson, M. E.; Mazzanti, P.; McFarland, K. S.; McIntyre, P.; McNulty, R.; Mehta, A.; Mehtala, P.; Menzione, A.; Mesropian, C.; Miao, T.; Mietlicki, D.; Miladinovic, N.; Miller, R.; Mills, C.; Milnik, M.; Mitra, A.; Mitselmakher, G.; Miyake, H.; Moed, S.; Moggi, N.; Mondragon, M. N.; Moon, C. S.; Moore, R.; Morello, M. J.; Morlock, J.; Movilla Fernandez, P.; Mülmenstädt, J.; Mukherjee, A.; Muller, Th.; Murat, P.

    2011-02-01T23:59:59.000Z

    The collection of a large number of B-hadron decays to hadronic final states at the CDF II Detector is possible due to the presence of a trigger that selects events based on track impact parameters. However, the nature of the selection requirements of the trigger introduces a large bias in the observed proper-decay-time distribution. A lifetime measurement must correct for this bias, and the conventional approach has been to use a Monte Carlo simulation. The leading sources of systematic uncertainty in the conventional approach are due to differences between the data and the Monte Carlo simulation. In this paper, we present an analytic method for bias correction without using simulation, thereby removing any uncertainty due to the differences between data and simulation. This method is presented in the form of a measurement of the lifetime of the B? using the mode B??D???. The B? lifetime is measured as ?B?=1.663±0.023±0.015 ps, where the first uncertainty is statistical and the second systematic. This new method results in a smaller systematic uncertainty in comparison to methods that use simulation to correct for the trigger bias.

  18. Measurement of the $B^-$ lifetime using a simulation free approach for trigger bias correction

    SciTech Connect (OSTI)

    Aaltonen, T.; /Helsinki Inst. of Phys.; Adelman, J.; /Chicago U., EFI; Alvarez Gonzalez, B.; /Cantabria Inst. of Phys.; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U.; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Appel, J.; /Fermilab; Apresyan, A.; /Purdue U. /Waseda U.

    2010-04-01T23:59:59.000Z

    The collection of a large number of B hadron decays to hadronic final states at the CDF II detector is possible due to the presence of a trigger that selects events based on track impact parameters. However, the nature of the selection requirements of the trigger introduces a large bias in the observed proper decay time distribution. A lifetime measurement must correct for this bias and the conventional approach has been to use a Monte Carlo simulation. The leading sources of systematic uncertainty in the conventional approach are due to differences between the data and the Monte Carlo simulation. In this paper they present an analytic method for bias correction without using simulation, thereby removing any uncertainty between data and simulation. This method is presented in the form of a measurement of the lifetime of the B{sup -} using the mode B{sup -} {yields} D{sup 0}{pi}{sup -}. The B{sup -} lifetime is measured as {tau}{sub B{sup -}} = 1.663 {+-} 0.023 {+-} 0.015 ps, where the first uncertainty is statistical and the second systematic. This new method results in a smaller systematic uncertainty in comparison to methods that use simulation to correct for the trigger bias.

  19. Reliability Analysis of the Trigger Synchronisation and Distribution System of the LHC Beam Dumping System

    E-Print Network [OSTI]

    Filippini, R

    2013-01-01T23:59:59.000Z

    The Trigger Synchronisation and Distribution System (TSDS) is one of the core components of the LHC Beam Dumping System and an essential element to guarantee that operation with the beam is always safe. The most critical failure of the TSDS is the missed trigger and re-trigger of at least 2 MKD magnets. This report presents the modelling and analysis of the likelihood of the TSDS to develop such a failure scenario during operation. The analysis returns the Safety Integrity Level (SIL) for the TSDS, and the list of the most important contributors. Sensitivity analysis is performed with respect to the failure parameters and with respect to failure dependencies among components that are in the redundant sets. This includes a study of the common cause failures that are in the TSDS architecture. The results in terms of SIL for the TSDS will be compared to the SIL for the previous architecture which was operational until the Long Shutdown 1. Recommendations in order to obtain higher safety by design will also be gi...

  20. Highly coherent electron beam from a laser-triggered tungsten needle tip

    E-Print Network [OSTI]

    Ehberger, Dominik; Eisele, Max; Krüger, Michael; Noe, Jonathan; Högele, Alexander; Hommelhoff, Peter

    2014-01-01T23:59:59.000Z

    We report on a quantitative measurement of the spatial coherence of electrons emitted from a sharp metal needle tip. We investigate the coherence in photoemission using near-ultraviolet laser triggering with a photon energy of 3.1 eV and compare it to DC-field emission. A carbon-nanotube is brought in close proximity to the emitter tip to act as an electrostatic biprism. From the resulting electron matter wave interference fringes we deduce an upper limit of the effective source radius both in laser-triggered and DC-field emission mode, which quantifies the spatial coherence of the emitted electron beam. We obtain $(0.80\\pm 0.05)\\,$nm in laser-triggered and $(0.55\\pm 0.02)\\,$nm in DC-field emission mode, revealing that the outstanding coherence properties of electron beams from needle tip field emitters are largely maintained in laser-induced emission. In addition, the relative coherence width of 0.36 of the photoemitted electron beam is the largest observed so far. The preservation of electronic coherence du...

  1. The readiness of ATLAS Trigger-DAQ system for the second LHC run

    E-Print Network [OSTI]

    Rammensee, Michael; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    After its first shutdown, LHC will provide pp collisions with increased luminosity and energy. In the ATLAS experiment, the Trigger and Data Acquisition (TDAQ) system has been upgraded to deal with the increased event rates. The updated system is radically different from the previous implementation, both in terms of architecture and expected performance. The main architecture has been reshaped in order to profit from the technological progress and to maximize the flexibility and efficiency of the data selection process. The trigger system in ATLAS 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. The pre-existing two-level software filtering, known as L2 and the Event Filter, are now merged into a single process, performing incremental data collection and analysis. This design has many advantages, among which are: the radical simplification of the architec...

  2. The ATLAS Trigger Core Configuration and Execution System in Light of the ATLAS Upgrade for LHC Run 2

    E-Print Network [OSTI]

    Heinrich, Lukas; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    During the 2013/14 shutdown of the Large Hadron Collider (LHC) the ATLAS first level trigger (L1) and the data acquisition system (DAQ) were substantially upgraded to cope with the increase in luminosity and collision multiplicity, expected to be delivered by the LHC in 2015. Upgrades were performed at both the L1 stage and the single combined subsequent high level trigger (HLT) stage that has been introduced to replace the two-tiered HLT stage used in Run 1. Because of these changes, the HLT execution framework and the trigger configuration system had to be upgraded. Also, tools and data content were adapted to the new ATLAS analysis model.

  3. Physically based modeling of rainfall-triggered landslides: a case study in the Luquillo forest, Puerto Rico

    E-Print Network [OSTI]

    Arnone, E.

    This paper presents the development of a rainfall-triggered landslide module within an existing physically based spatially distributed ecohydrologic model. The model, tRIBS-VEGGIE (Triangulated Irregular Networks-based ...

  4. Proceedings of ICRC 2001: 773 c Copernicus Gesellschaft 2001 Implementation of the first level trigger for the auger observatory

    E-Print Network [OSTI]

    (Suomij¨arvi, 2001) powered by solar panels. The station electronics communicates with the observatory delivery schedule, power consump- tion, functionality, and cost goals. This paper discusses the trigger

  5. 6/2/12 NCBI Blast:Nucleotide Sequence (3118 letters) 1/7www.ncbi.nlm.nih.gov/blast/Blast.cgi

    E-Print Network [OSTI]

    Hickman, Mark

    6/2/12 NCBI Blast:Nucleotide Sequence (3118 letters) 1/7www579S1013 Nucleotide Sequence (3118 letters) nr All GenBank+EMBL+DDBJ+PDB sequences (but no EST, STS for risk assessment #12;6/2/12 NCBI Blast:Nucleotide Sequence (3118 letters) 2/7www

  6. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface

    E-Print Network [OSTI]

    Brown, Michael E.

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface are likely craters. Accepted for publication in Geophysical Research Letters. Copyright 2004 American Geophysical Union. Further re- production or electronic distribution is not permitted. 1. Introduction

  7. THE KINEMATICS AND PLASMA PROPERTIES OF A SOLAR SURGE TRIGGERED BY CHROMOSPHERIC ACTIVITY IN AR11271

    SciTech Connect (OSTI)

    Kayshap, P.; Srivastava, Abhishek K. [Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263 129 (India)] [Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263 129 (India); Murawski, K., E-mail: kmur@kft.umcs.lublin.pl [Group of Astrophysics, UMCS, ul. Radziszewskiego 10, 20-031 Lublin (Poland)

    2013-01-20T23:59:59.000Z

    We observe a solar surge in NOAA AR11271 using the Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly 304 A image data on 2011 August 25. The surge rises vertically from its origin up to a height of Almost-Equal-To 65 Mm with a terminal velocity of Almost-Equal-To 100 km s{sup -1}, and thereafter falls and fades gradually. The total lifetime of the surge was Almost-Equal-To 20 minutes. We also measure the temperature and density distribution of the observed surge during its maximum rise and find an average temperature and a density of 2.0 MK and 4.1 Multiplication-Sign 10{sup 9} cm{sup -3}, respectively. The temperature map shows the expansion and mixing of cool plasma lagging behind the hot coronal plasma along the surge. Because SDO/HMI temporal image data do not show any detectable evidence of significant photospheric magnetic field cancellation for the formation of the observed surge, we infer that it is probably driven by magnetic-reconnection-generated thermal energy in the lower chromosphere. The radiance (and thus the mass density) oscillations near the base of the surge are also evident, which may be the most likely signature of its formation by a reconnection-generated pulse. In support of the present observational baseline of the triggering of the surge due to chromospheric heating, we devise a numerical model with conceivable implementation of the VAL-C atmosphere and a thermal pulse as an initial trigger. We find that the pulse steepens into a slow shock at higher altitudes which triggers plasma perturbations exhibiting the observed features of the surge, e.g., terminal velocity, height, width, lifetime, and heated fine structures near its base.

  8. Starbursts and the triggering of the activity in nearby powerful radio galaxies

    E-Print Network [OSTI]

    C. Tadhunter; T. G. Robinson; R. M. Gonzalez Delgado; K. Wills; R. Morganti

    2004-10-05T23:59:59.000Z

    We present high quality long-slit spectra for three nearby powerful radio galaxies 3C293, 3C305, PKS1345+12. These were taken with the aim of characterising the young stellar populations (YSP), and thereby investigating the evolution of the host galaxies, as well as the events that triggered the activity. Isochrone spectral synthesis modelling of the wide wavelength coverage spectra of nuclear and off-nuclear continuum-emitting regions have been used to estimate the ages, masses and luminosities of the YSP component, taking full account of reddening effects and potential contamination by activity-related components. We find that the YSP make a substantial contribution to the continuum flux in the off-nuclear regions on a radial scale of 1 - 20kpc in all three objects. Moreover, in two objects we find evidence for reddened post-starburst stellar populations in the near-nuclear regions of the host galaxies. The YSP are relatively old (0.1- 2Gyr), massive and make up a large proportion (~1 - 50%) of the total stellar mass in the regions of galaxies sampled by the observations. Overall, these results are consistent with the idea that AGN activity in some radio galaxies is triggered by major gas-rich mergers. Therefore, these radio galaxies form part of the subset of early-type galaxies that is evolving most rapidly in the local universe. Intriguingly, the results also suggest that the radio jets are triggered relatively late in the merger sequence, and that there is an evolutionary link between radio galaxies and luminous/ultra-luminous infrared galaxies.

  9. An Optimization of the FPGA Based Wavelet Trigger in Radio Detection of Cosmic Rays

    E-Print Network [OSTI]

    Zbigniew Szadkowski for the Pierre Auger Collaboration

    2014-06-04T23:59:59.000Z

    Experiments that observe coherent radio emission from extensive air showers induced by ultra-high energy cosmic rays are designed for a detailed study of the development of the electromagnetic part of air showers. Radio detectors can operate with 100% up time as e.g. surface detectors based on water-Cherenkov tanks. They are being developed for ground-based experiments (e.g. the Pierre Auger Observatory) as another type of air shower detector in addition to the fluorescence detectors, which operate with only ~10% of duty in dark nights. The radio signals from air showers are caused by the coherent emission due to geomagnetic radiation and charge excess processes. Currently used self-triggers in radio detectors often generate a dense stream of data, which is analyzed afterwards. Huge amounts of registered data requires a significant man-power for the off-line analysis. An improvement of the trigger efficiency becomes a relevant factor. In this work, Morlet wavelets with various scaling factors were used for an analysis of real data from the Auger Engineering Radio Array and for an optimization of the utilization of the resources in an FPGA. The wavelet analysis showed that the power of events is concentrated mostly in a limited range of the frequency spectrum (consistent with a range imposed by the input analog band-pass filter). However, we found several events with suspicious spectral characteristics, where the signal power is spread over the full band-width sampled by a 200 MHz digitizer with significant contribution of very high and very low frequencies. These events may not origin from cosmic ray showers but can be human-made contaminations. The engine of the wavelet analysis can be implemented into the modern powerful FPGA and can remove suspicious events on-line to reduce the trigger rate.

  10. Gamma Ray Burst triggering Supernova Explosion (and other effects on neighbouring stars)

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun

    2010-09-28T23:59:59.000Z

    The initial burst of a gamma ray burst (GRB) is usually followed by a longer-lived afterglow emitted at longer wavelengths. The evidence for a physical connection between GRBs and core collapse supernovae (SN) has increased since the discovery of GRB afterglows. So far SN signatures have been found in only a few GRBs. Here we propose the possibility of a GRB triggering the collapse of a WR or RG star in a binary system producing a SN, and typical signatures. We also look at the effects of GRBs on MS and WD stars in the neighbourhood. The possibility of GRBs retarding star formation in an interstellar cloud is also discussed.

  11. Feasibility of using neural networks as a level 2 calorimeter trigger for jet tagging

    SciTech Connect (OSTI)

    Handler, T.; Neis, E. [Tennessee Univ., Knoxville, TN (United States). Dept. of Physics; Glover, C.; Gabriel, T.; Saini, S. [Oak Ridge National Lab., TN (United States)

    1992-12-31T23:59:59.000Z

    Several of expected decay modes of the Higgs particle will result in jet formation. We propose to incorporate a second level trigger into the SDC detector, using neural network VSLI hardware, to tag such Higgs decay modes. The input to the neural network will be the energy depositions in both the barrel and endcap regions of the calorimeter. The neural network`s output would be a value representing the degree of correlation between the observed energy distribution and the type of physical scattering that has occurred. Preliminary results indicate that neural networks may be of use in tagging jet decays of the Higgs particle.

  12. Feasibility of using neural networks as a level 2 calorimeter trigger for jet tagging

    SciTech Connect (OSTI)

    Handler, T.; Neis, E. (Tennessee Univ., Knoxville, TN (United States). Dept. of Physics); Glover, C.; Gabriel, T.; Saini, S. (Oak Ridge National Lab., TN (United States))

    1992-01-01T23:59:59.000Z

    Several of expected decay modes of the Higgs particle will result in jet formation. We propose to incorporate a second level trigger into the SDC detector, using neural network VSLI hardware, to tag such Higgs decay modes. The input to the neural network will be the energy depositions in both the barrel and endcap regions of the calorimeter. The neural network's output would be a value representing the degree of correlation between the observed energy distribution and the type of physical scattering that has occurred. Preliminary results indicate that neural networks may be of use in tagging jet decays of the Higgs particle.

  13. INITIATORS AND TRIGGERING CONDITIONS FOR ADAPTIVE AUTOMATION IN ADVANCED SMALL MODULAR REACTORS

    SciTech Connect (OSTI)

    Katya L Le Blanc; Johanna h Oxstrand

    2014-04-01T23:59:59.000Z

    It is anticipated that Advanced Small Modular Reactors (AdvSMRs) will employ high degrees of automation. High levels of automation can enhance system performance, but often at the cost of reduced human performance. Automation can lead to human out-of the loop issues, unbalanced workload, complacency, and other problems if it is not designed properly. Researchers have proposed adaptive automation (defined as dynamic or flexible allocation of functions) as a way to get the benefits of higher levels of automation without the human performance costs. Adaptive automation has the potential to balance operator workload and enhance operator situation awareness by allocating functions to the operators in a way that is sensitive to overall workload and capabilities at the time of operation. However, there still a number of questions regarding how to effectively design adaptive automation to achieve that potential. One of those questions is related to how to initiate (or trigger) a shift in automation in order to provide maximal sensitivity to operator needs without introducing undesirable consequences (such as unpredictable mode changes). Several triggering mechanisms for shifts in adaptive automation have been proposed including: operator initiated, critical events, performance-based, physiological measurement, model-based, and hybrid methods. As part of a larger project to develop design guidance for human-automation collaboration in AdvSMRs, researchers at Idaho National Laboratory have investigated the effectiveness and applicability of each of these triggering mechanisms in the context of AdvSMR. Researchers reviewed the empirical literature on adaptive automation and assessed each triggering mechanism based on the human-system performance consequences of employing that mechanism. Researchers also assessed the practicality and feasibility of using the mechanism in the context of an AdvSMR control room. Results indicate that there are tradeoffs associated with each mechanism, but that some are more applicable to the AdvSMR domain. The two mechanisms that consistently improve performance in laboratory studies are operator initiated adaptive automation based on hierarchical task delegation and the Electroencephalogram(EEG) –based measure of engagement. Current EEG methods are intrusive and require intensive analysis; therefore it is not recommended for an AdvSMR control rooms at this time. Researchers also discuss limitations in the existing empirical literature and make recommendations for further research.

  14. Letter Report: Looking Ahead at Nuclear Fuel Resources

    SciTech Connect (OSTI)

    J. Stephen Herring

    2013-09-01T23:59:59.000Z

    The future of nuclear energy and its ability to fulfill part of the world’s energy needs for centuries to come depend on a reliable input of nuclear fuel, either thorium or uranium. Obviously, the present nuclear fuel cycle is completely dependent on uranium. Future thorium cycles will also depend on 235U or fissile isotopes separated from used fuel to breed 232Th into fissile 233U. This letter report discusses several emerging areas of scientific understanding and technology development that will clarify and enable assured supplies of uranium and thorium well into the future. At the most fundamental level, the nuclear energy community needs to appreciate the origins of uranium and thorium and the processes of planetary accretion by which those materials have coalesced to form the earth and other planets. Secondly, the studies of geophysics and geochemistry are increasing understanding of the processes by which uranium and thorium are concentrated in various locations in the earth’s crust. Thirdly, the study of neutrinos and particularly geoneutrinos (neutrinos emitted by radioactive materials within the earth) has given an indication of the overall global inventories of uranium and thorium, though little indication for those materials’ locations. Crustal temperature measurements have also given hints of the vertical distribution of radioactive heat sources, primarily 238U and 232Th, within the continental crust. Finally, the evolving technologies for laser isotope separation are indicating methods for reducing the energy input to uranium enrichment but also for tailoring the isotopic vectors of fuels, burnable poisons and structural materials, thereby adding another tool for dealing with long-term waste management.

  15. Post-Closure Inspection Letter Report for Corrective Action Units on the Nevada National Security Site

    SciTech Connect (OSTI)

    Boehleke, R. F.

    2014-05-06T23:59:59.000Z

    This letter serves as the post-closure inspection letter report for Corrective Action Units (CAUs) on the Nevada National Security Site for calendar year 2013. The inspections identified maintenance and repair is required at the following sites: sign and/or fence repair is necessary at CAUs 113, 137, 139, 140, 143, 262, 370, 371, 372, 374, 476, 478, 529, 542, and 560; animal burrows were identified at CAU 547; and erosion was identified at CAUs 366, 367, 383, 551, and 574. In addition, the following use restrictions were removed during 2013 and will no longer be inspected in 2014: 165, 357, and 528.

  16. Acquisition Letter 2015-02- Revision of DOE O 350.1 and Special H Clause

    Broader source: Energy.gov [DOE]

    Acquisition Letter 2015-02 - Revision of Department of Energy (DOE) Order 350.1 and Special H Clause The purpose of Acquisition Letter (AL) 2015-02 is to communicate the revisions to Chapter VII, Risk Management and Insurance Programs of DOE Order 350.1, Contractor Human Resource Management Programs (approved on September 30, 2014), and require Contracting Officers to modify applicable contracts no later than January 31, 2015, to include the new STRIPES Special H clause which contains requirements formerly included in the Contractor Requirements Document (CRD) of Chapter VII.

  17. Letter from the Wind Program Director: May 2014 | Department of Energy

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

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

  18. Letter to NEAC to Review the Next Generation Nuclear Plant Activities |

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

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

  19. Audit Letter Report: OAS-L-11-01 | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA NewslettersPartnership1/08 Attendance List7-26 Audit LetterLetter

  20. Audit Letter Report: OAS-RA-L-10-02 | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA NewslettersPartnership1/08 Attendance List7-26 Audit LetterLetter2

  1. Audit Letter Report: OAS-RA-L-10-06 | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA NewslettersPartnership1/08 Attendance List7-26 Audit LetterLetter26

  2. Audit Letter Report: OAS-L-09-17 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName Affiliation Ahern,5 Audit Letter Report:Letter

  3. Audit Letter Report: OAS-RA-L-10-01 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName Affiliation Ahern,5 Audit LetterLetter Report:

  4. Audit Letter Report: OAS-RA-L-10-03 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName Affiliation Ahern,5 Audit LetterLetter

  5. Boosted object hardware trigger development and testing for the Phase I upgrade of the ATLAS Experiment

    E-Print Network [OSTI]

    Stark, Giordon Holtsberg; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The Global Feature Extraction (gFEX) module is a Level 1 jet trigger system planned for installation in ATLAS during the Phase 1 upgrade in 2018. The gFEX selects large-radius jets for capturing Lorentz-boosted objects by means of wide-area jet algorithms refined by subjet information. The architecture of the gFEX permits event-by-event local pile-up suppression for these jets using the same subtraction techniques developed for offline analyses. The gFEX architecture is also suitable for other global event algorithms such as missing transverse energy (MET), centrality for heavy ion collisions, and "jets without jets". The gFEX will use 4 processor FPGAs to perform calculations on the incoming data and a Hybrid APU-FPGA for slow control of the module. The gFEX is unique in both design and implementation and substantially enhance the selectivity of the L1 trigger and increases sensitivity to key physics channels.

  6. Hydrogen-Triggered Type I X-ray Bursts in a Two-Zone Model

    E-Print Network [OSTI]

    Randall L. Cooper; Ramesh Narayan

    2007-02-01T23:59:59.000Z

    We use the two-zone model of Cooper & Narayan to study the onset and time evolution of hydrogen-triggered type I X-ray bursts on accreting neutron stars. At the lowest accretion rates, thermally unstable hydrogen burning ignites helium as well and produces a mixed hydrogen and helium burst. For somewhat higher accretion rates, thermally unstable hydrogen burning does not ignite helium and thus triggers only a weak hydrogen flash. The peak luminosities of weak hydrogen flashes are typically much lower than the accretion luminosity. These results are in accord with previous theoretical work. We find that a series of weak hydrogen flashes generates a massive layer of helium that eventually ignites in an energetic pure helium flash. Although previously conjectured, this is the first time such bursting behavior has been actually demonstrated in a theoretical model. For yet higher accretion rates, hydrogen burning is thermally stable and thus steadily generates a layer of helium that ultimately ignites in a pure helium flash. We find that, for a narrow range of accretion rates between the mixed hydrogen and helium burst and weak hydrogen flash regimes, unstable hydrogen burning ignites helium only after a short series of weak hydrogen flashes has generated a sufficiently deep layer of helium. These bursts have fluences that are intermediate between those of normal mixed hydrogen and helium bursts and energetic pure helium flashes.

  7. 1994 Triggered Lightning Test Program: Measured responses of a reinforced concrete building under direct lightning attachments

    SciTech Connect (OSTI)

    Schnetzer, G.H.; Chael, J.; Davis, R. [Sandia National Labs., Albuquerque, NM (United States); Fisher, R.J.; Magnotti, P.J. [Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ (United States)

    1995-08-01T23:59:59.000Z

    A rocket-triggered lightning test was carried out during the summer of 1994 on a specially designed steel reinforced concrete test building located at Ft. McClellan, Alabama. Currents, voltages, and magnetic fields were measured at 24 instrumented locations during 42 return strokes triggered to designated points on the structure and its lightning protection systems. As was found during an earlier similar lightning test of an earth covered munitions storage building, the buried power service conduits carried a much larger fraction of incident stroke current away from the building than did the intended grounding elements of the lightning protection system. Electrical breakdown and subsequent arcing occurred repeatedly to create dominant current paths to earth that were not accounted for in pretest linear modeling. Potential hazard level transient voltages, surprisingly more resistive than inductive in nature, were recorded throughout the structure. Also surprisingly, strikes to a single grounded protection mast system resulted in internal environments that were generally comparable to those occurring during strikes to roof-mounted air terminals. A description of the test structure, experimental procedures, and a full set of the resultant data are presented in this two-volume report.

  8. Minimum Bias Trigger Scintillators for ATLAS: Commissioning and Run 2 Initial Operation

    E-Print Network [OSTI]

    Dano Hoffmann, Maria; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    The Minimum Bias Trigger Scintillators (MBTS) delivered the primary trigger for selecting events from low luminosity proton-proton, lead-lead and lead-proton collisions with the smallest possible bias during LHC Run 1 (2009-2013). Similarly, the MBTS will select events for the first Run 2 physics measurements, for instance charge multiplicity, proton-proton cross section, rapidity gap measurements, etc. at the unprecedented 13 TeV center of mass energy of proton-proton collisions. We will review the upgrades to the MBTS detector that have been implemented during the 2013-2014 shutdown. New scintillators have been installed to replace the radiation damaged ones, a modified optical readout scheme have been adopted to increase the light yield and an improved data acquisition chain has been used to cope with the few issues observed during Run 1 operations. Since late 2014, MBTS have been commissioned during cosmic data taking, first LHC beam splashes and single beam LHC fills. The goal is to have a fully commissi...

  9. LETTER doi:10.1038/nature12671 The trajectory, structure and origin of the

    E-Print Network [OSTI]

    Wiegert, Paul

    LETTER doi:10.1038/nature12671 The trajectory, structure and origin of the Chelyabinsk asteroidal of kilotons. Here we report an analysis of selected video records of the Chelyabinsk superbolide5 of 15. The bulk strength--the ability to resist breakage--of the Chelyabinsk asteroid, of about one megapascal

  10. LETTER TO THE EDITOR ORF-less and reverse-transcriptase-encoding group II

    E-Print Network [OSTI]

    Zimmerly, Steven

    with ORFs, and seven ORF-less group II introns were identified. These ORF-less introns also form two groupsLETTER TO THE EDITOR ORF-less and reverse-transcriptase-encoding group II introns in archaebacteria, with a pattern of homing into related group II intron ORFs LIXIN DAI and STEVEN ZIMMERLY Department of Biological

  11. Applied Mathematics Letters 22 (2009) 10291032 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Schmidhuber, Juergen

    2009-01-01T23:59:59.000Z

    compression was suggested in [4­6], where data compressors are applied to such problems as classification Mathematics Letters journal homepage: www.elsevier.com/locate/aml Using data compressors to construct order Received in revised form 31 January 2008 Accepted 31 January 2008 Keywords: Data compressors Kolmogorov

  12. ACADEMIC TRAINING FOR J-1 STUDENTS -5 SAMPLE ADVISOR'S LETTER FOR ACADEMIC TRAINING

    E-Print Network [OSTI]

    Mohan, Chilukuri K.

    ACADEMIC TRAINING FOR J-1 STUDENTS - 5 SAMPLE ADVISOR'S LETTER FOR ACADEMIC TRAINING must Services FROM: Name Title RE: Recommendation for Academic Training for ___________________________ DATE ____________________________ ______________________________________________________. This student has an opportunity to pursue academic training with the employer indicated below. I have discussed

  13. LETTER doi:10.1038/nature12267 Elastic energy storage in the shoulder and the

    E-Print Network [OSTI]

    Udgaonkar, Jayant B.

    #12;LETTER doi:10.1038/nature12267 Elastic energy storage in the shoulder and the evolution of high elastic energy storage and release at the shoulder. These features first appear together approximately 2. Elastic energy storage has been shown to be an important source of poweramplification formanyhigh

  14. LETTER doi:10.1038/nature10710 Tail-assisted pitch control in lizards, robots and

    E-Print Network [OSTI]

    LETTER doi:10.1038/nature10710 Tail-assisted pitch control in lizards, robots and dinosaurs Thomas in performance14,15 . Application of a control-theoretic framework could advance our general understanding angular momentum. To examine a known con- trolled tail response, we built a lizard-sized robot

  15. Europhysics Letters PREPRINT Influence of pore-scale disorder on viscous fingering during

    E-Print Network [OSTI]

    Toussaint, Renaud

    Europhysics Letters PREPRINT Influence of pore-scale disorder on viscous fingering during drainage formation. PACS. 47.55.Mh ­ Flows through porous media. Abstract. ­ We study viscous fingering during, an effective law v ( P)2 relates the average interface growth rate and the local pressure gradient. Viscous

  16. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 5, 2006 1 Time Reversal With MISO for Ultrawideband

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 5, 2006 1 Time Reversal With MISO applications. UWB multiple input­single output (MISO) is enabled by the use of the TR scheme. Two basic. Index Terms--Channel reciprocity, multiple input­single output (MISO), time reversal (TR), ultrawideband

  17. Regulatory Guidance Letter 88-14 SUBJECT: Applicability of Section 404 to Piles

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Regulatory Guidance Letter 88-14 SUBJECT: Applicability of Section 404 to Piles DATE: November 7, 1988 EXPIRES: December 31, 1990 The Corps of Engineers has a longstanding policy that piles do not constitute fill material and that placing piles does not constitute a discharge of fill material. This policy

  18. Regulatory Guidance Letter 87-08 SUBJECT: Testing Requirements for Dredged Material

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Regulatory Guidance Letter 87-08 SUBJECT: Testing Requirements for Dredged Material Evaluations that "The district engineer will review applications for permits for the discharge of dredged or fill)." The guidelines at 40 CFR 230.10(c) state in part that ".. no discharge of dredged or fill material shall

  19. 644 OPTICS LETTERS / Vol. 29, No. 6 / March 15, 2004 General ultrafast pulse measurement using the

    E-Print Network [OSTI]

    644 OPTICS LETTERS / Vol. 29, No. 6 / March 15, 2004 General ultrafast pulse measurement using the cross-correlation single-shot sonogram technique Derryck T. Reid and Jesus Garduno-Mejia Ultrafast technique offers exact pulse measurement and real-time pulse monitoring via an intuitive time

  20. forthcoming in Economic Letters Incidence of Federal and State Gasoline Taxes

    E-Print Network [OSTI]

    Perloff, Jeffrey M.

    concerns over high gasoline prices. As recently as April 2003, Congress argued over the merits of includingforthcoming in Economic Letters Incidence of Federal and State Gasoline Taxes Hayley Chouinarda, Berkeley, and member of the Giannini Foundation. Abstract The federal specific gasoline tax falls equally

  1. LETTER doi:10.1038/nature13202 Classical shear cracks drive the onset of dry frictional

    E-Print Network [OSTI]

    Fineberg, Jay

    LETTER doi:10.1038/nature13202 Classical shear cracks drive the onset of dry frictional motion Ilya contactsdefiningafrictionalinterface3,4 . Therearea varietyofviews on how best to describe the onset of dry frictional motion the interface. We investigated the onset of dry frictional motion by per- forming simultaneous high

  2. Surface Science Letters Spontaneous deposition of Pd on a Ru(0 0 0 1) surface

    E-Print Network [OSTI]

    Brankovic, Stanko R.

    deposition of Pd on a Pt(1 1 1) electrode, monolayer [3], or submonolayer [4,7] coverages were reportedSurface Science Letters Spontaneous deposition of Pd on a Ru(0 0 0 1) surface S.R. Brankovic, J. Mc March 2001 Abstract Spontaneous deposition of Pd on a Ru(0 0 0 1) single crystal surface has been

  3. How Letters of Credit Operate in International Commercial Transactions: An Introduction to the UPC

    E-Print Network [OSTI]

    Head, John W.

    2008-03-01T23:59:59.000Z

    'aul H. Vlshny, Letters of Lreaft - sin GUIDE TO lose-leaf) c xusing espc **a.c ,.c .ERMAN'S G (vol. 6A) ( . . - - . . -. , LAWS OF hap. 705 :cially on A;* ;.- r. LLLL, I., U. UlDE TO 1996) at 18 - MARCH 2008 THE JOURNAL OF THE KANSAS BAR...

  4. LETTER doi:10.1038/nature11718 Evaporative cooling of the dipolar hydroxyl radical

    E-Print Network [OSTI]

    direct cooling and cold-association techniques, evaporative cooling has not been achieved so far-temperature sensi- tivity of our spectroscopic thermometry technique. With evapora- tive cooling and a sufficientlyLETTER doi:10.1038/nature11718 Evaporative cooling of the dipolar hydroxyl radical Benjamin K

  5. Volume 156,number I CHEMICAL PHYSICS LETTERS 24 March 1989 PHOTOFRAGMENT ANGULAR DISTRIBUTIONS

    E-Print Network [OSTI]

    Zare, Richard N.

    Volume 156,number I CHEMICAL PHYSICS LETTERS 24 March 1989 PHOTOFRAGMENT ANGULAR DISTRIBUTIONS FROMJKM) eigenstate. For a proper analysis of the subsequent gas-gas or gas-surface collision experiments) photofragments, which are detected via a 2 + 1 REMPI process at the same wavelength used to cause

  6. Surface Science Letters Surface vibrations of a highly ordered low-density alkanethiol

    E-Print Network [OSTI]

    Sibener, Steven

    ; Surface structure, morphology, roughness, and topography; Vibrations of adsorbed molecules; Gold; LowSurface Science Letters Surface vibrations of a highly ordered low-density alkanethiol monolayer-energy surface vibrational structure of the 11:5 Â p 3 striped phase of 1-decanethiol (C10H21SH) chemi- sorbed

  7. IEEE ELECTRON DEVICE LETTERS, VOL. 22, NO. 12, DECEMBER 2001 565 Determining Dominant Breakdown

    E-Print Network [OSTI]

    del Alamo, Jesús A.

    -state breakdown [2]­[6]. Furthermore, different devices may suffer from dif- ferent breakdown mechanisms sidegate structures are not available. In this work we develop a novel, straight-forward approachIEEE ELECTRON DEVICE LETTERS, VOL. 22, NO. 12, DECEMBER 2001 565 Determining Dominant Breakdown

  8. LETTER doi:10.1038/nature10282 High plant diversity is needed to maintain ecosystem

    E-Print Network [OSTI]

    Minnesota, University of

    LETTER doi:10.1038/nature10282 High plant diversity is needed to maintain ecosystem services Forest , and there is consensus that this can decrease ecosystem functioning and services2­7 . It remains unclear, though, whether few8 or many9 of the species in an ecosystem are needed to sustain the provisioning of ecosystem

  9. LETTER Earth Planets Space, 61, 577580, 2009 Flares and the chromosphere

    E-Print Network [OSTI]

    Hudson, Hugh

    LETTER Earth Planets Space, 61, 577­580, 2009 Flares and the chromosphere Hugh S. Hudson1 limited to the "semi-empirical" models, based on 1D radiative-transfer physics. Such an approach omits dy energetics (Section 2), en- ergy build-up (Section 3), and energy release (Section 4), attempting to use

  10. Letter to the Editor The precautionary principle and wind-farm planning: Data

    E-Print Network [OSTI]

    Donázar, José A.

    a consequence of the less intensive monitoring of this species and of mortality in wind-farms throughout SpainLetter to the Editor The precautionary principle and wind-farm planning: Data scarcity does to our paper (Carrete et al., 2009) help to clarify issues in the field of wind energy planning, thus

  11. Letters to Analytical Chemistry Silver Nanoparticles on a Plastic Platform for

    E-Print Network [OSTI]

    Brolo, Alexandre G.

    Letters to Analytical Chemistry Silver Nanoparticles on a Plastic Platform for Localized Surface on plastics is described. The silver-nanopar- ticles-on-plastic sensor (SNOPS) was fabricated by chemi- cally modifying the surface of a common plastic, polyeth- yleneterephthalate

  12. Surface Science Letters P) reactions with small alkenes adsorbed on Rh, Au, and ice

    E-Print Network [OSTI]

    Sibener, Steven

    Surface Science Letters O(3 P) reactions with small alkenes adsorbed on Rh, Au, and ice K.D. Gibson the reaction of O(3 P) with 1- and 2-butene on the surface of Rh(111) and ice, and propene on the surface of Au(111) and amorphous ice and propene adsorbed on Au(111). These experiments were done at cryogenic

  13. September 15, 1997 / Vol. 22, No. 18 / OPTICS LETTERS 1433 Optical bistability induced by mirror

    E-Print Network [OSTI]

    Fang-Yen, Christopher

    September 15, 1997 / Vol. 22, No. 18 / OPTICS LETTERS 1433 Optical bistability induced by mirror, Cambridge, Massachusetts 02139 Received May 2, 1997 We have observed optical bistability caused in 106 (ppm) have been successfully measured. © 1997 Optical Society of America Optical bistability

  14. Earth and Planetary Science Letters 398 (2014) 4857 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Niu, Fenglin

    of Petroleum Resource and Prospecting, and Unconventional Natural Gas Institute, China University of Petroleum of Petroleum Resource and Prospecting, and Unconventional Natural Gas Institute, China University of PetroleumDirect Earth and Planetary Science Letters www.elsevier.com/locate/epsl Crustal structure beneath NE China

  15. LETTER Communicated by Peter Rowat Minimal Model for Intracellular Calcium Oscillations and

    E-Print Network [OSTI]

    Gielen, C.C.A.M.

    voltage-gated Ca2C channels in the plasma membrane. The Ca2C oscillations in the Xenopus melanotrope showLETTER Communicated by Peter Rowat Minimal Model for Intracellular Calcium Oscillations in frequency, shape, and amplitude of Ca2C oscillations in the neuroendocrine melanotrope cell of Xenopus

  16. LETTER doi:10.1038/nature10067 A graphene-based broadband optical modulator

    E-Print Network [OSTI]

    Wang, Feng

    LETTER doi:10.1038/nature10067 A graphene-based broadband optical modulator Ming Liu1 *, Xiaobo Yin- integrated electroabsorption modulator based on monolayer graphene. By electrically tuning the Fermi level of the graphene sheet, we demonstrate modulation of the guided light at frequencies over 1 GHz, together

  17. IEEE SIGNAL PROCESSING LETTERS, VOL. 11, NO. 9, SEPTEMBER 2004 725 Speech Enhancement Using a Noncausal

    E-Print Network [OSTI]

    Cohen, Israel

    IEEE SIGNAL PROCESSING LETTERS, VOL. 11, NO. 9, SEPTEMBER 2004 725 Speech Enhancement Using--Parameter estimation, speech enhancement, time- frequency analysis. I. INTRODUCTION AN IMPORTANT parameter of numerous. However, the performance of the corresponding speech enhancement algorithm, compared with that resulting

  18. 1526 OPTICS LETTERS / Vol. 21, No. 19 / October 1, 1996 Phase-shifting point diffraction interferometer

    E-Print Network [OSTI]

    Bokor, Jeffrey

    1526 OPTICS LETTERS / Vol. 21, No. 19 / October 1, 1996 Phase-shifting point diffraction interferometer H. Medecki Center for X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California, Berkeley, Berkeley, California 94720 K. A. Goldberg Center for X-Ray Optics, Lawrence Berkeley National

  19. 832 OPTICS LETTERS / Vol. 25, No. 11 / June 1, 2000 Simultaneous optical wavelength interchange with a

    E-Print Network [OSTI]

    Sheridan, Jennifer

    832 OPTICS LETTERS / Vol. 25, No. 11 / June 1, 2000 Simultaneous optical wavelength interchange January 21, 2000 We present a theoretical analysis for simultaneous optical wavelength interchange and isolation of a pair of collinear input optical signals by use of two concurrent difference

  20. 2094 OPTICS LETTERS / Vol. 28, No. 21 / November 1, 2003 Fundamental and vortex solitons in a

    E-Print Network [OSTI]

    Yang, Jianke

    2094 OPTICS LETTERS / Vol. 28, No. 21 / November 1, 2003 Fundamental and vortex solitons in a two-dimensional optical lattice Jianke Yang Department of Mathematics and Statistics, University of Vermont, Burlington-dimensional optically induced waveguide array are reported. In the strong localization regime the fundamental soliton

  1. LETTER doi:10.1038/nature12877 Worldwide acceleration of mountain erosion under a

    E-Print Network [OSTI]

    LETTER doi:10.1038/nature12877 Worldwide acceleration of mountain erosion under a cooling climate glaciers throughout the Pliocene and Pleistocene epochs10,11 . As a consequence of these oscillations fission track, zircon (U­Th)/He and zircon fission track, which have approximate closuretemperaturesof70u

  2. Green functors Recall that the letter R denotes a commutative and associative ring with

    E-Print Network [OSTI]

    Bouc, Serge

    Green functors Recall that the letter R denotes a commutative There are (at least) two equivalent definitions of Green functors for G over R. 1.1. Using the poset of subgroups of G. This definition of Green func- tors uses the poset of subgroups of G. It goes back to Green

  3. LETTER doi:10.1038/nature09985 Speciesarea relationships always overestimate

    E-Print Network [OSTI]

    He, Fangliang

    LETTER doi:10.1038/nature09985 Species­area relationships always overestimate extinction rates from. The most widely used indirect method is to estimate extinction rates by reversing the species (SAR) and when extrapolating species extinction from habitat loss. The key mathematical result

  4. CREDIT:PHOTOS.COM LETTERS I BOOKS I POLICY FORUM I EDUCATION FORUM I PERSPECTIVES

    E-Print Network [OSTI]

    Museo Nacional de Ciencias Naturales

    -constrained peak by2020,thenthatpoliticalfactorsmustbetakenintoaccountinadis- cussion of peak oil production deforestation 985 Diversity matters LETTERS When the Oil Supply Runs Out THE ARTICLE "THE LOOMING OIL CRISIS, and finally concluding that there is so much uncertainty that "predicting the peak may not be worthwhile

  5. GEOPHYSICAL RESEARCH LETTERS, VOL. , NO. , PAGES 14, Three-dimensional energetic ion sounding of the

    E-Print Network [OSTI]

    ,4 Abstract. We present new results using energetic parti- cles to remotely sound the highGEOPHYSICAL RESEARCH LETTERS, VOL. , NO. , PAGES 1­4, Three-dimensional energetic ion sounding present a new technique to remotely sense the magnetopause in three dimensions as a function of time

  6. Surface Science Letters Self-assembled growth of ordered Ge nanoclusters on

    E-Print Network [OSTI]

    Gao, Hongjun

    Surface Science Letters Self-assembled growth of ordered Ge nanoclusters on the Si(1 1 1)-(7 Â 7-assembled growth of submonolayer Ge on the Si(1 1 1)-(7 Â 7) surface grown by solid phase epitaxy has been studied using scanning tunneling microscopy. Ordered Ge nanoclusters on the surface are formed by the deposition

  7. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 9, SEPTEMBER 2008 3273 Transactions Letters

    E-Print Network [OSTI]

    Qin, Xiao

    efficient and reliable data transmission, especially real time data transmission, over wireless networks Letters Improving Security of Real-Time Wireless Networks Through Packet Scheduling Xiao Qin, Mohamed--Modern real-time wireless networks require high security level to assure confidentiality of information stored

  8. LETTER doi:10.1038/nature12006 Deglacial pulses of deep-ocean silicate into the

    E-Print Network [OSTI]

    Gilli, Adrian

    LETTER doi:10.1038/nature12006 Deglacial pulses of deep-ocean silicate into the subtropical North. Biogenic opal export in the low-latitude ocean relies on silicate from the underlying thermocline are consistent with a strong deglacial reduction in the formation of silicate-poor glacial North Atlantic

  9. College of Letters and Science Center for Latin American and Caribbean Studies

    E-Print Network [OSTI]

    Saldin, Dilano

    College of Letters and Science Center for Latin American and Caribbean Studies 2012 Professional Development Opportunity for Wisconsin K-12 teachers The Center for Latin American and Caribbean Studies (CLACS for Latin American and Caribbean Studies) Vanderbilt University (Center for Latin American Studies) Yale

  10. FDA Exemption Letter, 78EL-01DOE by LSSG for GOCG Facilities

    Broader source: Energy.gov [DOE]

    Food and Drug Administration response to Department of Energy's request for clarification of the circumstances under which a DOE Government Owned Contractor Operated (GOCO) facility may be considered a laser manufacturer and subject to FDA laser manufacturer requirements and other points of interpretation of the FDA Exemption Letter, 78EL-01DOE (DOE exemption or exemption) by the LSSG for GOCG facilities.

  11. Volume 93A, number 4 PHYSICS LETTERS 10 January 1983 POISSON STRUCTURES OF SUPERCONDUCTORS

    E-Print Network [OSTI]

    Holm, Darryl D.

    Volume 93A, number 4 PHYSICS LETTERS 10 January 1983 POISSON STRUCTURES OF SUPERCONDUCTORS Darryl D of these equations to the dissipative case. Introduction. For superconductors, there are two phenomenological superconductor; hybrid microscopic and phenomenological approaches [4] ; and purely phenomenological approaches

  12. LETTER Communicated by Christopher Williams Prototype Classification: Insights from Machine Learning

    E-Print Network [OSTI]

    LETTER Communicated by Christopher Williams Prototype Classification: Insights from Machine-of-class prototype classification using algorithms from machine learning that satisfy a set of invariance properties. We report a simple yet general approach to express different types of linear classification

  13. Volume 125B, number 2,3 PHYSICS LETTERS 26 May 1983 DYON-AXION DYNAMICS

    E-Print Network [OSTI]

    Preskill, John

    Volume 125B, number 2,3 PHYSICS LETTERS 26 May 1983 DYON-AXION DYNAMICS Willy FISCHLER 1 Department between magnetic monopoles and axions induced by the Witten effect, and discuss the cosmo- logical implications of monopole-axion interactions. The discovery by Witten [1] that a magnetic mono- pole of minimal

  14. April 4, 2010 20:55 WSPC/INSTRUCTION FILE ppl2010 Parallel Processing Letters

    E-Print Network [OSTI]

    Guerraoui, Rachid

    April 4, 2010 20:55 WSPC/INSTRUCTION FILE ppl2010 Parallel Processing Letters c World Scientific, Switzerland. Email: vin- cent.gramoli@epfl.ch 1 #12;April 4, 2010 20:55 WSPC/INSTRUCTION FILE ppl2010 2

  15. ensl-00156838,version1-22Jun2007 Europhysics Letters PREPRINT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ensl-00156838,version1-22Jun2007 Europhysics Letters PREPRINT Slow crack growth in polycarbonate the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. The specificity of fracture in polycarbonate films is the appearance of flame shaped macroscopic process zones

  16. IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 1, JANUARY 2013 127 Capacity of Zero-Outage Scheme

    E-Print Network [OSTI]

    Candan, Cagatay

    IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 1, JANUARY 2013 127 Capacity of Zero-Outage Scheme Under Imprecise Channel State Information C¸ a~gatay Candan Abstract--The capacity of zero-outage scheme-to-noise-ratio fluctuates and the scheme suffers from com- munication outages. Exact analytical expressions characterizing

  17. LETTER Communicated by Emilio Salinas Higher-Order Statistics of Input Ensembles and the Response

    E-Print Network [OSTI]

    LETTER Communicated by Emilio Salinas Higher-Order Statistics of Input Ensembles and the Response (Steinmetz et al., 2000; Salinas & Sejnowski, 2001). The effect of correlated synaptic input on the neuronal; Salinas & Sejnowski, 2000; Svirskis & Rinzel, 2000; Feng & Zhang, 2001; Stroeve & Gielen, 2001

  18. IEEE ELECTRON DEVICE LETTERS, VOL. 19, NO. 10, OCTOBER 1998 373 Terahertz Detector Utilizing

    E-Print Network [OSTI]

    Salama, Khaled

    IEEE ELECTRON DEVICE LETTERS, VOL. 19, NO. 10, OCTOBER 1998 373 Terahertz Detector Utilizing Two. This result shows the potential for developing a new family of electronics devices--plasma wave electronics devices--operating at terahertz frequencies. Index Terms--HEMT, plasma wave electronics, terahertz de

  19. Letters to the Editor Author(s): Joel E. Cohen and John Neter

    E-Print Network [OSTI]

    Cohen, Joel E.

    , Vol. 32, No. 1 (Feb., 1978), p. 39 Published by: American Statistical Association Stable URL: http@jstor.org. American Statistical Association is collaborating with JSTOR to digitize, preserve and extend accessLetters to the Editor Author(s): Joel E. Cohen and John Neter Source: The American Statistician

  20. Surface Science Letters Synthesis of well-ordered ultra-thin titanium oxide films

    E-Print Network [OSTI]

    Goodman, Wayne

    Surface Science Letters Synthesis of well-ordered ultra-thin titanium oxide films on Mo(112) M microscopy (STM); X-ray photoelectron spectroscopy (XPS); Titanium oxide; Surface structure, morphology oxide systems, titanium dioxide has served as the prototypical reducible 0039-6028/$ - see front matter

  1. 650 IEEE ELECTRON DEVICE LETTERS, VOL. 27, NO. 8, AUGUST 2006 Fully Elastic Interconnects on Nanopatterned

    E-Print Network [OSTI]

    650 IEEE ELECTRON DEVICE LETTERS, VOL. 27, NO. 8, AUGUST 2006 Fully Elastic Interconnects interconnects are re- quired for electronic skin. To date, the resistance of such thin-film interconnects has by only 60%, which is in close agreement with purely geometric deformation. Index Terms

  2. LETTER doi:10.1038/nature13173 Reconstructing lineage hierarchies of the distal lung

    E-Print Network [OSTI]

    Quake, Stephen R.

    LETTER doi:10.1038/nature13173 Reconstructing lineage hierarchies of the distal lung epithelium The mammalian lung is a highly branched network in which the distal regions of the bronchial tree transform-mapping, the mechanisms that control the progression of lung progenitors along distinct lineages into mature alveolar cell

  3. To be submitted to ApJ Letters Particle acceleration in stressed coronal magnetic fields

    E-Print Network [OSTI]

    Vlahos, Loukas

    To be submitted to ApJ Letters Particle acceleration in stressed coronal magnetic fields R an analysis of particle acceleration in a model of the complex magnetic field environment in the flaring solar a relativistic test particle code. It is shown that both ions and electrons are accelerated readily

  4. IEEE COMMUNICATIONS LETTERS, VOL. 14, NO. 5, MAY 2010 429 Fractional Bit Encoded Spatial Modulation (FBESM)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (FBE­SM) N. Serafimovski, M. Di Renzo, S. Sinanovi´c, R. Y. Mesleh, and H. Haas Abstract--In this Letter, we introduce fractional bit encoded (FBE)­spatial modulation (SM), which is a novel and more will show that FBE­SM can offer design flexibility and the desired trade­off in terms of attainable

  5. Tribology Letters 6 (1999) 159169 159 Spectromicroscopy of tribological films from engine oil additives.

    E-Print Network [OSTI]

    Gilbert, Pupa Gelsomina De Stasio

    antiwear additives in lubricating oils for over forty years [1]. ZDDP's act as antiwear agents by formingTribology Letters 6 (1999) 159­169 159 Spectromicroscopy of tribological films from engine oil generated from the commercial ZDDP, rubbed in base oil, show that the long chain polyphosphate is converted

  6. Systems & Control Letters 59 (2010) 8797 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Leonard, Naomi

    2010-01-01T23:59:59.000Z

    and behavioral economics experiments to investigate human decision making. The human subject makes a choice & Control Letters journal homepage: www.elsevier.com/locate/sysconle Convergence in human decision 2010 Keywords: Human decision making Two-alternative forced-choice task Win-stay, lose-switch model

  7. May 1, 2003 / Vol. 28, No. 9 / OPTICS LETTERS 701 Projected index computed tomography

    E-Print Network [OSTI]

    Bhargava, Rohit

    May 1, 2003 / Vol. 28, No. 9 / OPTICS LETTERS 701 Projected index computed tomography Adam M. Zysk Projected index computed tomography (PICT) is a new imaging technique that provides a computed recon structure is evident. Recently the tools of computed tomography were applied to optical microscopy

  8. Letter to the editor The bio-fuel debate and fossil energy use in palm oil

    E-Print Network [OSTI]

    Letter to the editor The bio-fuel debate and fossil energy use in palm oil production: a critique-fuels based on palm oil to re- duce greenhouse gas emissions, due account should be taken of carbon emissions fuel use in palm oil pro- duction, making a number of assumptions that I believe to be incorrect

  9. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 1 Assessment of Temperature and Humidity Changes

    E-Print Network [OSTI]

    Christopher, Sundar A.

    IEEEProof IEEEProof IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 1 Assessment of Temperature multiple satellite7 remote sensing data sets and meteorological information, we assess8 the distribution observed at some15 locations. Between the surface and 2-km level, temperature data16 show a cooling of 10

  10. Letter from the Office of Justice Programs to Program Grantees Dear Office of Justice Programs Grantee

    E-Print Network [OSTI]

    Farritor, Shane

    Letter from the Office of Justice Programs to Program Grantees Dear Office of Justice Programs Grantee: As a result of the Budget Control Act of 2011, the President signed the budget sequestration by about $110 million. We understand these reductions impact all of us, including our grantees

  11. Dissertation Fellowship for 2014-15 Dorothy F. Schmidt College of Arts and Letters

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Dissertation Fellowship for 2014-15 Dorothy F. Schmidt College of Arts and Letters The Ph to apply for a dissertation fellowship. The fellowship will provide a stipend and tuition waiver for the dissertation credits being taken. Eligibility criteria By the date of application, the applicant must have

  12. 26 September1997 ChemicalPhysicsLetters276(1997)316-324

    E-Print Network [OSTI]

    Reisler, Hanna

    ELSEVIER 26 September1997 ChemicalPhysicsLetters276(1997)316-324 CHEMICAL PHYSICS LETTERSResearchFacility,SandiaNationalLaboratories,Lioermore, CA 94550, USA Received20May 1997;in finalform9 June1997 Abstract The photodissoeiation of HNCO~) evolves over a small barrier on SI, estimated at 400-600 em- ~. © 1997 Elsevier Science B.V. 1

  13. 5 September 1997 Chemical Physics Letters 275 (1997) 491-493

    E-Print Network [OSTI]

    Miller, William H.

    ~!!: uCm ELSEVIER 5 September 1997 Chemical Physics Letters 275 (1997) 491-493 CHEMICAL PHYSICS of Chemistry, University,of California, Berkeley CA 94720-1460, USA Received 9 May 1997; in final form 30 June 1997 Abstract Earlier work [Chem. Phys. Lett. 206 (1993) 123] has derived an especially convenient

  14. IEEE COMMUNICATIONS LETTERS, VOL. 14, NO. 10, OCTOBER 2010 885 Cooperative Secret Communication with

    E-Print Network [OSTI]

    Tao, Meixia "Melissa"

    IEEE COMMUNICATIONS LETTERS, VOL. 14, NO. 10, OCTOBER 2010 885 Cooperative Secret Communication--Gaussian interference channel, secrecy capacity, power control. I. INTRODUCTION THE problem of secret communication key, provided that the receiver has a better channel than the eavesdropper. Recently, the secret

  15. LETTER TO THE EDITOR Regarding ``Meta-analysis and Causal Inference: A Case Study of Benzene

    E-Print Network [OSTI]

    California at Berkeley, University of

    LETTER TO THE EDITOR Regarding ``Meta-analysis and Causal Inference: A Case Study of Benzene of a causal association between non-Hodgkin lymphoma (NHL) and benzene and between NHL and petroleum refinery identified provide ``further evidence that benzene exposure causes NHL.'' However, his review of each

  16. IEEE COMMUNICATIONS LETTERS, TO APPEAR 1 Soft-Decision COVQ for Turbo-Coded AWGN

    E-Print Network [OSTI]

    Linder, Tamás

    IEEE COMMUNICATIONS LETTERS, TO APPEAR 1 Soft-Decision COVQ for Turbo-Coded AWGN and Rayleigh-decision channel-optimized vec- tor quantization (COVQ) scheme for Turbo-coded additive white Gaussian noise (AWGN) and Rayleigh fading chan- nels is proposed. The log likelihood ratio (LLR) gener- ated by the Turbo decoder

  17. 174 IEEE COMMUNICATIONS LETTERS, VOL. 8, NO. 3, MARCH 2004 Modified LMMSE Turbo Equalization

    E-Print Network [OSTI]

    Ping, Li

    174 IEEE COMMUNICATIONS LETTERS, VOL. 8, NO. 3, MARCH 2004 Modified LMMSE Turbo Equalization Sen a modified linear minimum mean square error (LMMSE) turbo equalization scheme that uses an augmented real retaining a complexity similar to that of the existing LMMSE turbo equalization scheme. Index Terms

  18. LETTER doi:10.1038/nature09407 Global metabolic impacts of recent climate warming

    E-Print Network [OSTI]

    Huey, Raymond B.

    LETTER doi:10.1038/nature09407 Global metabolic impacts of recent climate warming Michael E. Dillon and projected climate warming2,13,14 . Global warming is probably having profound and diverse effects phenology3,4 , community interactions5 , genetics3,6 and extinctions7 have been attributed to recent global

  19. LETTER doi:10.1038/nature12156 Signature of ocean warming in global fisheries catch

    E-Print Network [OSTI]

    Pauly, Daniel

    LETTER doi:10.1038/nature12156 Signature of ocean warming in global fisheries catch William W. L changes in sea surface temperature5 . This study shows that ocean warming has already affected global. Cheung1 , Reg Watson2 & Daniel Pauly3 Marine fishes and invertebrates respond to ocean warming through

  20. 146 OPTICS LETTERS / Vol. 4, No. 5 / May 1979 Photocounting distributions for exponentially

    E-Print Network [OSTI]

    Teich, Malvin C.

    emission, radiation damage in solids, and nuclear counting. They will also be useful in neurobiology146 OPTICS LETTERS / Vol. 4, No. 5 / May 1979 Photocounting distributions for exponentially decaying sources Malvin Carl Teich and Howard C. Card Columbia RadiationLaboratory, ColumbiaUniversity, New

  1. Regulatory Guidance Letter 87-05 SUBJECT: EIS Costs that can be Paid by the

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Regulatory Guidance Letter 87-05 SUBJECT: EIS Costs that can be Paid by the Applicant DATE: May 28 activities (FOAs) about whether or not the applicant can somehow pay the costs of EIS preparation in cases to the Corps for the Corps to prepare the EIS, the applicant can certainly bear a major part of the costs

  2. 292 IEEE COMMUNICATIONS LETTERS, VOL. 9, NO. 4, APRIL 2005 ISI-Free Pulses with

    E-Print Network [OSTI]

    Chaturvedi, A K

    292 IEEE COMMUNICATIONS LETTERS, VOL. 9, NO. 4, APRIL 2005 ISI-Free Pulses with Reduced Sensitivity the linear combination of two ISI free pulses, the Raised Cosine (RC) and the recently proposed Better Than there is a need for pulses that are ISI free and at the same time have low sensitivity to timing errors. One

  3. Medical Physics Letter Digital tomosynthesis of the chest for lung nodule detection: Interim

    E-Print Network [OSTI]

    Medical Physics Letter Digital tomosynthesis of the chest for lung nodule detection: Interim tomosynthesis for improving detectability of small lung nodules. Twenty-one patients under- going computed tomography CT to follow up lung nodules were consented and enrolled to receive an additional digital PA chest

  4. Earth and Planetary Science Letters 387 (2014) 252263 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Winckler, Gisela

    different geochemical tracers of eolian dust, 4 He, 232 Th and rare earth elements, in combination Elsevier B.V. All rights reserved. 1. Introduction Eolian dust is a major driver in the global climateEarth and Planetary Science Letters 387 (2014) 252­263 Contents lists available at Science

  5. SDSU General Catalog 2011-2012 257 In the College of Arts and Letters

    E-Print Network [OSTI]

    Gallo, Linda C.

    SDSU General Catalog 2011-2012 257 GEOG Geography In the College of Arts and Letters OFFICE: Storm, Marcelli, Skupin, Tsou Assistant Professors: Farley, Swanson Lecturers: Chagala, Osborn, Pohl on the earth's surface, land use patterns, urbanization, resource and energy usage, and environmental

  6. 256 SDSU General Catalog 2010-2011 In the College of Arts and Letters

    E-Print Network [OSTI]

    Gallo, Linda C.

    256 SDSU General Catalog 2010-2011 Geography In the College of Arts and Letters OFFICE: Storm Hall, Skupin, Tsou Assistant Professors: Biggs, Farley, Swanson Lecturers: Chagala, Osborn, Pohl on the earth's surface, land use patterns, urbanization, resource and energy usage, and environmental

  7. 262 SDSU General Catalog 2013-2014 In the College of Arts and Letters

    E-Print Network [OSTI]

    Gallo, Linda C.

    262 SDSU General Catalog 2013-2014 Geography In the College of Arts and Letters OFFICE: Geography: An, Biggs, Bosco, Farley, Marcelli Assistant Professors: Debbané, Levine, Swanson Lecturers: Herman as the arrangement of societies on the earth's surface, land use patterns, urbanization, resource and energy usage

  8. SDSU General Catalog 2012-2013 259 In the College of Arts and Letters

    E-Print Network [OSTI]

    Gallo, Linda C.

    SDSU General Catalog 2012-2013 259 GEOG Geography In the College of Arts and Letters OFFICE, Biggs, Bosco, Marcelli, Skupin Assistant Professors: Debbane, Farley, Levine, Swanson Lecturers: Chagala as the arrangement of societies on the earth's surface, land use patterns, urbanization, resource and energy usage

  9. Elevated temperature triggers human respiratory syncytial virus F protein six-helix bundle formation

    SciTech Connect (OSTI)

    Yunus, Abdul S.; Jackson, Trent P.; Crisafi, Katherine; Burimski, Irina; Kilgore, Nicole R.; Zoumplis, Dorian; Allaway, Graham P.; Wild, Carl T. [Panacos Pharmaceuticals, Inc., 209 Perry Parkway, Suite 7, Gaithersburg, MD 20877 (United States); Salzwedel, Karl, E-mail: salzwedelkd@niaid.nih.go [Panacos Pharmaceuticals, Inc., 209 Perry Parkway, Suite 7, Gaithersburg, MD 20877 (United States)

    2010-01-20T23:59:59.000Z

    Human respiratory syncytial virus (RSV) is a major cause of severe lower respiratory tract infection in infants, immunocompromised patients, and the elderly. The RSV fusion (F) protein mediates fusion of the viral envelope with the target cell membrane during virus entry and is a primary target for antiviral drug and vaccine development. The F protein contains two heptad repeat regions, HR1 and HR2. Peptides corresponding to these regions form a six-helix bundle structure that is thought to play a critical role in membrane fusion. However, characterization of six-helix bundle formation in native RSV F protein has been hindered by the fact that a trigger for F protein conformational change has yet to be identified. Here we demonstrate that RSV F protein on the surface of infected cells undergoes a conformational change following exposure to elevated temperature, resulting in the formation of the six-helix bundle structure. We first generated and characterized six-helix bundle-specific antibodies raised against recombinant peptides modeling the RSV F protein six-helix bundle structure. We then used these antibodies as probes to monitor RSV F protein six-helix bundle formation in response to a diverse array of potential triggers of conformational changes. We found that exposure of 'membrane-anchored' RSV F protein to elevated temperature (45-55 deg. C) was sufficient to trigger six-helix bundle formation. Antibody binding to the six-helix bundle conformation was detected by both flow cytometry and cell-surface immunoprecipitation of the RSV F protein. None of the other treatments, including interaction with a number of potential receptors, resulted in significant binding by six-helix bundle-specific antibodies. We conclude that native, untriggered RSV F protein exists in a metastable state that can be converted in vitro to the more stable, fusogenic six-helix bundle conformation by an increase in thermal energy. These findings help to better define the mechanism of RSV F-mediated membrane fusion and have important implications for the identification of therapeutic strategies and vaccines targeting RSV F protein conformational changes.

  10. [Printer Friendly] | [Contact us about this collection] American Music Edition records, 1920-1997

    E-Print Network [OSTI]

    -1963 Folder 3: Castelnuovo-Tedesco, Mario, 1954-1959 Folder 4: Cazden, Norman, 1963-1968 Folder 5: Cole Folder 17: Downes, Olin, 1938 Folder 18: Duke, Vernon, 1960 Folder 19: Dupriez, Christian, 1947

  11. The Upgrade Path from Legacy VME to VXS Dual Star Connectivity for Large Scale Data Acquisition and Trigger Systems

    SciTech Connect (OSTI)

    Cuevas, C; Barbosa, F J; Dong, H; Gu, W; Jastrzembski, E; Kaneta, S R; Moffitt, B; Nganga, N; Raydo, B J; Somov, A; Taylor, W M

    2011-10-01T23:59:59.000Z

    New instrumentation modules have been designed by Jefferson Lab and to take advantage of the higher performance and elegant backplane connectivity of the VITA 41 VXS standard. These new modules are required to meet the 200KHz trigger rates envisioned for the 12GeV experimental program. Upgrading legacy VME designs to the high speed gigabit serial extensions that VXS offers, comes with significant challenges, including electronic engineering design, plus firmware and software development issues. This paper will detail our system design approach including the critical system requirement stages, and explain the pipeline design techniques and selection criteria for the FPGA that require embedded Gigabit serial transceivers. The entire trigger system is synchronous and operates at 250MHz clock with synchronization signals, and the global trigger signals distributed to each front end readout crate via the second switch slot in the 21 slot, dual star VXS backplane. The readout of the buffered detector signals relies on 2eSST over the standard VME64x path at >200MB/s. We have achieved 20Gb/s transfer rate of trigger information within one VXS crate and will present results using production modules in a two crate test configuration with both VXS crates fully populated. The VXS trigger modules that reside in the front end crates, will be ready for production orders by the end of the 2011 fiscal year. VXS Global trigger modules are in the design stage now, and will be complete to meet the installation schedule for the 12GeV Physics program.

  12. Calorimeter-Based Triggers at the ATLAS Detector for Searches for Supersymmetry in Zero-Lepton Final States

    E-Print Network [OSTI]

    Alexander Mann

    2012-05-22T23:59:59.000Z

    This thesis consists of three closely related parts. An analysis of data recorded by the ATLAS detector in 2010 in proton-proton collisions at a center-of-mass energy of 7 TeV with an integrated luminosity of 33.4/pb is performed, searching for supersymmetric final states containing jets and missing transverse energy and no electrons or muons (zero-lepton channel). No excess over the Standard Model background expectation is observed. Using the CLs and PLR methods, exclusion limits are set in two different supergravity models. These considerably extend the excluded parameter ranges from earlier experiments. The rates and efficiencies of triggers based on combined signatures with jets plus missing transverse energy in ATLAS are studied, which are the primary triggers for the search for Supersymmetry in the zero-lepton channel. For the measurement of the efficiencies in data collected in 2010 and 2011, the bootstrap method is applied. Different sample triggers based on jets and missing transverse energy are compared and their efficiencies are measured. A reweighting approach is used to correct for the bias from the propagation of the uncertainties in the bootstrap method. A universal model is developed to describe the contribution of fake missing transverse energy from resolution effects to the rates of missing transverse energy triggers as function of the level of in-time pile-up, i.e. the number of concurrent proton-proton interactions. The input parameters are tuned to the properties of the ATLAS trigger system, and the model predictions are compared to measurements of trigger rates in ATLAS. Good agreement is found for low thresholds for which the rates are dominated by resolution effects, whereas the rates for higher thresholds are underestimated due to additional sources of fake and real missing transverse energy, which are not incorporated in the model.

  13. Electroluminescence from isolated defects in zinc oxide, towards electrically triggered single photon sources at room temperature

    E-Print Network [OSTI]

    Choi, Sumin; Gentle, Angus; Ton-That, Cuong; Phillips, Matthew R; Aharonovich, Igor

    2015-01-01T23:59:59.000Z

    Single photon sources are required for a wide range of applications in quantum information science, quantum cryptography and quantum communications. However, so far majority of room temperature emitters are only excited optically, which limits their proper integration into scalable devices. In this work, we overcome this limitation and present room temperature electrically triggered light emission from localized defects in zinc oxide (ZnO) nanoparticles and thin films. The devices emit at the red spectral range and show excellent rectifying behavior. The emission is stable over an extensive period of time, providing an important prerequisite for practical devices. Our results open up possibilities to build new ZnO based quantum integrated devices that incorporate solid-state single photon sources for quantum information technologies.

  14. Search for Very High Energy Emission from Satellite-triggered GRBs with the Milagro Observatory

    E-Print Network [OSTI]

    Parkinson, P M S; Atkins, R; Benbow, W; Berley, D; Blaufuss, E; Coyne, D G; De Young, T R; Dingus, B L; Dorfan, D E; Ellsworth, R W; Fleysher, L; Gisler, G; González, M M; Goodman, J A; Haines, T J; Hays, E; Hoffman, C M; Kelley, L A; Lansdell, C P; Linnemann, J T; McEnery, J E; Miller, R S; Mincer, A I; Morales, M F; Némethy, P; Noyes, D; Ryan, J M; Samuelson, F W; Saz-Parkinson, P M; Shoup, A; Sinnis, G; Smith, A J; Sullivan, G W; Williams, D A; Wilson, M E; Xu, X W; Yodh, G B

    2005-01-01T23:59:59.000Z

    The Milagro gamma-ray observatory employs a water Cherenkov detector to observe extensive air showers produced by high energy particles interacting in the Earth's atmosphere. Milagro has a wide field of view (2 sr) and high duty cycle (> 90%) making it an ideal all-sky monitor of the northern hemisphere in the 100 GeV to 100 TeV energy range. More than 45 satellite-triggered gamma-ray bursts (GRBs) have occurred in the field of view of Milagro since January 2000, with the rate of bursts increasing significantly with the launch of Swift. We discuss the most recent results of a search for very high energy (VHE) emission from these GRBs.

  15. Promiscuous Substrate Recognition in Folding and Assembly Activities of the Trigger Factor Chaperone

    SciTech Connect (OSTI)

    Martinez-Hackert, E.; Hendrickson, W

    2009-01-01T23:59:59.000Z

    Trigger factor (TF) is a molecular chaperone that binds to bacterial ribosomes where it contacts emerging nascent chains, but TF is also abundant free in the cytosol where its activity is less well characterized. In vitro studies show that TF promotes protein refolding. We find here that ribosome-free TF stably associates with and rescues from misfolding a large repertoire of full-length proteins. We identify over 170 members of this cytosolic Escherichia coli TF substrate proteome, including ribosomal protein S7. We analyzed the biochemical properties of a TF:S7 complex from Thermotoga maritima and determined its crystal structure. Thereby, we obtained an atomic-level picture of a promiscuous chaperone in complex with a physiological substrate protein. The structure of the complex reveals the molecular basis of substrate recognition by TF, indicates how TF could accelerate protein folding, and suggests a role for TF in the biogenesis of protein complexes.

  16. Laser triggered Z-pinch broadband extreme ultraviolet source for metrology

    SciTech Connect (OSTI)

    Tobin, I.; Lunney, J. G. [School of Physics, Trinity College Dublin, Dublin 2 (Ireland)] [School of Physics, Trinity College Dublin, Dublin 2 (Ireland); Juschkin, L. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland) [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Department of Physics, RWTH Aachen University, Steinbachstr. 15 D-52074 Aachen (Germany); Sidelnikov, Y. [ISAN Institute of Spectroscopy, Fizicheskaya Str. 5, Troitsk, Moscow Region 142190 (Russian Federation)] [ISAN Institute of Spectroscopy, Fizicheskaya Str. 5, Troitsk, Moscow Region 142190 (Russian Federation); O'Reilly, F.; Sokell, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland)] [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Sheridan, P. [Newlambda Technologies, UCD Science Centre North, Belfield, Dublin 4 (Ireland)] [Newlambda Technologies, UCD Science Centre North, Belfield, Dublin 4 (Ireland)

    2013-05-20T23:59:59.000Z

    We compare the extreme ultraviolet emission characteristics of tin and galinstan (atomic %: Ga: 78.35, In: 14.93, Sn: 6.72) between 10 nm and 18 nm in a laser-triggered discharge between liquid metal-coated electrodes. Over this wavelength range, the energy conversion efficiency for galinstan is approximately half that of tin, but the spectrum is less strongly peaked in the 13-15 nm region. The extreme ultraviolet source dimensions were 110 {+-} 25 {mu}m diameter and 500 {+-} 125 {mu}m length. The flatter spectrum, and -19 Degree-Sign C melting point, makes this galinstan discharge a relatively simple high radiance extreme ultraviolet light source for metrology and scientific applications.

  17. Ethanol seeking triggered by environmental context is attenuated by blocking dopamine D1 receptors in the nucleus accumbens core and shell in rats

    E-Print Network [OSTI]

    Chaudhri, Nadia; Sahuque, Lacey L.; Janak, Patricia H.

    2009-01-01T23:59:59.000Z

    ment into the prior ethanol self-administration context. SCHreinstatement of responding for ethanol cues triggered byplacement into an ethanol-associated context. Keywords

  18. A review of "Ars Epistolica: Communication in Sixteenth Century Western Europe: Epistolaries, Letter-writing Manuals and Model Letter Books 1501-1600" edited by Axel Erdmann, Alberto Govi and Fabrizio Govi

    E-Print Network [OSTI]

    Dickson, Donald R.

    2014-01-01T23:59:59.000Z

    and Model Letter Books 1501-1600. by With an Introduction by Judith Rice Henderson. Lucerne: Gilhofer & Ranschburg; Libreria Alberto Govi, 2014. xxv + 771 pp. with illustrations. 150 €. Review donald r. dickson, texas a&m university. Ars Epistolica... of the Renaissance, who often seem to undervalue the significance of the familiar letter in respublica literaria. Certainly book collectors will also find Ars Epistolica an invaluable resource. The volume is introduced by Prof. Judith Rice Henderson who offers...

  19. J. Phys. C:Solid State Phys., Vol. 7, 1974. Printed in Great Britain. @ 1974 LETTER TO THE EDITOR

    E-Print Network [OSTI]

    Macdonald, James Ross

    Letter to the Editor than 72-1, the system behaves essentially as though the lower mobility charge were, reaches a plateau value, CPS, greater than the geometrical capacitance of the sytem, Cp,but less than its

  20. GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 5, PAGES 923-926, MARCH 1, 2001 Laboratory observation of Alfven resonance

    E-Print Network [OSTI]

    California at Los Angles, University of

    GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 5, PAGES 923-926, MARCH 1, 2001 Laboratory observation. Copyright 2001 by the American Geophysical Union. Paper number 2000GL012165. 0094-8276/01/2000GL012165

  1. GEOPHYSICAL RESEARCH LETTERS, VOL. 21, NO. 15, PAGES 1619-1622,JULY 15, 1994 A studyofTypeI polarstratosphericcloudformation

    E-Print Network [OSTI]

    Jacobson, Mark

    GEOPHYSICAL RESEARCH LETTERS, VOL. 21, NO. 15, PAGES 1619-1622,JULY 15, 1994 A studyof sulfateparticles. Copyright1994by theAmericanGeophysicalUnion. Paper number94GL01368 0094-8534/94/94GL-01368503

  2. IEEE MICROWAVE AND GUIDED WAVE LETTERS, VOL. 7, NO. 10, OCTOBER 1997 329 Air-Gap Stacked Spiral Inductor

    E-Print Network [OSTI]

    Seo, Kwang Seok

    Inductor Seung Won Paek and Kwang Seok Seo Abstract--In this letter, we propose an air-gap stacked spiral and Materials Laboratory, LG Corporate Institute of Technology, Seoul 137-140, Korea. K. S. Seo

  3. Volume 258, number 3,4 PHYSICS LETTERS B 11 April 1991 Self-regenerating inflationary universe

    E-Print Network [OSTI]

    Cotsakis, Spiros

    Volume 258, number 3,4 PHYSICS LETTERS B 11 April 1991 Self-regenerating inflationary universe~scussion of self-regenerating, self-reproducing inflationary universe in the context of higher-order gravity theo

  4. Subscriber access provided by MIT Nano Letters is published by the American Chemical Society. 1155 Sixteenth Street

    E-Print Network [OSTI]

    , such as organic light-emitting devices (OLEDs)2 and solar cells,4,5 has been demonstrated and appears promising Sixteenth Street N.W., Washington, DC 20036 Letter Bias-Induced Photoluminescence Quenching of Single

  5. April 11, 2012 18:15 WSPC/INSTRUCTION FILE ppl-hlpgpu-final Parallel Processing Letters

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    April 11, 2012 18:15 WSPC/INSTRUCTION FILE ppl-hlpgpu-final Parallel Processing Letters c World:15 WSPC/INSTRUCTION FILE ppl-hlpgpu-final 2 M. Bourgoin, E. Chailloux, J-L Lamotte is proprietary

  6. Vol. 21 no. 24 2005, pages 43204321 doi:10.1093/bioinformatics/bti769BIOINFORMATICS LETTER TO THE EDITOR

    E-Print Network [OSTI]

    Yorke, James

    for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA and 2 InstituteVol. 21 no. 24 2005, pages 4320­4321 doi:10.1093/bioinformatics/bti769BIOINFORMATICS LETTER

  7. An Introduction to the Letters of Isaiah Moteka: the correspondence of a twentieth-century South African Zionist minister

    E-Print Network [OSTI]

    Cabrita, Joel

    2014-04-09T23:59:59.000Z

    worldwide black diaspora (Campbell 1998, Vinson 2012). Moteka’s letters, by contrast, reveal an epistolary network marked by its racial inclusivity, connecting both whites and blacks. It is true that letters are frequently linked to the emergence... human race could be understood literally (Kidd 2006: 128). In 1901, Dowie asserted: ‘White man, black man, yellow man, red man, brown man, we all have the same father.’1 And in the context of the period’s debate about the role of African...

  8. Modeling X-ray Emissions from Rocket Triggered A Thesis Submitted in Partial Satisfaction Of the Requirements for the Degree

    E-Print Network [OSTI]

    Belanger, David P.

    Modeling X-ray Emissions from Rocket Triggered Lightning A Thesis Submitted in Partial Satisfaction . . . 3 1.1 X-ray emissions from lightning . . . 4 1.2 Gamma-ray emissions . . . 5 1.3 Detection by the return stroke. The dart leader/return stroke sequence can repeat multiple times. The net eect

  9. Did changes in the Subpolar North Atlantic trigger the recent mass loss from the Greenland Ice Sheet?

    E-Print Network [OSTI]

    Straneo, Fiamma

    Did changes in the Subpolar North Atlantic trigger the recent mass loss from the Greenland Ice) Leigh A. Stearns (University of Kansas) The Greenland Ice Sheet's (GIS) contribution to sea level rise and nearly-simultaneous acceleration of several outlet glaciers in Greenland's western and southeastern

  10. A simple high-voltage high current spark gap with subnanosecond jitter triggered by femtosecond laser filamentation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 A simple high-voltage high current spark gap with subnanosecond jitter triggered by femtosecond and able to switch currents in excess of 10 kA with sub-nanosecond jitter. The spark gap is remotely with a nanosecond jitter time2-7 . The jitter could be reduced to hundred of picoseconds with a SF6 filled cell8

  11. August 26, 2010 Thursday 16 Elul 5770 12:11 IST 'Climate change didn't trigger agricultural

    E-Print Network [OSTI]

    Eldar, Yonina

    August 26, 2010 Thursday 16 Elul 5770 12:11 IST 'Climate change didn't trigger agricultural that dramatic climate changes were responsible for the ancient Near East's Agricultural Revolution, about 8 argue against climate change being the origin of Near Eastern agriculture, and believe that a slow

  12. Aluminum Triggers Decreased Aconitase Activity via Fe-S Cluster Disruption and the Overexpression of Isocitrate Dehydrogenase and

    E-Print Network [OSTI]

    Appanna, Vasu

    Aluminum Triggers Decreased Aconitase Activity via Fe-S Cluster Disruption and the Overexpression Research, Sudbury, Ontario P3E 6B4, Canada Although aluminum is known to be toxic to most or- ganisms, its that aluminum promotes the inhibition of aconitase (Acn) activity via the perturbation of the Fe-S cluster

  13. Probing the cosmic gamma-ray burst rate with trigger simulations of the swift burst alert telescope

    SciTech Connect (OSTI)

    Lien, Amy; Cannizzo, John K. [Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Sakamoto, Takanori [Department of Physics and Mathematics, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5258 (Japan); Gehrels, Neil; Barthelmy, Scott D. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Palmer, David M. [Los Alamos National Laboratory, B244, Los Alamos, NM 87545 (United States); Graziani, Carlo [Astronomy Department, The University of Chicago, Chicago, IL 60637 (United States)

    2014-03-01T23:59:59.000Z

    The gamma-ray burst (GRB) rate is essential for revealing the connection between GRBs, supernovae, and stellar evolution. Additionally, the GRB rate at high redshift provides a strong probe of star formation history in the early universe. While hundreds of GRBs are observed by Swift, it remains difficult to determine the intrinsic GRB rate due to the complex trigger algorithm of Swift. Current studies of the GRB rate usually approximate the Swift trigger algorithm by a single detection threshold. However, unlike the previously flown GRB instruments, Swift has over 500 trigger criteria based on photon count rate and an additional image threshold for localization. To investigate possible systematic biases and explore the intrinsic GRB properties, we develop a program that is capable of simulating all the rate trigger criteria and mimicking the image threshold. Our simulations show that adopting the complex trigger algorithm of Swift increases the detection rate of dim bursts. As a result, our simulations suggest that bursts need to be dimmer than previously expected to avoid overproducing the number of detections and to match with Swift observations. Moreover, our results indicate that these dim bursts are more likely to be high redshift events than low-luminosity GRBs. This would imply an even higher cosmic GRB rate at large redshifts than previous expectations based on star formation rate measurements, unless other factors, such as the luminosity evolution, are taken into account. The GRB rate from our best result gives a total number of 4568{sub ?1429}{sup +825} GRBs per year that are beamed toward us in the whole universe.

  14. A calendar of the letters of Martin Donisthorpe Armstrong (1882-1974) with an introductory essay, notes, and the texts of twelve hitherto unpublished letters

    E-Print Network [OSTI]

    Womack, Kenneth Allen

    1992-01-01T23:59:59.000Z

    . , London. APCS, 1p. "Many thanks for the Andrew Lang poems. " A2 7 Feb. 1924. 37 Great Ormond St. , London. ALS, 1p. "Here is the photograph for which you asked me. " A3 18 Feb. 1924. 37 Great Ormond St. , London. APCS, lp. "I will let you have... Stewart Flint (Fl), Charles Gardiner (Gl), Peter Janson-Smith (Jl-J2), John Montgomery (MI-M57), Herman Quid (Ol), Clarence Paget (Pl-P5), Miss Preston (P133), Margaret Stephens (SI-S23), and Mr. Wilson (Wl-W3). My letters to A. D. Peters requesting...

  15. 3 July 2000 Physics Letters A 271 2000 277--284

    E-Print Network [OSTI]

    Poet, Ron

    billiards D.A. Poet a,) , R.R.W. Poet b a Department of Applied Mathematics and Theoretical Physics, Uni44­1223­337866. ZŸ . E­mail address: dap29@damtp.cam.ac.uk D.A. Poet . with the boundary. The orbit0375 ­ 9601 00 00377 ­ 7 #12; ( ) D.A. Poet, R.R.W. PoetrPhysics Letters A 271 2000 277--284 278 Fig. 1

  16. Letter from the Wind Program Director: Fourth Quarter 2013 | Department of

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

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

  17. The stars near the centre of supergiant shell LMC4: Further constraints on triggering scenarios

    E-Print Network [OSTI]

    Jochen M. Braun; Klaas S. de Boer; Martin Altmann

    2000-06-05T23:59:59.000Z

    The huge supergiant shell (SGS) LMC4, next to the giant HII region 30 Doradus the second most impressive feature of the Large Magellanic Cloud (LMC), has been the subject of many studies and was used to test various models of star forming mechanisms. In this paper we present a B, V photometry of the very centre of this SGS. The new data yield an age of 11(2)Myr and a colour excess E(B-V) = 0.10(3)mag. Additionally, the two clusters near the geometric centre are too old to be related to the formation of LMC4: HS343 being ~0.1Gyr and KMHK1000 being ~0.3Gyr of age. This and existing photometries support that the young stellar population covering the entire inner region is nearly coeval. We compare these findings with predictions of models proposed for the creation mechanism of SGSs. We conclude that the large-scale trigger, necessary to explain the observations, comes from hydrodynamic interaction of the galactic halo with gas in the leading edge of the moving LMC.

  18. The Pulse Scale Conjecture and the Case of BATSE Trigger 2193

    E-Print Network [OSTI]

    Robert J. Nemiroff

    2000-07-14T23:59:59.000Z

    The pulses that compose gamma-ray bursts (GRBs) are hypothesized to have the same shape at all energies, differing only by scale factors in time and amplitude. This "Pulse Scale Conjecture" is confirmed here between energy channels of the dominant pulse in GRB 930214c (BATSE trigger 2193), the single most fluent single-pulsed GRB that occurred before May 1998. Furthermore, pulses are hypothesized to start at the same time independent of energy. This "Pulse Start Conjecture" is also confirmed in GRB 930214c. Analysis of GRB 930214c also shows that, in general, higher energy channels show shorter temporal scale factors. Over the energy range 100 KeV - 1 MeV, it is found that the temporal scale factors between a pulse measured at different energies are related to that energy by a power law, possibly indicating a simple relativistic mechanism is at work. To test robustness, the Pulse Start and Pulse Scale Conjectures were also tested on the four next most fluent single-pulse GRBs. Three of the four clearly passed, with a second smaller pulse possibly confounding the discrepant test. Models where the pulse rise and decay are created by different phenomena do not typically predict pulses that satisfy both the Pulse Start Conjecture and the Pulse Scale Conjecture, unless both processes are seen to undergo common time dilation.

  19. Carbon Detonation and Shock-Triggered Helium Burning in Neutron Star Superbursts

    E-Print Network [OSTI]

    Weinberg, Nevin N

    2007-01-01T23:59:59.000Z

    The strong degeneracy of the 12C ignition layer on an accreting neutron star results in a hydrodynamic thermonuclear runaway, in which the nuclear heating time becomes shorter than the local dynamical time. We model the resulting combustion wave during these superbursts as an upward propagating detonation. We solve the reactive fluid flow and show that the detonation propagates through the deepest layers of fuel and drives a shock wave that steepens as it travels upward into lower density material. The shock is sufficiently strong upon reaching the freshly accreted H/He layer that it triggers unstable 4He burning if the superburst occurs during the latter half of the regular Type I bursting cycle; this is likely the origin of the bright Type I precursor bursts observed at the onset of superbursts. The cooling of the outermost shock-heated layers produces a bright, ~0.1s, flash that precedes the Type I burst by a few seconds; this may be the origin of the spike seen at the burst onset in 4U 1820-30 and 4U 1636...

  20. The Standard model as a low-energy effective theory: what is triggering the Higgs mechanism?

    E-Print Network [OSTI]

    Fred Jegerlehner

    2014-07-02T23:59:59.000Z

    The discovery of the Higgs by ATLAS and CMS at the LHC not only provided the last missing building block of the electroweak Standard Model, the mass of the Higgs has been found to have a very peculiar value about 126 GeV, which is such that vacuum stability is extending up to the Planck scale. This may have much deeper drawback than anticipated so far. The impact on the running of the SM gauge, Yukawa and Higgs couplings up to the Planck scale has been discussed in several articles recently. Here we consider the impact on the running masses and we discuss the role of quadratic divergences within the Standard Model. The change of sign of the coefficient of the quadratically divergent terms showing up at about mu_0 ~ 1.4 x 10^16 GeV may be understood as a first order phase transition restoring the symmetric phase, while its large negative values at lower scales triggers the Higgs mechanism, running parameters evolve in such a way that the symmetry is restored two orders of magnitude before the Planck scale. Thus, the electroweak phase transition takes place at the scale mu_0 and not at the electroweak scale v ~ 250 GeV. The SM Higgs system and its phase transition could play a key role for the inflation of the early universe. Also baryogenesis has to be reconsidered under the aspect that perturbative arguments surprisingly work up to the Planck scale.

  1. Triggered Star Formation in the Scorpius-Centaurus OB Association (Sco OB2)

    E-Print Network [OSTI]

    Thomas Preibisch; Hans Zinnecker

    2000-08-01T23:59:59.000Z

    We explore the star formation history of the Upper Scorpius OB association, the youngest part of Sco OB2. A wide field (160 square-degree) survey for low-mass pre-main sequence (PMS) stars enabled us to increase the number of known low-mass members of Upper Scorpius to nearly 100 stars. In a detailed analysis of the locations of these stars in the HR diagram, taking proper account of the uncertainties and the effects of unresolved binaries, we find a mean stellar age of about 5 Myr and no evidence for a significant age dispersion among these stars. This implies that the star formation history of the Upper Scorpius association was dominated by a short star-burst, which started about 5 Myr ago and ended probably not more than one or two Myr later. Interestingly, the structure and kinematics of the HI shells surrounding the Sco OB2 association show that the shock wave of a supernova explosion in the nearby Upper Centaurus-Lupus association, the oldest part of Sco OB2, crossed Upper Scorpius just about 5 Myr ago. This strongly suggests that this supernova shock wave triggered the star-burst in Upper Scorpius.

  2. Artificial Neural Network as a FPGA Trigger for a Detection of Very Inclined Air Showers

    E-Print Network [OSTI]

    Szadkowski, Zbigniew

    2014-01-01T23:59:59.000Z

    The observation of ultra-high energy neutrinos has become a priority in experimental astroparticle physics. Neutrinos can interact in the atmosphere (downward-going) or in the Earth crust (Earth-skimming), producing air showers that can be observed with arrays of detectors at the ground. The surface detector array of the Pierre Auger Observatory can detect these types of cascades. The distinguishing signature for neutrino events is the presence of very inclined showers produced close to the ground (i.e., after having traversed a large amount of atmosphere). Up to now, the Pierre Auger Observatory did not find any candidate on a neutrino event. This imposes competitive limits to the diffuse flux of neutrinos. A very low rate of events potentially generated by neutrinos is a significant challenge for a detection technique and requires both sophisticated algorithms and high-resolution hardware. We present a trigger based on a pipeline artificial neural network implemented in a large FPGA which after learning can...

  3. Carbon Detonation and Shock-Triggered Helium Burning in Neutron Star Superbursts

    E-Print Network [OSTI]

    Nevin N. Weinberg; Lars Bildsten

    2007-08-13T23:59:59.000Z

    The strong degeneracy of the 12C ignition layer on an accreting neutron star results in a hydrodynamic thermonuclear runaway, in which the nuclear heating time becomes shorter than the local dynamical time. We model the resulting combustion wave during these superbursts as an upward propagating detonation. We solve the reactive fluid flow and show that the detonation propagates through the deepest layers of fuel and drives a shock wave that steepens as it travels upward into lower density material. The shock is sufficiently strong upon reaching the freshly accreted H/He layer that it triggers unstable 4He burning if the superburst occurs during the latter half of the regular Type I bursting cycle; this is likely the origin of the bright Type I precursor bursts observed at the onset of superbursts. The cooling of the outermost shock-heated layers produces a bright, ~0.1s, flash that precedes the Type I burst by a few seconds; this may be the origin of the spike seen at the burst onset in 4U 1820-30 and 4U 1636-54, the only two bursts observed with RXTE at high time resolution. The dominant products of the 12C detonation are 28Si, 32S, and 36Ar. Gupta et al. showed that a crust composed of such intermediate mass elements has a larger heat flux than one composed of iron-peak elements and helps bring the superburst ignition depth into better agreement with values inferred from observations.

  4. Implementation of a level 1 trigger system using high speed serial (VXS) techniques for the 12GeV high luminosity experimental programs at Thomas Jefferson National Accelerator Facility

    SciTech Connect (OSTI)

    C. Cuevas, B. Raydo, H. Dong, A. Gupta, F.J. Barbosa, J. Wilson, W.M. Taylor, E. Jastrzembski, D. Abbott

    2009-11-01T23:59:59.000Z

    We will demonstrate a hardware and firmware solution for a complete fully pipelined multi-crate trigger system that takes advantage of the elegant high speed VXS serial extensions for VME. This trigger system includes three sections starting with the front end crate trigger processor (CTP), a global Sub-System Processor (SSP) and a Trigger Supervisor that manages the timing, synchronization and front end event readout. Within a front end crate, trigger information is gathered from each 16 Channel, 12 bit Flash ADC module at 4 nS intervals via the VXS backplane, to a Crate Trigger Processor (CTP). Each Crate Trigger Processor receives these 500 MB/S VXS links from the 16 FADC-250 modules, aligns skewed data inherent of Aurora protocol, and performs real time crate level trigger algorithms. The algorithm results are encoded using a Reed-Solomon technique and transmission of this Level 1 trigger data is sent to the SSP using a multi-fiber link. The multi-fiber link achieves an aggregate trigger data transfer rate to the global trigger at 8 Gb/s. The SSP receives and decodes Reed-Solomon error correcting transmission from each crate, aligns the data, and performs the global level trigger algorithms. The entire trigger system is synchronous and operates at 250 MHz with the Trigger Supervisor managing not only the front end event readout, but also the distribution of the critical timing clocks, synchronization signals, and the global trigger signals to each front end readout crate. These signals are distributed to the front end crates on a separate fiber link and each crate is synchronized using a unique encoding scheme to guarantee that each front end crate is synchronous with a fixed latency, independent of the distance between each crate. The overall trigger signal latency is <3 uS, and the proposed 12GeV experiments at Jefferson Lab require up to 200KHz Level 1 trigger rate.

  5. Why the xE distribution triggered by a leading particle does not measure the fragmentation function but does measure the ratio of the transverse momenta of the away-side jet to the trigger-side jet

    E-Print Network [OSTI]

    M. J. Tannenbaum

    2007-02-16T23:59:59.000Z

    Hard-scattering of point-like constituents (or partons) in p-p collisions was discovered at the CERN-ISR in 1972 by measurements utilizing inclusive single or pairs of hadrons with large transverse momentum ($p_T$). It was generally assumed, following Feynman, Field and Fox, as shown by data from the CERN-ISR experiments, that the $p_{T_a}$ distribution of away side hadrons from a single particle trigger [with $p_{T_t}$], corrected for of fragmentation would be the same as that from a jet-trigger and follow the same fragmentation function as observed in $e^+ e^-$ or DIS. PHENIX attempted to measure the fragmentation function from the away side $x_E\\sim p_{T_a}/p_{T_t}$ distribution of charged particles triggered by a $\\pi^0$ in p-p collisions at RHIC and showed by explicit calculation that the $x_E$ distribution is actually quite insensitive to the fragmentation function. Illustrations of the original arguments and ISR results will be presented. Then the lack of sensitivity to the fragmentation function will be explained, and an analytic formula for the $x_E$ distribution given, in terms of incomplete Gamma functions, for the case where the fragmentation function is exponential. The away-side distribution in this formulation has the nice property that it both exhibits $x_E$ scaling and is directly sensitive to the ratio of the away jet $\\hat{p}_{T_a}$ to that of the trigger jet, $\\hat{p}_{T_t}$, and thus can be used, for example, to measure the relative energy loss of the two jets from a hard-scattering which escape from the medium in A+A collisions. Comparisons of the analytical formula to RHIC measurements will be presented, including data from STAR and PHENIX, leading to some interesting conclusions.

  6. ELECTRONICS LETTERS 11th November 1999 Vol. 35 No. 23 Measurement of high frequency electrical

    E-Print Network [OSTI]

    Smallwood, Rod

    optically isolated sinusoidal excitation using a phase locked loop (PLL) for synchronisation, direct sampling, 1024 points) is synchronised with the packet trigger. The control circuit transmits identical bi-phase and the timing of A/D conversion is Phase sensitive demod- ulation is used to calculate the complex

  7. 198 OPTICS LETTERS / Vol. 20, No. 2 / January 15, 1995 Second-harmonic generation of amplified

    E-Print Network [OSTI]

    Rebane, Aleks

    Schwoerer, and Urs P. Wild Physical Chemistry Laboratory, Swiss Federal Institute of Technology, ETH high-energy amplified femtosecond pulses have become available. This development has triggered a renewed interest in the generation of optical har- monics and other nonlinear-optical effects that can

  8. Computing in High Energy and Nuclear Physics CHEP03, La Jolla, California, USA, 24-28 March 2003 1 The Algorithm Steering and Trigger Decision mechanism of the ATLAS

    E-Print Network [OSTI]

    Anjos, André

    TUGT007 The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger G. Comune is limited to detector geometrical Regions of Interest where high momentum signals are detected. The proposed

  9. Interferometric and schlieren characterization of the plasmas and shock wave dynamics during laser-triggered discharge in atmospheric air

    SciTech Connect (OSTI)

    Wei, Wenfu; Li, Xingwen, E-mail: xwli@mail.xjtu.edu.cn; Wu, Jian; Yang, Zefeng; Jia, Shenli; Qiu, Aici [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shaanxi 710049 (China)

    2014-08-15T23:59:59.000Z

    This paper describes our efforts to reveal the underlying physics of laser-triggered discharges in atmospheric air using a Mach-Zehnder interferometer and schlieren photography. Unlike the hemispherical shock waves that are produced by laser ablation, bell-like morphologies are observed during laser-triggered discharges. Phase shifts are recovered from the interferograms at a time of 1000?ns by the 2D fast Fourier transform method, and then the values of the refractive index are deduced using the Abel inversion. An abundance of free electrons is expected near the cathode surface. The schlieren photographs visualize the formation of stagnation layers at ?600?ns in the interaction zones of the laser- and discharge-produced plasmas. Multiple reflected waves are observed at later times with the development of shock wave propagations. Estimations using the Taylor-Sedov self-similar solution indicated that approximately 45.8% and 51.9% of the laser and electrical energies are transferred into the gas flow motions, respectively. Finally, numerical simulations were performed, which successfully reproduced the main features of the experimental observations, and provided valuable insights into the plasma and shock wave dynamics during the laser-triggered discharge.

  10. J/{psi} measurements in 7 TeV p-p collisions with ALICE using EMCal-triggered events

    SciTech Connect (OSTI)

    Figueredo, M. A. [Universidade de Sao Paulo (Brazil); Collaboration: ALICE Collaboration

    2013-03-25T23:59:59.000Z

    J/{psi} measurements can be performed with the ALICE experiment through the dilepton decay into e{sup -}e{sup +} (for rapidity Double-Vertical-Line y Double-Vertical-Line <0.9) and {mu}{sup -}{mu}{sup +} (for rapidity -4.0triggers for events containing high energy electrons. In 2011, during proton-proton collisions at 7 TeV, the ALICE EMCal trigger was intensively used for event selection of showers above 4.8 GeV. In this work, some results from 2011 proton-proton collisions are presented, showing a J/{psi} measurement for transversal momentum above 6 GeV/c, due to a combination of the ALICE EMCal PID and trigger system.

  11. Samples of the Abstract, the Title Page, the Copyright Page, and the Approval Page The Title of the Dissertation in Upper and Lower Case Letters

    E-Print Network [OSTI]

    Holsinger, Kent

    of the Dissertation in Upper and Lower Case Letters Jane Mary Doe, PhD University of Connecticut, [year of graduation quality for the abstract are the same as those for the dissertation. If the abstract extends onto a second of graduation] The abstract is not paginated. #12;The Title of the Dissertation in Upper and Lower Case Letters

  12. A descriptive, annotated calendar of the letters from Harriet and Leon Lewis to their publisher Robert Bonner, with a critical introduction and notes 

    E-Print Network [OSTI]

    Norton, Saundra E

    1993-01-01T23:59:59.000Z

    tomorrow with all the loss and scandal of such a proceeding, and take the next steamer for a new country" (see calendar item 24). Throughout their letters, the Lewises make similar requests for personal loans. The letters reveal their intention of paying...

  13. Neural Information Processing -Letters and Reviews Vol.1, No.1, October, 2003 Artificial Neural Networks as Analytic Tools in an ERP Study of Face

    E-Print Network [OSTI]

    Dawson, Michael

    memory effects and attest to the utility of ANN's in ERP analysis. Keywords - Artificial neural networks and is LETTER #12;Artificial Neural Networks as Analytic Tools in an ERP Study R. Graham and M.R.W. Dawson 68Neural Information Processing - Letters and Reviews Vol.1, No.1, October, 2003 67 Artificial Neural

  14. IEEE ELECTRON DEVICE LETTERS. VOL. EDL-6, NO. 10, OCTOBER 1985 491 J. J. ROSENBERG, M. BENLAMRI, P. D. KIRCHNER, J. M. WOODALL, AND G. D. PETTIT

    E-Print Network [OSTI]

    Woodall, Jerry M.

    IEEE ELECTRON DEVICE LETTERS. VOL. EDL-6, NO. 10, OCTOBER 1985 491 J. J. ROSENBERG, M. BENLAMRI, P of the reported heterojunction FET devices utilize A1,Gal _,As/ GaAs heterojunctions in which electrons. D. KIRCHNER, J. M. WOODALL, AND G. D. PETTIT Abstract-This letter describes high electron mobility

  15. Data Evaluation, Completion and Manipulation

    E-Print Network [OSTI]

    This folder contains the PSSE load flow, transmission planning criteria and single line diagrams for the of Electricity Delivery and Energy Reliability Under Award No. DE-FC-06NT42847 Task 7 Deliverable ­ Letter Report of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility

  16. A high-resolution TDC-based board for a fully digital trigger and data acquisition system in the NA62 experiment at CERN

    E-Print Network [OSTI]

    Elena Pedreschi; Bruno Angelucci; Carlo Avanzini; Stefano Galeotti; Gianluca Lamanna; Guido Magazzu; Jacopo Pinzino; Roberto Piandani; Marco Sozzi; Franco Spinella; Stefano Venditti

    2014-07-09T23:59:59.000Z

    A Time to Digital Converter (TDC) based system, to be used for most sub-detectors in the high-flux rare-decay experiment NA62 at CERN SPS, was built as part of the NA62 fully digital Trigger and Data AcQuisition system (TDAQ), in which the TDC Board (TDCB) and a general-purpose motherboard (TEL62) will play a fundamental role. While TDCBs, housing four High Performance Time to Digital Converters (HPTDC), measure hit times from sub-detectors, the motherboard processes and stores them in a buffer, produces trigger primitives from different detectors and extracts only data related to the lowest trigger level decision, once this is taken on the basis of the trigger primitives themselves. The features of the TDCB board developed by the Pisa NA62 group are extensively discussed and performance data is presented in order to show its compliance with the experiment requirements.

  17. Reviews of ASME Section 11 pump and valve relief requests: Post Generic Letter 89-04

    SciTech Connect (OSTI)

    DiBiasio, A.

    1992-01-01T23:59:59.000Z

    This paper presents a discussion of ASME Section 11 Pump and Valve Inservice Testing relief request reviews by the NRC and their contractors. Topics that will be discussed include the scope of USNRC reviews in Technical Evaluation Reports (TERs) (and Safety Evaluation, SEs); including the basis for granting relief requests, the status of relief requests in IST Program updates, and the Generic Letter 89-04 approval process; and the level of technical detail required in submitted programs. This presentation is based on the experiences of Brookhaven National Laboratory in reviewing IST Programs for the Mechanical Engineering Branch of the US Nuclear Regulatory Commission.

  18. Reviews of ASME Section 11 pump and valve relief requests: Post Generic Letter 89-04

    SciTech Connect (OSTI)

    DiBiasio, A.

    1992-07-01T23:59:59.000Z

    This paper presents a discussion of ASME Section 11 Pump and Valve Inservice Testing relief request reviews by the NRC and their contractors. Topics that will be discussed include the scope of USNRC reviews in Technical Evaluation Reports (TERs) (and Safety Evaluation, SEs); including the basis for granting relief requests, the status of relief requests in IST Program updates, and the Generic Letter 89-04 approval process; and the level of technical detail required in submitted programs. This presentation is based on the experiences of Brookhaven National Laboratory in reviewing IST Programs for the Mechanical Engineering Branch of the US Nuclear Regulatory Commission.

  19. TACMB-1: The Theory of Anisotropies in the Cosmic Microwave Background (Bibliographic Resource Letter)

    E-Print Network [OSTI]

    Martin White; J. D. Cohn

    2002-03-07T23:59:59.000Z

    This Resource Letter provides a guide to the literature on the theory of anisotropies in the cosmic microwave background. Journal articles, web pages, and books are cited for the following topics: discovery, cosmological origin, early work, recombination, general CMB anisotropy references, primary CMB anisotropies (numerical, analytical work), secondary effects, Sunyaev-Zel'dovich effect(s), lensing, reionization, polarization, gravity waves, defects, topology, origin of fluctuations, development of fluctuations, inflation and other ties to particle physics, parameter estimation, recent constraints, web resources, foregrounds, observations and observational issues, and gaussianity.

  20. A review of "Sociable Letters: Margaret Cavendish." by James Fitzmaurice ed. 

    E-Print Network [OSTI]

    Sarah R. Moreman

    2005-01-01T23:59:59.000Z

    Cavendish. Peterborough, Ontario: Broadview Press, 2004. 336 pp. + 6 illus. $12.95. Review by SARAH R. MOREMAN, SUL ROSS STATE UNIVERSITY RIO GRANDE COLLEGE. Margaret Cavendish published thirteen books that went through twenty- two editions in her... opens with a de- scription of ?the Lady C.R.? who ?being a woman of none of the least Sizes, but one of the largest, and having Anger added to her Strength,? beats her husband soundly and in public (72). This is remarkable; however, the letter also...