National Library of Energy BETA

Sample records for limits electronic access

  1. Dynamic Query Optimization under Access Limitations and Dependencies

    E-Print Network [OSTI]

    Calvanese, Diego

    : Unlike relational tables in a database, data sources on the Web typically can only be accessed in limited ways. In particular, some of the source fields may be required as input and thus need to be mandatorily filled in order to access the source. Answering queries over sources with access limitations is a complex

  2. Comparison of collisions on HOV facilities with limited and continuous access

    E-Print Network [OSTI]

    Jang, Kitae; Chung, Koohong; Ragland, David R.; Chan, Ching-Yao

    2008-01-01

    in continuous access while slightly higher proportion ofcontinuous access HOV lanes, limited access HOV lanes have a higher proportion

  3. Pedestrian Only Area University visitors' car parks (limited access)

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    Campus Map Pedestrian Only Area Car Parks University visitors' car parks (limited access) Other university car parks Public multi-storey car park Lawns Free City Bus Stop ST. GEORGE'S FIELD WOODHOUSE LAN E

  4. Accessing and Using Electronic Resources Policy The Oregon Health & Science University (OHSU) Library purchases electronic databases,

    E-Print Network [OSTI]

    Chapman, Michael S.

    & Science University (OHSU) Library purchases electronic databases, journals, books to the OHSU network. The Library provides computers in the Biomedical Information, as defined below, may access electronic resources remotely: · Employees; · Employees

  5. Access to Electronic Thesis Author: Mark Strong

    E-Print Network [OSTI]

    Oakley, Jeremy

    .2 Thesis overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Economic Evaluation in Health in Health Economic Decision Models Qualification: PhD This electronic thesis is protected by the Copyright and in the text. #12;Managing Structural Uncertainty in Health Economic Decision Models Mark Strong Thesis

  6. Secondary electron emission yield in the limit of low electron energy

    E-Print Network [OSTI]

    Andronov, A N; Kaganovich, I D; Startsev, E A; Raitses, Y; Demidov, V I

    2013-01-01

    Secondary electron emission (SEE) from solids plays an important role in many areas of science and technology.1 In recent years, there has been renewed interest in the experimental and theoretical studies of SEE. A recent study proposed that the reflectivity of very low energy electrons from solid surface approaches unity in the limit of zero electron energy2,3,4, If this was indeed the case, this effect would have profound implications on the formation of electron clouds in particle accelerators,2-4 plasma measurements with electrostatic Langmuir probes, and operation of Hall plasma thrusters for spacecraft propulsion5,6. It appears that, the proposed high electron reflectivity at low electron energies contradicts to numerous previous experimental studies of the secondary electron emission7. The goal of this note is to discuss possible causes of these contradictions.

  7. An upper limit on electron antineutrino mass from Troitsk experiment

    E-Print Network [OSTI]

    V. N. Aseev; A. I. Belesev; A. I. Berlev; E. V. Geraskin; A. A. Golubev; N. A. Likhovid; V. M. Lobashev; A. A. Nozik; V. S. Pantuev; V. I. Parfenov; A. K. Skasyrskaya; F. V. Tkachov; S. V. Zadorozhny

    2011-12-13

    An electron antineutrino mass has been measured in tritium beta-decay in the "Troitsk nu-mass" experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired from 1994 to 2004 was reanalysed. A thorough selection of data with the reliable experimental conditions has been performed. We checked every known systematic effect and got the following experimental estimate for neutrino mass squared m_{nu}^{2}=-0.67+/- 2.53 {eV}^{2}. This gives an experimental upper sensitivity limit of m_{nu}<2.2 eV and upper limit estimates m_{nu}<2.12 eV, 95% C.L. for Bayesian statistics and m_{nu}<2.05 eV, 95% C.L. for the Feldman and Cousins approach.

  8. Reaching the quantum limit of sensitivity in electron spin resonance

    E-Print Network [OSTI]

    A. Bienfait; J. J. Pla; Y. Kubo; M. Stern; X. Zhou; C. C. Lo; C. D. Weis; T. Schenkel; M. L. W. Thewalt; D. Vion; D. Esteve; B. Julsgaard; K. Moelmer; J. J. L. Morton; P. Bertet

    2015-07-24

    We report pulsed electron-spin resonance (ESR) measurements on an ensemble of Bismuth donors in Silicon cooled at 10mK in a dilution refrigerator. Using a Josephson parametric microwave amplifier combined with high-quality factor superconducting micro-resonators cooled at millikelvin temperatures, we improve the state-of-the-art sensitivity of inductive ESR detection by nearly 4 orders of magnitude. We demonstrate the detection of 1700 bismuth donor spins in silicon within a single Hahn echo with unit signal-to-noise (SNR) ratio, reduced to just 150 spins by averaging a single Carr-Purcell-Meiboom-Gill sequence. This unprecedented sensitivity reaches the limit set by quantum fluctuations of the electromagnetic field instead of thermal or technical noise, which constitutes a novel regime for magnetic resonance.

  9. Scattering with angular limitation projection electron beam lithography for suboptical lithography

    E-Print Network [OSTI]

    Harriott, Lloyd R.

    Scattering with angular limitation projection electron beam lithography for suboptical lithography era early in the next century. The scattering with angular limitation projection electron-beam lithography SCALPEL approach combines the high resolution and wide process latitude inherent in electron beam

  10. CONTROLLING ACCESS TO UNIVERSITY FACILITIES 1. It is the Policy of Syracuse University that all electronically secured University buildings will

    E-Print Network [OSTI]

    Mather, Patrick T.

    that all electronically secured University buildings will have a single access control system for managing) and the Department of Energy and Computing Management (ECM). B. INFORMATION 1.The policy establishes responsibility of electronic security systems and provides for the monitoring of external access to University facilities

  11. Electronic noise in nanostructures: limitations and sensing applications 

    E-Print Network [OSTI]

    Kim, Jong Un

    2007-04-25

    and their characteristic length is close to acoustical phonon wavelength. Moreover, because nanostructures include significantly fewer charge carriers than microscale structures, electronic noise in nanostructures is enhanced compared to microscale structures. Additionally...

  12. Accessibility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional Knowledge KiosksAbout UsAboutWeb Policies » Accessibility

  13. Accessibility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access to the

  14. Chasing the limits of the one electron approximation

    SciTech Connect (OSTI)

    K?dziera, Dariusz; Mentel, ?ukasz M.

    2014-10-06

    Rapid progress in the development of computational methods for quantum chemistry is not properly balanced by the development of basis sets. Even in the case of few-electron systems it is hard to find basis set which are able to reproduce the ECG benchmarks with the mhartree accuracy. In this paper we show early work on improvements of the basis sets for small atomic and molecular systems. As a starting point the ground state of lithium atom and the lowest states of lithium dimer will be investigated. The exploratory optimization of the exponents of primitive gaussians will be based on even tempered scheme combined with CISD method.

  15. Exciton-like trap states limit electron mobility in TiO2 nanotubes

    E-Print Network [OSTI]

    Exciton-like trap states limit electron mobility in TiO2 nanotubes Christiaan Richter and Charles A , that low mobility in polycrystalline TiO2 nanotubes is not due to scattering from grain boundaries (electrons) be transported through an anodic TiO2 electrode, either along the length of nanotubes in the case

  16. Inter-library loan services and access to electronic resources in French university libraries : a marriage of reason

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    information in French university libraries, and corresponding changes in the role of Inter-Library Loan de l'Information Scientifique et Technique)1 and the national university libraries network. OurInter-library loan services and access to electronic resources in French university libraries

  17. Nuclear structure aspects of neutrinoless {beta}{beta} decay: limits on the electron neutrino mass

    SciTech Connect (OSTI)

    Civitarese, O. [Department of Physics. University of La Plata, 1900 La Plata (Argentina); Suhonen, J. [Department of Physics. University of Jyvaeskyla, (Finland)

    2007-02-12

    We discuss some features of the nuclear structure elements participant in the calculation of the mass sector of the half-life of the neutrinoless double beta decay, and the consequences upon the adopted limits of the electron-neutrino mass.

  18. Limiter

    DOE Patents [OSTI]

    Cohen, S.A.; Hosea, J.C.; Timberlake, J.R.

    1984-10-19

    A limiter with a specially contoured front face is provided. The front face of the limiter (the plasma-side face) is flat with a central indentation. In addition, the limiter shape is cylindrically symmetric so that the limiter can be rotated for greater heat distribution. This limiter shape accommodates the various power scrape-off distances lambda p, which depend on the parallel velocity, V/sub parallel/, of the impacting particles.

  19. Apparatus and method for servicing an elongated suspended pump motor in an electric power plant with limited access

    DOE Patents [OSTI]

    Chavez, Rossemary V. (Monroeville, PA); Ekeroth, Douglas E. (Delmont, PA); Johnson, F. Thomas (Baldwin Boro, PA); Matusz, John M. (Plum Boro both of Allegheny County, PA)

    1994-01-01

    Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elongated motor in an upright position out from under the steam generator and onto an elevator. The elevator is lowered to transfer support of the cart and motor through trunnions to saddles straddling the elevator for rotation of the cart to a generally horizontal position. The elevator then raises the horizontally disposed cart carrying the motor to a higher floor where it is rolled off the elevator and out through the auxiliary equipment hatch.

  20. Apparatus and method for servicing an elongated suspended pump motor in an electric power plant with limited access

    DOE Patents [OSTI]

    Chavez, R.V.; Ekeroth, D.E.; Johnson, F.T.; Matusz, J.M.

    1994-04-26

    Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elongated motor in an upright position out from under the steam generator and onto an elevator. The elevator is lowered to transfer support of the cart and motor through trunnions to saddles straddling the elevator for rotation of the cart to a generally horizontal position. The elevator then raises the horizontally disposed cart carrying the motor to a higher floor where it is rolled off the elevator and out through the auxiliary equipment hatch. 14 figures.

  1. Limiter

    DOE Patents [OSTI]

    Cohen, Samuel A. (Hopewell, NJ); Hosea, Joel C. (Princeton, NJ); Timberlake, John R. (Allentown, NJ)

    1986-01-01

    A limiter with a specially contoured front face accommodates the various power scrape-off distances .lambda..sub.p, which depend on the parallel velocity, V.sub..parallel., of the impacting particles. The front face of the limiter (the plasma-side face) is flat with a central indentation. In addition, the limiter shape is cylindrically symmetric so that the limiter can be rotated for greater heat distribution.

  2. Spatial resolution limits in electron-beam-induced deposition N. Silvis-Cividjian, C. W. Hagen,a

    E-Print Network [OSTI]

    Silvis-Cividjian, Natalia

    Spatial resolution limits in electron-beam-induced deposition N. Silvis-Cividjian, C. W. Hagen, The Netherlands Received 26 May 2005; accepted 30 August 2005; published online 24 October 2005 Electron-beam-dimensional structures on almost any target geometry. This technique has occasionally been used in focused electron-beam

  3. Wheelchair access to and within this building is not currently recommended without assistance and is limited to the ground floor.

    E-Print Network [OSTI]

    Edinburgh, University of

    6. Parking. Page 7. Outside Access. Page 8. Internal Access, Page 10. Reception. Page 10. Lift. Page of a mile of the main student residences at Pollock Halls. The nearest railway line is at Waverley Station

  4. Wheelchair access to and within this building is unsuitable without assistance and is limited to part of the second floor.

    E-Print Network [OSTI]

    Edinburgh, University of

    . Parking. Page 7. Outside Access. Page 8. Internal Access. Page 11. Reception. Page 12. Lift. Page 12 student residences at Pollock Halls. The nearest railway line is at Waverley Station in the city centre

  5. Wheelchair access to and within this building is not currently recommended without assistance and is limited to the ground floor.

    E-Print Network [OSTI]

    Edinburgh, University of

    6. Parking, Page 7. Outside Access, Page 8. Internal Access, Page 10. Reception, Page 10. Lift, Page at Pollock Halls. The nearest railway line is at Waverley Station in the city centre. The nearest bus stops

  6. LIMITED ACCESS from UNIVERSITY

    E-Print Network [OSTI]

    Babu, G. Jogesh

    Building A12 Arts Cottage F5 Bag House H3 Bank of America Career Services F7 Beard Field (Nittany Lion12 Chemistry F5 Coal Utilization Lab G8 Computer Building E7 Corn Breeding Lab B11 Dairy Complex A9

  7. Local intelligent electronic device (IED) rendering templates over limited bandwidth communication link to manage remote IED

    DOE Patents [OSTI]

    Bradetich, Ryan; Dearien, Jason A; Grussling, Barry Jakob; Remaley, Gavin

    2013-11-05

    The present disclosure provides systems and methods for remote device management. According to various embodiments, a local intelligent electronic device (IED) may be in communication with a remote IED via a limited bandwidth communication link, such as a serial link. The limited bandwidth communication link may not support traditional remote management interfaces. According to one embodiment, a local IED may present an operator with a management interface for a remote IED by rendering locally stored templates. The local IED may render the locally stored templates using sparse data obtained from the remote IED. According to various embodiments, the management interface may be a web client interface and/or an HTML interface. The bandwidth required to present a remote management interface may be significantly reduced by rendering locally stored templates rather than requesting an entire management interface from the remote IED. According to various embodiments, an IED may comprise an encryption transceiver.

  8. Proton Gradient Regulation 5-Mediated Cyclic Electron Flow under ATP-or Redox-Limited Conditions: A Study of

    E-Print Network [OSTI]

    Proton Gradient Regulation 5-Mediated Cyclic Electron Flow under ATP- or Redox-Limited Conditions.K.N.) The Chlamydomonas reinhardtii proton gradient regulation5 (Crpgr5) mutant shows phenotypic and functional traits discriminate two pathways for CEF and determine their maximum electron flow rates. The PGR5/proton gradient

  9. Optical Sideband Generation: a Longitudinal Electron Beam Diagnostic Beyond the Laser Bandwidth Resolution Limit

    E-Print Network [OSTI]

    Tilborg, J. van

    2011-01-01

    a Longitudinal Electron Beam Diagnostic Beyond the LaserBeam diagnostics, electro-optic sampling, ultra-short electron

  10. Accessing electronic correlations by half-cycle pulses and time-resolved spectroscopy

    E-Print Network [OSTI]

    Pavlyukh, Y

    2015-01-01

    Ultrashort non-resonant electromagnetic pulses applied to effective one-electron systems may operate on the electronic state as a position or momentum translation operator. As derived here, extension to many-body correlated systems exposes qualitatively new aspects. For instance, to the lowest order in the electric field intensity the action of the pulse is expressible in terms of the two-body reduced density matrix enabling thus to probe various facets of electronic correlations. As an experimental realization we propose a pump-probe scheme in which after a weak, swift "kick" by the non-resonant pulse the survival probability for remaining in the initial state is measured. This probability we correlate to the two-body reduced density matrix. Since the strength of electronic correlation is bond-length sensitive, measuring the survival probability may allow for a direct insight into the bond-dependent two-body correlation in the ground state. As an illustration, full numerical calculations for two molecular sy...

  11. A microwave resonator for limiting depth sensitivity for electron paramagnetic resonance spectroscopy of surfaces

    SciTech Connect (OSTI)

    Sidabras, Jason W.; Varanasi, Shiv K.; Hyde, James S.; Mett, Richard R.; Swarts, Steven G.; Swartz, Harold M.

    2014-10-15

    A microwave Surface Resonator Array (SRA) structure is described for use in Electron Paramagnetic Resonance (EPR) spectroscopy. The SRA has a series of anti-parallel transmission line modes that provides a region of sensitivity equal to the cross-sectional area times its depth sensitivity, which is approximately half the distance between the transmission line centers. It is shown that the quarter-wave twin-lead transmission line can be a useful element for design of microwave resonators at frequencies as high as 10 GHz. The SRA geometry is presented as a novel resonator for use in surface spectroscopy where the region of interest is either surrounded by lossy material, or the spectroscopist wishes to minimize signal from surrounding materials. One such application is in vivo spectroscopy of human finger-nails at X-band (9.5 GHz) to measure ionizing radiation dosages. In order to reduce losses associated with tissues beneath the nail that yield no EPR signal, the SRA structure is designed to limit depth sensitivity to the thickness of the fingernail. Another application, due to the resonator geometry and limited depth penetration, is surface spectroscopy in coating or material science. To test this application, a spectrum of 1.44 ?M of Mg{sup 2+} doped polystyrene 1.1 mm thick on an aluminum surface is obtained. Modeling, design, and simulations were performed using Wolfram Mathematica (Champaign, IL; v. 9.0) and Ansys High Frequency Structure Simulator (HFSS; Canonsburg, PA; v. 15.0). A micro-strip coupling circuit is designed to suppress unwanted modes and provide a balanced impedance transformation to a 50 ? coaxial input. Agreement between simulated and experimental results is shown.

  12. Solar neutrino-electron scattering as background limitation for double beta decay

    E-Print Network [OSTI]

    N. F. de Barros; K. Zuber

    2011-09-16

    The background on double beta decay searches due to elastic electron scattering of solar neutrinos of all double beta emitters with Q-value larger than 2 MeV is calculated, taking into account survival probability and flux uncertainties of solar neutrinos. This work determines the background level to be [1-2]E-7 counts /keV/kg/yr, depending on the precise Q-value of the double beta emitter. It is also shown that the background level increases dramatically if going to lower Q-values. Furthermore, studies are done for various detector systems under consideration for next generation experiments. It was found that experiments based on loaded liquid scintillator have to expect a higher background. Within the given nuclear matrix element uncertainties any approach exploring the normal hierarchy has to face this irreducible background, which is a limitation on the minimal achievable background for purely calorimetric approaches. Large scale liquid scintillator experiments might encounter this problem already while exploring the inverted hierarchy. Potential caveats by using more sophisticated experimental setups are also discussed.

  13. Resolution Limits of Electron-Beam Lithography toward the Atomic Scale

    E-Print Network [OSTI]

    Zhang, Lihua

    We investigated electron-beam lithography with an aberration-corrected scanning transmission electron microscope. We achieved 2 nm isolated feature size and 5 nm half-pitch in hydrogen silsesquioxane resist. We also analyzed ...

  14. Open Access Authorization for Thesis or Dissertation The University of South Carolina is committed to digital open access of information. Open access allows

    E-Print Network [OSTI]

    Almor, Amit

    Open Access Authorization for Thesis or Dissertation The University of South Carolina is committed a paywall limits access to public records. Our electronic repository allows the University of South Carolina signature below indicates that I understand the University of South Carolina commitment to digital open

  15. Breakdown of a Space Charge Limited Regime of a Sheath in a Weakly Collisional Plasma Bounded by Walls with Secondary Electron Emission

    E-Print Network [OSTI]

    by Walls with Secondary Electron Emission D. Sydorenko,1,* I. Kaganovich,2 Y. Raitses,2 and A. Smolyakov1 1 in particle-in-cell simulations of a hot plasma bounded by walls with secondary electron emission charge limited state even though the secondary electron emission produced by the plasma bulk electrons

  16. Access Options for Electronic Theses and Dissertations (ETDs) The Graduate School and the Libraries require that all UW theses and dissertations be submitted

    E-Print Network [OSTI]

    Hochberg, Michael

    1 Access Options for Electronic Theses and Dissertations (ETDs) Background The Graduate School. Procedure Submission must be made using the UW ETD Administrator system which is provided by the ProQuest (PQ) company. ETD Administrator offers authors a number of menu choices, most of which are described

  17. Limiting factors in sub-10 nm scanning-electron-beam lithography

    E-Print Network [OSTI]

    Berggren, Karl K.

    Achieving the highest possible resolution using scanning-electron-beam lithography (SEBL) has become an increasingly urgent problem in recent years, as advances in various nanotechnology applications [ F. S. Bates and G. ...

  18. Enabling X-ray free electron laser crystallography for challenging biological systems from a limited number of crystals

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

    Uervirojnangkoorn, Monarin; Zeldin, Oliver B.; Lyubimov, Artem Y.; Hattne, Johan; Brewster, Aaron S.; Sauter, Nicholas K.; Brunger, Axel T.; Weis, William I.

    2015-03-17

    There is considerable potential for X-ray free electron lasers (XFELs) to enable determination of macromolecular crystal structures that are difficult to solve using current synchrotron sources. Prior XFEL studies often involved the collection of thousands to millions of diffraction images, in part due to limitations of data processing methods. We implemented a data processing system based on classical post-refinement techniques, adapted to specific properties of XFEL diffraction data. When applied to XFEL data from three different proteins collected using various sample delivery systems and XFEL beam parameters, our method improved the quality of the diffraction data as well as themore »resulting refined atomic models and electron density maps. Moreover, the number of observations for a reflection necessary to assemble an accurate data set could be reduced to a few observations. These developments will help expand the applicability of XFEL crystallography to challenging biological systems, including cases where sample is limited.« less

  19. Effect of realistic metal electronic structure on the lower limit of contact resistivity of epitaxial metal-semiconductor contacts

    SciTech Connect (OSTI)

    Hegde, Ganesh Chris Bowen, R.

    2014-08-04

    The effect of realistic metal electronic structure on the lower limit of resistivity in [100] oriented n-Si is investigated using full band Density Functional Theory and Semi-Empirical Tight Binding calculations. It is shown that the “ideal metal” assumption may fail in some situations and, consequently, underestimate the lower limit of contact resistivity in n-Si by at least an order of magnitude at high doping concentrations. The mismatch in transverse momentum space in the metal and the semiconductor, the so-called “valley filtering effect,” is shown to be sensitive to the details of the transverse boundary conditions for the unit cells used. The results emphasize the need for explicit inclusion of the metal atomic and electronic structure in the atomistic modeling of transport across metal-semiconductor contacts.

  20. Web Accessibility Accessibility

    E-Print Network [OSTI]

    Oklahoma, University of

    Web Accessibility #12;Accessibility Webaim This is a pre-y prolific site that vary based on the type of web content. StaFc, content managed and dynamic web sites can benefit from our accessibility review service. Rich media

  1. Limiting electron beam current for cyclic induction acceleration in a constant guide field

    SciTech Connect (OSTI)

    Kanunnikov, V.N.

    1982-09-01

    Theoretical relations are derived for the limiting beam current in a cyclic induction accelerator (CIA) with a constant guide field. The calculations are in agreement with the available experimental data. It is shown that the limiting average beam current in a CIA is of the order of 100 microamperes, i.e., the level attained in microtrons and linear accelerators. The CIA may find industrial applications.

  2. ELECTRON HEAT FLUX IN THE SOLAR WIND: ARE WE OBSERVING THE COLLISIONAL LIMIT IN THE 1 AU DATA?

    SciTech Connect (OSTI)

    Landi, S.; Matteini, L.; Pantellini, F.

    2014-07-20

    Using statistically significant data at 1 AU, it has recently been shown (Bale et al.) that in the solar wind, when the Knudsen number K {sub T} (the ratio between the electron mean free path and the electron temperature scale height) drops below about 0.3, the electron heat flux q intensity rapidly approaches the classical collisional Spitzer-Härm limit. Using a fully kinetic model including the effect of Coulomb collisions and the expansion of the solar wind with heliocentric distance, we observe that the heat flux strength does indeed approach the collisional value for Knudsen numbers smaller than about 0.3 in very good agreement with the observations. However, closer inspection of the heat flux properties, such as its variation with the heliocentric distance and its dependence on the plasma parameters, shows that for Knudsen numbers between 0.02 and 0.3 the heat flux is not conveniently described by the Spitzer-Härm formula. We conclude that even though observations at 1 AU seem to indicate that the electron heat flux intensity approaches the collisional limit when the Knudsen drops below ?0.3, the collisional limit is not a generally valid closure for a Knudsen larger than 0.01. Moreover, the good agreement between the heat flux from our model and the heat flux from solar wind measurements in the high-Knudsen number regime seems to indicate that the heat flux at 1 AU is not constrained by electromagnetic instabilities as both wave-particle and wave-wave interactions are neglected in our calculations.

  3. Electronic Submersible Pump (ESP) Technology and Limitations with Respect to Geothermal Systems (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-09-01

    The current state of geothermal technology has limitations that hinder the expansion of utility scale power. One limitation that has been discussed by the current industry is the limitation of Electric Submersible Pump (ESP) technology. With the exception of a few geothermal fields artificial lift technology is dominated by line shaft pump (LSP) technology. LSP's utilize a pump near or below reservoir depth, which is attached to a power shaft that is attached to a motor above ground. The primary difference between an LSP and an ESP is that an ESP motor is attached directly to the pump which eliminates the power shaft. This configuration requires that the motor is submersed in the geothermal resource. ESP technology is widely used in oil production. However, the operating conditions in an oil field vary significantly from a geothermal system. One of the most notable differences when discussing artificial lift is that geothermal systems operate at significantly higher flow rates and with the potential addition of Enhanced Geothermal Systems (EGS) even greater depths. The depths and flow rates associated with geothermal systems require extreme horsepower ratings. Geothermal systems also operate in a variety of conditions including but not limited to; high temperature, high salinity, high concentrations of total dissolved solids (TDS), and non-condensable gases.

  4. Giving patients online access to their electronic primary care record: experiences and perceptions of practice staff and service users 

    E-Print Network [OSTI]

    Shand, Tim; Pagliari, Claudia; Fisher, Brian

    The Record Access Collaborative is a voluntary network of clinicians, academics, industry representatives and policymakers interested in emerging Personal Health Record technologies and their impacts on patients and health ...

  5. Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold

    E-Print Network [OSTI]

    Boriskina, Svetlana V; Hsu, Wei-Chun; Liao, Bolin; Chen, Gang

    2015-01-01

    We evaluate the limiting efficiency of full and partial solar spectrum harvesting via the process of internal photoemission in Au-semiconductor Schottky junctions. Our results based on the ab initio calculations of the electron density of states (e-DOS) reveal that the limiting efficiency of the full-spectrum Au converter based on hot electron injection is below 4%. This value is even lower than previously established limit based on the parabolic approximation of the Au electron energy bands. However, we predict limiting efficiency exceeding 10% for the hot holes collection through the Schottky junction between Au and p-type semiconductor. Furthermore, we demonstrate that such converters have more potential if used as a part of the hybrid system for harvesting high- and low-energy photons of the solar spectrum.

  6. Transition from ultrafast laser photo-electron emission to space charge limited current in a 1D gap

    E-Print Network [OSTI]

    Yangjie Liu; L. K. Ang

    2014-08-21

    A one-dimensional (1D) model has been constructed to study the transition of the time-dependent ultrafast laser photo-electron emission from a flat metallic surface to the space charge limited (SCL) current, including the effect of non-equilibrium laser heating on metals at the ultrafast time scale. At a high laser field, it is found that the space charge effect cannot be ignored and the SCL current emission is reached at a lower value predicted by a short pulse SCL current model that assumed a time-independent emission process. The threshold of the laser field to reach the SCL regime is determined over a wide range of operating parameters. The calculated results agree well with particle-in-cell (PIC) simulation. It is found that the space charge effect is more important for materials with lower work function like tungsten (4.4 eV) as compared to gold (5.4 eV). However for a flat surface, both materials will reach the space charge limited regime at the sufficiently high laser field such as $>$ 5 GV/m with a laser pulse length of tens to one hundred femtoseconds.

  7. The zero-temperature limit of the free energy density in many-electron systems at half-filling

    E-Print Network [OSTI]

    Yohei Kashima

    2015-08-30

    We prove by means of a renormalization group method that in weakly interacting many-electron systems at half-filling on a periodic hyper-cubic lattice, the free energy density uniformly converges to an analytic function of the coupling constants in the infinite-volume, zero-temperature limit if the external magnetic field has a chessboard-like flux configuration. The spatial dimension is allowed to be any number larger than 1. The system covers the Hubbard model with a nearest-neighbor hopping term, on-site interactions, exponentially decaying density-density interactions and exponentially decaying spin-spin interactions. The magnetic field must be included in the kinetic term by the Peierls substitution. The flux configuration and the sign of the nearest-neighbor density-density/spin-spin interactions can be adjusted so that the free energy density is minimum among all the flux configurations. Consequently, the minimum free energy density is proved to converge to an analytic function of the coupling constants in the infinite-volume, zero-temperature limit. These are extension of the results on a square lattice in the preceding work ([Kashima, Y., arXiv:1405.0655, to appear in "The special issue for the 20th anniversary", J. Math. Sci. Univ. Tokyo.]). We refer to lemmas proved in the reference in order to complete the proof of the main results of this paper. So this work is a continuation of the preceding work.

  8. HM-ACCESS Project | Department of Energy

    Office of Environmental Management (EM)

    Project HM-ACCESS Project Framework for the Use of Electronic Shipping Papers for the Transport of Hazardous Materials HM-ACCESS Project (Framework for the Use of Electronic...

  9. JSTOR provides electronic access to the back issues of over 270 journals published by a number of institutions and publishers. It includes journal titles from the Arts & Sciences, Business, and Language & Literature collections.

    E-Print Network [OSTI]

    Po, Lai-Man

    Search Run Run Shaw Library City University of Hong Kong 1. Enter search term(s). 2. Select an operator. 7 Access Search 1. Enter search term(s). 2. Click to search Advanced Search Optional limits Enter to combine search terms. Search will include: *Library subscribed sources only, *Links to articles

  10. Electron

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansas Nuclear ProfileMultiferroicAward | DepartmentElectron thermal

  11. Human Resources Security Access Matrix Function Training

    E-Print Network [OSTI]

    Wu, Shin-Tson

    June 2013 Human Resources Security Access Matrix Function Training Course Required Class Mode Training Course Prerequisite Security Access Form Required Contact for Additional Information Complete Electronic I-9 Forms REC001: I-9 /E-Verify Web Training OR Online OR None Electronic I-9 Security Access Form

  12. IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 18, NO. 1, JANUARY 2003 301 Quantization Resolution and Limit Cycling in

    E-Print Network [OSTI]

    Sanders, Seth

    confirming the theoretical analysis are presented. Index Terms--Analog-digital conversion, digital control with digital systems, and faster design process, as discussed in [1] and the references therein. They have and Limit Cycling in Digitally Controlled PWM Converters Angel V. Peterchev, Student Member, IEEE, and Seth

  13. Accessible buildings Moderately accessible buildings*

    E-Print Network [OSTI]

    Lee, Dongwon

    Campus neighborhood map Moderately accessible paths** Accessible building entrance via parking lot to the University Park campus. This map, provided by UAC, is designed to assist persons with disabilities in finding accessibility. Your observations and suggestions regarding architectural For more information on UAC, you can

  14. Automatic recovery of missing amplitudes and phases in tilt-limited electron crystallography of two-dimensional crystals

    SciTech Connect (OSTI)

    Gipson, Bryant R.; Stahlberg, Henning [Center for Cellular Imaging and Nano Analytics (C-CINA), Biozentrum, University Basel, WRO-1058 Mattenstrasse 26, CH-4058 Basel (Switzerland); Masiel, Daniel J.; Browning, Nigel D. [Department of Chemical Engineering and Materials Sciences, University of California at Davis, Davis, California 95616 (United States); Spence, John [Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States); Mitsuoka, Kaoru [Biomedicinal Information Research Center (BIRC), National Institute of Advanced Industrial Science and Technology (AIST), 2-3-26, Aomi, Koto-ku, Tokyo 135-0064 (Japan)

    2011-07-15

    Electron crystallography of 2D protein crystals provides a powerful tool for the determination of membrane protein structure. In this method, data is acquired in the Fourier domain as randomly sampled, uncoupled, amplitudes and phases. Due to physical constraints on specimen tilting, those Fourier data show a vast un-sampled ''missing cone'' of information, producing resolution loss in the direction perpendicular to the membrane plane. Based on the flexible language of projection onto sets, we provide a full solution for these problems with a projective constraint optimization algorithm that, for sufficiently oversampled data, produces complete recovery of unmeasured data in the missing cone. We apply this method to an experimental data set of Bacteriorhodopsin and show that, in addition to producing superior results compared to traditional reconstruction methods, full, reproducible, recovery of the missing cone from noisy data is possible. Finally, we present an automatic implementation of the refinement routine as open source, freely distributed, software that will be included in our 2dx software package.

  15. Building Access Policy Responsible Administrative Unit: Finance & Administration

    E-Print Network [OSTI]

    Access Manager: Web-based software that Building Proctors will use to grant or deny electronic building

  16. NREL: Request for Proposals (limited access)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS - Simple Model of theWind ResourceRequests

  17. Accessing PDSF

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional Knowledge KiosksAbout UsAboutWeb Policies »FacilitiesAccessing

  18. Accessibility | NREL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access toServices

  19. Gate Access

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeatureCleanperformanceCareersGate Access Gate

  20. Remote Access

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

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

  1. open access journal Public Health

    E-Print Network [OSTI]

    Oakley, Jeremy

    open access journal Journal of Public Health in AfricaeISSN 2038-9930 i www the Journal of Public Health in Africa is a peer-reviewed, electronic quarterly, that focuses on health issues in the African continent. The journal editors seek high quality original articles on public health related issues

  2. Internet architecture Access networks

    E-Print Network [OSTI]

    architecture (1) router PC server wireless laptop smartphone Wired Communication links in router)/wireless access point Ethernet Wireless access point Wireless laptops Router links " connect end systems/routers/switches/access points " fiber, copper and radio " transmission rate

  3. Access Nets: Modeling Access to Physical Robert Frohardt, Bor-Yuh Evan Chang, and Sriram Sankaranarayanan

    E-Print Network [OSTI]

    Chang, Bor-Yuh Evan

    Access Nets: Modeling Access to Physical Spaces Robert Frohardt, Bor-Yuh Evan Chang, and Sriram) Robert Frohardt, Bor-Yuh Evan Chang, and Sriram Sankaranarayanan University of Colorado, Boulder, Colorado, USA {frohardt,bec,srirams}@cs.colorado.edu Abstract. Electronic, software-managed mechanisms

  4. Electronics 2014, 3, 624-635; doi:10.3390/electronics3040624 electronics

    E-Print Network [OSTI]

    Chen, Ray

    Article Towards Realizing High-Throughput, Roll-to-Roll Manufacturing of Flexible Electronic Systems2R) tracker systems are utilized for large volume flexible electronic device manufacturing/min. Keywords: roll-to-roll; ink-jet printing; flexible electronics; alignment OPEN ACCESS #12;Electronics 2014

  5. Subject Access to Your Information 

    E-Print Network [OSTI]

    Tucker, Sandra

    2006-08-01

    =ISO-8859-1 Subject Access to Your Information Sandy Tucker Texas A&M University Libraries August 1, 2006 Second International Symposium on Transportation Technology Transfer Introduction You have packages ? books, pamphlets, files, electronic... Lists Transportation Research Thesaurus Your own list Use a Short List or a Long List of Terms? If you have a small collection, a short list of terms is appropriate. If you have a large collection, a longer list of more specific terms...

  6. Contribution of alloy clustering to limiting the two-dimensional electron gas mobility in AlGaN/GaN and InAlN/GaN heterostructures: Theory and experiment

    SciTech Connect (OSTI)

    Ahmadi, Elaheh; Mishra, Umesh K. [Electrical and Computer Engineering Department, University of California, Santa Barbara, California 93106 (United States); Chalabi, Hamidreza [Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305 (United States); Kaun, Stephen W.; Shivaraman, Ravi; Speck, James S. [Materials Department, University of California, Santa Barbara, California 93106 (United States)

    2014-10-07

    The influence of alloy clustering on fluctuations in the ground state energy of the two-dimensional electron gas (2DEG) in AlGaN/GaN and InAlN/GaN heterostructures is studied. We show that because of these fluctuations, alloy clustering degrades the mobility even when the 2DEG wavefunction does not penetrate the alloy barrier unlike alloy disorder scattering. A comparison between the results obtained for AlGaN/GaN and InAlN/GaN heterostructures shows that alloy clustering limits the 2DEG mobility to a greater degree in InAlN/GaN heterostructures. Our study also reveals that the inclusion of an AlN interlayer increases the limiting mobility from alloy clustering. Moreover, Atom probe tomography is used to demonstrate the random nature of the fluctuations in the alloy composition.

  7. Open Access Task Force Open Access to

    E-Print Network [OSTI]

    Jiang, Huiqiang

    Libraries Initiative launched by National Science Foundation; Social Sciences Research Network (SSRN Library System rgmiller@pitt.edu #12;Open Access Task Force Open Access is... · A family of copyright · The only constraint on reproduction and distribution, and the only role for copyright in this domain

  8. Accessing Online COR Training

    Office of Energy Efficiency and Renewable Energy (EERE)

    Contracting Officer’s Representative (COR) training is now be available in an online format. "Accessing Online COR Training" provides a step-by-step guide to access the online COR course. 

  9. Top Tips for Accessing Oxford's Information Resources

    E-Print Network [OSTI]

    Oxford, University of

    Top Tips for Accessing Oxford's Information Resources And How Brasenose College Library Fits In #12, electronic journals and books Top Tip 1: Attend the Bodleian induction sessions for your subject #12;Oxford ­ departmental, faculty, college Top Tip 2: Explore smaller libraries ­ www

  10. Top Tips for Accessing Oxford's Information Resources

    E-Print Network [OSTI]

    Oxford, University of

    Top Tips for Accessing Oxford's Information Resources And How Brasenose College Library Fits In #12, electronic journals and books Top Tip 1: Attend the induction session in your departmental library #12;Oxford ­ departmental, faculty, college Top Tip 2: Explore smaller libraries ­ www

  11. Bharat Electronics Limited BEL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformation BeaufortBentMichigan:Greece) Jump to: navigation,BeyWatch

  12. Central Electronics Limited CEL | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal Gradient Holes JumpHillsInformation

  13. RE: NBP RFI: Data Access In the Matter of Implementing the National...

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

    and other entities to empower consumers (and perhaps others) through access to detailed energy information in electronic form--including real-time information from smart meters,...

  14. Suppression of x-rays generated by runaway electrons in ATF

    SciTech Connect (OSTI)

    Rasmussen, D.A.; England, A.C.; Eberle, C.C.; Devan, W.R.; Harris, J.H.; Jernigan, T.C.; Kindsfather, R.R.; Morris, R.N.; Murakami, M.; Neilson, G.H.

    1987-01-01

    X-ray emission from runaway electrons on ATF is a serious issue. Runaway suppression techniques used on Heliotron-E are not adequate for ATF. Three approaches have been developed to suppress runaway production. Monitoring devices have been installed in occupied areas and personnel access and exposure will be limited. Additional shielding will be added as required. These systems will be ready for installation and testing on ATF prior to commissioning or first plasma operation.

  15. Guidelines for left-turn bays at unsignalized access locations on arterial roadways 

    E-Print Network [OSTI]

    Hawley, Patrick Emmett

    1994-01-01

    It has long been recognized that effective access management along arterial streets can alleviate traffic congestion. A major goal within access management is to limit the speed differential between turning and through vehicles. Left-turn bays...

  16. ADVANCES IN ELECTRONICS AND ELECTRON PHYSICS, VOL. 83 LVSEM for High Resolution Topographic and Density

    E-Print Network [OSTI]

    Pawley, James

    ADVANCES IN ELECTRONICS AND ELECTRON PHYSICS, VOL. 83 LVSEM for High Resolution Topographic Surface-Imaging Scanning Electron Microscope 205 C. Electrons as Probes in Scanning Microscopes 205 D. Limitations Associated with the Use of Electrons as the Probing Radiation 206 E. Response to These Limitations

  17. The Design and Use of Limited Access Privilege Programs

    E-Print Network [OSTI]

    ­ Office of Policy From technical contributions by the editors and: Soren Anderson; Mark Fina; Adam Tromble. NOAA Technical Memorandum NMFS-F/SPO-86 November 2007 U.S. Department of Commerce Carlos M, North Pacific Fishery Management Council staff; Adam Issenberg, NOAA General Counsel for Fisheries

  18. Identity and Access Management: Access Management Survey 1 Access Management Survey Questions

    E-Print Network [OSTI]

    Maroncelli, Mark

    Identity and Access Management: Access Management Survey 1 Access Management Survey Questions The Identity and Access Management (IAM) Technical Architect Group (TAG) was formed by Kevin Morooney, the vice assistance with defining the requirements for Access Management, as outlined in Strategic Recommendations 4

  19. ACCESS Magazine Fall 2006

    E-Print Network [OSTI]

    2006-01-01

    of cars whose owners have prepaid to enter the CCZ; privateowners who have not prepaid and do not pay by midnight areA LMANAC : Unlimited Access: Prepaid Transit at Universities

  20. Accessibility HANDBOOK AND

    E-Print Network [OSTI]

    Accessibility Awareness HANDBOOK AND LEARNING MODULE A Guide for Faculty and Staff #12;Table Awareness Handbook and Learning Module 1 Sometimes the worst thing about having a disability is that people

  1. Accessing the spoken word 

    E-Print Network [OSTI]

    Goldman, Jerry; Renals, Steve; Bird, Steven; de Jong, Franciska; Federico, Marcello; Fleischhauer, Carl; Kornbluh, Mark; Lamel, Lori; Oard, Douglas W; Stewart, Claire; Wright, Richard

    Spoken-word audio collections cover many domains, including radio and television broadcasts, oral narratives, governmental proceedings, lectures, and telephone conversations. The collection, access, and preservation of such data is stimulated...

  2. Molecular-Frame Angular Distributions of Resonant Auger Electrons

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

    Wednesday, 27 May 2009 00:00 Molecular-frame electron angular distribution (MFAD) measurements provide access to an unprecedented level of detailed information about phenomena...

  3. Accessible Parking Motorcycle Parking

    E-Print Network [OSTI]

    Nanyes, Ollie

    Hartmann Center Comstock Hall Holmes Main Street Parking Deck Transitional Parking Lot Lovelace JobstNorth Accessible Parking Motorcycle Parking Visitors Commuter Student Resident Student Resident St & Staff University Vehicles © Bradley University · 06/18/14 Emergency Phone Parking Legend FIJI

  4. Library Guide Access ... 3

    E-Print Network [OSTI]

    Steiner, Ullrich

    ____________________________ Library Guide 2012-2013 #12;Contents Access ... 3 Finding things ... 4-6 Layout and classification... 7 Floor plans ... 8-9 Borrowing things ... 10 Renewing and returning things;Sidney Sussex Library Guide 2012-2013 Welcome to the Richard Powell Library Tel: (01223) 338852 e

  5. Library Guide Access ... 3

    E-Print Network [OSTI]

    Steiner, Ullrich

    ____________________________ Library Guide 2014-2015 #12;Contents Access ... 3 Finding things ... 4-6 Layout and classification... 7 Floor plans ... 8-9 Borrowing things ... 10 Renewing and returning things;Sidney Sussex Library Guide 2014-2015 Welcome to the Richard Powell Library Tel: (01223) 338852 e

  6. Deregulation Direct Access

    E-Print Network [OSTI]

    Kammen, Daniel M.

    AB 1890 AB1X Aggregator Blue Book CEC CPUC CTC Deregulation Direct Access Divestiture DWR EOB EPAct an initiative on the ballot in response to the energy crisis. www.ftcr.org ESPs that sell electricity generated of peak demand. Investor Owned Utility. A private electric utility (owned by shareholders) regulated

  7. Special Access Programs

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

    2011-03-29

    This Order is for OFFICIAL USE ONLY and will not be distributed on the Directives' Portal. For distribution, please contact the Executive Secretary of the Special Access Program Oversight Committee at (202) 586-3345. Does not cancel/supersede other directives.

  8. Access for All 

    E-Print Network [OSTI]

    Stearns, Linda Lea Merenda

    2012-07-16

    district to determine if there is fair and equitable access for all students. The paper contains two major components. The first is quantitative study of the four entrance requirements for 8th grade Algebra I Pre-AP at a central Texas middle school...

  9. Electronic Discovery and the Adoption of Information Technology

    E-Print Network [OSTI]

    Tucker, Catherine Elizabeth

    After firms adopt electronic information and communication technologies, their decision-making leaves a trail of electronic information that may be more extensive and accessible than a paper trail. We ask how the expected ...

  10. Electron radiography

    DOE Patents [OSTI]

    Merrill, Frank E.; Morris, Christopher

    2005-05-17

    A system capable of performing radiography using a beam of electrons. Diffuser means receive a beam of electrons and diffuse the electrons before they enter first matching quadrupoles where the diffused electrons are focused prior to the diffused electrons entering an object. First imaging quadrupoles receive the focused diffused electrons after the focused diffused electrons have been scattered by the object for focusing the scattered electrons. Collimator means receive the scattered electrons and remove scattered electrons that have scattered to large angles. Second imaging quadrupoles receive the collimated scattered electrons and refocus the collimated scattered electrons and map the focused collimated scattered electrons to transverse locations on an image plane representative of the electrons' positions in the object.

  11. Magnetic Nanostructures for post-CMOS Electronics

    E-Print Network [OSTI]

    -high density storage devices. Moreover, the semiconductor industry is looking beyond conventional CMOSMagnetic Nanostructures for post-CMOS Electronics NANOMATERIALS Our goal is to address storage technologies, notably magnetoresistive random access memory and bit-patterned media for ultra

  12. ACCESS Magazine Fall 2011

    E-Print Network [OSTI]

    2011-01-01

    might reduce or remove minimum parking requirements oreven limit parking. A mobility approach would promoteBlumenberg Cashing in on Curb Parking Donald C. Shoup Do New

  13. OCRWM INFOLINK: an electronic bulletin board

    SciTech Connect (OSTI)

    Not Available

    1985-12-01

    This Users' Manual provides instructions for access to OCRWM INFOLINK (an electronic bulletin board). Ready access is provided to texts of: press releases; fact sheets/backgrounders; congressional questions and answers; congressional testimony; speeches; schedules (milestones, meetings, and activities); and miscellaneous announcements.

  14. Electronic bulletin board. OCRWM INFOLINK. Revision

    SciTech Connect (OSTI)

    Not Available

    1986-04-01

    This user's manual provides instructions for access to OCRWM INFOLINK (an electronic bulletin board). INFOLINK provides current program information and access to texts of: press releases; fact sheets/backgrounders; comgressional questions and answers; congressional testimony; speeches; schedules (milestones, meetings, and activities); and miscellaneous announcements.

  15. Access Management Software Requirements Specification

    E-Print Network [OSTI]

    Maroncelli, Mark

    · Access to directory data · Emergency Rehire · Multiple IDs · Deceased Employee · Outreach Registration and Abbreviations Abbreviation Definition Group Collection of people who exist in the Penn State Directory. Role · Employee Confidentiality · Provisioning of an employee's digital Identity · Student early access

  16. H:\\ETD\\Submissions to Library\\How to Access UA Theses and Dissertations.docx Page 1 How to Access UA Theses and Dissertations

    E-Print Network [OSTI]

    Carver, Jeffrey C.

    H:\\ETD\\Submissions to Library\\How to Access UA Theses and Dissertations.docx Page 1 HowElectronic Submission (graduated before May 2009) Prior to the introduction of ETD submission at UA, all manuscripts on the PDF icon to open the thesis or dissertation. #12; H:\\ETD\\Submissions to Library\\How to Access UA

  17. Precision electron polarimetry

    SciTech Connect (OSTI)

    Chudakov, Eugene A.

    2013-11-01

    A new generation of precise Parity-Violating experiments will require a sub-percent accuracy of electron beam polarimetry. Compton polarimetry can provide such accuracy at high energies, but at a few hundred MeV the small analyzing power limits the sensitivity. M{\\o}ller polarimetry provides a high analyzing power independent on the beam energy, but is limited by the properties of the polarized targets commonly used. Options for precision polarimetry at ~300 MeV will be discussed, in particular a proposal to use ultra-cold atomic hydrogen traps to provide a 100\\%-polarized electron target for M{\\o}ller polarimetry.

  18. Improving Access to E-Journals and Databases at the MIT Libraries: Building a Database-Backed Web Site Called "Vera"

    E-Print Network [OSTI]

    Hennig, Nicole

    2002-01-01

    The MIT Libraries provide access to databases and electronic journals via the online catalog and the web. The Vera database was created in order to improve public access to a growing number of resources listed on web pages ...

  19. Access to the ALS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAboutAcceleratingthYourAccess to the

  20. Access to the ALS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access to the ALS

  1. Accessibility - Hanford Site

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access to

  2. Quantum Random Access Codes using Single $d$-level Systems

    E-Print Network [OSTI]

    Armin Tavakoli; Alley Hameedi; Breno Marques; Mohamed Bourennane

    2015-04-30

    Random access codes (RACs) are used by a party to despite limited communication access an arbitrary subset of information held by another party. Quantum resources are known to enable RACs that break classical limitations. Here, we study quantum and classical RACs with high-level communication. We derive average performances of classical RACs and present families of high-level quantum RACs. Our results show that high-level quantum systems can significantly increase the advantage of quantum RACs over the classical counterparts. We demonstrate our findings in an experimental realization of a quantum RAC with four-level communication.

  3. Speed control system for an access gate

    DOE Patents [OSTI]

    Bzorgi, Fariborz M. (Knoxville, TN)

    2012-03-20

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

  4. 0-7803-8906-9/05/$20.00 2005 IEEE 2005 Electronic Components and Technology Conference Exploring the Limits of Low Cost, Organics-Compatible High-k Ceramic Thin-Films

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    the Limits of Low Cost, Organics-Compatible High-k Ceramic Thin-Films for Embedded Decoupling Applications to integrate them. Ceramic-polymer nanocomposite approach pursued by various research groups over the past today are investigating ceramic-based thin films (

  5. Tamm floating electron in nanodiamond

    E-Print Network [OSTI]

    Denisov, Ivan A

    2011-01-01

    Nanodiamond exhibits unpaired electrons in magnetization, EPR, NMR and Auger relaxation. Wave functions and energies of bounded electron in the nanodiamond crystal have been calculated. Direct evidence that unpaired electrons are self-condition of nanodiamond as a limited crystal according to the Tamm theory of surface states have been proved from quantum mechanical analysis. The surface electrons floating over the nanodiamond give a paramagnetic response and stabilize the nanoparticle at small range of sizes. The spin of the floating electron is possibly to use for floating point calculation in further quantum computers on the base of nanodiamond qubits.

  6. Tamm floating electron in nanodiamond

    E-Print Network [OSTI]

    Ivan A. Denisov; Peter I. Belobrov

    2011-11-12

    Nanodiamond exhibits unpaired electrons in magnetization, EPR, NMR and Auger relaxation. Wave functions and eigenenergies of a bound electron in a nanodiamond crystal have been calculated. It has been proved by using quantum mechanical analysis that unpaired electrons are self-condition of a nanodiamond as a limited crystal according to Tamm theory of surface states. The surface electron floating over a nanodiamond gives paramagnetic response and stabilizes the nanoparticle at small range of size. Possibly the spin of the floating electron can be used for floating point calculation in future quantum computers on the base of nanodiamond qubits.

  7. A survey on the use of relevance feedback for information access systems

    E-Print Network [OSTI]

    Lalmas, Mounia

    1 A survey on the use of relevance feedback for information access systems Ian Ruthven Department Information retrieval (IR) systems allow users to access large amounts of electronically stored information, segments of video or speech samples. A number of features distinguish IR systems from other information

  8. Vehicle barrier with access delay

    DOE Patents [OSTI]

    Swahlan, David J; Wilke, Jason

    2013-09-03

    An access delay vehicle barrier for stopping unauthorized entry into secure areas by a vehicle ramming attack includes access delay features for preventing and/or delaying an adversary from defeating or compromising the barrier. A horizontally deployed barrier member can include an exterior steel casing, an interior steel reinforcing member and access delay members disposed within the casing and between the casing and the interior reinforcing member. Access delay members can include wooden structural lumber, concrete and/or polymeric members that in combination with the exterior casing and interior reinforcing member act cooperatively to impair an adversarial attach by thermal, mechanical and/or explosive tools.

  9. Information Access Router for Integrated Information Access System Koji Murakami

    E-Print Network [OSTI]

    Information Access Router for Integrated Information Access System Koji Murakami Department System (IIAS) that accepts diverse kinds of questions and provides the requested information in the most will report on the implementation of one important com- ponent of the system, the Information Ac- cess Router

  10. TABLE OF CONTENTS Safe Access

    E-Print Network [OSTI]

    US Army Corps of Engineers

    , construction, and maintenance of the means of access, and b. Erection and dismantling procedures of scaffolds, including provisions for providing fall protection (FP) during the erection or dismantling when the erection or dismantling involves work at heights. > See Sections 21.K.02 and 22.A.03. 24.A.03 Job-made means of access

  11. Remote direct memory access

    DOE Patents [OSTI]

    Archer, Charles J.; Blocksome, Michael A.

    2012-12-11

    Methods, parallel computers, and computer program products are disclosed for remote direct memory access. Embodiments include transmitting, from an origin DMA engine on an origin compute node to a plurality target DMA engines on target compute nodes, a request to send message, the request to send message specifying a data to be transferred from the origin DMA engine to data storage on each target compute node; receiving, by each target DMA engine on each target compute node, the request to send message; preparing, by each target DMA engine, to store data according to the data storage reference and the data length, including assigning a base storage address for the data storage reference; sending, by one or more of the target DMA engines, an acknowledgment message acknowledging that all the target DMA engines are prepared to receive a data transmission from the origin DMA engine; receiving, by the origin DMA engine, the acknowledgement message from the one or more of the target DMA engines; and transferring, by the origin DMA engine, data to data storage on each of the target compute nodes according to the data storage reference using a single direct put operation.

  12. A quantum access network

    E-Print Network [OSTI]

    Bernd Fröhlich; James F. Dynes; Marco Lucamarini; Andrew W. Sharpe; Zhiliang Yuan; Andrew J. Shields

    2014-09-02

    The theoretically proven security of quantum key distribution (QKD) could revolutionise how information exchange is protected in the future. Several field tests of QKD have proven it to be a reliable technology for cryptographic key exchange and have demonstrated nodal networks of point-to-point links. However, so far no convincing answer has been given to the question of how to extend the scope of QKD beyond niche applications in dedicated high security networks. Here we show that adopting simple and cost-effective telecommunication technologies to form a quantum access network can greatly expand the number of users in quantum networks and therefore vastly broaden their appeal. We are able to demonstrate that a high-speed single-photon detector positioned at a network node can be shared between up to 64 users for exchanging secret keys with the node, thereby significantly reducing the hardware requirements for each user added to the network. This point-to-multipoint architecture removes one of the main obstacles restricting the widespread application of QKD. It presents a viable method for realising multi-user QKD networks with resource efficiency and brings QKD closer to becoming the first widespread technology based on quantum physics.

  13. Distance-based accessibility indices

    E-Print Network [OSTI]

    Csató, László

    2015-01-01

    The paper attempts to develop a suitable accessibility index for networks where each link has a value such that a smaller number is preferred like distance, cost, or travel time. A measure called distance sum is characterized by three independent properties: anonymity, an appropriately chosen independence axiom, and dominance preservation, which requires that a node not far to any other is at least as accessible. We argue for the need of eliminating the independence property in certain applications. Therefore generalized distance sum, a family of accessibility indices, will be suggested. It is linear, considers the accessibility of vertices besides their distances and depends on a parameter in order to control its deviation from distance sum. Generalized distance sum is anonymous and satisfies dominance preservation if its parameter meets a sufficient condition. Two detailed examples demonstrate its ability to reflect the vulnerability of accessibility to link disruptions.

  14. Coherent electron cooling

    SciTech Connect (OSTI)

    Litvinenko,V.

    2009-05-04

    Cooling intense high-energy hadron beams remains a major challenge in modern accelerator physics. Synchrotron radiation is still too feeble, while the efficiency of two other cooling methods, stochastic and electron, falls rapidly either at high bunch intensities (i.e. stochastic of protons) or at high energies (e-cooling). In this talk a specific scheme of a unique cooling technique, Coherent Electron Cooling, will be discussed. The idea of coherent electron cooling using electron beam instabilities was suggested by Derbenev in the early 1980s, but the scheme presented in this talk, with cooling times under an hour for 7 TeV protons in the LHC, would be possible only with present-day accelerator technology. This talk will discuss the principles and the main limitations of the Coherent Electron Cooling process. The talk will describe the main system components, based on a high-gain free electron laser driven by an energy recovery linac, and will present some numerical examples for ions and protons in RHIC and the LHC and for electron-hadron options for these colliders. BNL plans a demonstration of the idea in the near future.

  15. Access Digital Library, Search, News and more

    E-Print Network [OSTI]

    Goodrich, Lisa V.

    [General] Access Digital Library, Search, News and more [Education] Access MyCourses content [Research] Access Digital Library, NCBI Blast and more [Personal] Access your portable bookmarks using My and 500 textbooks via the Digital Library, one click access to NCBI Blast sequence databases. [General

  16. HRMS User Access Add / Drop Form (Please print or type the information -(updated 6/11)

    E-Print Network [OSTI]

    Oklahoma, University of

    (s) Added: Security Administrator: Date: #12;Terminology Security - Allows or limits access to information a Departmental User or Reporting Role in order to have access to the Account Number Security information. Roles be assigned the same Time Entry Preparer Role. Definitions of Users' Roles For Security Role Information

  17. Fall Graduation Access Information Accessibility, Wheelchairs, and Disability

    E-Print Network [OSTI]

    needs parking pass" on the dashboard of the car. The first two parking bays in the lot nearest Cassell in the portal areas. The band platform area is not accessible for wheelchairs (between Aisles 11 and 13). #12

  18. A brightness exceeding simulated Langmuir limit

    SciTech Connect (OSTI)

    Nakasuji, Mamoru

    2013-08-15

    When an excitation of the first lens determines a beam is parallel beam, a brightness that is 100 times higher than Langmuir limit is measured experimentally, where Langmuir limits are estimated using a simulated axial cathode current density which is simulated based on a measured emission current. The measured brightness is comparable to Langmuir limit, when the lens excitation is such that an image position is slightly shorter than a lens position. Previously measured values of brightness for cathode apical radii of curvature 20, 60, 120, 240, and 480 ?m were 8.7, 5.3, 3.3, 2.4, and 3.9 times higher than their corresponding Langmuir limits, respectively, in this experiment, the lens excitation was such that the lens and the image positions were 180 mm and 400 mm, respectively. From these measured brightness for three different lens excitation conditions, it is concluded that the brightness depends on the first lens excitation. For the electron gun operated in a space charge limited condition, some of the electrons emitted from the cathode are returned to the cathode without having crossed a virtual cathode. Therefore, method that assumes a Langmuir limit defining method using a Maxwellian distribution of electron velocities may need to be revised. For the condition in which the values of the exceeding the Langmuir limit are measured, the simulated trajectories of electrons that are emitted from the cathode do not cross the optical axis at the crossover, thus the law of sines may not be valid for high brightness electron beam systems.

  19. U-205: RSA Access Manager Session Replay Flaw Lets Remote Users Access the System

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in RSA Access Manager. A remote user can gain access to the target system.

  20. ACADEMIC AFFAIRS ACCESS AND ADMINISTRATION

    E-Print Network [OSTI]

    Arnold, Elizabeth A.

    , Accounting Operations & Disbursements Copy Centers Dining Services Facilities Management Finance Human & Reporting Prospect Research Quality Assurance Campaign Management College Engagement Donor RelationsACADEMIC AFFAIRS ACCESS AND ENROLLMENT MANAGEMENT ADMINISTRATION AND FINANCE STUDENT AFFAIRS

  1. Excitation, detection, and electrostatic manipulation of terahertz-frequency range plasmons in a two-dimensional electron system

    E-Print Network [OSTI]

    Wu, Jingbo; Wood, Christopher D; Mistry, Divyang; Li, Lianhe; Muchenje, Wilson; Rosamond, Mark C; Chen, Li; Linfield, Edmund H; Davies, A Giles; Cunningham, John E

    2015-01-01

    Terahertz time domain spectroscopy employing free-space radiation has frequently been used to probe the elementary excitations of low-dimensional systems. The diffraction limit blocks its use for the in-plane study of individual laterally defined nanostructures, however. Here, we demonstrate a planar terahertz-frequency plasmonic circuit in which photoconductive material is monolithically integrated with a two-dimensional electron system. Plasmons with a broad spectral range (up to ~400 GHz) are excited by injecting picosecond-duration pulses, generated and detected by a photoconductive semiconductor, into a high mobility two-dimensional electron system. Using voltage modulation of a Schottky gate overlying the two-dimensional electron system, we form a tuneable plasmonic cavity, and observe electrostatic manipulation of the plasmon resonances. Our technique offers a direct route to access the picosecond dynamics of confined transport in a broad range of lateral nanostructures.

  2. Electron Bernstein Wave Research on CDX-U and NSTX

    SciTech Connect (OSTI)

    Taylor, G.; Efthimion, P.C.; Jones, B.; Hosea, J.C.; Kaita, R.; LeBlanc, B.P.; Majeski, R.; Munsat, T.; Phillips, C.K.; Spaleta, J.; Wilson, J.R.; Rasmussen, D.; Bell, G.; Bigelow, T.S.; Carter, M.D.; Swain, D.W.; Wilgen, J.B.; Ram, A.K.; Bers, A.; Harvey, R.W.; and Forest, C.B.

    2001-05-18

    Mode-converted electron Bernstein waves (EBWs) potentially allow the measurement of local electron temperature (Te) and the implementation of local heating and current drive in spherical torus (ST) devices, which are not directly accessible to low harmonic electron cyclotron waves. This paper reports on the measurement of X-mode radiation mode-converted from EBWs observed normal to the magnetic field on the midplane of the Current Drive Experiment-Upgrade (CDX-U) and the National Spherical Torus Experiment (NSTX) spherical torus plasmas. The radiation temperature of the EBW emission was compared to Te measured by Thomson scattering and Langmuir probes. EBW mode-conversion efficiencies of over 20% were measured on both CDX-U and NSTX. Sudden increases of mode-conversion efficiency, of over a factor of three, were observed at high-confinement-mode transitions on NSTX, when the measured edge density profile steepened. The EBW mode-conversion efficiency was found to depend on the density gradient at the mode-conversion layer in the plasma scrape-off, consistent with theoretical predictions. The EBW emission source was determined by a perturbation technique to be localized at the electron cyclotron resonance layer and was successfully used for radial transport studies. Recently, a new in-vessel antenna and Langmuir probe array were installed on CDX-U to better characterize and enhance the EBW mode-conversion process. The probe incorporates a local adjustable limiter to control and maximize the mode-conversion efficiency in front of the antenna by modifying the density profile in the plasma scrape-off where fundamental EBW mode conversion occurs. Initial results show that the mode-conversion efficiency can be increased to {approximately}100% when the local limiter is inserted near the mode-conversion layer. Plans for future EBW research, including EBW heating and current-drive studies, are discussed.

  3. Extending the Upper Temperature Limit for Life

    E-Print Network [OSTI]

    Lovley, Derek

    ) un- der N2-CO2 (80:20) in sealed culture tubes that con- tained formate (10 mM) as the electron donor that permit strain 121 to grow at such high temperatures are unknown. It is gen- erally assumed that the upperExtending the Upper Temperature Limit for Life Kazem Kashefi and Derek R. Lovley* The upper

  4. Forests for People Access, recreation & tourism

    E-Print Network [OSTI]

    Strategy Forests for People Access, recreation & tourism on the national forest estate #12;#12;Access, recreation and tourism on the national forest estate | 3 Forests for People Access, recreation and tourism on the national forest estate Setting the scene Everyone has a right of responsible access

  5. LOCH: Open Access Implementation Responsibility Matrix 

    E-Print Network [OSTI]

    Krzak, Anna

    2015-02-05

    Draft Responsibility Matrix for College of Medicine and Veterinary Medicine for REF Open Access requirements implementation.

  6. PennAccess: Towne Building Entrance Information

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    PennAccess: Towne Building Entrance Information: 220 South 33rd Street . Philadelphia . PA . 19104 1. Towne Building is accessible through the main entrance to Levine Hall off Chancellor Walk. This entrance does not access the basement of the Towne Building. 2. There is also access through the Levine

  7. Wind Access and Permitting Law

    Broader source: Energy.gov [DOE]

    The law also defines a limited set of reasonable restrictions that governments and associations are permitted to use in regulating residential wind energy systems. Any limitations put in place may...

  8. LHAPDF6: parton density access in the LHC precision era

    E-Print Network [OSTI]

    Andy Buckley; James Ferrando; Stephen Lloyd; Karl Nordstrom; Ben Page; Martin Ruefenacht; Marek Schoenherr; Graeme Watt

    2015-03-05

    The Fortran LHAPDF library has been a long-term workhorse in particle physics, providing standardised access to parton density functions for experimental and phenomenological purposes alike, following on from the venerable PDFLIB package. During Run 1 of the LHC, however, several fundamental limitations in LHAPDF's design have became deeply problematic, restricting the usability of the library for important physics-study procedures and providing dangerous avenues by which to silently obtain incorrect results. In this paper we present the LHAPDF 6 library, a ground-up re-engineering of the PDFLIB/LHAPDF paradigm for PDF access which removes all limits on use of concurrent PDF sets, massively reduces static memory requirements, offers improved CPU performance, and fixes fundamental bugs in multi-set access to PDF metadata. The new design, restricted for now to interpolated PDFs, uses centralised numerical routines and a powerful cascading metadata system to decouple software releases from provision of new PDF data and allow completely general parton content. More than 200 PDF sets have been migrated from LHAPDF 5 to the new universal data format, via a stringent quality control procedure. LHAPDF 6 is supported by many Monte Carlo generators and other physics programs, in some cases via a full set of compatibility routines, and is recommended for the demanding PDF access needs of LHC Run 2 and beyond.

  9. Cybersecurity Framework AccessControl

    E-Print Network [OSTI]

    Cybersecurity Framework AccessControl Policy Machine Cloud Computing Cryptography Evaluation Guidelines Standards Systems SecurityPractices Critical Infrastructure Verification Security Controls Assets-170 Computer Security Division 2013 Annual Report #12;#12;NIST Special Publication 800-170 Computer Security

  10. RESTRICTED ACCESS to Groat Road

    E-Print Network [OSTI]

    MacMillan, Andrew

    RESTRICTED ACCESS to Dudely B Menzies Bridge to Kinsmen Park to High Level Bridge to Groat Road 89 Ave Edinboro Road Saskatchewan Drive Saskatchewan Drive Saskatchewan Drive 88 Corbett Field West Aberhart Centre Childcare Centre South Field Car Park Thermal Energy Storage Corbett Hall Canadian Blood

  11. Copyright 2009 ARM Limited. All rights reserved. ARM DHT 0002A

    E-Print Network [OSTI]

    Whaley, R. Clint

    Copyright © 2009 ARM Limited. All rights reserved. ARM DHT 0002A Introducing NEON TM Development Article #12;ii Copyright © 2009 ARM Limited. All rights reserved. ARM DHT 0002A Non-Confidential Unrestricted Access Introducing NEON Development Article Copyright © 2009 ARM Limited. All rights reserved

  12. Electron tube

    DOE Patents [OSTI]

    Suyama, Motohiro (Hamamatsu, JP); Fukasawa, Atsuhito (Hamamatsu, JP); Arisaka, Katsushi (Los Angeles, CA); Wang, Hanguo (North Hills, CA)

    2011-12-20

    An electron tube of the present invention includes: a vacuum vessel including a face plate portion made of synthetic silica and having a surface on which a photoelectric surface is provided, a stem portion arranged facing the photoelectric surface and made of synthetic silica, and a side tube portion having one end connected to the face plate portion and the other end connected to the stem portion and made of synthetic silica; a projection portion arranged in the vacuum vessel, extending from the stem portion toward the photoelectric surface, and made of synthetic silica; and an electron detector arranged on the projection portion, for detecting electrons from the photoelectric surface, and made of silicon.

  13. Metrology for electron-beam lithography and resist contrast at the sub-10 nm scale

    E-Print Network [OSTI]

    Duan, Huigao

    Exploring the resolution limit of electron-beam lithography is of great interest both scientifically and technologically. However, when electron-beam lithography approaches its resolution limit, imaging and metrology of ...

  14. Electronic Fireflies

    E-Print Network [OSTI]

    Hacker, Randi; Greene, Megan

    2009-01-28

    . The Japanese: firefly connection goes back to the 8th Century when poets used them to represent human passions. But pollution and development have depleted the number of fireflies. So what's a New Year's reveler to do? Buy Denshi Hotaru, life-sized, electronic...

  15. Date Revised: 2015-02-10 FIN-FRM-008R Signing Authority & Research Reports Access Research Funds Page 1 of 2 This form will serve to delegate or remove Signing Authority and/or Research Reports Access for the Project identified

    E-Print Network [OSTI]

    Fletcher, Robin

    Date Revised: 2015-02-10 FIN-FRM-008R Signing Authority & Research Reports Access ­ Research Funds Page 1 of 2 This form will serve to delegate or remove Signing Authority and/or Research Reports Access. There is no limit on the number of individuals to whom Signing Authority and/or Research Reports access may

  16. Electronic security device

    DOE Patents [OSTI]

    Eschbach, Eugene A. (Richland, WA); LeBlanc, Edward J. (Kennewick, WA); Griffin, Jeffrey W. (Kennewick, WA)

    1992-01-01

    The present invention relates to a security device having a control box (12) containing an electronic system (50) and a communications loop (14) over which the system transmits a signal. The device is constructed so that the communications loop can extend from the control box across the boundary of a portal such as a door into a sealed enclosure into which access is restricted whereby the loop must be damaged or moved in order for an entry to be made into the enclosure. The device is adapted for detecting unauthorized entries into such enclosures such as rooms or containers and for recording the time at which such entries occur for later reference. Additionally, the device detects attempts to tamper or interfere with the operation of the device itself and records the time at which such events take place. In the preferred embodiment, the security device includes a microprocessor-based electronic system (50) and a detection module (72) capable of registering changes in the voltage and phase of the signal transmitted over the loop.

  17. Electronic security device

    DOE Patents [OSTI]

    Eschbach, E.A.; LeBlanc, E.J.; Griffin, J.W.

    1992-03-17

    The present invention relates to a security device having a control box containing an electronic system and a communications loop over which the system transmits a signal. The device is constructed so that the communications loop can extend from the control box across the boundary of a portal such as a door into a sealed enclosure into which access is restricted whereby the loop must be damaged or moved in order for an entry to be made into the enclosure. The device is adapted for detecting unauthorized entries into such enclosures such as rooms or containers and for recording the time at which such entries occur for later reference. Additionally, the device detects attempts to tamper or interfere with the operation of the device itself and records the time at which such events take place. In the preferred embodiment, the security device includes a microprocessor-based electronic system and a detection module capable of registering changes in the voltage and phase of the signal transmitted over the loop. 11 figs.

  18. Los Alamos: MST-MTM: EML: Electron Microscopy Laboratory

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

    EDAX Energy-dispersive x-ray spectrometer, with point analysis, line scan, and limited mapping. Imaging with both secondary and backscattered electrons. Digital image acquisition....

  19. Printed electronics and micro-electromechanical systems

    E-Print Network [OSTI]

    Wilhelm, Eric Jamesson, 1977-

    2004-01-01

    Current electronics and micro-electromechanical systems (MEMS) manufacture is optimized for the production of very high-volume parts on a limited range of substrates. These processes are long, consume large amounts of ...

  20. Packaging solution for VLSI electronic photonic chips

    E-Print Network [OSTI]

    Lee, Chieh-feng

    2007-01-01

    As the demand of information capacity grows, the adoption of optical technology will increase. The issue of resistance and capacitance is limiting the electronic transmission bandwidth while fiber optic delivers data at ...

  1. Alexandria Digital Library Project Content Access Characterization

    E-Print Network [OSTI]

    Janée, Greg

    Alexandria Digital Library Project Content Access Characterization in Digital Libraries Greg Janée · James Frew · David Valentine University of California, Santa Barbara #12;Alexandria Digital Library environments e.g., GIS #12;Alexandria Digital Library Project Janée, Frew, Valentine · Content Access

  2. Metropolitan Accessibility and Transportation Sustainability:Sustainability

    E-Print Network [OSTI]

    Papalambros, Panos

    Metropolitan Accessibility and Transportation Sustainability:Sustainability: Comparative Reduce (fulfillment of)Promote Sustainability: Meet needs of (fulfillment of) needs present Institute SMART Sustainable Mobility and Accessibility Research andSMART Sustainable Mobility

  3. Premier Access Insurance Company Certificate of Insurance

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Premier Access Insurance Company Certificate of Insurance Policy/Group Number: 3725 We certify provided by Premier Access Insurance Company for You and Your eligible Dependents. All terms and benefits...................................................... Family Deductible Amount

  4. Solid-state semiconductors are better alternatives to arc-lamps for efficient and uniform illumination in minimal access surgery

    E-Print Network [OSTI]

    Rosso, Lula

    of technical and ergonomic limitations. White light-emitting diodes (LEDs) are energy-efficient solid- state Illumination Á Light-emitting diode Á Minimal access surgery Á Solid-state semiconductor In the 1950s

  5. Identity, Credential, and Access Management (ICAM)

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

    2013-02-19

    To establish requirements and responsibilities for DOE identity, credential, and access management program. Cancels DOE N 206.4.

  6. Characterizing Open Access Publishing at Your Institution 

    E-Print Network [OSTI]

    Hubbard, David E.; Li, Yu

    2014-11-03

    Medical Library, 2008) Open Access (OA) “… digital, online, free of charge, and free of most copyright and licensing restrictions.” (Suber, 2012, p. 4) “Flavors” of Open Access Gold: provide immediate open access, peer reviewed; authors retain copyright... Green: self-archiving; not necessarily peer reviewed Hybrid: some open access Delayed: embargo period Some Questions about OA Publishing? How much OA publishing is there at my institution? In what OA journals are my faculty publishing? In what...

  7. Quantum Limits of Thermometry

    E-Print Network [OSTI]

    Thomas M. Stace

    2010-06-08

    The precision of typical thermometers consisting of $N$ particles is shot noise limited, improving as $\\sim1/\\sqrt{N}$. For high precision thermometry and thermometric standards this presents an important theoretical noise floor. Here it is demonstrated that thermometry may be mapped onto the problem of phase estimation, and using techniques from optimal phase estimation, it follows that the scaling of the precision of a thermometer may in principle be improved to $\\sim1/N$, representing a Heisenberg limit to thermometry.

  8. Accessing Fieldbus Systems via Web Services

    E-Print Network [OSTI]

    Turau, Volker

    Accessing Fieldbus Systems via Web Services Marcus Venzke1 and Stefan Pitzek2 1 Telematics -- This paper discusses accessing fieldbus systems via web services over the Internet or intranets, having validation. It rejects all accesses not conforming to the specification of the web service's interface. 1

  9. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2004 to August 2005 Prepared Appendix C ­ King's University College Accessibility Plan #12;3 The University of Western Ontario's Annual Accessibility Plan September 30, 2004 Introduction In December 2001, Ontario passed the Ontarians

  10. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2005 to August 2006 Prepared ........................................................................................................15 Appendix A ­ Members of WODAC Appendix B ­ The University of Western Ontario Accessibility of Western Ontario's Annual Accessibility Plan September 30, 2005 Introduction In December 2001, Ontario

  11. Building Access Program Facilities Management Bridge Group

    E-Print Network [OSTI]

    Building Access Program Facilities Management Bridge Group January 21, 2014 #12;Campus Safety Initiatives · Lighting and Landscaping · Video Surveillance · Building Access #12;The Challenge · How do we;Components of Building Access · Perimeter automation · Tightening of public hours #12;Perimeter Automation

  12. CHARACTERIZATION OF ELECTRONIC PACKAGING USING MOIR INTERFEROMETRY

    E-Print Network [OSTI]

    Sottos, Nancy R.

    CHARACTERIZATION OF ELECTRONIC PACKAGING USING MOIRÉ INTERFEROMETRY BY EUGENE A. STOUT V B of electronic packaging is limited by the ability of the chip carrier/PWB interconnections to withstand materials of the package as well as mechanically induced flexure. A micromechanical test apparatus

  13. Recent legislative changes affect the way we teach and provide service at Western. The Accessibility for Ontarians with Disabilities Act (AODA) has new requirements that came into effect as of January 1, 2014,

    E-Print Network [OSTI]

    Lennard, William N.

    . Accessible Educational and Training Resources Under the Information and Communication Standard, we are required to provide educational or training resources in an accessible format that takes into account records. Purchase educational materials that include an accessible or conversion-ready electronic format

  14. Video, Audio, and Animation Text Versions for Web Accessibility...

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

    Video, Audio, and Animation Text Versions for Web Accessibility Video, Audio, and Animation Text Versions for Web Accessibility For accessibility, Section 508 requires text...

  15. Unitary limit in crossed Andreev transport

    E-Print Network [OSTI]

    I. A. Sadovskyy; G. B. Lesovik; V. M. Vinokur

    2015-04-10

    Crossed Andreev reflection splitting a Cooper pair into the metal through spatially separated terminals as two spin and energy entangled electrons is one of the most promising approaches to generation of entangled electron pairs. However, while the conventional (local) Andreev reflection occurs with the probability of unity, the probability of crossed Andreev reflection is significantly suppressed. We propose a one-dimensional model capturing main features of the hybrid normal metal-superconductor setups used in experiments, which allows to achieve a unitary limit of crossed Andreev transport, i.e. splitting of Cooper pairs with the 100% efficiency. We calculate and analyze electron-to-hole transmission probability, differential conductance, and cross-correlations of currents passing through different terminals thus putting the ideas of maximum possible outcome on a firm analytical basis.

  16. Laboratory Access | Sample Preparation Laboratories

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate student Subtask22BackgroundLabSanta'sNewNaturalAccess

  17. Optical limiting materials

    DOE Patents [OSTI]

    McBranch, D.W.; Mattes, B.R.; Koskelo, A.C.; Heeger, A.J.; Robinson, J.M.; Smilowitz, L.B.; Klimov, V.I.; Cha, M.; Sariciftci, N.S.; Hummelen, J.C.

    1998-04-21

    Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO{sub 2}) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400--1,100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes. 5 figs.

  18. Consumer Electronics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit the followingConcentrating SolarConstruction Review BasicConsumer-Electronics

  19. Electron Transfer

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansas Nuclear ProfileMultiferroicAward |ElectronFluctuations3 Pierre

  20. Construction progress of the RHIC electron lenses

    SciTech Connect (OSTI)

    Fischer W.; Altinbas, Z.; Anerella, M.; Beebe, E.; et al

    2012-05-20

    In polarized proton operation the RHIC performance is limited by the head-on beam-beam effect. To overcome this limitation two electron lenses are under construction. We give an overview of the construction progress. Guns, collectors and the warm electron beam transport solenoids with their power supplies have been constructed. The superconducting solenoids that guide the electron beam during the interaction with the proton beam are near completion. A test stand has been set up to verify the performance of the gun, collector and some of the instrumentation. The infrastructure is being prepared for installation, and simulations continue to optimize the performance.

  1. Electronic Coupling Dependence of Ultrafast Interfacial Electron...

    Office of Scientific and Technical Information (OSTI)

    Electron Transfer on Nanocrystalline Thin Films and Single Crystal Lian, Tianquan 14 SOLAR ENERGY The long-term goal of the proposed research is to understand electron transfer...

  2. ORIGINAL Open Access Immobilization of anode-attached microbes in a

    E-Print Network [OSTI]

    ORIGINAL Open Access Immobilization of anode-attached microbes in a microbial fuel cell Rachel C isolation of new microbes a challenge. More in vivo like conditions are needed where bacteria can be grown) are based on electron transfer between microbes and an electrode surface. Most investigations

  3. Sealed head access area enclosure

    DOE Patents [OSTI]

    Golden, Martin P. (Trafford, PA); Govi, Aldo R. (Greensburg, PA)

    1978-01-01

    A liquid-metal-cooled fast breeder power reactor is provided with a sealed head access area enclosure disposed above the reactor vessel head consisting of a plurality of prefabricated structural panels including a center panel removably sealed into position with inflatable seals, and outer panels sealed into position with semipermanent sealant joints. The sealant joints are located in the joint between the edge of the panels and the reactor containment structure and include from bottom to top an inverted U-shaped strip, a lower layer of a room temperature vulcanizing material, a separator strip defining a test space therewithin, and an upper layer of a room temperature vulcanizing material. The test space is tapped by a normally plugged passage extending to the top of the enclosure for testing the seal or introducing a buffer gas thereinto.

  4. SLAC All Access: Laser Labs

    ScienceCinema (OSTI)

    Minitti, Mike; Woods Mike

    2014-06-03

    From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

  5. T-606: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data

    Broader source: Energy.gov [DOE]

    Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data.

  6. Tevatron Electron Lenses: Design and Operation

    SciTech Connect (OSTI)

    Shiltsev, Vladimir; Bishofberger, Kip; Kamerdzhiev, Vsevolod; Kozub, Sergei; Kufer, Matthew; Kuznetsov, Gennady; Martinez, Alexander; Olson, Marvin; Pfeffer, Howard; Saewert, Greg; Scarpine, Vic; /Fermilab /SLAC /Fermilab /Serpukhov, IHEP /Novosibirsk, IYF /Serpukhov, IHEP /Fermilab

    2008-08-01

    The beam-beam effects have been the dominating sources of beam loss and lifetime limitations in the Tevatron proton-antiproton collider [1]. Electron lenses were originally proposed for compensation of electromagnetic long-range and head-on beam-beam interactions of proton and antiproton beams [2]. Results of successful employment of two electron lenses built and installed in the Tevatron are reported in [3,4,5]. In this paper we present design features of the Tevatron electron lenses (TELs), discuss the generation of electron beams, describe different modes of operation and outline the technical parameters of various subsystems.

  7. Tuning Reactivity and Electronic Properties through Ligand Reorganization within a Cerium Heterobimetallic Framework

    SciTech Connect (OSTI)

    Robinson, Jerome R.; Gordon, Zachary; Booth, Corwin H.; Carroll, Patrick J.; Walsh, Patrick J.; Schelter, Eric J.

    2014-06-24

    Cerium compounds have played vital roles in organic, inorganic, and materials chemistry due to their reversible redox chemistry between trivalent and tetravalent oxidation states. However, attempts to rationally access molecular cerium complexes in both oxidation states have been frustrated by unpredictable reactivity in cerium(III) oxidation chemistry. Such oxidation reactions are limited by steric saturation at the metal ion, which can result in high energy activation barriers for electron transfer. An alternative approach has been realized using a rare earth/alkali metal/1,1'-BINOLate (REMB) heterobimetallic framework, which uses redox-inactive metals within the secondary coordination sphere to control ligand reorganization. The rational syntheses of functionalized cerium(IV) products and a mechanistic examination of the role of ligand reorganization in cerium(III) oxidation are presented.

  8. Unveiling the Proton Spin Decomposition at a Future Electron-Ion Collider

    E-Print Network [OSTI]

    Aschenauer, Elke C; Stratmann, M

    2015-01-01

    We present a detailed assessment of how well a future Electron-Ion Collider could constrain helicity parton distributions in the nucleon and, therefore, unveil the role of the intrinsic spin of quarks and gluons in the proton's spin budget. Any remaining deficit in this decomposition will provide the best indirect constraint on the contribution due to the total orbital angular momenta of quarks and gluons. Specifically, all our studies are performed in the context of global QCD analyses based on realistic pseudo-data and in the light of the most recent data obtained from polarized proton-proton collisions at BNL-RHIC that have provided evidence for a significant gluon polarization in the accessible, albeit limited range of momentum fractions. We also present projections on what can be achieved on the gluon's helicity distribution by the end of BNL-RHIC operations. All estimates of current and projected uncertainties are performed with the robust Lagrange multiplier technique.

  9. The Access Almanac: Graduated Parking Fines

    E-Print Network [OSTI]

    Shoup, Donald

    2010-01-01

    THE ACCESS ALMANAC Graduated Parking Fines BY DONALD SHOUPC ITIES OFTEN INCREASE THEIR PARKING FINESWHEN overtime parking in a calendar year is $35, the second

  10. International Electricity Trade - Open Access | Department of...

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

    DOE has consistently expressed its policy that international electricity trade should be subject to the same principles of comparable open access and non-discrimination that apply...

  11. UH Parking Access & Mid-Pacific Institute

    E-Print Network [OSTI]

    Pacific Ocean Science & Technology Kuykendall Annex Information Technology Center Krauss Hall Holmes HallStairs Pond UH Parking Access & Mid-Pacific Institute Exit Dole Street Offices Multipurpose

  12. Adjudicative Guidelines for Determining Eligibility for Access...

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

    consultants, contractors, employees of contractors, licensees, certificate holders or grantees and their employees and other individuals who require access to classified...

  13. The Limit of Mental Structures

    E-Print Network [OSTI]

    Mandler, George

    2013-01-01

    of constructing such structures. References A cautionaryTHE LIMIT OF MENTAL STRUCTURES Asch, S. E. , & Ebenholtz, S.100. THE LIMIT OF MENTAL STRUCTURES Halford, G. S. , Cowan,

  14. Fault current limiter

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2013-10-08

    A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.

  15. Limited Electricity Generation Supply and Limited Natural Gas Supply Cases (released in AEO2008)

    Reports and Publications (EIA)

    2008-01-01

    Development of U.S. energy resources and the permitting and construction of large energy facilities have become increasingly difficult over the past 20 years, and they could become even more difficult in the future. Growing public concern about global warming and CO2 emissions also casts doubt on future consumption of fossil fuels -- particularly coal, which releases the largest amount of CO2 per unit of energy produced. Even without regulations to limit greenhouse gas emissions in the United States, the investment community may already be limiting the future use of some energy options. In addition, there is considerable uncertainty about the future availability of, and access to, both domestic and foreign natural gas resources.

  16. Modeling Incoherent Electron Cloud Effects

    SciTech Connect (OSTI)

    Vay, Jean-Luc; Benedetto, E.; Fischer, W.; Franchetti, G.; Ohmi, K.; Schulte, D.; Sonnad, K.; Tomas, R.; Vay, J.-L.; Zimmermann, F.; Rumolo, G.; Pivi, M.; Raubenheimer, T.

    2007-06-18

    Incoherent electron effects could seriously limit the beam lifetime in proton or ion storage rings, such as LHC, SPS, or RHIC, or blow up the vertical emittance of positron beams, e.g., at the B factories or in linear-collider damping rings. Different approaches to modeling these effects each have their own merits and drawbacks. We describe several simulation codes which simplify the descriptions of the beam-electron interaction and of the accelerator structure in various different ways, and present results for a toy model of the SPS. In addition, we present evidence that for positron beams the interplay of incoherent electron-cloud effects and synchrotron radiation can lead to a significant increase in vertical equilibrium emittance. The magnitude of a few incoherent e+e- scattering processes is also estimated. Options for future code development are reviewed.

  17. Optically pulsed electron accelerator

    DOE Patents [OSTI]

    Fraser, J.S.; Sheffield, R.L.

    1985-05-20

    An optically pulsed electron accelerator can be used as an injector for a free electron laser and comprises a pulsed light source, such as a laser, for providing discrete incident light pulses. A photoemissive electron source emits electron bursts having the same duration as the incident light pulses when impinged upon by same. The photoemissive electron source is located on an inside wall of a radiofrequency-powered accelerator cell which accelerates the electron burst emitted by the photoemissive electron source.

  18. Optically pulsed electron accelerator

    DOE Patents [OSTI]

    Fraser, John S. (Los Alamos, NM); Sheffield, Richard L. (Los Alamos, NM)

    1987-01-01

    An optically pulsed electron accelerator can be used as an injector for a free electron laser and comprises a pulsed light source, such as a laser, for providing discrete incident light pulses. A photoemissive electron source emits electron bursts having the same duration as the incident light pulses when impinged upon by same. The photoemissive electron source is located on an inside wall of a radio frequency powered accelerator cell which accelerates the electron burst emitted by the photoemissive electron source.

  19. (Limiting the greenhouse effect)

    SciTech Connect (OSTI)

    Rayner, S.

    1991-01-07

    Traveler attended the Dahlem Research Conference organized by the Freien Universitat, Berlin. The subject of the conference was Limiting the Greenhouse Effect: Options for Controlling Atmospheric CO{sub 2} Accumulation. Like all Dahlem workshops, this was a meeting of scientific experts, although the disciplines represented were broader than usual, ranging across anthropology, economics, international relations, forestry, engineering, and atmospheric chemistry. Participation by scientists from developing countries was limited. The conference was divided into four multidisciplinary working groups. Traveler acted as moderator for Group 3 which examined the question What knowledge is required to tackle the principal social and institutional barriers to reducing CO{sub 2} emissions'' The working rapporteur was Jesse Ausubel of Rockefeller University. Other working groups examined the economic costs, benefits, and technical feasibility of options to reduce emissions per unit of energy service; the options for reducing energy use per unit of GNP; and the significant of linkage between strategies to reduce CO{sub 2} emissions and other goals. Draft reports of the working groups are appended. Overall, the conference identified a number of important research needs in all four areas. It may prove particularly important in bringing the social and institutional research needs relevant to climate change closer to the forefront of the scientific and policy communities than hitherto.

  20. SDO/IRIS Data Access Hands-on Web Access to SDO Data from JSOC

    E-Print Network [OSTI]

    SDO/IRIS Data Access Hands-on Shuo Wang SWRL/NJIT March 2014 #12;Web Access to SDO Data from JSOC 2010) at: http://jsoc.stanford.edu/doc/exports/tour.pdf See my PowerPoint file titled "Web Access

  1. ACCESSIBLE TEXT ENTRY ACCESSIBLE HANDHELD AND DESKTOP TEXT ENTRY FOR PEOPLE WITH

    E-Print Network [OSTI]

    Wobbrock, Jacob O.

    a new text entry method for PDAs and mobile phones called EdgeWrite, which provides physical stabilityACCESSIBLE TEXT ENTRY ACCESSIBLE HANDHELD AND DESKTOP TEXT ENTRY FOR PEOPLE WITH MOTOR IMPAIRMENTS the EdgeWrite design to common input devices for desktop computer access, thus lowering the cost

  2. UCSB Geography Access Authorization Record Fall 2014 Geography Access Control / Identification Application

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    UCSB Geography Access Authorization Record Fall 2014 Geography Access Control / Identification): Geography Use of this card is for University academic purposes only. The issued access/identification card of Geography as soon as possible. I hereby certify that the above information is true and correct, and I

  3. RESEARCH & INNOVATION OFFICE EASY ACCESS IP

    E-Print Network [OSTI]

    University of Technology, Sydney

    RESEARCH & INNOVATION OFFICE EASY ACCESS IP AN INTRODUCTION FOR INDUSTRY PARTNERS FEBRUARY 2014 #12 to provide industry with greater opportunity and incentive to develop products and services that will lead regardless of how successful the end product is You gain easy access to cutting edge science, technology

  4. Access Paths Multi-dimensional Index Structures

    E-Print Network [OSTI]

    Mannheim, Universität

    for result TID-lists) · high cost for intersection if one of the indexes deliverse many results · But') · index.find_key(`ZH1984') · Discussion: · cost equivalent to the cost of a one-dimensional access! KeyAccess Paths Multi-dimensional Index Structures 1Freitag, 4. Juni 2010 #12;September 27, 2007

  5. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2008 to August 2009 Prepared ........................................................................................................15 Appendix A Members of WODAC #12;3 The University of Western Ontario's Annual Accessibility Plan September 30, 2008 Introduction In December 2001, Ontario passed the Ontarians with Disabilities Act, 2001

  6. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2006 to August 2007 Prepared;3 The University of Western Ontario's Annual Accessibility Plan September 30, 2006 Introduction In December 2001, Ontario passed the Ontarians with Disabilities Act, 2001 (the "Act"). The purpose of the Act is to improve

  7. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2011 to August 2012 Prepared .....................................................................................17 #12;3 Introduction In December 2001, Ontario passed the Ontarians with Disabilities Act, 2001 (the Ontario has reported on its compliance with the customer service standard under the Accessibility

  8. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2007 to August 2008 Prepared ........................................................................................................12 Appendix A Members of WODAC #12;3 The University of Western Ontario's Annual Accessibility Plan September 30, 2007 Introduction In December 2001, Ontario passed the Ontarians with Disabilities Act, 2001

  9. Foreign National Access to DOE Cyber Systems

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

    1999-11-01

    DOE N 205.16, dated 9-15-05, extends this Notice until 9-30-06, unless sooner rescinded. To ensure foreign national access to DOE cyber systems continues to advance DOE program objectives while enforcing information access restrictions.

  10. Logic in Access Control (Tutorial Notes)

    E-Print Network [OSTI]

    Ahmed, Amal

    of California, Santa Cruz Abstract. Access control is central to security in computer systems. Over the years to a tutorial given at the 2009 International School on Foundations of Security Analysis and Design. 1 provide a simple, solid, and general foundation for access control, as well as methods for designing

  11. University Library Fact Sheet Sconul Access

    E-Print Network [OSTI]

    Brierley, Andrew

    University Library Fact Sheet Sconul Access Opening Hours Please consult the library website for our current opening hours: http://www.st-andrews.ac.uk/library/ Library Cards To borrow books and access the Library you must bring your card with you to the library on each visit. Please notify

  12. National Radiobiology Archives Distributed Access user's manual

    SciTech Connect (OSTI)

    Watson, C.; Smith, S. (Pacific Northwest Lab., Richland, WA (United States)); Prather, J. (Linfield Coll., McMinnville, OR (United States))

    1991-11-01

    This User's Manual describes installation and use of the National Radiobiology Archives (NRA) Distributed Access package. The package consists of a distributed subset of information representative of the NRA databases and database access software which provide an introduction to the scope and style of the NRA Information Systems.

  13. Web Accessibility Office of Diversity and Inclusion

    E-Print Network [OSTI]

    Jones, Michelle

    Web Accessibility Office of Diversity and Inclusion Applies to: Any website conducting university of the art digital and web based information delivery of information is increasingly central in carrying out constituencies. This policy establishes minimum standards for the accessibility of web based information

  14. Collimation Studies with Hollow Electron Beams

    SciTech Connect (OSTI)

    Stancari, G.; Annala, G.; Johnson, T.R.; Saewert, G.W.; Shiltsev, V.; Still, D.A.; Valishev, A.; /Fermilab

    2011-08-01

    Recent experimental studies at the Fermilab Tevatron collider have shown that magnetically confined hollow electron beams can act as a new kind of collimator for high-intensity beams in storage rings. In a hollow electron beam collimator, electrons enclose the circulating beam. Their electric charge kicks halo particles transversely. If their distribution is axially symmetric, the beam core is unaffected. This device is complementary to conventional two-stage collimation systems: the electron beam can be placed arbitrarily close to the circulating beam; and particle removal is smooth, so that the device is a diffusion enhancer rather than a hard aperture limitation. The concept was tested in the Tevatron collider using a hollow electron gun installed in one of the existing electron lenses. We describe some of the technical aspects of hollow-beam scraping and the results of recent measurements.

  15. Electronic copy available at: http://ssrn.com/abstract=2227002 Inequality and Innovativeness

    E-Print Network [OSTI]

    become restricted ­ inequality of access lowers rates of innovation and the extent of that declineElectronic copy available at: http://ssrn.com/abstract=2227002 Inequality and Innovativeness Scott that analyze the relationship between inequality of access and rates of innovation as well as correlative data

  16. www.nature.com/npjcompumats npj Computational Materials is an online only, fully open access journal

    E-Print Network [OSTI]

    Chen, Long-Qing

    , but are not limited to, the following: · Materials by design: design or discovery of materials (with new chemistry mining · Significantly new or enhanced understanding of a material through theory and computationwww.nature.com/npjcompumats npj Computational Materials is an online only, fully open access

  17. Subscriber access provided by HARVARD UNIV Analytical Chemistry is published by the American Chemical Society. 1155

    E-Print Network [OSTI]

    Subscriber access provided by HARVARD UNIV Analytical Chemistry is published by the American detection limit of 1 µg/cm3 (10 Hz bandwidth) and a dynamic range of 6 decades. Analytes with low UV on the volatility of the analytes and mobile phases.7 The refractive index detector (RID), which is the most widely

  18. Widening Access and Narrowing Focus: Could the Internet Balkanize Science? Marshall Van Alstyne and Erik Brynjolfsson

    E-Print Network [OSTI]

    access to specialized and remote resources can increase scientific productivity but that scientific insularity might also rise (3). Faced with a wealth of resources and limited attention, researchers can use? As quickly as IT collapses barriers based on geography, it forces us to build new ones based on interest

  19. Electron beam generation in Tevatron electron lenses

    SciTech Connect (OSTI)

    Kamerdzhiev, V.; Kuznetsov, G.; Shiltsev, V.; Solyak, N.; Tiunov, M.; /Novosibirsk, IYF

    2006-08-01

    New type of high perveance electron guns with convex cathode has been developed. Three guns described in this article are built to provide transverse electron current density distributions needed for Electron Lenses for beam-beam compensation in the Tevatron collider. The current distribution can be controlled either by the gun geometry or by voltage on a special control electrode located near cathode. We present the designs of the guns and report results of beam measurements on the test bench. Because of their high current density and low transverse temperature of electrons, electron guns of this type can be used in electron cooling and beam-beam compensation devices.

  20. Binge-eating behavior in mice: influences of restriction and palatability in a limited access model 

    E-Print Network [OSTI]

    Davis, Kristina W.

    2009-05-15

    dissatisfaction, guilt/shame about behavior, and/or lack of control over behavior [7, 8]. Binge-type disorders are often associated with high measures of impulsivity [9, 10] and neuroticism [11] and often occur co-morbidly with anxiety disorders lending... of attaining food items, methods of hiding the binge behavior, or purging/exercise). Bingeing shares common features with other types of addiction inasmuch as bingeing is associated with impulsivity, lack of behavioral control, and ritualized behaviors [9...

  1. ENSURING ACCESS TO FEDERALLY CONDUCTED PROGRAMS AND ACTIVITIES BY INDIVIDUALS WITH LIMITED

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And StatisticsProgramof-SA-02: Supplement AnalysisConduct514: Notice4ENERGY POLICY ACTINDIVIDUALS

  2. ENSURING ACCESS TO FEDERALLY CONDUCTED PROGRAMS AND ACTIVITIES BY INDIVIDUALS WITH LIMITED

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n cEnergy (AZ, CA,EnergystudentThis document gives anSTARENMAX Energy

  3. ENSURING ACCESS TO FEDERALLY CONDUCTED PROGRAMS AND ACTIVITIES BY INDIVIDUALS WITH LIMITED

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|DepartmentStatementof EnergyQuality'Lean' System09ENERGYPlants |ENMAX9

  4. Neutral depletion and the helicon density limit

    SciTech Connect (OSTI)

    Magee, R. M.; Galante, M. E.; Carr, J. Jr.; Lusk, G.; McCarren, D. W.; Scime, E. E.

    2013-12-15

    It is straightforward to create fully ionized plasmas with modest rf power in a helicon. It is difficult, however, to create plasmas with density >10{sup 20} m{sup ?3}, because neutral depletion leads to a lack of fuel. In order to address this density limit, we present fast (1 MHz), time-resolved measurements of the neutral density at and downstream from the rf antenna in krypton helicon plasmas. At the start of the discharge, the neutral density underneath the antenna is reduced to 1% of its initial value in 15 ?s. The ionization rate inferred from these data implies that the electron temperature near the antenna is much higher than the electron temperature measured downstream. Neutral density measurements made downstream from the antenna show much slower depletion, requiring 14 ms to decrease by a factor of 1/e. Furthermore, the downstream depletion appears to be due to neutral pumping rather than ionization.

  5. Techniques to Access Databases and Integrate Data for Hydrologic Modeling

    SciTech Connect (OSTI)

    Whelan, Gene; Tenney, Nathan D.; Pelton, Mitchell A.; Coleman, Andre M.; Ward, Duane L.; Droppo, James G.; Meyer, Philip D.; Dorow, Kevin E.; Taira, Randal Y.

    2009-06-17

    This document addresses techniques to access and integrate data for defining site-specific conditions and behaviors associated with ground-water and surface-water radionuclide transport applicable to U.S. Nuclear Regulatory Commission reviews. Environmental models typically require input data from multiple internal and external sources that may include, but are not limited to, stream and rainfall gage data, meteorological data, hydrogeological data, habitat data, and biological data. These data may be retrieved from a variety of organizations (e.g., federal, state, and regional) and source types (e.g., HTTP, FTP, and databases). Available data sources relevant to hydrologic analyses for reactor licensing are identified and reviewed. The data sources described can be useful to define model inputs and parameters, including site features (e.g., watershed boundaries, stream locations, reservoirs, site topography), site properties (e.g., surface conditions, subsurface hydraulic properties, water quality), and site boundary conditions, input forcings, and extreme events (e.g., stream discharge, lake levels, precipitation, recharge, flood and drought characteristics). Available software tools for accessing established databases, retrieving the data, and integrating it with models were identified and reviewed. The emphasis in this review was on existing software products with minimal required modifications to enable their use with the FRAMES modeling framework. The ability of four of these tools to access and retrieve the identified data sources was reviewed. These four software tools were the Hydrologic Data Acquisition and Processing System (HDAPS), Integrated Water Resources Modeling System (IWRMS) External Data Harvester, Data for Environmental Modeling Environmental Data Download Tool (D4EM EDDT), and the FRAMES Internet Database Tools. The IWRMS External Data Harvester and the D4EM EDDT were identified as the most promising tools based on their ability to access and retrieve the required data, and their ability to integrate the data into environmental models using the FRAMES environment.

  6. On the density limit in the helicon plasma sources

    SciTech Connect (OSTI)

    Kotelnikov, Igor A.

    2014-12-15

    Existence of the density limit in the helicon plasma sources is revisited. The low- and high-frequency regimes of a helicon plasma source operation are distinguished. In the low-frequency regime with ?limit is deduced from the Golant-Stix criterion of the accessibility of the lower hybrid resonance. In the high-frequency case, ?>?(?{sub ci}?{sub ce}), an appropriate limit is given by the Shamrai-Taranov criterion. Both these criteria are closely related to the phenomenon of the coalescence of the helicon wave with the Trivelpiece-Gould mode. We draw a conclusion that the derived density limits are not currently achieved in existing devices, perhaps, because of high energy cost of gas ionization.

  7. BUILDING CONNECTION SOUTH BLOCK: ACCESS VIA MAIN ENTRANCE

    E-Print Network [OSTI]

    Shoubridge, Eric

    ENTRANCE ELEVATOR WASHROOMS BUILDING CONNECTION SOUTH BLOCK: ACCESS VIA MAIN ENTRANCE NORTH BLOCK: ACCESS VIA MAIN ENTRANCE WEST BLOCK: ALL LEVELS ARE ACCESSIBLE BY PUBLIC ELEVATOR SOUTH BLOCK MAIN ENTRANCE NORTH BLOCK: ACCESS VIA MAIN ENTRANCE WEST BLOCK: ALL LEVELS ARE ACCESSIBLE BY PUBLIC

  8. Chapter 9: Electronics

    E-Print Network [OSTI]

    Spieler, Helmuth G

    2008-01-01

    R. Armstrong Contents Electronics 9.1 Introduction 9.2measurements 9.11 Digital electronics 9.11.1 Logic elementsProblems page 1 vii Electronics This chapter was contributed

  9. Relativistic Remnants of Non-Relativistic Electrons

    E-Print Network [OSTI]

    Taro Kashiwa; Taisuke Yamaguchi

    2014-10-09

    Electrons obeying the Dirac equation are investigated under the non-relativistic $c \\mapsto \\infty$ limit. General solutions are given by derivatives of the relativistic invariant functions whose forms are different in the time- and the space-like region, yielding the delta function of $(ct)^2 - x^2$. This light-cone singularity does survive to show that the charge and the current density of electrons travel with the speed of light in spite of their massiveness.

  10. Pseudopotential for the electron-electron interaction

    E-Print Network [OSTI]

    Lloyd-Williams, J H; Conduit, G J

    2015-01-01

    We propose a pseudopotential for the electron-electron Coulomb interaction to improve the efficiency of many-body electronic structure calculations. The pseudopotential accurately replicates the scattering properties of the Coulomb interaction, and recovers the analytical solution for two electrons in a parabolic trap. A case study for the homogeneous electron gas using the diffusion Monte Carlo and configuration interaction methods recovers highly accurate values for the ground state energy, and the smoother potential reduces the computational cost by a factor of ~30. Finally, we demonstrate the use of the pseudopotential to study isolated lithium and beryllium atoms.

  11. Controlling Graphene's Electronic Structure

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

    Controlling Graphene's Electronic Structure Print Wednesday, 25 April 2007 00:00 Graphene, because of its unusual electron properties, reduced dimensionality, and scale, has...

  12. COMMENTARY:Limits to adaptation

    SciTech Connect (OSTI)

    Preston, Benjamin L

    2013-01-01

    An actor-centered, risk-based approach to defining limits to social adaptation provides a useful analytic framing for identifying and anticipating these limits and informing debates over society s responses to climate change.

  13. ETSU College of Medicine Onity Door Access Authorization Form

    E-Print Network [OSTI]

    Karsai, Istvan

    ETSU College of Medicine Onity Door Access Authorization Form Please grant access to: 6 access. ____ ALL AREAS (ETSU Service Personnel Only) Medical School Research & Training, VA Bldg. #119-Mail: johnsodl@etsu.edu #12;

  14. Policy 3507 Information Technology Accessibility 1 OLD DOMINION UNIVERSITY

    E-Print Network [OSTI]

    Policy 3507 ­ Information Technology Accessibility 1 OLD DOMINION UNIVERSITY University Policy Policy #3507 INFORMATION TECHNOLOGY ACCESSIBILITY POLICY Responsible Oversight Executive: Vice President, regardless of physical disability, will have the opportunity for appropriate access to information technology

  15. Nemesis: Preventing Authentication & Access Control Vulnerabilities in Web Applications

    E-Print Network [OSTI]

    Sabatini, David M.

    Nemesis: Preventing Authentication & Access Control Vulnerabilities in Web Applications Michael web applications. Authentication attacks occur when a web application authenticates users unsafely, granting access to web clients that lack the ap- propriate credentials. Access control attacks occur when

  16. Random access wireless networks with controlled mobility

    E-Print Network [OSTI]

    Modiano, Eytan H.

    This paper considers wireless networks where messages arriving randomly (in time and space) are collected by a mobile receiver. The messages are transmitted to the mobile receiver according to a random access scheme and ...

  17. The Access Almanac: Solar Parking Requirements

    E-Print Network [OSTI]

    Shoup, Donald

    2012-01-01

    getting solar power from our parking lots. ? A C C E S STHE ACCESS ALMANAC Solar Parking Requirements DONALD SHOUP SC E I N T H E S U N — on parking lots surrounding commercial

  18. The Access Almanac: The Parking of Nations

    E-Print Network [OSTI]

    Shoup, Donald; Stark, Seth

    2000-01-01

    THE ACCESS ALMANAC The Parking of Nations B Y D O N A L D Spaved paradise and put up a parking lot. — Joni Mitchell V E4.4 billion vehicles. Parking would be a global problem. How

  19. Metadata Value Chain for Open Access Journals 

    E-Print Network [OSTI]

    Mercer, Holly; Dyas-Correia, Sharon

    2011-01-01

    In this session, Holly Mercer presented a case for finding global solutions to improve the metadata that is available for journals, particularly small, independent open access journals. She discussed the scholarly communication lifecycle...

  20. CIVIL ENGINEERING LAB ACCESS REQUEST FORM Instructions

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    CIVIL ENGINEERING LAB ACCESS REQUEST FORM Instructions: 1) Fill out request 2) A request may Estimated Key Return Date/When does job terminate? Section C: Approval Signatures (for Civil Engineering use

  1. Fair resource allocation in multiple access channels

    E-Print Network [OSTI]

    ParandehGheibi, Ali

    2008-01-01

    We consider the problem of resource allocation in a multiple access channel. Our objective is to obtain rate and power allocation policies that maximize a general concave utility function of average transmission rates over ...

  2. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2010 to August .....................................................................................15 #12;3 Introduction In December 2001, Ontario of this report, remain in force. As of March 2010, the University of Western Ontario has reported on its

  3. JOBAID-ACCESSING AND MODIFYING TALENT PROFILE

    Broader source: Energy.gov [DOE]

    The purpose of this job aid is to guide users through the step-by-step process of accessing their talent profiles, adding information to their profiles, and editing existing talent profile...

  4. Accessible Programming using Program Synthesis Rishabh Singh

    E-Print Network [OSTI]

    Accessible Programming using Program Synthesis by Rishabh Singh Bachelor of Technology (Honors Singh, MMXIV. All rights reserved. The author hereby grants to MIT permission to reproduce singh Submitted to the Department of Electrical Engineering and Computer Science in partial fulfillment

  5. Decision Analysis of Dynamic Spectrum Access Rules

    SciTech Connect (OSTI)

    Juan D. Deaton; Luiz A. DaSilva; Christian Wernz

    2011-12-01

    A current trend in spectrum regulation is to incorporate spectrum sharing through the design of spectrum access rules that support Dynamic Spectrum Access (DSA). This paper develops a decision-theoretic framework for regulators to assess the impacts of different decision rules on both primary and secondary operators. We analyze access rules based on sensing and exclusion areas, which in practice can be enforced through geolocation databases. Our results show that receiver-only sensing provides insufficient protection for primary and co-existing secondary users and overall low social welfare. On the other hand, using sensing information between the transmitter and receiver of a communication link, provides dramatic increases in system performance. The performance of using these link end points is relatively close to that of using many cooperative sensing nodes associated to the same access point and large link exclusion areas. These results are useful to regulators and network developers in understanding in developing rules for future DSA regulation.

  6. Audio information access from meeting rooms. 

    E-Print Network [OSTI]

    Renals, Steve; Ellis, Dan

    2003-01-01

    We investigate approaches to accessing information from the streams of audio data that result from multi-channel recordings of meetings. The methods investigated use word-level transcriptions, and information derived ...

  7. Conditions for diffusion-limited and reaction-limited recombination in nanostructured solar cells

    SciTech Connect (OSTI)

    Ansari-Rad, Mehdi; Department of Physics, University of Shahrood, Shahrood ; Anta, Juan A.; Arzi, Ezatollah

    2014-04-07

    The performance of Dye-sensitized solar cells (DSC) and related devices made of nanostructured semiconductors relies on a good charge separation, which in turn is achieved by favoring charge transport against recombination. Although both processes occur at very different time scales, hence ensuring good charge separation, in certain cases the kinetics of transport and recombination can be connected, either in a direct or an indirect way. In this work, the connection between electron transport and recombination in nanostructured solar cells is studied both theoretically and by Monte Carlo simulation. Calculations using the Multiple-Trapping model and a realistic trap distribution for nanostructured TiO{sub 2} show that for attempt-to-jump frequencies higher than 10{sup 11}–10{sup 13} Hz, the system adopts a reaction limited (RL) regime, with a lifetime which is effectively independent from the speed of the electrons in the transport level. For frequencies lower than those, and depending on the concentration of recombination centers in the material, the system enters a diffusion-limited regime (DL), where the lifetime increases if the speed of free electrons decreases. In general, the conditions for RL or DL recombination depend critically on the time scale difference between recombination kinetics and free-electron transport. Hence, if the former is too rapid with respect to the latter, the system is in the DL regime and total thermalization of carriers is not possible. In the opposite situation, a RL regime arises. Numerical data available in the literature, and the behavior of the lifetime with respect to (1) density of recombination centers and (2) probability of recombination at a given center, suggest that a typical DSC in operation stays in the RL regime with complete thermalization, although a transition to the DL regime may occur for electrolytes or hole conductors where recombination is especially rapid or where there is a larger dispersion of energies of electron acceptors.

  8. Coping with Growing Collections of Electronic David Hawking

    E-Print Network [OSTI]

    Hawking, David

    information sources, future digital libraries may hold as much text in electronic form as current libraries do in print. Accessing such collections by content rather than by metadata will require search-engine technology to accommodate at least a hundred-fold growth in data size. Recent developments within the ACSys

  9. New ways to access the transverse spin content of the nucleon

    E-Print Network [OSTI]

    M. El Beiyad; B. Pire; L. Szymanowski; S. Wallon

    2010-11-03

    We first describe a new way to access the chiral odd transversity parton distribution in the proton through the photoproduction of lepton pairs. The basic ingredient is the interference of the usual Bethe-Heitler or Drell-Yan amplitudes with the amplitude of a process, where the photon couples to quarks through its chiral-odd distribution amplitude, which is normalized to the magnetic susceptibility of the QCD vacuum. We also show how the chiral-odd transversity generalized parton distributions (GPDs) of the nucleon can be accessed experimentally through the exclusive electro - or photoproduction process of a meson pair with a large invariant mass and when the final nucleon has a small transverse momentum. We calculate perturbatively the scattering amplitude at leading order, both in the high energy domain which may be accessed in electron-ion colliders and in the medium energy range. Estimated rates are encouraging.

  10. SIMULATIONS OF ELECTRON CLOUD BUILD-UP AND SATURATION IN THE APS*

    E-Print Network [OSTI]

    Furman, Miguel

    limits on the critical input parameters. Dedicated electron diagnostics known as retarding designed to study electron cloud effects induced by both positron and electron beams. As previously by an anomalous vacuum pressure rise. A more modest amplification was observed for electron beams. In addition

  11. Application for Permit to Construct Access Driveway Facilities...

    Open Energy Info (EERE)

    relocate an access connection to state ROWs. Published NA Year Signed or Took Effect 2000 Legal Citation Application for Permit to Construct Access Driveway Facilities on...

  12. Green Button: Providing Consumers with Access to Their Energy...

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

    customers in California now have access to their electricity usage data through the Green Button program, and millions more will get access as the program expands. This...

  13. Thanks to Energy Department Funding, Safer Access to Offshore...

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

    Thanks to Energy Department Funding, Safer Access to Offshore Wind Turbine Platforms is Demonstrated Thanks to Energy Department Funding, Safer Access to Offshore Wind Turbine...

  14. Acronyms A AAAP Accelerated Access Authorization Program ACREM...

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

    12 I IAA Interim Access Authorization ICAM Identity, Credential, and Access Management IEA Office of Independent Enterprise Assessments IG Inspector General IN Office of...

  15. Instructions for using HSPD-12 Authenticated Outlook Web Access...

    Energy Savers [EERE]

    Instructions for using HSPD-12 Authenticated Outlook Web Access (OWA) Instructions for using HSPD-12 Authenticated Outlook Web Access (OWA) Provides instructions for remote Outlook...

  16. Energy Department Announces Funding to Access Higher Quality...

    Office of Environmental Management (EM)

    Energy Department Announces Funding to Access Higher Quality Wind Resources and Lower Costs Energy Department Announces Funding to Access Higher Quality Wind Resources and Lower...

  17. KuppingerCole Leadership Compass Cloud User and Access Management

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    and Access Management Leaders in innovation, product features, and market reach for Cloud User and Access .............................................................................................................................................9 3. Product Rating........................................................................................................................................17 9. Product Leaders

  18. Department of Energy Data Access and Privacy Issues Related To...

    Energy Savers [EERE]

    Department of Energy Data Access and Privacy Issues Related To Smart Grid Technologies Department of Energy Data Access and Privacy Issues Related To Smart Grid Technologies This...

  19. NBP RFI: Data Access, Third Party Use, and Privacy- Comments...

    Energy Savers [EERE]

    & Publications Comments of Oncor Electric Delivery Company LLC Department of Energy Data Access and Privacy Issues Related To Smart Grid Technologies NBP RFI: Data Access,...

  20. Public Roundtable- Data Access and Privacy Issues Related to...

    Energy Savers [EERE]

    Public Roundtable- Data Access and Privacy Issues Related to Smart Grid Technologies Public Roundtable- Data Access and Privacy Issues Related to Smart Grid Technologies Transcript...

  1. Request Access to the PARSIIe Project Management Lessons Learned...

    Energy Savers [EERE]

    Request Access to the PARSIIe Project Management Lessons Learned (PMLL) Repository Request Access to the PARSIIe Project Management Lessons Learned (PMLL) Repository PURPOSE...

  2. Increasing Community Access to Solar: Designing and Developing...

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

    Increasing Community Access to Solar: Designing and Developing a Shared Solar Photovoltaic System (Fact Sheet), U.S. Department of Energy (DOE) Increasing Community Access to...

  3. Green Button Energy Data Access Expanding Across America | Department...

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

    Green Button Energy Data Access Expanding Across America Green Button Energy Data Access Expanding Across America October 17, 2012 - 6:01pm Addthis Utilities demonstrating the...

  4. Implications of access hole size on tank waste retrieval system design and cost

    SciTech Connect (OSTI)

    Babcock, S.M.; Kwon, D.S.; Burks, B.L.; Stoughton, R.S.; Evans, M.S.

    1994-05-01

    The DOE Environmental Restoration and Waste Management Robotics Technology Development Program has been investigating the application of robotics technology to the retrieval of waste from single-shell storage tanks for several years. The use of a large, ``long-reach`` manipulator to position and orient a variety of tools and other equipment has been recommended. The objective of this study is to determine the appropriate access hole size for the tank waste retrieval system installation. Previous reports on the impact of access hole size on manipulator performance are summarized. In addition, the practical limitation for access hole size based on structural limitations of the waste storage tanks, the state-of-the-art size limitations for the installation of new risers, the radiation safety implications of various access hole sizes, and overall system cost implications are considered. Basic conclusions include: (1) overall cost of remediation will; be dominated by the costs of the balance of plant and time required to perform the task rather than the cost of manipulator hardware or the cost of installing a riser, (2) the most desirable solution from a manipulator controls point of view is to make the manipulator as stiff as possible and have as high as possible a natural frequency, which implies a large access hole diameter, (3) beyond some diameter; simple, uniform cross-section elements become less advantageous from a weight standpoint and alternative structures should be considered, and (4) additional shielding and contamination control measures would be required for larger holes. Parametric studies summarized in this report considered 3,790,000 1 (1,000,000 gal) tanks, while initial applications are likely to be for 2,840,000 1 (750,000 gal) tanks. Therefore, the calculations should be somewhat conservative, recognizing the limitations of the specific conditions considered.

  5. ELECTRONIC CHARTS INTRODUCTION

    E-Print Network [OSTI]

    New Hampshire, University of

    199 CHAPTER 14 ELECTRONIC CHARTS INTRODUCTION 1400. The Importance of Electronic Charts Since. Electronic charts automate the process of integrating real-time positions with the chart display and allow is expected to take and plot a fix every three minutes. An electronic chart system can do it once per second

  6. Two-color-laser-driven direct electron acceleration in infinite vacuum

    E-Print Network [OSTI]

    Wong, Liang Jie

    We propose a direct electron acceleration scheme that uses a two-color pulsed radially polarized laser beam. The two-color scheme achieves electron acceleration exceeding 90% of the theoretical energy gain limit, over twice ...

  7. Enabling Remedyforce Accessibility v1.0 Page 1 Enabling Remedyforce Accessibility

    E-Print Network [OSTI]

    Guillas, Serge

    SERVICES DIVISION #12;Enabling Remedyforce Accessibility v1.0 Page 2 DOCUMENT HISTORY Version Amendments...................................................................................................................................11 Internet Explorer...............................................................................................................................11 Internet Explorer

  8. Spontaneous hot-electron light emission from electron-fed optical antennas

    E-Print Network [OSTI]

    Buret, Mickael; Dellinger, Jean; Cazier, Nicolas; Mennemanteuil, Marie-Maxime; Berthelot, Johann; Smetanin, Igor V; Protsenko, Igor E; Colas-des-Francs, Gérard; Bouhelier, Alexandre

    2015-01-01

    Nanoscale electronics and photonics are among the most promising research areas providing functional nano-components for data transfer and signal processing. By adopting metal-based optical antennas as a disruptive technological vehicle, we demonstrate that these two device-generating technologies can be interfaced to create an electronically-driven self-emitting unit. This nanoscale plasmonic transmitter operates by injecting electrons in a contacted tunneling antenna feedgap. Under certain operating conditions, we show that the antenna enters a highly nonlinear regime in which the energy of the emitted photons exceeds the quantum limit imposed by the applied bias. We propose a model based upon the spontaneous emission of hot electrons that correctly reproduces the experimental findings. The electron-fed optical antennas described here are critical devices for interfacing electrons and photons, enabling thus the development of optical transceivers for on-chip wireless broadcasting of information at the nanos...

  9. Electron uptake by iron-oxidizing phototrophic bacteria

    SciTech Connect (OSTI)

    Bose, A; Gardel, EJ; Vidoudez, C; Parra, EA; Girguis, PR

    2014-02-26

    Oxidation-reduction reactions underlie energy generation in nearly all life forms. Although most organisms use soluble oxidants and reductants, some microbes can access solid-phase materials as electron-acceptors or -donors via extracellular electron transfer. Many studies have focused on the reduction of solid-phase oxidants. Far less is known about electron uptake via microbial extracellular electron transfer, and almost nothing is known about the associated mechanisms. Here we show that the iron-oxidizing photoautotroph Rhodopseudomonas palustris TIE-1 accepts electrons from a poised electrode, with carbon dioxide as the sole carbon source/electron acceptor. Both electron uptake and ruBisCo form I expression are stimulated by light. Electron uptake also occurs in the dark, uncoupled from photosynthesis. Notably, the pioABC operon, which encodes a protein system essential for photoautotrophic growth by ferrous iron oxidation, influences electron uptake. These data reveal a previously unknown metabolic versatility of photoferrotrophs to use extracellular electron transfer for electron uptake.

  10. Subscriber access provided by RICE UNIV Journal of the American Chemical Society is published by the American Chemical

    E-Print Network [OSTI]

    Brooks, Philip R.

    Subscriber access provided by RICE UNIV Journal of the American Chemical Society is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Threshold Effects in Electron` Rice Quantum Institute, Rice University, Houston, Texas 77251 Received September 30, 1994@ Abstract

  11. International Journal of Mechanical Engineering Education 36/2 Remote-access real-time laboratory: process

    E-Print Network [OSTI]

    Khandekar, Sameer

    , Kanpur (UP) 208016, India E-mail: samkhan@iitk.ac.in Abstract The development of a remote-access real study of such flows is vital for many applications, ranging from electronics thermal management to fuel also been incorporated to add vibrancy to inter-user communication. In addition, three

  12. Transferred metal electrode films for large-area electronic devices...

    Office of Scientific and Technical Information (OSTI)

    metal electrode films for large-area electronic devices The evaporation of metal-film gate electrodes for top-gate organic field-effect transistors (OFETs) limits the...

  13. Effect of Secondary Electron Emission on Electron Cross-Field Current in E×B Discharges

    SciTech Connect (OSTI)

    Yevgeny Raitses, Igor D. Kaganovich, Alexander Khrabrov, Dmytro Sydorenko, Nathaniel J. Fisch and Andrei Smolyakov

    2011-02-10

    This paper reviews and discusses recent experimental, theoretical, and numerical studies of plasma-wall interaction in a weakly collisional magnetized plasma bounded with channel walls made from different materials. A lowpressure ExB plasma discharge of the Hall thruster was used to characterize the electron current across the magnetic field and its dependence on the applied voltage and electron-induced secondary electron emission (SEE) from the channel wall. The presence of a depleted, anisotropic electron energy distribution function with beams of secondary electrons was predicted to explain the enhancement of the electron cross-field current observed in experiments. Without the SEE, the electron crossfield transport can be reduced from anomalously high to nearly classical collisional level. The suppression of SEE was achieved using an engineered carbon velvet material for the channel walls. Both theoretically and experimentally, it is shown that the electron emission from the walls can limit the maximum achievable electric field in the magnetized plasma. With nonemitting walls, the maximum electric field in the thruster can approach a fundamental limit for a quasineutral plasma.

  14. Present State of Electron Backscatter Diffraction and Prospective Developments

    SciTech Connect (OSTI)

    Schwarzer, R A; Field, D P; Adams, B L; Kumar, M; Schwartz, A J

    2008-10-24

    Electron backscatter diffraction (EBSD), when employed as an additional characterization technique to a scanning electron microscope (SEM), enables individual grain orientations, local texture, point-to-point orientation correlations, and phase identification and distributions to be determined routinely on the surfaces of bulk polycrystals. The application has experienced rapid acceptance in metallurgical, materials, and geophysical laboratories within the past decade (Schwartz et al. 2000) due to the wide availability of SEMs, the ease of sample preparation from the bulk, the high speed of data acquisition, and the access to complementary information about the microstructure on a submicron scale. From the same specimen area, surface structure and morphology of the microstructure are characterized in great detail by the relief and orientation contrast in secondary and backscatter electron images, element distributions are accessed by energy dispersive spectroscopy (EDS), wavelength dispersive spectroscopy (WDS), or cathodoluminescence analysis, and the orientations of single grains and phases can now be determined, as a complement, by EBSD.

  15. On the Feasibility of Low-Power Secondary Access to 960-1215 MHz Aeronautical Spectrum

    E-Print Network [OSTI]

    Obregon, Evanny; Zander, Jens

    2012-01-01

    In this paper, we analyze the feasibility of short range indoor communication using secondary spectrum access to the 960-1215 MHz band, primarily allocated to the distance measuring equipment (DME) system for aeronautical navigation. We propose a practical secondary sharing scheme based on a combination of geo-location databases and spectrum sensing. Since the DME system performs a safety-of-life function, protection from harmful interference becomes extremely critical. Secondary users estimate the propagation loss and employ an individual interference threshold to control the aggregate interference. We examine the feasibility of large scale secondary access in terms of the transmission probability (of the secondary users) that keeps the probability of harmful interference below a given limit. Delays in the database update and uncertainties in the estimated propagation losses due to fading affect the feasibility of the secondary access. We propose a cumulant-based approximation of the probability distribution...

  16. Short wavelength limits of current shot noise suppression

    SciTech Connect (OSTI)

    Nause, Ariel; Dyunin, Egor; Gover, Avraham

    2014-08-15

    Shot noise in electron beam was assumed to be one of the features beyond control of accelerator physics. Current results attained in experiments at Accelerator Test Facility in Brookhaven and Linac Coherent Light Source in Stanford suggest that the control of the shot noise in electron beam (and therefore of spontaneous radiation and Self Amplified Spontaneous Emission of Free Electron Lasers) is feasible at least in the visible range of the spectrum. Here, we present a general linear formulation for collective micro-dynamics of e-beam noise and its control. Specifically, we compare two schemes for current noise suppression: a quarter plasma wavelength drift section and a combined drift/dispersive (transverse magnetic field) section. We examine and compare their limits of applicability at short wavelengths via considerations of electron phase-spread and the related Landau damping effect.

  17. Image formation modeling in cryo-electron microscopy Milos Vulovic a,b

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    of structural de- tail that can be obtained by cryo-EM is largely limited by specimen heterogeneity dam- age which limits the integrated electron flux that can be used, resulting in a poor signal

  18. ETSU College of Medicine CBORD Door Access Authorization Form

    E-Print Network [OSTI]

    Karsai, Istvan

    ETSU College of Medicine CBORD Door Access Authorization Form 6/13/2011 Please grant access to: This access will remain in effect until the individual is no longer an active ETSU faculty list areas this individual will need access to: ____ ALL AREAS - ETSU Service Personnel Only ­ (i

  19. Cooperative Cache-Based Data Access in Ad Hoc Networks

    E-Print Network [OSTI]

    Yener, Aylin

    1 Cooperative Cache-Based Data Access in Ad Hoc Networks Guohong Cao, Liangzhong Yin and Chita R: Cooperative cache-based data access framework #12;6 Data Access Framework The cooperative cache-based data data authentication based on sensitivity. #12;16 Conclusion A cooperative cache-based data access

  20. Ultra-bright pulsed electron beam with low longitudinal emittance

    DOE Patents [OSTI]

    Zolotorev, Max (Oakland, CA)

    2010-07-13

    A high-brightness pulsed electron source, which has the potential for many useful applications in electron microscopy, inverse photo-emission, low energy electron scattering experiments, and electron holography has been described. The source makes use of Cs atoms in an atomic beam. The source is cycled beginning with a laser pulse that excites a single Cs atom on average to a band of high-lying Rydberg nP states. The resulting valence electron Rydberg wave packet evolves in a nearly classical Kepler orbit. When the electron reaches apogee, an electric field pulse is applied that ionizes the atom and accelerates the electron away from its parent ion. The collection of electron wave packets thus generated in a series of cycles can occupy a phase volume near the quantum limit and it can possess very high brightness. Each wave packet can exhibit a considerable degree of coherence.

  1. RHIC electron lenses upgrades

    SciTech Connect (OSTI)

    Gu, X.; Altinbas, Z.; Bruno, D.; Binello, S.; Costanzo, M.; Drees, A.; Fischer, W.; Gassner, D. M.; Hock, J.; Hock, K.; Harvey, M.; Luo, Y.; Marusic, A.; Mi, C.; Mernick, K.; Minty, M.; Michnoff, R.; Miller, T. A.; Pikin, A. I.; Robert-Demolaize, G.; Samms, T.; Shrey, T. C.; Schoefer, V.; Tan, Y.; Than, R.; Thieberger, P.; White, S. M.

    2015-05-03

    In the Relativistic Heavy Ion Collider (RHIC) 100 GeV polarized proton run in 2015, two electron lenses were used to partially compensate for the head-on beam-beam effect for the first time. Here, we describe the design of the current electron lens, detailing the hardware modifications made after the 2014 commissioning run with heavy ions. A new electron gun with 15-mm diameter cathode is characterized. The electron beam transverse profile was measured using a YAG screen and fitted with a Gaussian distribution. During operation, the overlap of the electron and proton beams was achieved using the electron backscattering detector in conjunction with an automated orbit control program.

  2. Quantum internet using code division multiple access

    E-Print Network [OSTI]

    Jing Zhang; Yu-xi Liu; Sahin Kaya Ozdemir; Re-Bing Wu; Feifei Gao; Xiang-Bin Wang; Lan Yang; Franco Nori

    2013-09-12

    A crucial open problem in large-scale quantum networks is how to efficiently transmit quantum data among many pairs of users via a common data-transmission medium. We propose a solution by developing a quantum code division multiple access (q-CDMA) approach in which quantum information is chaotically encoded to spread its spectral content, and then decoded via chaos synchronization to separate different sender-receiver pairs. In comparison to other existing approaches, such as frequency division multiple access (FDMA), the proposed q-CDMA can greatly increase the information rates per channel used, especially for very noisy quantum channels.

  3. Imaging Electrons in Few-Electron Quantum Dots

    E-Print Network [OSTI]

    Imaging Electrons in Few-Electron Quantum Dots A thesis presented by Parisa Fallahi to The Division Electrons in Few-Electron Quantum Dots Abstract Electrons in a one-electron quantum dot were imaged the tip-induced shift of the electron energy state in the dot. A technique for extracting the amplitude

  4. FUEL CASK IMPACT LIMITER VULNERABILITIES

    SciTech Connect (OSTI)

    Leduc, D; Jeffery England, J; Roy Rothermel, R

    2009-02-09

    Cylindrical fuel casks often have impact limiters surrounding just the ends of the cask shaft in a typical 'dumbbell' arrangement. The primary purpose of these impact limiters is to absorb energy to reduce loads on the cask structure during impacts associated with a severe accident. Impact limiters are also credited in many packages with protecting closure seals and maintaining lower peak temperatures during fire events. For this credit to be taken in safety analyses, the impact limiter attachment system must be shown to retain the impact limiter following Normal Conditions of Transport (NCT) and Hypothetical Accident Conditions (HAC) impacts. Large casks are often certified by analysis only because of the costs associated with testing. Therefore, some cask impact limiter attachment systems have not been tested in real impacts. A recent structural analysis of the T-3 Spent Fuel Containment Cask found problems with the design of the impact limiter attachment system. Assumptions in the original Safety Analysis for Packaging (SARP) concerning the loading in the attachment bolts were found to be inaccurate in certain drop orientations. This paper documents the lessons learned and their applicability to impact limiter attachment system designs.

  5. CLNS 03/1827 VERY HIGH VOLTAGE PHOTOEMISSION ELECTRON GUNS*

    E-Print Network [OSTI]

    CLNS 03/1827 VERY HIGH VOLTAGE PHOTOEMISSION ELECTRON GUNS* Charles K. Sinclair # , Cornell voltage DC electron guns with photoemission cathodes are a natural choice for generating the beams gradient in these guns. The photocathode operational lifetime is limited by the gun vacuum and by ion back

  6. DATA ACCESS POLICY As NJIT has moved to a distributed data access environment, policy has been established

    E-Print Network [OSTI]

    DATA ACCESS POLICY As NJIT has moved to a distributed data access environment, policy has been established to protect the computer-based institutional data from unauthorized (c.q. other improprietary) access and us. Attached is a policy statement regarding data access at the New Jersey Institute

  7. AIM Access Request Access to confidential student information is protected under the Family Educational Rights and Privacy Act (FERPA), and

    E-Print Network [OSTI]

    Hart, Gus

    of the options below and provide the required information to the right. Replace an existing employee who hasAIM Access Request Access to confidential student information is protected under the Family Educational Rights and Privacy Act (FERPA), and access should only be requested when there is a need to access

  8. Catalac free electron laser

    DOE Patents [OSTI]

    Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

    1982-01-01

    A catalac free electron laser using a rf linac (catalac) which acts as a catalyst to accelerate an electron beam in an initial pass through the catalac and decelerate the electron beam during a second pass through the catalac. During the second pass through the catalac, energy is extracted from the electron beam and transformed to energy of the accelerating fields of the catalac to increase efficiency of the device. Various embodiments disclose the use of post linacs to add electron beam energy extracted by the wiggler and the use of supplementary catalacs to extract energy at various energy peaks produced by the free electron laser wiggler to further enhance efficiency of the catalac free electron laser. The catalac free electron laser can be used in conjunction with a simple resonator, a ring resonator or as an amplifier in conjunction with a master oscillator laser.

  9. Neutrinos in the Electron

    E-Print Network [OSTI]

    E. L. Koschmieder

    2006-09-26

    We will show that one half of the rest mass of the electron is equal to the sum of the rest masses of electron neutrinos and that the other half of the rest mass of the electron is given by the energy in the sum of electric oscillations. With this composition we can explain the rest mass, the electric charge, the spin and the magnetic moment of the electron.

  10. Electron Beam Lithography

    E-Print Network [OSTI]

    Sandini, Giulio

    Electron Beam Lithography Marco Salerno #12;Outline · general lithographic concepts · EBL www.cnf.cornell.edu/SPIEBook/SPIE1.HTM #12;Typical Electron Beam Column Zeiss GeminiTM column Types of Electron Beam Columns · no e- cross over no Boersch-effect (additional energy spread) · beam booster

  11. Dark Energy and Electrons

    E-Print Network [OSTI]

    Burra G. Sidharth

    2008-08-05

    In the light of recent developments in Dark Energy, we consider the electron in a such a background field and show that at the Compton wavelength the electron is stable, in that the Cassini inward pressure exactly counterbalances the outward Coulomb repulsive pressure thus answering a problem of the earlier electron theory.

  12. Electronic Monitoring White Papers

    E-Print Network [OSTI]

    Electronic Monitoring White Papers February 15, 2013 Source: NOAA Fisheries Office of Policy & Electronic Monitoring Working Group U.S. Department of Commerce National Oceanic & Atmospheric Administration.holliday@noaa.gov #12;B-1 Appendix B - Electronic Monitoring White Paper Existing Technologies National Oceanic

  13. Electronics, Electrical Engineering

    E-Print Network [OSTI]

    SCHOOL OF Electronics, Electrical Engineering and Computer Science IS IN YOUR HANDS THE FUTURE #12;SCHOOL OF Electronics, Electrical Engineering and Computer Science2 CAREERS IN ELECTRONICS, ELECTRICAL ENGINEERING AND COMPUTER SCIENCE This is an exciting time to join the School of EEECS at Queen's University

  14. ASYMMETRIC ELECTRON DISTRIBUTIONS IN THE SOLAR WIND

    SciTech Connect (OSTI)

    Rha, Kicheol; Ryu, Chang-Mo [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)] [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Yoon, Peter H. [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (United States)] [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (United States)

    2013-09-20

    A plausible mechanism responsible for producing asymmetric electron velocity distribution functions in the solar wind is investigated by means of one-dimensional electrostatic particle-in-cell (PIC) simulation. A recent paper suggests that the variation in the ion-to-electron temperature ratio influences the nonlinear wave-particle dynamics such that it results in the formation of asymmetric distributions. The present PIC code simulation largely confirms this finding, but quantitative differences between the weak turbulence formalism and the present PIC simulation are also found, suggesting the limitation of the analytical method. The inter-relationship between the asymmetric electron distribution and the ion-to-electron temperature ratio may be a new useful concept for the observation.

  15. Lesson 8 Infinite Limits and One-sided Limits

    E-Print Network [OSTI]

    2013-09-06

    Sep 6, 2013 ... long-term behavior. A common model for the population of a species in an area is the logistic model: Lesson 8 Infinite Limits and One-sided ...

  16. Cambridge Journals Online Cambridge Journals Online is a multi-disciplinary e-journal collection that provides full-text access to over

    E-Print Network [OSTI]

    Po, Lai-Man

    the Citation Search tab to go to the Advanced Search mode: 1. Enter search term(s) in the box(es) and select appropriate connector(s) Run Run Shaw Library City University of Hong Kong Access Search Enter search terms appropriate field(s). 3. Optional. Select to limit search terms to an exact phrase. 4. Optional. Limit

  17. Supplemental Note 1. Access to datasets.................................................................pg. 5 Table S1: Accession IDs and internet URLs for access to datasets

    E-Print Network [OSTI]

    Lonardi, Stefano

    SI Guide Supplemental Note 1. Access to datasets.................................................................pg. 5 Table S1: Accession IDs and internet URLs for access to datasets Supplemental Note 2. Physical map statistics of barley HICF map S2.2 Selection of "gene-bearing" BAC clones Supplemental Note 3. Genomic

  18. Special Library Access Enrollment Form INSTRUCTIONS

    E-Print Network [OSTI]

    California at Berkeley, University of

    by the borrowing library. (National ILL code, 1980, IV.I) I accept full responsibility for compliance with USpecial Library Access Enrollment Form INSTRUCTIONS: Complete form, enclose payment, and send to: SLA Service, 133 Doe Library, University of California, Berkeley, CA 94720-6000 Minimum deposit

  19. INTERNET AND FREE ACCESS TO SCHOLARLY PUBLICATIONS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 INTERNET AND FREE ACCESS TO SCHOLARLY PUBLICATIONS Jean-Philippe Rennard Grenoble Graduate School of this evolution and presents the path toward a new economic model of scholarly publications. "If I have seen., Encyclopaedia of E-Commerce, E-Government and Mobile Commerce, IGR, 2006. Abstract: The mean price of scholarly

  20. OUTLOOK -MOBILE DEVICE ACCESS QUICK REFERENCE GUIDE

    E-Print Network [OSTI]

    Liley, David

    th OUTLOOK - MOBILE DEVICE ACCESS QUICK REFERENCE GUIDE Quick Reference Guide is designed to step you through the initial set up of your Outlook email account on your Mac. Note: If you're opening Microsoft Outlook 2011 for the first time, you will see the Welcome to Microsoft Outlook for Mac window

  1. OUTLOOK -MOBILE DEVICE ACCESS QUICK REFERENCE GUIDE

    E-Print Network [OSTI]

    Liley, David

    th OUTLOOK - MOBILE DEVICE ACCESS QUICK REFERENCE GUIDE This Quick Reference Guide is designed to step you through the setup of your Outlook email account on your mobile device. When to use this Guide is Outlook. NOTE: After you have set up your account you must remove your old GWSync account ITS

  2. Improving School Governance | 3 Open access publishing

    E-Print Network [OSTI]

    Rambaut, Andrew

    proposed. We would especially like to thank David Carr and Robert Kiley for their attention and support Access Article Processing Charges Bo-Christer Björk and David Solomon March 2014 #12;1 Developing of the Steering Group for their thoughtful feedback throughout the project. Funding group representatives: David

  3. TRANSMISSION OPEN ACCESS IN CHILE Hugh Rudnick

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    considered or are considering deregulating their electric power sectors to allow for competition among implemented in Chilean electric power systems, the incorporation of an open access scheme, the application conditions in interconnected power systems. One line of thinking has viewed the third party use

  4. Special Access Program Policies, Responsibilities, and Procedure

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

    2007-10-29

    This Manual is for OFFICIAL USE ONLY and will not be distributed on the Directives Portal. For distribution, please contact the Executive Secretary of the Special Access Program Oversight Committee at 202-586-6775. Cancels DOE M 471.2-3A. Canceled by DOE O 471.5.

  5. Special Access Program Policies, Responsibilities, and Procedures

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

    2002-07-11

    Special Access Program Policies, Responsibilities, and Procedures This Manual is for OFFICIAL USE ONLY and will not be distributed on the Directives Portal. For distribution, please contact the Director, Office of Security, at 202-586-6775. Cancels: DOE M 471.2-3

  6. fort jackson UNIVERSITY OF SOUTH CAROLINA accessible

    E-Print Network [OSTI]

    Almor, Amit

    fort jackson UNIVERSITY OF SOUTH CAROLINA accessible dream choose convenient think form your own at the University of South Carolina Fort Jackson. Our program offers immediate benefits--convenience, flexibility can be applied to a four-year program at South Carolina and are transferable to most other colleges

  7. Information Access and Privacy Protection Office

    E-Print Network [OSTI]

    deYoung, Brad

    Information Access and Privacy Protection Office I A P P Guidelines for Using Personal Information in Email and Faxes Memorial University employees are required to protect personal information (defined personal information ­ your own or someone else's. Email and faxes, in particular, pose challenges

  8. Open Access and the Chemical Semantic Web

    E-Print Network [OSTI]

    Murray-Rust, Peter; Rzepa, Henry S

    2004-11-21

    stream_source_info mini-abstract.html.txt stream_content_type text/plain stream_size 1868 Content-Encoding ISO-8859-1 stream_name mini-abstract.html.txt Content-Type text/plain; charset=ISO-8859-1 Open Access and the Chemical...

  9. The University of Western Ontario's Accessibility Plan

    E-Print Network [OSTI]

    Lennard, William N.

    The University of Western Ontario's Accessibility Plan September 2009 to August 2010 Prepared;3 Introduction In December 2001, Ontario passed the Ontarians with Disabilities Act, 2001 (the "Act Ontario will report on customer service standard pursuant to Ontario regulations 429/07 and 430/07 which

  10. Raphael Rom Moshe Sidi Multiple Access Protocols

    E-Print Network [OSTI]

    of networks by those who are responsible for their operation as well as by those whose task it is to design. This book concentrates on mechanisms for link access in multiaccess communication systems including local, some knowl- edge in stochastic processes and just a bit of elementary queueing systems

  11. The Pulse Protocol: Energy Efficient Infrastructure Access

    E-Print Network [OSTI]

    Awerbuch, Baruch

    The Pulse Protocol: Energy Efficient Infrastructure Access Baruch Awerbuch, David Holmer, herb}@cs.jhu.edu Abstract-- We present the Pulse protocol which is designed for multi-hop wireless. The Pulse protocol utilizes a periodic flood initiated at the network gateways which provides both routing

  12. RESEARCH Open Access Reconciling taxonomy and phylogenetic

    E-Print Network [OSTI]

    Matsen, Frederick A. "Erick"

    RESEARCH Open Access Reconciling taxonomy and phylogenetic inference: formalism and algorithms: Although taxonomy is often used informally to evaluate the results of phylogenetic inference and the root that solves a "subcoloring" problem to express the difference between a taxonomy and a phylogeny at a given

  13. Ranking websites through prioritized web accessibility barriers

    E-Print Network [OSTI]

    Brajnik, Giorgio

    of these comments apply as well to the current WCAG 2.0 draft, to Section 508 and to the Italian official technical criteria in WCAG 2.0), or when they do it (like priority levels in WCAG 1.0) they do not depend on specificRanking websites through prioritized web accessibility barriers Giorgio Brajnik Dip. di Matematica

  14. University of Bristol -Access Agreement 1. Background

    E-Print Network [OSTI]

    Wiesner, Karoline

    1 University of Bristol - Access Agreement 2013 Entry 1. Background The University developed its to the government grant package. The move to a new financial environment in 2012/13 necessitated a more fundamental degree will have to pay the full cost fees (£18,450 a year in 2012/13). #12;2 · Students who are entitled

  15. UH Parking Access & Mid-Pacific Institute

    E-Print Network [OSTI]

    Hall Keller Hall Physical Science Building Pacific Ocean Science & Technology Kuykendall AnnexStairs Pond UH Parking Access & Mid-Pacific Institute Exit M¯anoa Innovation Center and Kau Auxiliary Services Pacific Biomedical Warehouse Agricultural Science Shops Campus Security n Landscaping

  16. UH Parking Access & Mid-Pacific Institute

    E-Print Network [OSTI]

    Hall Keller Hall Physical Science Building Pacific Ocean Science & Technology Kuykendall Annex44 44 Stairs Pond UH Parking Access & Mid-Pacific Institute Exit M¯anoa Innovation Center and Kau Auxiliary Services Pacific Biomedical Warehouse Agricultural Science Shops Campus Security n Landscaping

  17. Accessibility Application Blue Badge Car Park UK

    E-Print Network [OSTI]

    Painter, Kevin

    i Accessibility Application Blue Badge Car Park UK Konstantinos Grassos H00113751 August 2012. In this project, Blue Badge Car Park (BBCP) is presented which is actually a mobile-based park finder application. It specifically focuses on finding parking spaces for wheelchair users, which are indicated by the blue badge

  18. ACCESS TO INFORMATION MANUAL NATIONAL RESEARCH FOUNDATION

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    of poverty, wealth creation and knowledge generation and preservation. The NRF views the Promotion of Access an opportunity to deal with knowledge and information management in a holistic and integrated manner so, but rather an opportunity to deal with information management in a holistic and integrated manner. The NRF

  19. Limitations on area compression of beams from pierce guns

    SciTech Connect (OSTI)

    Yakovlev, V.P.; Nezhevenko, O.A. [Omega-P Inc., 202008 Yale Station, New Haven, Connecticut 06520-2008 (United States)

    1999-05-01

    An important limitation for rf sources such as klystrons and magnicons, designed for 10{close_quote}s of MW power outputs at cm-wavelengths, is the transverse electron beam size. Cathode current density limits require high beam area compressions to obtain small transverse beam areas for fixed currents. This paper discusses the limitations to high beam area compression, namely geometrical aberrations and thermal spread in transverse velocities. Compensation can oftentimes be introduced for aberrations, but thermal velocity spread presents a fundamental limitation. Examples where subtle compensation strategies were employed are discussed for three guns with 100 MW beam power, and area compressions greater than 2000:1. Two of these guns have already been built. A clear determination of effective cathode temperature has yet to be found experimentally, but possible means to measure it are discussed. {copyright} {ital 1999 American Institute of Physics.}

  20. Nuclear Structure at the Limits

    SciTech Connect (OSTI)

    Nazarewicz, W.

    1998-01-12

    One of the frontiers of today?s nuclear science is the ?journey to the limits? of atomic charge and nuclear mass, of neutron-to-proton ratio, and of angular momentum. The tour to the limits is not only a quest for new, exciting phenomena, but the new data are expected, as well, to bring qualitatively new information about the fundamental properties of the nucleonic many-body system, the nature of the nuclear interaction, and nucleonic correlations at various energy-distance scales. In this series of lectures, current developments in nuclear structure at the limits are discussed from a theoretical perspective, mainly concentrating on medium-mass and heavy nuclei.

  1. Nuclear Structure at the Limits

    SciTech Connect (OSTI)

    Nazarewicz, Witold

    1997-12-31

    One of the frontiers of today`s nuclear science is the ``journey to the limits``: of atomic charge and nuclear mass, of neutron-to-proton ratio, and of angular momentum. The tour to the limits is not only a quest for new, exciting phenomena but the new data are expected, as well, to bring qualitatively new information about the fundamental properties of the nucleonic many-body system, the nature of the nuclear interaction, and nucleonic correlations at various energy-distance scales. In this talk, current developments in nuclear structure at the limits are discussed from a theoretical perspective.

  2. Electron capture cross sections for stellar nucleosynthesis

    E-Print Network [OSTI]

    P. G. Giannaka; T. S. Kosmas

    2015-02-25

    In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions. Towards this aim we exploit the advantages of a refined version of the proton-neutron quasi-particle random-phase approximation (pn-QRPA) and carry out state-by-state evaluations of the rates of exclusive processes that lead to any of the accessible transitions within the chosen model space. In the second stage of our present study, we translate the above mentioned $e^-$-capture cross sections to the stellar environment ones by inserting the temperature dependence through a Maxwell-Boltzmann distribution describing the stellar electron gas. As a concrete nuclear target we use the $^{66}Zn$ isotope, which belongs to the iron group nuclei and plays prominent role in stellar nucleosynthesis at core collapse supernovae environment.

  3. Electron Beam for LHC

    E-Print Network [OSTI]

    Mieczyslaw Witold Krasny

    2004-05-13

    A method of delivering a monochromatic electron beam to the LHC interaction points is proposed. In this method, heavy ions are used as carriers of the projectile electrons. Acceleration, storage and collision-stability aspects of such a hybrid beam is discussed and a new beam-cooling method is presented. This discussion is followed by a proposal of the Parasitic Ion-Electron collider at LHC (PIE@LHC). The PIE@LHC provides an opportunity, for the present LHC detectors, to enlarge the scope of their research program by including the program of electron-proton and electron-nucleuscollisions with minor machine and detector investments.

  4. SOLUTION-PROCESSED INORGANIC ELECTRONICS

    E-Print Network [OSTI]

    Bakhishev, Teymur

    2011-01-01

    Conductors for Flexible Electronics,” Journal of Thefor low-cost and flexible electronics. Parts of his workwidespread use in flexible electronics. From an economic

  5. SOLUTION-PROCESSED INORGANIC ELECTRONICS

    E-Print Network [OSTI]

    Bakhishev, Teymur

    2011-01-01

    Solution-Processed Graphene Electronics,” Nano Letters, vol.applications,” Organic Electronics, vol. 12, no. 2, pp. 249-design in organic electronics by dual-gate technology,” in

  6. Coronal electron confinement by double layers

    SciTech Connect (OSTI)

    Li, T. C.; Drake, J. F.; Swisdak, M.

    2013-12-01

    In observations of flare-heated electrons in the solar corona, a longstanding problem is the unexplained prolonged lifetime of the electrons compared to their transit time across the source. This suggests confinement. Recent particle-in-cell (PIC) simulations, which explored the transport of pre-accelerated hot electrons through ambient cold plasma, showed that the formation of a highly localized electrostatic potential drop, in the form of a double layer (DL), significantly inhibited the transport of hot electrons. The effectiveness of confinement by a DL is linked to the strength of the DL as defined by its potential drop. In this work, we investigate the scaling of the DL strength with the hot electron temperature by PIC simulations and find a linear scaling. We demonstrate that the strength is limited by the formation of parallel shocks. Based on this, we analytically determine the maximum DL strength, and also find a linear scaling with the hot electron temperature. The DL strength obtained from the analytic calculation is comparable to that from the simulations. At the maximum strength, the DL is capable of confining a significant fraction of hot electrons in the source.

  7. Bump formation in the runaway electron tail

    E-Print Network [OSTI]

    Decker, J; Fülöp, T

    2015-01-01

    Runaway electrons are generated in a magnetized plasma when the parallel electric field exceeds a critical value. For such electrons with energies typically reaching tens of MeV, the Abraham-Lorentz-Dirac (ALD) radiation force, in reaction to the synchrotron emission, is significant and can be the dominant process limiting the electron acceleration. The effect of the ALD-force on runaway electron dynamics in a homogeneous plasma is investigated using the relativistic finite-difference Fokker-Planck codes LUKE [Decker & Peysson, Report EUR-CEA-FC-1736, Euratom-CEA, (2004)] and CODE [Landreman et al, Comp. Phys. Comm. 185, 847 (2014)]. Under the action of the ALD force, we find that a bump is formed in the tail of the electron distribution function if the electric field is sufficiently large. We also observe that the energy of runaway electrons in the bump increases with the electric field amplitude, while the population increases with the bulk electron temperature. The presence of the bump divides the elec...

  8. Leveraging Heterogeneity in DRAM Main Memories to Accelerate Critical Word Access Niladrish Chatterjee Manjunath Shevgoor Rajeev Balasubramonian Al Davis

    E-Print Network [OSTI]

    Balasubramonian, Rajeev

    manufacturers have produced chips with vastly differing latency and energy characteristics. This provides different latencies and energy per access. The limited prior work in this area has explored smart placement in a low-energy region. We design an architecture that has low complexity and that can accelerate

  9. Electron thermal conductivity owing to collisions between degenerate electrons

    E-Print Network [OSTI]

    P. S. Shternin; D. G. Yakovlev

    2006-08-17

    We calculate the thermal conductivity of electrons produced by electron-electron Coulomb scattering in a strongly degenerate electron gas taking into account the Landau damping of transverse plasmons. The Landau damping strongly reduces this conductivity in the domain of ultrarelativistic electrons at temperatures below the electron plasma temperature. In the inner crust of a neutron star at temperatures T electron conductivity due to electron-ion (electron-phonon) scattering and becomes competitive with the the electron conductivity due to scattering of electrons by impurity ions.

  10. Electron emission of stripping foil and collimation system for CSNS/RCS

    E-Print Network [OSTI]

    Huang, Ming-Yang; Wang, Na; Wang, Sheng

    2015-01-01

    For the Rapid Cycling Synchrotron of the China Spallation Neutron Source (CSNS/RCS), the electron emission plays an important role in the accelerator limitation. The interactions between the proton beam and the stripping foil were studied, and the electron scattering processes were simulated by the ORBIT and FLUKA codes. Then, the electron energy distribution and the electron yielding rate can be given. Furthermore, the interactions between the proton beam and the collimation system were studied, and the electron scattering processes were simulated. Then, the energy distribution of the primary electron emission can be given and the yielding rate of the primary electron can be obtained.

  11. National Radiobiology Archives distributed access programmer's guide

    SciTech Connect (OSTI)

    Prather, J. C. [Linfield Coll., McMinnville, OR (United States); Smith, S. K.; Watson, C. R. [Pacific Northwest Lab., Richland, WA (United States)

    1991-12-01

    The National Radiobiology Archives is a comprehensive effort to gather, organize, and catalog original data, representative specimens, and supporting materials related to significant radiobiology studies. This provides researchers with information for analyses which compare or combine results of these and other studies and with materials for analysis by advanced molecular biology techniques. This Programmer's Guide document describes the database access software, NRADEMO, and the subset loading script NRADEMO/MAINT/MAINTAIN, which comprise the National Laboratory Archives Distributed Access Package. The guide is intended for use by an experienced database management specialist. It contains information about the physical and logical organization of the software and data files. It also contains printouts of all the scripts and associated batch processing files. It is part of a suite of documents published by the National Radiobiology Archives.

  12. Electron emitting filaments for electron discharge devices

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA); Pincosy, Philip A. (Oakland, CA); Ehlers, Kenneth W. (Alamo, CA)

    1988-01-01

    Electrons are copiously emitted by a device comprising a loop-shaped filament made of lanthanum hexaboride. The filament is directly heated by an electrical current produced along the filament by a power supply connected to the terminal legs of the filament. To produce a filament, a diamond saw or the like is used to cut a slice from a bar made of lanthanum hexaboride. The diamond saw is then used to cut the slice into the shape of a loop which may be generally rectangular, U-shaped, hairpin-shaped, zigzag-shaped, or generally circular. The filaments provide high electron emission at a relatively low operating temperature, such as 1600.degree. C. To achieve uniform heating, the filament is formed with a cross section which is tapered between the opposite ends of the filament to compensate for non-uniform current distribution along the filament due to the emission of electrons from the filament.

  13. Electron emitting filaments for electron discharge devices

    DOE Patents [OSTI]

    Leung, K.N.; Pincosy, P.A.; Ehlers, K.W.

    1983-06-10

    Electrons are copiously emitted by a device comprising a loop-shaped filament made of lanthanum hexaboride. The filament is directly heated by an electrical current produced along the filament by a power supply connected to the terminal legs of the filament. To produce a filament, a diamond saw or the like is used to cut a slice from a bar made of lanthanum hexaboride. The diamond saw is then used to cut the slice into the shape of a loop which may be generally rectangular, U-shaped, hairpin-shaped, zigzag-shaped, or generally circular. The filaments provide high electron emission at a relatively low operating temperature, such as 1600/sup 0/C. To achieve uniform heating, the filament is formed with a cross section which is tapered between the opposite ends of the filament to compensate for nonuniform current distribution along the filament due to the emission of electrons from the filament.

  14. Metamaterials for Ballistic Electrons

    E-Print Network [OSTI]

    Daniela Dragoman; Mircea Dragoman

    2007-01-02

    The paper presents a metamaterial for ballistic electrons, which consists of a quantum barrier formed in a semiconductor with negative effective electron mass. This barrier is the analogue of a metamaterial for electromagnetic waves in media with negative electrical permittivity and magnetic permeability. Besides applications similar to those of optical metamaterials, a nanosized slab of a metamaterial for ballistic electrons, sandwiched between quantum wells of positive effective mass materials, reveals unexpected conduction properties, e.g. single or multiple room temperature negative differential conductance regions at very low voltages and with considerable peak-to-valley ratios, while the traversal time of ballistic electrons can be tuned to larger or smaller values than in the absence of the metamaterial slab. Thus, slow and fast electrons, analogous to slow and fast light, occur in metamaterials for ballistic electrons.

  15. Generalized Geometric Quantum Speed Limits

    E-Print Network [OSTI]

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

    2015-09-30

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

  16. Low latency memory access and synchronization

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Ohmacht, Martin (Brewster, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2007-02-06

    A low latency memory system access is provided in association with a weakly-ordered multiprocessor system. Each processor in the multiprocessor shares resources, and each shared resource has an associated lock within a locking device that provides support for synchronization between the multiple processors in the multiprocessor and the orderly sharing of the resources. A processor only has permission to access a resource when it owns the lock associated with that resource, and an attempt by a processor to own a lock requires only a single load operation, rather than a traditional atomic load followed by store, such that the processor only performs a read operation and the hardware locking device performs a subsequent write operation rather than the processor. A simple prefetching for non-contiguous data structures is also disclosed. A memory line is redefined so that in addition to the normal physical memory data, every line includes a pointer that is large enough to point to any other line in the memory, wherein the pointers to determine which memory line to prefetch rather than some other predictive algorithm. This enables hardware to effectively prefetch memory access patterns that are non-contiguous, but repetitive.

  17. Low latency memory access and synchronization

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Ohmacht, Martin (Brewster, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY), Vranas; Pavlos M. (Bedford Hills, NY)

    2010-10-19

    A low latency memory system access is provided in association with a weakly-ordered multiprocessor system. Bach processor in the multiprocessor shares resources, and each shared resource has an associated lock within a locking device that provides support for synchronization between the multiple processors in the multiprocessor and the orderly sharing of the resources. A processor only has permission to access a resource when it owns the lock associated with that resource, and an attempt by a processor to own a lock requires only a single load operation, rather than a traditional atomic load followed by store, such that the processor only performs a read operation and the hardware locking device performs a subsequent write operation rather than the processor. A simple prefetching for non-contiguous data structures is also disclosed. A memory line is redefined so that in addition to the normal physical memory data, every line includes a pointer that is large enough to point to any other line in the memory, wherein the pointers to determine which memory line to prefetch rather than some other predictive algorithm. This enables hardware to effectively prefetch memory access patterns that are non-contiguous, but repetitive.

  18. Solar access of residential rooftops in four California cities

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin

    2010-05-14

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S+SW+W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about two to four hours after sunrise and about two to four hours before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss results from shading by trees and buildings in neighboring parcels.

  19. Solar access of residential rooftops in four California cities

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Pomerantz, Melvin [Heat Island Group, Lawrence Berkeley National Laboratory (United States); Gupta, Smita [California Energy Commission, Sacramento, CA 95814 (United States)

    2009-12-15

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes residential rooftop shading in Sacramento, San Jose, Los Angeles and San Diego, CA. Our analysis can be used to better estimate power production and/or thermal collection by rooftop solar-energy equipment. It can also be considered when designing programs to plant shade trees. High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a well-treed 2.5-4 km{sup 2} residential neighborhood. On-hour shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Values in future years were determined by repeating these calculations after simulating tree growth. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels. For the subset of S + SW + W-facing planes on which solar equipment is commonly installed for maximum solar access, absolute light loss in spring, summer and fall peaked about 2 to 4 h after sunrise and about 2 to 4 h before sunset. The fraction of annual insolation lost to shading increased from 0.07-0.08 in the year of surface-height measurement to 0.11-0.14 after 30 years of tree growth. Only about 10% of this loss resulted from shading by trees and buildings in neighboring parcels. (author)

  20. Development of hollow electron beams for proton and ion collimation

    SciTech Connect (OSTI)

    Stancari, G.; Drozhdin, A.I.; Kuznetsov, G.; Shiltsev, V.; Still, D.A.; Valishev, A.; Vorobiev, L.G.; Assmann, R.; Kabantsev, A.

    2010-06-01

    Magnetically confined hollow electron beams for controlled halo removal in high-energy colliders such as the Tevatron or the LHC may extend traditional collimation systems beyond the intensity limits imposed by tolerable material damage. They may also improve collimation performance by suppressing loss spikes due to beam jitter and by increasing capture efficiency. A hollow electron gun was designed and built. Its performance and stability were measured at the Fermilab test stand. The gun will be installed in one of the existing Tevatron electron lenses for preliminary tests of the hollow-beam collimator concept, addressing critical issues such as alignment and instabilities of the overlapping proton and electron beams.

  1. Ceramic Electron Multiplier

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

    Comby, G.

    1996-10-01

    The Ceramic Electron Multipliers (CEM) is a compact, robust, linear and fast multi-channel electron multiplier. The Multi Layer Ceramic Technique (MLCT) allows to build metallic dynodes inside a compact ceramic block. The activation of the metallic dynodes enhances their secondary electron emission (SEE). The CEM can be used in multi-channel photomultipliers, multi-channel light intensifiers, ion detection, spectroscopy, analysis of time of flight events, particle detection or Cherenkov imaging detectors. (auth)

  2. Field emission electron source

    DOE Patents [OSTI]

    Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

    2000-01-01

    A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

  3. Auctions to gas transmission access : the British experience

    E-Print Network [OSTI]

    McDaniel, Tanga

    2002-01-01

    When access to monopoly owned networks is constrained auctioning access rights can increase the efficiency of allocations relative to negotiation and grandfathering when there is sufficient competition among network users. ...

  4. Phase II Smart Grid Data Access Funding Opportunity Winner Announced...

    Office of Environmental Management (EM)

    Phase II Smart Grid Data Access Funding Opportunity Winner Announced Phase II Smart Grid Data Access Funding Opportunity Winner Announced January 8, 2014 - 12:00am Addthis The...

  5. Sensing-based Opportunistic Channel Access Department of Computer Science

    E-Print Network [OSTI]

    Liu, Xin

    and adapt to appropriate frequency, power, and transmission schemes. They can opportunistically access initiatives and advanced radio technology, more flexible opportunistic spectrum access has great potential initiatives towards flexible and dynamic spectrum policies, including regulation recommendations [7

  6. BUILDING CONNECTION ACCESS VIA ENTRANCE NEAR ROUNDABOUT AND ENTRANCE FACING

    E-Print Network [OSTI]

    Shoubridge, Eric

    1ST FLOOR ENTRANCE ELEVATOR WASHROOMS BUILDING CONNECTION ACCESS VIA ENTRANCE NEAR ROUNDABOUT AND 7TH FLOOR CONNECT WITH MCINTYRE MEDICAL BUILDING LIFE SCIENCES COMPLEX 3649 PROMENADE SIR WASHROOM #12;ENTRANCE ELEVATOR WASHROOMS BUILDING CONNECTION ACCESS VIA ENTRANCE NEAR ROUNDABOUT

  7. CHANGE IN ACCEPTABLE ID DOCUMENTS FOR JLAB ACCESS:

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

    JLAB ACCESS: The REAL ID Act (Public Law 109-13) now determines which state driver's license can be presented and accepted as a valid ID document for access to Jefferson Lab. The...

  8. Controlling Graphene's Electronic Structure

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

    semiconductor devices at low temperatures and high magnetic fields). Among its novel properties, graphene's electrical charge carriers (electrons and holes) move through a solid...

  9. Controlling Graphene's Electronic Structure

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

    was reopened by the excess of electron charge-carriers on the graphene's surface layer. Progressive potassium deposition further enhanced the n-type doping. These results...

  10. Exploring the Energy Landscape for QA to QB Electron Transfer in Bacterial

    E-Print Network [OSTI]

    Gunner, Marilyn

    ) is rate-limited by conformational changes rather than electron tunneling. QB movement from a distal trapped in a different conformation. Now electron transfer from QA - to QB occurs even below 40 KExploring the Energy Landscape for QA - to QB Electron Transfer in Bacterial Photosynthetic

  11. Graphene/MoS2 Hybrid Technology for Large-Scale Two-Dimensional Electronics

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    mechanical flexibility, optical transparency, and favorable transport properties for realizing electronic and circuits based on this 2D heterostructure pave the way for practical flexible transparent electronics, flexible and transparent As Moore's law approaches its physical limit in Si-based electronics, the device

  12. Providing Internet access to Los Alamos National Laboratory technical reports: A case history in providing public access to previously restricted documents

    SciTech Connect (OSTI)

    Collins, K.A.

    1996-12-31

    The Los Alamos National Laboratory (LANL) Research Library recently fulfilled a strategic goal of providing worldwide desktop access via the Internet to full-image files of the complete unclassified holdings of Los Alamos technical reports in its Report Collection. This effort began in late 1994 with the scanning of paper and microfiche format reports. Concurrently, the Research Library helped to initiate shifting the model for publishing new technical reports from paper to electronic; the files could then be directly mounted on the Research Library`s Web server. Providing desktop access to these reports was instrumental in expediting the development of internal policies that would better define what documents, previously restricted to the general public, could be publicly released. Undoubtedly, the most significant category of such reports were previously classified reports that had been declassified, but had not gone through a further review for public release. Collaboration with LANL`s Classification Group led to approval for public release of 97% of these reports. The LANL Research Library`s Web site now offers unique and unprecedented access to the world of a huge body of technical reports never available before anywhere in any form. This paper discusses the issues and steps involved in this achievement.

  13. Peering, Transit, Interconnection: Internet Access in Central Europe

    E-Print Network [OSTI]

    McGarty, Terrence P.

    2002-07-22

    This paper presents a review of the alternatives for Internet access in Central Europe and the evolution of the

  14. LOCH: Planning for Open Access in REF - Discussion Points 

    E-Print Network [OSTI]

    Tate, Dominic; Aucock, Janet

    2015-03-19

    Slides and checklist from facilitated discussion session from ARMA Open Access Good Practice event (London 19-03-2015).

  15. Industrial engineering study of tank farm access qualifications and validations

    SciTech Connect (OSTI)

    Sterling, S.G., Westinghouse Hanford

    1996-07-01

    Engineering study of alternatives to reduce costs of validation worker`s qualification prior to Tank Farm area access.

  16. A Utility Regulator's Guide to Data Access for Commercial Building...

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

    benchmarking. A Utility Regulator's Guide to Data Access for Commercial Building Energy Performance Benchmarking More Documents & Publications Better Buildings Challenge...

  17. IBM Human Ability and Accessibility Center Executive brief

    E-Print Network [OSTI]

    to making products and services accessible, to its commitment to research, IBM has been an industry leader graduated from New York's Pace University with a Master's degree in computer science. A skilled and highlyIBM Human Ability and Accessibility Center Executive brief Accessibility at IBM: An integrated

  18. Abstract of thesis Separating Instruction Fetches from Memory Accesses : ILAR

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    Abstract of thesis Separating Instruction Fetches from Memory Accesses : ILAR (Instruction Line access performance. This thesis investigates applying the same ideas to improve instruction access. ILAR instruction. This thesis proposes an instruction set architecture for ILAR, investigates a mechanism to load

  19. CARPOOL: Extending Free Internet Access over DTN in Urban Environments

    E-Print Network [OSTI]

    Tsaoussidis, Vassilis

    - tolerant access to the Internet for everyone, and (iii) has energy- efficient design that delegates allCARPOOL: Extending Free Internet Access over DTN in Urban Environments Ioannis Komnios and Vassilis-tolerant Internet access to all. Targeting an urban scenario, where means of public transport, such as buses

  20. Time Series Photometry Data: Standard Access, Standard Formats

    E-Print Network [OSTI]

    Holl, András

    Time Series Photometry Data: Standard Access, Standard Formats Andr#19; as Holl Konkoly Observatory a discussion on data access and #12;le format aspects of photometry. Introduction Presently there is time series photometry data available in public databases, but the access to these varies from one collection

  1. Optimal Multiple Assignments with (,)-Scheme for General Access Structures

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Optimal Multiple Assignments with (,)-Scheme for General Access Structures Qiang Li, Xiangxue Li to construct an optimal multiple assignment with threshold schemes for general access structure. In this paper the values of either 0 or 1. We also show that given a complete access structure, an optimal scheme may

  2. Harvard Open Access Project Good Practices For University

    E-Print Network [OSTI]

    Chen, Yiling

    Talking about a policy 66 Revising this guide 67 Additional resources 71 (Endnotes) #12;Good Practices Practices for University Open-Access Policies Preface This is a guide to good practices for university open2013-09-30 Harvard Open Access Project Good Practices For University Open-Access Policies Edited

  3. SECURITY FOR ENTERPRISE TELEWORK AND REMOTE ACCESS Karen Scarfone, Editor

    E-Print Network [OSTI]

    device and a remote access server, often a virtual private network (VPN) gateway. The tunnel uses based on their high-level architectures: tunneling, portals, remote desktop access, and direct application access. Tunneling involves establishing a secure communications tunnel between a telework client

  4. University of Calgary Human Resources Accessing HR Manager Reports

    E-Print Network [OSTI]

    Calgary, University of

    University of Calgary ­ Human Resources Accessing HR Manager Reports For those who are Reports to Managers (i.e. those who have employees reporting to them), use this guide to access Manager Reports, which provide information on those employees within your reporting structure. Note: Access to Manager Reports

  5. Solvent Accessibility of the Thrombin-thrombomodulin Interface

    E-Print Network [OSTI]

    Komives, Elizabeth A.

    Solvent Accessibility of the Thrombin- thrombomodulin Interface Jeffrey G. Mandell1 , Abel Baerga Characterization RIKEN 2-1 Hirosawa, Wako, Saitama 351-01, Japan The kinetics of solvent accessibility exchange due to solvent accessibility at the interface from H/2 H exchange due to complex dissociation

  6. Open Access Data in Polar and Cryospheric Remote Sensing

    E-Print Network [OSTI]

    Pope, Allen; Rees, W. Gareth; Fox, Adrian J.; Fleming, Andrew

    2014-07-01

    , access, sharing and use. Keywords: polar; Arctic; Antarctic; cryosphere; glaciers; permafrost; snow; sea ice; data; open access; multispectral; SAR; passive microwave; airphot; scatterometry; DEMs; software OPEN ACCESS Remote Sens. 2014, 6 6184 1... equivalent, ocean circulation, tree line migration, permafrost lake dynamics, circumpolar environmental impact assessment or penguin populations, recent research has clearly demonstrated the increasing importance of Earth observation. Nevertheless, many...

  7. Access Control for Home Data Sharing: Attitudes, Needs and Practices

    E-Print Network [OSTI]

    Bauer, Lujo

    these findings and present a set of associated guidelines for designing usable access- control systems- tal models of access control and security are often misaligned with current systems. We detail organizations have system administrators to set up and maintain access-control policies, but home users typ

  8. Access Point Selection for Improving Throughput Fairness in Wireless LANs

    E-Print Network [OSTI]

    Siris, Vasilios A.

    Access Point Selection for Improving Throughput Fairness in Wireless LANs Vasilios A. Siris investigate the problem of access point selection in wireless LANs based on the IEEE 802.11 standard, when solely at the wireless stations, which passively monitor the activity of each access point's channel

  9. Invited Viewer Invited Viewer iSIS Portal Access

    E-Print Network [OSTI]

    Dennett, Daniel

    1 Invited Viewer Invited Viewer iSIS Portal Access Tufts "Invited Viewers" such as parents and spouses can be granted view-only access to a student's iSIS secure personal information. Students previously registered by another student or you do not have a Tufts Username and active iSIS access (most

  10. Exploiting lens aberrations to create electron vortex beams

    E-Print Network [OSTI]

    L. Clark; A. Béché; G. Guzzinati; A. Lubk; M. Mazilu; R. Van Boxem; J. Verbeeck

    2013-07-18

    A model for a new electron vortex beam production method is proposed and experimentally demonstrated. The technique calls on the controlled manipulation of the degrees of freedom of the lens aberrations to achieve a helical phase front. These degrees of freedom are accessible by using the corrector lenses of a transmission electron microscope. The vortex beam is produced through a particular alignment of these lenses into a specifically designed astigmatic state and applying an annular aperture in the condensor plane. Experimental results are found to be in good agreement with simulations.

  11. Simulations of Gaussian electron guns for RHIC electron lens

    SciTech Connect (OSTI)

    Pikin, A.

    2014-02-28

    Simulations of two versions of the electron gun for RHIC electron lens are presented. The electron guns have to generate an electron beam with Gaussian radial profile of the electron beam density. To achieve the Gaussian electron emission profile on the cathode we used a combination of the gun electrodes and shaping of the cathode surface. Dependence of electron gun performance parameters on the geometry of electrodes and the margins for electrodes positioning are presented.

  12. Financing medicine's last mile in Uganda : exploring linkages between patient access to medicine and supply chain access to finance

    E-Print Network [OSTI]

    Dokmo, Charles Alexander

    2015-01-01

    Pharmaceutical companies operating in Africa are well positioned to contribute to the United Nations' ongoing efforts to improve access to medicine in Africa. This thesis explores how access to finance for businesses in ...

  13. Last Name First Name Ext. Access E-mail Last Name First Name Ext. Remote Access E-mail

    E-Print Network [OSTI]

    Columbia University

    Last Name First Name Ext. Remote Access E-mail Last Name First Name Ext. Remote Access E-mail Adamo-781-7186 jsquires Ghani Saleh 8979 sghani Strom David 8938 dstrom Gitelman Yitzhak 8943 ygitelma Sydor Elisabeth

  14. HM-ACCESS Project (Framework for the Use of Electronic Shipping...

    Office of Environmental Management (EM)

    Safety Engineering and Research Division May 2012 U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 2 H-azardous M-aterials A-utomated...

  15. Factory capacity limits Machine dependencies

    E-Print Network [OSTI]

    Foley, Simon

    Factory capacity limits Machine dependencies Employee scheduling Raw material availability Other internal operations (and also possibly the actions of other suppliers that supply raw materials) and at an international workshop at the multi-agent conference (AAMAS'06). Manufacturer Customer demand Penalties for non

  16. Accessibility Resources for Western Resources specified below are intended to supplement those listed in the Accessible Service and

    E-Print Network [OSTI]

    Lennard, William N.

    the provision of accessible text for students who are blind or have low vision. FM System Head Sets Head sets

  17. Linkping University Electronic Press

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Linköping University Electronic Press Strategic Plan 2009-2011 December, 2008 1 #12;1. Background As of January 1st , 2008, Linköping University Electronic Press (LiU E-Press) became a unit withinU E-Press. For these reasons, the Strategic Plan for LiU E-Press (2007- 2009) is being updated

  18. Electronic Mail Analysis Capability

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

    2001-01-08

    Establishes the pilot program to test the Department of Energy (DOE) Electronic Mail Analysis Capability (EMAC), which will be used to monitor and analyze outgoing and incoming electronic mail (e-mail) from the National Nuclear Security Administration (NNSA) and DOE laboratories that are engaged in nuclear weapons design or work involving special nuclear material. No cancellation.

  19. ASSISTED ELECTRONIC COMMUNICATION IN

    E-Print Network [OSTI]

    ;Department of Health Project 121-7184 Final Report 3 Executive Summary In the Assisted Electronic Project 121-7184 Final Report - 05.04.04 Kettering General NHS Hospital Trust University of Hertfordshire of Health Project 121-7184 Final Report 2 KEY to Common Abbreviations used: AEC(P) ­ Assisted Electronic

  20. A KNOWLEDGE BASED SYSTEM FOR PROVIDING INTELLIGENT ACCESS TO A PETROLEUM USER DATABASE

    E-Print Network [OSTI]

    Rosenberg, Steven

    2011-01-01

    INTELLIGENT ACCESS TO A PETROLEUM USER DATABASE StevenINTELLIGENT ACCESS TO A PETROLEUM USER DATABASE StevenINTELLIGENT ACCESS TO A PETROLEUM USER DATABASE Steven

  1. Guidelines for Internet Access to Journals This information provides publishers' Guidelines for Institutional Subscribers regarding Internet Access to Uni-

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    Guidelines for Internet Access to Journals This information provides publishers' Guidelines for Institutional Subscribers regarding Internet Access to Uni- versity of Wisconsin Press Journal content. · INTERNET ACCESS is defined as the viewing and use of subscribed Journal content online via the World Wide

  2. Parental Internet Access Consent Form Student: By signing below, I understand that access to the University of Nevada,

    E-Print Network [OSTI]

    Parental Internet Access Consent Form Student: By signing below, I understand that access or Guardian: I grant permission for my child to be allowed access to the Internet through facilities of the Internet's interconnected systems to which the University connects and does not warrant the accuracy

  3. Electron: Cluster interactions

    SciTech Connect (OSTI)

    Scheidemann, A.A.; Kresin, V.V.; Knight, W.D.

    1994-02-01

    Beam depletion spectroscopy has been used to measure absolute total inelastic electron-sodium cluster collision cross sections in the energy range from E {approximately} 0.1 to E {approximately} 6 eV. The investigation focused on the closed shell clusters Na{sub 8}, Na{sub 20}, Na{sub 40}. The measured cross sections show an increase for the lowest collision energies where electron attachment is the primary scattering channel. The electron attachment cross section can be understood in terms of Langevin scattering, connecting this measurement with the polarizability of the cluster. For energies above the dissociation energy the measured electron-cluster cross section is energy independent, thus defining an electron-cluster interaction range. This interaction range increases with the cluster size.

  4. Electrons and Mirror Symmetry

    SciTech Connect (OSTI)

    Kumar, Krishna (University of Massachusetts, Amherst) [University of Massachusetts, Amherst

    2007-04-04

    The neutral weak force between an electron and a target particle, mediated by the Z boson, can be isolated by measuring the fractional change under a mirror reflection of the scattering probability of relativistic longitudinally polarized electrons off unpolarized targets. This technique yields neutral weak force measurements at a length scale of 1 femtometer, in contrast to high energy collider measurements that probe much smaller length scales. Study of the variation of the weak force over a range of length scales provides a stringent test of theory, complementing collider measurements. We describe a recent measurement of the neutral weak force between two electrons by the E158 experiment at the Stanford Linear Accelerator Center. While the weak force between an electron and positron has been extensively studied, that between two electrons had never directly been measured. We conclude by discussing prospects for even more precise measurements at future facilities.

  5. Electrons and Mirror Symmetry

    ScienceCinema (OSTI)

    Kumar, Krishna

    2009-09-01

    The neutral weak force between an electron and a target particle, mediated by the Z boson, can be isolated by measuring the fractional change under a mirror reflection of the scattering probability of relativistic longitudinally polarized electrons off unpolarized targets. This technique yields neutral weak force measurements at a length scale of 1 femtometer, in contrast to high energy collider measurements that probe much smaller length scales. Study of the variation of the weak force over a range of length scales provides a stringent test of theory, complementing collider measurements. We describe a recent measurement of the neutral weak force between two electrons by the E158 experiment at the Stanford Linear Accelerator Center. While the weak force between an electron and positron has been extensively studied, that between two electrons had never directly been measured. We conclude by discussing prospects for even more precise measurements at future facilities.

  6. Improving Access to Foundational Energy Performance Data

    SciTech Connect (OSTI)

    Studer, D.; Livingood, W.; Torcellini, P.

    2014-08-01

    Access to foundational energy performance data is key to improving the efficiency of the built environment. However, stakeholders often lack access to what they perceive as credible energy performance data. Therefore, even if a stakeholder determines that a product would increase efficiency, they often have difficulty convincing their management to move forward. Even when credible data do exist, such data are not always sufficient to support detailed energy performance analyses, or the development of robust business cases. One reason for this is that the data parameters that are provided are generally based on the respective industry norms. Thus, for mature industries with extensive testing standards, the data made available are often quite detailed. But for emerging technologies, or for industries with less well-developed testing standards, available data are generally insufficient to support robust analysis. However, even for mature technologies, there is no guarantee that the data being supplied are the same data needed to accurately evaluate a product?s energy performance. To address these challenges, the U.S. Department of Energy funded development of a free, publically accessible Web-based portal, the Technology Performance Exchange(TM), to facilitate the transparent identification, storage, and sharing of foundational energy performance data. The Technology Performance Exchange identifies the intrinsic, technology-specific parameters necessary for a user to perform a credible energy analysis and includes a robust database to store these data. End users can leverage stored data to evaluate the site-specific performance of various technologies, support financial analyses with greater confidence, and make better informed procurement decisions.

  7. WYDOT Access Manual | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin,Village of Wellington,FL97-11 SEPAStorageWWTP PowerAccess Manual

  8. Open Access: From Myth to Paradox

    SciTech Connect (OSTI)

    Ginsparg, Paul (Cornell University) [Cornell University

    2009-05-06

    True open access to scientific publications not only gives readers the possibility to read articles without paying subscription, but also makes the material available for automated ingestion and harvesting by 3rd parties. Once articles and associated data become universally treatable as computable objects, openly available to 3rd party aggregators and value-added services, what new services can we expect, and how will they change the way that researchers interact with their scholarly communications infrastructure? I will discuss straightforward applications of existing ideas and services, including citation analysis, collaborative filtering, external database linkages, interoperability, and other forms of automated markup, and speculate on the sociology of the next generation of users.

  9. Open Access: From Myth to Paradox

    ScienceCinema (OSTI)

    Ginsparg, Paul [Cornell University, Ithaca, New York, United States

    2010-01-08

    True open access to scientific publications not only gives readers the possibility to read articles without paying subscription, but also makes the material available for automated ingestion and harvesting by 3rd parties. Once articles and associated data become universally treatable as computable objects, openly available to 3rd party aggregators and value-added services, what new services can we expect, and how will they change the way that researchers interact with their scholarly communications infrastructure? I will discuss straightforward applications of existing ideas and services, including citation analysis, collaborative filtering, external database linkages, interoperability, and other forms of automated markup, and speculate on the sociology of the next generation of users.

  10. Access Your Files | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposalsAboutAcceleratingthYour Files Access

  11. UF Access List | Stanford Synchrotron Radiation Lightsource

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two ElectrondiesellonglonggasolineU.S. 9,StudentUF Access

  12. Access Solar Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLC Jump to: navigation, search Name: Access Solar

  13. Accessing the Laboratory | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access

  14. Accounts & Access | Argonne Leadership Computing Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery Act Recovery ActARMAccelerators,Access Account

  15. User Access Program | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWyko NT33004.DepartmentUsedUser Access

  16. Access to OUO | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDIT REPORT: OAS-L-13-11Program:AcceleratingOUO Access to

  17. Access to UCNI | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDIT REPORT: OAS-L-13-11Program:AcceleratingOUO AccessUCNI

  18. REMOTE ACCESS SERVICES | Department of Energy

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

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

  19. Aerogels for electronics

    SciTech Connect (OSTI)

    Hrubesh, L.W.

    1994-10-01

    In addition to their other exceptional properties, aerogels also exhibit unusual dielectric and electronic properties due to their nano-sized structures and high porosities. For example, aerogels have the lowest dielectric constants measured for a solid material (having values approaching 1.0); they have exceptionally high dielectric resistivities and strengths (i.e., ability to insulate very high voltages); they exhibit low dielectric loss at microwave frequencies; and some aerogels are electrically conductive and photoconductive. These properties are being exploited to provide the next generation of materials for energy storage, low power consumption, and ultra-fast electronics. We are working toward adapting these unusual materials for microelectronic applications, particularly, making thin aerogel films for dielectric substrates and for energy storage devices such as supercapacitors. Measurements are presented in this paper for the dielectric and electronic properties of aerogels, including the dielectric constant, loss factor, dielectric and electrical conductivity, volume resistivity, and dielectric strength. We also describe methods to form and characterize thin aerogel films which are being developed for numerous electronic applications. Finally, some of the electronic applications proposed for aerogels are presented. Commercialization of aerogels for electronics must await further feasibility, prototype development, and cost studies, but they are one of the key materials and are sure to have a major impact on future electronics.

  20. Axions - Motivation, limits and searches

    E-Print Network [OSTI]

    Georg G. Raffelt

    2006-11-09

    The axion solution of the strong CP problem provides a number of possible windows to physics beyond the standard model, notably in the form of searches for solar axions and for galactic axion dark matter, but in a broader context also inspires searches for axion-like particles in pure laboratory experiments. We briefly review the motivation for axions, astrophysical limits, their possible cosmological role, and current searches for axions and axion-like particles.

  1. Fundamental Limits to Cellular Sensing

    E-Print Network [OSTI]

    Pieter Rein ten Wolde; Nils B. Becker; Thomas E. Ouldridge; A. Mugler

    2015-05-25

    In recent years experiments have demonstrated that living cells can measure low chemical concentrations with high precision, and much progress has been made in understanding what sets the fundamental limit to the precision of chemical sensing. Chemical concentration measurements start with the binding of ligand molecules to receptor proteins, which is an inherently noisy process, especially at low concentrations. The signaling networks that transmit the information on the ligand concentration from the receptors into the cell have to filter this noise extrinsic to the cell as much as possible. These networks, however, are also stochastic in nature, which means that they will also add noise to the transmitted signal. In this review, we will first discuss how the diffusive transport and binding of ligand to the receptor sets the receptor correlation time, and then how downstream signaling pathways integrate the noise in the receptor state; we will discuss how the number of receptors, the receptor correlation time, and the effective integration time together set a fundamental limit on the precision of sensing. We then discuss how cells can remove the receptor noise while simultaneously suppressing the intrinsic noise in the signaling network. We describe why this mechanism of time integration requires three classes of resources---receptors and their integration time, readout molecules, energy---and how each resource class sets a fundamental sensing limit. We also briefly discuss the scheme of maximum-likelihood estimation, the role of receptor cooperativity, and how cellular copy protocols differ from canonical copy protocols typically considered in the computational literature, explaining why cellular sensing systems can never reach the Landauer limit on the optimal trade-off between accuracy and energetic cost.

  2. Access to Solar: Designing and Developing a

    E-Print Network [OSTI]

    and arrays that convert sunlight to energy; 2. Electronics that optimize the performance of the installation solar projects--from community organizers and advocates to utility managers and government officials of developing shared systems, from early planning to implementation. Available for download: http://www.nrel

  3. Managed Access by Controlled Sensing (MACS)

    SciTech Connect (OSTI)

    Curtiss, J.A.; Indusi, J.P.

    1994-08-01

    During chemical weapons challenge inspections, the CWC treaty allows ``alternate means`` of access to be proposed by the nation challenged. BNL`s Safeguards, Safety and Nonproliferation Division is funded by the Defense Nuclear Agency to develop a system to provide the challenge inspection team with a ``virtual presence`` within the facility while denying personal access. A general purpose configuration of a mobile station manned by site personnel and a base station manned by the challenge inspector, supported by a flexible communication system, will allow facility personnel to tailor the basic model to their site. Design of the MACS system is based on maximum use of commercial equipment that is available on the international market. Design requirements for the MACS system include methods of establishing geographical position, distance measuring equipment for use in verifying dimensions on floor plans, video and two-way audio links between the mobile unit and the base station, and portability and versatility of the equipment. The MACS platform will also support deployment of selected instrumentation which the site may offer to the challenge inspection team. This paper describes the design and construction of the prototype MACS system.

  4. Delivery, Management and Access Model for E-prints and Open Access Journals

    E-Print Network [OSTI]

    Southampton, University of

    selection criteria 26 5.2.2 Responsibility for long term preservation 27 #12;5.2.2.1 Open access journals 27 of Information Science, Loughborough University and Information & Library Services, Cranfield University] Authors University, Loughborough, Leicestershire, LE11 3TU, and Information & Library Services, Cranfield University

  5. Mandatory Access Control With discretionary access control (DAC) policies, authorization to perform op-

    E-Print Network [OSTI]

    Schneider, Fred B.

    security TS (Top Secret) exceptionally grave S (Secret) serious C (Confidential) some U (Unclassified) none;164 Chapter 8. Mandatory Access Control ing people to keep secret what they read. A person could see a document D only if (i) there was reason to trust that person would not divulge the secrets in D and (ii

  6. United Biofuels Private Limited | Open Energy Information

    Open Energy Info (EERE)

    United Biofuels Private Limited Jump to: navigation, search Name: United Biofuels Private Limited Place: Tamil Nadu, India Sector: Biomass Product: India-based owner and operator...

  7. Upper limit power for self-guided propagation of intense lasers in plasma

    SciTech Connect (OSTI)

    Wang Weimin; Hu Zhidan; Chen Liming; Li Yutong; Sheng Zhengming; Zhang Jie; Zeng Ming; Liu Yue; Kawata, Shigeo; Zheng Chunyang; Mori, Warren B.

    2012-10-29

    It is shown that there is an upper-limit laser power for self-focusing of a laser pulse in plasma in addition to the well-known lower-limit critical power set by the relativistic effect. This upper limit is caused by the transverse ponderomotive force of the laser, which tends to expel plasma electrons from the laser propagating area. Furthermore, there is a lower-limit plasma density for a given laser spot size, below which self-focusing does not occur for any laser power. Both the lower-limit density and the upper-limit power are derived theoretically and verified by two-dimensional and three-dimensional particle-in-cell simulations. It is also found that plasma channels may be unfavorable for stable guiding of lasers above the upper-limit power.

  8. Electron Microscope Facility

    ScienceCinema (OSTI)

    None

    2010-01-08

    Brookhaven Lab is home to one of only a few Scanning Transmision Electron Microscope (STEM) machines in the world and one of the few that can image single heavy atoms.

  9. Matter & Energy Electronics

    E-Print Network [OSTI]

    Suslick, Kenneth S.

    See also: Matter & Energy Detectors· Electronics· Technology· Medical Technology· Weapons Technology · Organic Chemistry· Reference Hydrogen chloride· Photography· Catalytic converter· Nanomedicine a series of tiny colored dots ­ each a different pigment ­ on an inert backing such as paper, plastic

  10. Toward pure electronic spectroscopy

    E-Print Network [OSTI]

    Petrovi?, Vladimir, 1978-

    2009-01-01

    In this thesis is summarized the progress toward completing our understanding of the Rydberg system of CaF and developing Pure Electronic Spectroscopy. The Rydberg system of CaF possesses a paradigmatic character due to ...

  11. VIA ELECTRONIC SUBMISSION

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

    39 MacDougal Street, Third Floor * New York, New York 10012 * (212) 992-8932 * www.policyintegrity.org March 21, 2011 VIA ELECTRONIC SUBMISSION Office of the General Counsel US...

  12. Method for electronically publishing a single organization's requirements in an electronic publication

    DOE Patents [OSTI]

    Cannella, Timothy Patrick (Yorktown, VA); Brown, Zopalla Deyar (Newport News, VA); Leverenz, Julia B. (Williamsburg, VA); Danforth, Teresa Marie (Lanexa, VA); Kyte, Shannan Dyan (Williamsburg, VA); Dempster, Karen Congiu (Yorktown, VA)

    2008-08-12

    A system for electronically publishing the requirements of a buyer that reduces the time and paperwork required by vendors to transact business with the buyer. The electronic publication includes one or more categorized lists of items that the buyer is seeking to procure. Each listed item includes the name of the item, a brief description of the item, the name of a contact person within the buyer's organization, and one or more dates relevant to the item. The name of the item is presented as a hyperlink that leads to a detailed description of the item and a list of electronically editable forms required by the buyer. The name of the contact person is also presented as a hyperlink that leads to contact information for the contact person. Within the electronic publication, vendors can register with the buyer regarding any listed item(s). Registered vendors receive automatic updates relating to items for which they registered. An administration section, accessible only to the buyer, allows the buyer to organize information and forms submitted by the vendors.

  13. Controlling the Electronic Properties of Nanodiamonds Via Surface Chemical Functionalization: A DFT Study

    E-Print Network [OSTI]

    Brown, Noam

    2013-01-01

    The electronic properties of chemically functionalized nanodiamonds are studied using density functional theory calculations. HOMO-LUMO gap and relative stabilities are calculated for different surface functionalization schemes and diamond nanocrystal morphologies. The effects of chemical decoration on the size and nature of the HOMO-LUMO gap of the various systems considered are discussed in detail. We conclude that surface chemical functionalization has the potential to become an accessible route for controlling the electronic properties of nanodiamonds.

  14. Free electron laser

    DOE Patents [OSTI]

    Villa, Francesco (Alameda, CA)

    1990-01-01

    A high gain, single-pass free electron laser formed of a high brilliance electron injector source, a linear accelerator which imparts high energy to the electron beam, and an undulator capable of extremely high magnetic fields, yet with a very short period. The electron injector source is the first stage (gap) of the linear accelerator or a radial line transformer driven by fast circular switch. The linear accelerator is formed of a plurality of accelerating gaps arranged in series. These gaps are energized in sequence by releasing a single pulse of energy which propagates simultaneously along a plurality of transmission lines, each of which feeds the gaps. The transmission lines are graduated in length so that pulse power is present at each gap as the accelerated electrons pass therethrough. The transmission lines for each gap are open circuited at their ends. The undualtor has a structure similar to the accelerator, except that the transmission lines for each gap are substantially short circuited at their ends, thus converting the electric field into magnetic field. A small amount of resistance is retained in order to generate a small electric field for replenishing the electron bunch with the energy lost as it traverses through the undulator structure.

  15. Cooling system for electronic components

    DOE Patents [OSTI]

    Anderl, William James; Colgan, Evan George; Gerken, James Dorance; Marroquin, Christopher Michael; Tian, Shurong

    2015-12-15

    Embodiments of the present invention provide for non interruptive fluid cooling of an electronic enclosure. One or more electronic component packages may be removable from a circuit card having a fluid flow system. When installed, the electronic component packages are coincident to and in a thermal relationship with the fluid flow system. If a particular electronic component package becomes non-functional, it may be removed from the electronic enclosure without affecting either the fluid flow system or other neighboring electronic component packages.

  16. Electron Beam Collimation for the Next Generation Light Source

    SciTech Connect (OSTI)

    Steier, C.; Emma, P.; Nishimura, H.; Papadopoulos, C.; Sannibale, F.

    2013-05-20

    The Next Generation Light Source will deliver high (MHz) repetition rate electron beams to an array of free electron lasers. Because of the significant average current in such a facility, effective beam collimation is extremely important to minimize radiation damage to undulators, prevent quenches of superconducting cavities, limit dose rates outside of the accelerator tunnel and prevent equipment damage. This paper describes the early conceptual design of a collimation system, as well as initial results of simulations to test its effectiveness.

  17. Study of Electron Transport and Amplification in Diamond

    SciTech Connect (OSTI)

    Muller, Erik M.; Ben-Zvi, Ilan

    2013-03-31

    As a successful completion of this award, my group has demonstrated world-leading electron gain from diamond for use in a diamond-amplified photocathode. Also, using high-resolution photoemission measurements we were able to uncover exciting new physics of the electron emission mechanisms from hydrogen terminated diamond. Our work, through the continued support of HEP, has resulted in a greater understanding of the diamond material science, including current limits, charge transport modeling, and spatial uniformity.

  18. Hudol Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy Resources JumpNewTexas: Energy Resources Jump to:Huber Heights,Hudol Limited

  19. Novacem Limited | Open Energy Information

    Open Energy Info (EERE)

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

  20. Hestiun Limited | Open Energy Information

    Open Energy Info (EERE)

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

  1. Plaxica Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, Blue MountainSchool DistrictPlaxica Limited Jump to:

  2. Dose Limits | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8,Department of2 Federal Register / Vol.DollarDorm RoomLimits

  3. Pseudopotential for the electron-electron interaction

    E-Print Network [OSTI]

    Lloyd-Williams, J. H.; Needs, R. J.; Conduit, G. J.

    2015-08-05

    -of-mass frame with wave vector k ? 0 and angular momentum quantum number `. The Hamiltonian in atomic units is ? 1r2 ddr (r2 d? dr ) + `(`+1) r2 ?+ V (r)? = k2?, and the repulsive Coulomb potential is V (r) = 1/r. The proposed pseudopotential is identical... to fermion anti- symmetry. We solve for the energy of two interacting electrons in the parabolic trap within the center-of-mass frame in which the interacting Hamiltonian for relative mo- tion is Hˆ = ? 1r2 ddr (r2 ddr ) + ?2r2/4 + `(`+ 1)/r2 + V (r), where V...

  4. Sifting Through a Trillion Electrons

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

    Sifting Through a Trillion Electrons Sifting Through a Trillion Electrons Berkeley researchers design strategies for extracting interesting data from massive scientific datasets...

  5. Measuring Speedy Electrons in Silicon

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

    Laser, Supercomputer Measure Speedy Electrons in Silicon Laser, Supercomputer Measure Speedy Electrons in Silicon Simulations at NERSC Help Illuminate Attosecond Laser Experiment...

  6. Electron Trapping by Molecular Vibration

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

    Electron Trapping by Molecular Vibration Print In photoelectron spectroscopy experiments performed at the ALS, a group of researchers has found that electronic transitions normally...

  7. Electron Trapping by Molecular Vibration

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

    Electron Trapping by Molecular Vibration Electron Trapping by Molecular Vibration Print Wednesday, 27 April 2005 00:00 In photoelectron spectroscopy experiments performed at the...

  8. 30th March 2007 A.Fabich, CERN AB-ATB 1 Status of the Experiment

    E-Print Network [OSTI]

    McDonald, Kirk

    badge and electronic dosimeter obligatory For a limited time period. AB/OP is informed about the access

  9. Remote direct memory access over datagrams

    DOE Patents [OSTI]

    Grant, Ryan Eric; Rashti, Mohammad Javad; Balaji, Pavan; Afsahi, Ahmad

    2014-12-02

    A communication stack for providing remote direct memory access (RDMA) over a datagram network is disclosed. The communication stack has a user level interface configured to accept datagram related input and communicate with an RDMA enabled network interface card (NIC) via an NIC driver. The communication stack also has an RDMA protocol layer configured to supply one or more data transfer primitives for the datagram related input of the user level. The communication stack further has a direct data placement (DDP) layer configured to transfer the datagram related input from a user storage to a transport layer based on the one or more data transfer primitives by way of a lower layer protocol (LLP) over the datagram network.

  10. Direct memory access transfer completion notification

    DOE Patents [OSTI]

    Chen, Dong (Croton on Hudson, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kumar, Sameer (White Plains, NY); Parker, Jeffrey J. (Rochester, MN); Steinmacher-Burow, Burkhard D. (Esslingen, DE); Vranas, Pavlos (Danville, CA)

    2010-07-27

    Methods, compute nodes, and computer program products are provided for direct memory access (`DMA`) transfer completion notification. Embodiments include determining, by an origin DMA engine on an origin compute node, whether a data descriptor for an application message to be sent to a target compute node is currently in an injection first-in-first-out (`FIFO`) buffer in dependence upon a sequence number previously associated with the data descriptor, the total number of descriptors currently in the injection FIFO buffer, and the current sequence number for the newest data descriptor stored in the injection FIFO buffer; and notifying a processor core on the origin DMA engine that the message has been sent if the data descriptor for the message is not currently in the injection FIFO buffer.

  11. Energy-limited escape revised

    E-Print Network [OSTI]

    Salz, M; Czesla, S; Schmitt, J H M M

    2015-01-01

    Gas planets in close proximity to their host stars experience photoevaporative mass loss. The energy-limited escape concept is generally used to derive estimates for the planetary mass-loss rates. Our photoionization hydrodynamics simulations of the thermospheres of hot gas planets show that the energy-limited escape concept is valid only for planets with a gravitational potential lower than $\\log_\\mathrm{10}\\left( -\\Phi_{\\mathrm{G}}\\right) < 13.11~$erg$\\,$g$^{-1}$ because in these planets the radiative energy input is efficiently used to drive the planetary wind. Massive and compact planets with $\\log_\\mathrm{10}\\left( -\\Phi_{\\mathrm{G}}\\right) \\gtrsim 13.6~$erg$\\,$g$^{-1}$ exhibit more tightly bound atmospheres in which the complete radiative energy input is re-emitted through hydrogen Ly$\\alpha$ and free-free emission. These planets therefore host hydrodynamically stable thermospheres. Between these two extremes the strength of the planetary winds rapidly declines as a result of a decreasing heating eff...

  12. PROCEEDINGS Open Access Unsupervised binning of environmental

    E-Print Network [OSTI]

    Chin, Francis Y.L.

    sequencing techniques, traditional research methods based on the isolation and cultivation of microorganisms on reference genomes of known microorganisms and phylogenetic marker genes. Due to the limited availability and alcohol brewing with yeast as well as the fatal pathogen of pulmonary tuber- culosis and cholera

  13. A Database for Fast Access to Particle-Gated Event Data

    E-Print Network [OSTI]

    A. Bürger

    2007-02-08

    In nuclear physics experiments involving in-flight fragmentation of ions, usually a large number of different nuclei is produced and various detection systems are employed to identify the species event by event, e.g. by measuring their specific energy loss and time-of-flight. For such cases -- not necessarily limited to nuclear physics -- where subsets of a large dataset can be identified using a small number of measured signals a software for fast access to varying subsets of such a dataset has been developed. The software has been used successfully in the analysis of a one neutron knock-out experiment at GANIL.

  14. Reversible Electron Beam Heating for Suppression of Microbunching Instabilities at Free-Electron Lasers

    SciTech Connect (OSTI)

    Behrens, Christopher; /DESY; Huang, Zhirong; Xiang, Dao; /SLAC

    2012-05-30

    The presence of microbunching instabilities due to the compression of high-brightness electron beams at existing and future x-ray free-electron lasers (FELs) results in restrictions on the attainable lasing performance and renders beam imaging with optical transition radiation impossible. The instability can be suppressed by introducing additional energy spread, i.e., heating the electron beam, as demonstrated by the successful operation of the laser heater system at the Linac Coherent Light Source. The increased energy spread is typically tolerable for self-amplified spontaneous emission FELs but limits the effectiveness of advanced FEL schemes such as seeding. In this paper, we present a reversible electron beam heating system based on two transverse deflecting radio-frequency structures (TDSs) upstream and downstream of a magnetic bunch compressor chicane. The additional energy spread is introduced in the first TDS, which suppresses the microbunching instability, and then is eliminated in the second TDS. We show the feasibility of the microbunching gain suppression based on calculations and simulations including the effects of coherent synchrotron radiation. Acceptable electron beam and radio-frequency jitter are identified, and inherent options for diagnostics and on-line monitoring of the electron beam's longitudinal phase space are discussed.

  15. Long-Term Surveillance and Maintenance Records: Maintaining Access to the Knowledge - 13122

    SciTech Connect (OSTI)

    Montgomery, John; Gueretta, Jeanie; McKinney, Ruth; Anglim, Cliff

    2013-07-01

    The U.S. Department of Energy (DOE) Office of Legacy Management (LM) is an integral part of DOE's strategy to ensure that legacy liabilities of former nuclear weapons production sites are properly managed following the completion of environmental cleanup activities. In the area of environmental legacy management, records management is crucial to the protection of health, environmental, and legal interests of the Department and the public. LM is responsible for maintaining long-term surveillance and maintenance (LTS and M) records in performance of its mission. Maintaining access to the knowledge contained in these record collections is one of LM's primary responsibilities. To fulfill this responsibility, LM established a consolidated records management facility, the LM Business Center (LMBC), to house physical media records and electronic records. A new electronic record keeping system (ERKS) was needed to replace an obsolete system while helping to ensure LM is able to meet ongoing responsibilities to maintain access to knowledge and control the life cycle management of records. (authors)

  16. Experimental Investigation of Electron-Acoustic Waves in Electron Plasmas

    E-Print Network [OSTI]

    California at San Diego, University of

    Experimental Investigation of Electron-Acoustic Waves in Electron Plasmas Andrey A. Kabantsev , F Electron-acoustic wave (EAW) solutions of the linearized electrostatic Vlasov equations have usually been USA 92093-0319 Dipt. di Fisica and INFM, Univ. della Calabria, 87036 Rende, Italy Abstract. Electron-acoustic

  17. Roadmap: Electronic Media Electronic Media Sports Production Bachelor of Science

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Electronic Media ­ Electronic Media Sports Production ­ Bachelor of Science [CI­2013 Page 1 of 4 | Last Updated: 23-May-12/LNHD This roadmap is a recommended semester-by-semester plan requirement #12;Roadmap: Electronic Media ­ Electronic Media Sports Production ­ Bachelor of Science [CI

  18. An electronic radiation of blackbody: Cosmic electron background

    E-Print Network [OSTI]

    Jian-Miin Liu

    2008-02-23

    The Universe owns the electronic radiation of blackbody at temperature 2.725 K, which we call the cosmic electron background. We calculate its radiation spectrum. The energy distribution of number density of electrons in the cosmic electron background becomes zero as energy goes to both zero and infinity. It has one maximum peak near the energy level of 10**(-23) J.

  19. Electronic Survey Methodology Page 1 Electronic Survey Methodology

    E-Print Network [OSTI]

    Nonnecke, Blair

    Electronic Survey Methodology Page 1 Electronic Survey Methodology: A Case Study in Reaching Hard, Maryland preece@umbc.edu 2002 © Andrews, Nonnecke and Preece #12;Electronic Survey Methodology Page 2 Conducting Research on the Internet: Electronic survey Design, Development and Implementation Guidelines

  20. The Access Almanac: Ending the Abuse of Disabled Parking Placards

    E-Print Network [OSTI]

    Shoup, Donald

    2011-01-01

    Ending the Abuse of Disabled Parking Placards DONALD SHOUP Aattention for repeatedly parking illegally in spaceshandicappedfraud.org. Making curb parking accessible to

  1. Automatic Learning of Block Storage Access Time Models

    E-Print Network [OSTI]

    Crume, Adam

    2015-01-01

    3 Storage devices 3.1 Scope ofedge-on . . . . . . . . Queueing in a storage device with noAUTOMATIC LEARNING OF BLOCK STORAGE ACCESS TIME MODELS A

  2. Proposed Open Access Requirement for International Electric Transmissi...

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

    Open Access Requirement for International Electric Transmission Facilities and Delegation to the Federal Energy Regulatory Commission: Federal Register Notice Volume 64, No. 143 -...

  3. T-701: Citrix Access Gateway Enterprise Edition Input Validation...

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

    ABSTRACT: Citrix Access Gateway Enterprise Edition Input Validation Flaw in Logon Portal Permits Cross-Site Scripting Attacks. reference LINKS: SecurityTracker Alert ID:...

  4. NBP RFI: Data Access Honeywell Responses To Request for Information...

    Energy Savers [EERE]

    Data Access Honeywell Responses To Request for Information (RFI) from the Department of Energy on Implementing the National Broadband Plan by Empowering Consumers and the Smart...

  5. V-106: Citrix Access Gateway Unspecified Security Bypass Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in Citrix Access Gateway, which can be exploited by malicious people to bypass certain security restrictions.

  6. Reducing rural poverty through increased access to energy services...

    Open Energy Info (EERE)

    Reducing rural poverty through increased access to energy services: a review of the multifunctional platform project in Mali Jump to: navigation, search Tool Summary LAUNCH TOOL...

  7. Power Africa's Beyond the Grid Increasing Access through Small...

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

    the U.S. Government is formally launching an innovative framework under President Obama's Power Africa initiative to increase energy access for underserved populations across...

  8. Accessing Low-Cost Capital Through Securitization (Poster)

    SciTech Connect (OSTI)

    Mendelsohn, M.

    2014-10-01

    Poster for Solar Power International conference presents information on NREL's effort to open capital markets through securitization via Solar Access to Public Capital (SAPC) working group's efforts.

  9. V-149: Microsoft Internet Explorer Object Access Bug Lets Remote...

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

    Microsoft Internet Explorer Object Access Bug Lets Remote Users Execute Arbitrary Code PLATFORM: Internet Explorer 8 ABSTRACT: A vulnerability was reported in Microsoft Internet...

  10. Idaho - Access Management: Standards and Procedures for Highway...

    Open Energy Info (EERE)

    - Access Management: Standards and Procedures for Highway Right-of-Way Encroachments Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory...

  11. Updated May 2012 MILITARY ACCESSIONS VITAL TO NATIONAL INTEREST (MAVNI)

    E-Print Network [OSTI]

    Arnold, Jonathan

    Updated May 2012 MILITARY ACCESSIONS VITAL TO NATIONAL INTEREST (MAVNI) RECRUITMENT PILOT are considered to be vital to the national interest. Those holding critical skills ­ physicians, nurses

  12. Analysis of electron capture process in charge pumping sequence using time domain measurements

    SciTech Connect (OSTI)

    Hori, Masahiro Watanabe, Tokinobu; Ono, Yukinori; Tsuchiya, Toshiaki

    2014-12-29

    A method for analyzing the electron capture process in the charge pumping (CP) sequence is proposed and demonstrated. The method monitors the electron current in the CP sequence in time domain. This time-domain measurements enable us to directly access the process of the electron capture to the interface defects, which are obscured in the conventional CP method. Using the time-domain measurements, the rise time dependence of the capture process is systematically investigated. We formulate the capture process based on the rate equation and derive an analytic form of the current due to the electron capture to the defects. Based on the formula, the experimental data are analyzed and the capture cross section is obtained. In addition, the time-domain data unveil that the electron capture process completes before the electron channel opens, or below the threshold voltage in a low frequency range of the pulse.

  13. Electron microscope phase enhancement

    DOE Patents [OSTI]

    Jin, Jian; Glaeser, Robert M.

    2010-06-15

    A microfabricated electron phase shift element is used for modifying the phase characteristics of an electron beam passing though its center aperture, while not affecting the more divergent portion of an incident beam to selectively provide a ninety-degree phase shift to the unscattered beam in the back focal plan of the objective lens, in order to realize Zernike-type, in-focus phase contrast in an electron microscope. One application of the element is to increase the contrast of an electron microscope for viewing weakly scattering samples while in focus. Typical weakly scattering samples include biological samples such as macromolecules, or perhaps cells. Preliminary experimental images demonstrate that these devices do apply a ninety degree phase shift as expected. Electrostatic calculations have been used to determine that fringing fields in the region of the scattered electron beams will cause a negligible phase shift as long as the ratio of electrode length to the transverse feature-size aperture is about 5:1. Calculations are underway to determine the feasibility of aspect smaller aspect ratios of about 3:1 and about 2:1.

  14. Laser cooling of electron beams at linear colliders

    E-Print Network [OSTI]

    Valery Telnov

    2000-01-12

    A method of electron beam cooling is considered which can be used for linear colliders. The electron beam is cooled during collision with focused powerful laser pulse. The ultimate transverse emittances are much below those achievable by other methods. This method is especially useful for high energy gamma-gamma colliders. In this paper we review and analyse limitations in this method, also discuss a new method of obtaining very high laser powers required for the laser cooling, radiation conditions and finaly present a possible scheme for the laser cooling of electron beams.

  15. A novel electron gun with an independently addressable cathode array.

    SciTech Connect (OSTI)

    Rudys, Joseph Matthew; Reed, Kim Warren; Peña, Gary Edward; Schneider, Larry X.

    2006-08-01

    The design of a novel electron gun with an array of independently addressable cathode elements is presented. Issues relating to operation in a 6.5 Tesla axial magnetic field are discussed. Simulations with the TriComp [1] electromagnetic field code that were used to determine the space charge limited tube characteristic and to model focusing of the electron beam in the magnetic field are reviewed. Foil heating and stress calculations are discussed. The results of CYLTRAN [2] simulations yielding the energy spectrum of the electron beam and the current transmitted through the foil window are presented.

  16. Transport Experiments on 2D Correlated Electron Physics in Semiconductors

    SciTech Connect (OSTI)

    Tsui, Daniel

    2014-03-24

    This research project was designed to investigate experimentally the transport properties of the 2D electrons in Si and GaAs, two prototype semiconductors, in several new physical regimes that were previously inaccessible to experiments. The research focused on the strongly correlated electron physics in the dilute density limit, where the electron potential energy to kinetic energy ratio rs>>1, and on the fractional quantum Hall effect related physics in nuclear demagnetization refrigerator temperature range on samples with new levels of purity and controlled random disorder.

  17. ERL BASED ELECTRON-ION COLLIDER ERHIC.

    SciTech Connect (OSTI)

    LITVINENKO,V.N.; BEN-ZVI,I.; ANDERSON,D.; ET AL.

    2005-05-16

    In this paper we describe eRHIC design based on the RHIC hadron rings and 10-to-20 GeV energy recovery electron linac. RHIC requires a very large tunability range for c.m. energies while maintaining very high luminosity up to 10{sup 34} cm{sup -2} s{sup -1} per nucleon. The designs of this future polarized electron-hadron collider, eRHIC, based on a high current super-conducting energy-recovery linac (ERL) with energy of electrons up to 20 GeV, have a number of specific requirements on the ERL optics. Two of the most attractive features of this scheme are full spin transparency of the ERL at all operational energies and the capability to support up to four interaction points. We present two main layouts of the eRHIC, the expected beam and luminosity parameter, and discuss the potential limitation of its performance. Two of the most attractive features of this scheme are full spin transparency of the ERL at all operational energies and the capability to support up to four interaction points. We present two main layouts of the eRHIC, the expected beam and luminosity parameter, and discuss the potential limitation of its performance.

  18. Tau-neutrino mass limit

    E-Print Network [OSTI]

    Baringer, Philip S.

    1987-05-01

    was supported in part by the U.S. Depart- ment of Energy under Contracts Nos. W-31-109-Eng-38, DE-AC02-76ER011 12, DE-AC03-76S F000998, DE- AC02-76ER01428, and DE-AC02-84ER40125. This ex- periment was made possible by the support provided by the SLAC PEP staff... articles is followed, and page proofs are sent to authors. Tau-neutrino mass limit S. Abachi, P. Baringer, B. G. Bylsma, R. De Bonte, D. Koltick, F. J. Loeffler, E. H. Low, R. L. McIlwain, D. H. Miller, C. R. Ng, L. K. Rangan, and E. I. Shibata Purdue...

  19. Physics of the Shannon Limits

    E-Print Network [OSTI]

    Merhav, Neri

    2009-01-01

    We provide a simple physical interpretation, in the context of the second law of thermodynamics, to the information inequality (a.k.a. the Gibbs' inequality, which is also equivalent to the log-sum inequality), asserting that the relative entropy between two probability distributions cannot be negative. Since this inequality stands at the basis of the data processing theorem (DPT), and the DPT in turn is at the heart of most, if not all, proofs of converse theorems in Shannon theory, it is observed that conceptually, the roots of fundamental limits of Information Theory can actually be attributed to the laws of physics, in particular, to the second law of thermodynamics, and at least indirectly, also to the law of energy conservation. By the same token, in the other direction: one can view the second law as stemming from information-theoretic principles.

  20. The limits of filopodium stability

    E-Print Network [OSTI]

    Sander Pronk; Phillip L. Geissler; Daniel A. Fletcher

    2008-03-03

    Filopodia are long, finger-like membrane tubes supported by cytoskeletal filaments. Their shape is determined by the stiffness of the actin filament bundles found inside them and by the interplay between the surface tension and bending rigidity of the membrane. Although one might expect the Euler buckling instability to limit the length of filopodia, we show through simple energetic considerations that this is in general not the case. By further analyzing the statics of filaments inside membrane tubes, and through computer simulations that capture membrane and filament fluctuations, we show under which conditions filopodia of arbitrary lengths are stable. We discuss several in vitro experiments where this kind of stability has already been observed. Furthermore, we predict that the filaments in long, stable filopodia adopt a helical shape.

  1. Limited-life cartridge primers

    DOE Patents [OSTI]

    Makowiecki, Daniel M.; Rosen, Robert S.

    2005-04-19

    A cartridge primer which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML's would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers.

  2. Limited-life cartridge primers

    DOE Patents [OSTI]

    Makowiecki, D.M.; Rosen, R.S.

    1998-06-30

    A cartridge primer is described which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML`s would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers. 10 figs.

  3. Limited-life cartridge primers

    DOE Patents [OSTI]

    Makowiecki, Daniel M. (Livermore, CA); Rosen, Robert S. (San Ramon, CA)

    1998-01-01

    A cartridge primer which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML's would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers.

  4. Radiation from electrons in graphene in strong electric field

    SciTech Connect (OSTI)

    Yokomizo, N.

    2014-12-15

    We study the interaction of electrons in graphene with the quantized electromagnetic field in the presence of an applied uniform electric field using the Dirac model of graphene. Electronic states are represented by exact solutions of the Dirac equation in the electric background, and amplitudes of first-order Feynman diagrams describing the interaction with the photon field are calculated for massive Dirac particles in both valleys. Photon emission probabilities from a single electron and from a many-electron system at the charge neutrality point are derived, including the angular and frequency dependence, and several limiting cases are analyzed. The pattern of photon emission at the Dirac point in a strong field is determined by an interplay between the nonperturbative creation of electron–hole pairs and spontaneous emission, allowing for the possibility of observing the Schwinger effect in measurements of the radiation emitted by pristine graphene under DC voltage.

  5. Hydrodynamic model for electron-hole plasma in graphene

    E-Print Network [OSTI]

    D. Svintsov; V. Vyurkov; S. Yurchenko; T. Otsuji; V. Ryzhii

    2012-01-03

    We propose a hydrodynamic model describing steady-state and dynamic electron and hole transport properties of graphene structures which accounts for the features of the electron and hole spectra. It is intended for electron-hole plasma in graphene characterized by high rate of intercarrier scattering compared to external scattering (on phonons and impurities), i.e., for intrinsic or optically pumped (bipolar plasma), and gated graphene (virtually monopolar plasma). We demonstrate that the effect of strong interaction of electrons and holes on their transport can be treated as a viscous friction between the electron and hole components. We apply the developed model for the calculations of the graphene dc conductivity, in particular, the effect of mutual drag of electrons and holes is described. The spectra and damping of collective excitations in graphene in the bipolar and monopolar limits are found. It is shown that at high gate voltages and, hence, at high electron and low hole densities (or vice-versa), the excitations are associated with the self-consistent electric field and the hydrodynamic pressure (plasma waves). In intrinsic and optically pumped graphene, the waves constitute quasineutral perturbations of the electron and hole densities (electron-hole sound waves) with the velocity being dependent only on the fundamental graphene constants.

  6. Foil Electron Multiplier

    DOE Patents [OSTI]

    Funsten, Herbert O. (Los Alamos, NM); Baldonado, Juan R. (Los Alamos, NM); Dors, Eric E. (Los Alamos, NM); Harper, Ronnie W. (Los Alamos, NM); Skoug, Ruth M. (Los Alamos, NM)

    2006-03-28

    An apparatus for electron multiplication by transmission that is designed with at least one foil having a front side for receiving incident particles and a back side for transmitting secondary electrons that are produced from the incident particles transiting through the foil. The foil thickness enables the incident particles to travel through the foil and continue on to an anode or to a next foil in series with the first foil. The foil, or foils, and anode are contained within a supporting structure that is attached within an evacuated enclosure. An electrical power supply is connected to the foil, or foils, and the anode to provide an electrical field gradient effective to accelerate negatively charged incident particles and the generated secondary electrons through the foil, or foils, to the anode for collection.

  7. Wheelchair access to this building is not currently recommended without assistance and is limited to the ground floor.

    E-Print Network [OSTI]

    Edinburgh, University of

    . Lift. Page 10. Stairs. Page 10. Toilets. Page 11. Room Directory. Page 12. Floor Plans, Page 13 at Pollock Halls. The nearest railway line is at Waverley Station in the city centre. The nearest bus stops

  8. U-211: EMC Celerra/VNX/VNXe Access Control Bug Lets Remote Authenticated Users Access Files/Directories

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in EMC Celerra/VNX/VNXe. A remote authenticated user can access files and directories on the target file system.

  9. Homogenization limit for a multiband effective mass model in heterostructures

    SciTech Connect (OSTI)

    Morandi, O.

    2014-06-15

    We study the homogenization limit of a multiband model that describes the quantum mechanical motion of an electron in a quasi-periodic crystal. In this approach, the distance among the atoms that constitute the material (lattice parameter) is considered a small quantity. Our model include the description of materials with variable chemical composition, intergrowth compounds, and heterostructures. We derive the effective multiband evolution system in the framework of the kp approach. We study the well posedness of the mathematical problem. We compare the effective mass model with the standard kp models for uniform and non-uniforms crystals. We show that in the limit of vanishing lattice parameter, the particle density obtained by the effective mass model, converges to the exact probability density of the particle.

  10. Adapting Your Home for More Accessible Living 

    E-Print Network [OSTI]

    Harris, Janie

    2007-04-27

    is to enhance safety, and there are many ways to do this. Lowering the temperature setting on the water heater lessens the danger of scalding. Installing temperature-limiting mixer valves on exist- ing tubs and showers accomplishes the same purpose. Visual... not be able to distinguish or sort competing signals. They may also have trouble remembering or understanding information and may process it slowly. They may be disoriented as to time and space. People with diminished cognition may not comprehend danger from...

  11. Energy Spread Reduction of Electron Beams Produced via Laser Wake

    SciTech Connect (OSTI)

    Pollock, B

    2012-03-19

    Laser wakefield acceleration of electrons holds great promise for producing ultra-compact stages of GeV scale, high quality electron beams for applications such as x-ray free electron lasers and high energy colliders. Ultra-high intensity laser pulses can be self-guided by relativistic plasma waves over tens of vacuum diffraction lengths, to give >1 GeV energy in cm-scale low density plasma using ionization-induced injection to inject charge into the wake at low densities. This thesis describes a series of experiments which investigates the physics of LWFA in the self-guided blowout regime. Beginning with high density gas jet experiments the scaling of the LWFA-produced electron beam energy with plasma electron density is found to be in excellent agreement with both phenomenological theory and with 3-D PIC simulations. It is also determined that self-trapping of background electrons into the wake exhibits a threshold as a function of the electron density, and at the densities required to produce electron beams with energies exceeding 1 GeV a different mechanism is required to trap charge into low density wakes. By introducing small concentrations of high-Z gas to the nominal He background the ionization-induced injection mechanism is enabled. Electron trapping is observed at densities as low as 1.3 x 10{sup 18} cm{sup -3} in a gas cell target, and 1.45 GeV electrons are demonstrated for the first time from LWFA. This is currently the highest electron energy ever produced from LWFA. The ionization-induced trapping mechanism is also shown to generate quasi-continuous electron beam energies, which is undesirable for accelerator applications. By limiting the region over which ionization-induced trapping occurs, the energy spread of the electron beams can be controlled. The development of a novel two-stage gas cell target provides the capability to tailor the gas composition in the longitudinal direction, and confine the trapping process to occur only in a limited, defined region. Using this technique a 460 MeV electron beam was produced with an energy spread of 5%. This technique is directly scalable to multi-GeV electron beam generation with sub-percent energy spreads.

  12. Diamondoid monolayers as electron emitters

    DOE Patents [OSTI]

    Yang, Wanli; Fabbri, Jason D.; Melosh, Nicholas A.; Hussain, Zahid; Shen, Zhi-Xun

    2013-10-29

    Provided are electron emitters based upon diamondoid monolayers, preferably self-assembled higher diamondoid monolayers. High intensity electron emission has been demonstrated employing such diamondoid monolayers, particularly when the monolayers are comprised of higher diamondoids. The application of such diamondoid monolayers can alter the band structure of substrates, as well as emit monochromatic electrons, and the high intensity electron emissions can also greatly improve the efficiency of field-effect electron emitters as applied to industrial and commercial applications.

  13. Diamondoid monolayers as electron emitters

    DOE Patents [OSTI]

    Yang, Wanli (El Cerrito, CA); Fabbri, Jason D. (San Francisco, CA); Melosh, Nicholas A. (Menlo Park, CA); Hussain, Zahid (Orinda, CA); Shen, Zhi-Xun (Stanford, CA)

    2012-04-10

    Provided are electron emitters based upon diamondoid monolayers, preferably self-assembled higher diamondoid monolayers. High intensity electron emission has been demonstrated employing such diamondoid monolayers, particularly when the monolayers are comprised of higher diamondoids. The application of such diamondoid monolayers can alter the band structure of substrates, as well as emit monochromatic electrons, and the high intensity electron emissions can also greatly improve the efficiency of field-effect electron emitters as applied to industrial and commercial applications.

  14. Production of a monoenergetic electron bunch in a self-injected laser-wakefield accelerator C.-L. Chang,1

    E-Print Network [OSTI]

    electrons. The tomographic method adds a crucial dimension to the whole array of existing diagnostics for laser beams, plasma waves, and electron beams. With this method the details of the underlying physical limitations on applications. Recently pro- duction of well-collimated electron beam with up to GeV energy

  15. Absence of a steady-state space charge limited regime for a sheath in a weakly collisional plasma bounded by

    E-Print Network [OSTI]

    Absence of a steady-state space charge limited regime for a sheath in a weakly collisional plasma average kinetic energy in the direction normal to the walls. Electrons are stratified into several groups leads to absence of a steady-state space charge limited regime for a sheath even in presence of a high

  16. Iterative Water-filling for Gaussian Vector Multiple Access Channels

    E-Print Network [OSTI]

    Li, Tiffany Jing

    Iterative Water-filling for Gaussian Vector Multiple Access Channels W. Yu, W. Rhee, S. Boyd, and J. Cioffi Zhenlei Shen Lehigh University March 29, 2005 Zhenlei Shen (Lehigh) Iterative Water-filling for Gaussian Vector Multiple Access ChannelsMarch 29, 2005 1 / 13 #12;1 Quick Review 2 Iterative Water

  17. Announced Dynamic Access Probability protocol for next generation wireless networks

    E-Print Network [OSTI]

    Levy, Hanoch

    Announced Dynamic Access Probability protocol for next generation wireless networks Z. NAOR #3; H probability. Keywords: wireless networks, multiple access, MAC #3; naorz@post.tau.ac.il y hanoch@cs.tau.ac.il 1 #12; 1 Introduction Wireless networks are rapidly expanding. Future satellite-based networks

  18. Negotiating Multichannel Sensing and Access In Cognitive Radio Wireless Networks

    E-Print Network [OSTI]

    Islam, M. Saif

    Negotiating Multichannel Sensing and Access In Cognitive Radio Wireless Networks Hua Liu§, Bhaskar the coordination among secondary users on channel sensing strategy in cognitive wireless networks. In this problem and potentially access in a cognitive radio network? If users may have a potentially different valuation of each

  19. Towards an Accessible Web through Semantic Web Standards

    E-Print Network [OSTI]

    Watt, Stephen M.

    1 Towards an Accessible Web through Semantic Web Standards Clare M. So, Mark Perry and Stephen M Abstract-- Making information on the Web accessible to all people, including to those having special needs than actual semantic content that is rendered by alternative technologies. To make the Web more

  20. A Framework for Flexible Access Control in Digital Library Systems

    E-Print Network [OSTI]

    Ray, Indrajit

    A Framework for Flexible Access Control in Digital Library Systems Indrajit Ray and Sudip. Traditional access control models are often found to be inadequate for digital libraries. This is because the user population for digital libraries is very dynamic and not completely known in advance. In addition

  1. The Energy Harvesting Multiple Access Channel with Energy Storage Losses

    E-Print Network [OSTI]

    Yener, Aylin

    The Energy Harvesting Multiple Access Channel with Energy Storage Losses Kaya Tutuncuoglu and Aylin considers a Gaussian multiple access channel with two energy harvesting transmitters with lossy energy storage. The power allocation policy maximizing the average weighted sum rate given the energy harvesting

  2. OSU-Tulsa Helmerich Research Center Card Access Request Form

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    OSU-Tulsa Helmerich Research Center Card Access Request Form *Please submit form to the University that it will NOT be loaned or transferred to any person. If this access card is lost or stolen, OSU-Tulsa University Police: ________________________ OSU-Tulsa University Police 2/4/13 University Police use only Date: _____________ Processed by

  3. Test Access Mechanism Optimization, Test Scheduling, and Tester Data Volume

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Test Access Mechanism Optimization, Test Scheduling, and Tester Data Volume Reduction for System Marinissen, Senior Member, IEEE Abstract--We describe an integrated framework for system-on-chip (SOC) test automation. Our framework is based on a new test access mechanism (TAM) architecture consisting of flexible

  4. Towards an Accessible Web through Semantic Web Standards

    E-Print Network [OSTI]

    Perry, Mark

    Towards an Accessible Web through Semantic Web Standards Clare M. So, Mark Perry and Stephen M Abstract-- Making information on the Web accessible to all people, including to those having special needs than actual semantic content that is rendered by alternative technologies. To make the Web more

  5. ISSN:2155-6199 The International Open Access

    E-Print Network [OSTI]

    Brown, Sally

    ISSN:2155-6199 The International Open Access Journal of Bioremediation & Biodegradation Special, S7 http://dx.doi.org/10.4172/2155-6199.S7-001 Research Article Open Access Bioremediation.S. Environmental Protection Agency sampling survey of 945 groundwater-based drinking water supplies [3

  6. Utility-Optimal Random Access for Wireless Multimedia Networks

    E-Print Network [OSTI]

    Wong, Vincent

    Utility-Optimal Random Access for Wireless Multimedia Networks Man Hon Cheung, Hamed Mohsenian-of-service (QoS) requirements, we model their utilities with concave, step, and quasi-concave functions. We to the users for random access, based on solving a non-convex network utility maximization problem. We propose

  7. Medium Access Control with Physical Layer Assisted Loss Differentiation

    E-Print Network [OSTI]

    Xu, Zhengyuan "Daniel"

    (BEB) algorithm used in IEEE 802.11 DCF suffers from the unfairness problem and yields low throughput (BEB) algorithm. DCF uses two techniques: the default basic access mechanism and the request/CTS access scheme is widely used. Our work mainly focuses on the RTS/CTS mechanism in DCF. However, the BEB

  8. JLab Registration/International Services - Identification/Access...

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

    Access Badge Badge Office hours: Monday - Thursday: 9:00am - 11:00am 2:00pm - 4:00pm Friday: 9:00am - 11:00am 2:00pm - 3:00pm CHANGE IN ACCEPTABLE ID DOCUMENTS FOR JLAB ACCESS The...

  9. European Geosciences Union Open Access Publications of the

    E-Print Network [OSTI]

    Demouchy, Sylvie

    European Geosciences Union Open Access Publications of the European Geosciences Union (EGU Director 1988-2007 #12;European Geosciences Union Mission Statement for Publications "Dedicated to the pursuit of excellence and free and universal accessibility of scientific publications in all areas

  10. A Smart Energy System with Distributed Access Control

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    A Smart Energy System with Distributed Access Control Cheng-Ting Lee, Cheng-Hsun Yang, Chun.chou}@gmail.com Abstract--This paper presents a new smart energy (SE) system with distributed access control. Many other SE with minimal power, latency, and cost overhead. I. INTRODUCTION Smart energy (SE) systems have been one

  11. Statler College Research Data Center Access and Usage Policy

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Statler College Research Data Center Access and Usage Policy Objective Access to the Statler College Research Data Center (RDC) will be restricted to protect Statler computer and server operations they are in the data center. The RDC is monitored by cameras at all times and all activities in the data center shall

  12. Cooperative Decentralized Resource Allocation in Heterogeneous Wireless Access Medium

    E-Print Network [OSTI]

    Zhuang, Weihua

    1 Cooperative Decentralized Resource Allocation in Heterogeneous Wireless Access Medium Muhammad--In this paper, radio resource allocation in a hetero- geneous wireless access medium is investigated. Mobile the performance tradeoffs of the proposed algorithm. Index Terms--Heterogeneous wireless networks, resource allo

  13. Java Libraries for Accessing the Princeton Wordnet: Comparison and Evaluation

    E-Print Network [OSTI]

    direct access to the Princeton Wordnet data, so as to help Java developers find the library 1 See Table 6- cess the information in the original Prince- ton Wordnet databases. From this compari- son emerges-coverage, easiest-to-use library available. A Java developer seeking to access the Prince- ton Wordnet is faced

  14. Structure for common access and support of fuel cell stacks

    DOE Patents [OSTI]

    Walsh, Michael M. (Fairfield, CT)

    2000-01-01

    A structure provides common support and access to multiple fuel cells externally mounted thereto. The structure has openings leading to passages defined therein for providing the access. Various other fuel cell power system components are connected at the openings, such as reactant and coolant sources.

  15. Ontology-Based Data Access: From Theory to Practice

    E-Print Network [OSTI]

    Calvanese, Diego

    Ontology-Based Data Access: From Theory to Practice Diego Calvanese KRDB Research Centre-DBMS architecture: Data Source Application Data Source Data Source Application Application Ideal architecture based on a DBMS: Application DBMS Application Application Diego Calvanese (FUB) Ontology-Based Data Access: From

  16. PICTURE NAMING AND LEXICAL ACCESS IN ITALIAN CHILDREN AND ADULTS

    E-Print Network [OSTI]

    PICTURE NAMING AND LEXICAL ACCESS IN ITALIAN CHILDREN AND ADULTS Simonetta D'Amico University, 00185 Roma (damicosi@tin.it). #12;2 PICTURE NAMING AND LEXICAL ACCESS IN ITALIAN CHILDREN AND ADULTS) and 50 Italian-speaking adults in a timed picture-naming task, with 250 pictures (simple line drawings

  17. Access Control Policy Misconfiguration Detection in Online Social Yousra Javed

    E-Print Network [OSTI]

    Shehab, Mohamed

    and actual privacy settings causes access control misconfigurations, raising the risk of unintentional we scan the Facebook user's access control policies. We implemented a prototype Facebook ap show that the users' intended policies were significantly different than their actual policies. Our

  18. UNBC LIBRARY CARD AND BORROWER ACCESS APPLICATION FORM

    E-Print Network [OSTI]

    Northern British Columbia, University of

    UNBC LIBRARY CARD AND BORROWER ACCESS APPLICATION FORM For Faculty Authorized Users UNBC FACULTY: 20020_________________ Please issue a Faculty Authorized Library card to the following person so that s/he may borrow Library materials and access services in my name for my UNBC academic use. Please extend

  19. Towards Universal Accessibility of ETDs: Building the NDLTD Union Archive

    E-Print Network [OSTI]

    Suleman, Hussein

    Towards Universal Accessibility of ETDs: Building the NDLTD Union Archive Hussein Suleman to newcomers the existence of a collection of accessible ETDs. While many current members do indeed have such collections at the level of institutions or consortia, there is no single mechanism to aggregate all ETDs

  20. Regulating Wireless Access Pricing Kwanfong Leung and Jianwei Huang

    E-Print Network [OSTI]

    Huang, Jianwei

    user prices change with network's market shares and bandwidth costs. When such direct control change with the network costs and market shares. · Social optimal access pricing: We showRegulating Wireless Access Pricing Kwanfong Leung and Jianwei Huang Department of Information

  1. Electron Neutrinos at T2K

    E-Print Network [OSTI]

    Melissa George

    2010-06-07

    Tokai-to-Kamioka T2K is a long baseline neutrino oscillation experiment, looking for sub-dominant muon neutrino to electron neutrino oscillations. One of the primary aims of the T2K experiment is to narrow down the current limit on the value of theta13 (which if this value large enough, suggests CP violation in the neutrino sector) and to find whether theta23 is maximal, which is crucial for constraining neutrino mass models. T2K produces a high power neutrino beam at the J-PARC facility on the east coast of Japan, and this beam is then characterised by the near detector ND280 280 m from the start of the beam, the far detector (Super-Kamiokande), a 50 kton water Cherenkov detector, then detects the beam at the oscillation maximum of 295 km on Japan's west coast. T2K will be the first experiment to really study the electron neutrino appearance measurement - whose result will be sensitive to theta13 arguably the main physics goal of T2K. The ND280 detector is imperative to this measurement and will be used to understand the electron neutrino appearance background. The status of the T2K experiment and the predicted performance for the electron neutrino appearance measurement is presented here.

  2. Electron holography of devices with epitaxial layers

    SciTech Connect (OSTI)

    Gribelyuk, M. A. Ontalus, V.; Baumann, F. H.; Zhu, Z.; Holt, J. R.

    2014-11-07

    Applicability of electron holography to deep submicron Si devices with epitaxial layers is limited due to lack of the mean inner potential data and effects of the sample tilt. The mean inner potential V{sub 0}?=?12.75?V of the intrinsic epitaxial SiGe was measured by electron holography in devices with Ge content C{sub Ge}?=?18%. Nanobeam electron diffraction analysis performed on the same device structure showed that SiGe is strain-free in [220] direction. Our results showed good correlation with simulations of the mean inner potential of the strain-free SiGe using density function theory. A new method is proposed in this paper to correct electron holography data for the overlap of potentials of Si and the epitaxial layer, which is caused by the sample tilt. The method was applied to the analysis of the dopant diffusion in p-Field-effect Transistor devices with the identical gate length L?=?30?nm, which had alternative SiGe geometry in the source and drain regions and was subjected to different thermal processing. Results have helped to understand electrical data acquired from the same devices in terms of dopant diffusion.

  3. Electron-Electron Bremsstrahlung Emission and the Inference of Electron Flux Spectra in Solar Flares

    E-Print Network [OSTI]

    Eduard P. Kontar; A. Gordon Emslie; Anna Maria Massone; Michele Piana; John C. Brown; Marco Prato

    2007-07-28

    Although both electron-ion and electron-electron bremsstrahlung contribute to the hard X-ray emission from solar flares, the latter is normally ignored. Such an omission is not justified at electron (and photon) energies above $\\sim 300$ keV, and inclusion of the additional electron-electron bremsstrahlung in general makes the electron spectrum required to produce a given hard X-ray spectrum steeper at high energies. Unlike electron-ion bremsstrahlung, electron-electron bremsstrahlung cannot produce photons of all energies up to the maximum electron energy involved. The maximum possible photon energy depends on the angle between the direction of the emitting electron and the emitted photon, and this suggests a diagnostic for an upper cutoff energy and/or for the degree of beaming of the accelerated electrons. We analyze the large event of January 17, 2005 observed by RHESSI and show that the upward break around 400 keV in the observed hard X-ray spectrum is naturally accounted for by the inclusion of electron-electron bremsstrahlung. Indeed, the mean source electron spectrum recovered through a regularized inversion of the hard X-ray spectrum, using a cross-section that includes both electron-ion and electron-electron terms, has a relatively constant spectral index $\\delta$ over the range from electron kinetic energy $E = 200$ keV to $E = 1$ MeV. However, the level of detail discernible in the recovered electron spectrum is not sufficient to determine whether or not any upper cutoff energy exists.

  4. Energy Spectrum of Cosmic-Ray Electrons at TeV Energies

    SciTech Connect (OSTI)

    Aharonian, F.; Akhperjanian, A. G.; Sahakian, V.; Barres de Almeida, U.; Chadwick, P. M.; Cheesebrough, A.; Dickinson, H. J.; Hadjichristidis, C.; Keogh, D.; McComb, T. J. L.; Nolan, S. J.; Orford, K. J.; Osborne, J. L.; Rayner, S. M.; Rulten, C. B.; Spangler, D.; Ward, M.; Bazer-Bachi, A. R.; Borrel, V.; Olive, J-F.

    2008-12-31

    The very large collection area of ground-based {gamma}-ray telescopes gives them a substantial advantage over balloon or satellite based instruments in the detection of very-high-energy (>600 GeV) cosmic-ray electrons. Here we present the electron spectrum derived from data taken with the High Energy Stereoscopic System (H.E.S.S.) of imaging atmospheric Cherenkov telescopes. In this measurement, the first of this type, we are able to extend the measurement of the electron spectrum beyond the range accessible to direct measurements. We find evidence for a substantial steepening in the energy spectrum above 600 GeV compared to lower energies.

  5. Linkping University Electronic Press Electronic Publication of a Thesis with LiU Electronic Press

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Linköping University Electronic Press Electronic Publication of a Thesis with LiU Electronic Press with LiU E-Press. In individual cases where there are complications because of e.g. copyright on the world wide web by Linköping University Electronic Press (www.ep.liu.se). In so doing, I certify

  6. Investigation of physical processes limiting plasma density in H-mode on DIII-D

    SciTech Connect (OSTI)

    Maingi, R.; Mahdavi, M.A.; Jernigan, T.C.

    1996-12-01

    A series of experiments was conducted on the DIII-D tokamak to investigate the physical processes which limit density in high confinement mode (H-mode) discharges. The typical H-mode to low confinement mode (L-mode) transition limit at high density near the empirical Greenwald density limit was avoided by divertor pumping, which reduced divertor neutral pressure and prevented formation of a high density, intense radiation zone (MARFE) near the X-point. It was determined that the density decay time after pellet injection was independent of density relative to the Greenwald limit and increased non-linearly with the plasma current. Magnetohydrodynamic (MHD) activity in pellet-fueled plasmas was observed at all power levels, and often caused unacceptable confinement degradation, except when the neutral beam injected (NBI) power was {le} 3 MW. Formation of MARFEs on closed field lines was avoided with low safety factor (q) operation but was observed at high q, qualitatively consistent with theory. By using pellet fueling and optimizing discharge parameters to avoid each of these limits, an operational space was accessed in which density {approximately} 1.5 {times} Greenwald limit was achieved for 600 ms, and good H-mode confinement was maintained for 300 ms of the density flattop. More significantly, the density was successfully increased to the limit where a central radiative collapse was observed, the most fundamental density limit in tokamaks.

  7. Linkping University Electronic Press

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Linköping University Electronic Press Strategic Plan 2007-2009 January, 2007 #12;Executive SummaryU E-Press for 2007 to 2009. LiU E-Press currently has a collection of about 350 Ph.D. theses, 120 activities for LiU E-Press between 2007 and 2009: 2007 · Re-design of E-Press' website; · Application

  8. Linkping University Electronic Press

    E-Print Network [OSTI]

    Zhao, Yuxiao

    Linköping University Electronic Press Activity Summary, 2007 January, 2008 1 #12;1. Organization In March of 2007, Erik Sandewall, E-Press' director, resigned in order to take up a position at the Royal solution was found as part of a larger restructuring of LiU E-Press. As of September 1st , the Board

  9. MEIC electron cooling program

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

    Derbenev, Yaroslav S.; Zhang, Yuhong

    2014-12-01

    Cooling of proton and ion beams is essential for achieving high luminosities (up to above 1034 cm-2s-1) for MEIC, a Medium energy Electron-Ion Collider envisioned at JLab [1] for advanced nuclear science research. In the present conceptual design, we utilize the conventional election cooling method and adopted a multi-staged cooling scheme for reduction of and maintaining low beam emittances [2,3,4]. Two electron cooling facilities are required to support the scheme: one is a low energy (up to 2 MeV) DC cooler installed in the MEIC ion pre-booster (with the proton kinetic energy up to 3 GeV); the other is amore »high electron energy (up to 55 MeV) cooler in the collider ring (with the proton kinetic energy from 25 to 100 GeV). The high energy cooler, which is based on the ERL technology and a circulator ring, utilizes a bunched electron beam to cool bunched proton or ion beams. To complete the MEIC cooling concept and a technical design of the ERL cooler as well as to develop supporting technologies, an R&D program has been initiated at Jefferson Lab and significant progresses have been made since then. In this study, we present a brief description of the cooler design and a summary of the progress in this cooling R&D.« less

  10. Inside this issue: Electronics

    E-Print Network [OSTI]

    Alexandrova, Ivana

    On Campus 8 Rain Garden Installed 8 Get involved 9 Energy Campaign Update October 2010 Volume 4, Issue 1Inside this issue: Energy Campaign 1 Electronics Recycling Day 2 Upcoming Events 3 Crew Erases Office of Environmental Sustainability Sustainability Bulletin The Fall 2010 Energy Campaign is currently

  11. Calorimeter Electronics Jim Pilcher

    E-Print Network [OSTI]

    Incident particles deposit their energy in a medium Tank of liquid (water or scintillator), dense medium is produced Electronics converts this signal to digital information For signal processing to calculate-year-old design Now quantum efficiencies over 40% Segmented anodes (eg. 8x8) #12;December 11, 2008 J

  12. Electronics Research Beckman Institute

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    -assembling three-dimensional nanostructure for battery cathodes that enables extremely quick charging and discharging without sacrificing energy storage capacity.The new technology is compatible with current manufacturing methods and ideal for use in consumer electronics, electric vehicles, and medical devices, among

  13. GRAPHENE: ELECTRON PROPERTIES AND

    E-Print Network [OSTI]

    Gabrieli, John

    GRAPHENE: ELECTRON PROPERTIES AND TRANSPORT PHENOMENA Leonid Levitov MIT Lecture notes and HW and magnetoresistance Quantum Hall effect reminder The half-integer QHE in graphene Energy gaps and splitting of Landau levels QHE in p-n and p-n-p junctions Spin transport at graphene edge Fine structure constant

  14. electronic reprint Synchrotron

    E-Print Network [OSTI]

    or its storage in electronic databases or the like is not permitted without prior permission in writing-element speciation. Often, these trace elements are sorbed to clays or phyllomanganates, which are nanostructured as a function of position. Other materials examples include defects in semiconductor devices, which may also

  15. Theory of Electron-Ion Collisions

    SciTech Connect (OSTI)

    Donald C. Griffin

    2009-10-02

    Collisions of electrons with atoms and ions play a crucial role in the modeling and diagnostics of fusion plasmas. In the edge and divertor regions of magnetically confined plasmas, data for the collisions of electrons with neutral atoms and low charge-state ions are of particular importance, while in the inner region, data on highly ionized species are needed. Since experimental measurements for these collisional processes remain very limited, data for such processes depend primarily on the results of theoretical calculations. Over the period of the present grant (January 2006 â?? August 2009), we have made additional improvements in our parallel scattering programs, generated data of direct fusion interest and made these data available on The Controlled Fusion Atomic Data Center Web site at Oak Ridge National Laboratory. In addition, we have employed these data to do collsional-radiative modeling studies in support of a variety of experiments with magnetically confined fusion plasmas.

  16. Shear wall ultimate drift limits

    SciTech Connect (OSTI)

    Duffey, T.A.; Goldman, A.; Farrar, C.R.

    1994-04-01

    Drift limits for reinforced-concrete shear walls are investigated by reviewing the open literature for appropriate experimental data. Drift values at ultimate are determined for walls with aspect ratios ranging up to a maximum of 3.53 and undergoing different types of lateral loading (cyclic static, monotonic static, and dynamic). Based on the geometry of actual nuclear power plant structures exclusive of containments and concerns regarding their response during seismic (i.e.,cyclic) loading, data are obtained from pertinent references for which the wall aspect ratio is less than or equal to approximately 1, and for which testing is cyclic in nature (typically displacement controlled). In particular, lateral deflections at ultimate load, and at points in the softening region beyond ultimate for which the load has dropped to 90, 80, 70, 60, and 50 percent of its ultimate value, are obtained and converted to drift information. The statistical nature of the data is also investigated. These data are shown to be lognormally distributed, and an analysis of variance is performed. The use of statistics to estimate Probability of Failure for a shear wall structure is illustrated.

  17. The effect of electron-electron interaction induced dephasing on electronic transport in graphene nanoribbons

    SciTech Connect (OSTI)

    Kahnoj, Sina Soleimani; Touski, Shoeib Babaee; Pourfath, Mahdi E-mail: pourfath@iue.tuwien.ac.at

    2014-09-08

    The effect of dephasing induced by electron-electron interaction on electronic transport in graphene nanoribbons is theoretically investigated. In the presence of disorder in graphene nanoribbons, wavefunction of electrons can set up standing waves along the channel and the conductance exponentially decreases with the ribbon's length. Employing the non-equilibrium Green's function formalism along with an accurate model for describing the dephasing induced by electron-electron interaction, we show that this kind of interaction prevents localization and transport of electrons remains in the diffusive regime where the conductance is inversely proportional to the ribbon's length.

  18. Electron Scattering with Polarized Targets at TESLA

    E-Print Network [OSTI]

    The TESLA-N Study Group; :; M. Anselmino; E. C. Aschenauer; S. Belostotski; W. Bialowons; J. Bluemlein; V. Braun; R. Brinkmann; M. Dueren; F. Ellinghaus; K. Goeke; St. Goertz; A. Gute; J. Harmsen; D. v. Harrach; R. Jakob; E. M. Kabuss; R. Kaiser; V. Korotkov; P. Kroll; E. Leader; B. Lehmann-Dronke; L. Mankiewicz; A. Meier; W. Meyer; N. Meyners; D. Mueller; P. J. Mulders; W. -D. Nowak; L. Niedermeier; K. Oganessyan; P. V. Pobilitsa; M. V. Polyakov; G. Reicherz; K. Rith; D. Ryckbosch; A. Schaefer; K. Sinram; G. v. d. Steenhoven; E. Steffens; J. Steijger; C. Weiss

    2000-11-24

    Measurements of polarized electron-nucleon scattering can be realized at the TESLA linear collider facility with projected luminosities that are about two orders of magnitude higher than those expected of other experiments at comparable energies. Longitudinally polarized electrons, accelerated as a small fraction of the total current in the e+ arm of TESLA, can be directed onto a solid state target that may be either longitudinally or transversely polarized. A large variety of polarized parton distribution and fragmentation functions can be determined with unprecedented accuracy, many of them for the first time. A main goal of the experiment is the precise measurement of the x- and Q^2-dependence of the experimentally totally unknown quark transversity distributions that will complete the information on the nucleon's quark spin structure as relevant for high energy processes. Comparing their Q^2-evolution to that of the corresponding helicity distributions constitutes an important precision test of the predictive power of QCD in the spin sector. Measuring transversity distributions and tensor charges allows access to the hitherto unmeasured chirally odd operators in QCD which are of great importance to understand the role of chiral symmetry. The possibilities of using unpolarized targets and of experiments with a real photon beam turn TESLA-N into a versatile next-generation facility at the intersection of particle and nuclear physics.

  19. Ion bunch length effects on the beam-beam interaction and its compensation in a high-luminosity ring-ring electron-ion collider

    SciTech Connect (OSTI)

    Montag C.; Oeftiger, A.; Fischer, W.

    2012-05-20

    One of the luminosity limits in a ring-ring electron-ion collider is the beam-beam effect on the electrons. In the limit of short ion bunches, simulation studies have shown that this limit can be significantly increased by head-on beam-beam compensation with an electron lens. However, with an ion bunch length comparable to the beta-function at the IP in conjunction with a large beam-beam parameter, the electrons perform a sizeable fraction of a betatron oscillation period inside the long ion bunches. We present recent simulation results on the compensation of this beam-beam interaction with multiple electron lenses.

  20. Miniaturized electron-impact-ionization pumps using double-gated isolated vertically aligned carbon nanotube arrays

    E-Print Network [OSTI]

    Jayanty, Vivi

    2012-01-01

    There is a need for microscale vacuum pumps that can be readily integrated with other MEMS and electronic components at the chip-scale level. Miniaturized ion pumps exhibit favorable scaling down because they are surface-limited ...