National Library of Energy BETA

Sample records for likes sinode systems

  1. SiNode Systems

    Broader source: Energy.gov [DOE]

    SiNode Systems is a battery materials venture developing silicon-graphene anodes for the next generation of lithium-ion batteries. SiNode anodes offer higher battery capacity and faster charging rates, all while being produced via a low cost solution chemistry-based manufacturing process.

  2. Magmatic "Quantum-Like" Systems

    E-Print Network [OSTI]

    Elemer E Rosinger

    2008-12-16

    Quantum computation has suggested, among others, the consideration of "non-quantum" systems which in certain respects may behave "quantum-like". Here, what algebraically appears to be the most general possible known setup, namely, of {\\it magmas} is used in order to construct "quantum-like" systems. The resulting magmatic composition of systems has as a well known particular case the tensor products.

  3. Technology-to-Market Blogs | Department of Energy

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

    energy research and education. October 3, 2014 SiNode Systems - Advanced silicon graphene batteries. | Photo courtesy of Sinode Systems. Startup Success: Energy Department...

  4. DOE Awards $5.3 Million to Support the Development of University...

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

    Million to Advance Clean Energy Commercialization SiNode Systems - Advanced silicon graphene batteries. | Photo courtesy of Sinode Systems. Startup Success: Energy Department...

  5. Where Are They Now? National Clean Energy Business Plan Competition...

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

    of Colorado Cleantech New Venture Challenge SiNode Systems - Advanced silicon graphene batteries. | Photo courtesy of Sinode Systems. Startup Success: Energy Department...

  6. OGY Control of Haken Like Systems on Different Poincare Sections

    E-Print Network [OSTI]

    Mozhgan Mombeini

    2012-06-05

    The Chua system, the Lorenz system, the Chen system and The L\\"u system are chaotic systems that their state space equations is very similar to Haken system which is a nonlinear model of a optical slow-fast system. These Haken-Like Sys-tems have very similar properties. All have two slow but unstable eigenvalues and one fastest but stable eigenvalue. This lets that an approximation of slow manifold be equivalent with unstable manifold of the system. In other hand, control of discreet model of the system on a defined manifold (Poincare map) is main essence of some important control methods of chaotic systems for example OGY method. Here, by using different methods of defining slow manifold of the H-L systems the efficiency of the OGY control for stabilizing problem investigated.

  7. Nonlinear dynamics of a system of particle-like wavepackets

    E-Print Network [OSTI]

    A. Babin; A. Figotin

    2007-08-13

    This work continues our studies of nonlinear evolution of a system of wavepackets. We study a wave propagation governed by a nonlinear system of hyperbolic PDE's with constant coefficients with the initial data being a multi-wavepacket. By definition a general wavepacket has a well defined principal wave vector, and, as we proved in previous works, the nonlinear dynamics preserves systems of wavepackets and their principal wave vectors. Here we study the nonlinear evolution of a special class of wavepackets, namely particle-like wavepackets. A particle-like wavepacket is of a dual nature: on one hand, it is a wave with a well defined principal wave vector, on the other hand, it a particle in the sense that it can be assigned a well defined position in the space. We prove that under the nonlinear evolution a generic multi-particle wavepacket remains to be a multi-particle wavepacket with a high accuracy, and every constituting single particle-like wavepacket not only preserves its principal wave number but also it has a well-defined space position evolving with a constant velocity which is its group velocity. Remarkably the described properties hold though the involved single particle-like wavepackets undergo nonlinear interactions and multiple collisions in the space. We also prove that if principal wavevectors of multi-particle wavepacket are generic, the result of nonlinear interactions between different wavepackets is small and the approximate linear superposition principle holds uniformly with respect to the initial spatial positions of wavepackets.

  8. DETECTABILITY OF EARTH-LIKE PLANETS IN CIRCUMSTELLAR HABITABLE ZONES OF BINARY STAR SYSTEMS WITH SUN-LIKE COMPONENTS

    SciTech Connect (OSTI)

    Eggl, Siegfried; Pilat-Lohinger, Elke; Haghighipour, Nader

    2013-02-20

    Given the considerable percentage of stars that are members of binaries or stellar multiples in the solar neighborhood, it is expected that many of these binaries host planets, possibly even habitable ones. The discovery of a terrestrial planet in the {alpha} Centauri system supports this notion. Due to the potentially strong gravitational interaction that an Earth-like planet may experience in such systems, classical approaches to determining habitable zones (HZ), especially in close S-type binary systems, can be rather inaccurate. Recent progress in this field, however, allows us to identify regions around the star permitting permanent habitability. While the discovery of {alpha} Cen Bb has shown that terrestrial planets can be detected in solar-type binary stars using current observational facilities, it remains to be shown whether this is also the case for Earth analogs in HZs. We provide analytical expressions for the maximum and rms values of radial velocity and astrometric signals, as well as transit probabilities of terrestrial planets in such systems, showing that the dynamical interaction of the second star with the planet may indeed facilitate the planets' detection. As an example, we discuss the detectability of additional Earth-like planets in the averaged, extended, and permanent HZs around both stars of the {alpha} Centauri system.

  9. Lyapunov-Like Conditions for the Existence of Zeno Behavior in Hybrid and Lagrangian Hybrid Systems

    E-Print Network [OSTI]

    Ames, Aaron

    Lyapunov-Like Conditions for the Existence of Zeno Behavior in Hybrid and Lagrangian Hybrid Systems Andrew Lamperski and Aaron D. Ames Abstract-- Lyapunov-like conditions that utilize generaliza- tions configuration space, we utilize our Lyapunov-like conditions to obtain easily verifiable necessary

  10. An Experimental Comparison of Pregel-like Graph Processing Systems

    E-Print Network [OSTI]

    Daudjee, Khuzaima

    Attribution- NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this li- cense, visit http://creativecommons.org/licenses/by-nc Apache Hama [2], Apache Giraph [1], Catch the Wind (CatchW) [34], GPS [32], GraphLab [28] (which now incorporates PowerGraph [18]), and Mizan [23]. The relative performance characteristics of such systems

  11. A Privacy Preservation Model for Facebook-like Social Network Systems

    E-Print Network [OSTI]

    Regina, University of

    A Privacy Preservation Model for Facebook-like Social Network Systems Philip W. L. Fong, Mohd Anwar-0-7731-0659 (print) ISBN 978-0-7731-0660 (online) #12;A Privacy Preservation Model for Facebook-Like Social Network growth in the popularity of social network systems, with Facebook being an archetypical example. Due

  12. Defining the Origins of the NOD-Like Receptor System at the Base of Animal Evolution

    E-Print Network [OSTI]

    Defining the Origins of the NOD-Like Receptor System at the Base of Animal Evolution Christina mechanisms at the base of animal evolution. Key words: Hydra, innate immunity, epithelial defense, NOD and oligomerisation domain-like receptors (NLRs) or NODs. Vertebrate NLR genes encode regulatory cytosolic proteins

  13. ``Plate-like'' subsidence of the East Pacific RiseSouth Pacific superswell system

    E-Print Network [OSTI]

    Watts, A. B. "Tony"

    ``Plate-like'' subsidence of the East Pacific Rise­­South Pacific superswell system J. K. Hillier significantly, the superswell appears to be part of a large-scale, ``plate-like,'' subsidence that extends to the EPR crest, rather than an isolated shallowing that reverses the subsidence and causes uplift. We

  14. Making Search Efficient on Gnutella-like P2P Systems Department of ECECS

    E-Print Network [OSTI]

    Zhu, Yingwu "Jason"

    and document indices due to node churn in P2P networks. For example, the churn rate of coming and going nodes]. Node churn complicates the task of search on structured P2P networks. First, each node failure requires and effectively. However, node churn causes little problem for Gnutella- like P2P systems because such systems

  15. Energy Department Announces Regional Winners of University Clean...

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

    lithium battery anode technology addresses the two aspects of battery improvement, energy capacity and power density. SiNode Systems' Si-graphene composite anode provides up...

  16. Electromagnetially-induced-transparency-like ground-state cooling in a double-cavity optomechanical system

    E-Print Network [OSTI]

    Yujie Guo; Kai Li; Wenjie Nie; Yong Li

    2014-07-19

    We propose to cool a mechanical resonator close to its ground state via an electromagnetically-induced-transparency- (EIT-) like cooling mechanism in a double-cavity optomechanical system, where an additional cavity couples to the original one in the standard optomechanical system. By choosing optimal parameters such that the cooling process of the mechanical resonator corresponds to the maximum value of the optical fluctuation spectrum and the heating process to the minimum one, the mechanical resonator can be cooled with the final mean phonon number less than that at the absence of the additional cavity. And we show the mechanical resonator may be cooled close to its ground state via such an EIT-like cooling mechanism even when the original resolved sideband condition is not fulfilled at the absence of the additional cavity.

  17. Quantum thermodynamic Carnot and Otto-like cycles for a two-level system

    E-Print Network [OSTI]

    Gian Paolo Beretta

    2007-03-28

    From the thermodynamic equilibrium properties of a two-level system with variable energy-level gap $\\Delta$, and a careful distinction between the Gibbs relation $dE = T dS + (E/\\Delta) d\\Delta$ and the energy balance equation $dE = \\delta Q^\\leftarrow - \\delta W^\\to$, we infer some important aspects of the second law of thermodynamics and, contrary to a recent suggestion based on the analysis of an Otto-like thermodynamic cycle between two values of $\\Delta$ of a spin-1/2 system, we show that a quantum thermodynamic Carnot cycle, with the celebrated optimal efficiency $1 - (T_{low}/T_{high})$, is possible in principle with no need of an infinite number of infinitesimal processes, provided we cycle smoothly over at least three (in general four) values of $\\Delta$, and we change $\\Delta$ not only along the isoentropics, but also along the isotherms, e.g., by use of the recently suggested maser-laser tandem technique. We derive general bounds to the net-work to high-temperature-heat ratio for a Carnot cycle and for the 'inscribed' Otto-like cycle, and represent these cycles on useful thermodynamic diagrams.

  18. Extended space expectation values of position related operators for hydrogen-like quantum system evolutions

    SciTech Connect (OSTI)

    Kalay, Berfin; Demiralp, Metin

    2014-10-06

    The expectation value definitions over an extended space from the considered Hilbert space of the system under consideration is given in another paper of the second author in this symposium. There, in that paper, the conceptuality rather than specification is emphasized on. This work uses that conceptuality to investigate the time evolutions of the position related operators' expectation values not in its standard meaning but rather in a new version of the definition over not the original Hilbert space but in the space obtained by extensions via introducing the images of the given initial wave packet under the positive integer powers of the system Hamiltonian. These images may not be residing in the same space of the initial wave packet when certain singularities appear in the structure of the system Hamiltonian. This may break down the existence of the integrals in the definitions of the expectation values. The cure is the use of basis functions in the abovementioned extended space and the sandwiching of the target operator whose expectation value is under questioning by an appropriately chosen operator guaranteeing the existence of the relevant integrals. Work specifically focuses on the hydrogen-like quantum systems whose Hamiltonians contain a polar singularity at the origin.

  19. Quantum thermodynamic Carnot and Otto-like cycles for a two-level system

    E-Print Network [OSTI]

    Beretta, G P

    2007-01-01

    From the thermodynamic equilibrium properties of a two-level system with variable energy-level gap $\\Delta$, and a careful distinction between the Gibbs relation $dE = T dS + (E/\\Delta) d\\Delta$ and the energy balance equation $dE = \\delta Q^\\leftarrow - \\delta W^\\to$, we infer some important aspects of the second law of thermodynamics and, contrary to a recent suggestion based on the analysis of an Otto-like thermodynamic cycle between two values of $\\Delta$ of a spin-1/2 system, we show that a quantum thermodynamic Carnot cycle, with the celebrated optimal efficiency $1 - (T_{low}/T_{high})$, is possible in principle with no need of an infinite number of infinitesimal processes, provided we cycle smoothly over at least three (in general four) values of $\\Delta$, and we change $\\Delta$ not only along the isoentropics, but also along the isotherms, e.g., by use of the recently suggested maser-laser tandem technique. We derive general bounds to the net-work to high-temperature-heat ratio for a Carnot cycle and...

  20. Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative to propellers in small

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    1 Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative. Finally there is a description of the control system implementation for the tail's motion. Index terms--Fish propulsion, underwater robot, fish design. I. INTRODUCTION LTHOUGH almost all marine vehicles use propellers

  1. Laser-like instabilities in quantum nano-electromechanical systems S. D. Bennett and A. A. Clerk

    E-Print Network [OSTI]

    Bennett, Steven D.

    Laser-like instabilities in quantum nano-electromechanical systems S. D. Bennett and A. A. Clerk; published 9 November 2006 We discuss negative damping regimes in quantum nano-electromechanical systemsRevB.74.201301 PACS number s : 73.23.Hk, 85.85. j, 72.70. m At their heart, quantum nano-electromechanical

  2. Some Quantum-Like Features of Mass Politics in Two-Party Systems

    E-Print Network [OSTI]

    Charles E. Smith Jr.; Christopher Zorn

    2011-07-05

    We expand the substantive terrain of QI's reach by illuminating a body of political theory that to date has been elaborated in strictly classical language and formalisms but has complex features that seem to merit generalizations of the problem outside the confines of classicality. The line of research, initiated by Fiorina in the 1980s, seeks to understand the origins and nature of party governance in two-party political systems wherein voters cast partisan ballots in two contests, one that determines partisan control of the executive branch and another that determines party control of a legislature. We describe how research in this area evolved in the last two decades in directions that bring it now to the point where further elaboration and study seem natural in the more general formalistic and philosophical environments embraced in QI research. In the process, we find evidence that a restriction of a classical model that has animated work in the field appears violated in a form that leads one naturally to embrace the superposition principle. We then connect classical distinctions between separable and nonseparable preferences that are common in political science to their quantum and quantum-like counterparts in the QI literature, finding special affinity for a recently-introduced understanding of the distinction that provides a passageway into the boundary between fully quantum and fully classical views of the distinction and thereby provides new leverage on existing work germane to the theory.

  3. Optimum PID Control of Multi-wing Attractors in A Family of Lorenz-like Chaotic Systems

    E-Print Network [OSTI]

    Anish Acharya; Saptarshi Das; Indranil Pan

    2012-10-30

    Multi-wing chaotic attractors are highly complex nonlinear dynamical systems with higher number of index-2 equilibrium points. Due to the presence of several equilibrium points, randomness of the state time series for these multi-wing chaotic systems is higher than that of the conventional double wing chaotic attractors. A real coded Genetic Algorithm (GA) based global optimization framework has been presented in this paper, to design optimum PID controllers so as to control the state trajectories of three different multi-wing Lorenz like chaotic systems viz. Lu, Rucklidge and Sprott-1 system.

  4. Reasoning about Equilibria in Game-Like Concurrent Systems Julian Gutierrez and Paul Harrenstein and Michael Wooldridge

    E-Print Network [OSTI]

    Woolridge, Mike

    Reasoning about Equilibria in Game-Like Concurrent Systems Julian Gutierrez and Paul Harrenstein, histories, ...) will be generated in equi- librium? In (Gutierrez, Harrenstein, and Wooldridge 2013 can be identified as being the result of Nash equilib- rium strategies, and (Gutierrez, Harrenstein

  5. Method for removing adhering or dust-like deposits in systems handling uranium hexafluoride

    SciTech Connect (OSTI)

    Bacher, W.; Jacob, E.

    1984-02-28

    A process is claimed for removing adhering or dust-like deposits in an apparatus which handles uranium hexafluoride. The process includes the steps of: (a) reacting the deposits with a gaseous boron halogenide other than boron trifluoride, to form at least one uranium halogenide; and (b) reacting the at least one uranium halogenide with a fluorine containing substance to form uranium hexafluoride.

  6. Maximizing tolerable disturbances in a coupled structural system using a QFT-like method 

    E-Print Network [OSTI]

    Rhodes, Quenten Zane

    2000-01-01

    and built. An analytical model for this system was built using a combination of Lagrange's Equations and Component Mode Synthesis. These two methods, used in conjunction, allowed a single-input single-output (SISO) transfer function set to be derived...

  7. Advanced Characterization of Molecular Interactions in TALSPEAK-like Separations Systems

    SciTech Connect (OSTI)

    Nash, Kenneth; Guelis, Artem; Lumetta, Gregg J.; Sinkov, Sergey

    2015-10-21

    Combining unit operations in advanced aqueous reprocessing schemes brings obvious process compactness advantages, but at the same time greater complexity in process design and operation. Unraveling these interactions requires increasingly sophisticated analytical tools and unique approaches for adequate analysis and characterization that probe molecular scale interactions. Conventional slope analysis methods of solvent extraction are too indirect to provide much insight into such interactions. This project proposed the development and verification of several analytical tools based on studies of TALSPEAK-like aqueous processes. As such, the chemistry of trivalent fission product lanthanides, americium, curium, plutonium, neptunium and uranium figure prominently in these studies. As the project was executed, the primary focus fell upon the chemistry or trivalent lanthanides and actinides. The intent of the investigation was to compare and contrast the results from these various complementary techniques/studies to provide a stronger basis for predicting the performance of extractant/diluent mixtures as media for metal ion separations. As many/most of these techniques require the presence of metal ions at elevated concentrations, it was expected that these studies would take this investigation into the realm of patterns of supramolecular organization of metal complexes and extractants in concentrated aqueous/organic media. We expected to advance knowledge of the processes that enable and limit solvent extraction reactions as a result of the application of fundamental chemical principles to explaining interactions in complex media.

  8. Methyl Chloride from Direct Methane Partial Oxidation: A High-Temperature Shilov-Like Catalytic System

    SciTech Connect (OSTI)

    Yongchun Tang; John Ma

    2012-03-23

    The intention of this study is to demonstrate and evaluate the scientific and economic feasibility of using special solvents to improve the thermal stability of Pt-catalyst in the Shilov system, such that a high reaction temperature could be achieved. The higher conversion rate (near 100%) of methyl chloride from partial oxidation of methane under the high temperature ({approx} 200 C) without significant Pt0 precipitation has been achieved. High concentration of the Cl- ion has been identified as the key for the stabilization of the Pt-catalysts. H/D exchange measurements indicated that the over oxidation will occur at the elevated temperature, developments of the effective product separation processes will be necessary in order to rationalize the industry-visible CH4 to CH3Cl conversion.

  9. Phased-array ultrasonic surface contour mapping system and method for solids hoppers and the like

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV); Smith, Jr., Nelson S. (Morgantown, WV)

    1994-01-01

    A real time ultrasonic surface contour mapping system is provided including a digitally controlled phased-array of transmitter/receiver (T/R) elements located in a fixed position above the surface to be mapped. The surface is divided into a predetermined number of pixels which are separately scanned by an arrangement of T/R elements by applying phase delayed signals thereto that produce ultrasonic tone bursts from each T/R that arrive at a point X in phase and at the same time relative to the leading edge of the tone burst pulse so that the acoustic energies from each T/R combine in a reinforcing manner at point X. The signals produced by the reception of the echo signals reflected from point X back to the T/Rs are also delayed appropriately so that they add in phase at the input of a signal combiner. This combined signal is then processed to determine the range to the point X using density-corrected sound velocity values. An autofocusing signal is developed from the computed average range for a complete scan of the surface pixels. A surface contour map is generated in real time form the range signals on a video monitor.

  10. System and method for measuring particles in a sample stream of a flow cytometer or the like

    DOE Patents [OSTI]

    Graves, Steven W. (San Juan Pueblo, NM); Habberset, Robert C. (Santa Fe, NM)

    2010-11-16

    A system and method for analyzing a particle in a sample stream of a flow cytometer or the like. The system has a light source, such as a laser pointer module, for generating a low powered light beam and a fluidics apparatus which is configured to transport particles in the sample stream at substantially low velocity through the light beam for interrogation. Detectors, such as photomultiplier tubes, are configured to detect optical signals generated in response to the light beam impinging the particles. Signal conditioning circuitry is connected to each of the detectors to condition each detector output into electronic signals for processing and is designed to have a limited frequency response to filter high frequency noise from the detector output signals.

  11. Vehicle Technologies Office Merit Review 2015: High Energy Anode Material Development for Li-ion Batteries

    Broader source: Energy.gov [DOE]

    Presentation given by Sinode Systems at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high energy anode material...

  12. Startup Success: Energy Department Helping Small Businesses Bring...

    Energy Savers [EERE]

    batteries with AZ Electronic Materials - a business unit of Merck KGaA, Darmstadt, Germany. This marks SiNode's second agreement with a major corporate partner. Dfly Systems...

  13. A Blue Tilt in the Globular Cluster System of the Milky Way-like Galaxy NGC 5170

    E-Print Network [OSTI]

    Forbes, Duncan; Harris, William; Bailin, Jeremy; Strader, Jay; Brodie, Jean; Larsen, Soeren

    2009-01-01

    Here we present HST/ACS imaging, in the B and I bands, of the edge-on Sb/Sc galaxy NGC 5170. Excluding the central disk region region, we detect a 142 objects with colours and sizes typical of globular clusters (GCs). Our main result is the discovery of a `blue tilt' (a mass-metallicity relation), at the 3sigma level, in the metal-poor GC subpopulation of this Milky Way like galaxy. The tilt is consistent with that seen in massive elliptical galaxies and with the self enrichment model of Bailin & Harris. For a linear mass-metallicity relation, the tilt has the form Z ~ L^{0.42 +/- 0.13}. We derive a total GC system population of 600 +/- 100, making it much richer than the Milky Way. However when this number is normalised by the host galaxy luminosity or stellar mass it is similar to that of M31. Finally, we report the presence of a potential Ultra Compact Dwarf of size ~ 6 pc and luminosity M_I ~ -12.5, assuming it is physically associated with NGC 5170.

  14. Insulating state to quantum Hall-like state transition in a spin-orbit-coupled two-dimensional electron system

    SciTech Connect (OSTI)

    Lo, Shun-Tsung; Hsu, Chang-Shun [Graduate Institute of Applied Physics, National Taiwan University, Taipei 10617, Taiwan (China); Lin, Y. M.; Lin, S.-D.; Lee, C. P. [Department of Electronics Engineering and Institute of Electronics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Ho, Sheng-Han; Chuang, Chiashain; Wang, Yi-Ting [Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China); Liang, C.-T. [Graduate Institute of Applied Physics, National Taiwan University, Taipei 10617, Taiwan (China); Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)

    2014-07-07

    We study interference and interactions in an InAs/InAsSb two-dimensional electron system. In such a system, spin-orbit interactions are shown to be strong, which result in weak antilocalization (WAL) and thereby positive magnetoresistance around zero magnetic field. After suppressing WAL by the magnetic field, we demonstrate that classical positive magnetoresistance due to spin-orbit coupling plays a role. With further increasing the magnetic field, the system undergoes a direct insulator-quantum Hall transition. By analyzing the magnetotransport behavior in different field regions, we show that both electron-electron interactions and spin-related effects are essential in understanding the observed direct transition.

  15. Constraints on the range lambda of Yukawa-like modifications to the Newtonian inverse-square law of gravitation from Solar System planetary motions

    E-Print Network [OSTI]

    Lorenzo Iorio

    2007-09-25

    In this paper we use the latest corrections to the Newton-Einstein secular perihelion rates of some planets of the Solar System, phenomenologically estimated with the EPM2004 ephemerides by the Russian astronomer E.V. Pitjeva, to put severe constraints on the range parameter lambda characterizing the Yukawa-like modifications of the Newtonian inverse-square law of gravitation. It turns out that the range cannot exceed about one tenth of an Astronomical Unit. We assumed neither equivalence principle violating effects nor spatial variations of $\\alpha$ and $\\lambda$. This finding may have important consequences on all the modified theories of gravity involving Yukawa-type terms with range parameters much larger than the Solar System size. However, caution is advised since we, currently have at our disposal only the periehlion extra-rates estimated by Pitjeva: if and when other groups will estimate their own corrections to the secular motion of perihelia, more robust and firm tests may be conducted.

  16. Practically everybody in our Under-a day's work-on projects like deep-your interests. So what can you do seas Division takes to the water now submergence systems, manned sub-about it? Talk to the Westinghouse

    E-Print Network [OSTI]

    #12;Practically everybody in our Under- a day's work-on projects like deep- your interests. So what can you do seas Division takes to the water now submergence systems, manned sub- about it? Talk to the Westinghouse and then. Like these engineers at mersibies, sonar and underwater recruiter when he visits

  17. Low-energy Scattering of $(D^{*}\\bar{D}^{*})^\\pm$ System and the Resonance-like Structure $Z_c(4025)$

    E-Print Network [OSTI]

    Ying Chen; Ming Gong; Yu-Hong Lei; Ning Li; Jian Liang; Chuan Liu; Jin-Long Liu; Yong-Fu Liu; Yu-Bin Liu; Zhaofeng Liu; Jian-Ping Ma; Zhan-Lin Wang; Jian-Bo Zhang

    2015-03-09

    In this paper, low-energy scattering of the $(D^{*}\\bar{D}^{*})^\\pm$ meson system is studied within L\\"uscher's finite-size formalism using $N_{f}=2$ twisted mass gauge field configurations. With three different pion mass values, the $s$-wave threshold scattering parameters, namely the scattering length $a_0$ and the effective range $r_0$, are extracted in $J^P=1^+$ channel. Our results indicate that, in this particular channel, the interaction between the two vector charmed mesons is weakly repulsive in nature hence do not support the possibility of a shallow bound state for the two mesons, at least for the pion mass values being studied. This study provides some useful information on the nature of the newly discovered resonance-like structure $Z_c(4025)$ observed in various experiments.

  18. The Complete Census of 70-um-Bright Debris Disks within the FEPS (Formation and Evolution of Planetary Systems) Spitzer Legacy Survey of Sun-like Stars

    E-Print Network [OSTI]

    Lynne A. Hillenbrand; John M. Carpenter; Jinyoung Serena Kim; Michael R. Meyer; Dana E. Backman; Amaya Moro-Martin; David J. Hollenbach; Dean C. Hines; Ilaria Pascucci; Jeroen Bouwman

    2007-12-30

    (abbreviated) We report detection with the Spitzer Space Telescope of cool dust surrounding solar type stars. The observations were performed as part of the Legacy Science Program, ``Formation and Evolution of Planetary Systems'' (FEPS). From the overall FEPS sample (Meyer et al. 2006) of 328 stars having ages ~0.003-3 Gyr we have selected sources with 70 um flux densities indicating excess in their spectral energy distributions above expected photospheric emission........ .....The rising spectral energy distributions towards - and perhaps beyond - 70 um imply dust temperatures T_dust temperature, location, fractional luminosity, and mass of the dust from fitted single temperature blackbody models. For >1/3 of the debris sources we find that multiple temperature components are suggested, implying a spatial distribution of dust extending over many tens of AU. Because the disks are dominated by collisional processes, the parent body (planetesimal) belts may be extended as well. Preliminary assessment of the statistics of cold debris around sun-like stars shows that ~10% of FEPS targets with masses between 0.6 and 1.8 Msun and ages between 30 Myr and 3 Gyr exhibit 70 um emission in excess of the expected photospheric flux density. We find that fractional excess amplitudes appear higher for younger stars and that there may be a trend in 70 um excess frequency with stellar mass.

  19. Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 18 Systems, Including a Planet Receiving Earth-like Insolation

    E-Print Network [OSTI]

    Montet, Benjamin T; Foreman-Mackey, Daniel; Johnson, John Asher; Hogg, David W; Bowler, Brendan P; Latham, David W; Bieryla, Allyson; Mann, Andrew W

    2015-01-01

    The extended Kepler mission, K2, is now providing photometry of new fields every three months in a search for transiting planets. In a recent study, Foreman-Mackey and collaborators presented a list of 36 planet candidates orbiting 31 stars in K2 Campaign 1. In this contribution, we present stellar and planetary properties for all systems. We combine ground-based seeing-limited survey data and adaptive optics imaging with an automated transit analysis scheme to validate 18 candidates as planets and identify 6 candidates as likely false positives. Of particular interest is EPIC 201912552, a bright (K=8.9) M2 dwarf hosting a 2.24 \\pm 0.25 Earth radius planet with an equilibrium temperature of 271 \\pm 16 K and an orbital period of 33 days. We also present two new open-source software packages that enabled this analysis: isochrones, a flexible tool for fitting theoretical stellar models to observational data to determine stellar properties, and vespa, a new general-purpose procedure to calculate false positive pr...

  20. AnonyFacebook -Liking Facebook Posts Anonymously

    E-Print Network [OSTI]

    Ferreira, Paulo

    AnonyFacebook - Liking Facebook Posts Anonymously Pedro Alves1 and Paulo Ferreira2 1 Opensoft the simple act of liking (on Facebook) an anti-government article or video can be (and has already been) used to anonymously "like" any post. In this paper we present anonyFacebook, a system that allows Face- book users

  1. I would like to receive funding to continue my PhD course in Planetary Science at the University of Planetary science is the study of this and other solar systems. Current hot topics that have attracted

    E-Print Network [OSTI]

    Withers, Paul

    I would like to receive funding to continue my PhD course in Planetary Science at the University of Arizona. Planetary science is the study of this and other solar systems. Current hot topics that have in my first year of the PhD program here. My funding this year comes from department sources. However

  2. Radio frequency security system, method for a building facility or the like, and apparatus and methods for remotely monitoring the status of fire extinguishers

    DOE Patents [OSTI]

    Runyon, Larry (Richland, WA); Gunter, Wayne M. (Richland, WA); Gilbert, Ronald W. (Gilroy, CA)

    2006-07-25

    A system for remotely monitoring the status of one or more fire extinguishers includes means for sensing at least one parameter of each of the fire extinguishers; means for selectively transmitting the sensed parameters along with information identifying the fire extinguishers from which the parameters were sensed; and means for receiving the sensed parameters and identifying information for the fire extinguisher or extinguishers at a common location. Other systems and methods for remotely monitoring the status of multiple fire extinguishers are also provided.

  3. State Regulatory Framework Will Most Likely Result in Robust...

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

    State Regulatory Framework Will Most Likely Result in Robust CO2 Pipeline System, New Study Says State Regulatory Framework Will Most Likely Result in Robust CO2 Pipeline System,...

  4. Simulating the Fate of an Earth-like Planet Inclined to the Ecliptic Plane to Improve Understanding of Planetary System Formation 

    E-Print Network [OSTI]

    Nichols, Kristin

    2013-02-01

    its dynamics will continue to vary over time. For the Sun-Earth-Jupiter system simulated in this paper (run over 119,000 years), orbits inclined to the ecliptic plane greater than 50° became unstable, with Earth ejection after 62,000 years (85...

  5. MID-INFRARED HIGH-CONTRAST IMAGING OF HD 114174 B: AN APPARENT AGE DISCREPANCY IN A ''SIRIUS-LIKE'' BINARY SYSTEM

    SciTech Connect (OSTI)

    Matthews, Christopher T.; Crepp, Justin R.; Skemer, Andrew; Hinz, Philip M.; Bailey, Vanessa P.; Defrere, Denis; Leisenring, Jarron; Gianninas, Alexandros; Kilic, Mukremin; Skrutskie, Michael; Esposito, Simone; Puglisi, Alfio

    2014-03-10

    We present new observations of the faint ''Sirius-like'' companion discovered to orbit HD 114174. Previous attempts to image HD 114174 B at mid-infrared wavelengths using NIRC2 at Keck have resulted in a non-detection. Our new L'-band observations taken with the Large Binocular Telescope and L/M-band InfraRed Camera recover the companion (?L = 10.15 ± 0.15 mag, ? = 0.''675 ± 0.''016) with a high signal-to-noise ratio (10?). This measurement represents the deepest L' high-contrast imaging detection at subarcsecond separations to date, including extrasolar planets. We confirm that HD 114174 B has near-infrared colors consistent with the interpretation of a cool white dwarf (WD; J – L' = 0.76 ± 0.19 mag, K – L' = 0.64 ± 0.20). New model fits to the object's spectral energy distribution indicate a temperature T {sub eff} = 4260 ± 360 K, surface gravity log g = 7.94 ± 0.03, a cooling age t{sub c} ? 7.8 Gyr, and mass M = 0.54 ± 0.01 M {sub ?}. We find that the cooling ages given by theoretical atmospheric models do not agree with the age of HD 114174 A derived from both isochronological and gyrochronological analyses. We speculate on possible scenarios to explain the apparent age discrepancy between the primary and secondary. HD 114174 B is a nearby benchmark WD that will ultimately enable a dynamical mass estimate through continued Doppler and astrometric monitoring. Efforts to characterize its physical properties in detail will test theoretical atmospheric models and improve our understanding of WD evolution, cooling, and progenitor masses.

  6. Tissue-like phantoms

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA); De Grand, Alec M. (Boston, MA)

    2007-10-30

    The invention is based, in part, on the discovery that by combining certain components one can generate a tissue-like phantom that mimics any desired tissue, is simple and inexpensive to prepare, and is stable over many weeks or months. In addition, new multi-modal imaging objects (e.g., beads) can be inserted into the phantoms to mimic tissue pathologies, such as cancer, or merely to serve as calibration standards. These objects can be imaged using one, two, or more (e.g., four) different imaging modalities (e.g., x-ray computed tomography (CT), positron emission tomography (PET), single photon emission computed tomography (SPECT), and near-infrared (NIR) fluorescence) simultaneously.

  7. Paying for Likes? Understanding Facebook Like Fraud Using Honeypots

    E-Print Network [OSTI]

    De Cristofaro, Emiliano; Jourjon, Guillaume; Kaafar, Mohamed Ali; Shafiq, M Zubair

    2014-01-01

    Facebook pages offer an easy way to reach out to a very large audience as they can easily be promoted using Facebook's advertising platform. Recently, the number of likes of a Facebook page has become a measure of its popularity and profitability, and an underground market of services boosting page likes, aka like farms, has emerged. Some reports have suggested that like farms use a network of profiles that also like other pages to elude fraud protection algorithms, however, to the best of our knowledge, there has been no systematic analysis of Facebook pages' promotion methods. This paper presents a comparative measurement study of page likes garnered via Facebook ads and by a few like farms. We deploy a set of honeypot pages, promote them using both methods, and analyze garnered likes based on likers' demographic, temporal, and social characteristics. We highlight a few interesting findings, including that some farms seem to be operated by bots and do not really try to hide the nature of their operations, w...

  8. PLANETARY CONSTRUCTION ZONES IN OCCULTATION: DISCOVERY OF AN EXTRASOLAR RING SYSTEM TRANSITING A YOUNG SUN-LIKE STAR AND FUTURE PROSPECTS FOR DETECTING ECLIPSES BY CIRCUMSECONDARY AND CIRCUMPLANETARY DISKS

    SciTech Connect (OSTI)

    Mamajek, Eric E.; Quillen, Alice C.; Pecaut, Mark J.; Moolekamp, Fred; Scott, Erin L.; Kenworthy, Matthew A.; Cameron, Andrew Collier; Parley, Neil R.

    2012-03-15

    The large relative sizes of circumstellar and circumplanetary disks imply that they might be seen in eclipse in stellar light curves. We estimate that a survey of {approx}10{sup 4} young ({approx}10 million year old) post-accretion pre-main-sequence stars monitored for {approx}10 years should yield at least a few deep eclipses from circumplanetary disks and disks surrounding low-mass companion stars. We present photometric and spectroscopic data for a pre-main-sequence K5 star (1SWASP J140747.93-394542.6 = ASAS J140748-3945.7), a newly discovered {approx}0.9 M{sub Sun} member of the {approx}16 Myr old Upper Centaurus-Lupus subgroup of Sco-Cen at a kinematic distance of 128 {+-} 13 pc. This star exhibited a remarkably long, deep, and complex eclipse event centered on 2007 April 29 (as discovered in Super Wide Angle Search for Planets (SuperWASP) photometry, and with portions of the dimming confirmed by All Sky Automated Survey (ASAS) data). At least five multi-day dimming events of >0.5 mag are identified, with a >3.3 mag deep eclipse bracketed by two pairs of {approx}1 mag eclipses symmetrically occurring {+-}12 days and {+-}26 days before and after. Hence, significant dimming of the star was taking place on and off over at least a {approx}54 day period in 2007, and a strong >1 mag dimming event occurring over a {approx}12 day span. We place a firm lower limit on the period of 850 days (i.e., the orbital radius of the eclipser must be >1.7 AU and orbital velocity must be <22 km s{sup -1}). The shape of the light curve is similar to the lopsided eclipses of the Be star EE Cep. We suspect that this new star is being eclipsed by a low-mass object orbited by a dense inner disk, further girded by at least three dusty rings of optical depths near unity. Between these rings are at least two annuli of near-zero optical depth (i.e., gaps), possibly cleared out by planets or moons, depending on the nature of the secondary. For possible periods in the range 2.33-200 yr, the estimated total ring mass is {approx}8-0.4 M{sub Moon} (if the rings have optical opacity similar to Saturn's rings), and the edge of the outermost detected ring has orbital radius {approx}0.4-0.09 AU. In the new era of time-domain astronomy opened by surveys like SuperWASP, ASAS, etc., and soon to be revolutionized by Large Synoptic Survey Telescope, discovering and characterizing eclipses by circumplanetary and circumsecondary disks will provide us with observational constraints on the conditions that spawn satellite systems around gas giant planets and planetary systems around stars.

  9. Tokamak-like Vlasov equilibria

    E-Print Network [OSTI]

    Tasso, H

    2014-01-01

    Vlasov equilibria of axisymmetric plasmas with vacuum toroidal magnetic field can be reduced, up to a selection of ions and electrons distributions functions, to a Grad-Shafranov-like equation. Quasineutrality narrow the choice of the distributions functions. In contrast to two-dimensional translationally symmetric equilibria whose electron distribution function consists of a displaced Maxwellian, the toroidal equilibria need deformed Maxwellians. In order to be able to carry through the calculations, this deformation is produced by means of either a Heaviside step function or an exponential function. The resulting Grad-Shafranov-like equations are established explicitly.

  10. Crystal-Like geometric modeling 

    E-Print Network [OSTI]

    Landreneau, Eric Benjamin

    2006-08-16

    Extrusion. A regular pentagon can extrude into a regu- lar dodecahedron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9 Pentagonal Rows. The dodecahedral extrusion creates two rows of pentagons that are interleaved with each other... is to group them by lattice systems. There are seven of these: 1 Cubic/Isometric ? Forms cubes, octahedra, dodecahedra. Have 3 orthogonal axes of symmetry. 2 Tetragonal ? Although similar to cubic, they are longer along one axis than another, and form prisms...

  11. Sandia Energy - Sandia-Developed LED Pulser Delivers Laser-Like...

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

    Sandia-Developed LED Pulser Delivers Laser-Like Performance at Fraction of the Cost Home Energy CRF Facilities Capabilities News News & Events Research & Capabilities Systems...

  12. Reliable Recovery of Piled Box-like Objects via Parabolically Deformable Superquadrics

    E-Print Network [OSTI]

    and generic depalletizing systems stems pri- marily from the car and food industries. Such systems and piled box-like objects. A vacuum gripper is used for grasping the objects from their exposed surfaces

  13. Giant Impacts on Earth-like Worlds

    E-Print Network [OSTI]

    Quintana, Elisa V; Borucki, William; Rowe, Jason F; Chambers, John E

    2015-01-01

    The late stages of terrestrial planet formation are dominated by giant impacts that collectively influence the growth, dynamical stability, composition and habitability of any planets that form. Hitherto, numerical models designed to explore these late stage collisions have been limited in two major ways. First, nearly all N-body models have assumed that two-body collisions lead to perfect accretion. Second, many of these studies lack the large number of realizations needed to account for the chaotic nature of these N-body systems. In this article we perform hundreds of simulations of late stage terrestrial planet formation using an N-body algorithm that includes fragmentation and hit-and-run collisions. We performed 140 simulations of planet accretion around a Sun-like star with Jupiter and Saturn analogs with and without this new collision model. We find that when fragmentation is included, the final planets formed are similar to those formed in the perfect-accretion model in terms of mass and number, howev...

  14. 1 Jordan Systems of Martindale-like Quotients

    E-Print Network [OSTI]

    Ciencia y Tecnolog'ia, BFM2001-19* *38-C02-02. 2 Partially supported by the Ministerio de Ciencia y Tecnolog'ia, BFM2001-19* *38-C02-01, and the Junta de Andaluc'ia FQM264. #12

  15. Plasma deposited diamond-like carbon films for large neutralarrays

    SciTech Connect (OSTI)

    Brown, I.G.; Blakely, E.A.; Bjornstad, K.A.; Galvin, J.E.; Monteiro, O.R.; Sangyuenyongpipat, S.

    2004-07-15

    To understand how large systems of neurons communicate, we need to develop methods for growing patterned networks of large numbers of neurons. We have found that diamond-like carbon thin films formed by energetic deposition from a filtered vacuum arc carbon plasma can serve as ''neuron friendly'' substrates for the growth of large neural arrays. Lithographic masks can be used to form patterns of diamond-like carbon, and regions of selective neuronal attachment can form patterned neural arrays. In the work described here, we used glass microscope slides as substrates on which diamond-like carbon was deposited. PC-12 rat neurons were then cultured on the treated substrates and cell growth monitored. Neuron growth showed excellent contrast, with prolific growth on the treated surfaces and very low growth on the untreated surfaces. Here we describe the vacuum arc plasma deposition technique employed, and summarize results demonstrating that the approach can be used to form large patterns of neurons.

  16. What does water look like? Marta Kryven

    E-Print Network [OSTI]

    Waterloo, University of

    is shallow and pure it is transparent. Deep water is a saturated blue-green colour [Pope and Fry 1997]. MuddyWhat does water look like? Marta Kryven William Cowan University of Waterloo (a) (b) (c) (d) (e) (f of water look like water? We conducted four psychophysical experiments to isolate perceptual qualities

  17. Finsler-like structures from Lorentz-breaking classical particles

    E-Print Network [OSTI]

    Neil Russell

    2015-01-11

    A method is presented for deducing classical point-particle Lagrange functions corresponding to a class of quartic dispersion relations. Applying this to particles violating Lorentz symmetry in the minimal Standard-Model Extension leads to a variety of novel lagrangians in flat spacetime. Morphisms in these classical systems are studied that echo invariance under field redefinitions in the quantized theory. The Lagrange functions found offer new possibilities for understanding Lorentz-breaking effects by exploring parallels with Finsler-like geometries.

  18. Pulse-like and crack-like ruptures in experiments mimicking crustal earthquakes

    E-Print Network [OSTI]

    Lapusta, Nadia

    Pulse-like and crack-like ruptures in experiments mimicking crustal earthquakes Xiao Lu , Nadia ruptures may propagate in a self-healing pulse-like mode. A number of expla- nations for the existence of slip pulses have been proposed and continue to be vigorously debated. This study presents experimen

  19. Indirect signatures for axion(-like) particles

    E-Print Network [OSTI]

    K. Zioutas; K. Dennerl; M. Grande; D. H. H. Hoffmann; J. Huovelin; B. Lakic; S. Orlando; A. Ortiz; Th. Papaevangelou; Y. Semertzidis; Sp. Tzamarias; O. Vilhu

    2006-03-18

    Magnetic field dependent transient solar observations are suggestive for axion-photon oscillations with light axion(-like) particle involvement. Novel dark-moon measurements with the SMART X-ray detectors can be conclusive for radiatively decaying massive exotica like the generic solar Kaluza-Klein axions. Furthermore, the predicted intrinsic strong solar magnetic fields could be the reason of enhanced low energy axion production. Such an axion component could be the as yet unknown origin of the strong quiet Sun X-ray luminosity at energies below 1 keV. Solar axion telescopes should lower their threshold, aiming to copy processes that might occur near the solar surface, be it due to spontaneous or magnetically induced radiative decay of axion(-like) particles. This is motivated also by the recent claim of an axion-like particle detection by the laser experiment PVLAS.

  20. 'Like cupcakes melting in the sun...' /

    E-Print Network [OSTI]

    Skaller, Philip Emmanuel; Skaller, Philip Emmanuel.

    2014-01-01

    cupcakes melting in the sun’ A Dissertation submitted incupcakes melting in the sun’ by Philip Emmanuel SkallerLike cupcakes melting in the sun ’ was a performance of 7

  1. Onsite Wastewater Treatment Systems: Spray Distribution System 

    E-Print Network [OSTI]

    Lesikar, Bruce J.

    2008-10-23

    Spray distribution systems for wastewater are much like lawn sprinkler systems, in that they spray treated wastewater over the surface of a yard. This publication explains how spray distribution systems work, what their design requirements are...

  2. Stormwater Runoff Treats Our Streams Like Sewers State of the Nation's River 2008

    E-Print Network [OSTI]

    Lawrence, Deborah

    Stormwater Runoff Treats Our Streams Like Sewers State of the Nation's River 2008 POTOMAC. The result? Waterways that function more as sewers than as natural streams. For example, fecal coliform is the overflow from combined stormwater sewer systems. Altho

  3. Design of human-like posture prediction for inverse kinematic posture control of a humanoid robot

    E-Print Network [OSTI]

    Thomann, Derik (Derik S.)

    2005-01-01

    A method and system has been developed to solve the kinematic redundancy for a humanoid redundant manipulator based on forward kinematic equation and the optimization of human-like constraints. The Multiple Objective ...

  4. What is the Ocean Like off Oregon?

    E-Print Network [OSTI]

    Kurapov, Alexander

    meters. The sampling grid was reminiscent of the more ambitious CalCOFI survey grid off California, begunWhat is the Ocean Like off Oregon? Exploring, Monitoring, and Understanding the Northern California g o 76 Introduction The dynamic, ever-changing ocean off Oregon is home to a rich, productive

  5. Method and apparatus for making diamond-like carbon films

    DOE Patents [OSTI]

    Pern, Fu-Jann (Golden, CO); Touryan, Kenell J. (Indian Hills, CO); Panosyan, Zhozef Retevos (Yerevan, AM); Gippius, Aleksey Alekseyevich (Moscow, RU)

    2008-12-02

    Ion-assisted plasma enhanced deposition of diamond-like carbon (DLC) films on the surface of photovoltaic solar cells is accomplished with a method and apparatus for controlling ion energy. The quality of DLC layers is fine-tuned by a properly biased system of special electrodes and by exact control of the feed gas mixture compositions. Uniform (with degree of non-uniformity of optical parameters less than 5%) large area (more than 110 cm.sup.2) DLC films with optical parameters varied within the given range and with stability against harmful effects of the environment are achieved.

  6. Critical-like Features of Stress Response in Frictional Packings

    E-Print Network [OSTI]

    Abdullah Cakir; Leonardo E. Silbert

    2015-02-25

    The mechanical response of static, unconfined, overcompressed face centred cubic, granular arrays is studied using large-scale, discrete element method simulations. Specifically, the stress response due to the application of a localised force perturbation - the Green function technique - is obtained in granular packings generated over several orders of magnitude in both the particle friction coefficient and the applied forcing. We observe crossover behaviour in the mechanical state of the system characterised by the changing nature of the resulting stress response. The transition between anisotropic and isotropic stress response exhibits critical-like features through the identification of a diverging length scale that distinguishes the spatial extent of anisotropic regions from those that display isotropic behaviour. A multidimensional phase diagram is constructed that parameterises the response of the system due to changing friction and force perturbations.

  7. National Competition - EERE Commercialization Office

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

    our society relies on, to expanding the capabilities of electric vehicles. SiNode's lithium battery anode technology addresses the two aspects of battery improvement, energy...

  8. Northwestern University Team Wins 2013 National Clean Energy...

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

    electric vehicles. SiNode's lithium battery anode technology addresses the two aspects of battery improvement -- energy capacity and power density. The technology provides up to a...

  9. Balmer-Like Series for Baryon Resonances

    E-Print Network [OSTI]

    Losanow-Kirchbach, M

    1998-01-01

    The pole positions of various baryon resonances have been found to reveal a well pronounced clustering, the so-called H"ohler cluster. In a previous work, the H"ohler clusters have been shown to be identical to Lorentz multiplets of the type (1/2+l', 1/2+l')*[(1/2,0)+(0,1/2)] with l' integer. Here we show that the cluster positions are well described by means of a Balmer-series like recursive mass formula.

  10. Supersymmetry and Vector-like Extra Generation

    E-Print Network [OSTI]

    Chun Liu

    2009-07-17

    Within the framework of supersymmetry, the particle content is extended in a way that each Higgs doublet is in a full generation. Namely in addition to ordinary three generations, there is an extra vector-like generation, and it is the extra slepton SU(2)_L doublets that are taken to be the two Higgs doublets. R-parity violating interactions contain ordinary Yukawa interactions. Breaking of supersymmetry and gauge symmetry are analyzed. Fermion and boson spectra are calculated. Phenomenological constraints and relevant new physics at Large Hadron Collider are discussed.

  11. Template:FacebookLike | 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., 2013) | Open EnergyDBpediaValue JumpFacebookLike Jump to: navigation,

  12. Polymer-like Nanowires | 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 WebQuantityBonneville Power Administration wouldMass mapSpeeding access|Post-Polymerization Modifications - Energy InnovationPolymer-like

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

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

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

  14. Cost-Effectiveness Tests and Measuring Like a Utility | Department...

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

    Cost-Effectiveness Tests and Measuring Like a Utility Cost-Effectiveness Tests and Measuring Like a Utility Better Buildings Residential Data and Evaluation Peer Exchange Call...

  15. Glass-like thermal conductivity in high efficiency thermoelectric...

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

    Glass-like thermal conductivity in high efficiency thermoelectric materials Glass-like thermal conductivity in high efficiency thermoelectric materials Discusses strategies to...

  16. Android as a Telecommunication Medium with a Human-like Presence

    E-Print Network [OSTI]

    Kanda, Takayuki

    Android as a Telecommunication Medium with a Human-like Presence Daisuke Sakamoto1&2 , Takayuki, we realize human telepresence by developing a remote-controlled android system called Geminoid HI-1 the android than when he appeared on a video monitor in a video conference system. In addition, participants

  17. Applicative Notions in ML-like Programs 

    E-Print Network [OSTI]

    Ling, Budi H

    Pure functional languages are expressive tools for writing modular and reliable code. State in programming languages is a useful tool for programming dynamic systems. However, their combination yields programming languages that are difficult...

  18. Apparatus for insulating windows and the like

    DOE Patents [OSTI]

    Mitchell, Robert A. (R.D. #1, Box 462-A, Voorheesville, NY 12186)

    1984-01-01

    Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in "kit" form.

  19. Apparatus for insulating windows and the like

    DOE Patents [OSTI]

    Mitchell, R.A.

    1984-06-19

    Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in kit'' form. 11 figs.

  20. MITCHEL RESNICK THINKING LIKE A TREE

    E-Print Network [OSTI]

    Resnick, Mitchel

    problems, coordinating communications systems. In the 1940s and 1950s, the field of cybernetics aimed, and technological (Wiener, 1948; von Foerster, Mead and Teuber, 1949). The field attracted engineers, biologists, psychologists, anthropologists, all aiming to forge connections among their disciplines. Cybernetics never

  1. Likely social impacts of proposed national-level policy initiatives

    SciTech Connect (OSTI)

    Piernot, C.A.; Rothweiler, M.A.; Levine, A.; Crews, R.

    1981-03-01

    The results are described of an investigation of likely social effects of enacting nine proposed national-level policy initiatives to accelerate development and use of solar energy. This study is part of the Technology Assessment of Solar Energy Systems (TASE) project supported by the US Department of Energy. The report presents general social impact information about the variety of ways in which the American people could be affected by enactment of these initiatives. It identifies the effects of each initiative on individuals, groups, organizations, communities, and society as a whole. In addition, it provides a framework for organizing a myriad of impact information into a set of conceptually exclusive impact categories. It illustrates that social impacts means effects on people as individuals, groups, organizations, and communities as well as on the infrastructure of society. Finally, it demonstrates the importance of specifying an audience of impact with a case example from the residential rental market.

  2. Resonance-like nuclear processes in solids: 3rd and 4th order processes

    E-Print Network [OSTI]

    Péter Kálmán; Tamás Keszthelyi

    2013-03-06

    It is recognized that in the family of heavy charged particle and electron assisted double nuclear processes resonance-like behavior can appear. The transition rates of the heavy particle assisted 3rd-order and electron assisted 4th-order resonance like double nuclear processes are determined. The power of low energy nuclear reactions in $Ni-H$ systems formed in $Ni$ placed in $H_{2}$ gas environment is treated. Nuclear power produced by quasi-resonant electron assisted double nuclear processes in these $Ni-H$ systems is calculated. The power obtained tallies with experiments and its magnitude is considerable for practical applications.

  3. Role of the upper ocean structure in the response of ENSO-like SST variability to global warming

    E-Print Network [OSTI]

    Noh, Yign

    Role of the upper ocean structure in the response of ENSO-like SST variability to global warming)-like variability to global warming varies comparatively between the two different climate system models, i are reduced in the eastern equatorial Pacific under global warming, which erodes the thermo- cline feedback

  4. New formulas for Stirling-like numbers and Dobinski-like formulas

    E-Print Network [OSTI]

    Kwasniewski, A K

    2008-01-01

    Extensions of the $Stirling$ numbers of the second kind and $Dobinski$ -like formulas are proposed in a series of exercises for graduates. Some of these new formulas recently discovered by me are to be found in the source paper $ [1]$. These extensions naturally encompass the well known $q$- extensions. The indicatory references are to point at a part of the vast domain of the foundations of computer science in arxiv affiliation.

  5. Memristor comprising film with comb-like structure of nanocolumns...

    Office of Scientific and Technical Information (OSTI)

    film with comb-like structure of nanocolumns of metal oxide embedded in a metal oxide matrix Citation Details In-Document Search Title: Memristor comprising film with comb-like...

  6. Promise for Onion-Like Carbons as Supercapacitors

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

    Promise for Onion-Like Carbons as Supercapacitors Promise for Onion-Like Carbons as Supercapacitors JiangCummingsCoverLarge.gif Some of the capacitance and geometry effects...

  7. Energy Levels Of Hydrogen-Like Atomsand Fundamental Constants

    E-Print Network [OSTI]

    Valeri V. Dvoeglazov; Rudolf N. Faustov; Yuri N. Tyukhtyaev

    1994-03-27

    The present review includes the description of theoretical methods for the investigations of the spectra of hydrogen-like systems. Various versions of the quasipotential approach and the method of the effective Dirac equation are considered. The new methods, which have been developed in the eighties, are described. These are the method for the investigation of the spectra by means of the quasipotential equation with the relativistic reduced mass and the method for a selection of the logarithmic corrections by means of the renormalization group equation. The special attention is given to the construction of a perturbation theory and the selection of graphs, whereof the contributions of different orders of $\\alpha$, the fine structure constant, to the energy of the fine and hyperfine splitting in a positronium, a muonium and a hydrogen atom could be calculated. In the second part of this article the comparison of the experimental results and the theoretical results concerning the wide range of topics is produced. They are the fine and hyperfine splitting in the hydrogenic systems, the Lamb shift and the anomalous magnetic moments of an electron and a muon. Also, the problem of the precision determination of a numerical value of the fine structure constant, connected with the above topics, is discussed.

  8. June 23, 2009 RAMSEY-LIKE CARDINALS II

    E-Print Network [OSTI]

    Welch, Philip

    June 23, 2009 RAMSEY-LIKE CARDINALS II VICTORIA GITMAN AND PHILIP WELCH Abstract. This paper continues the study of the Ramsey-like large cardinals introduced in [Git09] and [WS08]. Ramsey-like cardinals are defined by gener- alizing the "existence of elementary embeddings" characterization of Ramsey

  9. Chemical composition of Earth-like planets

    E-Print Network [OSTI]

    Ronco, M P; Marboeuf, U; Alibert, Y; de Elía, G C; Guilera, O M

    2015-01-01

    Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a low-mass protoplanetary disk around a solar-type star. We incorporate this sequence of chemical elements (refractory and volatile elements) in our semi-analytical model of planet formation which calculates the formation of a planetary system during its gaseous phase. The results of the semi-analytical model (final distributions of embryos and planetesimals) are used as initial conditions to develope N-body simulations that compute the post-oligarchic formation of terrestrial-type planets. The results of our simulations show that the chemical composition of the planets that remain in the habitable zone has similar characteristics to the chemical composition of the Earth. However, exist differences that can be associated to the dynamical environment in which they were formed.

  10. Studies of Intermittency-like Phenomena in Plasma turbulence at IPR

    SciTech Connect (OSTI)

    Jha, R.; Das, A.; Bisai, N.; Kaw, P. [Institute for Plasma Research, Bhat, Near Indira Bridge, Gandhinagar-382428 (India)

    2010-11-23

    The observation of intermittency in the turbulent scrape-off layer plasma of ADITYA tokamak was first reported about one and a half decade ago. In the last decade or so, several aspects of intermittency-like phenomena have been observed on tokamaks and other fusion devices throughout the world. A review of the research carried out at the Institute for Plasma Research (IPR) is presented, which closely follow the research trend on intermittency-like phenomena in plasmas worldwide. We also present our analysis of particle flux data in order to test the recently proposed fluctuation theorem, which states that the probability of 'entropy consuming' flux events falls off exponentially with the averaging time. This theorem, proposed in the context of small systems, is applied to macroscopic system like tokamak edge plasma by invoking an 'effective temperature' of the bath of drift waves from which, plasma objects take energy and carry out work of transporting matter

  11. Mission Operations & Data Systems

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Mission Operations & Data Systems The LASP Mission Operations & Data Systems (MO&DS) group staffs and instruments. Operational software acts like the health systems in a body, ensuring that temperature, energy. The software monitors the health of on-board systems; anything unusual is flagged and sent to mission operators

  12. Neurocomputing 70 (2007) 26922700 Inter-spike-intervals analysis of AER Poisson-like generator hardware

    E-Print Network [OSTI]

    Barranco, Bernabe Linares

    2007-01-01

    Neurocomputing 70 (2007) 2692­2700 Inter-spike-intervals analysis of AER Poisson-like generator Sevilla, Spain Available online 10 May 2007 Abstract Address­Event­Representation (AER) is a communication). In developing AER-based systems it is very convenient to have available some means of generating AER streams

  13. On models for viscoelastic fluid-like materials that are mechanically incompressible and

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    On models for viscoelastic fluid-like materials that are mechanically incompressible and thermally of the full Navier­Stokes­Fourier system. J. Math. Fluid Mech., 11:274­302, 2009 Mechanically incompressible;Viscoelastic fluids ­ Maxwell model F l lsld µm m Mechanical analogue: Spring ­ energy storage. Dashpot

  14. I would like all figures in my article published in Black and White Education in Brazil

    E-Print Network [OSTI]

    Barbosa, Marcia C. B.

    I would like all figures in my article published in Black and White Education in Brazil: Marcia C Postal 15051 91501970, Porto Alegre, RS, Brazil marcia. barbosa@ufrgs.br Keywords Gender, Physics, Brazil Abstract An overview of the Brazilian educational system is presented with the main

  15. Further Evidences for Spin Glass like behavior in NiO nanoparticles

    E-Print Network [OSTI]

    S. D. Tiwari; K. P. Rajeev

    2004-08-26

    Nickel oxide nanoparticles are prepared by a sol gel method and characterized by x-ray diffraction and transmission electron microscope. Here we present measurements on temperature and field dependence of magnetization and time dependence of thermoremanent magnetization. Our conclusion based on these measurements is that the system shows spin glass like behavior.

  16. Adding an energy-like conservation law to the leapfrog integrator

    E-Print Network [OSTI]

    A. C. Maggs

    2013-01-09

    The leapfrog integrator is widely used because of its excellent stability in molecular dynamics simulation. This is recognized as being due to the existence of a discrete variational structure of the equations. We introduce a modified leapfrog method which includes an additional energy-like conservation law by embedding a molecular dynamics simulation within a larger dynamical system.

  17. The Hidden Flat Like Universe: Starobinsky-like inflation induced by f(T) gravity

    E-Print Network [OSTI]

    W. El Hanafy; G. G. L. Nashed

    2015-06-02

    We study a single fluid component in a flat like universe (FLU) governed by $f(T)$ gravity theories, where $T$ is the teleparallel torsion scalar. The FLU model, regardless the value of the spatial curvature $k$, identifies a special class of $f(T)$ gravity theories. Remarkably, the FLU $f(T)$ gravity does not reduce to teleparallel gravity theory. In large Hubble spacetime the theory is consistent with the inflationary universe scenario and respects the conservation principle. The equation of state (EoS) evolves similarly in all models $k=0, \\pm 1$. We study the case when the torsion tensor is made of a scalar field, which enables to derive a quintessence potential from the obtained $f(T)$ gravity theory. The potential produces Starobinsky-like model naturally without using a conformal transformation, with higher orders continuously interpolate between Starobinsky and quadratic inflation models. The slow-roll analysis shows double solutions so that for a single value of the scalar tilt (spectral index) $n_{s}$ the theory can predict double tensor-to-scalar ratios $r$ of $E$-mode and $B$-mode polarizations.

  18. Developmental approaches to in vitro engineering of kidney -like tissues

    E-Print Network [OSTI]

    Rosines, Eran

    2008-01-01

    WD – Wolffian duct MEMS – Microelectromechanical systems xviand microelectromechanical systems (MEMS) techniques areDevices Microelectromechanical systems (MEMS) are being use

  19. PLANETESIMALS IN DEBRIS DISKS OF SUN-LIKE STARS

    SciTech Connect (OSTI)

    Shannon, Andrew; Wu Yanqin

    2011-09-20

    Observations of dusty debris disks can be used to test theories of planetesimal coagulation. Planetesimals of sizes up to a couple of thousand kilometers are embedded in these disks and their mutual collisions generate the small dust grains that are observed. The dust luminosities, when combined with information on the dust spatial extent and the system age, can be used to infer initial masses in the planetesimal belts. Carrying out such a procedure for a sample of debris disks around Sun-like stars, we reach the following two conclusions. First, if we assume that colliding planetesimals satisfy a primordial size spectrum of the form dn/ds{proportional_to}s{sup -q}, observed disks strongly favor a value of q between 3.5 and 4, while both current theoretical expectations and statistics of Kuiper belt objects favor a somewhat larger value. Second, number densities of planetesimals are two to three orders of magnitude higher in detected disks than in the Kuiper belt, for comparably sized objects. This is a surprise for the coagulation models. It would require a similar increase in the disk surface density over that of the Minimum Mass Solar Nebula, which is unreasonable. Both of our conclusions are driven by the need to explain the presence of bright debris disks at a few gigayears of age.

  20. Water-Like Properties of Soft Nanoparticle Suspensions | Advanced...

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

    | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Water-Like Properties of Soft Nanoparticle Suspensions November 25, 2013 Bookmark and Share...

  1. Chaotic physics in ferroelectrics hints at brain-like computing...

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

    Morgan McCorkle Oak Ridge National Laboratory 865-574-7308 Chaotic physics in ferroelectrics hints at brain-like computing Unexpected behavior in ferroelectric materials explored...

  2. Cost-Effectiveness Tests and Measuring Like a Utility | Department...

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

    Data and Evaluation Peer Exchange Call Series: Cost-Effectiveness Tests and Measuring Like a Utility, April 10, 2014. Call Slides and Discussion Summary More Documents &...

  3. Hydrodynamic interactions in metal rod-like particle suspensions...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Hydrodynamic interactions in metal rod-like particle suspensions due to induced charge electroosmosis Citation Details In-Document Search Title: Hydrodynamic...

  4. Emergent comet-like swarming of optically driven thermally active colloids

    E-Print Network [OSTI]

    Jack A. Cohen; Ramin Golestanian

    2013-09-12

    We propose a simple system of optically driven colloids that convert light into heat and move in response to self- and collectively- generated thermal gradients. We show that the system exhibits self-organization into a moving comet-like swarm and characterize the structure and response of the swarm to a light intensity dependent external tuning parameter. We observe many interesting features in this nonequilibrium system including circulation and evaporation, intensity-dependent shape, density and temperature fluctuations, and ejection of hot colloids from the swarm tip.

  5. Global Warming as a Detectable Thermodynamic Marker of Earth-like Extrasolar Civilizations: The Case for a Telescope like

    E-Print Network [OSTI]

    Berdyugina, Svetlana

    1 Global Warming as a Detectable Thermodynamic Marker of Earth-like Extrasolar Civilizations also have broad social implications. Keywords: extraterrestrial civilizations, global warming

  6. Think Python How to Think Like a Computer Scientist

    E-Print Network [OSTI]

    Borenstein, Elhanan

    to Think Like a Computer Scientist Version 1.1.21 Allen Downey Green Tea Press Needham, Massachusetts #12: Major revision, changed title to Think Python: How to Think Like a Computer Scientist. Green Tea Press 9- umentation License. As Green Tea Press, I published the book and started selling hard copies through Amazon

  7. Compositional Compilation for Java-like Languages through Polymorphic Bytecode

    E-Print Network [OSTI]

    Robbiano, Lorenzo

    Compositional Compilation for Java-like Languages through Polymorphic Bytecode extended version Dodecaneso, 35 16146 Genova, Italy zucca@disi.unige.it ABSTRACT We define compositional compilation compositional compilation is a highly desirable feature, in Java-like languages it can hardly be achieved

  8. Cloning and expression of autogenes encoding RNA polymerases of T7-like bacteriophages

    DOE Patents [OSTI]

    Studier, F.W.; Dubendorff, J.W.

    1998-10-20

    This invention relates to the cloning and expression of autogenes encoding RNA polymerases of T7 and T7-like bacteriophages, in which the RNA polymerase gene is transcribed from a promoter which is recognized by the encoded RNA polymerase. Cloning of T7 autogenes was achieved by reducing the activity of the RNA polymerase sufficiently to permit host cell growth. T7 RNA polymerase activity was controlled by combining two independent methods: lac-repression of the recombinant lac operator-T7 promoter in the autogene and inhibition of the polymerase by T7 lysozyme. Expression systems for producing the RNA polymerases of T7 and other T7-like bacteriophages, and expression systems for producing selected gene products are described, as well as other related materials and methods. 12 figs.

  9. Cloning and expression of autogenes encoding RNA polymerases of T7-like bacteriophages

    DOE Patents [OSTI]

    Studier, F.W.; Dubendorff, J.W.

    1998-11-03

    This invention relates to the cloning and expression of autogenes encoding RNA polymerases of T7 and T7-like bacteriophages, in which the RNA polymerase gene is transcribed from a promoter which is recognized by the encoded RNA polymerase. Cloning of T7 autogenes was achieved by reducing the activity of the RNA polymerase sufficiently to permit host cell growth. T7 RNA polymerase activity was controlled by combining two independent methods: lac-repression of the recombinant lac operator-T7 promoter in the autogene and inhibition of the polymerase by T7 lysozyme. Expression systems for producing the RNA polymerases of T7 and other T7-like bacteriophages, and expression systems for producing selected gene products are described, as well as other related materials and methods. 12 figs.

  10. A geometric approach to quantum control in a classical-like framework

    E-Print Network [OSTI]

    Davide Pastorello

    2015-08-28

    A quantum theory in a finite-dimensional Hilbert space can be formulated as a proper Hamiltonian theory as explained in [2, 3, 7, 8]. From this point of view a quantum system can be described in a classical-like framework where quantum dynamics is represented by a Hamiltonian flow in the phase space given by Hilbert projective space. This paper is devoted to investigate how the notion of accessibility algebra from classical control theory can be applied within geometric classical-like formulation of Quanum Mechanics to study controllability of a quantum system in order to state the following conjecture: Under certain conditions, classical control theory provides a machinery which can be directly applied in quantum control within the geometric Hamiltonian picture.

  11. PUTTING THE HUMAN FACTOR INTO SYSTEMS DEVELOPMENT Ben Shneiderman

    E-Print Network [OSTI]

    Shneiderman, Ben

    in interactive systems, but these four related approaches may be useful: - Create like an inspired inventor of this paper. Create like a__n inspired inventor The absence of firm guidelines for interactive systems design

  12. Soft x-ray laser using pumping of 3p and 4p levels of He-like and H-like ions

    DOE Patents [OSTI]

    Hagelstein, P.L.

    1985-07-05

    X-ray laser method and apparatus for producing coherent radiation at, for example, energies of at least 40 eV, using Be-like Cr, N-like Ni, He-like Na, B-like Cr, Be-like Mn or similar multiply ionized species to pump appropriate high energy transitions in He-like or H-like N, O, F, C or rare gases, with associated laser transition gains of 4 to 50 cm/sup -1/.

  13. Soft X-ray laser using pumping of 3P and 4P levels of He-like and H-like ions

    DOE Patents [OSTI]

    Hagelstein, Peter L. (Livermore, CA)

    1987-01-01

    X-ray laser method and apparatus for producing coherent radiation at, for example, energies of at least 40 eV, using Be-like Cr, N-like Ni, He-like Na, B-like Cr, Be-like Mn or similar multiply ionized species to pump appropriate high energy transitions in He-like or H-like N, O, F, C or rare gases, with associated laser transition gains of 4-50 cm.sup.-1.

  14. New tools, like a flexible suturing device, have made endoscopically-

    E-Print Network [OSTI]

    Ford, James

    to freeze them in a technique called cryotherapy. She followed that a few weeks later with ra- diofrequency what would have happened if it hadn't been for that piece of meat get- ting stuck." Having a place like

  15. IDENTIFYING CURRENT-SHEET–LIKE STRUCTURES IN THE SOLAR WIND

    E-Print Network [OSTI]

    Li, Gang

    2008-01-01

    Barish, F. D. 1974, in Solar Wind Three, ed. C. T. Russell (in AIP Conf. Proc. 471, Solar Wind Nine, ed. S. R. Habbal (SHEET–LIKE STRUCTURES IN THE SOLAR WIND G. Li Space Science

  16. Ricotta's Recipe for Success... Entrepreneurs can be measured like

    E-Print Network [OSTI]

    Salvaggio, Carl

    1 Ricotta's Recipe for Success... Entrepreneurs can be measured like a recipe for success. Take with pride, passion and perseverance. Boil the recipe down and you have the essence of an entrepreneur: fully

  17. Paraneoplastic plaque-like cutaneous mucinosis: a case report

    E-Print Network [OSTI]

    Owen, Joshua L; Word, Andrew P; Vandergriff, Travis; Desai, Seemal R

    2015-01-01

    like cutaneous mucinosis: a case report Joshua L. Owen, BS,have an associated malignancy. We report a 72-year-old mancutaneous mucinosis: case report and literature review. Am J

  18. Life-Like Characters. Tools, Affective Functions, and Applications 

    E-Print Network [OSTI]

    Kawamoto, Shin ichi; Shimodaira, Hiroshi; Nitta, Tsuneo; Nishimoto, Takuya; Nakamura, Satoshi; Itou, Katsunobu; Morishima, Shigeo; Yotsukura, Tatsuo; Kai, Atsuhiko; Lee, Akinobu; Yamashita, Yoichi; Kobayashi, Takao; Tokuda, Keiichi; Hirose, Keikichi; Minematsu, Nobuaki; Yamada, Atsushi; Den, Yasuharu; Utsuro, Takehito; Sagayama, Shigeki

    2003-01-01

    Galatea is a software toolkit to develop a human-like spoken dialog agent. In order to easily integrate the modules of different characteristics including speech recognizer, speech synthesizer, facial animation synthesizer[ ...

  19. Analysis of a New Variational Model to Restore Point-Like and Curve-Like Singularities in Imaging

    SciTech Connect (OSTI)

    Aubert, Gilles; Blanc-Feraud, Laure Graziani, Daniele

    2013-02-15

    The paper is concerned with the analysis of a new variational model to restore point-like and curve-like singularities in biological images. To this aim we investigate the variational properties of a suitable energy which governs these pathologies. Finally in order to realize numerical experiments we minimize, in the discrete setting, a regularized version of this functional by fast descent gradient scheme.

  20. Synthesis of flower-like Boehmite (AlOOH) via a simple solvothermal process without surfactant

    SciTech Connect (OSTI)

    Li, Guangci; Liu, Yunqi; Liu, Di; Liu, Lihua; Liu, Chenguang

    2010-10-15

    Boehmite (AlOOH) with hierarchical flower-like structures was synthesized by the solvothermal reaction of AlCl{sub 3}.6H{sub 2}O in the presence of ethanol and toluene at 200 {sup o}C for 24 h. The product was characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show that boehmite with flower-like nanostructures, which aggregated together by the weak hydrogen bonds, was formed through dissolution-deposition process of boehmite microcrystals and the toluene has a great effect on the morphology of product in the reaction system. Meanwhile, the {gamma}-Al{sub 2}O{sub 3} was also obtained by calcination of above product at 500 {sup o}C for 2 h, and the flower-like morphology kept no change. The surface area of {gamma}-Al{sub 2}O{sub 3} powder was determined to be 166.8 m{sup 2}/g by N{sub 2} adsorption measurement. The possible formation mechanism of flower-like boehmite nanostructures was proposed and discussed.

  1. A Study of Snake-like Locomotion Through the Analysis of a Flexible Robot Model

    E-Print Network [OSTI]

    Giancarlo Cicconofri; Antonio DeSimone

    2014-09-13

    We examine the problem of snake-like locomotion by studying a system consisting of a planar inextensible elastic rod that is able to control its spontaneous curvature. Using a Cosserat model we derive, through variational principles, the equations of motion for two special cases: one in which the system is confined inside a frictionless channel, and one in which it is placed in an anisotropic frictional environment, modeling the dynamical setting of the slithering of snakes on flat surfaces. The presence of constraints in both cases leads to non-standard boundary conditions, that allow us to close the equations of motion reducing them to a differential and an integro-differential equation, respectively, for one end point (the tail) of the active rod. For the snake-like case we also provide analytic solutions for a special class of motions. We highlight the role of the spontaneous curvature in the pushing (and the steering, in the snake-like setting) needed to power locomotion. Comparisons with available experiments confirm that the model is able to capture many of the essential findings in the zoological literature. The complete solvability and the existence of analytic solutions offers a tool that may prove valuable for the design of bio-inspired soft robots.

  2. Dynamical Heating Induced by Dwarf Planets on Cold Kuiper Belt-like Debris Disks

    E-Print Network [OSTI]

    Muñoz-Gutiérrez, Marco A; Reyes-Ruiz, Mauricio; Peimbert, Antonio

    2015-01-01

    With the use of long-term numerical simulations, we study the evolution and orbital behavior of cometary nuclei in cold Kuiper belt-like debris disks under the gravitational influence of dwarf planets (DPs); we carry out these simulations with and without the presence of a Neptune-like giant planet. This exploratory study shows that in the absence of a giant planet, 10 DPs are enough to induce strong radial and vertical heating on the orbits of belt particles. On the other hand, the presence of a giant planet close to the debris disk, acts as a stability agent reducing the radial and vertical heating. With enough DPs, even in the presence of a Neptune-like giant planet some radial heating remains; this heating grows steadily, re-filling resonances otherwise empty of cometary nuclei. Specifically for the solar system, this secular process seems to be able to provide material that, through resonant chaotic diffusion, increase the rate of new comets spiraling into the inner planetary system, but only if more tha...

  3. A unified Fano-like interference picture for charmonium-like states $Y(4008)$, $Y(4260)$ and $Y(4360)$

    E-Print Network [OSTI]

    Chen, Dian-Yong; Li, Xue-Qian; Ke, Hong-Wei

    2015-01-01

    We propose that the unified Fano-like interference picture applies to $e^+e^-\\to \\pi^+\\pi^- J/\\psi$ and $e^+e^-\\to \\pi^+\\pi^- \\psi(3686)$, where $Y(4260)$ and $Y(4360)$ are observed, respectively, to provide a reasonable interpretation of the asymmetric lineshapes of $Y(4260)$ and $Y(4360)$ structures. Moreover, the Fano-like interference induces an extra broad structure $Y(4008)$ in $e^+e^-\\to \\pi^+\\pi^- J/\\psi$ as a companion peak to $Y(4260)$. Three charmonium-like states $Y(4008)$, $Y(4260)$ and $Y(4360)$ observed in $e^+e^-$ annihilation processes are not genuine resonances. Under this scenario, it is well explained why $Y(4008)$, $Y(4260)$ and $Y(4360)$ are absent in the experimental data of the $R$ value scan and missing in open-charm decay channels. Although the present work presents the a typical application of the Fano-like interference in the particle physics at the lower energy region, we have reason to believe that the Fano-like phenomena may exist in other processes such as $e^+e^-\\to \\pi^+\\pi^-...

  4. Theoretical Treatment of the Thermophysical Properties of Fluids Containing Chain-like Molecules

    SciTech Connect (OSTI)

    Carol K. Hall

    2008-11-14

    This research program was designed to enhance our understanding of the behavior of fluids and fluid mixtures containing chain-like molecules. The original objective was to explain and predict the experimentally observed thermophysical properties, including phase equilibria and dynamics, of systems containing long flexible molecules ranging in length from alkanes to polymers. Over the years the objectives were expanded to include the treatment of molecules that were not chain-like. Molecular dynamics and Monte Carlo computer simulations were used to investigate how variations in molecular size, shape and architecture influence the types of phase equilibria, thermodynamic properties, structure and surface interactions that are observed experimentally. The molecular insights and theories resulting from this program could eventually serve as the foundation upon which to build correlations of the properties of fluids that are both directly and indirectly related to the Nation’s energy resources including: petroleum, natural gas, and polymer solutions, melts, blends, and materials.

  5. Three-Dimensional Doppler Images of the Disk-like and Stream-like States of U Coronae Borealis

    E-Print Network [OSTI]

    Michail Agafonov; Olga Sharova; Mercedes Richards

    2008-05-07

    The 3D Radioastronomical Approach to Doppler tomography has been used to study the H$\\alpha$ emission sources in U Coronae Borealis. These 3D tomograms provide greater resolution than the projected 2D version and highlight the jet-like gas flows in the $V_z$ direction transverse to the orbital plane. In this paper, the 3D tomograms are compared at two distinct epochs when U CrB was in the disk-like state (1993 data) and the stream-like state (1994 data). Both states display a prominent emission source, the circumprimary bulge, which is produced when the gas stream strikes the photosphere of the mass-gainer. This source is detected within $V_z$ = $\\pm$150 km s{$^{-1}$}, and demonstrates that the bulge is not confined to the orbital plane although it achieves maximum strength near $V_z$=0 km s{$^{-1}$}. Other emission sources include the stream-star and stream-disk shocks and a Localized Region (LR) where the circling disk material strikes the incoming gas stream. The LR has $V_z$ velocities of 200 to 500 km s{$^{-1}$} in the disk-like state. The disk emission is seen over a range of $V_z$ velocities, and there is evidence that the disk is inclined to the orbital plane or may have two arms. The gas stream flows along its predicted trajectory in the stream-like state, and a comparison with the disk-like state suggests that the gas stream has a higher density than the disk in both states of this binary.

  6. Lubricants under high local pressure: Liquids act like solids

    E-Print Network [OSTI]

    Mueser, Martin

    Lubricants under high local pressure: Liquids act like solids Schmierstoffe unter hohem lokalem Druck: Flu¨ ssigkeiten verhalten sich wie Fest- stoffe M. H. Mu¨ ser A lubricant layer solidifies when confining surfaces slide past each other induces flow in the lubricant layer that is akin of plastic flow

  7. Atmospheric Chemistry of Venus-like Exoplanets Laura Schaefer

    E-Print Network [OSTI]

    - 1 - Atmospheric Chemistry of Venus-like Exoplanets by Laura Schaefer and Bruce Fegley, Jr thermodynamic calculations to model atmospheric chemistry on terrestrial exoplanets that are hot enough for chemical equilibria between the atmosphere and lithosphere, as on Venus. The results of our calculations

  8. When Mice Consume Like Elephants: Instant Messaging Applications

    E-Print Network [OSTI]

    , which leads to high energy consumption. The exchange of a couple of text messages can consume as muchWhen Mice Consume Like Elephants: Instant Messaging Applications Ekhiotz Jon Vergara, Simon in the usage of instant messaging (IM) appli- cations on mobile devices has brought the energy efficiency

  9. Vibration dissipation mount for motors or the like

    DOE Patents [OSTI]

    Small, Thomas R. (Brookeville, MD)

    1987-01-01

    A vibration dissipation mount which permits the mounting of a motor, generator, or the like such that the rotatable shaft thereof passes through the mount and the mount permits the dissipation of self-induced and otherwise induced vibrations wherein the mount comprises a pair of plates having complementary concave and convex surfaces, a semi-resilient material being disposed therebetween.

  10. Creating Works-Like Prototypes of Mechanical Objects Bongjin Koo

    E-Print Network [OSTI]

    O'Brien, James F.

    of creating works-like prototypes. Designers are increasingly turning to 3D printing as a tool for fab Graphics]: Computational Ge- ometry and Object Modeling--Geometric algorithms. Keywords: fabrication, 3D printing, sketch-based modeling Links: DL PDF WEB VIDEO 1 Introduction Creating physical prototypes

  11. What Should Blog Search Look Like? Marti A. Hearst

    E-Print Network [OSTI]

    Dumais, Susan

    What Should Blog Search Look Like? Marti A. Hearst School of Information UC Berkeley Berkeley, CA@microsoft.com Susan T. Dumais Microsoft Research Redmond, WA, 98052 sdumais@microsoft.com ABSTRACT Blog search has- commodate the task of finding good blogs to read, especially with respect to matching a desired taste

  12. IMMEDIATE COMMUNICATION Air pollution impairs cognition, provokes depressive-like

    E-Print Network [OSTI]

    Nelson, Randy J.

    IMMEDIATE COMMUNICATION Air pollution impairs cognition, provokes depressive-like behaviors Institute, The Ohio State University, Columbus, OH, USA Particulate matter air pollution is a pervasive the effects of prolonged exposure to air pollution are well characterized with respect to pulmonary

  13. Yang-Mills like instantons in eight and seven dimensions

    E-Print Network [OSTI]

    E. K. Loginov; E. D. Loginova

    2014-10-10

    We consider a gauge theory in which a nonassociative Moufang loop takes the place of a structure group. We construct Belavin-Polyakov-Schwartz-Tyupkin (BPST) and t'Hooft like instanton solutions of the gauge theory in seven and eight dimensions.

  14. EVALUATION AND DESIGN OF PROCESSOR-LIKE RECONFIGURABLE ARCHITECTURES

    E-Print Network [OSTI]

    Ould Ahmedou, Mohameden

    of recon- figurable architectures is the Totem project [2]. The explo- ration is based on compiled netlists dissipation are estimated using such commercial tools. 3. ARCHITECTURE DESIGN To evaluate differentEVALUATION AND DESIGN OF PROCESSOR-LIKE RECONFIGURABLE ARCHITECTURES Tobias Oppold Department

  15. Alternative Experimental Protocol for a PBR-Like Result

    E-Print Network [OSTI]

    D. J. Miller

    2012-02-29

    Pusey, Barrett and Rudolph (PBR) have recently proven an important new theorem in the foundations of quantum mechanics. Here we propose alternative experimental protocols which lead to the PBR result for a special case and a weaker PBR-like result generally. Alternative experimental protocols support the assumption of measurement independence required for the PBR theorem.

  16. Interactive Animation of Cloth-like Objects in Virtual Reality

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interactive Animation of Cloth-like Objects in Virtual Reality Mark Meyer Caltech Gilles Debunne iMAGIS/IMAG Mathieu Desbrun USC/Caltech Alan H. Barr Caltech Abstract Modeling and animation of cloth has experienced to realistically drape objects or human characters in a fairly efficient way. However, real-time realistic

  17. Wireless Antennas -Making Wireless Communications Perform Like Wireline Communications

    E-Print Network [OSTI]

    Hua, Yingbo

    1 Wireless Antennas - Making Wireless Communications Perform Like Wireline Communications Yingbo first provide an overview of some of the latest developments in wireless communications using multiple of wireless antennas or wireless relays that are distributed between a source and a destination. We propose

  18. Binding-induced folding of prokaryotic ubiquitin-like protein on the mycobacterium proteasomal ATPase targets substrates for degradation

    SciTech Connect (OSTI)

    Wang, T.; Li, H.; Darwin, K. H.

    2010-11-01

    Mycobacterium tuberculosis uses a proteasome system that is analogous to the eukaryotic ubiquitin-proteasome pathway and is required for pathogenesis. However, the bacterial analog of ubiquitin, prokaryotic ubiquitin-like protein (Pup), is an intrinsically disordered protein that bears little sequence or structural resemblance to the highly structured ubiquitin. Thus, it was unknown how pupylated proteins were recruited to the proteasome. Here, we show that the Mycobacterium proteasomal ATPase (Mpa) has three pairs of tentacle-like coiled coils that recognize Pup. Mpa bound unstructured Pup through hydrophobic interactions and a network of hydrogen bonds, leading to the formation of an {alpha}-helix in Pup. Our work describes a binding-induced folding recognition mechanism in the Pup-proteasome system that differs mechanistically from substrate recognition in the ubiquitin-proteasome system. This key difference between the prokaryotic and eukaryotic systems could be exploited for the development of a small molecule-based treatment for tuberculosis.

  19. Binding-induced Folding of Prokaryotic Ubiquitin-like Protein on the Mycobacterium Proteasomal ATPase Targets Substrates for Degradation

    SciTech Connect (OSTI)

    T Wang; K Heran Darwin; H Li

    2011-12-31

    Mycobacterium tuberculosis uses a proteasome system that is analogous to the eukaryotic ubiquitin-proteasome pathway and is required for pathogenesis. However, the bacterial analog of ubiquitin, prokaryotic ubiquitin-like protein (Pup), is an intrinsically disordered protein that bears little sequence or structural resemblance to the highly structured ubiquitin. Thus, it was unknown how pupylated proteins were recruited to the proteasome. Here, we show that the Mycobacterium proteasomal ATPase (Mpa) has three pairs of tentacle-like coiled coils that recognize Pup. Mpa bound unstructured Pup through hydrophobic interactions and a network of hydrogen bonds, leading to the formation of an {alpha}-helix in Pup. Our work describes a binding-induced folding recognition mechanism in the Pup-proteasome system that differs mechanistically from substrate recognition in the ubiquitin-proteasome system. This key difference between the prokaryotic and eukaryotic systems could be exploited for the development of a small molecule-based treatment for tuberculosis.

  20. Intercalation of paracetamol into the hydrotalcite-like host

    SciTech Connect (OSTI)

    Kovanda, Frantisek, E-mail: Frantisek.Kovanda@vscht.cz [Department of Solid State Chemistry, Institute of Chemical Technology, Prague, Technicka 5, 166 28 Prague (Czech Republic); Maryskova, Zuzana [Department of Solid State Chemistry, Institute of Chemical Technology, Prague, Technicka 5, 166 28 Prague (Czech Republic); Kovar, Petr [Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 16 Prague (Czech Republic)

    2011-12-15

    Hydrotalcite-like compounds are often used as host structures for intercalation of various anionic species. The product intercalated with the nonionic, water-soluble pharmaceuticals paracetamol, N-(4-hydroxyphenyl)acetamide, was prepared by rehydration of the Mg-Al mixed oxide obtained by calcination of hydrotalcite-like precursor at 500 Degree-Sign C. The successful intercalation of paracetamol molecules into the interlayer space was confirmed by powder X-ray diffraction and infrared spectroscopy measurements. Molecular simulations showed that the phenolic hydroxyl groups of paracetamol interact with hydroxide sheets of the host via the hydroxyl groups of the positively charged sites of Al-containing octahedra; the interlayer water molecules are located mostly near the hydroxide sheets. The arrangement of paracetamol molecules in the interlayer is rather disordered and interactions between neighboring molecules cause their tilting towards the hydroxide sheets. Dissolution tests in various media showed slower release of paracetamol intercalated in the hydrotalcite-like host in comparison with tablets containing the powdered pharmaceuticals. - Graphical abstract: Molecular simulations showed disordered arrangement of paracetamol molecules in the interlayer; most of the interlayer water molecules are located near the hydroxide sheets. Black-Small-Square Highlights: Black-Right-Pointing-Pointer Paracetamol was intercalated in Mg-Al hydrotalcite-like host by rehydration/reconstruction procedure. Black-Right-Pointing-Pointer Paracetamol phenolic groups interact with positively charged sites in hydroxide sheets. Black-Right-Pointing-Pointer Molecular simulations showed disordered arrangement of guest molecules in the interlayer. Black-Right-Pointing-Pointer Slower release of paracetamol intercalated in the hydrotalcite-like host was observed.

  1. PUBLISHED ONLINE: 22 JUNE 2015 | DOI: 10.1038/NPHYS3368 Linear magnetoresistance in mosaic-like

    E-Print Network [OSTI]

    Loss, Daniel

    -dimensional (3D) silver chalcogenides, semiconductors, topological insulators, and 2D multilayer graphenes2 advantageous to treat a 2D system. Not only is magnetotransport an essentially 2D phenomenon, but also-like bilayer graphene Ferdinand Kisslinger1 , Christian Ott1 , Christian Heide1 , Erik Kampert2 , Benjamin Butz

  2. Developing an OSGi-like Service Platform for .NET Clment Escoffier, Didier Donsez, and Richard S. Hall

    E-Print Network [OSTI]

    Donsez, Didier

    service deployment life cycle and its amenability to remote management. Microsoft's .NET platform, in some extensible systems like those made possi- ble by the OSGi framework for Java. This paper pre- sents industries and to Java development in general. The main abilities contributing to its use in these new areas

  3. Folding Protein-Like Structures with Open Gemma B. Danks, Susan Stepney, and Leo S. D. Caves

    E-Print Network [OSTI]

    Stepney, Susan

    Folding Protein-Like Structures with Open L-systems Gemma B. Danks, Susan Stepney, and Leo S. D501@york.ac.uk Abstract. Proteins, under native conditions, fold to specific 3D struc- tures according protein is a strong indicator of its function in the cell. The mechanisms involved in protein folding

  4. Extraterrestrial Ice. "Now he could see, glistening like silver bubbles in the earthlight, a group of pressure

    E-Print Network [OSTI]

    Moore, John

    to simulating conditions expected on a long space exploration trip, to Mars for example. Temperatures in central. It is likely that the first destinations of man in the long term exploration and colonization of the solar system will be the polar regions of first the Moon and then Mars. This is for the simple reason that only

  5. Soft X-ray laser using pumping of 3P and 4P levels of He-like and H-like ions

    DOE Patents [OSTI]

    Hagelstein, P.L.

    1987-04-21

    X-ray laser method and apparatus are disclosed for producing coherent radiation at, for example, energies of at least 40 eV, using Be-like Cr, N-like Ni, He-like Na, B-like Cr, Be-like Mn or similar multiply ionized species to pump appropriate high energy transitions in He-like or H-like N, O, F, C or rare gases, with associated laser transition gains of 4-50 cm[sup [minus]1]. 8 figs.

  6. Soft x-ray laser using pumping of 3P and 4P levels of He-like and H-like ions

    DOE Patents [OSTI]

    Hagelstein, P.

    1982-03-26

    X-ray laser method and apparatus for producing coherent radiation at, for example, energies of 40 to 189 eV, using Be-like Cr, N-like Ni, He-like Na, B-like Cr, Be-like Mn or similar multiply ionized species to pump appropriate high energy transitions in He-like or H-like rare gases or N, O, F, or C gases, with associated laser transition gains of 20 to 50 cm/sup -1/.

  7. Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor-like by Electrostatic Gating

    E-Print Network [OSTI]

    Zettl, Alex

    with dry nitrogen during the measurement. Sample preparation We grow single layer graphene on copper foil1 Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor electro-optic sampling.2 The focused THz beam at our graphene sample has a diameter of 1 mm. For optical

  8. Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor-like by Electrostatic Gating

    E-Print Network [OSTI]

    Zettl, Alex

    1 Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor electro-optic sampling.2 The focused THz beam at our graphene sample has a diameter of 1 mm. For optical between optical pump and THz probe. We use ion-gel gating to control the carrier concentration in graphene

  9. Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor-like by Electrostatic Gating

    E-Print Network [OSTI]

    Wang, Feng

    Controlling Graphene Ultrafast Hot Carrier Response from Metal-like to Semiconductor neutral graphene but decreases in highly doped graphene. We show that this transition from semiconductor graphene upon optical excitation. We observe that the photoinduced terahertz absorption increases in charge

  10. Analysis of a power grid using the Kuramoto-like model

    E-Print Network [OSTI]

    Filatrella, Giovanni; Pedersen, Niels Falsig

    2008-01-01

    We show that there is a link between the Kuramoto paradigm and another system of synchronized oscillators, namely an electrical power distribution grid of generators and consumers. The purpose of this work is to show both the formal analogy and some practical consequences. The mapping can be made quantitative, and under some necessary approximations a class of Kuramoto-like models, those with bimodal distribution of the frequencies, is most appropriate for the power-grid. In fact in the power-grid there are two kinds of oscillators: the 'sources' delivering power to the 'consumers'.

  11. Zeolite-like metal–organic frameworks (ZMOFs): Design, synthesis, and properties

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

    Eddaoudi, Mohamed; Sava, Dorina F.; Eubank, Jarrod F.; Adil, Karim; Guillerm, Vincent

    2015-10-24

    This study highlights various design and synthesis approaches toward the construction of ZMOFs, which are metal–organic frameworks (MOFs) with topologies and, in some cases, features akin to traditional inorganic zeolites. The interest in this unique subset of MOFs is correlated with their exceptional characteristics arising from the periodic pore systems and distinctive cage-like cavities, in conjunction with modular intra- and/or extra-framework components, which ultimately allow for tailoring of the pore size, pore shape, and properties towards specific applications.

  12. Analysis of a power grid using the Kuramoto-like model

    E-Print Network [OSTI]

    Giovanni Filatrella; Arne Hejde Nielsen; Niels Falsig Pedersen

    2008-02-16

    We show that there is a link between the Kuramoto paradigm and another system of synchronized oscillators, namely an electrical power distribution grid of generators and consumers. The purpose of this work is to show both the formal analogy and some practical consequences. The mapping can be made quantitative, and under some necessary approximations a class of Kuramoto-like models, those with bimodal distribution of the frequencies, is most appropriate for the power-grid. In fact in the power-grid there are two kinds of oscillators: the 'sources' delivering power to the 'consumers'.

  13. Instabilities in a simplified Fermi-like model with Krook-type collisions, intrinsic damping, and a source

    SciTech Connect (OSTI)

    Zale?ny, J. [West Pomeranian University of Technology, Institute of Physics, 70-310 Szczecin (Poland)] [West Pomeranian University of Technology, Institute of Physics, 70-310 Szczecin (Poland)

    2013-08-15

    Plasma micro-instabilities have been investigated numerically using a simplified Fermi-like model extended to include also a Krook-type collision operator containing a source plus collisions and a phenomenologically introduced intrinsic damping. In this simplified Fermi-like model, the wave is modeled as a single potential well. The resonant wave-particle interaction occurs due to bounces of the particles trapped between the well barriers, the height of which depends on the energy exchange between the particles and the wave. A fast numerical algorithm is used for solving the simplified Fermi-like model with the source and the relaxation processes and is briefly described and the obtained numerical results are presented and discussed. The main observation is that the presence of the source and the Krook-type collisions tends to suppress the process of filamentation in phase space and to restore the initial distribution function with free energy. In the Fermi like model including source and collisions, the steady state of the wave amplitude is achieved only due to the presence of the damping in the system. This is different from the collisionless case, when the steady state is achieved due to phase mixing. Some remarks in the end of the paper compare the results of the Fermi-like model with those of the analytical Berk-Breizman model, which inspired the extension of the Fermi-like model to include a source, collisions, and damping.

  14. The A-like matrices for a hypercube

    E-Print Network [OSTI]

    Miklavic, Stefko

    2010-01-01

    Let $D$ denote a positive integer and let $Q_D$ denote the graph of the $D$-dimensional hypercube. Let $X$ denote the vertex set of $Q_D$ and let $A \\in \\MX$ denote the adjacency matrix of $Q_D$. A matrix $B \\in \\MX$ is called $A$-{\\em like} whenever both (i) $BA = AB$; (ii) for all $x,y \\in X$ that are not equal or adjacent, the $(x,y)$-entry of $B$ is zero. Let $\\Al$ denote the subspace of $\\MX$ consisting of the $A$-like elements. We decompose $\\Al$ into the direct sum of its symmetric part and antisymmetric part. We give a basis for each part. The dimensions of the symmetric part and antisymmetric part are $D+1$ and ${D \\choose 2}$, respectively.

  15. Method for producing fluorinated diamond-like carbon films

    DOE Patents [OSTI]

    Hakovirta, Marko J.; Nastasi, Michael A.; Lee, Deok-Hyung; He, Xiao-Ming

    2003-06-03

    Fluorinated, diamond-like carbon (F-DLC) films are produced by a pulsed, glow-discharge plasma immersion ion processing procedure. The pulsed, glow-discharge plasma was generated at a pressure of 1 Pa from an acetylene (C.sub.2 H.sub.2) and hexafluoroethane (C.sub.2 F.sub.6) gas mixture, and the fluorinated, diamond-like carbon films were deposited on silicon <100>substrates. The film hardness and wear resistance were found to be strongly dependent on the fluorine content incorporated into the coatings. The hardness of the F-DLC films was found to decrease considerably when the fluorine content in the coatings reached about 20%. The contact angle of water on the F-DLC coatings was found to increase with increasing film fluorine content and to saturate at a level characteristic of polytetrafluoroethylene.

  16. Polarization mesurements of gamma ray bursts and axion like particles

    E-Print Network [OSTI]

    Andre Rubbia; Alexander Sakharov

    2008-09-03

    A polarized gamma ray emission spread over a sufficiently wide energy band from a strongly magnetized astrophysical object like gamma ray bursts (GRBs) offers an opportunity to test the hypothesis of axion like particles (ALPs). Based on evidences of polarized gamma ray emission detected in several gamma ray bursts we estimated the level of ALPs induced dichroism, which could take place in the magnetized fireball environment of a GRB. This allows to estimate the sensitivity of polarization measurements of GRBs to the ALP-photon coupling. This sensitivity $\\gag\\le 2.2\\cdot 10^{-11} {\\rm GeV^{-1}}$ calculated for the ALP mass $m_a=10^{-3}~{\\rm eV}$ and MeV energy spread of gamma ray emission is competitive with the sensitivity of CAST and becomes even stronger for lower ALPs masses.

  17. Volume Ignition via Time-like Detonation in Pellet Fusion

    E-Print Network [OSTI]

    Csernai, L P

    2015-01-01

    Relativistic fluid dynamics and the theory of relativistic detonation fronts are used to estimate the space-time dynamics of the burning of the D-T fuel in Laser driven pellet fusion experiments. The initial "High foot" heating of the fuel makes the compressed target transparent to radiation, and then a rapid ignition pulse can penetrate and heat up the whole target to supercritical temperatures in a short time, so that most of the interior of the target ignites almost simultaneously and instabilities will have no time to develop. In these relativistic, radiation dominated processes both the interior, time-like burning front and the surrounding space-like part of the front will be stable against Rayleigh-Taylor instabilities. To achieve this rapid, volume ignition the pulse heating up the target to supercritical temperature should provide the required energy in less than ~ 10 ps.

  18. Small Wind Electric Systems Small Wind Electric Systems

    E-Print Network [OSTI]

    Branoff, Theodore J.

    An Illinois Consumer's Guide Small Wind Electric Systems #12;Small Wind Electric Systems Cover photo: Small wind turbines, like this grid-connected 10-kilowatt Bergey, can provide supplemental power -- Warren Gretz, NREL/PIX09630 #12;Small Wind Electric Systems Contents Introduction

  19. The Effect of Lunar-like Satellites on the Orbital Infrared Light Curves of Earth-analog Planets

    E-Print Network [OSTI]

    Nicholas A. Moskovitz; Eric Gaidos; Darren Williams

    2008-10-17

    We investigate the influence of lunar-like satellites on the infrared orbital light curves of Earth-analog extra-solar planets. Such light curves will be obtained by NASA's Terrestrial Planet Finder (TPF) and ESA's Darwin missions as a consequence of repeat observations to confirm the companion status of a putative planet. We use an energy balance model to calculate disk-averaged infrared (bolometric) fluxes from planet-satellite systems over a full orbital period (one year). The satellites are assumed to lack an atmosphere, have a low thermal inertia like that of the Moon and span a range of plausible radii. The planets are assumed to have thermal and orbital properties that mimic those of the Earth while their obliquities and orbital longitudes of inferior conjunction remain free parameters. Even if the gross thermal properties of the planet can be independently constrained (e.g. via spectroscopy or visible-wavelength detection of specular glint from a surface ocean) only the largest (approximately Mars-size) lunar-like satellites can be detected by light curve data from a TPF-like instrument (i.e. one that achieves a photometric signal-to-noise of 10-20 at infrared wavelengths). Non-detection of a lunar-like satellite can obfuscate the interpretation of a given system's infrared light curve so that it may resemble a single planet with high obliquity, different orbital longitude of vernal equinox relative to inferior conjunction and in some cases drastically different thermal characteristics. If the thermal properties of the planet are not independently established then the presence of a lunar-like satellite cannot be inferred from infrared data, thus demonstrating that photometric light curves alone can only be used for preliminary study of extra-solar Earth-like planets.

  20. Declaration of Stewardship Whereas the climate system is nearing tipping points with likely devastating

    E-Print Network [OSTI]

    Hansen, James E.

    is needed. However, removal of fossil fuel subsidies and supply constraints may go a long way. Certainty except at power plants where CO2 is captured and sequestered, and (2) a modest but slowly growing price of a rising price is probably most important for driving innovation. Amory Lovins argues that no carbon tax

  1. A Study of Vandermonde-like Matrix Systems With Emphasis on Preconditioning and Krylov Matrix Connection.

    E-Print Network [OSTI]

    Saraswat, Jyoti

    2009-06-11

    ) is the spectral radius of AT A: 0.2 Definitions 0.2.1 Vandermonde Matrix. A classical (n+1) (n+1) Vandermonde matrix is defined as follows ?V = 2 66 66 66 64 1 x1 ::: xn1 1 x2 ::: xn2 ... ... ... ... 1 xn+1 ::: xnn+1 3 77 77 77 75 : Vandermonde matrices generally... m+1;1 i n+1 = 2 66 66 66 64 p0(x1) p1(x1) ::: pm(x1) p0(x2) p1(x2) ::: pm(x2) ... ... ::: ... p0(xn+1) p1(xn+1) ::: pm(xn+1) 3 77 77 77 75 = vk j 1 k n+1;1 j m+1 6 where p j is a polynomial of degree j. 0.2.3 Krylov Matrices. For a given matrix A2Rn...

  2. The Role of Ubiquitin and Ubiquitin-Like Modification Systems in Papillomavirus Biology 

    E-Print Network [OSTI]

    Wilson, Van G.

    2014-09-24

    , only one of which has enzymatic activity. Additionally, the HPV productive life cycle is intimately tied to the epithelial differentiation program and they must replicate in what are normally non-replicative cells, thus, these viruses must reprogram...

  3. Localization of water monomers inside ice-like clusters

    E-Print Network [OSTI]

    V. L. Golo; S. M. Pershin

    2012-04-04

    On the basis of the experimental data we suggest that water monomers could be trapped in channels running through ice-like clusters in water. Our argument relies on a simple model that describes the motion of a dipole particle inside a channel in the presence of an electric field with linear gradient. The model admits of both finite and infinite regimes of motion so that the finite one could correspond to the particle being confined to a channel.

  4. Superior Conductive Solid-like Electrolytes: Nanoconfining Liquids within the Hollow Structures

    SciTech Connect (OSTI)

    Zhang, Jinshui [ORNL; Bai, Ying [ORNL; Sun, Xiao-Guang [ORNL; Li, Yunchao [ORNL; Guo, Bingkun [ORNL; Chen, Jihua [ORNL; Veith, Gabriel M [ORNL; Hensley, Dale K [ORNL; Paranthaman, Mariappan Parans [ORNL; Goodenough, John B [University of Texas at Austin; Dai, Sheng [ORNL

    2015-01-01

    The growth and proliferation of lithium (Li) dendrites during cell recharge is unavoidable, which seriously hinders the development and application of rechargeable Li metal batteries. Solid electrolytes with robust mechanical modulus are regarded as a promising approach to overcome the dendrite problems. However, their room-temperature ionic conductivities are usually too low to reach the level required for normal battery operation. Here, a class of novel solid electrolytes with liquid-like room-temperature ionic conductivities (> 1 mS cm-1) has been successfully synthesized by taking advantage of the unique nanoarchitectures of hollow silica (HS) spheres to confine liquid electrolytes in hollow space to afford high conductivities. In a symmetric lithium/lithium cell, such kind of solid-like electrolytes demonstrates a robust performance against Li dendrite problems, well stabilizing the cell system from short circuiting in a long-time operation at current densities ranging from 0.16 to 0.32 mA cm-2. Moreover, the high flexibility and compatibility of HS nanoarchitectures, in principle, enables broad tunability to choose desired liquids for the fabrication of other kinds of solid-like electrolytes, such as those containing Na+, Mg2+ or Al3+ as conductive media, providing a useful alternative strategy for the development of next generation rechargeable batteries.

  5. Transmission and Goos-Hänchen like Shifts through a Graphene Double Barrier in an Inhomogeneous Magnetic Field

    E-Print Network [OSTI]

    Miloud Mekkaoui; Ahmed Jellal; Hocine Bahlouli

    2015-07-14

    We studied the transport properties of electrons in graphene as they are scattered by a double barrier potential in the presence of an inhomogeneous magnetic field. We computed the transmission coefficient and Goos-H\\"anchen like shifts for our system and noticed that transmission is not allowed for certain range of energies. In particular, we found that, in contrast to the electrostatic barriers, the magnetic barriers are able to confine Dirac fermions. We also established some correlation between the electronic transmission properties of Dirac fermions with the Goos-H\\"anchen like shifts, as reflected in the numerical data.

  6. A History Keeping Debugging System for PLASMA

    E-Print Network [OSTI]

    Morrison, Jerry Howard

    PLASMA (for PLAnner-like System Modeled on Actors) is a message-passing computer language based on actor semantics. Since every event in the system is the receipt of a message actor by a target actor, a complete history ...

  7. Searching for the Solar System's Chemical Recipe

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

    Searching for the Solar System's Chemical Recipe Searching for the Solar System's Chemical Recipe Print Wednesday, 20 February 2013 00:00 The ratio of isotopes in elements like...

  8. Prevalence of Earth-size Planets Orbiting Sun-like Stars

    E-Print Network [OSTI]

    Petigura, Erik Ardeshir

    2015-01-01

    of Earth-Size Planets Orbiting Sun-Like 4.1 PlanetEarth-size Planets Orbiting Sun- like Stars 5.1 The Best42kEarth-size Planets Orbiting Sun-like Stars By Erik Ardeshir

  9. Performance of conjugate gradient-like algorithms in transient two-phase subchannel analysis

    SciTech Connect (OSTI)

    Turner, J.A. (Los Alamos National Lab., NM (USA)); Doster, M.J. (North Carolina State Univ., Raleigh, NC (USA). Dept. of Nuclear Engineering)

    1991-01-01

    A transient, drift-flux subchannel analysis code (SWIRL) has been created for the development and evaluation of algorithms for the solution of weakly three-dimensional fluid flow problems. Spatial discretization on a staggered grid, semi-implicit temporal discretization, and algebraic reduction of the conservation equations of mass, energy, and momentum result in nonsymmetric block-tridiagonal linear systems of equations that must be solved for the pressure distribution at each time step of a transient. The solution of these systems of equations is the most time-consuming portion of the code, and direct, stationary iterative, and preconditioned conjugate gradient (CG)-like methods have been investigated both for a simple approach to steady-state and for a severe transient. The best direct algorithm appears to be an efficient implementation of block elimination, and iterative methods are compared to this algorithm for accuracy, robustness, and efficiency. Results presented here indicate that preconditioned CG-like methods such as Sonneveld's conjugate gradients squared are superior to an efficient direct method. 44 refs., 13 figs.

  10. Strain-engineered band parameters of graphene-like SiC monolayer

    SciTech Connect (OSTI)

    Behera, Harihar; Mukhopadhyay, Gautam

    2014-10-06

    Using full-potential density functional theory (DFT) calculations we show that the band gap and effective masses of charge carriers in SiC monolayer (ML-SiC) in graphene-like two-dimensional honeycomb structure are tunable by strain engineering. ML-SiC was found to preserve its flat 2D graphene-like structure under compressive strain up to 7%. A transition from indirect-to-direct gap-phase is predicted to occur for a strain value lying within the interval (1.11 %, 1.76%). In both gap-phases band gap decreases with increasing strain, although the rate of decrease is different in the two gap-phases. Effective mass of electrons show a non-linearly decreasing trend with increasing tensile strain in the direct gap-phase. The strain-sensitive properties of ML-SiC, may find applications in future strain-sensors, nanoelectromechanical systems (NEMS) and nano-optomechanical systems (NOMS) and other nano-devices.

  11. Characterization of diamond-like nanocomposite thin films grown by plasma enhanced chemical vapor deposition

    SciTech Connect (OSTI)

    Santra, T. S.; Liu, C. H. [Institute of Nanoengineering and Microsystems (NEMS), National Tsing Hua University, Hsinchu, Taiwan 30043 (China); Bhattacharyya, T. K. [Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur 721302, West Bengal (India); Patel, P. [Department of Electrical and Computer Engineering, University of Illinois at Urbana Champaign, Urbana, Illinois 61801 (United States); Barik, T. K. [School of Applied Sciences, Haldia Institute of Technology, Haldia 721657, Purba Medinipur, West Bengal (India)

    2010-06-15

    Diamond-like nanocomposite (DLN) thin films, comprising the networks of a-C:H and a-Si:O were deposited on pyrex glass or silicon substrate using gas precursors (e.g., hexamethyldisilane, hexamethyldisiloxane, hexamethyldisilazane, or their different combinations) mixed with argon gas, by plasma enhanced chemical vapor deposition technique. Surface morphology of DLN films was analyzed by atomic force microscopy. High-resolution transmission electron microscopic result shows that the films contain nanoparticles within the amorphous structure. Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and x-ray photoelectron spectroscopy (XPS) were used to determine the structural change within the DLN films. The hardness and friction coefficient of the films were measured by nanoindentation and scratch test techniques, respectively. FTIR and XPS studies show the presence of C-C, C-H, Si-C, and Si-H bonds in the a-C:H and a-Si:O networks. Using Raman spectroscopy, we also found that the hardness of the DLN films varies with the intensity ratio I{sub D}/I{sub G}. Finally, we observed that the DLN films has a better performance compared to DLC, when it comes to properties like high hardness, high modulus of elasticity, low surface roughness and low friction coefficient. These characteristics are the critical components in microelectromechanical systems (MEMS) and emerging nanoelectromechanical systems (NEMS).

  12. Gravitational instabilities in a protosolar-like disc I: dynamics and chemistry

    E-Print Network [OSTI]

    Evans, M G; Boley, A C; Caselli, P; Durisen, R H; Hartquist, T W; Rawlings, J M C

    2015-01-01

    To date, most simulations of the chemistry in protoplanetary discs have used 1+1D or 2D axisymmetric $\\alpha$-disc models to determine chemical compositions within young systems. This assumption is inappropriate for non-axisymmetric, gravitationally unstable discs, which may be a significant stage in early protoplanetary disc evolution. Using 3D radiative hydrodynamics, we have modelled the physical and chemical evolution of a 0.17 M$_{\\odot}$ self-gravitating disc over a period of 2000 yr. The 0.8 M$_{\\odot}$ central protostar is likely to evolve into a solar-like star, and hence this Class 0 or early Class I young stellar object may be analogous to our early Solar System. Shocks driven by gravitational instabilities enhance the desorption rates, which dominate the changes in gas-phase fractional abundances for most species. We find that at the end of the simulation, a number of species distinctly trace the spiral structure of our relatively low-mass disc, particularly CN. We compare our simulation to that o...

  13. Interactive crop management in the Community Earth System Model (CESM1): Seasonal influences on land-atmosphere fluxes

    E-Print Network [OSTI]

    Levis, S.

    2014-01-01

    will likely improve earth system model simulations withABSTRACT The Community Earth System Model, version 1 (CESM1)in the Community Earth System Model (CESM1): Seasonal

  14. Schwarzschild-like metric and a quantum vacuum

    E-Print Network [OSTI]

    P. R. Silva

    2013-02-01

    A quantum vacuum, represented by a viscous fluid, is added to the Einstein vacuum, surrounding a spherical distribution of mass. This gives as a solution, in spherical coordinates, a Schwarzschild-like metric. The plot of g00 and g11 components of the metric, as a function of the radial coordinate, display the same qualitative behavior as that of the Schwarzschild metric. However, the temperature of the event horizon is equal to the Hawking temperature multiplied by a factor of two, while the entropy is equal to half of the Bekenstein one.

  15. Nail-like targets for laser plasma interaction experiments

    SciTech Connect (OSTI)

    Pasley, J; Wei, M; Shipton, E; Chen, S; Ma, T; Beg, F N; Alexander, N; Stephens, R B; MacPhee, A G; Hey, D; Pape, S L; Patel, P; Mackinnon, A J; Key, M H; Offermann, D; Link, A; Chowdhury, E; Van-Woerkom, L D; Freeman, R R

    2007-12-18

    The interaction of ultra-high power picosecond laser pulses with solid targets is of interest both for benchmarking the results of hybrid particle in cell (PIC) codes and also for applications to re-entrant cone guided fast ignition. We describe the construction of novel targets in which copper/titanium wires are formed into 'nail-like' objects by a process of melting and micromachining, so that energy can be reliably coupled to a 24 {micro}m diameter wire. An extreme-ultraviolet image of the interaction of the Titan laser with such a target is shown.

  16. Thermodynamic $R$-diagrams reveal solid-like fluid states

    E-Print Network [OSTI]

    George Ruppeiner; Peter Mausbach; Helge-Otmar May

    2014-11-11

    We evaluate the thermodynamic curvature $R$ for fluid argon, hydrogen, carbon dioxide, and water. For these fluids, $R$ is mostly negative, but we also find significant regimes of positive $R$, which we interpret as indicating solid-like fluid properties. Regimes of positive $R$ are present in all four fluids at very high pressure. Water has, in addition, a narrow slab of positive $R$ in the stable liquid phase near its triple point. Also, water is the only fluid we found having $R$ decrease on cooling into the metastable liquid phase, consistent with a possible second critical point.

  17. Piezo-antiferromagnetic effect of sawtooth-like graphene nanoribbons

    SciTech Connect (OSTI)

    Zhao, Shangqian; Lu, Yan; Zhang, Yuchun; Lu, Wengang Liang, Wenjie

    2014-05-19

    A type of sawtooth-like graphene nanoribbon (SGNR) with piezo-antiferromagnetic effect is studied numerically. The ground state of the studied SGNR changes from nonmagnetic state to antiferromagnetic state with uniaxial strain. The changes of the spin-charge distributions during the stretching are investigated. The Hubbard model reveals that the hopping integrals between the ?-orbitals of the carbon atoms are responsible to the piezo-antiferromagnetic effect. The study sheds light on the application of graphene-based structures to nanosensors and spintronic devices.

  18. Y-12 apprentice programs are a lot like TAT

    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-effectWorkingLos Alamos verifies largest single and the history ofare a lot like TAT

  19. Lab employees don't treat their trash like garbage

    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 likeUniverseIMPACTThousand CubicResource andfirstDeviceLab captures fiveLab Employees

  20. INLEN: A Methodology and Integrated System for Knowledge Discovery in Databases

    E-Print Network [OSTI]

    Michalski, Ryszard S.

    by Ryszard S. Michalski and Bruce Katz of International Intelligent Systems, Inc. (INIS). I would like to thank INIS for providing the source code of the AURORA system. I would like to thank the collaborators

  1. Synthesis and characterization of akaganeite-like ferric oxyhydroxides

    SciTech Connect (OSTI)

    Linehan, J.C.; Darab, J.G.; Matson, D.W.; Chen, X.; Amonette, J.E. [Pacific Northwest National Lab., Richland, WA (United States)

    1997-08-01

    Iron-based powders have been used as catalytic and stoichiometric reactants in a variety of organic reactions and are receiving additional attention as ion exchange materials or once-through adsorbents for clean-up of toxic or radioactive waste streams. Recent efforts have been directed toward the design of iron-based products, in particular iron sulfides, capable of performing as hydrocracking catalysts for coal liquefaction and heavy crude or resid cracking. Here the authors present structural studies of new materials having akaganeite-like structures and of their use as hydrocracking catalyst precursors. Akaganeite, {beta}-FeOOH, a natural ferric oxyhydroxide mineral, has a structure containing tunnel-like cavities in which chloride ions reside. Analogs of akaganeite in which carbonate or sulfate groups replace the chloride ions have also been synthesized. Both akaganeite and its substituted analogs are known to be precursors for active hydrocracking catalysts. The authors present powder X-ray diffraction (XRD) and X-ray absorption fine-structure spectroscopy (XAFS) data confirming the synthesis of new ferric oxyhydroxides having structures similar to akaganeite, but contain molybdate and tungstate oxy-anions. They also present a new hydrothermal method to prepare this family of materials.

  2. A Skyrme-like model with an exact BPS bound

    E-Print Network [OSTI]

    L. A. Ferreira; Wojtek J. Zakrzewski

    2013-07-22

    We propose a new Skyrme-like model with fields taking values on the sphere S^3 or, equivalently, on the group SU(2). The action of the model contains a quadratic kinetic term plus a quartic term which is the same as that of the Skyrme-Faddeev model. The novelty of the model is that it possess a first order Bogomolny type equation whose solutions automatically satisfy the second order Euler-Lagrange equations. It also possesses a lower bound on the static energy which is saturated by the Bogomolny solutions. Such Bogomolny equation is equivalent to the so-called force free equation used in plasma and solar Physics, and which possesses large classes of solutions. An old result due to Chandrasekhar prevents the existence of finite energy solutions for the force free equation on the entire tridimensional space R^3. We construct new exact finite energy solutions to the Bogomolny equations for the case where the space is the three-sphere S^3, using toroidal like coordinates.

  3. A Numerical Method for Computing an SVD-like Decomposition

    E-Print Network [OSTI]

    Xu, Hongguo

    2005-09-05

    variety of applications. One example is the linear Hamiltonian system [19] x?(t) = JAx(t), x(0) = x0, where A ? R2m×2m is real symmetric positive definite. The solution of such a Hamil- tonian system satisfies xT (t)Ax(t) = xT0 Ax0 ?t ? 0.(1.4) This shows... one fundamental principle of the Hamiltonian system, the conservation law. The solution x(t) can be computed by using the structured canonical form of the Hamiltonian matrix JA. Since A is positive definite, one can compute the factorization A = BTB...

  4. Oscillatory signals with nonlinear frequencies for control of nonholonomic systems

    E-Print Network [OSTI]

    systems focused on the drift-free case. In fact, many of the mechan- ical systems which one typically [8], a forced sphere-plate system [5], and £sh-like carangiform underwater propulsors [12, 13

  5. On-Site Wastewater Treatment Systems: Spray Distribution (Spanish) 

    E-Print Network [OSTI]

    Lesikar, Bruce J.; Enciso, Juan

    1999-08-12

    Spray distribution systems for wastewater treated on site are much like lawn irrigation systems. This publication explains the advantages, disadvantages, maintenance steps and estimated costs of spray distribution systems.

  6. 2013 National Clean Energy Business Plan Competition | Department...

    Energy Savers [EERE]

    a battery materials venture developing silicon-graphene anodes for the next generation of lithium-ion batteries. SiNode anodes offer higher battery capacity and faster charging...

  7. Overlooked astrophysical signatures of axion(-like) particles

    E-Print Network [OSTI]

    Zioutas, K; Papaevangelou, T; Zioutas, Konstantin; Semertzidis, Yannis; Papaevangelou, Thomas

    2007-01-01

    The working principle of axion helioscopes can be behind unexpected solar X-ray emission, being associated with solar magnetic fields, which become the catalyst. Solar axion signals are transient brightenings, or, continuous radiation. We arrive at 2 exotica: a) trapped, radiatively decaying, massive axions and b) outstreaming light axions, explaining unpredictable transient solar phenomena. Then, the energy of a related phenomenon points at the birth place of the axions. The energy range below some 100 eV is a window of opportunity for direct axion searches. Indirect signatures support axions or the like as an explanation of enigmatic behaviour in the Sun and beyond. Axion antennas could take advantage of such a feed back.

  8. Optically transparent, scratch-resistant, diamond-like carbon coatings

    DOE Patents [OSTI]

    He, Xiao-Ming; Lee, Deok-Hyung; Nastasi, Michael A.; Walter, Kevin C.; Tuszewski, Michel G.

    2003-06-03

    A plasma-based method for the deposition of diamond-like carbon (DLC) coatings is described. The process uses a radio-frequency inductively coupled discharge to generate a plasma at relatively low gas pressures. The deposition process is environmentally friendly and scaleable to large areas, and components that have geometrically complicated surfaces can be processed. The method has been used to deposit adherent 100-400 nm thick DLC coatings on metals, glass, and polymers. These coatings are between three and four times harder than steel and are therefore scratch resistant, and transparent to visible light. Boron and silicon doping of the DLC coatings have produced coatings having improved optical properties and lower coating stress levels, but with slightly lower hardness.

  9. Ideal-Gas Like Markets An Exact Solution

    E-Print Network [OSTI]

    Mohanty, P K

    2006-01-01

    We provide an exact solution to the ideal gas like models studied in econophysics to understand the microscopic origin of Pareto-law. In these class of models the key ingredient necessary for having a self organized scale free steady state distribution is the trading/collision rule where agents/particles save a definite fraction of their wealth/energy and invests the rest for trading. Using Gibbs ensemble approach we could obtain the exact distribution of wealth in this model. Moreover we show that in this model (a) good savers are always rich and (b) every agent poor or rich invests the same amount for trading. Non-linear trading rules could alter the generic scenario observed here.

  10. Dark photons in the decay of Higgs-like boson

    E-Print Network [OSTI]

    Kozlov, G A

    2015-01-01

    We study the dark matter particle, the dark photon (DP), in the decay of the Higgs-like boson. The nature of dark matter is maintained through the hidden sector including the effects of breaking of the scale invariance. The model is based on the additional $U^{\\prime}(1)$ gauge group associated with light DP. The interaction between DP and quarks is mediated by the derivative of the scalar - the dilaton. The latter appears in the conformal sector which triggers the electroweak symmetry breaking. Upper limits are set on the DP mass, the mixing strength between the standard photon and DP. The model does allow to estimate the DP mass with the value of 4.5 MeV. The maximal value of the scale invariance breaking constant is also reported.

  11. Formation of Earth-like Planets During and After Giant Planet Migration

    E-Print Network [OSTI]

    Avi M. Mandell; Sean N. Raymond; Steinn Sigurdsson

    2007-01-02

    Close-in giant planets are thought to have formed in the cold outer regions of planetary systems and migrated inward, passing through the orbital parameter space occupied by the terrestrial planets in our own Solar System. We present dynamical simulations of the effects of a migrating giant planet on a disk of protoplanetary material and the subsequent evolution of the planetary system. We numerically investigate the dynamics of post-migration planetary systems over 200 million years using models with a single migrating giant planet, one migrating and one non-migrating giant planet, and excluding the effects of a gas disk. Material that is shepherded in front of the migrating giant planet by moving mean motion resonances accretes into "hot Earths", but survival of these bodies is strongly dependent on dynamical damping. Furthermore, a significant amount of material scattered outward by the giant planet survives in highly excited orbits; the orbits of these scattered bodies are then damped by gas drag and dynamical friction over the remaining accretion time. In all simulations Earth-mass planets accrete on approximately 100 Myr timescales, often with orbits in the Habitable Zone. These planets range in mass and water content, with both quantities increasing with the presence of a gas disk and decreasing with the presence of an outer giant planet. We use scaling arguments and previous results to derive a simple recipe that constrains which giant planet systems are able to form and harbor Earth-like planets in the Habitable Zone, demonstrating that roughly one third of the known planetary systems are potentially habitable.

  12. Sources of mycosporine-like amino acids in planktonic Chlorella-bearing ciliates (Ciliophora)

    E-Print Network [OSTI]

    Sommaruga, Ruben

    -like amino acids, natural sunscreens, symbiosis Introduction Ciliates are among the most important members

  13. Involvement of a eukaryotic-like ubiquitin-related modifier in the proteasome pathway of the archaeon Sulfolobus acidocaldarius

    E-Print Network [OSTI]

    Anjum, Rana S.; Bray, Sian M.; Blackwood, John K.; Kilkenny, Mairi L.; Coelho, Matthew A.; Foster, Benjamin M.; Li, Shurong; Howard, Julie A.; Pellegrini, Luca; Albers, Sonja-Verena; Deery, Michael J.; Robinson, Nicholas P.

    2015-01-01

    1 Involvement of a eukaryotic-like ubiquitin-related modifier in the proteasome pathway of the archaeon Sulfolobus acidocaldarius. Rana S. Anjum 1*, Sian M. Bray 1*, John K. Blackwood 1, Mairi L. Kilkenny 1, Matthew A. Coelho... , UK. 2) Cambridge Centre for Proteomics, Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, Cambridge, UK. 3) Molecular Biology of Archaea, Max Planck Institute for Terrestrial Microbiology, 35043...

  14. The spin glass-like dynamics of gelatin gels

    E-Print Network [OSTI]

    Alan Parker; Valery Normand

    2003-06-03

    We show that there are several striking parallels between the dynamics of gelatin gels and spin glasses. In general, glassy systems retain a memory of their past history. A key characteristic differentiating spin glasses from most other glassy systems is that on cooling they appear to "forget" what happened just below the glass transition temperature, but the memory is recovered on heating. We show that gelatin gels also behave in this way. Both systems show critical scaling of the kinetics with temperature and undergo physical aging, that is they never reach equilibrium, but continue to harden indefinitely at a rate which is linear in log(time). The parallels between the dynamics of these two completely different kinds of condensed matter strongly suggest that they share an underlying theory.

  15. Stochastic differentiation into an osteoclast lineage from cloned macrophage-like cells

    SciTech Connect (OSTI)

    Hayashi, Shin-Ichi; Murata, Akihiko; Okuyama, Kazuki; Shimoda, Yuhki; Hikosaka, Mari; Yasuda, Hisataka; Yoshino, Miya

    2012-11-16

    Highlights: Black-Right-Pointing-Pointer The frequency of C7 differentiation into osteoclast was low and constant. Black-Right-Pointing-Pointer Only extended C7 cell cultures exponentially increased osteoclast+ cultures. Black-Right-Pointing-Pointer C7 cell differentiation into committed osteoclast precursors is on 'autopilot'. Black-Right-Pointing-Pointer The system may maintain the stem cell self-renewal and differentiation. -- Abstract: Differentiation into osteoclasts is induced by a macrophage colony-stimulating factor and receptor activator of nuclear-factor {kappa}B ligand. The macrophage-like cell line, C7 has the potential to differentiate into osteoclasts when it is cultured with both factors for 6 days. Although C7 is an established cell line, the frequency of differentiation into this lineage was less than 10%, and the ratio was maintained at a constant level, even after repeated cloning. In this study, to increase the differentiation of C7 cells to osteoclasts, C7 derivative treatments with several activators and/or inhibitors were performed for 3 days prior to setting osteoclast induction analysis; however, a reagent to significantly up-regulate the frequency of differentiation was not found. Only extended cultures for osteoclastogenesis exponentially increased the frequency of osteoclast precursors. It is likely that C7 cell differentiation into committed osteoclast precursors is on 'autopilot' rather than requiring specific signals to drive this process.

  16. Design, manufacture and initial operation of the beryllium components of the JET ITER-like wall

    E-Print Network [OSTI]

    Riccardo, V; Matthews, G F; Nunes, I; Thompson, V; Villedieu, E; Contributors, JET EFDA

    2013-01-01

    The aim of the JET ITER-like Wall Project was to provide JET with the plasma facing material combination now selected for the DT phase of ITER (bulk beryllium main chamber limiters and a full tungsten divertor) and, in conjunction with the upgraded neutral beam heating system, to achieve ITER relevant conditions. The design of the bulk Be plasma facing components had to be compatible with increased heating power and pulse length, as well as to reuse the existing tile supports originally designed to cope with disruption loads from carbon based tiles and be installed by remote handling. Risk reduction measures (prototypes, jigs, etc) were implemented to maximize efficiency during the shutdown. However, a large number of clashes with existing components not fully captured by the configuration model occurred. Restarting the plasma on the ITER-like Wall proved much easier than for the carbon wall and no deconditioning by disruptions was observed. Disruptions have been more threatening than expected due to the redu...

  17. Free Energy Landscape of Protein-like Chains with Discontinuous Potentials

    E-Print Network [OSTI]

    Hanif Bayat Movahed; Ramses van Zon; Jeremy Schofield

    2012-03-23

    In this article the configurational space of two simple protein models consisting of polymers composed of a periodic sequence of four different kinds of monomers is studied as a function of temperature. In the protein models, hydrogen bond interactions, electrostatic repulsion, and covalent bond vibrations are modeled by discontinuous step, shoulder and square-well potentials, respectively. The protein-like chains exhibit a secondary alpha helix structure in their folded states at low temperatures, and allow a natural definition of a configuration by considering which beads are bonded. Free energies and entropies of configurations are computed using the parallel tempering method in combination with hybrid Monte Carlo sampling of the canonical ensemble of the discontinuous potential system. The probability of observing the most common configuration is used to analyze the nature of the free energy landscape, and it is found that the model with the least number of possible bonds exhibits a funnel-like free energy landscape at low enough temperature for chains with fewer than 30 beads. For longer proteins, the landscape consists of several minima, where the configuration with the lowest free energy changes significantly by lowering the temperature and the probability of observing the most common configuration never approaches one due to the degeneracy of the lowest accessible potential energy.

  18. Helium- and Lithium-like ionic sequences: Critical charges

    E-Print Network [OSTI]

    N. L. Guevara; A. V. Turbiner

    2011-09-28

    In non-relativistic quantum mechanics we study the Coulomb systems of infinitely massive center of charge Z and two-three electrons: $(Z,e,e)$ and $(Z,e,e,e)$. It is shown that in both cases the total energy curve in $Z$ is smooth, without any visible irregularities. Thus, for both systems the physical integer charges $Z=1,2,...$ do not play a distinguished role as would be associated with charge quantization. By definition, a critical charge $Z_{cr}$ is a charge which separates a domain of the existence of bound states from a domain of unbound ones (continuum). For both systems the critical charges are found, $Z_{cr,2e}=0.91085$ and $Z_{cr,3e}=2.009$, respectively. Based on numerical analysis, the Puiseux expansion in fractional powers of $(Z-Z_{cr})$ is constructed for both systems. Our results indicate the existence of a square-root branch point singularity at $Z_{cr}$ with exponent 3/2. A connection between the critical charge and the radius of convergence of 1/Z-expansion is briefly discussed.

  19. Self-propelled Worm-like Filaments: Spontaneous Spiral Formation, Structure, and Dynamics

    E-Print Network [OSTI]

    Rolf E. Isele-Holder; Jens Elgeti; Gerhard Gompper

    2015-08-06

    Worm-like filaments that are propelled homogeneously along their tangent vector are studied by Brownian dynamics simulations. Systems in two dimensions are investigated, corresponding to filaments adsorbed to interfaces or surfaces. A large parameter space covering weak and strong propulsion, as well as flexible and stiff filaments is explored. For strongly propelled and flexible filaments, the free-swimming filaments spontaneously form stable spirals. The propulsion force has a strong impact on dynamic properties, such as the rotational and translational mean square displacement and the rate of conformational sampling. In particular, when the active self-propulsion dominates thermal diffusion, but is too weak for spiral formation, the rotational diffusion coefficient has an activity-induced contribution given by $v_c/\\xi_P$, where $v_c$ is the contour velocity and $\\xi_P$ the persistence length. In contrast, structural properties are hardly affected by the activity of the system, as long as no spirals form. The model mimics common features of biological systems, such as microtubules and actin filaments on motility assays or slender bacteria, and artificially designed microswimmers.

  20. An interpolation between the wave and diffusion equations through the fractional evolution equations Dirac like

    SciTech Connect (OSTI)

    Pierantozzi, T.; Vazquez, L.

    2005-11-01

    Through fractional calculus and following the method used by Dirac to obtain his well-known equation from the Klein-Gordon equation, we analyze a possible interpolation between the Dirac and the diffusion equations in one space dimension. We study the transition between the hyperbolic and parabolic behaviors by means of the generalization of the D'Alembert formula for the classical wave equation and the invariance under space and time inversions of the interpolating fractional evolution equations Dirac like. Such invariance depends on the values of the fractional index and is related to the nonlocal property of the time fractional differential operator. For this system of fractional evolution equations, we also find an associated conserved quantity analogous to the Hamiltonian for the classical Dirac case.

  1. EIT-like transmission by interaction between multiple Bragg scattering and local plasmonic resonances

    E-Print Network [OSTI]

    Liu, Z Z; Xiao, J J

    2015-01-01

    We study the optical properties associated to both the polariton gap and the Bragg gap in periodic resonator-waveguide coupled system, based on the temporal coupled mode theory and the transfer matrix method. By the complex band and the transmission spectrum, it is feasible to tune the interaction between multiple Bragg scattering and the local resonance, which may give rise to analogous phenomena of electromagnetically induced transparency (EIT). We further design a plasmonic slot waveguide side-coupled with local plasmonic resonator to demonstrate the EIT-like effects in the near-infared band. Numerical calculations show that realistic amount of metal Joule loss may destroy the interference and the total absorption is enhanced in the transparency windwo due to the near zero group velocity of the guiding wave.

  2. Ramsey-like measurement of the decoherence rate between Zeeman sub-levels

    E-Print Network [OSTI]

    M. Shuker; O. Firstenberg; Y. Sagi; A. Ben-kish; N. Davidson; A. Ron

    2008-07-19

    Two-photon processes that involve different sub-levels of the ground state of an atom, are highly sensitive to depopulation and decoherence within the ground state. For example, the spectral width of electromagnetically induced transparency resonances in $\\Lambda-$type system, are strongly affected by the ground state depopulation and decoherence rates. We present a direct measurement of decay rates between hyperfine and Zeeman sub-levels in the ground state of $^{87}$Rb vapor. Similar to the relaxation-in-the-dark technique, pumping lasers are used to pre-align the atomic vapor in a well defined quantum state. The free propagation of the atomic state is monitored using a Ramsey-like method. Coherence times in the range 1-10 ms were measured for room temperature atomic vapor. In the range of the experimental parameters used in this study, the dominant process inducing Zeeman decoherence is the spin-exchange collisions between rubidium atoms.

  3. Binding energy for hydrogen-like atoms in the Nelson model without cutoffs

    E-Print Network [OSTI]

    Christian Hainzl; Masao Hirokawa; Herbert Spohn

    2003-12-10

    In the Nelson model particles interact through a scalar massless field. For hydrogen-like atoms there is a nucleus of infinite mass and charge $Ze$, $Z > 0$, fixed at the origin and an electron of mass $m$ and charge $e$. This system forms a bound state with binding energy $E_{\\rm bin} = me^4Z^2/2$ to leading order in $e$. We investigate the radiative corrections to the binding energy and prove upper and lower bounds which imply that $ E_{\\rm bin} = me^4 Z^2/2 + c_0 e^6 + \\Ow(e^7 \\ln e)$ with explicit coefficient $c_0$ and independent of the ultraviolet cutoff. $c_0$ can be computed by perturbation theory, which however is only formal since for the Nelson Hamiltonian the smallest eigenvalue sits exactly at the bottom of the continuous spectrum.

  4. Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis

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

    Bajo, Ken-ichi; Olinger, Chad T.; Jurewicz, Amy J.G.; Burnett, Donald S.; Sakaguchi, Isao; Suzuki, Taku; Itose, Satoru; Ishihara, Morio; Uchino, Kiichiro; Wieler, Rainer; et al

    2015-10-01

    The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains the physics of ion solid interactions involving the solar wind. Thus, they provide an experimental basis for revealing ancient solar activities represented by solar-wind implants in natural samples. We measured the first depth profile of ?He in a collector; the shallow implantation (peaking at more »is consistent with TRIM simulations using the observed ?He velocity distribution during the Genesis mission. It is therefore likely that all solar-wind elements heavier than H are completely intact in this Genesis collector and, consequently, the solar particle energy distributions for each element can be calculated from their depth profiles. Ancient solar activities and space weathering of solar system objects could be quantitatively reproduced by solar particle implantation profiles.« less

  5. Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets

    E-Print Network [OSTI]

    Krissansen-Totton, Joshua; Charnay, Benjamin; Arney, Giada; Robinson, Tyler D; Meadows, Victoria; Catling, David C

    2015-01-01

    The next generation of ground and space-based telescopes will image habitable planets around nearby stars. A growing literature describes how to characterize such planets with spectroscopy, but less consideration has been given to the usefulness of planet colors. Here, we investigate whether potentially Earth-like exoplanets could be identified using UV-visible-to-NIR wavelength broadband photometry (350-1000 nm). Specifically, we calculate optimal photometric bins for identifying an exo-Earth and distinguishing it from uninhabitable planets including both Solar System objects and model exoplanets. The color of some hypothetical exoplanets - particularly icy terrestrial worlds with thick atmospheres - is similar to Earth's because of Rayleigh scattering in the blue region of the spectrum. Nevertheless, subtle features in Earth's reflectance spectrum appear to be unique. In particular, Earth's reflectance spectrum has a 'U-shape' unlike all our hypothetical, uninhabitable planets. This shape is partly biogenic...

  6. Tungsten dust impact on ITER-like plasma edge

    SciTech Connect (OSTI)

    Smirnov, R. D. Krasheninnikov, S. I.; Pigarov, A. Yu.; Rognlien, T. D.

    2015-01-15

    The impact of tungsten dust originating from divertor plates on the performance of edge plasma in ITER-like discharge is evaluated using computer modeling with the coupled dust-plasma transport code DUSTT-UEDGE. Different dust injection parameters, including dust size and mass injection rates, are surveyed. It is found that tungsten dust injection with rates as low as a few mg/s can lead to dangerously high tungsten impurity concentrations in the plasma core. Dust injections with rates of a few tens of mg/s are shown to have a significant effect on edge plasma parameters and dynamics in ITER scale tokamaks. The large impact of certain phenomena, such as dust shielding by an ablation cloud and the thermal force on tungsten ions, on dust/impurity transport in edge plasma and consequently on core tungsten contamination level is demonstrated. It is also found that high-Z impurities provided by dust can induce macroscopic self-sustained plasma oscillations in plasma edge leading to large temporal variations of edge plasma parameters and heat load to divertor target plates.

  7. Analysis of Star Formation in Galaxy-like Objects

    E-Print Network [OSTI]

    Patricia B. Tissera

    1999-12-20

    Using cosmological hydrodynamical simulations, we investigate the effects of hierarchical aggregation on the triggering of star formation in galactic-like objects. We include a simple star formation model to transform the cold gas in dense regions into stars. Simulations with different parameters have been performed in order to quantify the dependence of the results on the parameters. We then resort to stellar population synthesis models to trace the color evolution of each object with red-shift and in relation to their merger histories. We find that, in a hierarchical clustering scenario, the process of assembling of the structure is one natural mechanism that may trigger star formation. The resulting star formation rate history for each individual galactic object is composed of a continuous one ($\\leq 3 \\rm{M_{\\odot}/yr}$) and a series of star bursts. We find that even the accretion of a small satellite can be correlated with a stellar burst. Massive mergers are found to be more efficient at transforming gas into stars

  8. High-frequency modes in solar-like stars

    E-Print Network [OSTI]

    C. Karoff

    2007-08-14

    p-mode oscillations in solar-like stars are excited by the outer convection zone in these stars and reflected close to the surface. The p-modes are trapped inside an acoustic cavity, but the modes only stay trapped up to a given frequency (known as the acoustic cut-off frequency) as modes with larger frequencies are generally not reflected at the surface. This means that modes with frequency larger than the acoustic cut-off frequency must be traveling waves. The high-frequency modes may provide information about the physics in the outer layers of the stars and the excitation source and are therefore highly interesting as it is the estimation of these two phenomena that causes some of the largest uncertainties when calculating stellar oscillations. High-frequency modes have been detected in the Sun, beta Hydri and in alpha Cen A & B by smoothing the so-called echelle diagram and the large frequency separation as a function of frequency have been estimated. The large frequency separation has been compared with a simple model of the acoustic cavity which suggests that the reflectivity of the photosphere is larger at high frequency than predicted by standard models of the solar atmosphere and that the depth of the excitation source is larger than what has been estimated by other models and might depend on the order n and degree l of the modes.

  9. Lithium abundance in a sample of solar-like stars

    E-Print Network [OSTI]

    López-Valdivia, R; Bertone, E; Chávez, M; de Miera, F Cruz-Saenz; Amazo-Gómez, E M

    2015-01-01

    We report on the determination of the lithium abundance [A(Li)] of 52 solar-like stars. For 41 objects the A(Li) here presented corresponds to the first measurement. We have measured the equivalent widths of the 6708\\AA\\ lithium feature in high-resolution spectroscopic images ($R \\sim 80\\,000$), obtained at the Observatorio Astrof\\'isico Guillermo Haro (Sonora, Mexico), as part of the first scientific observations of the revitalized Lunar and Planetary Laboratory (LPL) Echelle Spectrograph, now known as the Cananea High-resolution Spectrograph (CanHiS). Lithium abundances were derived with the Fortran code MOOG, using as fundamental input a set of atmospheric parameters recently obtained by our group. With the help of an additional small sample with previous A(Li) determinations, we demonstrate that our lithium abundances are in agreement, to within uncertainties, with other works. Two target objects stand out from the rest of the sample. The star BD+47 3218 ($T_{\\rm eff}$ = 6050$\\pm$52 K, A(Li) = 1.86$\\pm$ 0...

  10. Jets and Jet-like correlations in STAR

    E-Print Network [OSTI]

    Alice Ohlson; for the STAR Collaboration

    2012-10-08

    The propagation and modification of hard-scattered partons in the QGP can be studied using various types of jet and jet-like correlation measurements. The STAR detector with its full azimuthal and large pseudorapidity acceptance, as well as its wide transverse momentum (pT) coverage, is well-suited for these measurements. At mid-rapidity, azimuthal correlations of charged hadrons with the axis of a reconstructed trigger jet are used to study the modification of jet shapes and associated hadron yields from p+p to Au+Au. Dihadron correlations with back-to-back high-pT hadron pairs are used to investigate dijets and fragmentation biases. STAR's increased particle identification capabilities due to the Time-Of-Flight detector are utilized to investigate the differences between jet-related and bulk-related particle production. Dihadron correlations with identified trigger particles provide experimental tests of simple recombination theories. The comprehensive set of STAR jet-quenching measurements can be used to further constrain theories of parton energy loss at RHIC.

  11. Systems Analysis Systems Integration

    E-Print Network [OSTI]

    include coal liquids, shale oil & biomass. #12;7 OPTIONS FOR FUTURE U.S. ENERGY - MY VIEW Coal Gasification to Liquid Fuels & Electricity Hundred + Modest Thousands Breeders Major Other Issues Likely Use Coal gasification Large Close Second Coal electric* Small/Medium/Large Poor Wind* Small

  12. Modular hybrid plasma reactor and related systems and methods...

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

    Patent Search Success Stories News Events Find More Like This Return to Search Modular hybrid plasma reactor and related systems and methods United States Patent Patent Number:...

  13. On-Site Wastewater Treatment Systems: Mound System 

    E-Print Network [OSTI]

    Lesikar, B.; Waynard, V.

    2002-01-01

    system is generally a septic tank, which re- moves the settleable and floatable solids from the wastewater. Advanced pretreatment systems, such as aerobic treatment units or media filters, can also be used to remove additional solids and organic matter..., New For Sale Only $1 The On-Site Wastewater Treatment Systems series of publications is a result of collaborative efforts of various agencies, organizations and funding sources. We would like to acknowledge the following collaborators: Texas State Soil...

  14. Piecewise uniform conduction-like flow channels and method therefor

    DOE Patents [OSTI]

    Cummings, Eric B. (Livermore, CA); Fiechtner, Gregory J. (Livermore, CA)

    2006-02-28

    A low-dispersion methodology for designing microfabricated conduction channels for on-chip electrokinetic-based systems is presented. The technique relies on trigonometric relations that apply for ideal electrokinetic flows, allowing faceted channels to be designed on chips using common drafting software and a hand calculator. Flows are rotated and stretched along the abrupt interface between adjacent regions with differing permeability. Regions bounded by interfaces form flow "prisms" that can be combined with other designed prisms to obtain a wide range of turning angles and expansion ratios while minimizing dispersion. Designs are demonstrated using two-dimensional numerical solutions of the Laplace equation.

  15. How Do You Like the Monthly Recaps? | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11,SecurityHome solar systemsEnergy Hownoticed them by

  16. Genuine Correlations of LikeSign Particles in Hadronic Z 0 Decays

    E-Print Network [OSTI]

    driven by that of like­ sign multiplets. This points to the likely influence of Bose­Einstein correlations. Some of the recently proposed algorithms to simulate Bose­Einstein e#ects, implemented

  17. "I'd Like to Check Out Two Books, One DVD, and One Electrical...

    Energy Savers [EERE]

    "I'd Like to Check Out Two Books, One DVD, and One Electrical Meter, Please." "I'd Like to Check Out Two Books, One DVD, and One Electrical Meter, Please." December 8, 2009 -...

  18. Automatic deployment of autonomous cars in a robotic urban-like environment (RULE)

    E-Print Network [OSTI]

    Itani, Sara T.

    We present a computational framework and experimental setup for deployment of autonomous cars in a miniature Robotic Urban-Like Environment (RULE). The specifications are given in rich, human-like language as temporal logic ...

  19. The role of the NOD-like receptor adaptor RIP2 in otitis media

    E-Print Network [OSTI]

    Lee, Jasmine

    2011-01-01

    SAN DIEGO The Role of the NOD-like Receptor Adaptor RIP2 inmolecular pattern interleukin NOD-like receptor non-typeable1. A schematic representation of NOD signaling via the RIP2

  20. Heavy standard model-like Higgs boson and a light stop fromYukawa...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Heavy standard model-like Higgs boson and a light stop from Yukawa-deflected gauge mediation Citation Details In-Document Search Title: Heavy standard model-like...

  1. A NOTE ON SPIRAL-LIKE POLYNOMIALS ALAN GLUCHOFF AND FREDERICK HARTMANN

    E-Print Network [OSTI]

    Hartmann, Frederick

    A NOTE ON SPIRAL-LIKE POLYNOMIALS ALAN GLUCHOFF AND FREDERICK HARTMANN Abstract. Let D be the unit. Univalent functions, spiral-like poynomials, starlike. 1 #12;2 ALAN GLUCHOFF AND FREDERICK HARTMANN class

  2. Composition of Dioxin-like PCBs in Fish: An Application for Risk

    E-Print Network [OSTI]

    Jackson, Don

    Composition of Dioxin-like PCBs in Fish: An Application for Risk Assessment S A T Y E N D R A P . B in Aroclors and that toxicity varies considerably among the congeners with dioxin-like PCBs (dl

  3. Integrated substation looks like one RTU to dispatchers

    SciTech Connect (OSTI)

    Koch, W.

    1995-12-01

    Traditionally, supervisory control and data acquisition systems (Scada) use a master/slave arrangement. The master Scada computer polls individual circuit devices for information, or the devices may report (by exception) to the computer. The substation engineering department of Portland General Electric Co (PCE) is now pioneering a new arrangement in which all devices in a substation communicate with each other and a local computer over a data bus. A single communications line connects the Scada master to the same bus for control and/or monitoring. The new approach is known as a substation integration system (SIS). Thus, for a lower initial cost, substation integration: eliminates the need for redundant equipment - such as panel meters, annunciators, transducers, sequence-of-event recorders, auxiliary tripping relays. Scada RTU, control, and transfer switches; reduces control house size by 25% by reducing wiring and using panel space more efficiently; provides a standardized user interface for easy data access, both locally and remotely; is flexible and expandable because of its modularity and use of non-proprietary hardware and software; improves operability, maintainability and reliability through immediate access to key data; and, reduces overall life-cycle costs by reducing travel and outage time through remote access to substation information. 5 figs.

  4. Forecasting the Most Likely Status of Wild Salmon in the California Central Valley in 2100

    E-Print Network [OSTI]

    Franks, Sierra E.; Lackey, Robert T.

    2015-01-01

    at things like efficient water use, energy efficiency, andto use the highest energy and water efficiency measures

  5. Operation and coupling of LH waves with the ITER-like wall at JET

    E-Print Network [OSTI]

    Kirov, K K; Ekedahl, A; Petrzilka, V; Arnoux, G; Baranov, Yu; Brix, M; Goniche, M; Jachmich, S; Mayoral, M-L; Ongena, J; Rimini, F; Stamp, M; Contributors, JET EFDA

    2013-01-01

    In this paper important aspects of Lower Hybrid (LH) operation with the ITER Like Wall (ILW) [1] at JET are reported. Impurity release during LH operation was investigated and it was found that there is no significant Be increase with LH power. Concentration of W was analysed in more detail and it was concluded that LH contributes negligibly to its increase. No cases of W accumulation in LH-only heating experiments were observed so far. LH wave coupling was studied and optimised to achieve the level of system performance similar to before ILW installation. Measurements by Li-beam were used to study systematic dependencies of the SOL density on the gas injection rate from a dedicated gas introduction module and the LH power and launcher position. Experimental results are supported by SOL transport modelling. Observations of arcs in front of the LH launcher and hotspots on magnetically connected sections of the vessel are reported. Overall, a relatively troublefree operation of the LH system up to 2.5MW of coup...

  6. Spinning like a blue straggler: the population of fast rotating blue straggler stars in ? Centauri

    SciTech Connect (OSTI)

    Mucciarelli, A.; Lovisi, L.; Ferraro, F. R.; Dalessandro, E.; Lanzoni, B.

    2014-12-10

    By using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT, we measured the radial and rotational velocities for 110 blue straggler stars (BSSs) in ? Centauri, the globular cluster-like stellar system harboring the largest known BSS population. According to their radial velocities, 109 BSSs are members of the system. The rotational velocity distribution is very broad, with the bulk of BSSs spinning at less than ?40 km s{sup –1} (in agreement with the majority of such stars observed in other globular clusters) and a long tail reaching ?200 km s{sup –1}. About 40% of the sample has v{sub e} sin i > 40 km s{sup –1} and about 20% has v{sub e} sin i > 70 km s{sup –1}. Such a large fraction is very similar to the percentage of fast rotating BSSs observed in M4. Thus, ? Centauri is the second stellar cluster, beyond M4, with a surprisingly high population of fast spinning BSSs. We found a hint of radial behavior for a fraction of fast rotating BSSs, with a mild peak within one core radius, and a possible rise in the external regions (beyond four core radii). This may suggest that recent formation episodes of mass transfer BSSs occurred preferentially in the outskirts of ? Centauri, or that braking mechanisms able to slow down these stars are least efficient in the lowest density environments.

  7. Efficient weakly-radiative wireless energy transfer: An EIT-like approach

    SciTech Connect (OSTI)

    Hamam, Rafif E. [Center for Materials Science and Engineering and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)], E-mail: rafif@mit.edu; Karalis, Aristeidis; Joannopoulos, J.D.; Soljacic, Marin [Center for Materials Science and Engineering and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)

    2009-08-15

    Inspired by a quantum interference phenomenon known in the atomic physics community as electromagnetically induced transparency (EIT), we propose an efficient weakly radiative wireless energy transfer scheme between two identical classical resonant objects, strongly coupled to an intermediate classical resonant object of substantially different properties, but with the same resonance frequency. The transfer mechanism essentially makes use of the adiabatic evolution of an instantaneous (so called 'dark') eigenstate of the coupled 3-object system. Our analysis is based on temporal coupled mode theory (CMT), and is general enough to be valid for various possible sorts of coupling, including the resonant inductive coupling on which witricity-type wireless energy transfer is based. We show that in certain parameter regimes of interest, this scheme can be more efficient, and/or less radiative than other, more conventional approaches. A concrete example of wireless energy transfer between capacitively-loaded metallic loops is illustrated at the beginning, as a motivation for the more general case. We also explore the performance of the currently proposed EIT-like scheme, in terms of improving efficiency and reducing radiation, as the relevant parameters of the system are varied.

  8. The Solar System as an Exoplanetary System

    E-Print Network [OSTI]

    Martin, Rebecca G

    2015-01-01

    With the availability of considerably more data, we revisit the question of how special our Solar System is, compared to observed exoplanetary systems. To this goal, we employ a mathematical transformation that allows for a meaningful, statistical comparison. We find that the masses and densities of the giant planets in our Solar System are very typical, as is the age of the Solar System. While the orbital location of Jupiter is somewhat of an outlier, this is most likely due to strong selection effects towards short-period planets. The eccentricities of the planets in our Solar System are relatively small compared to those in observed exosolar systems, but still consistent with the expectations for an 8-planet system (and could, in addition, reflect a selection bias towards high-eccentricity planets). The two characteristics of the Solar System that we find to be most special are the lack of super-Earths with orbital periods of days to months and the general lack of planets inside of the orbital radius of Me...

  9. Water-like solvation thermodynamics in a spherically symmetric solvent model

    E-Print Network [OSTI]

    Buldyrev, Sergey

    Water-like solvation thermodynamics in a spherically symmetric solvent model with two. The Jagla fluid has been recently shown to possess water-like structural, dynamic, and thermodynamic and thereby show that the Jagla fluid also displays water-like solvation thermodynamics. We further find low

  10. Finding IRC-like Meshes Sans Layer 7 Payloads Computer Science Dept.

    E-Print Network [OSTI]

    Binkley, Jim

    Finding IRC-like Meshes Sans Layer 7 Payloads Akshay Dua Computer Science Dept. Portland State Portland, OR, USA singh@cs.pdx.edu Abstract We present an algorithm for detecting IRC-like chat net- works of scanning hosts. We are currently able to dis- cover SSL-encoded IRC meshes as well as other chat- like

  11. Self-assembly of 21-arm star-like diblock copolymer in bulk and under cylindrical

    E-Print Network [OSTI]

    Lin, Zhiqun

    Self-assembly of 21-arm star-like diblock copolymer in bulk and under cylindrical confinement Yuci Xu,ab Weihua Li,*c Feng Qiuc and Zhiqun Lin*b Phase behaviors of a 21-arm star-like diblock copolymer the period of lamellae Dmultiarms formed from multi- arm star-like block copolymers with the number of arms f

  12. Jacobi-like Method for a Control Algorithm in Adaptive-Optics Imaging

    E-Print Network [OSTI]

    Pitsianis, Nikos P.

    Jacobi-like Method for a Control Algorithm in Adaptive-Optics Imaging Nikos P. Pitsianis', Brent L difficult and is approached using a heuristic Jacobi-like algorithm. Numerical tests indicate purpose here is to extend the mathematical theory behind a Jacobi-like heuristic optimization scheme

  13. Ecomorphodynamic feedbacks play an important role in barrier island response to disturbance. Dune-building grasses like Ammophila breviligulata can restore areas of

    E-Print Network [OSTI]

    Lawrence, Deborah

    on Hog Island. In aggregate, our findings suggest that within barrier island systems like the #12;iii VCR#12;ii ABSTRACT Ecomorphodynamic feedbacks play an important role in barrier island response influence of the maintainer feedback on two morphologically distinct islands in the Virginia Coast Reserve

  14. Turtles All The Way Down: A Clean-Slate, Ground-Up, First-Principles Approach to Secure Systems

    E-Print Network [OSTI]

    Peisert, Sean; Talbot, Ed; Bishop, Matt

    2012-01-01

    are critical systems, and many operate in a SCADA fashion.Like any other SCADA system, they can be compromised at the

  15. Polarization and Pressure-Dependence of 2p-1s Transitions in He-Like and Li-Like Neon Recoil Ions 

    E-Print Network [OSTI]

    Watson, R. L.; Palinkas, J.; Pedrazzini, G. J.; Bandong, B.; Can, C.; Church, David A.; Kenefick, R. A.

    1987-01-01

    VOLUME 35, NUMBER 4 FEBRUARY 15, 1987 Polarization and pressure dependence of 2p-1s transitions in He-like and Li-like neon recoil ions R. L. Watson, J. Palinkas, * G. J. Pedrazzini, B. Bandong, and C. Can Cyclotron Institute and Department... of Chemistry, Texas A&M University, College Station, Texas 77843 D. A. Church and R. A. Kenefick Department of Physics, Texas A&M University, College Station, Texas 77843 (Received 1 August 1986) The pressure dependences of 2p-1s transitions in H~- like...

  16. Carnegie Mellon University 1 The Major in Information Systems

    E-Print Network [OSTI]

    Spirtes, Peter

    , and software development principles, languages, methods. Since Information Systems generally operate within Systems Management, Human Computer Interaction, Information Security Policy and Management, Engineering trends indicate that this is likely to continue. IS majors often take jobs in consulting companies, major

  17. Effect of attractive interactions on the water-like anomalies of a core-softened model potential

    SciTech Connect (OSTI)

    Pant, Shashank; Gera, Tarun; Choudhury, Niharendu E-mail: niharc2002@yahoo.com

    2013-12-28

    It is now well established that water-like anomalies can be reproduced by a spherically symmetric potential with two length scales, popularly known as core-softened potential. In the present study we aim to investigate the effect of attractive interactions among the particles in a model fluid interacting with core-softened potential on the existence and location of various water-like anomalies in the temperature-pressure plane. We employ extensive molecular dynamic simulations to study anomalous nature of various order parameters and properties under isothermal compression. Order map analyses have also been done for all the potentials. We observe that all the systems with varying depth of attractive wells show structural, dynamic, and thermodynamic anomalies. As many of the previous studies involving model water and a class of core softened potentials have concluded that the structural anomaly region encloses the diffusion anomaly region, which in turn, encloses the density anomaly region, the same pattern has also been observed in the present study for the systems with less depth of attractive well. For the systems with deeper attractive well, we observe that the diffusion anomaly region shifts toward higher densities and is not always enclosed by the structural anomaly region. Also, density anomaly region is not completely enclosed by diffusion anomaly region in this case.

  18. Declarative Systems

    E-Print Network [OSTI]

    Condie, Tyson

    2011-01-01

    location of data, provides some SQL-style extensions such asUpdates Overlog, like SQL, supports declarative expressionsoptimization stages. The SQL Query Rewrite stage provided a

  19. Boltzmann-Langevin One-Body dynamics for fermionic systems

    E-Print Network [OSTI]

    P. Napolitani; M. Colonna

    2013-02-01

    A full implementation of the Boltzmann-Langevin equation for fermionic systems is introduced in a transport model for dissipative collisions among heavy nuclei. Fluctuations are injected in phase space and not, like in more conventional approaches, as a projection on suitable subspaces. The advantage of this model is to be specifically adapted to describe processes characterised by instabilities, like the formation of fragments from a hot nuclear system, and by dissipation, like the transparency in nucleus-nucleus collisions.

  20. The Effectiveness of the Cause-MaP System in Teaching Interconnected Complex Earth Systems in a Texas Private School 

    E-Print Network [OSTI]

    Forshee, Patricia 1987-

    2012-12-12

    , with practice and encouragement from their instructor, that they recognize intersystem connections in complex Earth systems. With more integration of programs like these, students will become more proficient in recognizing system interactions....

  1. Library System Library System

    E-Print Network [OSTI]

    Cinabro, David

    Library System #12;Library System 5150 Anthony Wayne Drive David Adamany Undergraduate Library that for the current fiscal year, we've been given an additional $600,000 for our library materials budget. We're very subscriptions. The Wayne State University Libraries are deeply committed to providing our faculty and students

  2. Trauma exposure, PTSD and psychotic-like symptoms in post-conflict Timor Leste: an epidemiological survey

    E-Print Network [OSTI]

    Soosay, Ian; Silove, Derrick; Bateman-Steel, Catherine; Steel, Zachary; Bebbington, Paul; Jones, Peter B; Chey, Tien; Ivancic, Lorraine; Marnane, Claire

    2012-12-18

    (EPCACE) [38]. Both constellations include symptoms of mistrust, hos- tility and alienation, characteristics akin to paranoia and other psychotic-like symptoms. Female Male 1.2 0.8-1.7 0.371 Area of residence Rural Urban 2.8 2.0-4.0 0.000* 2.1 1.3-3.2 0... are regarded as alien by others living in the same setting. Nevertheless, cultural factors could still be influential in the expression of symptoms. The traditional animistic faith remains influential in Timor Leste, a system that includes beliefs about curses...

  3. Colloidal Cutin-like Siderophoric Molecules Mobilize Plutonium from Contaminated Soils of the Rocky Flats Environmental Technology Site (RFETS), USA

    SciTech Connect (OSTI)

    Xu, C.; Santschi, P; Roberts, K; Zhong, J; Hatcher, P; Hung, C; Francis, A; Dodge, C; Honeyman, B

    2008-01-01

    Relatively recently, inorganic colloids have been invoked to reconcile the apparent contradictions between expectations based on classical dissolved-phase Pu transport and field observations of 'enhanced' Pu mobility (Kersting et al. Nature 1999, 397, 56-59). A new paradigm for Pu transport is mobilization and transport via biologically produced ligands. This study for the first time reports a new finding of Pu being transported, at sub-pM concentrations, by a cutin-like natural substance containing siderophore-like moieties and virtually all mobile Pu. Most likely, Pu is complexed by chelating groups derived from siderophores that are covalently bound to a backbone of cutin-derived soil degradation products, thus revealing the history of initial exposure to Pu. Features such as amphiphilicity and small size make this macromolecule an ideal collector for actinides and other metals and a vector for their dispersal. Cross-linking to the hydrophobic domains (e.g., by polysaccharides) gives this macromolecule high mobility and a means of enhancing Pu transport. This finding provides a new mechanism for Pu transport through environmental systems that would not have been predicted by Pu transport models.

  4. Improved solar heating systems

    DOE Patents [OSTI]

    Schreyer, J.M.; Dorsey, G.F.

    1980-05-16

    An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.

  5. Solar heating system

    DOE Patents [OSTI]

    Schreyer, James M. (Oak Ridge, TN); Dorsey, George F. (Concord, TN)

    1982-01-01

    An improved solar heating system in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75.degree. to 180.degree. F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing and releasing heat for distribution.

  6. Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications

    E-Print Network [OSTI]

    Ellis, Sebastian A R; Gopalakrishna, Shrihari; Wells, James D

    2014-01-01

    With the renewed interest in vector-like fermion extensions of the Standard Model, we present here a study of multiple vector-like theories and their phenomenological implications. Our focus is mostly on minimal flavor conserving theories that couple the vector-like fermions to the SM gauge fields and mix only weakly with SM fermions so as to avoid flavor problems. We present calculations for precision electroweak and vector-like state decays, which are needed to investigate compatibility with currently known data. We investigate the impact of vector-like fermions on Higgs boson production and decay, including loop contributions, in a wide variety of vector-like extensions and their parameter spaces.

  7. The GammeV suite of experimental searches for axion-like particles

    SciTech Connect (OSTI)

    Steffen, Jason H.; Upadhye, Amol; /KICP, Chicago /Chicago U., EFI

    2009-08-01

    We report on the design and results of the GammeV search for axion-like particles and for chameleon particles. We also discuss plans for an improved experiment to search for chameleon particles, one which is sensitive to both cosmological and power-law chameleon models. Plans for an improved axion-like particle search using coupled resonant cavities are also presented. This experiment will be more sensitive to axion-like particles than stellar astrophysical models or current helioscope experiments.

  8. Sustainability E-Newsletter Fall/Winter 2013-2014 Like "Office of

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Sustainability E-Newsletter Fall/Winter 2013-2014 Like "Office of Environmental Policy" on FacebookDay..........................................................................................2 Campus Sustainability Day our Sustainability Coordinators......................................................6 Campus

  9. Possible Diamond-Like Nanoscale Structures Induced by Slow Highly-Charged Ions on Graphite (HOPG)

    E-Print Network [OSTI]

    Sideras-Haddad, E.

    2009-01-01

    diamond-like structures (nanodiamond) observed using Ramandefect centres 21 in a nanodiamond matrix. II. Experimentallike structures (nanodiamond). Here the surface treatment

  10. Kaolin in the net-like horizon of laterite in Hubei, south China

    E-Print Network [OSTI]

    Li, Zhaohui

    , halloysite, goethite and minor illite, whereas the white net-like veins contain mostly quartz, kaolinite, whereas yellow spots contain concentrations of kaolinite and goethite (Ambrosi & Nahon, 1986

  11. 2.141 Modeling and Simulation of Dynamic Systems, Fall 2002

    E-Print Network [OSTI]

    Hogan, Neville John

    Mathematical modeling of complex engineering systems at a level of detail compatible with the design and implementation of modern control systems. Wave-like and diffusive energy transmission systems. Multiport energy storing ...

  12. Feedback control of spin systems

    E-Print Network [OSTI]

    Claudio Altafini

    2006-01-03

    The feedback stabilization problem for ensembles of coupled spin 1/2 systems is discussed from a control theoretic perspective. The noninvasive nature of the bulk measurement allows for a fully unitary and deterministic closed loop. The Lyapunov-based feedback design presented does not require spins that are selectively addressable. With this method, it is possible to obtain control inputs also for difficult tasks, like suppressing undesired couplings in identical spin systems.

  13. Quasiprobability distributions in open quantum systems: spin-qubit systems

    E-Print Network [OSTI]

    Kishore Thapliyal; Subhashish Banerjee; Anirban Pathak; S. Omkar; V. Ravishankar

    2015-04-08

    Quasiprobability distributions (QDs) in open quantum systems are investigated for $SU(2)$, spin like systems, having relevance to quantum optics and information. In this work, effect of both quantum non-demolition (QND) and dissipative open quantum systems, on the evolution of a number of spin QDs are investigated. Specifically, compact analytic expressions for the $W$, $P$, $Q$, and $F$ functions are obtained for some interesting single, two and three qubit states, undergoing general open system evolutions. Further, corresponding QDs are reported for an N qubit Dicke model and a spin-1 system. The existence of nonclassical characteristics are observed in all the systems investigated here. The study leads to a clear understanding of quantum to classical transition in a host of realistic physical scenarios. Variation of the amount of nonclassicality observed in the quantum systems, studied here,are also investigated using nonclassical volume.

  14. The Roles of Discs for Planetary Systems

    E-Print Network [OSTI]

    Li-Chin Yeh; Ing-Guey Jiang

    2007-01-29

    It is known that the discs are detected for some of the extra-solar planetary systems. It is also likely that there was a disc mixing with planets and small bodies while our Solar System was forming. From our recent results, we conclude that the discs play two roles: the gravity makes planetary systems more chaotic and the drag makes planetary systems more resonant.

  15. Facet-like Structures in Computer Science Napier University, School of Computing,

    E-Print Network [OSTI]

    Priss, Uta

    -like structures are used in computer science. 10 years ago the notion of "facets" was mainly restricted to libraryFacet-like Structures in Computer Science Uta Priss Napier University, School of Computing, u on a mathematical model for facets (and class hierarchies in general), called formal concept analysis, and discusses

  16. Atmospheric plasma deposition of diamond-like carbon coatings Angela M. Ladwig a,b,

    E-Print Network [OSTI]

    Hicks, Robert F.

    include ion beam deposition, cathodic arc spray, pulsed laser ablation, argon ion sputtering, and plasmaAtmospheric plasma deposition of diamond-like carbon coatings Angela M. Ladwig a,b, , Ronald D Available online xxxx Keywords: Atmospheric pressure plasma Diamond-like carbon deposition DLC PECVD

  17. Expert: This GOP primary 'like ultimate fighting'; Will it leave general election wounds?

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Expert: This GOP primary 'like ultimate fighting'; Will it leave general election wounds? By JOHN says. "It's more like ultimate fighting. There are no gentlemen's rules." #12;But "gentleman's rules to Obama. In 1976, Ronald Reagan took his fight against then-President Gerald Ford to the convention

  18. Diffusion within a Layered, Graphite-Like, Spherical Electrode Theoretical Aspects

    E-Print Network [OSTI]

    Taylor, Philip L.

    Diffusion within a Layered, Graphite-Like, Spherical Electrode Theoretical Aspects Paul B. Antohi. Within this model, which mimics a layered, graphite-like spherical electrode, species can enter or leave further performance optimization of Li+ batteries have generated renewed interest into experimental

  19. IEEE INFOCOM 2001 Behavior of TCP-like elastic traffic at a buffered

    E-Print Network [OSTI]

    Schwefel, Hans-Peter

    IEEE INFOCOM 2001 Behavior of TCP-like elastic traffic at a buffered bottleneck router Hans by a stochastic process. The essential behavior of TCP-like flow-control mechanisms is captured in the analytic to existing congestion, the throttling mechanism is only activated when the buffer-occupancy at the bottleneck

  20. Engineering a Recyclable Elastin-like Polypeptide Capturing Scaffold for Non-Chromatographic Protein Purification

    E-Print Network [OSTI]

    Chen, Wilfred

    Engineering a Recyclable Elastin-like Polypeptide Capturing Scaffold for Non- Chromatographic and the reversible aggregation property of elastin-like polypeptide (ELP) to pro- vide fast and cost reduce the purifica- tion cost by recycling the ELP capturing scaffold, a truncated dockerin domain

  1. NEUTRON LIFETIME EXPERIMENT USING UCN STORAGE IN AN `ACCORDION-LIKE' TRAP

    E-Print Network [OSTI]

    Steyerl, Albert

    NEUTRON LIFETIME EXPERIMENT USING UCN STORAGE IN AN `ACCORDION-LIKE' TRAP BY ASHISH M. DESAI determination of the neutron lifetime has an impact on particle physics and cosmology. We report progress towards a measurement of the neutron lifetime using an accordion-like storage trap. Ultracold neutrons

  2. Use of seal-like robot PARO in sensory group therapy for older adults with dementia

    E-Print Network [OSTI]

    Sabanovic, Selma

    Use of seal-like robot PARO in sensory group therapy for older adults with dementia Wan-Ling Chang--This work presents the preliminary results of an eight- week study of the seal-like robot PARO being used adapted the concept of MSBT to the use of PARO as a multimodal sensory stimulus in a group activity

  3. Electronic structure of the Si(111):GaSe van der Waals-like surface termination

    E-Print Network [OSTI]

    Olmstead, Marjorie

    Electronic structure of the Si(111):GaSe van der Waals-like surface termination Reiner Rudolph-like surface termination has been determined by angle-resolved photoelectron spectroscopy using photons. This explains both the absence of a surface core-level shift in Si 2p photoelectron spectra of the terminated

  4. Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya

    E-Print Network [OSTI]

    Najm, Farid N.

    Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya University of Illinois, Urbana-micron VLSI designs include huge power grids that are required to distribute large amounts of current, at in a novel multigrid-like technique for the analysis of power grids. The grid is reduced to a coarser

  5. COMMUNICATIONS Deposition of aligned bamboo-like carbon nanotubes via microwave

    E-Print Network [OSTI]

    of carbon nanotubes on nickel,11 but twist-like defects also exist along carbon nano- tubes. The abilityCOMMUNICATIONS Deposition of aligned bamboo-like carbon nanotubes via microwave plasma enhanced for publication 31 August 2000 Aligned multiwall carbon nanotubes have been grown on silicon substrates

  6. Extending a C-like Language for Portable SIMD Programming Roland Leia Sebastian Hack

    E-Print Network [OSTI]

    Wald, Ingo

    Extending a C-like Language for Portable SIMD Programming Roland Leißa Sebastian Hack Compiler. However, automatic vector- ization techniques are often not powerful enough and suffer from restricted. In this paper, we show how a C-like language can be extended to allow for portable and efficient SIMD

  7. Mar 24th 2011 | from the print edition 0 40Like Battery technology

    E-Print Network [OSTI]

    Braun, Paul

    Mar 24th 2011 | from the print edition 0 40Like Battery technology Highly charged A powerful experimental battery that can be recharged completely in minutes ENGINEERS have long dreamed of shortening the time it takes to recharge batteries. Currently, that can be hours. For applications like motor vehicles

  8. The Solar System Presentation for SRS 5th Grade

    E-Print Network [OSTI]

    Cohen, David

    The Solar System Presentation for SRS 5th Grade Prof. David Cohen, Swarthmore College #12;What astronomers try to answer: ·What are the things in the solar system like? Planets, moons, comets, asteroids, the Sun... ·Are there good conditions for life anywhere in the solar system? ·How did the solar system

  9. I Like it When You Act Like a Leader: A Role Congruity Account of Romantic Desire for Powerful Opposite-Sex Others 

    E-Print Network [OSTI]

    Wilkey, Brian 1987-

    2013-01-11

    such expectations. To this end, we examined perceivers’ romantic liking for opposite-sex targets depending on whether or not the targets conformed to a powerful role. Participants interacted with two opposite-sex partners in brief, recorded sessions. We manipulated...

  10. The effects of refraction on transit transmission spectroscopy: application to Earth-like exoplanets

    SciTech Connect (OSTI)

    Misra, Amit; Meadows, Victoria; Crisp, Dave

    2014-09-01

    We quantify the effects of refraction in transit transmission spectroscopy on spectral absorption features and on temporal variations that could be used to obtain altitude-dependent spectra for planets orbiting stars of different stellar types. We validate our model against altitude-dependent transmission spectra of the Earth from ATMOS and against lunar eclipse spectra from Pallé et al. We perform detectability studies to show the potential effects of refraction on hypothetical observations of Earth analogs with the James Webb Space Telescope NIRSPEC. Due to refraction, there will be a maximum tangent pressure level that can be probed during transit for each given planet-star system. We show that because of refraction, for an Earth-analog planet orbiting in the habitable zone of a Sun-like star only the top 0.3 bars of the atmosphere can be probed, leading to a decrease in the signal-to-noise ratio (S/N) of absorption features by 60%, while for an Earth-analog planet orbiting in the habitable zone of an M5V star it is possible to probe almost the entire atmosphere with minimal decreases in S/N. We also show that refraction can result in temporal variations in the transit transmission spectrum which may provide a way to obtain altitude-dependent spectra of exoplanet atmospheres. Additionally, the variations prior to ingress and subsequent to egress provide a way to probe pressures greater than the maximum tangent pressure that can be probed during transit. Therefore, probing the maximum range of atmospheric altitudes, and in particular the near-surface environment of an Earth-analog exoplanet, will require looking at out-of-transit refracted light in addition to the in-transit spectrum.

  11. HESS J1616-508: likely powered by PSR J1617-5055

    E-Print Network [OSTI]

    R. Landi; A. De Rosa; A. J. Dean; L. Bassani; P. Ubertini; A. J. Bird

    2007-07-05

    HESS J1616-508 is one of the brightest emitters in the TeV sky. Recent observations with the IBIS/ISGRI telescope on board the INTEGRAL spacecraft have revealed that a young, nearby and energetic pulsar, PSR J1617-5055, is a powerful emitter of soft gamma-rays in the 20-100 keV domain. In this paper we present an analysis of all available data from the INTEGRAL, Swift, BeppoSAX and XMM-Newton telescopes with a view to assessing the most likely counterpart to the HESS source. We find that the energy source that fuels the X/gamma-ray emissions is derived from the pulsar, both on the basis of the positional morphology, the timing evidence and the energetics of the system. Likewise, the 1.2% of the pulsar's spin down energy loss needed to power the 0.1-10 TeV emission is also fully consistent with other HESS sources known to be associated with pulsars. The relative sizes of the X/gamma-ray and VHE sources are consistent with the expected lifetimes against synchrotron and Compton losses for a single source of parent electrons emitted from the pulsar. We find that no other known object in the vicinity could be reasonably considered as a plausible counterpart to the HESS source. We conclude that there is good evidence to assume that the HESS J1616-508 source is driven by PSR J1617-5055 in which a combination of synchrotron and inverse Compton processes combine to create the observed morphology of a broad-band emitter from keV to TeV energies.

  12. System size effects and N/Z dependence of balance energy for different isotopic series

    E-Print Network [OSTI]

    Aman D. Sood; Sakshi Gautam

    2011-12-13

    We study the N/Z dependence of energy of vanishing flow or balance energy for different isotopic series of various system masses like Ca+Ca, Ni+Ni, Zr+Zr, Sn+Sn and Xe+Xe. We find that balance energy decreases with N/Z of the system and follows a linear behaviour. The slope of N/Z dependence is steeper for lighter systems like Ca+Ca and less for heavier ones like Xe+Xe.

  13. Method and apparatus for assessing material properties of sheet-like materials

    DOE Patents [OSTI]

    Telschow, Kenneth L. (Idaho Falls, ID); Deason, Vance A. (Idaho Falls, ID)

    2002-01-01

    Apparatus for producing an indication of a material property of a sheet-like material according to the present invention may comprise an excitation source for vibrating the sheet-like material to produce at least one traveling wave therein. A light source configured to produce an object wavefront and a reference wavefront directs the object wavefront toward the sheet-like material to produce a modulated object wavefront. A modulator operatively associated with the reference wavefront modulates the reference wavefront in synchronization with the traveling wave on the sheet-like material to produce a modulated reference wavefront. A sensing medium positioned to receive the modulated object wavefront and the modulated reference wavefront produces an image of the traveling wave in the sheet-like material, the image of the anti-symmetric traveling wave being related to a displacement amplitude of the anti-symmetric traveling wave over a two-dimensional area of the vibrating sheet-like material. A detector detects the image of the traveling wave in the sheet-like material.

  14. Gas-like state of $?$ clusters around $^{16}$O core in $^{24}$Mg

    E-Print Network [OSTI]

    T. Ichikawa; N. Itagaki; T. Kawabata; Tz. Kokalova; W. von Oertzen

    2011-02-08

    We have studied gas-like states of $\\alpha$ clusters around an $^{16}$O core in $^{24}$Mg based on a microscopic $\\alpha$-cluster model. This study was performed by introducing a Monte Carlo technique for the description of the THSR (Tohsaki Horiuchi Schuck R\\"{o}pke) wave function, and the coupling effect to other low-lying cluster states was taken into account. A large isoscalar monopole ($E0$) transition strength from the ground to the gas-like state is discussed. The gas-like state of two $\\alpha$ clusters in $^{24}$Mg around the $^{16}$O core appears slightly below the 2$\\alpha$-threshold e

  15. Shrinking $\\hbar$ as a recipe for revealing classical-like contributions in optical potential cross sections

    E-Print Network [OSTI]

    R. Anni

    2001-02-14

    A simple recipe for revealing classical-like contributions in optical potential cross sections is proposed. The recipe is based on the fact that the classical-like properties are not expected to depend on the actual value of $\\hbar$. This allows us to identify the classical-like characteristics of an optical potential cross section by simply repeating the calculation with different values of $\\hbar$, and observing which properties of the cross section are invariant. This method is applied to the cross sections of a few optical potentials used to describe the recent data of light heavy-ion elastic scattering.

  16. Abstract--Pneumatic systems are highly non-linear by their nature. Despite their many advantages like reliability,

    E-Print Network [OSTI]

    Barth, Eric J.

    such as clamping, grasping, broaching and drilling operations has been utilized in industrial assembly significant energy savings. They used two three- way spool valves instead of a conventional four

  17. The Torrioni di Rialba (Abbadia Lariana -LC, Italy) is a rock tower-like conglomerate divided by a system of

    E-Print Network [OSTI]

    Alippi, Cesare

    is a hybrid wireless-wired sensor network that inspects the insurgence of micro-cracks within the rock (mems is composed by a Wireless Sensor Network (WSN) that measures changes in the structure of the tower of the sensor networks hence reducing the need of in-situ maintenance. All modules composing the monitoring

  18. On Quantum Integrable Systems

    SciTech Connect (OSTI)

    Danilov, Viatcheslav; /Oak Ridge; Nagaitsev, Sergei; /Fermilab

    2011-11-01

    Many quantum integrable systems are obtained using an accelerator physics technique known as Ermakov (or normalized variables) transformation. This technique was used to create classical nonlinear integrable lattices for accelerators and nonlinear integrable plasma traps. Now, all classical results are carried over to a nonrelativistic quantum case. In this paper we have described an extension of the Ermakov-like transformation to the Schroedinger and Pauli equations. It is shown that these newly found transformations create a vast variety of time dependent quantum equations that can be solved in analytic functions, or, at least, can be reduced to time-independent ones.

  19. Stabilized PV system

    DOE Patents [OSTI]

    Dinwoodie, Thomas L. (Piedmont, CA)

    2002-12-17

    A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

  20. Search for new ?[superscript 0]-like particles produced in association with a ?-lepton pair

    E-Print Network [OSTI]

    Lees, J.?P.

    We report on a search in e[superscript +]e[superscript -] annihilations for new ?[superscript 0]-like particles produced in association with a ?-lepton pair. These objects, with a similar mass and similar decay modes to ...

  1. Assessment of Dioxin-Like Soil Contamination in Mexico by Enzyme-Linked Immunosorbent Assay

    E-Print Network [OSTI]

    Hammock, Bruce D.

    Assessment of Dioxin-Like Soil Contamination in Mexico by Enzyme-Linked Immunosorbent Assay E contaminants found in soil (Lor- ber et al. 1998; Nadal et al. 2002), sediment (Hilscherova et al. 2003), air

  2. Students experiencing flu-like symptoms, such as fever with cough and/or sore throat,

    E-Print Network [OSTI]

    Bou-Zeid, Elie

    Students experiencing flu-like symptoms, such as fever with cough and/or sore throat, should other difficulty breathing beyond a typical cough. Inform Undergraduates: Notify the director

  3. Microscale wear behavior and crosslinking of PEG-like coatings for total hip replacements

    E-Print Network [OSTI]

    Kane, Sheryl R.; Ashby, Paul D.; Pruitt, Lisa A.

    2010-01-01

    In contrast, the 40°C coatings were much more wear-and tribology of PEG-like coatings on UHMWPE for total hiphydrated polymer-on-polymer coatings. J Biomed Mater Res B.

  4. Generation and search of axion-like light particle using intense crystalline field

    E-Print Network [OSTI]

    Wei Liao

    2011-07-19

    Intense electric field $\\sim 10^{10}-10^{11}$ V/cm in crystal has been known for a long time and has wide applications. We study the conversion of axion-like light particle and photon in the intense electric field in crystal. We find that the conversion of axion-like particle and photon happens for energy larger than keV range. We propose search of axion-like light particle using the intense crystalline field. We discuss the solar axion search experiment and a variety of shining-through-wall experiment using crystalline field. Due to the intense crystalline field which corresponds to magnetic field $\\sim 10^4-10^5$ Tesla these experiments are very interesting. In particular these experiments can probe the mass range of axion-like particle from eV to keV.

  5. On the analogy between vehicle and vehicle-like cavities with reverberation chambers

    E-Print Network [OSTI]

    Herbert, Steven; Loh, Tian-Hong; Wassell, Ian; Rigelsford, Jonathan

    2014-10-17

    to what extent this analogy is valid. Specifically, the cavity time constant, electromagnetic isolation and electric field uniformity are investigated for typical vehicle and vehicle-like cavities. It is found that the time constant is a global property...

  6. A chondrule-like object captured by space-exposed aerogel on the international space station

    E-Print Network [OSTI]

    Meyers, Stephen R.

    A chondrule-like object captured by space-exposed aerogel on the international space station T (Bradley, 2004; Brownlee, 1985). On the other hand, MMs are collected by melting and filtering of Antarctic

  7. When Like Charges Attract: Interactions and Dynamics in Charge-Stabilized Colloidal

    E-Print Network [OSTI]

    Grier, David

    When Like Charges Attract: Interactions and Dynamics in Charge-Stabilized Colloidal Suspensions as protein folding, DNA complexation, and the stability of industrial suspensions. Since the goal highly charged colloidal spheres dispersed in simple electrolytes yield several surprises. Isolated pairs

  8. Two-loop self-energy correction in high-Z hydrogen-like ions

    E-Print Network [OSTI]

    V. A. Yerokhin; P. Indelicato; V. M. Shabaev

    2003-02-28

    A complete evaluation of the two-loop self-energy diagrams to all orders in Z\\alpha is presented for the ground state of H-like ions with Z\\ge 40.

  9. Self/Non-self Discrimination by Toll-like Receptor 9

    E-Print Network [OSTI]

    Mouchess, Maria Luz

    2011-01-01

    by Toll-like Receptor 9 by Maria Luz Mouchess A dissertationlike Receptor 9 By Maria Luz Mouchess Doctor of Philosophywork to my parents, Maria Luz Jaramillo Mouchess and Luis

  10. Managing prisons using a ‘business-like approach: a case study of the Scottish Prison Service 

    E-Print Network [OSTI]

    Sangkhanate, Assanee

    2012-06-26

    The primary aim of this research is to examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like health, ...

  11. Bioinformatic analysis of chicken chemokines, chemokine receptors, and Toll-like receptor 21 

    E-Print Network [OSTI]

    Wang, Jixin

    2006-10-30

    Chemokines triggered by Toll-like receptors (TLRs) are small chemoattractant proteins, which mainly regulate leukocyte trafficking in inflammatory reactions via interaction with G protein-coupled receptors. Forty-two ...

  12. Vehicle Technologies Office Merit Review 2014: Gasoline-Like Fuel Effects on Advanced Combustion Regimes

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about gasoline-like...

  13. Fracture characterization of clays and clay-like materials using flattened Brazilian Test

    E-Print Network [OSTI]

    Agaiby, Shehab Sherif Wissa

    2013-01-01

    Fracture mechanics has been used for many years to study the mechanical behavior of brittle and quasi-brittle materials like concrete, rock, wood, and ceramics. To date, the application of fracture mechanics to soils has ...

  14. Bat-like Mobile Robot for Tracking a Moving Obstacle Billur Barshan and Roman Kuc

    E-Print Network [OSTI]

    Barshan, Billur

    Bat-like Mobile Robot for Tracking a Moving Obstacle Billur Barshan and Roman Kuc Yale Uthversity the prey. Strategies employing either qualitative (prey is to the left or right) or quantitative (range

  15. Vehicle Technologies Office Merit Review 2015: Gasoline-Like Fuel Effects on Advanced Combustion Regimes

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about gasoline-like...

  16. EZH2 promotes a bi-lineage identity in basal-like breast cancer cells

    E-Print Network [OSTI]

    Granit, R. Z.

    The mechanisms regulating breast cancer differentiation state are poorly understood. Of particular interest are molecular regulators controlling the highly aggressive and poorly differentiated traits of basal-like breast ...

  17. Identifying the rotation rate and the presence of dynamic weather on extrasolar Earth-like planets from photometric observations

    E-Print Network [OSTI]

    E. Palle; Eric B. Ford; S. Seager; P. Montanes-Rodriguez; M. Vazquez

    2008-02-18

    With the recent discoveries of hundreds of extrasolar planets, the search for planets like Earth and life in the universe, is quickly gaining momentum. In the future, large space observatories could directly detect the light scattered from rocky planets, but they would not be able to spatially resolve a planet's surface. Using reflectance models and real cloud data from satellite observations, here we show that, despite Earth's dynamic weather patterns, the light scattered by the Earth to a hypothetical distant observer as a function of time contains sufficient information to accurately measure Earth's rotation period. This is because ocean currents and continents result in relatively stable averaged global cloud patterns. The accuracy of these measurements will vary with the viewing geometry and other observational constraints. If the rotation period can be measured with accuracy, data spanning several months could be coherently combined to obtain spectroscopic information about individual regions of the planetary surface. Moreover, deviations from a periodic signal can be used to infer the presence of relatively short-live structures in its atmosphere (i.e., clouds). This could provide a useful technique for recognizing exoplanets that have active weather systems, changing on a timescale comparable to their rotation. Such variability is likely to be related to the atmospheric temperature and pressure being near a phase transition and could support the possibility of liquid water on the planet's surface.

  18. Resonantly photo-pumped nickel-like erbium X-ray laser

    DOE Patents [OSTI]

    Nilsen, Joseph (Livermore, CA)

    1990-01-01

    A resonantly photo-pumped X-ray laser (10) that enhances the gain of seve laser lines that also lase because of collisional excitations and recombination processes, is described. The laser comprises an aluminum (12) and erbium (14) foil combination (16) that is driven by two beams (18, 20) of intense line focused (22, 24) optical laser radiation. Ground state nickel-like erbium ions (34) are resonantly photo-pumped by line emission from hydrogen-like aluminum ions (32).

  19. Wall-associated kinase-like polypeptide mediates nutritional status perception and response

    DOE Patents [OSTI]

    Yang, Zhenbiao; Karr, Stephen

    2014-02-11

    The disclosure relates to methods for modulating plant growth and organogenesis using dominant-negative receptor-like kinases. The disclosure further provides a method for increasing plant yield relative to corresponding wild type plants comprising modulating the expression in a plant of a nucleic acid encoding a Wall-Associated Kinase-like 14 polypeptide or a homolog thereof, and selecting for plants having increased yield or growth on a nutrient deficient substrate.

  20. o I would like to make a donation to the Center for Refugee and Disaster Response

    E-Print Network [OSTI]

    Scharfstein, Daniel

    o I would like to make a donation to the Center for Refugee and Disaster Response in the amount Affairs 615 N. Wolfe Street / Suite W1600 Baltimore, MD 21205-2179 You can also donate online at www.jhsph.edu/refugee/make_a_gift o I would like to receive e-mail updates The Center for Refugee and Disaster Response works with its

  1. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like iron

    E-Print Network [OSTI]

    Yerokhin, V A; Fritzsche, S

    2014-01-01

    We perform relativistic configuration-interaction calculations of the energy levels of the low-lying and core-excited states of beryllium-like iron, Fe$^{22+}$. The results include the QED contributions calculated by two different methods, the model QED operator approach and the screening-potential approach. The uncertainties of theoretical energies are estimated systematically. The predicted wavelengths of the K\\alpha transitions in beryllium-like iron improve previous theoretical results and compare favorably with the experimental data.

  2. Scattering of Klein–Gordon particles by a Kink-like potential

    SciTech Connect (OSTI)

    Hassanabadi, H.; Lu, Liangliang; Maghsoodi, E.; Liu, Guanghui; Zarrinkamar, S.

    2014-03-15

    The Klein–Gordon equation for the non-minimal vector and a scalar Kink-like potential is solved in terms of the hypergeometric functions. The scattering problem, i.e. the transmission and reflection coefficients, is studied as well. -- Highlights: •The Klein–Gordon equation for the non-minimal vector and a scalar Kink-like potential is solved. •We have calculated the corresponding transmission and reflection coefficients. •We discussed the behavior of the reflection and transmission coefficients vs. energy.

  3. Controlled synthesis of snowflake-like self-assemblies palladium nanostructures under microwave irradiation

    SciTech Connect (OSTI)

    Xie, Ting; Ma, Yue; Yang, Hanmin, E-mail: yanghanmin@hotmail.com; Li, Jinlin

    2013-08-01

    Graphical abstract: - Highlights: • We demonstrated the synthesis of snowflake-like palladium nanostructures for the first time. • We discussed the influencing factors on the synthesis of snowflake-like Pd nanostructures. • The molar ratio of H{sub 2}Pd{sub 4} to PVP at 5 is the optimal selection. • The growth process was discussed. - Abstract: Self-assembly snowflake-like palladium nanostructures were synthesized under microwave irradiation using H{sub 2}PdCl{sub 4} as precursor, benzyl alcohol as both solvent and reducing agent, and PVP as stabilizer. The Pd snowflake-like nanostructures were formed and then characterized by transmission electron microscopy (TEM) and X-ray powder diffraction. The TEM images showed that the Pd nano-snowflakes were self-assemblies organized by hundreds of small spherical nanoparticles. Pd snowflake-like nanostructures with well-defined shape and uniform size can be obtained by tuning the concentration of palladium precursor, the molar ratio of H{sub 2}PdCl{sub 4}/PVP, as well as the heating time by microwave irradiation. The possible growing process of the snowflake-like Pd structures was also proposed on the basis of investigating the properties of as-synthesized Pd nanostructures under different conditions.

  4. Cellular response to low dose radiation: Role of phosphatidylinositol-3 kinase like kinases

    SciTech Connect (OSTI)

    Balajee, A.S.; Meador, J.A.; Su, Y.

    2011-03-24

    It is increasingly realized that human exposure either to an acute low dose or multiple chronic low doses of low LET radiation has the potential to cause different types of cancer. Therefore, the central theme of research for DOE and NASA is focused on understanding the molecular mechanisms and pathways responsible for the cellular response to low dose radiation which would not only improve the accuracy of estimating health risks but also help in the development of predictive assays for low dose radiation risks associated with tissue degeneration and cancer. The working hypothesis for this proposal is that the cellular mechanisms in terms of DNA damage signaling, repair and cell cycle checkpoint regulation are different for low and high doses of low LET radiation and that the mode of action of phosphatidylinositol-3 kinase like kinases (PIKK: ATM, ATR and DNA-PK) determines the dose dependent cellular responses. The hypothesis will be tested at two levels: (I) Evaluation of the role of ATM, ATR and DNA-PK in cellular response to low and high doses of low LET radiation in simple in vitro human cell systems and (II) Determination of radiation responses in complex cell microenvironments such as human EpiDerm tissue constructs. Cellular responses to low and high doses of low LET radiation will be assessed from the view points of DNA damage signaling, DNA double strand break repair and cell cycle checkpoint regulation by analyzing the activities (i.e. post-translational modifications and kinetics of protein-protein interactions) of the key target proteins for PI-3 kinase like kinases both at the intra-cellular and molecular levels. The proteins chosen for this proposal are placed under three categories: (I) sensors/initiators include ATM ser1981, ATR, 53BP1, gamma-H2AX, MDC1, MRE11, Rad50 and Nbs1; (II) signal transducers include Chk1, Chk2, FANCD2 and SMC1; and (III) effectors include p53, CDC25A and CDC25C. The primary goal of this proposal is to elucidate the differences in cellular defense mechanisms between low and high doses of low LET radiation and to define the radiation doses where the cellular DNA damage signaling and repair mechanisms tend to shift. This information is critically important to address and advance some of the low dose research program objectives of DOE. The results of this proposed study will lead to a better understanding of the mechanisms for the cellular responses to low and high doses of low LET radiation. Further, systematic analysis of the role of PIKK signaling pathways as a function of radiation dose in tissue microenvironment will provide useful mechanistic information for improving the accuracy of radiation risk assessment for low doses. Knowledge of radiation responses in tissue microenvironment is important for the accurate prediction of ionizing radiation risks associated with cancer and tissue degeneration in humans.

  5. Tunable exchange bias-like effect in patterned hard-soft two-dimensional lateral composites with perpendicular magnetic anisotropy

    SciTech Connect (OSTI)

    Hierro-Rodriguez, A., E-mail: ahierro@fc.up.pt; Alvarez-Prado, L. M.; Martín, J. I.; Alameda, J. M. [Departamento de Física, Universidad de Oviedo, C/Calvo Sotelo S/N, 33007 Oviedo (Spain); Centro de Investigación en Nanomateriales y Nanotecnología—CINN (CSIC—Universidad de Oviedo—Principado de Asturias), Parque Tecnológico de Asturias, 33428 Llanera (Spain); Teixeira, J. M. [IN-IFIMUP, Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Rua Campo Alegre 687, 4169-007 Porto (Portugal); Vélez, M. [Departamento de Física, Universidad de Oviedo, C/Calvo Sotelo S/N, 33007 Oviedo (Spain)

    2014-09-08

    Patterned hard-soft 2D magnetic lateral composites have been fabricated by e-beam lithography plus dry etching techniques on sputter-deposited NdCo{sub 5} thin films with perpendicular magnetic anisotropy. Their magnetic behavior is strongly thickness dependent due to the interplay between out-of-plane anisotropy and magnetostatic energy. Thus, the spatial modulation of thicknesses leads to an exchange coupled system with hard/soft magnetic regions in which rotatable anisotropy of the thicker elements provides an extra tool to design the global magnetic behavior of the patterned lateral composite. Kerr microscopy studies (domain imaging and magneto-optical Kerr effect magnetometry) reveal that the resulting hysteresis loops exhibit a tunable exchange bias-like shift that can be switched on/off by the applied magnetic field.

  6. Self-energy correction to the hyperfine splitting and the electron g factor in hydrogen-like ions

    E-Print Network [OSTI]

    Yerokhin, Vladimir A

    2009-01-01

    The hyperfine structure (hfs) and the g factor of a bound electron are caused by external magnetic fields. For the hfs, the magnetic field is due to the nuclear spin. A uniform-in-space and constant-in-time magnetic field is used to probe the bound-electron g factor. The self-energy corrections to these effects are more difficult to evaluate than those to the Lamb shift. Here, we describe a numerical approach for both effects in the notoriously problematic regime of hydrogen-like bound systems with low nuclear charge numbers. The calculation is nonperturbative in the binding Coulomb field. Accurate numerical values for the remainder functions are provided for 2P states and for nS states with n=1,2,3.

  7. Microfluidic Systems Integrated Microfluidic Systems**

    E-Print Network [OSTI]

    Ismagilov, Rustem F.

    Microfluidic Systems Integrated Microfluidic Systems** Rustem F. Ismagilov* Keywords: analytical methods · enzymes · microfluidics · microreactors · protein structures Microfluidic systems use networks of channels thinner than a human hair to manipulate nanoliter volumes of re- agents. The goal of microfluidics

  8. Toward a thermo-hydrodynamic like description of Schrodinger equation via the Madelung formulation and Fisher information

    E-Print Network [OSTI]

    Eyal Heifetz; Eliahu Cohen

    2015-06-18

    We revisit the analogy suggested by Madelung between a non-relativistic time-dependent quantum particle, to a fluid system which is pseudo-barotropic, irrotational and inviscid. We first discuss the hydrodynamical properties of the Madelung description in general, and extract a pressure like term from the Bohm potential. We show that the existence of a pressure gradient force in the fluid description does not violate Ehrenfest's theorem since its expectation value is zero. We also point out that incompressibility of the fluid implies conservation of density along a fluid parcel trajectory and in 1D this immediately results in the non-spreading property of wave packets, as the sum of Bohm potential and an exterior potential must be either constant or linear in space. Next we relate to the hydrodynamic description a thermodynamic counterpart, taking the classical behavior of an adiabatic barotopric flow as a reference. We show that while the Bohm potential is not a positive definite quantity, as is expected from internal energy, its expectation value is proportional to the Fisher information whose integrand is positive definite. Moreover, this integrand is exactly equal to half of the square of the imaginary part of the momentum, as the integrand of the kinetic energy is equal to half of the square of the real part of the momentum. This suggests a relation between the Fisher information and the thermodynamic like internal energy of the Madelung fluid. Furthermore, it provides a physical linkage between the inverse of the Fisher information and the measure of disorder in quantum systems - in spontaneous adiabatic gas expansion the amount of disorder increases while the internal energy decreases.

  9. Amphitrite ornata Dehaloperoxidase (DHP): Investigations of Structural Factors That Influence the Mechanism of Halophenol Dehalogenation Using ;Peroxidase-like; Myoglobin Mutants and ;Myoglobin-like; DHP Mutants

    SciTech Connect (OSTI)

    Du, Jing; Huang, Xiao; Sun, Shengfang; Wang, Chunxue; Lebioda, Lukasz; Dawson, John H. (SC)

    2012-05-14

    Dehaloperoxidase (DHP), discovered in the marine terebellid polychaete Amphitrite ornata, is the first heme-containing globin with a peroxidase activity. The sequence and crystal structure of DHP argue that it evolved from an ancient O{sub 2} transport and storage globin. Thus, DHP retains an oxygen carrier function but also has the ability to degrade halophenol toxicants in its living environment. Sperm whale myoglobin (Mb) in the ferric state has a peroxidase activity {approx}10 times lower than that of DHP. The catalytic activity enhancement observed in DHP appears to have been generated mainly by subtle changes in the positions of the proximal and distal histidine residues that appeared during DHP evolution. Herein, we report investigations into the mechanism of action of DHP derived from examination of 'peroxidase-like' Mb mutants and 'Mb-like' DHP mutants. The dehalogenation ability of wild-type Mb is augmented in the peroxidase-like Mb mutants (F43H/H64L, G65T, and G65I Mb) but attenuated in the Mb-like T56G DHP variant. X-ray crystallographic data show that the distal His residues in G65T Mb and G65I are positioned {approx}0.3 and {approx}0.8 {angstrom}, respectively, farther from the heme iron compared to that in the wild-type protein. The H93K/T95H double mutant Mb with the proximal His shifted to the 'DHP-like' position has an increased peroxidase activity. In addition, a better dehaloperoxidase (M86E DHP) was generated by introducing a negative charge near His89 to enhance the imidazolate character of the proximal His. Finally, only minimal differences in dehalogenation activities are seen among the exogenous ligand-free DHP, the acetate-bound DHP, and the distal site blocker L100F DHP mutant. Thus, we conclude that binding of halophenols in the internal binding site (i.e., distal cavity) is not essential for catalysis. This work provides a foundation for a new structure-function paradigm for peroxidases and for the molecular evolution of the dual-function enzyme DHP.

  10. Quartz resonator processing system

    DOE Patents [OSTI]

    Peters, Roswell D. M. (Rustburg, VA)

    1983-01-01

    Disclosed is a single chamber ultra-high vacuum processing system for the oduction of hermetically sealed quartz resonators wherein electrode metallization and sealing are carried out along with cleaning and bake-out without any air exposure between the processing steps. The system includes a common vacuum chamber in which is located a rotatable wheel-like member which is adapted to move a plurality of individual component sets of a flat pack resonator unit past discretely located processing stations in said chamber whereupon electrode deposition takes place followed by the placement of ceramic covers over a frame containing a resonator element and then to a sealing stage where a pair of hydraulic rams including heating elements effect a metallized bonding of the covers to the frame.

  11. Protein folding with stochastic L-systems Gemma Danks1

    E-Print Network [OSTI]

    Stepney, Susan

    Protein folding with stochastic L-systems Gemma Danks1 , Susan Stepney1 and Leo Caves1 1 University-like structures. Models of protein folding vary in complexity and the amount of prior knowledge they contain). The energy landscape theory of protein folding (Onuchic et al., 1997) predicts a rugged funnel-like energy

  12. A Data Model for the Haystack Document Management System

    E-Print Network [OSTI]

    to advance the system in several directions. First, we analyze the problem of metadata representation would also like to express gratitude to my parents, my sister Asya, and the rest of my family my thesis. Finally, I would like to thank Natasha Skorodinsky whose fun company, along

  13. Diagnosis and prognosis for the maintenance of complex systems

    E-Print Network [OSTI]

    Pencolé, Yannick

    informative pieces of data to decide which type of maintenance operations is required. These types of systemsDiagnosis and prognosis for the maintenance of complex systems Pauline Ribot1,2 , Yannick Pencol´e1--This paper adresses the problem of maintenance of a complex and heterogeneous system like an aircraft

  14. EIS-0170: Columbia River System Operation Review, BPA Area

    Broader source: Energy.gov [DOE]

    The Columbia River System Operation Review Final Environmental Impact Statement (EIS) evaluates the potential impacts of four alternatives that represent the likely range of allocations between the Federal and non-Federal projects.

  15. Steam Power Partnership: Improving Steam System Efficiency Through Marketplace Partnerships 

    E-Print Network [OSTI]

    Jones, T.

    1997-01-01

    The Alliance to Save Energy, a national nonprofit organization based in Washington DC, and the U.S. Department of Energy are working with energy efficiency suppliers to promote the comprehensive upgrade of industrial steam systems. Like EPA's Green...

  16. Simulation Algorithms in Vehicle System Dynamics MARTIN ARNOLD

    E-Print Network [OSTI]

    be considered as integration platform for simulation in vehicle system dynamics. In the present report we report the analysis of distributed physical phenomena like the elastic deformation of car components

  17. Potential of Evaporative Cooling Systems for Buildings in India 

    E-Print Network [OSTI]

    Maiya, M. P.; Vijay, S.

    2010-01-01

    psychrometric chart for different cities in India like Ahmadabad, Jodhpur, Nagpur and New Delhi representing different climatic conditions of India. While satisfactorily comfort can be achieved at cool and dry weather conditions by evaporative cooling system...

  18. Design of an Audience Voting System for the Olympic Games

    E-Print Network [OSTI]

    be used for all kinds of judged sport events like diving, synchronised swimming, gymnastics, and ice. With the spreading of mobile phones and SMS, it is a nice idea to use such devices for a voting system. This could

  19. The Benefits of Student Research in Information Systems Security Education

    E-Print Network [OSTI]

    for Information Systems Security Studies and Research Code CSIc Naval Postgraduate School Monterey, CA 93943 for the younger students. For example, in fourth grade I painted some cardboard boxes to look like houses

  20. Electronic structure, morphology and emission polarization of enhanced symmetry InAs quantum-dot-like structures grown on InP substrates by molecular beam epitaxy

    SciTech Connect (OSTI)

    Mary?ski, A.; S?k, G.; Musia?, A.; Andrzejewski, J.; Misiewicz, J.; Gilfert, C.; Reithmaier, J. P.; Capua, A.; Karni, O.; Gready, D.; Eisenstein, G.; Atiya, G.; Kaplan, W. D.; Kölling, S.

    2013-09-07

    The optical and structural properties of a new kind of InAs/InGaAlAs/InP quantum dot (QD)-like objects grown by molecular beam epitaxy have been investigated. These nanostructures were found to have significantly more symmetrical shapes compared to the commonly obtained dash-like geometries typical of this material system. The enhanced symmetry has been achieved due to the use of an As{sub 2} source and the consequent shorter migration length of the indium atoms. Structural studies based on a combination of scanning transmission electron microscopy (STEM) and atom probe tomography (APT) provided detailed information on both the structure and composition distribution within an individual nanostructure. However, it was not possible to determine the lateral aspect ratio from STEM or APT. To verify the in-plane geometry, electronic structure calculations, including the energy levels and transition oscillator strength for the QDs have been performed using an eight-band k·p model and realistic system parameters. The results of calculations were compared to measured polarization-resolved photoluminescence data. On the basis of measured degree of linear polarization of the surface emission, the in-plane shape of the QDs has been assessed proving a substantial increase in lateral symmetry. This results in quantum-dot rather than quantum-dash like properties, consistent with expectations based on the growth conditions and the structural data.

  1. Vapor-like liquid coexistence densities affect the extension of the critical point's influence zone

    E-Print Network [OSTI]

    Rivera, Jose Luis; Guerra-Gonzalez, Roberto

    2015-01-01

    The critical point affects the coexistence behavior of the vapor-liquid equilibrium densities. The length of the critical influence zone is under debate because for some properties, like shear viscosity, the extension is only a few degrees, while for others, such as the density order parameter, the critical influence zone range covers up to hundreds of degrees below the critical temperature. Here we show that for a simple molecular potential of ethane, the critical influence zone covers a wide zone of tens of degrees (below the critical temperature) down to a transition temperature, at which the apparent critical influence zone vanishes and the transition temperature can be predicted through a pressure analysis of the coexisting bulk liquid phase. The liquid phases within the apparent critical influence zone show low densities, making them behave internally like their corresponding vapor phases. Therefore, the experimentally observed wide extension of the critical influence zone is due to a vapor-like effect ...

  2. Minimal conditions for the existence of a Hawking-like flux

    E-Print Network [OSTI]

    Barcelo, Carlos; Sonego, Sebastiano; Visser, Matt

    2010-01-01

    We investigate the minimal conditions that an asymptotically flat general relativistic spacetime must satisfy in order for a Hawking-like Planckian flux of particles to arrive at future null infinity. We demonstrate that there is no requirement that any sort of horizon form anywhere in the spacetime. We find that the irreducible core requirement is encoded in an approximately exponential "peeling" relationship between affine coordinates on past and future null infinity. As long as a suitable adiabaticity condition holds, then a Planck-distributed Hawking-like flux will arrive at future null infinity with temperature determined by the e-folding properties of the outgoing null geodesics. The temperature of the Hawking-like flux can slowly evolve as a function of time. We also show that the notion of "peeling" of null geodesics is distinct, and in general different, from the usual notion of "inaffinity" used in Hawking's definition of surface gravity.

  3. Network Biology of Tumor Stem-like Cells Identified a Regulatory Role of CBX5 in Lung Cancer

    E-Print Network [OSTI]

    Yu, Yau-Hua

    Mounting evidence links cancers possessing stem-like properties with worse prognosis. Network biology with signal processing mechanics was explored here using expression profiles of a panel of tumor stem-like cells (TSLCs). ...

  4. Evaluation and Interconversion of Various Indicator PCB Schemes for PCB and Dioxin-Like PCB Toxic Equivalent Levels in Fish

    E-Print Network [OSTI]

    Arhonditsis, George B.

    Evaluation and Interconversion of Various Indicator PCB Schemes for PCB and Dioxin-Like PCB ToxicPCB schemes in estimating total of PCB congeners (PCB) and dioxin-like PCB toxic equivalent (dl

  5. High Resolution Near-Infrared Spectroscopy of FUors and FUor-like stars

    E-Print Network [OSTI]

    Tom Greene; Colin Aspin; Bo Reipurth

    2008-01-27

    We present new high resolution (R=18,000) near-infrared spectroscopic observations of a sample of classical FU Orionis stars (FUors) and other young stars with FUor characteristics that are sources of Herbig-Haro flows. Spectra are presented for the region 2.203 - 2.236 microns which is rich in absorption lines sensitive to both effective temperatures and surface gravities of stars. Both FUors and FUor-like stars show numerous broad and weak unidentified spectral features in this region. Spectra of the 2.280 - 2.300 micron region are also presented, with the 2.2935 micron v=2-0 CO absorption bandhead being clearly the strongest feature seen in the spectra all FUors and Fuor-like stars. A cross-correlation analysis shows that FUor and FUor-like spectra in the 2.203 - 2.236 micron region are not consistent with late-type dwarfs, giants, nor embedded protostars. The cross-correlations also show that the observed FUor-like Herbig-Haro energy sources have spectra that are substantively similar to those of FUors. Both object groups also have similar near-infrared colors. The large line widths and double-peaked nature of the spectra of the FUor-like stars are consistent with the established accretion disk model for FUors, also consistent with their near-infrared colors. It appears that young stars with FUor-like characteristics may be more common than projected from the relatively few known classical FUors.

  6. THE OCCURRENCE RATE OF EARTH ANALOG PLANETS ORBITING SUN-LIKE STARS

    SciTech Connect (OSTI)

    Catanzarite, Joseph; Shao, Michael

    2011-09-10

    Kepler is a space telescope that searches Sun-like stars for planets. Its major goal is to determine {eta}{sub Earth}, the fraction of Sun-like stars that have planets like Earth. When a planet 'transits' or moves in front of a star, Kepler can measure the concomitant dimming of the starlight. From analysis of the first four months of those measurements for over 150,000 stars, Kepler's Science Team has determined sizes, surface temperatures, orbit sizes, and periods for over a thousand new planet candidates. In this paper, we characterize the period probability distribution function of the super-Earth and Neptune planet candidates with periods up to 132 days, and find three distinct period regimes. For candidates with periods below 3 days, the density increases sharply with increasing period; for periods between 3 and 30 days, the density rises more gradually with increasing period, and for periods longer than 30 days, the density drops gradually with increasing period. We estimate that 1%-3% of stars like the Sun are expected to have Earth analog planets, based on the Kepler data release of 2011 February. This estimate of {eta}{sub Earth} is based on extrapolation from a fiducial subsample of the Kepler planet candidates that we chose to be nominally 'complete' (i.e., no missed detections) to the realm of the Earth-like planets, by means of simple power-law models. The accuracy of the extrapolation will improve as more data from the Kepler mission are folded in. Accurate knowledge of {eta}{sub Earth} is essential for the planning of future missions that will image and take spectra of Earth-like planets. Our result that Earths are relatively scarce means that a substantial effort will be needed to identify suitable target stars prior to these future missions.

  7. Nonlinear Dynamics (2005) 41: 237273 c Springer 2005 Order Reduction of Parametrically Excited Nonlinear Systems

    E-Print Network [OSTI]

    Butcher, Eric A.

    2005-01-01

    coefficients such as the dynamics of rotating systems, like helicopter blades, asymmetric rotor-bearing systems and structures subjected to periodic loadings, etc. For the purpose of modal analysis, control and model test

  8. LIFE CYCLE ASSESSMENT OF A NOVEL BUILDING-INTEGRATED PHOTOVOLTAIC-THERMAL (BIPVT) SYSTEM

    E-Print Network [OSTI]

    Columbia University

    ), and energy payback time (EPBT). The results were compared with those of alternative/12. The studied renewable energy system consists of BIPVT panels, a balance of system (BOS as major indicators like global warming potential (GWP), cumulated energy demand (CED

  9. Self-oscillation in spin torque oscillator stabilized by field-like torque

    SciTech Connect (OSTI)

    Taniguchi, Tomohiro; Tsunegi, Sumito; Kubota, Hitoshi; Imamura, Hiroshi

    2014-04-14

    The effect of the field-like torque on the self-oscillation of the magnetization in spin torque oscillator with a perpendicularly magnetized free layer was studied theoretically. A stable self-oscillation at zero field is excited for negative ? while the magnetization dynamics stops for ??=?0 or ??>?0, where ? is the ratio between the spin torque and the field-like torque. The reason why only the negative ? induces the self-oscillation was explained from the view point of the energy balance between the spin torque and the damping. The oscillation power and frequency for various ? were also studied by numerical simulation.

  10. Large amplitude oscillation of magnetization in spin-torque oscillator stabilized by field-like torque

    SciTech Connect (OSTI)

    Taniguchi, Tomohiro Kubota, Hitoshi; Imamura, Hiroshi; Tsunegi, Sumito

    2015-05-07

    Oscillation frequency of spin torque oscillator with a perpendicularly magnetized free layer and an in-plane magnetized pinned layer is theoretically investigated by taking into account the field-like torque. It is shown that the field-like torque plays an important role in finding the balance between the energy supplied by the spin torque and the dissipation due to the damping, which results in a steady precession. The validity of the developed theory is confirmed by performing numerical simulations based on the Landau-Lifshitz-Gilbert equation.

  11. 5d $E_n$ Seiberg-Witten curve via toric-like diagram

    E-Print Network [OSTI]

    Sung-Soo Kim; Futoshi Yagi

    2015-06-16

    We consider 5d Sp(1) gauge theory with $E_{N_f+1}$ global symmetries based on toric(-like) diagram constructed from (p,q)-web with 7-branes. We propose a systematic procedure to compute the Seiberg-Witten curve for generic toric-like diagram. For $N_f=6,7$ flavors, we explicitly compute the Seiberg-Witten curves for 5d Sp(1) gauge theory, and show that these Seiberg-Witten curves agree with already known $E_{7,8}$ results. We also discuss a generalization of the Seiberg-Witten curve to rank-N cases.

  12. Magnetic configuration dependence of magnetoresistance in a Fe-porphyrin-like carbon nanotube spintronic device

    SciTech Connect (OSTI)

    Zeng, Jing; Chen, Ke-Qiu

    2014-01-20

    By using nonequilibrium Green's functions in combination with the density functional theory, we investigate the spin-dependent transport properties in a Fe-porphyrin-like carbon nanotube spintronic device. The results show that magnetoresistance ratio is strongly dependent on the magnetic configuration of the Fe-porphyrin-like carbon nanotube. Under the application of the external magnetic field, the magnetoresistance ratio of the device can be increased from about 19% to about 1020% by tuning the magnetic configuration in the device. Our results confirm that the magnetic configuration is a key factor for obtaining a high-performance spintronic device.

  13. High efficiency coaxial klystron-like relativistic backward wave oscillator with a premodulation cavity

    SciTech Connect (OSTI)

    Xiao Renzhen; Teng Yan; Chen Changhua; Sun Jun [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)

    2011-11-15

    The klystron-like relativistic backward wave oscillator (RBWO) combines the transition radiation with Cerenkov radiation and has demonstrated microwave output of high power and high efficiency. The coaxial slow wave structure device can produce microwave with a lower frequency in a smaller cross section. For the purpose of high efficiency, low frequency, and miniaturization, a coaxial klystron-like RBWO with a premodulation cavity is presented. Particle-in-cell simulations show that a microwave with power of 1.15 GW and frequency of 2.1 GHz is generated with conversion efficiency of 48%, whereas for the device with a reflector, the efficiency is 38%.

  14. Monodromy and Jacobi-like Relations for Color-Ordered Amplitudes

    E-Print Network [OSTI]

    N. E. J. Bjerrum-Bohr; Poul H. Damgaard; Thomas Sondergaard; Pierre Vanhove

    2010-03-11

    We discuss monodromy relations between different color-ordered amplitudes in gauge theories. We show that Jacobi-like relations of Bern, Carrasco and Johansson can be introduced in a manner that is compatible with these monodromy relations. The Jacobi-like relations are not the most general set of equations that satisfy this criterion. Applications to supergravity amplitudes follow straightforwardly through the KLT-relations. We explicitly show how the tree-level relations give rise to non-trivial identities at loop level.

  15. Metal oxide superconducting powder comprised of flake-like single crystal particles

    DOE Patents [OSTI]

    Capone, D.W.; Dusek, J.

    1994-10-18

    Powder of a ceramic superconducting material is synthesized such that each particle of the powder is a single crystal having a flake-like, nonsymmetric morphology such that the c-axis is aligned parallel to the short dimension of the flake. Nonflake powder is synthesized by the normal methods and is pressed into pellets or other shapes and fired for excessive times to produce a coarse grained structure. The fired products are then crushed and ground producing the flake-like powder particles which exhibit superconducting characteristics when aligned with the crystal lattice. 3 figs.

  16. Reynolds number dependence of drag reduction by rod-like polymers

    E-Print Network [OSTI]

    Yacine Amarouchene; Daniel Bonn; Hamid Kellay; Ting-Shek Lo; Victor S. L'vov; Itamar Procaccia

    2006-07-06

    We present experimental and theoretical results addressing the Reynolds number (Re) dependence of drag reduction by sufficiently large concentrations of rod-like polymers in turbulent wall-bounded flows. It is shown that when Re is small the drag is {\\em enhanced}. On the other hand when Re increases the drag is reduced and eventually the Maximal Drag Reduction (MDR) asymptote is attained. The theory is shown to be in excellent agreement with experiments, rationalizing and explaining all the universal and the non-universal aspects of drag reduction by rod-like polymers.

  17. LIKE A SUBURBAN DRONE by THE CAPITOL STEPS From Thank God I'm a Contra Boy

    E-Print Network [OSTI]

    Srinivasan, Aravind

    LIKE A SUBURBAN DRONE by THE CAPITOL STEPS From Thank God I'm a Contra Boy: Once upon a time you And a colonial home Like a suburban drone Ah you thought that life was meaningless joined the SDS you were so To have a cellular phone And a colonial home Like a suburban drone Ah you thought that life

  18. Toward high-precision values of the self energy of non-S states in hydrogen and hydrogen-like ions

    E-Print Network [OSTI]

    Eric-Olivier Le Bigot; Ulrich D. Jentschura; Paul Indelicato; Peter J. Mohr

    2004-10-22

    The method and status of a study to provide numerical, high-precision values of the self-energy level shift in hydrogen and hydrogen-like ions is described. Graphs of the self energy in hydrogen-like ions with nuclear charge number between 20 and 110 are given for a large number of states. The self-energy is the largest contribution of Quantum Electrodynamics (QED) to the energy levels of these atomic systems. These results greatly expand the number of levels for which the self energy is known with a controlled and high precision. Applications include the adjustment of the Rydberg constant and atomic calculations that take into account QED effects.

  19. Kalinella bambusicola gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel coccoid Chlorella-like subaerial alga

    E-Print Network [OSTI]

    -like subaerial alga from Southeast Asiapre_534 159..169 Jirí Neustupa,* Yvonne Nemcová, Marek Eliás and Pavel, Czech Republic SUMMARY The traditional green algal genus Chlorella, which com- prised coccoid algae lineage of the trebouxiophycean Watanabea clade, dissimilar from other members of this group. The alga has

  20. : Catechin, green tea component, causes caspase independent necrosis-like cell death in chronic myelogenous leukemia

    E-Print Network [OSTI]

    Huang, Ching-Tsan

    : Catechin, green tea component, causes caspase independent necrosis-like cell death in chronic: 710­5. 2. Ahmad N, Feyes DK, Nieminen AL, Agarwal R, Mukhtar H. Green tea constituent epigallocatechin Inst, 1997. 89: 1881­6. 3. Nakazato T, Ito K, Miyakawa Y et al. Catechin, a green tea component

  1. THINKING LIKE ARCHIMEDES WITH A 3D PRINTER OLIVER KNILL AND ELIZABETH SLAVKOVSKY

    E-Print Network [OSTI]

    Knill, Oliver

    THINKING LIKE ARCHIMEDES WITH A 3D PRINTER OLIVER KNILL AND ELIZABETH SLAVKOVSKY Abstract. We illustrate Archimedes' method using models produced with 3D printers. This approach allowed us to create- iment, we follow his steps by building models produced with modern 3D printers. Archimedes was an early

  2. Is a Machine Realization of Truly Human-Like Intelligence Achievable?

    E-Print Network [OSTI]

    McClelland, James L. "Jay"

    Is a Machine Realization of Truly Human-Like Intelligence Achievable? James L. McClelland Published a century of research on machine intelligence, humans remain far better than our strongest computing machines at a wide range of natural cognitive tasks, such as object recognition, lan- guage comprehension

  3. DESIGN AND PERFORMANCE OF A FISH FIN-LIKE PROPULSOR FOR AUVS George V. Lauder1

    E-Print Network [OSTI]

    Lauder, George V.

    embarked on a research program designed to develop a maneuvering propulsor for AUVs based on the mechanical1 DESIGN AND PERFORMANCE OF A FISH FIN-LIKE PROPULSOR FOR AUVS George V. Lauder1 , Peter Madden1 of Mechanical and Aerospace Engineering, 707 22nd Street, Staughton Hall The George Washington University

  4. Efficient weakly-radiative wireless energy transfer: An EIT-like approach

    E-Print Network [OSTI]

    of renewable energy, energy storage and management, etc. In particular, there is a substantial recent interest [1­5] in enabling efficient and safe wireless energy transfer, motivated by the increased 0003Efficient weakly-radiative wireless energy transfer: An EIT-like approach Rafif E. Hamam

  5. Star-like polymer click-functionalized with small capping molecules: an initial investigation into

    E-Print Network [OSTI]

    Lin, Zhiqun

    , as well as being examined by proton nuclear magnetic resonance (1 H-NMR), Fourier transform infrared -pentylbiphenyl (5CB). Structure and phase behavior were evaluated by AFM and optical imaging. Star-like PAA display technology,3,4,20 photonics,5,21,22 optics,3,5,17,23 sensors and metamaterials.3,17 Furthermore

  6. ENHANCEMENT OF SUPERCONDUCTING Tc IN Pd-H LIKE COMPOUNDS BY OPTICAL PHONONS

    E-Print Network [OSTI]

    Boyer, Edmond

    1227 ENHANCEMENT OF SUPERCONDUCTING Tc IN Pd-H LIKE COMPOUNDS BY OPTICAL PHONONS J. P. BURGER and D.450 1. Introduction. - The high superconducting tran- sition temperatures recently observed in Pd [1 interaction inhibiting superconductivity in pure Pd. As the density of states in Pd-H is rather similar [5

  7. ORIGINAL PAPER Speech Preference is Associated with Autistic-Like Behavior

    E-Print Network [OSTI]

    Vouloumanos, Athena

    Research Council 2001). But indices of autism-like behaviors in the first year of life remain elusive- cies-typical perceptual biases that direct their attention to socially relevant stimuli such as voices non-speech and non-faces (Butterfield and Siperstein 1970; Johnson et al. 1991; Valenza et al. 1996

  8. Static vacuum solutions from convergent null data expansions at space-like infinity

    E-Print Network [OSTI]

    Static vacuum solutions from convergent null data expansions at space-like infinity Helmut Abstract We study formal expansions of asymptotically flat solutions to the static vacuum field equations characterization of all asymptotically flat solutions to the static vacuum field equations. PACS: 04.20.Ex, 04

  9. Implementing TMN-like Management Services in a TINA Compliant Architecture

    E-Print Network [OSTI]

    Griffin, David

    Implementing TMN-like Management Services in a TINA Compliant Architecture: A Case Study Abstract TINA aims to provide an architecture to enable telecommunications networks to support the flex in an integrated fashion. While the specifications in the TINA Service Architecture are well advanced, network

  10. Light-Like Noncommutativity, Light-Front Quantization and New Light on UV/IR Mixing

    E-Print Network [OSTI]

    M. M. Sheikh-Jabbari; A. Tureanu

    2010-10-02

    We revisit the problem of quantizing field theories on noncommutative Moyal spacetime with \\emph{light-like} noncommutativity. To tackle the issues arising from noncommuting and hence nonlocal time, we argue that for this case light-front quantization procedure should be employed. In this appropriate quantization scheme we perform the non-planar loop analysis for the light-like noncommutative field theories. One of the important and peculiar features of light-front quantization is that the UV cutoff of the light-cone Hamiltonian manifests itself as an IR cutoff for the light-cone momentum, $p^+$. Due to this feature, the naive results of covariant quantization for the light-like case allude to the absence of the UV/IR mixing in the light-front quantization. However, by a careful analysis of non-planar loop integrals we show that this is not the case and the UV/IR mixing persists. In addition, we argue in favour of the perturbative unitarity of light-like noncommutative field theories in the light-front quantization scheme.

  11. What is History? History is more than simply fact-gathering. Like all

    E-Print Network [OSTI]

    Saldin, Dilano

    What is History? History is more than simply fact-gathering. Like all of the liberal arts, history to formulate conclusions, test results and communicate new ideas. Career Opportunities History majors make good of history requires the ability to investigate, analyze and communicate complex interrelationships

  12. Introduction The use of ethanol as a gasoline additive is likely to

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    Introduction The use of ethanol as a gasoline additive is likely to increase in the near future investigators have developed mathematical models for predicting the effect of ethanol (added to gasoline at 10 these models provide valuable insight into the potential ground water impacts of ethanol in gasoline

  13. Discrete molecular dynamics studies of the folding of a protein-like model

    E-Print Network [OSTI]

    Buldyrev, Sergey

    Discrete molecular dynamics studies of the folding of a protein-like model Nikolay V Dokholyan1 to resolve in time the folding of model proteins in computer simulations. Different computational approaches). Results: We used the recently proposed approach of Zhou and Karplus to study the folding of a protein

  14. Extraordinary Transmission of Three-Dimensional Crescent-like Holes Arrays

    E-Print Network [OSTI]

    an extraordinary optical transmission in this non-planar perforated periodic array of 3DCLH when the electric fieldExtraordinary Transmission of Three-Dimensional Crescent-like Holes Arrays Yang Shen & Mingkai Liu peak is insensitive with the incident angles and sensitive with the angle between the electric field

  15. DEVELOPMENT OF FISH-LIKE SWIMMING BEHAVIOURS FOR AN AUTONOMOUS ROBOTIC FISH

    E-Print Network [OSTI]

    Hu, Huosheng

    DEVELOPMENT OF FISH-LIKE SWIMMING BEHAVIOURS FOR AN AUTONOMOUS ROBOTIC FISH Jindong Liu, Ian Dukes CO4 3SQ, United Kingdom Email: {jliua, idukes, rrknig, hhu}@essex.ac.uk Keywords: Robotic fish the fish movement into several basic behaviours, namely straight cruise, cruise in turn and sharp turn

  16. A Methodology of Modelling Fish-like Swim Patterns for Robotic Fish

    E-Print Network [OSTI]

    Hu, Huosheng

    A Methodology of Modelling Fish-like Swim Patterns for Robotic Fish Jindong Liu and Huosheng Hu@essex.ac.uk Abstract-- This paper presents a novel modelling methodology for our robotic fish, which considers the relative movement of the tail to the head in order to model variable swimming patterns for robotic fish

  17. 2006 Nature Publishing Group A Devonian tetrapod-like fish and the

    E-Print Network [OSTI]

    Bechtold, Jill

    © 2006 Nature Publishing Group A Devonian tetrapod-like fish and the evolution of the tetrapod body vertebrates (tetrapods) to lobe-finned fish (sarcopterygians) is well established, but the origin of major changes. Here we report the discovery of a well-preserved species of fossil sarcopterygian fish from

  18. Campus Art Walk Like many other colleges and universities, the campus

    E-Print Network [OSTI]

    Matrajt, Graciela

    Campus Art Walk Like many other colleges and universities, the campus shared by Cascadia of significant and beautiful works of art. The collection, located both inside and outside buildings and sculptures. Art on the CCC/UWB campus is the result of generous donations from private citizens

  19. Isatin Compounds as Noncovalent SARS Coronavirus 3C-like Protease Inhibitors

    E-Print Network [OSTI]

    Luhua, Lai

    , such as human rhinovirus (HRV) 3C protease. Therefore, HRV 3C protease inhibitors may also be potential HRV inhibitors were effective SARS CoV 3C-like protease inhibitors.13 They focused mainly on the isatin C-4, C-5, C-7, and N substituents, aiming at the two sites (P1, P2) that were important for HRV

  20. Osmotically induced deformation of capsid-like icosahedral vesicles Gaelle Bealle,ab

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Osmotically induced deformation of capsid-like icosahedral vesicles Gaelle Bealle,ab Jacques We report the osmotic deformation of micron-size catanionic vesicles with icosahedral symmetry (20 at low osmotic pressure gradients across the bilayer, or spherical for outwards gradients. Above

  1. On the Levy-walk Nature of Human Mobility: Do Humans Walk like Monkeys?

    E-Print Network [OSTI]

    Young, R. Michael

    such as the power-law distributions of human inter-contact times and that the simulation performance of mobileOn the Levy-walk Nature of Human Mobility: Do Humans Walk like Monkeys? Injong Rhee, Minsu Shin, Seongik Hong, Kyunghan Lee and Song Chong Abstract--We report that human walk patterns closely follow Levy

  2. Structural Basis for the Acyltransferase Activity of Lecithin:Retinol Acyltransferase-like Proteins*S

    E-Print Network [OSTI]

    Palczewski, Krzysztof

    , Ohio 44106 and the ¶ Department of Medicine, Columbia University, New York, New York 10032 Background, a representative member of this group, plays a key role in regulating triglyceride accumulation and energy acyltransferase-like proteins and provide evidence for their alternative robust lipid-dependent acyltransferase

  3. Engineered proteins stick like glue --even in water1 www.sciencedaily.com2

    E-Print Network [OSTI]

    South Bohemia, University of

    Engineered proteins stick like glue -- even in water1 www.sciencedaily.com2 3 Shellfish such as mussels and barnacles secrete very sticky proteins that help them cling to rocks or ship hulls, even naturally sticky mussel proteins as well as a bacterial protein found in biofilms --7 slimy layers formed

  4. SHARE: 0 0Like Share Tweet Adjust text size: NEWS CATEGORIES

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    · Ubuntu Software Center Features a Game that Costs $50,000 (37,000) Advanced Power & Solar www REVIEWS >> MEET THE EDITORS >> 43k Find us on Google+ 190kLike Follow @softpedia TRENDING TODAY Home so you can place them on a sleeve for your smart phone ." "When the phone is out of battery power

  5. Compiler Analysis to Support Compiled Communication for HPF--like programs Xin Yuan \\Lambda

    E-Print Network [OSTI]

    Compiler Analysis to Support Compiled Communication for HPF--like programs Xin Yuan \\Lambda Dept at compile time, the compiled communication technique greatly improves the communication performance for communication patterns that are known at compile time. In order to support com­ piled communication

  6. Damage to nearby divertor components of ITER-like devices during giant ELMs and disruptions

    E-Print Network [OSTI]

    Harilal, S. S.

    Damage to nearby divertor components of ITER-like devices during giant ELMs and disruptions. Fusion 50 (2010) 115004 (7pp) doi:10.1088/0029-5515/50/11/115004 Damage to nearby divertor components. The simulation results of the integrated modelling indicate a significant potential damage of the divertor nearby

  7. Crystal Structure of Arcelin-5, a Lectin-like Defense Protein from Phaseolus vulgaris*

    E-Print Network [OSTI]

    Hamelryck, Thomas

    arcelin and -amylase inhibitor. In these so-called lectin-like proteins, respectively one and two loops essential for the sugar-binding capabilities of the legume lectins are deleted. The -amylase inhibitor inhibits -amy- lases of mammalian and insect origin but does not inhibit plant -amylases. Arcelin is only

  8. A green astro-comb for Earth-like exoplanet searches Chih-Hao Li,1,*

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    optical spectrum analyzer and the insert spectrum is measured with a high resolution Fourier transform-like stars using periodic Doppler shift of stellar spectrum require better than 10 cm/s precision spectrograph is accurate to spectrum provides sufficient SNR to realize

  9. Testing quantum-like models of judgment for question order effect

    E-Print Network [OSTI]

    Thomas Boyer-Kassem; Sébastien Duchêne; Éric Guerci

    2015-08-25

    Lately, so-called "quantum" models, based on parts of the mathematics of quantum mechanics, have been developed in decision theory and cognitive sciences to account for seemingly irrational or paradoxical human judgments. We consider here some such quantum-like models that address question order effects, i.e. cases in which given answers depend on the order of presentation of the questions. Models of various dimensionalities could be used, can the simplest ones be empirically adequate? From the quantum law of reciprocity, we derive new empirical predictions that we call the Grand Reciprocity equations, that must be satisfied by several existing quantum-like models, in their non-degenerate versions. Using substantial existing data sets, we show that these non-degenerate versions fail the GR test in most cases, which means that, if quantum-like models of the kind considered here are to work, it can only be in their degenerate versions. However, we suggest that the route of degenerate models is not necessarily an easy one, and we argue for more research on the empirical adequacy of degenerate quantum-like models in general.

  10. Jet-like circulations occur in the `simple' geometries of gas planets and Earth's

    E-Print Network [OSTI]

    #12;Jet-like circulations occur in the `simple' geometries of gas planets and Earth's liquid to barotropize jets => life cycles of BC instability. large-scale PV gradients act as source of eddy entrophy The Jet Stream Conundrum Baldwin, Rhines, Huang & McIntyre, Nature 2007 #12;For Earth's oceans, density

  11. Improved Confinement in JET High {beta} Plasmas with an ITER-Like Wall

    E-Print Network [OSTI]

    Challis, C D; Beurskens, M; Buratti, P; Delabie, E; Drewelow, P; Frassinetti, L; Giroud, C; Hawkes, N; Hobirk, J; Joffrin, E; Keeling, D; King, D B; Maggi, C F; Mailloux, J; Marchetto, C; McDonald, D; Nunes, I; Pucella, G; Saarelma, S; Simpson, J

    2015-01-01

    The replacement of the JET carbon wall (C-wall) by a Be/W ITER-like wall (ILW) has affected the plasma energy confinement. To investigate this, experiments have been performed with both the C-wall and ILW to vary the heating power over a wide range for plasmas with different shapes.

  12. ConTrack: Finding the most likely pathways between brain regions using diffusion tractography

    E-Print Network [OSTI]

    Wandell, Brian A.

    to identify the most likely pathways connecting two regions. In a series of experiments using human data, we for measuring white matter pathways in the living human brain. DFT is often used to discover new pathways algorithms. Keywords: diffusion imaging, fiber tractography, MT+, corpus callosum, optic radiation Citation

  13. Potential Threats from a Likely Nuclear Power Plant Accident: a Climatological Trajectory Analysis

    E-Print Network [OSTI]

    Chen, Shu-Hua

    in the near future as insecure nuclear power plants with a high risk of accidents remain in the regionPotential Threats from a Likely Nuclear Power Plant Accident: a Climatological Trajectory Analysis at the Metsamor Nuclear Power Plant would influence all of Turkey. Furthermore, vulnerable regions in Turkey after

  14. ORIGINAL ARTICLE Chronic dim light at night provokes reversible depression-like

    E-Print Network [OSTI]

    Nelson, Randy J.

    .96; published online 24 July 2012 Keywords: BDNF; cytokine; hamster; hippocampus; light pollution; Phodopus in the United States and Europe experience nightly light pollution.8 Such unnatural conditions almost certainlyORIGINAL ARTICLE Chronic dim light at night provokes reversible depression-like phenotype: possible

  15. WHY MECHANICAL DESIGN CANNOT BE LIKE VLSI DESIGN Daniel E Whitney

    E-Print Network [OSTI]

    Whitney, Daniel

    4/4/96 1 WHY MECHANICAL DESIGN CANNOT BE LIKE VLSI DESIGN by Daniel E Whitney MIT ABSTRACT mechanical design from approaching the ideal of VLSI design methods. The argument is accompanied by examples and brief histories of the evolution of VLSI design methods and attempts to systematize mechanical design

  16. A Vervaat-like path transformation for the re ected Brownian bridge

    E-Print Network [OSTI]

    Henri Poincaré -Nancy-Université, Université

    A Vervaat-like path transformation for the re ected Brownian bridge conditioned on its local time transformation for the re ected Brownian bridge conditioned on its local time at 0: up to random shifts, this process equals the two processes constructed from a Brownian bridge and a Brownian excursion by adding

  17. On The Method of Precise Calculations Of Energy Levels of Hydrogen-like Atoms

    E-Print Network [OSTI]

    N. A. Boikova; Y. N. Tyukhtyaev; R. N. Faustov

    2003-11-22

    We describe a method for deriving logarithmic corrections in the mass ratio to the S-level of a hydrogen-like atom. With this method, a number of new corrections of this type are calculated analitically for the first time.

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

    DOE Patents [OSTI]

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

    1992-05-19

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

  19. Phenothiazines Inhibit Hepatitis C Virus Entry, Likely by Increasing the Fluidity of Cholesterol-Rich Membranes

    E-Print Network [OSTI]

    Phenothiazines Inhibit Hepatitis C Virus Entry, Likely by Increasing the Fluidity of Cholesterol hepatitis C virus (HCV), more effective therapies are still urgently needed. We and others previously inhibitors. Hepatitis C virus (HCV) infects at least 130 million people worldwide and is the major cause

  20. Study: Among Street-Involved Youth, Women Twice as Likely to be Infected with Hepatitis C

    E-Print Network [OSTI]

    Kavanagh, Karen L.

    Study: Among Street-Involved Youth, Women Twice as Likely to be Infected with Hepatitis C Vancouver the hepatitis C virus (HCV), according to a new study by the BC Centre for Excellence in HIV/AIDS (BC surveillance data, on a national scale, men have higher rates of hepatitis C diagnosis than women (36.8 per 100

  1. Structure of the hepatitis E virus-like particle suggests mechanisms for virus assembly

    E-Print Network [OSTI]

    Tao, Yizhi Jane

    Structure of the hepatitis E virus-like particle suggests mechanisms for virus assembly (received for review May 1, 2009) Hepatitis E virus (HEV), a small, non-enveloped RNA virus in the family Hepeviridae, is associated with endemic and epidemic acute viral hepatitis in developing countries. Our 3.5-Å

  2. Implementing Bubblegrams: The Use of Haar-Like Features for Human-Robot

    E-Print Network [OSTI]

    Implementing Bubblegrams: The Use of Haar-Like Features for Human-Robot Interaction James E. Young Email: {jyoung;ehud;boyd}@cpsc.ucalgary.ca Abstract-- Bubblegrams - a human-robot interaction (HRI) technique - uses Mixed Reality (MR) to allow collocated hu- mans and robots to interact directly by visually

  3. Some Like it Hot? Thermal Feedback for Mobile Devices Graham Wilson, Martin Halvey, Stephen A. Brewster

    E-Print Network [OSTI]

    Brewster, Stephen

    perception and this is not the focus of this paper. Fundamental HCI research needs to be conducted we focus on in this paper. There are many potential uses for thermal feedback; the following usageSome Like it Hot? Thermal Feedback for Mobile Devices Graham Wilson, Martin Halvey, Stephen A

  4. CONGRESSIONAL RECORD --SENATES9468 September 19, 2001 Meanwhile, it is likely that there could be

    E-Print Network [OSTI]

    Bernstein, Daniel

    Currently, supply does not seem to be an issue. There is a downward trend in the price of distillates, likely due to the glut of jet fuel. Gasoline is moving upward but cer- tainly not abnormally. If there is a move from air travel to travel by car, that would seem to encourage an increase in gasoline. If however

  5. DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES

    E-Print Network [OSTI]

    Boyer, Edmond

    DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES burdens of wind turbines. To detect damage of rotor blades, several research projects focus on an acoustic, rotor blade, wind turbine INTRODUCTION There are several publications of non destructive damage

  6. A Coarse-Grained Protein Model in a Water-like Solvent

    E-Print Network [OSTI]

    Buldyrev, Sergey

    A Coarse-Grained Protein Model in a Water-like Solvent Sumit Sharma1 *, Sanat K. Kumar1 , Sergey V an explicit atom description of proteins in solvent can be computationally expensive. On the other hand, coarse-grained protein models in implicit solvent miss essential features of the hydrophobic effect

  7. The habitability and detection of Earth-like planets orbiting cool white L. Fossati1

    E-Print Network [OSTI]

    The habitability and detection of Earth-like planets orbiting cool white dwarfs. L. Fossati1 orbiting white dwarfs. As a white dwarf cools from 6000 K to 4000 K, a planet orbiting at 0.01 AU would with the persistence of complex life. Po- larisation due to a terrestrial planet in the CHZ of a cool white dwarf

  8. http://www.markelowitz.com/exobiology.htm The Search for Earth-like

    E-Print Network [OSTI]

    Walter, Frederick M.

    planets at hot Jupiters - massive gas giants close to the star (but cool around M dwarfs). A few planetaryhttp://www.markelowitz.com/exobiology.htm #12;The Search for Earth-like Planets ·0.95m telescope;Kepler Planets #12;Kepler Planet Summary · As of 10/1/2011 · 1235 planet candidates · 25 confirmed

  9. Ntru-like Public Key Cryptosystems beyond Dedekind Domain Up to Alternative Algebra

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Ntr¯u-like Public Key Cryptosystems beyond Dedekind Domain Up to Alternative Algebra Ehsan Malekian) as well as non-associative Octonions (a power-associative and alternative algebra of dimension eight over: Public Key Cryptography, Ntr¯u, Alternative algebra, lattice based cryptogra- phy, non

  10. PRINT CHARACTERS LIKE THIS CORRECT INCORRECT Consent to Request Consumer Report & Investigative Consumer Report Information

    E-Print Network [OSTI]

    New Mexico, University of

    (FACIS®) Office of Inspector General Sanctions (OIG) Other Please List: I acknowledge receiptPRINT CHARACTERS LIKE THIS CORRECT INCORRECT Consent to Request Consumer Report & Investigative Consumer Report Information Applicant's First Name or Initial Last Name I understand that The University

  11. Improved recognition of native-like protein structures using a family of designed sequences

    E-Print Network [OSTI]

    Koehl, Patrice

    Improved recognition of native-like protein structures using a family of designed sequences Patrice on computational protein design. The model structure is used as input to design a family of low free energy Koehl* and Michael Levitt Department of Structural Biology, Fairchild Building, Stanford University

  12. ACCELERATED COMMUNICATION Aspects of Dioxin Toxicity Are Mediated by Interleukin 1-Like

    E-Print Network [OSTI]

    Bradfield, Christopher A.

    ACCELERATED COMMUNICATION Aspects of Dioxin Toxicity Are Mediated by Interleukin 1-Like Cytokines, 2005 ABSTRACT Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (dioxin) re- sults in a broad spectrum of toxic effects. Most, if not all, of these responses are dependent upon the binding of dioxin to the aryl

  13. 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

  14. High surface area diamond-like carbon electrodes grown on vertically aligned carbon nanotubes

    E-Print Network [OSTI]

    Bristol, University of

    High surface area diamond-like carbon electrodes grown on vertically aligned carbon nanotubes H packed forests of vertically aligned multiwall carbon nanotubes (VACNTs). The DLC:VACNT composite film and high corrosion resistance [13,14]. Other type of dopants, including nickel and boron, also result

  15. Origami-like Folded MEMS for Realization of TIMU: Fabrication Technology and Initial

    E-Print Network [OSTI]

    Chen, Zhongping

    single-axis sensors and then folding them into a 3-D Fig. 1. Commercial MEMS IMUs Performance Fig. 2 for assembly of the integrated MEMS sensor cluster in a 3-D configuration, or folding in a 3-D shape. FoldedOrigami-like Folded MEMS for Realization of TIMU: Fabrication Technology and Initial Demonstration

  16. Wrinkle development analysis in thin sail-like structures using MITC shell finite elements

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wrinkle development analysis in thin sail-like structures using MITC shell finite elements D submitted to Finite Elements in Analysis and Design September 20, 2012 hal-00733994,version1-20Sep2012 Author manuscript, published in "Finite Elements in Analysis and Design 64 (2013) 48-64" DOI : 10.1016/j

  17. The Challenges of Hardware Synthesis from C-like Languages Stephen A. Edwards

    E-Print Network [OSTI]

    The Challenges of Hardware Synthesis from C-like Languages Stephen A. Edwards Department of integrated circuits we can fabricate imposes a continuing need for ways to de- scribe complex hardware as specification languages for digital hardware. Yet, tools based on this idea have seen little commercial interest

  18. Microfluidic Assembly of Janus-Like Dimer Capsules Annie Xi Lu,

    E-Print Network [OSTI]

    Raghavan, Srinivasa

    . Microscale aqueous droplets bearing the biopolymer chitosan are generated in situ within a chip and rotation in an external rotating magnetic field, much like a magnetic stir bar. The overall approach magnetic chains of microparticles.3 However, the process used to make the chains required manual

  19. Testing minimal lepton flavor violation with extra vector-like leptons at the LHC

    E-Print Network [OSTI]

    Eilam Gross; Daniel Grossman; Yosef Nir; Ofer Vitells

    2010-01-17

    Models of minimal lepton flavor violation where the seesaw scale is higher than the relevant flavor scale predict that all lepton flavor violation is proportional to the charged lepton Yukawa matrix. If extra vector-like leptons are within the reach of the LHC, it will be possible to test the resulting predictions in ATLAS/CMS.

  20. Excitation energies and transition rates in the 3d2 states of Ca-like ions

    E-Print Network [OSTI]

    Johnson, Walter R.

    Excitation energies and transition rates in the 3d2 states of Ca-like ions U. I. Safronova,1 W. R October 2000; published 14 February 2001 Energies, transition probabilities, and lifetimes are calculated matrix elements. The resulting transition energies and lifetimes are compared with experimental values

  1. Using Groupings of Static Analysis Alerts to Identify Files Likely to Contain Field Failures

    E-Print Network [OSTI]

    Sherriff, Mark S.

    of a field failure. Our technique uses singular value decomposition to generate groupings of static analysisUsing Groupings of Static Analysis Alerts to Identify Files Likely to Contain Field Failures Mark S@csc.ncsu.edu ABSTRACT In this paper, we propose a technique for leveraging historical field failure records

  2. The Threading Program of PAINT PAINT is a PAirwise INteraction based Threading algorithm like RAPTOR(1).

    E-Print Network [OSTI]

    Zhang, Yang

    1 The Threading Program of PAINT PAINT is a PAirwise INteraction based Threading algorithm like between cores of proteins, and gap penalty are considered in PAINT. The score function of PAINT function and can be solved by integer linear programming. In PAINT, the structure of a protein is composed

  3. Frosh senator ignores `Rubio for VP' push Tea partyers, establishment like what they see in young

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Frosh senator ignores `Rubio for VP' push Tea partyers, establishment like what they see in young the dapper, articulate and ambitious Miami native -- who is admired by tea party activists and the party] is somebody that is beloved by the tea party who holds statewide office in a swing state and, oh, is Hispanic

  4. Evolution of modular intraflagellar transport from a coatomer-like progenitor

    E-Print Network [OSTI]

    Sali, Andrej

    Evolution of modular intraflagellar transport from a coatomer-like progenitor Teunis J. P. van Dama of Pharmaceutical Chemistry, and e California Institute for Quantitative Biosciences, University of California, San Francisco, CA 94158 Edited by Russell F. Doolittle, University of California at San Diego, La Jolla, CA

  5. Structural Basis of Viral RNA Recognition by RIG-I-Like Receptors 

    E-Print Network [OSTI]

    Lu, Cheng

    2012-10-19

    RIG-I-like receptors (RLRs), RIG-I, MDA5, and LGP2, are a family of innate immune receptors that recognize viral RNA in the cytoplasm and initiate antiviral responses including the induction of type I interferons and other ...

  6. CARBON SEQUESTRATION IN ARABLE SOILS IS LIKELY TO INCREASE NITROUS OXIDE EMISSIONS, OFFSETTING

    E-Print Network [OSTI]

    CARBON SEQUESTRATION IN ARABLE SOILS IS LIKELY TO INCREASE NITROUS OXIDE EMISSIONS, OFFSETTING in strategies for climate protection. 1. Introduction Carbon sequestration has been highlighted recently concentration of carbon dioxide (CO2) in the atmo- sphere include sequestering carbon (C) in soils

  7. System Effectiveness

    SciTech Connect (OSTI)

    Powell, Danny H; Elwood Jr, Robert H

    2011-01-01

    An effective risk assessment system is needed to address the threat posed by an active or passive insider who, acting alone or in collusion, could attempt diversion or theft of nuclear material. It is critical that a nuclear facility conduct a thorough self-assessment of the material protection, control, and accountability (MPC&A) system to evaluate system effectiveness. Self-assessment involves vulnerability analysis and performance testing of the MPC&A system. The process should lead to confirmation that mitigating features of the system effectively minimize the threat, or it could lead to the conclusion that system improvements or upgrades are necessary to achieve acceptable protection against the threat. Analysis of the MPC&A system is necessary to understand the limits and vulnerabilities of the system to internal threats. Self-assessment helps the facility be prepared to respond to internal threats and reduce the risk of theft or diversion of nuclear material. MSET is a self-assessment or inspection tool utilizing probabilistic risk assessment (PRA) methodology to calculate the system effectiveness of a nuclear facility's MPC&A system. MSET analyzes the effectiveness of an MPC&A system based on defined performance metrics for MPC&A functions based on U.S. and international best practices and regulations. A facility's MC&A system can be evaluated at a point in time and reevaluated after upgrades are implemented or after other system changes occur. The total system or specific subareas within the system can be evaluated. Areas of potential performance improvement or system upgrade can be assessed to determine where the most beneficial and cost-effective improvements should be made. Analyses of risk importance factors show that sustainability is essential for optimal performance. The analyses reveal where performance degradation has the greatest detrimental impact on total system risk and where performance improvements have the greatest reduction in system risk. The risk importance factors show the amount of risk reduction achievable with potential upgrades and the amount of risk reduction actually achieved after upgrades are completed. Applying the risk assessment tool gives support to budget prioritization by showing where budget support levels must be sustained for MC&A functions most important to risk. Results of the risk assessment are also useful in supporting funding justifications for system improvements that significantly reduce system risk.

  8. Challenging the Devadasi System from a Framework of Intersectionality 

    E-Print Network [OSTI]

    Anne, Mrudula

    2014-12-17

    . 5 BACKGROUND The origins of the Devadasi system in the Indian subcontinent date back to 850 AD. According to Sriram (2007), Devadasis in the early periods were looked upon as a group of women well-versed in cultural arts like dance, music..., decorating and working on flowers. The second group took care of the cultural part like dance and music in the temple. Caste was not a factor and women from different castes like Brahman’s, and Kshatriya’s were a part of this system as well (Sriram, 2007...

  9. Computer System,

    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 following commentsMethodsCompositional6 Computational

  10. XCPU2 process management system

    SciTech Connect (OSTI)

    Ionkov, Latchesar [Los Alamos National Laboratory; Van Hensbergen, Eric [IBM AUSTIN RESEARCH LAB

    2009-01-01

    Xcpu2 is a new process management system that allows the users to specify custom file system for a running job. Most cluster management systems enforce single software distribution running on all nodes. Xcpu2 allows programs running on the cluster to work in environment identical to the user's desktop, using the same versions of the libraries and tools the user installed locally, and accessing the configuration file in the same places they are located on the desktop. Xcpu2 builds on our earlier work with the Xcpu system. Like Xcpu, Xcpu2's process management interface is represented as a set of files exported by a 9P file server. It supports heterogeneous clusters and multiple head nodes. Unlike Xcpu, it uses pull instead of push model. In this paper we describe the Xcpu2 clustering model, its operation and how the per-job filesystem configuration can be used to solve some of the common problems when running a cluster.

  11. Critical residues involved in Toll-like receptor 4 activation by cationic lipid nanocarriers are not located at the lipopolysaccharide-binding interface

    E-Print Network [OSTI]

    Lonez, Caroline; Irvine, Kate L.; Pizzuto, Malvina; Schmidt, Boris I.; Gay, Nick J.; Ruysschaert, Jean-Marie; Gangloff, Monique; Bryant, Clare E.

    2015-05-09

    -1970. doi: 10.1016/j.bcp.2007.03.006 36 22 43. Kedmi,R, Ben-Arie,N, Peer,D (2010). The systemic toxicity of positively charged lipid 1 nanoparticles and the role of Toll-like receptor 4 in immune activation. Biomaterials 31: 6867-2 6875. doi: 10... .1016/j.biomaterials.2010.05.027 3 44. Uto,T, Akagi,T, Yoshinaga,K, Toyama,M, Akashi,M, Baba,M (2011). The induction of innate 4 and adaptive immunity by biodegradable poly(gamma-glutamic acid) nanoparticles via a 5 TLR4 and MyD88 signaling pathway...

  12. Visualization of Power Systems Final Project Report

    E-Print Network [OSTI]

    in this report was sponsored by the Power Systems Engineering Research Center (PSERC) and the U.S. DOE through, and by the U.S. DOE CERTS program. We would also like to thank the many industrial advisors who helped

  13. Dynamical real numbers and living systems

    E-Print Network [OSTI]

    Dhurjati Prasad Datta

    2010-01-11

    Recently uncovered second derivative discontinuous solutions of the simplest linear ordinary differential equation define not only an nonstandard extension of the framework of the ordinary calculus, but also provide a dynamical representation of the ordinary real number system. Every real number can be visualized as a living cell -like structure, endowed with a definite evolutionary arrow. We discuss the relevance of this extended calculus in the study of living systems. We also present an intelligent version of the Newton's first law of motion.

  14. Interpretation of Vector-like Quark Searches: Heavy Gluons in Composite Higgs Models

    E-Print Network [OSTI]

    Juan Pedro Araque; Nuno Filipe Castro; Jose Santiago

    2015-07-20

    Pair production of new vector-like quarks in pp collisions is considered model independent as it is usually dominated by QCD production. We discuss the interpretation of vector-like quark searches in the case that QCD is not the only relevant production mechanism for the new quarks. In particular we consider the effect of a new massive color octet vector boson with sizeable decay branching ratio into the new quarks. We pay special attention to the sensitivity of the Large Hadron Collider experiments, both in run-1 and early run-2, to differences in the kinematical distributions from the different production mechanisms. We have found that even though there can be significant differences in some kinematical distributions at the parton level, the differences are washed out at the reconstruction level. Thus, the published experimental results can be reinterpreted in models with heavy gluons by simply rescaling the production cross section.

  15. Pseudoscalar Portal Dark Matter and New Signatures of Vector-like Fermions

    E-Print Network [OSTI]

    JiJi Fan; Savvas M. Koushiappas; Greg Landsberg

    2015-07-24

    Fermionic dark matter interacting with the Standard Model sector through a pseudoscalar portal could evade the direct detection constraints while preserving a WIMP miracle. We study the LHC constraints on the pseudoscalar production in simplified models with the pseudoscalar either dominantly coupled to b quarks or tau leptons and explore their implications for the GeV excesses in gamma ray observations. We also investigate models with new vector-like fermions that could realize the simplified models of pseudoscalar portal dark matter. These models yield new decay channels and signatures of vector-like fermions, for instance, bbb, btautau, and tautautau resonances. Some of the signatures have already been strongly constrained by the existing LHC searches and the parameter space fitting the gamma ray excess is further restricted. On the other hand, the pure tau-rich final state is only weakly constrained so far due to the small electroweak production rate.

  16. Ultrafast field control of symmetry, reciprocity, and reversibility in buckled graphene-like materials

    E-Print Network [OSTI]

    Kelardeh, Hamed Koochaki; Stockman, Mark I

    2015-01-01

    We theoretically show that buckled two-dimensional graphene-like materials (silicene and germanene) subjected to a femtosecond strong optical pulse can be controlled by the optical field component normal to their plane. In such strong fields, these materials are predicted to exhibit non-reciprocal reflection, optical rectification and generation of electric currents both parallel and normal to the in-plane field direction. Reversibility of the conduction band population is also field- and carrier-envelope phase controllable. There is a net charge transfer along the material plane that is also dependent on the normal field component. Thus a graphene-like buckled material behaves analogously to a field-effect transistor controlled and driven by the electric field of light with subcycle (femtosecond) speed.

  17. Electron structure, Zitterbewegung, and the new non-linear Dirac-like equation

    E-Print Network [OSTI]

    M. Pavsic; Erasmo Recami; W. A. Rodrigues Jr

    1998-03-14

    The recent literature shows a renewed interest, with various independent approaches, in the classical theories for spin. Considering the possible interest of those results, at least for the electron case, we purpose in this paper to explore their physical and mathematical meaning, by the natural and powerful language of Clifford algebras (which, incidentally, will allow us to unify those different approaches). In such theories, the ordinary electron is in general associated to the mean motion of a point-like "constituent" Q, whose trajectory is a cylindrical helix. We find, in particular, that the object Q obeys a new, non-linear Dirac-like equation, such that --when averaging over an internal cycle (which corresponds to linearization)-- it transforms into the ordinary Dirac equation (valid for the electron as a whole).

  18. LPM Interference and Cherenkov-like Gluon Bremsstrahlung in DenseMatter

    SciTech Connect (OSTI)

    Majumder, Abhijit; Wang, Xin-Nian

    2005-07-26

    Gluon bremsstrahlung induced by multiple parton scattering in a finite dense medium has a unique angular distribution with respect to the initial parton direction. A dead-cone structure with an opening angle; theta2{sub 0}; approx 2(1-z)/(zLE) for gluons with fractional energy z arises from the Landau-Pomeran chuck-Migdal (LPM) interference. In a medium where the gluon's dielectric constant is; epsilon>1, the LPM interference pattern is shown to become Cherenkov-like with an increased opening angle determined by the dielectric constant$/cos2/theta{sub c}=z+(1-z)//epsilon$. For a large dielectric constant/epsilon; gg 1+2/z2LE, the corresponding total radiative parton energy loss is about twice that from normal gluon bremsstrahlung. Implications of this Cherenkov-like gluon bremsstrahlung to the jet correlation pattern in high-energy heavy-ion collisions is discussed.

  19. AN ENIGMATIC POINT-LIKE FEATURE WITHIN THE HD 169142 TRANSITIONAL DISK ,

    SciTech Connect (OSTI)

    Biller, Beth A.; Males, Jared; Morzinski, Katie; Close, Laird M.; Follette, Katherine B.; Hinz, Philip M.; Rodigas, Timothy; Weinberger, Alycia; Juhász, Attila; Lacour, Sylvestre; Henning, Thomas; Pott, Jörg-Uwe; Köhler, Rainer; Bonnefoy, Mickaël

    2014-09-01

    We report the detection of a faint point-like feature possibly related to ongoing planet-formation in the disk of the transition disk star HD 169142. The point-like feature has a ?mag(L) ? 6.4, at a separation of ?0.''11 and position angle ?0°. Given its lack of an H or K{sub S} counterpart despite its relative brightness, this candidate cannot be explained by purely photospheric emission and must be a disk feature heated by an as yet unknown source. Its extremely red colors make it highly unlikely to be a background object, but future multi-wavelength follow up is necessary for confirmation and characterization of this feature.

  20. Distinguishing a SM-like MSSM Higgs boson from SM Higgs boson at muon collider

    E-Print Network [OSTI]

    Jai Kumar Singhal; Sardar Singh; Ashok K Nagawat

    2005-07-26

    We explore the possibility of distinguishing the SM-like MSSM Higgs boson from the SM Higgs boson via Higgs boson pair production at future muon collider. We study the behavior of the production cross section in SM and MSSM with Higgs boson mass for various choices of MSSM parameters tan \\beta and m\\sub A. We observe that at fixed CM energy, in the SM, the total cross section increases with the increase in Higgs boson mass whereas this trend is reversed for the MSSM case. The changes that occur for the MSSM case in comparison to the SM predictions are quantified in terms of the relative percentage deviation in cross section. The observed large deviations in cross section for different choices of Higgs mass suggest that the measurements of the cross section could possibly distinguish the SM-like MSSM Higgs boson from the SM Higgs boson.

  1. 3D climate modeling of Earth-like extrasolar planets orbiting different types of host stars

    E-Print Network [OSTI]

    Godolt, M; Hamann-Reinus, A; Kitzmann, D; Kunze, M; Langematz, U; von Paris, P; Patzer, A B C; Rauer, H; Stracke, B

    2015-01-01

    The potential habitability of a terrestrial planet is usually defined by the possible existence of liquid water on its surface. The potential presence of liquid water depends on many factors such as, most importantly, surface temperatures. The properties of the planetary atmosphere and its interaction with the radiative energy provided by the planet's host star are thereby of decisive importance. In this study we investigate the influence of different main-sequence stars upon the climate of Earth-like extrasolar planets and their potential habitability by applying a 3D Earth climate model accounting for local and dynamical processes. The calculations have been performed for planets with Earth-like atmospheres at orbital distances where the total amount of energy received from the various host stars equals the solar constant. In contrast to previous 3D modeling studies, we include the effect of ozone radiative heating upon the vertical temperature structure of the atmospheres. The global orbital mean results o...

  2. MAGNETIC BRAKING FORMULATION FOR SUN-LIKE STARS: DEPENDENCE ON DIPOLE FIELD STRENGTH AND ROTATION RATE

    SciTech Connect (OSTI)

    Matt, Sean P.; Pinsonneault, Marc H.; Greene, Thomas P. E-mail: kmac@ucar.edu E-mail: thomas.p.greene@nasa.gov

    2012-08-01

    We use two-dimensional axisymmetric magnetohydrodynamic simulations to compute steady-state solutions for solar-like stellar winds from rotating stars with dipolar magnetic fields. Our parameter study includes 50 simulations covering a wide range of relative magnetic field strengths and rotation rates, extending from the slow- and approaching the fast-magnetic-rotator regimes. Using the simulations to compute the angular momentum loss, we derive a semi-analytic formulation for the external torque on the star that fits all of the simulations to a precision of a few percent. This formula provides a simple method for computing the magnetic braking of Sun-like stars due to magnetized stellar winds, which properly includes the dependence on the strength of the magnetic field, mass loss rate, stellar radius, surface gravity, and spin rate, and which is valid for both slow and fast rotators.

  3. Plasma spraying method for forming diamond and diamond-like coatings

    DOE Patents [OSTI]

    Holcombe, Cressie E. (Farragut, TN); Seals, Roland D. (Oak Ridge, TN); Price, R. Eugene (Knoxville, TN)

    1997-01-01

    A method and composition for the deposition of a thick layer (10) of diamond or diamond-like material. The method includes high temperature processing wherein a selected composition (12) including at least glassy carbon is heated in a direct current plasma arc device to a selected temperature above the softening point, in an inert atmosphere, and is propelled to quickly quenched on a selected substrate (20). The softened or molten composition (18) crystallizes on the substrate (20) to form a thick deposition layer (10) comprising at least a diamond or diamond-like material. The selected composition (12) includes at least glassy carbon as a primary constituent (14) and may include at least one secondary constituent (16). Preferably, the secondary constituents (16) are selected from the group consisting of at least diamond powder, boron carbide (B.sub.4 C) powder and mixtures thereof.

  4. Plasma spraying method for forming diamond and diamond-like coatings

    DOE Patents [OSTI]

    Holcombe, C.E.; Seals, R.D.; Price, R.E.

    1997-06-03

    A method and composition is disclosed for the deposition of a thick layer of diamond or diamond-like material. The method includes high temperature processing wherein a selected composition including at least glassy carbon is heated in a direct current plasma arc device to a selected temperature above the softening point, in an inert atmosphere, and is propelled to quickly quenched on a selected substrate. The softened or molten composition crystallizes on the substrate to form a thick deposition layer comprising at least a diamond or diamond-like material. The selected composition includes at least glassy carbon as a primary constituent and may include at least one secondary constituent. Preferably, the secondary constituents are selected from the group consisting of at least diamond powder, boron carbide (B{sub 4}C) powder and mixtures thereof. 9 figs.

  5. Steam generator support system

    DOE Patents [OSTI]

    Moldenhauer, James E. (Simi Valley, CA)

    1987-01-01

    A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances.

  6. Steam generator support system

    DOE Patents [OSTI]

    Moldenhauer, J.E.

    1987-08-25

    A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source is disclosed. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances. 4 figs.

  7. Optical limiting and bleaching effects in a suspension of onion-like carbon

    SciTech Connect (OSTI)

    Mikheev, Gen M; Bulatov, D L; Mogileva, T N; Kuznetsov, V L; Moseenkov, S I; Ishchenko, A V

    2009-04-30

    We have studied the effect of nanosecond laser pulses ({lambda} = 1064 nm) on the optical properties of onion-like carbon (OLC) prepared by high-temperature vacuum annealing of detonation nanodiamond and dispersed in N,N-dimethylformamide (DMF). The results demonstrate that, under low-intensity irradiation, the OLC suspension displays optical limiting behaviour. Increasing the incident intensity leads to bleaching of the suspension in the visible and near-IR spectral regions. (nanostructures)

  8. Measurement of electron neutrino quasielastic and quasielastic-like scattering on hydrocarbon at $\\langle E_{\

    E-Print Network [OSTI]

    Wolcott, J; Bellantoni, L; Bercellie, A; Betancourt, M; Bodek, A; Bravar, A; Budd, H; Carneiro, M F; Chvojka, J; da Motta, H; Devan, J; Dytman, S A; Diaz, G A; Eberly, B; Felix, J; Fields, L; Fine, R; Galindo, R; Gallagher, H; Ghosh, A; Golan, T; Gran, R; Harris, D A; Higuera, A; Kiveni, M; Kleykamp, J; Kordosky, M; Le, T; Maher, E; Manly, S; Mann, W A; Marshall, C M; Caicedo, D A Martinez; McFarland, K S; McGivern, C L; McGowan, A M; Messerly, B; Miller, J; Mislivec, A; Morfin, J G; Mousseau, J; Muhlbeier, T; Naples, D; Nelson, J K; Norrick, A; Osta, J; Paolone, V; Park, J; Patrick, C E; Perdue, G N; Rakotondravohitra, L; Ransome, R D; Ray, H; Ren, L; Rimal, D; Rodrigues, P A; Ruterbories, D; Schellman, H; Schmitz, D W; Salinas, C J Solano; Tagg, N; Tice, B G; Valencia, E; Walton, T; Wospakrik, M; Zavala, G; Zhang, D; Ziemer, B P

    2015-01-01

    The first direct measurement of electron-neutrino quasielastic and quasielastic-like scattering on hydrocarbon in the few-GeV region of incident neutrino energy has been carried out using the MINERvA detector in the NuMI beam at Fermilab. The flux-integrated differential cross sections in electron production angle, electron energy and $Q^{2}$ are presented. The ratio of the quasielastic, flux-integrated differential cross section in $Q^{2}$ for $\

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

    E-Print Network [OSTI]

    Lozano-Robledo, Alvaro

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

  10. Thermodynamics of the Three-dimensional Black Hole with a Coulomb-like Field

    E-Print Network [OSTI]

    Alexis Larranaga; Luz Angela Garcia

    2008-11-21

    In this paper, we study the thermodynamical properties of the (2+1)dimensional black hole with a Coulomb-like electric field and the differential form of the first law of thermodynamics is derived considering a virtual displacement of its event horizon. This approach shows that it is possible to give a thermodynamical interpretation to the field equations near the horizon. The Lambda=0 solution is studied and its interesting thermodynamical properties are commented.

  11. The Sun-like activity of the solar twin 18 Scorpii

    E-Print Network [OSTI]

    Jeffrey C. Hall; Gregory W. Henry; G. Wesley Lockwood

    2007-03-16

    We present the results of 10 yr of complementary spectroscopic and photometric observations of the solar twin 18 Scorpii. We show that over the course of its ~7 year chromospheric activity cycle, 18 Sco's brightness varies in the same manner as the Sun's and with a likely brightness variation of 0.09%, similar to the 0.1% decadal variation in the total solar irradiance.

  12. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like argon

    E-Print Network [OSTI]

    Yerokhin, V A; Fritzsche, S

    2014-01-01

    Relativistic configuration-interaction calculations have been performed for the energy levels of the low-lying and core-excited states of beryllium-like argon, Ar$^{14+}$. These calculations include the one-loop QED effects as obtained by two different methods, the screening-potential approach as well as the model QED operator approach. The calculations are supplemented by a systematic estimation of uncertainties of theoretical predictions.

  13. NATURAL GAS FROM SHALE: Questions and Answers It Seems Like Shale Gas Came Out

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department of EnergyNEW YORK STATENASA EnhancedIt Seems Like

  14. Baryon Asymmetry and Dark Matter Through the Vector-Like Portal

    E-Print Network [OSTI]

    Pavel Fileviez Perez; Mark B. Wise

    2013-05-14

    A possible connection between the cosmological baryon asymmetry, dark matter and vector-like fermions is investigated. In this scenario an asymmetry generated through baryogenesis or leptogenesis (in the vector-like matter sector) connects the baryon asymmetry to the dark matter density. We present explicit renormalizable models where this connection occurs. These models have asymmetric dark matter and a significant invisible Higgs decay width to dark matter particles is possible. We refer to this type of scenario as the vector-like portal. In some asymmetric dark matter models there are potential naturalness issues for the low energy effective theory. We address that issue in the models we consider by starting with a Lagrangian that is the most general renormalizable one consistent with the gauge (and discrete) symmetries and showing the low energy effective theory automatically has the required form as a consequence of the symmetries of the full theory. We show that the mass of the dark matter candidate is predicted in these scenarios.

  15. Vapor-like liquid coexistence densities affect the extension of the critical point's influence zone

    E-Print Network [OSTI]

    Jose Luis Rivera; Homero Nicanor-Guzman; Roberto Guerra-Gonzalez

    2015-04-16

    The critical point affects the coexistence behavior of the vapor-liquid equilibrium densities. The length of the critical influence zone is under debate because for some properties, like shear viscosity, the extension is only a few degrees, while for others, such as the density order parameter, the critical influence zone range covers up to hundreds of degrees below the critical temperature. Here we show that for a simple molecular potential of ethane, the critical influence zone covers a wide zone of tens of degrees (below the critical temperature) down to a transition temperature, at which the apparent critical influence zone vanishes and the transition temperature can be predicted through a pressure analysis of the coexisting bulk liquid phase. The liquid phases within the apparent critical influence zone show low densities, making them behave internally like their corresponding vapor phases. Therefore, the experimentally observed wide extension of the critical influence zone is due to a vapor-like effect due to low bulk liquid phase densities.

  16. K-Shell Photoionization of B-like Oxygen (O$^{3+}$) Ions: Experiment and Theory

    E-Print Network [OSTI]

    McLaughlin, B M; Cubaynes, D; Shorman, M M Al; Guilbaud, S; Sakho, I; Blancard, C; Gharaibeh, M F

    2014-01-01

    Absolute cross sections for the {\\it K}-shell photoionization of boron-like (B-like) O$^{3+}$ ions were measured by employing the ion-photon merged-beam technique at the SOLEIL synchrotron-radiation facility in Saint-Aubin, France. High-resolution spectroscopy with E/$\\Delta$E $\\approx$ 5000 ($\\approx$ 110 meV, FWHM) was achieved with photon energy from 540 eV up to 600 eV. Several theoretical approaches, including R-Matrix, Multi-Configuration Dirac-Fock and Screening Constant by Unit Nuclear Charge were used to identify and characterize the strong 1s $\\rightarrow$ 2p and the weaker 1s $\\rightarrow$ 3p resonances observed in the {\\it K}-shell spectra of this ion. The trend of the integrated oscillator strength and autoionisation width (natural line width) of the strong $\\rm 1s \\rightarrow 2p$ resonances along the first few ions of the B-like sequence is discussed.

  17. SOLAR MAGNETIZED TORNADOES: ROTATIONAL MOTION IN A TORNADO-LIKE PROMINENCE

    SciTech Connect (OSTI)

    Su, Yang; Veronig, Astrid; Temmer, Manuela; Vanninathan, Kamalam; Gömöry, Peter; Wang, Tongjiang; Gan, Weiqun; Li, YouPing

    2014-04-10

    Su et al. proposed a new explanation for filament formation and eruption, where filament barbs are rotating magnetic structures driven by underlying vortices on the surface. Such structures have been noticed as tornado-like prominences when they appear above the limb. They may play a key role as the source of plasma and twist in filaments. However, no observations have successfully distinguished rotational motion of the magnetic structures in tornado-like prominences from other motions such as oscillation and counter-streaming plasma flows. Here we report evidence of rotational motions in a tornado-like prominence. The spectroscopic observations in two coronal lines were obtained from a specifically designed Hinode/EIS observing program. The data revealed the existence of both cold and million-degree-hot plasma in the prominence leg, supporting the so-called prominence-corona transition region. The opposite velocities at the two sides of the prominence and their persistent time evolution, together with the periodic motions evident in SDO/AIA dark structures, indicate a rotational motion of both cold and hot plasma with a speed of ?5 km s{sup –1}.

  18. Who Will More Likely Buy PHEV: A Detailed Market Segmentation Analysis

    SciTech Connect (OSTI)

    Lin, Zhenhong [ORNL] [ORNL; Greene, David L [ORNL] [ORNL

    2010-01-01

    Understanding the diverse PHEV purchase behaviors among prospective new car buyers is key for designing efficient and effective policies for promoting new energy vehicle technologies. The ORNL MA3T model developed for the U.S. Department of Energy is described and used to project PHEV purchase probabilities by different consumers. MA3T disaggregates the U.S. household vehicle market into 1458 consumer segments based on region, residential area, driver type, technology attitude, home charging availability and work charging availability and is calibrated to the EIA s Annual Energy Outlook. Simulation results from MA3T are used to identify the more likely PHEV buyers and provide explanations. It is observed that consumers who have home charging, drive more frequently and live in urban area are more likely to buy a PHEV. Early adopters are projected to be more likely PHEV buyers in the early market, but the PHEV purchase probability by the late majority consumer can increase over time when PHEV gradually becomes a familiar product. Copyright Form of EVS25.

  19. The Notch ligand Delta-like 1 integrates inputs from TGFbeta/Activin and Wnt pathways

    SciTech Connect (OSTI)

    Bordonaro, Michael Tewari, Shruti Atamna, Wafa Lazarova, Darina L.

    2011-06-10

    Unlike the well-characterized nuclear function of the Notch intracellular domain, it has been difficult to identify a nuclear role for the ligands of Notch. Here we provide evidence for the nuclear function of the Notch ligand Delta-like 1 in colon cancer (CC) cells exposed to butyrate. We demonstrate that the intracellular domain of Delta-like 1 (Dll1icd) augments the activity of Wnt signaling-dependent reporters and that of the promoter of the connective tissue growth factor (CTGF) gene. Data suggest that Dll1icd upregulates CTGF promoter activity through both direct and indirect mechanisms. The direct mechanism is supported by co-immunoprecipitation of endogenous Smad2/3 proteins and Dll1 and by chromatin immunoprecipitation analyses that revealed the occupancy of Dll1icd on CTGF promoter sequences containing a Smad binding element. The indirect upregulation of CTGF expression by Dll1 is likely due to the ability of Dll1icd to increase Wnt signaling, a pathway that targets CTGF. CTGF expression is induced in butyrate-treated CC cells and results from clonal growth assays support a role for CTGF in the cell growth-suppressive role of butyrate. In conclusion, integration of the Notch, Wnt, and TGFbeta/Activin signaling pathways is in part mediated by the interactions of Dll1 with Smad2/3 and Tcf4.

  20. Detection of gravitational-wave bursts with chirplet-like template families

    E-Print Network [OSTI]

    Eric Chassande-Mottin; Miriam Miele; Satya Mohapatra; Laura Cadonati

    2010-05-28

    Gravitational Wave (GW) burst detection algorithms typically rely on the hypothesis that the burst signal is "locally stationary", that is it changes slowly with frequency. Under this assumption, the signal can be decomposed into a small number of wavelets with constant frequency. This justifies the use of a family of sine-Gaussian templates in the Omega pipeline, one of the algorithms used in LIGO-Virgo burst searches. However there are plausible scenarios where the burst frequency evolves rapidly, such as in the merger phase of a binary black hole and/or neutron star coalescence. In those cases, the local stationarity of sine-Gaussians induces performance losses, due to the mismatch between the template and the actual signal. We propose an extension of the Omega pipeline based on chirplet-like templates. Chirplets incorporate an additional parameter, the chirp rate, to control the frequency variation. In this paper, we show that the Omega pipeline can easily be extended to include a chirplet template bank. We illustrate the method on a simulated data set, with a family of phenomenological binary black-hole coalescence waveforms embedded into Gaussian LIGO/Virgo-like noise. Chirplet-like templates result in an enhancement of the measured signal-to-noise ratio.

  1. Power system

    DOE Patents [OSTI]

    Hickam, Christopher Dale (Glasford, IL)

    2008-03-18

    A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

  2. Successful Reproduction Requires the Function of Arabidopsis YELLOW STRIPE-LIKE1 and YELLOW STRIPE-LIKE3 Metal-Nicotianamine Transporters in Both Vegetative and Reproductive Structures

    SciTech Connect (OSTI)

    Chu, H.; Chiecko, J; Punshon, T; Lanzirotti, A; Lahner, B; Salt, D; Walker, E

    2010-01-01

    Several members of the Yellow Stripe-Like (YSL) family of proteins are transporters of metals that are bound to the metal chelator nicotianamine or the related set of mugineic acid family chelators known as phytosiderophores. Here, we examine the physiological functions of three closely related Arabidopsis (Arabidopsis thaliana) YSL family members, AtYSL1, AtYSL2, and AtYSL3, to elucidate their role(s) in the allocation of metals into various organs of Arabidopsis. We show that AtYSL3 and AtYSL1 are localized to the plasma membrane and function as iron transporters in yeast functional complementation assays. By using inflorescence grafting, we show that AtYSL1 and AtYSL3 have dual roles in reproduction: their activity in the leaves is required for normal fertility and normal seed development, while activity in the inflorescences themselves is required for proper loading of metals into the seeds. We further demonstrate that the AtYSL1 and AtYSL2 proteins, when expressed from the AtYSL3 promoter, can only partially rescue the phenotypes of a ysl1ysl3 double mutant, suggesting that although these three YSL transporters are closely related and have similar patterns of expression, they have distinct activities in planta. In particular, neither AtYSL1 nor AtYSL2 is able to functionally complement the reproductive defects exhibited by ysl1ysl3 double mutant plants.

  3. Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis

    SciTech Connect (OSTI)

    Bajo, Ken-ichi; Olinger, Chad T.; Jurewicz, Amy J.G.; Burnett, Donald S.; Sakaguchi, Isao; Suzuki, Taku; Itose, Satoru; Ishihara, Morio; Uchino, Kiichiro; Wieler, Rainer; Yurimoto, Hisayoshi

    2015-10-01

    The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains the physics of ion solid interactions involving the solar wind. Thus, they provide an experimental basis for revealing ancient solar activities represented by solar-wind implants in natural samples. We measured the first depth profile of ?He in a collector; the shallow implantation (peaking at <20 nm) required us to use sputtered neutral mass spectrometry with post-photoionization by a strong field. The solar wind He fluence calculated using depth profiling is ~8.5 x 10¹? cm?². The shape of the solar wind ?He depth profile is consistent with TRIM simulations using the observed ?He velocity distribution during the Genesis mission. It is therefore likely that all solar-wind elements heavier than H are completely intact in this Genesis collector and, consequently, the solar particle energy distributions for each element can be calculated from their depth profiles. Ancient solar activities and space weathering of solar system objects could be quantitatively reproduced by solar particle implantation profiles.

  4. DIRECT IMAGING OF A COLD JOVIAN EXOPLANET IN ORBIT AROUND THE SUN-LIKE STAR GJ 504

    SciTech Connect (OSTI)

    Kuzuhara, M.; Tamura, M.; Kandori, R.; Hori, Y.; Suzuki, R.; Suenaga, T.; Takahashi, Y. H.; Kwon, J.; Kudo, T.; Janson, M.; Brandt, T. D.; Spiegel, D.; Burrows, A.; Turner, E. L.; Moro-Martin, A.; Thalmann, C.; Biller, B.; Henning, T.; Carson, J.; McElwain, M. W.; and others

    2013-09-01

    Several exoplanets have recently been imaged at wide separations of >10 AU from their parent stars. These span a limited range of ages (<50 Myr) and atmospheric properties, with temperatures of 800-1800 K and very red colors (J - H > 0.5 mag), implying thick cloud covers. Furthermore, substantial model uncertainties exist at these young ages due to the unknown initial conditions at formation, which can lead to an order of magnitude of uncertainty in the modeled planet mass. Here, we report the direct-imaging discovery of a Jovian exoplanet around the Sun-like star GJ 504, detected as part of the SEEDS survey. The system is older than all other known directly imaged planets; as a result, its estimated mass remains in the planetary regime independent of uncertainties related to choices of initial conditions in the exoplanet modeling. Using the most common exoplanet cooling model, and given the system age of 160{sup +350}{sub -60} Myr, GJ 504b has an estimated mass of 4{sup +4.5}{sub -1.0} Jupiter masses, among the lowest of directly imaged planets. Its projected separation of 43.5 AU exceeds the typical outer boundary of {approx}30 AU predicted for the core accretion mechanism. GJ 504b is also significantly cooler (510{sup +30}{sub -20} K) and has a bluer color (J - H = -0.23 mag) than previously imaged exoplanets, suggesting a largely cloud-free atmosphere accessible to spectroscopic characterization. Thus, it has the potential of providing novel insights into the origins of giant planets as well as their atmospheric properties.

  5. JOURNAL DE PHYSIQUE Collogue C5, supplement au n 5, Tome 40, Mai 1979, page C5-377 Effect of phonons in mixed valence systems

    E-Print Network [OSTI]

    Boyer, Edmond

    systems like transition metals and rare-earth metals are particularly interesting due to strong electron-phonon coupling on valence fluctuations in rare-earth systems is studied. It is shown that the electron, electronic phase transitions involving f «± d electronic transitions occur in many rare-earth systems like Sm

  6. Initial Steps Towards Evaluating the Potential Disease Impacts of Propagated Marine Fish on Wild Stock: Examination of a New Herpes-like Virus

    E-Print Network [OSTI]

    Hedrick, Ronald P.; Arkush, Kristen D.

    2009-01-01

    Examination of a New Herpes-like Virus Ronald P. Hedricknewly discovered herpes-like virus among white seabass as amethodology Herpes-like virus particles (WSB-HV) have been

  7. Battery system

    DOE Patents [OSTI]

    Dougherty, Thomas J; Wood, Steven J; Trester, Dale B; Andrew, Michael G

    2013-08-27

    A battery module includes a plurality of battery cells and a system configured for passing a fluid past at least a portion of the plurality of battery cells in a parallel manner.

  8. Declarative Systems

    E-Print Network [OSTI]

    Condie, Tyson

    2011-01-01

    Google and ibm join in cloud computing research, 2007. [61]task schedulers in a cloud computing system — that we feltturn to the topic of cloud computing [10] and introduce the

  9. A Quantitative Comparison of Reputation Systems in the Grid

    E-Print Network [OSTI]

    Weissman, Jon

    Abstract-- Reputation systems have been a hot topic in the peer-to-peer community for several years of organizations, demanding computational problems can be solved in a reasonable amount of time without the use the past few years, Grid-like systems have become increasingly popular outside of the scientific domain

  10. Selected Topics in Three- and Four-Nucleon Systems

    E-Print Network [OSTI]

    A. Kievsky

    2011-03-22

    Two different aspects of the description of three- and four-nucleon systems are addressed. The use of bound state like wave functions to describe scattering states in $N-d$ collisions at low energies and the effects of some of the widely used three-nucleon force models in selected polarization observables in the three- and four-nucleon systems are discussed.

  11. Security and Survivability in Unbounded Networked Systems Axel Krings*

    E-Print Network [OSTI]

    Krings, Axel W.

    security and survivability concerns are often equated with applying certain maintenance operations, e.g., frequent operating system updating, subscription to filtering software like virus checkers and spam filters and intrusion tolerance, and economic or statistical modeling of secure/survivable systems. We are very pleased

  12. A Universal Automated Information System for Science and Technology

    E-Print Network [OSTI]

    Andrews, Peter B.

    A Universal Automated Information System for Science and Technology Peter B. Andrews Carnegie, applied sci- ence, and technology. Just as those searching for information on the web today tend to regard are likely to think of them as comprising a Universal Automated Information System for Science and Technology

  13. Density functional theory for self-bound systems

    E-Print Network [OSTI]

    Nir Barnea

    2007-11-06

    The density functional theory is extended to account for self-bound systems. To this end the Hohenberg-Kohn theorem is formulated for the intrinsic density and a Kohn-Sham like procedure for an $N$--body system is derived using the adiabatic approximation to account for the center of mass motion.

  14. System-of-Systems Approach for Integrated Energy Systems Modeling and Simulation: Preprint

    SciTech Connect (OSTI)

    Mittal, Saurabh; Ruth, Mark; Pratt, Annabelle; Lunacek, Monte; Krishnamurthy, Dheepak; Jones, Wesley

    2015-08-21

    Today’s electricity grid is the most complex system ever built—and the future grid is likely to be even more complex because it will incorporate distributed energy resources (DERs) such as wind, solar, and various other sources of generation and energy storage. The complexity is further augmented by the possible evolution to new retail market structures that provide incentives to owners of DERs to support the grid. To understand and test new retail market structures and technologies such as DERs, demand-response equipment, and energy management systems while providing reliable electricity to all customers, an Integrated Energy System Model (IESM) is being developed at NREL. The IESM is composed of a power flow simulator (GridLAB-D), home energy management systems implemented using GAMS/Pyomo, a market layer, and hardware-in-the-loop simulation (testing appliances such as HVAC, dishwasher, etc.). The IESM is a system-of-systems (SoS) simulator wherein the constituent systems are brought together in a virtual testbed. We will describe an SoS approach for developing a distributed simulation environment. We will elaborate on the methodology and the control mechanisms used in the co-simulation illustrated by a case study.

  15. OPTICAL AND DYNAMICAL CHARACTERIZATION OF COMET-LIKE MAIN-BELT ASTEROID (596) SCHEILA

    SciTech Connect (OSTI)

    Hsieh, Henry H.; Yang Bin; Haghighipour, Nader, E-mail: hsieh@ifa.hawaii.edu, E-mail: yangbin@ifa.hawaii.edu, E-mail: nader@ifa.hawaii.edu [Institute for Astronomy, Univ. of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States)

    2012-01-01

    We present observations and a dynamical analysis of the comet-like main-belt object, (596) Scheila. V-band photometry obtained on UT 2010 December 12 indicates that Scheila's dust cloud has a scattering cross-section {approx}1.4 times larger than that of the nucleus, corresponding to a dust mass of M{sub d} {approx} 3 Multiplication-Sign 10{sup 7} kg. V-R color measurements indicate that both the nucleus and dust are redder than the Sun, with no significant color differences between the dust cloud's northern and southern plumes. We also undertake an ultimately unsuccessful search for CN emission, where we find CN and H{sub 2}O production rates of Q{sub CN} < 9 Multiplication-Sign 10{sup 23} s{sup -1} and Q{sub H{sub 2O}}<10{sup 27} s{sup -1}. Numerical simulations indicate that Scheila is dynamically stable for >100 Myr, suggesting that it is likely native to its current location. We also find that it does not belong to a dynamical asteroid family of any significance. We consider sublimation-driven scenarios that could produce the appearance of multiple plumes of dust emission, but reject them as being physically implausible. Instead, we concur with previous studies that the unusual morphology of Scheila's dust cloud is most simply explained by a single oblique impact, meaning that this object is likely not a main-belt comet but is instead the second disrupted asteroid after P/2010 A2 (LINEAR) to be discovered.

  16. On the Verdet constant and Faraday rotation for graphene-like materials

    E-Print Network [OSTI]

    Mikkel H. Brynildsen; Horia D. Cornean

    2013-02-21

    We present a rigorous and rather self-contained analysis of the Verdet constant in graphene- like materials. We apply the gauge-invariant magnetic perturbation theory to a nearest- neighbour tight-binding model and obtain a relatively simple and exactly computable formula for the Verdet constant, at all temperatures and all frequencies of sufficiently large absolute value. Moreover, for the standard nearest neighbour tight-binding model of graphene we show that the transverse component of the conductivity tensor has an asymptotic Taylor expansion in the external magnetic field where all the coefficients of even powers are zero.

  17. LysM receptor-like kinases to improve plant defense response against fungal pathogens

    DOE Patents [OSTI]

    Wan, Jinrong; Stacey, Gary; Stacey, Minviluz; Zhang, Xuecheng

    2013-10-15

    Perception of chitin fragments (chitooligosaccharides) is an important first step in plant defense response against fungal pathogen. LysM receptor-like kinases (LysM RLKs) are instrumental in this perception process. LysM RLKs also play a role in activating transcription of chitin-responsive genes (CRGs) in plants. Mutations in the LysM kinase receptor genes or the downstream CRGs may affect the fungal susceptibility of a plant. Mutations in LysM RLKs or transgenes carrying the same may be beneficial in imparting resistance against fungal pathogens.

  18. Axion Searches with Helioscopes and astrophysical signatures for axion(-like) particles

    E-Print Network [OSTI]

    Zioutas, K; Semertzidis, Y; Papaevangelou, T; Dafni, T; Anastassopoulos, V

    2009-01-01

    The first part reviews the working mechanisms, capabilities and performance of axion helioscopes, including the achieved results so far. The 2nd part is observationally driven. New simulation results obtained with the Geant4 code reconstruct spectral shape of solar X-ray spectra, and their isotropic emission and lateral size. The derived rst mass of the axion(-like) particles is ~10meV. The axion interaction with magnetic field gradient is a generic theoretical suggestion that could reconcile present limits with relevant solar X-ray activity. A short outlook of the experimentally expanding solar axion field is given.

  19. A fourth generation, anomalous like-sign dimuon charge asymmetry and the LHC

    E-Print Network [OSTI]

    Debajyoti Choudhury; Dilip Kumar Ghosh

    2010-07-21

    A fourth chiral generation, with $m_{t^\\prime}$ in the range $\\sim (300 - 500)$ GeV and a moderate value of the CP-violating phase can explain the anomalous like-sign dimuon charge asymmetry observed recently by the D0 collaboration. The required parameters are found to be consistent with constraints from other $B$ and $K$ decays. The presence of such quarks, apart from being detectable in the early stages of the LHC, would also have important consequences in the electroweak symmetry breaking sector.

  20. Observation of the first iso-spin Charmonium-like State $Z_c(4020)$ }

    E-Print Network [OSTI]

    Ji, Qing-Ping; Guo, Ai-Qiang; Yu, Chun-Xu; Wang, Zhi-Yong

    2015-01-01

    In this paper, we present a new experimental progress in brief on the recent observation of the charged charmonium-like state Z_c(4020)^{+/-} states and its iso-spin partner Z_c(4020)^{0} in pi pi hc process at the BESIII experiment. The charged Z_{c}(4020) is its decay into \\pi^{+/-} hc final state, and carries electric charge, thus it contains at least four quarks. The observation of both charge and neutral state makes Z_{c}(4020) the first iso-spin triplet Z_{c} state observed in experiment.

  1. Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV

    E-Print Network [OSTI]

    Laura Lopez-Honorez; Thomas Schwetz; Jure Zupan

    2012-07-09

    We show that fermionic dark matter (DM) which communicates with the Standard Model (SM) via the Higgs portal is a viable scenario, even if a SM-like Higgs is found at around 125 GeV. Using effective field theory we show that for DM with a mass in the range from about 60 GeV to 2 TeV the Higgs portal needs to be parity violating in order to be in agreement with direct detection searches. For parity conserving interactions we identify two distinct options that remain viable: a resonant Higgs portal, and an indirect Higgs portal. We illustrate both possibilities using a simple renormalizable toy model.

  2. Possible Diamond-Like Nanoscale Structures Induced by Slow Highly-Charged Ions on Graphite (HOPG)

    SciTech Connect (OSTI)

    Sideras-Haddad, E.; Schenkel, T.; Shrivastava, S.; Makgato, T.; Batra, A.; Weis, C. D.; Persaud, A.; Erasmus, R.; Mwakikunga, B.

    2009-01-06

    The interaction between slow highly-charged ions (SHCI) of different charge states from an electron-beam ion trap and highly oriented pyrolytic graphite (HOPG) surfaces is studied in terms of modification of electronic states at single-ion impact nanosizeareas. Results are presented from AFM/STM analysis of the induced-surface topological features combined with Raman spectroscopy. I-V characteristics for a number of different impact regions were measured with STM and the results argue for possible formation of diamond-like nanoscale structures at the impact sites.

  3. A Vector-Like Fourth Generation with A Discrete Symmetry From Split-UED

    SciTech Connect (OSTI)

    Kong, Kyoungchul; /SLAC; Park, Seong Chan; /Tokyo U., IPMU; Rizzo, Thomas G.; /SLAC

    2011-08-19

    Split-UED allows for the possibility that the lowest lying KK excitations of the Standard Model fermions can be much lighter than the corresponding gauge or Higgs KK states. This can happen provided the fermion bulk masses are chosen to be large, in units of the inverse compactification radius, 1/R, and negative. In this setup, all of the other KK states would be effectively decoupled from low energy physics. Such a scenario would then lead to an apparent vector-like fourth generation with an associated discrete symmetry that allows us to accommodate a dark matter candidate. In this paper the rather unique phenomenology presented by this picture will be examined.

  4. Irradiation of DEPFET-like transistors with Co-60 gamma source up to 10 MRad

    E-Print Network [OSTI]

    Pablo Vázquez Regueiro; Eliseo Pérez Trigo; Pablo Rodríguez Pérez

    2011-11-18

    The Pixel Detector (PXD) of the Belle II experiment at superKEKB accelerator in Japan is based in the DEPFET technology. Two layers of 8+12 modules at a radius of 13 and 22 mm will give a spatial resolution below 10 mm. The radiation level expected in the first layer in ten years of operation is about 10 MRad of total ionizing dose. In order to study the tolerance of the DEPFET technology sixty devices were irradiated using a standard procedure like 60Co gamma source. Different doping types, channel sizes and biasing conditions were studied

  5. Evidence for linkage disequilibrium in chromosome 13-linked Duchenne-like muscular dystrophy

    SciTech Connect (OSTI)

    Othmane, K.B.; Speer, M.C.; Stauffer, J. [Duke Univ. Medical Center, Durham, NC (United States)] [and others

    1995-09-01

    Duchenne-like muscular dystrophy (DLMD) is an autosomal recessive Limb Girdle muscular dystrophy (LGMD2C) characterized by late age of onset, proximal muscle weakness leading to disability, high creatine kinase values, normal intelligence and normal dystrophin in muscle biopsy. We have shown previously that three DLMD families from Tunisia are linked to chromosome 13q12. To further localize the LGMD2C gene, we have investigated seven additional families (119 individuals). Both genotyping and two-point linkage analysis were performed as described elsewhere. 7 refs., 1 fig., 1 tab.

  6. LysM receptor-like kinases to improve plant defense response against fungal pathogens

    DOE Patents [OSTI]

    Wan, Jinrong (Columbia, MO); Stacey, Gary (Columbia, MO); Stacey, Minviluz (Columbia, MO); Zhang, Xuecheng (Columbia, MO)

    2012-01-17

    Perception of chitin fragments (chitooligosaccharides) is an important first step in plant defense response against fungal pathogen. LysM receptor-like kinases (LysM RLKs) are instrumental in this perception process. LysM RLKs also play a role in activating transcription of chitin-responsive genes (CRGs) in plants. Mutations in the LysM kinase receptor genes or the downstream CRGs may affect the fungal susceptibility of a plant. Mutations in LysM RLKs or transgenes carrying the same may be beneficial in imparting resistance against fungal pathogens.

  7. Static vacuum solutions from convergent null data expansions at space-like infinity

    E-Print Network [OSTI]

    Helmut Friedrich

    2006-06-30

    We study formal expansions of asymptotically flat solutions to the static vacuum field equations which are determined by minimal sets of freely specifyable data referred to as `null data'. These are given by sequences of symmetric trace free tensors at space-like infinity of increasing order. They are 1:1 related to the sequences of Geroch multipoles. Necessary and sufficient growth estimates on the null data are obtained for the formal expansions to be absolutely convergent. This provides a complete characterization of all asymptotically flat solutions to the static vacuum field equations.

  8. The second-order electron self-energy in hydrogen-like ions

    E-Print Network [OSTI]

    I. Goidenko; L. Labzowsky; A. Nefiodov; G. Plunien; G. Soff

    1999-04-08

    A calculation of the simplest part of the second-order electron self-energy (loop after loop irreducible contribution) for hydrogen-like ions with nuclear charge numbers $3 \\leq Z \\leq 92$ is presented. This serves as a test for the more complicated second-order self-energy parts (loop inside loop and crossed loop contributions) for heavy one-electron ions. Our results are in strong disagreement with recent calculations of Mallampalli and Sapirstein for low $Z$ values but are compatible with the two known terms of the analytical $Z\\alpha$-expansion.

  9. Recipe theorem for the Tutte polynomial for matroids, renormalization group-like approach

    E-Print Network [OSTI]

    Gérard H. E. Duchamp; Nguyen Hoang-Nghia; Thomas Krajewski; Adrian Tanasa

    2013-01-04

    Using a quantum field theory renormalization group-like differential equation, we give a new proof of the recipe theorem for the Tutte polynomial for matroids. The solution of such an equation is in fact given by some appropriate characters of the Hopf algebra of isomorphic classes of matroids, characters which are then related to the Tutte polynomial for matroids. This Hopf algebraic approach also allows to prove, in a new way, a matroid Tutte polynomial convolution formula appearing in W. Kook {\\it et. al., J. Comb. Series} {\\bf B 76} (1999).

  10. Null to time-like infinity Green's functions for asymptotic symmetries in Minkowski spacetime

    E-Print Network [OSTI]

    Campiglia, Miguel

    2015-01-01

    We elaborate on the Green's functions that appeared in [1,2] when generalizing, from massless to massive particles, various equivalences between soft theorems and Ward identities of large gauge symmetries. We analyze these Green's functions in considerable detail and show that they form a hierarchy of functions which describe `boundary to bulk' propagators for large $U(1)$ gauge parameters, supertranslations and sphere vector fields respectively. As a consistency check we verify that the Green's functions associated to the large diffeomorphisms map the Poincare group at null infinity to the Poincare group at time-like infinity.

  11. On a "Robust" A-like State of $^3He$ in Aerogel

    E-Print Network [OSTI]

    G. A. Baramidze; G. A. Kharadze

    2006-05-02

    The orbitally isotropic Equal Spin Pairing (ESP) state has been proposed in Ref. [1] as a candidate of an A-like phase of superfluid $^3He$ in aerogel environment. In order to preserve an exact isotropy of the state in the presence of the magnetic field the condensate with equal values of the amplitudes $\\Delta_{\\uparrow\\uparrow}$ and $\\Delta_{\\downarrow\\downarrow}$ was adopted. Experimentally it is established that this version does not reproduce observed splitting asymmetry of ESP phase in aerogel under the action of an external magnetic field. Here we explore the behavior of the quasi-isotropic version of an axiplanar ESP phase with $\\Delta_{\\uparrow\\uparrow}\

  12. X-ray crystal spectrometer upgrade for ITER-like wall experiments at JET

    SciTech Connect (OSTI)

    Shumack, A. E.; Rzadkiewicz, J.; Chernyshova, M.; Czarski, T.; Karpinski, L.; Jakubowska, K.; Scholz, M.; Byszuk, A.; Cieszewski, R.; Kasprowicz, G.; Pozniak, K.; Wojenski, A.; Zabolotny, W.; Dominik, W.; Conway, N. J.; Dalley, S.; Tyrrell, S.; Zastrow, K.-D.; Figueiredo, J. [EFDA-CSU, Culham Science Centre, Abingdon OX14 3DB; Associação EURATOM and others

    2014-11-15

    The high resolution X-Ray crystal spectrometer at the JET tokamak has been upgraded with the main goal of measuring the tungsten impurity concentration. This is important for understanding impurity accumulation in the plasma after installation of the JET ITER-like wall (main chamber: Be, divertor: W). This contribution provides details of the upgraded spectrometer with a focus on the aspects important for spectral analysis and plasma parameter calculation. In particular, we describe the determination of the spectrometer sensitivity: important for impurity concentration determination.

  13. Birkhoff-like theorem for rotating stars in (2+1) dimensions

    E-Print Network [OSTI]

    Skakala, Jozef

    2009-01-01

    Consider a rotating and possibly pulsating "star" in (2+1) dimensions. If the star is axially symmetric, then in the vacuum region surrounding the star, (a region that we assume at most contains a cosmological constant), we shall show that the Einstein equations imply that the geometry is in fact stationary. Furthermore, the geometry external to the star is uniquely guaranteed to be the (2+1) dimensional analogue of the Kerr-de Sitter spacetime, the BTZ geometry. This Birkhoff-like theorem is very special to (2+1) dimensions, and fails in (3+1) dimensions.

  14. Structure of Human Toll-like Receptor 3 (TLR3) Ligand-binding Domain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect PhotovoltaicsStructure and Receptor Specificity ofHuman Toll-like Receptor 3

  15. PUBLISHED VERSION Overview of LH experiments in JET with an ITER-like wall

    E-Print Network [OSTI]

    . The impact of these contributions on the performance of the auxiliary heating systems and the main achievements by these were reviewed in [2]. The main aspects of the operation of the Lower Hybrid (LH) system Republic Abstract: An overview of the recent results of Lower Hybrid (LH) experiments at JET with the ITER

  16. Systems Studies

    SciTech Connect (OSTI)

    Graham, R.L.

    1998-03-17

    The Systems Studies Activity had two objectives: (1) to investigate nontechnical barriers to the deployment of biomass production and supply systems and (2) to enhance and extend existing systems models of bioenergy supply and use. For the first objective, the Activity focused on existing bioenergy markets. Four projects were undertaken: a comparative analysis of bioenergy in Sweden and Austria; a one-day workshop on nontechnical barriers jointly supported by the Production Systems Activity; the development and testing of a framework for analyzing barriers and drivers to bioenergy markets; and surveys of wood pellet users in Sweden, Austria and the US. For the second objective, two projects were undertaken. First, the Activity worked with the Integrated BioEnergy Systems (TBS) Activity of TEA Bioenergy Task XIII to enhance the BioEnergy Assessment Model (BEAM). This model is documented in the final report of the IBS Activity. The Systems Studies Activity contributed to enhancing the feedstock portion of the model by developing a coherent set of willow, poplar, and switchgrass production modules relevant to both the US and the UK. The Activity also developed a pretreatment module for switchgrass. Second, the Activity sponsored a three-day workshop on modeling bioenergy systems with the objectives of providing an overview of the types of models used to evaluate bioenergy and promoting communication among bioenergy modelers. There were nine guest speakers addressing different types of models used to evaluate different aspects of bioenergy, ranging from technoeconomic models based on the ASPEN software to linear programming models to develop feedstock supply curves for the US. The papers from this workshop have been submitted to Biomass and Bioenergy and are under editorial review.

  17. Detector Systems at CLIC

    E-Print Network [OSTI]

    Frank Simon

    2011-09-15

    The Compact Linear Collider CLIC is designed to deliver e+e- collisions at a center of mass energy of up to 3 TeV. The detector systems at this collider have to provide highly efficient tracking and excellent jet energy resolution and hermeticity for multi-TeV final states with multiple jets and leptons. In addition, the detector systems have to be capable of distinguishing physics events from large beam-induced background at a crossing frequency of 2 GHz. Like for the detector concepts at the ILC, CLIC detectors are based on event reconstruction using particle flow algorithms. The two detector concepts for the ILC, ILD and SID, were adapted for CLIC using calorimeters with dense absorbers limiting leakage through increased compactness, as well as modified forward and vertex detector geometries and precise time stamping to cope with increased background levels. The overall detector concepts for CLIC are presented, with particular emphasis on the main detector and engineering challenges, such as: the ultra-thin vertex detector with high resolution and fast time-stamping, hadronic calorimetry using tungsten absorbers, and event reconstruction techniques related to particle flow algorithms and beam background suppression.

  18. What Global Warming Looks Like The July 2010 global map of surface temperature anomalies (Figure 1), relative to the average

    E-Print Network [OSTI]

    Hansen, James E.

    What Global Warming Looks Like The July 2010 global map of surface temperature anomalies (Figure 1 anomalies an example of what we can expect global warming to look like? Maps of temperature anomalies, such as Figure 1, are useful for helping people understand the role of global warming in extreme events

  19. Statistical weaknesses in 20 RC4-like algorithms and (probably) the simplest algorithm free from these weaknesses -VMPC-R

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Statistical weaknesses in 20 RC4-like algorithms and (probably) the simplest algorithm free from statistical weaknesses in 20 RC4-like algorithms including the original RC4, RC4A, PC-RC4 and others. This is achieved using a simple statistical test. We found only one algorithm which was able to pass the test

  20. Observations of Improved Stability and Confinement in a High-Self-Organized Spherical-Torus-Like Field-Reversed Configuration

    E-Print Network [OSTI]

    Washington at Seattle, University of

    -Torus-Like Field-Reversed Configuration H. Y. Guo, A. L. Hoffman, L. C. Steinhauer, and K. E. Miller Redmond Plasma (FRC) with a spherical- torus- (ST-)like core is produced in the translation, confinement. This plasma state exhibits a remarkable stabilizing property for the ubiquitous n 2 centrifugally driven

  1. AlTiN layer effect on mechanical properties of Ti-doped diamond-like carbon composite coatings

    E-Print Network [OSTI]

    Volinsky, Alex A.

    AlTiN layer effect on mechanical properties of Ti-doped diamond-like carbon composite coatings Adhesion Ti/Ti-doped diamond-like carbon (DLC) and Ti/AlTiN/Ti-DLC composite coatings were deposited on the properties of these composite coatings was investigated through microstructure and mechanical properties

  2. Predictability of a Mediterranean Tropical-Like Storm Downstream of the Extratropical Transition of Hurricane Helene (2006)

    E-Print Network [OSTI]

    Chaboureau, Jean-Pierre

    2006-01-01

    northeastward by an upstream trough during ET and contributed to the building of a downstream ridge. A troughPredictability of a Mediterranean Tropical-Like Storm Downstream of the Extratropical Transition downstream. The present study focuses on the predictability of a Mediterranean tropical-like storm (Medicane

  3. A Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm

    E-Print Network [OSTI]

    Najm, Farid N.

    1 A Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm Abstract-- Modern sub-micron VLSI designs include huge power grids that are required to distribute and memory complexity. We propose a novel multigrid-like technique for the analysis of power grids. The grid

  4. Free energy landscape of protein-like chains with discontinuous potentials Hanif Bayat Movahed, Ramses van Zon, and Jeremy Schofield

    E-Print Network [OSTI]

    Schofield, Jeremy

    Free energy landscape of protein-like chains with discontinuous potentials Hanif Bayat Movahed://jcp.aip.org/about/rights_and_permissions #12;THE JOURNAL OF CHEMICAL PHYSICS 136, 245103 (2012) Free energy landscape of protein-like chains of observing the most common configuration is used to analyze the nature of the free energy landscape

  5. Precipitation of amorphous CaCO3 (aragonite-like) by cyanobacteria: A STXM study of the influence of EPS

    E-Print Network [OSTI]

    Hitchcock, Adam P.

    Precipitation of amorphous CaCO3 (aragonite-like) by cyanobacteria: A STXM study of the influence-range order was found to be a transient precursor phase of calcite precipitation mediated by cyanobacteria amounts of precipitation of the aragonite-like CaCO3, whereas the amount of Ca2+ adsorbed per volume

  6. Department of Systems & Information

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    , communication systems, control systems, economic systems, energy and environmental systems, human factors systems, safety-critical systems, wireless communications, game theory and artificial intelligenceDeveloping Leaders of Innovation Department of Systems & Information Engineering #12;In the U

  7. Systems Evaluation at the Cool Energy House

    SciTech Connect (OSTI)

    J. Williamson and S. Puttagunta

    2013-09-01

    Steven Winter Associates, Inc. (SWA) monitored several advanced mechanical systems within a 2012 deep energy retrofitted home in the small Orlando suburb of Windermere, FL. This report provides performance results of one of the home's heat pump water heaters (HPWH) and the whole-house dehumidifier (WHD) over a six month period. In addition to assessing the energy performance of these systems, this study sought to quantify potential comfort improvements over traditional systems. This information is applicable to researchers, designers, plumbers, and HVAC contractors. Though builders and homeowners can find useful information within this report, the corresponding case studies are a likely better reference for this audience.

  8. Methods for estimating wake flow and effluent dispersion near simple block-like buildings

    SciTech Connect (OSTI)

    Hosker, R.P. Jr.

    1981-05-01

    This report is intended as an interim guide for those who routinely face air quality problems associated with near-building exhaust stack placement and height, and the resulting concentration patterns. Available data and methods for estimating wake flow and effluent dispersion near isolated block-like structures are consolidated. The near-building and wake flows are described, and quantitative estimates for frontal eddy size, height and extent of roof and wake cavities, and far wake behavior are provided. Concentration calculation methods for upwind, near-building, and downwind pollutant sources are given. For an upwind source, it is possible to estimate the required stack height, and to place upper limits on the likely near-building concentration. The influences of near-building source location and characteristics relative to the building geometry and orientation are considered. Methods to estimate effective stack height, upper limits for concentration due to flush roof vents, and the effect of changes in rooftop stack height are summarized. Current wake and wake cavity models are presented. Numerous graphs of important expressions have been prepared to facilitate computations and quick estimates of flow patterns and concentration levels for specific simple buildings. Detailed recommendations for additional work are given.

  9. Towards the Final State of Spherical Gravitational Collapse and Likely Source of Gamma Ray Bursts

    E-Print Network [OSTI]

    Abhas Mitra

    1999-09-23

    We invoke the global properties of the actual GTR field equations for spherical collapse to directly show that the condition for formation of trapped surfaces, 2GM/R >1 is not allowed by GTR. And therefore all singularity theorems based on the assumption of formation of trapped surfaces are invalidated! Our conclusion is in perfect agreement with Einstein's intuitive idea that a Sch. like surface can not occur in reality. Further as singularity is approached R ->0, in order that 2GM/R 0! Harrison, et al. had also pointed out that collapse should come to a decisive end with M=0. This is possible in GTR if the fluid radiates its entire original mass-energy during the relentless graviatational contraction process, Q->M c^2! Since the actual efficiency for gamma ray production by the relevant blast wave may hardly exceed 10-20% and there could be a stronger (undetected) nu-anti-nu burst precding GRBs, the actual energy released for GRB 990123, even accounting for probable weak beaming, or for GRB 971214 (unbeamed) could be ~10^{54-55} erg. And such energy release may not be properly accountable without realizing that trapped surfaces are indeed not formed. All authors concerned with this subject, and particularly those, who would like to differ with our derivation are requested to send their criticism either directly or express the same openly for a healthy scientific discussion.

  10. Feynman-like rules for calculating n-point correlators of the primordial curvature perturbation

    SciTech Connect (OSTI)

    Valenzuela-Toledo, César A.; Rodríguez, Yeinzon; Almeida, Juan P. Beltrán E-mail: yeinzon.rodriguez@uan.edu.co

    2011-10-01

    A diagrammatic approach to calculate n-point correlators of the primordial curvature perturbation ? was developed a few years ago following the spirit of the Feynman rules in Quantum Field Theory. The methodology is very useful and time-saving, as it is for the case of the Feynman rules in the particle physics context, but, unfortunately, is not very well known by the cosmology community. In the present work, we extend such an approach in order to include not only scalar field perturbations as the generators of ?, but also vector field perturbations. The purpose is twofold: first, we would like the diagrammatic approach (which we would call the Feynman-like rules) to become widespread among the cosmology community; second, we intend to give an easy tool to formulate any correlator of ? for those cases that involve vector field perturbations and that, therefore, may generate prolonged stages of anisotropic expansion and/or important levels of statistical anisotropy. Indeed, the usual way of formulating such correlators, using the Wick's theorem, may become very clutter and time-consuming.

  11. The spectrum of kink-like oscillations of solar photospheric magnetic elements

    E-Print Network [OSTI]

    Stangalini, M; Consolini, G

    2013-01-01

    Recently, the availability of new high-spatial and -temporal resolution observations of the solar photosphere has allowed the study of the oscillations in small magnetic elements. Small magnetic elements have been found to host a rich variety of oscillations detectable as intensity, longitudinal or transverse velocity fluctuations which have been interpreted as MHD waves. Small magnetic elements, at or below the current spatial resolution achieved by modern solar telescopes, are though to play a relevant role in the energy budget of the upper layers of the Sun's atmosphere, as they are found to cover a significant fraction of the solar photosphere. Unfortunately, the limited temporal length and/or cadence of the data sets, or the presence of seeing-induced effects have prevented, so far, the estimation of the power spectra of kink-like oscillations in small magnetic elements with good accuracy. Motivated by this, we studied kink-like oscillations in small magnetic elements, by exploiting very long duration an...

  12. Polo-like Kinase I is involved in Invasion through Extracellular Matrix

    SciTech Connect (OSTI)

    Bissell, Mina J; Rizki, Aylin; Mott, Joni D.; Bissell, Mina J

    2008-04-02

    Polo-like kinase 1, PLK1, has important functions in maintaining genome stability and is involved in regulation of mitosis. PLK1 is up regulated in many invasive carcinomas. We asked whether it may also play a role in acquisition of invasiveness, a crucial step in transition to malignancy. In a model of metaplastic basal-like breast carcinoma progression, we found that PLK1 expression is necessary but not sufficient to induce invasiveness through laminin-rich extracellular matrix. PLK1 mediates invasion via Vimentin and {beta}1 integrin, both of which are necessary. We observed that PLK1 phosphorylates Vimentin on serine 82, which in turn regulates cell surface levels of {beta}1 integrin. We found PLK1 to be also highly expressed in pre-invasive in situ carcinomas of the breast. These results support a role for the involvement of PLK1 in the invasion process and point to this pathway as a potential therapeutic target for pre-invasive and invasive breast carcinoma treatment.

  13. Composition of Management System for Smart Homes

    E-Print Network [OSTI]

    Levin, Mark Sh; Klapproth, Alexander

    2011-01-01

    The paper addresses modular hierarchical design (composition) of a management system for smart homes. The management system consists of security subsystem (access control, alarm control), comfort subsystem (temperature, etc.), intelligence subsystem (multimedia, houseware). The design solving process is based on Hierarchical Morphological Multicriteria Design (HMMD) approach: (1) design of a tree-like system model, (2) generation of design alternatives for leaf nodes of the system model, (3) Bottom-Up process: (i) multicriteria selection of design alternatives for system parts/components and (ii) composing the selected alternatives into a resultant combination (while taking into account ordinal quality of the alternatives above and their compatibility). A realistic numerical example illustrates the design process of a management system for smart homes.

  14. A natural SM-like 126 GeV Higgs via non-decoupling D-terms

    E-Print Network [OSTI]

    Enrico Bertuzzo; Claudia Frugiuele

    2014-12-08

    Accommodating both a 126 GeV mass and Standard Model (SM) like couplings for the Higgs has a fine tuning price in supersymmetric models. Examples are the MSSM, in which SM-like couplings are natural, but raising the Higgs mass up to 126 GeV requires a considerable tuning, or the NMSSM, in which the situation is reversed: the Higgs is naturally heavier, but being SM-like requires some tuning. We show that models with non-decoupling D-terms alleviate this tension - a 126 GeV SM-like Higgs comes out basically with no fine tuning cost. In addition, the analysis of the fine tuning of the extended gauge sector shows that naturalness requires the heavy gauge bosons to likely be within the LHC run II reach.

  15. Tracking system for solar collectors

    DOE Patents [OSTI]

    Butler, B.

    1980-10-01

    A tracking system is provided for pivotally mounted spaced-apart solar collectors. A pair of cables is connected to spaced-apart portions of each collector, and a driver displaces the cables, thereby causing the collectors to pivot about their mounting, so as to assume the desired orientation. The collectors may be of the cylindrical type as well as the flat-plate type. Rigid spar-like linkages may be substituted for the cables. Releasable attachments of the cables to the collectors is also described, as is a fine tuning mechanism for precisely aligning each individual collector.

  16. Tracking system for solar collectors

    DOE Patents [OSTI]

    Butler, Barry L. (Golden, CO)

    1984-01-01

    A tracking system is provided for pivotally mounted spaced-apart solar collectors. A pair of cables is connected to spaced-apart portions of each collector, and a driver displaces the cables, thereby causing the collectors to pivot about their mounting, so as to assume the desired orientation. The collectors may be of the cylindrical type as well as the flat-plate type. Rigid spar-like linkages may be substituted for the cables. Releasable attachments of the cables to the collectors is also described, as is a fine tuning mechanism for precisely aligning each individual collector.

  17. Jay Srinivasan! NERSC Systems Group!

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATIONIntroducing theActivationDept ofNERSC Systems Group! ! NUG

  18. Equilibrium-like behavior in far-from-equilibrium chemical reaction networks

    E-Print Network [OSTI]

    David K. Lubensky

    2008-07-04

    In an equilibrium chemical reaction mixture, the number of molecules present obeys a Poisson distribution. We ask when the same is true of the steady state of a nonequilibrium reaction network and obtain an essentially complete answer. In particular, we show that networks with certain topological features must have a Poisson distribution, whatever the reaction rates. Such driven systems also obey an analog of the fluctuation-dissipation theorem. Our results may be relevant to biological systems and to the larger question of how equilibrium concepts might apply to nonequilibrium systems.

  19. By Aviva Hope Rutkin on September 27, 2013 Some Robots Are Starting to Move More Like

    E-Print Network [OSTI]

    Stryk, Oskar von

    open- source, allowing anyone with a 3-D printer to build and tinker with their own version. Gain-driven system for industrial use. This company's robotic arm, BioRob, has a flexible mechanical structure

  20. A convective-like energy-stable open boundary condition for ...

    E-Print Network [OSTI]

    S. Dong

    2015-09-21

    Sep 15, 2015 ... boundary condition ensures the energy stability of the system, even when strong vortices or backflows occur .... The objective of the current paper is twofold. First, we present ...... three-dimensional flow transition occurs. The lift ...