National Library of Energy BETA

Sample records for red italic format

  1. Goldberger-Treiman relation, [ital g][sub [ital A

    SciTech Connect (OSTI)

    Eletsky, V.L. Institute for Theoretical Physics, Berne University, Sidlerstrasse 5, CH-3012 Berne ); Kogan, I.I. )

    1994-04-01

    The Goldberger-Treiman relation is shown to persist in the chiral limit at finite temperatures to [ital O]([ital T][sup 2]). The [ital T] dependence of [ital g][sub [ital A

  2. Validity of the [ital t]-[ital J] model

    SciTech Connect (OSTI)

    Batista, C.D.; Aligia, A.A. (Comision Nacional de Energia Atomica, Centro Atomico Bariloche, 8400 Bariloche (Argentina))

    1993-08-01

    We have diagonalized exactly an effective Hamiltonian [ital H][sub eff] that describes the low-energy eigenstates of Cu[sub 4]O[sub 8] cluster with five holes. Projecting these eigenstates onto Zhang-Rice states we find that for total spin [ital S]=1/2, they have more than 90% of local singlet character for realistic parameters. This percentage depends on [ital S] and the symmetry of the states and is larger for the ground state. The fit of the energy levels using a model similar to the [ital t]-[ital J] model, is improved substantially if the model includes a term that combines a nearest-neighbor exchange with a next-nearest-neighbor hopping.

  3. Radiative corrections to [Gamma]([ital Z][r arrow][ital b[bar b

    SciTech Connect (OSTI)

    Kundu, A.; Raychaudhuri, S.; De, T.; Dutta-Roy, B. (Theory Group, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta-700064 (India))

    1994-12-01

    Isodoublet color-octet scalar bosons appear in the low-energy limit of a natural extension of the standard model in which the electroweak symmetry is broken by a [ital t[bar t

  4. Strangelet search in S-W collisions at 200[ital A] GeV/[ital c

    SciTech Connect (OSTI)

    Borer, K.; Dittus, F.; Frei, D.; Hugentobler, E.; Klingenberg, R.; Moser, U.; Pretzl, K.; Schacher, J.; Stoffel, F.; Volken, W. ); Elsener, K.; Lohmann, K.D. ); Baglin, C.; Bussiere, A.; Guillaud, J.P. ); Appelquist, G.; Bohm, C.; Hovander, B.; Sellden, B.; Zhang, Q.P. )

    1994-03-07

    A search for new massive particles with a low charge to mass ratio in S-W collisions at a beam momentum of 200 GeV/[ital c] per nucleon is presented. Upper limits for the production of strangelets with a mass to charge ratio of up to 60 GeV/[ital c][sup 2] at rigidities of [plus minus]150 GV are reported.

  5. Question of universality in RP{sup {ital n}{minus}1} and O({ital n}) lattice {sigma} models

    SciTech Connect (OSTI)

    Niedermayer, F.; Weisz, P.; Shin, D.

    1996-05-01

    We argue that there is no essential violation of universality in the continuum limit of mixed RP{sup {ital n}{minus}1} and O({ital n}) lattice {sigma} models in two dimensions, contrary to opposite claims in the literature. {copyright} {ital 1996 The American Physical Society.}

  6. INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION

    SciTech Connect (OSTI)

    Mark A. Sippel; William C. Carrigan; Kenneth D. Luff; Lyn Canter

    2003-11-12

    Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). The software tools in ICS have been developed for characterization of reservoir properties and evaluation of hydrocarbon potential using a combination of inter-disciplinary data sources such as geophysical, geologic and engineering variables. The ICS tools provide a means for logical and consistent reservoir characterization and oil reserve estimates. The tools can be broadly characterized as (1) clustering tools, (2) neural solvers, (3) multiple-linear regression, (4) entrapment-potential calculator and (5) file utility tools. ICS tools are extremely flexible in their approach and use, and applicable to most geologic settings. The tools are primarily designed to correlate relationships between seismic information and engineering and geologic data obtained from wells, and to convert or translate seismic information into engineering and geologic terms or units. It is also possible to apply ICS in a simple framework that may include reservoir characterization using only engineering, seismic, or geologic data in the analysis. ICS tools were developed and tested using geophysical, geologic and engineering data obtained from an exploitation and development project involving the Red River Formation in Bowman County, North Dakota and Harding County, South Dakota. Data obtained from 3D seismic surveys, and 2D seismic lines encompassing nine prospective field areas were used in the analysis. The geologic setting of the Red River Formation in Bowman and Harding counties is that of a shallow-shelf, carbonate system. Present-day depth of the Red River formation is approximately 8000 to 10,000 ft below ground surface. This report summarizes production results from well demonstration activity, results of reservoir characterization of the Red River Formation at demonstration sites, descriptions of ICS tools and strategies for their application.

  7. Insight into the Common Mechanism of the Chromophore Formation in the Red Fluorescent Proteins: The Elusive Blue

    E-Print Network [OSTI]

    Verkhusha, Vladislav V.

    : The Elusive Blue Intermediate Revealed Ksenia B. Bravaya, Oksana M. Subach, Nadezhda Korovina, Vladislav V calculations identifying the nature of a blue intermediate, a key species in the process of the red chromophore formation in DsRed, TagRFP, fluorescent timers, and PAmCherry. The chromophore of the blue intermediate has

  8. Nesting mechanism for [ital d]-symmetry superconductors

    SciTech Connect (OSTI)

    Ruvalds, J.; Rieck, C.T.; Tewari, S.; Thoma, J. ); Virosztek, A. )

    1995-02-01

    A nested Fermi surface with nearly parallel orbit segments is found to yield a singlet [ital d]-wave superconducitng state at high temperatures for a restricted range of the on-site Coulomb repulsion that avoids the competing spin-density-wave instability. The computed superconducting transition temperature drops dramatically as the nesting vector is decreased, in accord with recent photoemission data on the Bi2212 and Bi2201 cuprates. Superconducting transition temperatures in the 100 K range are produced by the nesting mechanism in the [ital leading] [ital order] pairing interaction caused by exchange of spin fluctuations.

  9. Observation of enhanced subthreshold [ital K][sup +] production in central collisions between heavy nuclei

    SciTech Connect (OSTI)

    Miskowiec, D.; Ahner, W.; Barth, R.; Cieslak, M.; Debowski, M.; Grosse, E.; Henning, W.; Koczon, P.; Schicker, R.; Schwab, E.; Senger, P. (Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany)); Baltes, P.; Muentz, C.; Oeschler, H.; Sartorius, S.; Sturm, C.; Wagner, A. (Technische Hochschule Darmstadt, D-64289 Darmstadt (Germany)); Beckerle, P.; Bormann, C.; Brill, D.; Shin, Y.; Stein, J.; Stock, R.; Stroebele, H. (Johann Wolfgang Goethe Universitaet, D-60486 Frankfurt (Germany)); Kohlmeyer, B.; Poeppl, H.; Puehlhofer, F.; Speer, J.; Voelkel, K. (Philipps Universitaet, D-35037 Marburg (Germany)); Walus, W. (Jagiellonian University, PL-30-059 Krakow (Poland))

    1994-06-06

    In the very heavy collision system [sup 197]Au+[sup 197]Au the [ital K][sup +] production process was studied as a function of impact parameter at 1 GeV/nucleon, a beam energy well below the free [ital N]-[ital N] threshold. The [ital K][sup +] multiplicity increases more than linearly with the number of participant nucleons and the [ital K][sup +]/[pi][sup +] ratio rises significantly when going from peripheral to central collisions. The measured [ital K][sup +] double differential cross section is enhanced by a factor of 6 compared to microscopic transport calculations if secondary processes ([Delta][ital N][r arrow][ital K][Lambda][ital N] and [Delta][Delta][r arrow][ital K][Lambda][ital N]) are ignored.

  10. Magnetic phase transitions in the UFe{sub 1{minus}{ital x}}Co{sub {ital x}}Al system

    SciTech Connect (OSTI)

    Tran, V.H.; Troc, R.; Zaleski, A.J.

    1996-12-01

    We present the results of x-ray-powder diffraction, magnetic susceptibility, magnetization, electrical resistivity, and M{umlt o}ssbauer effect measurements performed on the UFe{sub 1{minus}{ital x}}Co{sub {ital x}}Al system. The lattice parameters determined for the system show a sharp maximum for {ital a}({ital x}) and minimum for {ital c}({ital x}) approximately for {ital x}{approx_equal}0.3. From the point of view of magnetic properties this system appears to have two main concentration regions: (a) 0{le}{ital x}{lt}0.5 and (b) 0.5{le}{ital x}{le}1.0. The phases falling into the first region do not show a long-range magnetic ordering, while in the second region they become ferromagnetic with the maximum values of the Curie temperature and spontaneous magnetic moment at {ital x}{approx_equal}0.8. The ferromagnetic properties of the alloys at {ital B}=0 T with 0.5{le}{ital x}{le}0.98 are also confirmed by the M{umlt o}ssbauer effect experiment. Furthermore, we compare the magnetic behavior of UFe{sub 1{minus}{ital x}}Co{sub {ital x}}Al with that of the analogous UFe{sub 1{minus}{ital x}}Ni{sub {ital x}}Al. We find that the maximum ferromagnetic response appears in both systems by introduction to them of approximately 0.8 or 1 more electron, i.e., for the {ital x}=0.8 and 0.5 compositions, respectively. Moreover, we discuss the complex magnetic properties of pure U-Co-Al in more details and some view on its ground state is given. {copyright} {ital 1996 The American Physical Society.}

  11. Temperature dependence of the Pd [ital K]-edge extended x-ray-absorption fine structure of PdC[sub [ital x

    SciTech Connect (OSTI)

    McCaulley, J.A. (Hoechst Celanese Research Division, Robert L. Mitchell Technical Center, 86 Morris Avenue, Summit, New Jersey 07901 (United States))

    1993-03-01

    Pd [ital K]-edge extended x-ray-absorption fine-structure (EXAFS) and x-ray-absorption near-edge-structure (XANES) measurements were performed on a Pd carbide phase, PdC[sub [ital x

  12. Chiral coupling constants {ital {bar l}}{sub 1} and {ital {bar l}}{sub 2} from {pi}{pi}phase shifts

    SciTech Connect (OSTI)

    Ananthanarayan, B.; Buettiker, P.

    1996-07-01

    A Roy equation analysis of the available {pi}{pi} phase shift data is performed with the {ital I}=0 {ital S}-wave scattering length {ital a}{sup 0}{sub 0} in the range predicted by the one-loop standard chiral perturbation theory. A suitable dispersive framework is developed to extract the chiral coupling constants {bar {ital l}}{sub 1}, {bar {ital l}}{sub 2} and yields {bar {ital l}}{sub 1}={minus}1.70{plus_minus}0.15 and {bar {ital l}}{sub 2}{approx_equal}5.0. We remark on the implications of this determination to (combinations of) threshold parameter predictions of the three lowest partial waves. {copyright} {ital 1996 The American Physical Society.}

  13. Fermion scattering off a [ital CP]-violating electroweak bubble wall

    SciTech Connect (OSTI)

    Funakubo, K.; Kakuto, A.; Otsuki, S.; Takenaga, K.; Toyoda, F. (Department of Physics, Saga University, Saga 840 (Japan) Department of Liberal Arts, Kinki University in Kyushu, Iizuka 820 (Japan) Department of Physics, Kyushu University, Fukuoka 812 (Japan))

    1994-07-15

    A general prescription to solve the Dirac equation in the presence of a [ital CP]-violating electroweak bubble wall is presented. The profile of the bubble wall is not specified except that the wall height is [ital m][sub 0] and zero deep in the broken- and the symmetric-phase regions, respectively, where [ital m][sub 0] is a fermion mass given by the Higgs vacuum, expectation value and the Yukawa coupling. The [ital CP]-violating effects are evaluated by regarding the [ital CP]-violating part of the bubble wall as a perturbation to [ital CP]-conserving solutions. The basic quantity [ital R][sub [ital R][r arrow][ital L

  14. SU{sub {ital q}}(2) lattice gauge theory

    SciTech Connect (OSTI)

    Bimonte, G.; Stern, A.; Vitale, P.

    1996-07-01

    We reformulate the Hamiltonian approach to lattice gauge theories such that, at the classical level, the gauge group does not act canonically, but instead as a Poisson-Lie group. At the quantum level, the symmetry gets promoted to a quantum group gauge symmetry. The theory depends on two parameters: the deformation parameter {lambda} and the lattice spacing {ital a}. We show that the system of Kogut and Susskind is recovered when {lambda}{r_arrow}0, while QCD is recovered in the continuum limit (for any {lambda}). We, thus, have the possibility of having a two-parameter regularization of QCD. {copyright} {ital 1996 The American Physical Society.}

  15. Strangelet search in Pb-Pb interactions at 158 GeV/{ital c} per nucleon

    SciTech Connect (OSTI)

    Appelquist, G.; Baglin, C.; Beringer, J.; Bohm, C.; Borer, K.; Bussiere, A.; Dittus, F.; Elsener, K.; Frei, D.; Gorodetzky, P.; Guillaud, J.P.; Hugentobler, E.; Klingenberg, R.; Linden, T.; Lohmann, K.D.; Moser, U.; Pal, T.; Pretzl, K.; Schacher, J.; Sellden, B.; Stoffel, F.; Tuominiemi, J.; Zhang, Q.P.

    1996-05-01

    The NA52 experiment searches for long-lived massive strange quark matter particles, so-called {ital strangelets}, produced in Pb-Pb collisions at a beam momentum of {ital p}{sub lab}=158 AGeV/{ital c}. Upper limits for the production of strangelets at zero degree production angle covering a mass to charge ratio up to 120 GeV/{ital c}{sup 2} and lifetimes {ital t}{sub lab}{approx_gt}1.2 {mu}s are given. The data presented here were taken during the 1994 lead beam running period at CERN. {copyright} {ital 1996 The American Physical Society.}

  16. Note: Instructions for Completing in [Italics] SCHEDULE OF PROJECT DETAILS

    E-Print Network [OSTI]

    Kamat, Vineet R.

    ] ___________________________________________________________________________________ Design Professional - Schedule of Project Details Page 1 of 6 Form Date: CM January 2015 #12;The Basic-consultants that are included in the Basic Services are as follows: Firm Name Type of Architect/Engineer 5. ReimbursableNote: Instructions for Completing in [Italics] SCHEDULE OF PROJECT DETAILS for the Agreement

  17. Lateral Drilling and Completion Technologies for Shallow-Shelf Carbonates of the Red River and Ratcliffe Formations, Williston Basin

    SciTech Connect (OSTI)

    David Gibbons; Larry A. Carrell; Richard D. George

    1997-07-31

    Luff Exploration Company (LEC) focused on involvement in technologies being developed utilizing horizontal drilling concepts to enhance oil- well productivity starting in 1992. Initial efforts were directed toward high-pressure lateral jetting techniques to be applied in existing vertical wells. After involvement in several failed field attempts with jetting technologies, emphasis shifted to application of emerging technologies for drilling short-radius laterals in existing wellbores and medium-radius technologies in new wells. These lateral drilling technologies were applied in the Mississippi Ratcliffe and Ordovician Red River formations at depths of 2590 to 2890 m (8500 to 9500 ft) in Richland Co., MT; Bowman Co., ND; and Harding Co., SD.

  18. Mean field phase diagram of an SU(2){sub {ital L}}{times}SU(2){sub {ital R}} lattice Higgs-Yukawa model at finite {lambda}

    SciTech Connect (OSTI)

    Pryor, C. [Sierra Center for Physics, 939 North Van Ness Avenue, Suite 2, Fresno, California 93728 (United States)] [Sierra Center for Physics, 939 North Van Ness Avenue, Suite 2, Fresno, California 93728 (United States)

    1996-02-01

    The phase diagram of an SU(2){sub {ital L}}{times}SU(2){sub {ital R}} lattice Higgs-Yukawa model with finite {lambda} is constructed using mean field theory. The phase diagram bears a superficial resemblance to that for {lambda}={infinity}; however, as {lambda} is decreased the paramagnetic region shrinks in size. For small {lambda} the phase transitions remain second order, and no new first order transitions are seen. {copyright} {ital 1996 The American Physical Society.}

  19. The {ital T}{sub 1}({ital n}{pi}{asterisk}){l_arrow}{ital S}{sub 0} laser induced phosphorescence excitation spectrum of acetaldehyde in a supersonic free jet: Torsion and wagging potentials in the lowest triplet state

    SciTech Connect (OSTI)

    Liu, H.; Lim, E.C.; Munoz-Caro, C.; Nino, A.; Judge, R.H.; Moule, D.C.

    1996-08-01

    The laser induced {ital T}{sub 1}({ital n}{pi}{asterisk}){l_arrow}{ital S}{sub 0} phosphorescence excitation spectrum of jet-cooled acetaldehyde has been observed for the first time with a rotating slit nozzle excitation system. The vibronic origins were fitted to a set of levels that were obtained from a Hamiltonian that employed flexible torsion-wagging large amplitude coordinates. The potential surface extracted from the fitting procedure yielded barriers to torsion and inversion of 609.68 and 869.02 cm{sup {minus}1}, respectively. Minima in the potential hypersurface at {theta}=61.7{degree} and {alpha}=42.2{degree} defined the equilibrium positions for the torsion and wagging coordinates. A comparison to the corresponding {ital S}{sub 1}-state parameters showed that the torsion barrier (in cm{sup {minus}1}) does not greatly change, {ital S}{sub 1}/{ital T}{sub 1}=710.8/609.7, whereas the barrier height for the wagging-inversion barrier increases dramatically, 574.4/869.0. {copyright} {ital 1996 American Institute of Physics.}

  20. Muonium-antimuonium oscillations and exotic muon decay in broken [ital R]-parity SUSY models

    SciTech Connect (OSTI)

    Halprin, A. (Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)); Masiero, A. (Instituto Nazionale di Fisica Nucleare, Sezione di Padova, 35100 Padova (Italy))

    1993-10-01

    We analyze the process of muonium-antimuonium conversion and the rare decay [mu][sup +][r arrow][ital e][sup +][bar [nu

  1. Reservoir characterization of the Ordovician Red River Formation in southwest Williston Basin Bowman County, ND and Harding County, SD

    SciTech Connect (OSTI)

    Sippel, M.A.; Luff, K.D.; Hendricks, M.L.; Eby, D.E.

    1998-07-01

    This topical report is a compilation of characterizations by different disciplines of the Red River Formation in the southwest portion of the Williston Basin and the oil reservoirs which it contains in an area which straddles the state line between North Dakota and South Dakota. Goals of the report are to increase understanding of the reservoir rocks, oil-in-place, heterogeneity, and methods for improved recovery. The report is divided by discipline into five major sections: (1) geology, (2) petrography-petrophysical, (3) engineering, (4) case studies and (5) geophysical. Interwoven in these sections are results from demonstration wells which were drilled or selected for special testing to evaluate important concepts for field development and enhanced recovery. The Red River study area has been successfully explored with two-dimensional (2D) seismic. Improved reservoir characterization utilizing 3-dimensional (3D) and has been investigated for identification of structural and stratigraphic reservoir compartments. These seismic characterization tools are integrated with geological and engineering studies. Targeted drilling from predictions using 3D seismic for porosity development were successful in developing significant reserves at close distances to old wells. Short-lateral and horizontal drilling technologies were tested for improved completion efficiency. Lateral completions should improve economics for both primary and secondary recovery where low permeability is a problem and higher density drilling is limited by drilling cost. Low water injectivity and widely spaced wells have restricted the application of waterflooding in the past. Water injection tests were performed in both a vertical and a horizontal well. Data from these tests were used to predict long-term injection and oil recovery.

  2. Diagenesis of sandstones from the Douglas Creek member of the Green River Formation (Eocene) at Red Wash field, Uintay County, Utah 

    E-Print Network [OSTI]

    Ray, Earl Scott

    1985-01-01

    . These wells, units 271 and 278 (Figure 2) are located near the edge of Red Wash field. Samples from Chevron uni t 278 were used in this study. Petrography Petrographic sections were prepared from core samples at intervals varying from . 25 to 1O m. A... OF SANDSTONES FROM THE DOUGLAS CREEK MEMBER OF THE GREEN RIVER FORMATION(EOCENE) AT RED WASH FIELDS UINTAH COUNTY@ UTAH A Thesis by EARL SCOTT RAY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement...

  3. {ital E}3 transition probabilities in the platinum, mercury, and lead isotopes

    SciTech Connect (OSTI)

    Egido, J.L.; Martin, V.; Robledo, L.M.; Sun, Y.

    1996-06-01

    Spectroscopical properties of the platinum, mercury, and lead isotopes are studied within the Hartree-Fock plus BCS framework with the finite range density-dependent Gogny force. These properties are also studied beyond mean-field theory by combining the use of generator-coordinate-method-like wave functions with the angular momentum projection technique as to generate many-body correlated wave functions that are at the same time eigenstates of the angular momentum operator. We apply this formalism to the calculation of reduced transition probabilities {ital B}({ital E}3) from the lowest-lying octupole collective state to the ground state of several isotopes of the platinum, mercury, and lead nuclei whose experimental {ital B}({ital E}3) values present a peculiar behavior. The projected calculations show a large improvement over the unprojected ones when compared with the experimental data. The unprojected calculations are unable to predict any structure in the {ital B}({ital E}3). {copyright} {ital 1996 The American Physical Society.}

  4. Effect of the drift wave turbulence on the evolution of the low-[ital m] tearing modes

    SciTech Connect (OSTI)

    Siva Rama Prasad, P.V.; Tewari, D.P. )

    1994-01-01

    The effect of the background drift wave turbulence on the evolution of the low-[ital m] tearing modes has been studied, in the quasilinear regime, in various limiting cases. It is found, in the cases of the [ital m]=1 classical, collisionless, and drift-tearing modes, that the turbulence introduces finite real frequencies to these modes, which are otherwise purely growing ones, but reduces their instability activity. In the case of the [ital m][ge]2 classical modes, in a limit [vert bar][alpha][vert bar][sup 1/2][much gt][rho][sub [ital i

  5. {ital In} {ital situ} x-ray diffraction analysis of the C49--C54 titanium silicide phase transformation in narrow lines

    SciTech Connect (OSTI)

    Roy, R.A.; Clevenger, L.A.; Cabral, C. Jr.; Saenger, K.L.; Brauer, S.; Jordan-Sweet, J.; Bucchignano, J.; Stephenson, G.B.; Morales, G.; Ludwig, K.F. Jr.

    1995-04-03

    The transformation of titanium silicide from the C49 to the C54 structure was studied using x-ray diffraction of samples containing arrays of narrow lines of preformed C49 TiSi{sub 2}. Using a synchrotron x-ray source, diffraction patterns were collected at 1.5--2 {degree}C intervals during sample heating at rates of 3 or 20 {degree}C/s to temperatures of 1000--1100 {degree}C. The results show a monotonic increase in the C54 transition temperature by as much as 180 {degree}C with a decreasing linewidth from 1.0 to 0.1 {mu}m. Also observed is a monotonic increase in (040) preferred orientation of the C54 phase with decreasing linewidth. The results demonstrate the power of {ital in} {ital situ} x-ray diffraction of narrow line arrays as a tool to study finite size effects in thin-film reactions.

  6. Catalytic Growth of Single-Wall Carbon Nanotubes: An {ital Ab Initio} Study

    SciTech Connect (OSTI)

    Lee, Y.H.; Kim, S.G.; Tomanek, D.; Lee, Y.H.

    1997-03-01

    We propose a catalytic growth mechanism of single-wall carbon nanotubes based on density functional total energy calculations. Our results indicate nanotubes with an {open_quotes}armchair{close_quotes} edge to be energetically favored over {open_quotes}zigzag{close_quotes} nanotubes. We also suggest that highly mobile Ni catalyst atoms adsorb at the growing edge of the nanotube, where they catalyze the continuing assembly of hexagons from carbon feedstock diffusing along the nanotube wall. In a concerted exchange mechanism, Ni atoms anneal carbon pentagons that would initiate a dome closure of the nanotube. {copyright} {ital 1997} {ital The American Physical Society}

  7. Red or blue? A potential kilonova imprint of the delay until black hole formation following a neutron star merger

    E-Print Network [OSTI]

    Brian D. Metzger; Rodrigo Fernández

    2014-05-02

    Mergers of binary neutron stars (NSs) usually result in the formation of a hypermassive neutron star (HMNS). Whether- and when this remnant collapses to a black hole (BH) depends primarily on the equation of state and on angular momentum transport processes, both of which are uncertain. Here we show that the lifetime of the merger remnant may be directly imprinted in the radioactively powered kilonova emission following the merger. We employ axisymmetric, time-dependent hydrodynamic simulations of remnant accretion disks orbiting a HMNS of variable lifetime, and characterize the effect of this delay to BH formation on the disk wind ejecta. When BH formation is relatively prompt (~ 100 ms), outflows from the disk are sufficiently neutron rich to form heavy r-process elements, resulting in ~ week-long emission with a spectral peak in the near-infrared (NIR), similar to that produced by the dynamical ejecta. In contrast, delayed BH formation allows neutrinos from the HMNS to raise the electron fraction in the polar direction to values such that potentially Lanthanide-free outflows are generated. The lower opacity would produce a brighter, bluer, and shorter-lived ~ day-long emission (a `blue bump') prior to the late NIR peak from the dynamical ejecta and equatorial wind. This new diagnostic of BH formation should be useful for events with a signal to noise lower than that required for direct detection of gravitational waveform signatures.

  8. THE ROAD TO THE RED SEQUENCE: A DETAILED VIEW OF THE FORMATION OF A MASSIVE GALAXY AT z {approx} 2

    SciTech Connect (OSTI)

    Ferreras, Ignacio; Pasquali, Anna; Khochfar, Sadegh; Kuntschner, Harald; Kuemmel, Martin; Pirzkal, Nor; Windhorst, Rogier; Malhotra, Sangeeta; Rhoads, James; Cohen, Seth; O'Connell, Robert W.; Hathi, Nimish P.; Ryan, Russell E.; Yan Haojing

    2012-08-15

    Over half of the census of massive galaxies at z {approx} 2 are dominated by quiescent stellar populations. The formation mechanism for these galaxies is still under debate, with models relying either on massive and early mergers or cold accretion. It is therefore imperative to understand in detail the properties of these galaxies. We present here a detailed analysis of the star formation history (SFH) of FW4871, a massive galaxy at z = 1.893 {+-} 0.002. We compare rest-frame optical and NUV slitless grism spectra from the Hubble Space Telescope with a large set of composite stellar populations to constrain the underlying SFH. Even though the morphology features prominent tidal tails, indicative of a recent merger, there is no sign of ongoing star formation within an aperture encircling one effective radius, which corresponds to a physical extent of 2.6 kpc. A model assuming truncation of an otherwise constant SFH gives a formation epoch z{sub F} {approx} 10 with a truncation after 2.7 Gyr, giving a mass-weighted age of 1.5 Gyr and a stellar mass of (0.8-3) Multiplication-Sign 10{sup 11} M{sub Sun} (the intervals representing the output from different population synthesis models), implying star formation rates of 30-110 M{sub Sun} yr{sup -1}. A more complex model including a recent burst of star formation places the age of the youngest component at 145{sup +450}{sub -70} Myr, with a mass contribution lower than 20%, and a maximum amount of dust reddening of E(B - V) < 0.4 mag (95% confidence levels). This low level of dust reddening is consistent with the low emission observed at 24 {mu}m, corresponding to rest-frame 8 {mu}m, where polycyclic aromatic hydrocarbon emission should contribute significantly if a strong formation episode were present. The color profile of FW4871 does not suggest a significant radial trend in the properties of the stellar populations out to 3 R{sub e}. We suggest that the recent merger that formed FW4871 is responsible for the quenching of its star formation.

  9. {ital In situ} neutron-reflectometry measurements of hydrogen and deuterium absorption in a Pd/Nb/Pd layered film

    SciTech Connect (OSTI)

    Munter, A.E.; Heuser, B.J.; Ruckman, M.W.

    1997-06-01

    We present {ital in situ} neutron-reflectivity measurements of the hydrogen and deuterium absorption from the gas phase in a Pd/Nb/Pd thin film multilayer. Hydrogen and deuterium were both preferentially absorbed into the Nb layer at room temperature and at a pressure of 10 Torr. Genetic algorithm fits to the specular data indicate concentrations of approximately 0.71 [H]/[Nb] and 0.51 [D]/[Nb], placing the Nb well into the {beta} phase (or an {alpha}-like phase). {copyright} {ital 1997} {ital The American Physical Society}

  10. Dissecting the Red Sequence--I. Star Formation Histories of Quiescent Galaxies: The Color-Magnitude vs. the Color-Sigma Relation

    E-Print Network [OSTI]

    Genevieve J. Graves; S. M. Faber; Ricardo P. Schiavon

    2008-10-23

    We use a sample of ~16,000 non-emission line galaxies from the SDSS to investigate the physical parameters underlying the well-known color-magnitude and color-sigma relations. Galaxies are sorted in terms of velocity dispersions (sigma), luminosity (L), and color, and their spectra are stacked to obtain very high S/N mean spectra for stellar population analysis. This allows us to map mean luminosity-weighted ages, [Fe/H], [Mg/H], and [Mg/Fe] in sigma-L-color space. Our first result is that there are many different red sequences, with age, [Fe/H], [Mg/H], and [Mg/Fe] showing different amounts of slope and scatter when plotted versus sigma, L, or color. These behaviors are explained if the star formation histories of the galaxies populate a two-dimensional parameter space. One parameter is the previously well-known increase in age, [Fe/H], [Mg/H], and [Mg/Fe] with sigma. In addition to this, we find systematic variations at fixed sigma, such that more luminous galaxies are younger, more Fe-rich, but have lower [Mg/Fe] than their fainter counterparts. The main sigma trends support a paradigm in which more massive galaxies form their stars more rapidly and at earlier times than less massive galaxies. The trends at fixed sigma are consistent with scatter in the duration of star formation for galaxies at a given sigma. The co-variation of stellar population properties and L residuals at fixed sigma that we present here has a number of implications: it explains the differing behavior of stellar population indicators when investigated versus sigma as compared to L, and it reveals that L is not as efficient as sigma for indicating galaxy "size" in stellar population studies.

  11. Lateral drilling and completion technologies for shallow-shelf carbonates of the Red River and Ratcliffe Formations, Williston Basin. Topical report, July 1997

    SciTech Connect (OSTI)

    Carrell, L.A.; George, R.D.; Gibbons, D.

    1998-07-01

    Luff Exploration Company (LEC) focused on involvement in technologies being developed utilizing horizontal drilling concepts to enhance oil-well productivity starting in 1992. Initial efforts were directed toward high-pressure lateral jetting techniques to be applied in existing vertical wells. After involvement in several failed field attempts with jetting technologies, emphasis shifted to application of emerging technologies for drilling short-radius lateral in existing wellbores and medium-radius technologies in new wells. These lateral drilling technologies were applied in the Mississippi Ratcliffe and Ordovician Red River formations at depths of 2,590 to 2,890 m in Richland County, MT; Bowman County, ND; and Harding County, SD. In theory, all of the horizontal drilling techniques explored in this project have merit for application fitting specific criteria. From a realistic point of view, the only relatively trouble-free, adequately-proven technology employed was the medium-radius steered motor/MWD technology. The slim-tool steered motor/MWD re-entry technology has been used extensively but appears to still be significantly in developmental stages. This technology will probably always be more troublesome than the technology used to drill new wells because the smaller diameter required for the tools contributes to both design and operational complexities. Although limited mechanical success has been achieved with some of the lateral jetting technologies and the Amoco tools, their predictability and reliability is unproven. Additionally, they appear to be limited to shallow depths and certain rock types. The Amoco technology probably has the most potential to be successfully developed for routinely reliable, field applications. A comparison of the various horizontal drilling technologies investigated is presented.

  12. Red Sky with Red Mesa

    ScienceCinema (OSTI)

    None

    2014-06-23

    The Red Sky/Red Mesa supercomputing platform dramatically reduces the time required to simulate complex fuel models, from 4-6 months to just 4 weeks, allowing researchers to accelerate the pace at which they can address these complex problems. Its speed also reduces the need for laboratory and field testing, allowing for energy reduction far beyond data center walls.

  13. Intense {ital J}=0{endash}1 soft-x-ray lasing at 28.5 nm in neonlike chromium

    SciTech Connect (OSTI)

    Praeg, A.R.; Loewenthal, F.; Balmer, J.E.

    1996-11-01

    Intense 3{ital p}-3{ital s}, {ital J}=0{endash}1 soft-x-ray lasing at 28.5 nm in neonlike chromium has been observed experimentally using a compact Nd:glass laser as the driver. 2.4-cm-long polished chromium slab targets were irradiated with up to 100-J/500-ps pulses at the fundamental wavelength of 1.054 {mu}m. The prepulse technique was applied using a defined prepulse 5 ns before the main pulse and with a prepulse-to-main pulse energy ratio of 0.7{percent}. It is demonstrated that a pump energy of {approximately}80 J, corresponding to a pump irradiance of approximately 9 TW/cm{sup 2} is sufficient to observe soft-x-ray lasing at 28.5 nm. At a drive laser energy of {approximately}90 J a gain coefficient of (2.2{plus_minus}0.5) cm{sup {minus}1} was measured. The one-dimensional space-resolved measurements show that the 28.5-nm laser line is emitted from a 60-{mu}m-wide (full width at half maximum) plasma region. {copyright} {ital 1996 The American Physical Society.}

  14. Microwave surface resistance of YBa{sub 2}Cu{sub 3}Cu{sub 3}O{sub 7{minus}{ital x}} films on polycrystalline ceramic substrates with textured buffer layers

    SciTech Connect (OSTI)

    Findikoglu, A.T.; Foltyn, S.R.; Arendt, P.N.; Groves, J.R.; Jia, Q.X.; Peterson, E.J.; Wu, X.D.; Reagor, D.W.

    1996-09-01

    We have used a parallel-plate resonator technique to measure the microwave surface resist- ance {ital R}{sub {ital s}} of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (YBCO) films on buffered ceramic substrates at around 10 GHz, and studied the correlation between their {ital R}{sub {ital s}} and materials properties. A 0.4-{mu}m-thick YBCO film (with an in-plane mosaic spread of 7{degree}) grown on a polycrystalline alumina substrate with an ion-beam-assisted-deposited yttria-stabilized zirconia buffer layer showed an {ital R}{sub {ital s}} of 1.89 m{Omega} at 76 K and 0.21 m{Omega} at 4 K. We have observed a strong correlation between the {ital R}{sub {ital s}} of the samples and the in-plane mosaic spread of the YBCO films. This correlation can be explained qualitatively in terms of a simple model in which the weak links between the grains of the YBCO film form an electrical network of Josephson junctions.

  15. Red Galaxies from Hot Halos in Cosmological Hydro Simulations

    E-Print Network [OSTI]

    Gabor, Jared

    2012-01-01

    I highlight three results from cosmological hydrodynamic simulations that yield a realistic red sequence of galaxies: 1) Major galaxy mergers are not responsible for shutting off star-formation and forming the red sequence. Starvation in hot halos is. 2) Massive galaxies grow substantially (about a factor of 2 in mass) after being quenched, primarily via minor (1:5) mergers. 3) Hot halo quenching naturally explains why galaxies are red when they either (a) are massive or (b) live in dense environments.

  16. Electrically tunable coplanar transmission line resonators using YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}}/SrTiO{sub 3} bilayers

    SciTech Connect (OSTI)

    Findikoglu, A.T.; Jia, Q.X.; Campbell, I.H.; Wu, X.D.; Reagor, D.; Mombourquette, C.B.; McMurry, D.

    1995-06-26

    We have prepared electrically tunable microwave resonators incorporating superconducting YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (YBCO) and paraelectric SrTiO{sub 3} (STO) layers on LaAlO{sub 3} substrates. The top YBCO layer for each sample was patterned into a 8 mm long coplanar transmission line with a 40 {mu}m gap and a 20 {mu}m center line width. The microwave transmission through the coplanar transmission line exhibits resonances corresponding to standing microwaves along the coplanar transmission line. These resonances are modulated by applying a bias voltage between the center line and the ground planes. Samples with a 0.5 {mu}m thick (2 {mu}m thick) bottom STO layer show, for a resonance at around 8 GHz (5 GHz), a frequency modulation of about 4% (24%) and a quality factor {ital Q} of about 200 (50) under 100 V bias at 80 K. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

  17. Letters and numbers within parentheses identify refer-ence codes. Numbers in italics refer to the Species/

    E-Print Network [OSTI]

    (A023) 16, 41 Frog, Mountain Yellow-legged (A025) 16, 43 Frog, Red-legged (A021) 16, 39 Frog, Tailed (R013) 17, 57 Snake, Sharp-tailed (R014) 17, 58 Snake, Western Aquatic Garter (R024) 18, 68 Snake, Western Black-headed (R025) 18, 69 Snake, Western Terrestrial Garter (R023) 18, 67 Turtle, Western Pond (R

  18. Heating and jet formation by colliding shocks in solar atmosphere

    SciTech Connect (OSTI)

    Tarbell, T.; Ryutova, M.P.; Covington, J. [Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Palo Alto, California 94304 (United States); Ryutova, M.P. [Lawrence Livermore National Laboratory/IGPP, Livermore, California 94550 (United States); Fludra, A. [Space Science Department, Rutherford Appleton Laboratory (United States)

    1999-06-01

    We show that ubiquitous small-scale magnetic flux {open_quotes}tubes{close_quotes} constantly emerging from subsurface layers, may cause the formation of plasma jets and a sporadic excess of temperature near the solar surface. Photospheric network magnetic elements collide and reconnect, creating a sling-shot effect which generates complex 3D shock waves with the curved surface. Self-focusing of these shocks occurs as they propagate upward in the rarefied atmosphere. Depending on the geometry of the shock collision, highly concentrated energy may be either converted entirely into heat or into strong jets, or be distributed between the two. {copyright} {ital 1999 American Institute of Physics.}

  19. Red Rice Research and Control. 

    E-Print Network [OSTI]

    Baker, John B.; Baldwin, Ford L.; Bourgeois, W.J.; Cox, Clodis H.; Craigmiles, Julian P.; Dishman, William D.; Eastin, E. Ford; Helpert, Charles W.; Hill, Lewis C.; Huey, Bobby A.; Klosterboer, Arlen D.; Sonnier, Earl A.

    1980-01-01

    ...................................... 10 E. A. Sonnier RED RICE CONTROL IN ALTERNATE CROPS ................................ 16 F. L. Baldwin ..# RED RICE CONTROL ..................................................lg B. A. Huey and F. L. Baldwin RED RICE HERBICIDE SCREENING TESTS... - t o discuss the l a t e s t f indings and procedures f o r con t ro l l ing red r i c e . In accom- pl ishing t h i s we want two-way communication s o t h a t all present w i l l become current on t h i s most noxious weed of r i c e...

  20. EA-1692: Red River Environmental Products, LLC Activated Carbon...

    Office of Environmental Management (EM)

    2: Red River Environmental Products, LLC Activated Carbon Manufacturing Facility, Red River Parish, LA EA-1692: Red River Environmental Products, LLC Activated Carbon Manufacturing...

  1. The plasma protein fibrinogen stabilizes clusters of red blood cells in microcapillary flows

    E-Print Network [OSTI]

    Brust, M; Thiebaud, M; Flormann, D; Verdier, C; Kaestner, L; Laschke, M W; Selmi, H; Benyoussef, A; Podgorski, T; Coupier, G; Misbah, C; Wagner, C

    2014-01-01

    The supply of oxygen and nutrients and the disposal of metabolic waste in the organs depend strongly on how blood, especially red blood cells, flow through the microvascular network. Macromolecular plasma proteins such as fibrinogen cause red blood cells to form large aggregates, called rouleaux, which are usually assumed to be disaggregated in the circulation due to the shear forces present in bulk flow. This leads to the assumption that rouleaux formation is only relevant in the venule network and in arterioles at low shear rates or stasis. Thanks to an excellent agreement between combined experimental and numerical approaches, we show that despite the large shear rates present in microcapillaries, the presence of either fibrinogen or the synthetic polymer dextran leads to an enhanced formation of robust clusters of red blood cells, even at haematocrits as low as 1%. Robust aggregates are shown to exist in microcapillaries even for fibrinogen concentrations within the healthy physiological range. These pers...

  2. Red McCombs Jamail Texas

    E-Print Network [OSTI]

    Pillow, Jonathan

    Cashier/ Public Parking Pay Station Do Not Enter/ Exit Only No Left Turn Note: Lot 115 not availableLeona Lot Red McCombs Red Zone Lot 117 Lot 109 Lot 114 Lot 113 Lot 110 Lot 112 Lot 115 Lot 103 Lot Red & Charline McCombs Field Lot 104 Lot 103 Lot 115 Lot 112 Lot 110 Lot 113 Lot 113 Lot 113 Lot 114

  3. MyRED Mobiles Student Views

    E-Print Network [OSTI]

    Farritor, Shane

    tap on Shopping Cart, then select term. Tap on Class Search to find courses to place in your shoppingMyRED Mobiles Student Views Mar 2014 Page 1 Login/Sign-in Enter your MyRED /TrueYou credentials. Tap on any Term bar to view a schedule for the selected term. Home Screen/Main Menu Class Schedule

  4. MyRED Mobile Student Views

    E-Print Network [OSTI]

    Tsymbal, Evgeny Y.

    tap on Shopping Cart, then select term. Tap on Class Search to find courses to place in your shoppingMyRED Mobile Student Views Mar 2014 Page 1 Login/Sign-in Enter your MyRED /TrueYou credentials. Tap on any Term bar to view a schedule for the selected term. Home Screen/Main Menu Class Schedule Screen Tap

  5. U-200: Red Hat Directory Server Information Disclosure Security...

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

    A security issue and a vulnerability have been reported in Red Hat Directory Server, which can be exploited by malicious users to disclose sensitive information. PLATFORM: Red Hat...

  6. RedLeaf Resources Ecoshale Project | Department of Energy

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

    RedLeaf Resources Ecoshale Project RedLeaf Resources Ecoshale Project Overview of oil shale reserves, unique oil extraction issues, novel approach for cost-effective extraction...

  7. Viscoelastic transient of confined Red Blood Cells

    E-Print Network [OSTI]

    Gaël Prado; Alexander Farutin; Chaouqi Misbah; Lionel Bureau

    2014-09-17

    The unique ability of a red blood cell to flow through extremely small microcapillaries depends on the viscoelastic properties of its membrane. Here, we study in vitro the response time upon flow startup exhibited by red blood cells confined into microchannels. We show that the characteristic transient time depends on the imposed flow strength, and that such a dependence gives access to both the effective viscosity and the elastic modulus controlling the temporal response of red cells. A simple theoretical analysis of our experimental data, validated by numerical simulations, further allows us to compute an estimate for the two-dimensional membrane viscosity of red blood cells, $\\eta_{mem}^{2D}\\sim 10^{-7}$ N$\\cdot$s$\\cdot$m$^{-1}$. By comparing our results with those from previous studies, we discuss and clarify the origin of the discrepancies found in the literature regarding the determination of $\\eta_{mem}^{2D}$, and reconcile seemingly conflicting conclusions from previous works.

  8. Redding Electric- Renewable Energy Rebate Program

    Broader source: Energy.gov [DOE]

    The Earth Advantage Rebate Program was designed to offer rebates to residential and business customers of Redding Electric Utility (REU) for solar PV, solar thermal, and geothermal heat pump...

  9. Red squirrel habitat mapping using remote sensing 

    E-Print Network [OSTI]

    Flaherty, Silvia Susana

    2013-07-01

    The native Eurasian red squirrel is considered endangered in the UK and is under strict legal protection. Long-term management of its habitat is a key goal of the UK conservation strategy. Current selection criteria of ...

  10. Improved ``Optical Highlighter'' Probes Derived from Discosoma Red Fluorescent Protein

    E-Print Network [OSTI]

    Marchant, Jonathan

    , Minneapolis, Minnesota ABSTRACT The tetrameric red fluorescent protein, DsRed, undergoes a rapid red to green-emitting species of DsRed and an enhancement of emission from the ``immature'' green species, likely caused by dequenching of fluorescence resonance energy transfer occurring within the protein tetramer. Here, we have

  11. THE SIZE DIFFERENCE BETWEEN RED AND BLUE GLOBULAR CLUSTERS IS NOT DUE TO PROJECTION EFFECTS

    SciTech Connect (OSTI)

    Webb, Jeremy J.; Harris, William E.; Sills, Alison

    2012-11-10

    Metal-rich (red) globular clusters in massive galaxies are, on average, smaller than metal-poor (blue) globular clusters. One of the possible explanations for this phenomenon is that the two populations of clusters have different spatial distributions. We test this idea by comparing clusters observed in unusually deep, high signal-to-noise images of M87 with a simulated globular cluster population in which the red and blue clusters have different spatial distributions, matching the observations. We compare the overall distribution of cluster effective radii as well as the relationship between effective radius and galactocentric distance for both the observed and simulated red and blue sub-populations. We find that the different spatial distributions does not produce a significant size difference between the red and blue sub-populations as a whole or at a given galactocentric distance. These results suggest that the size difference between red and blue globular clusters is likely due to differences during formation or later evolution.

  12. CUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership

    E-Print Network [OSTI]

    READY BUILDINGS Solar access, easements, rights now and future Technical design ­ rCUTTING SOLAR RED TAPECUTTING SOLAR RED TAPE Evergreen State Solar PartnershipEvergreen State Solar Partnership Rooftop Solar Challenge 1 Sunshot #12;WASHINGTON PV CONTEXTWASHINGTON PV CONTEXT 285 cities, 39

  13. Red mud characterization using nuclear analytical techniques

    SciTech Connect (OSTI)

    Obhodas, J.; Sudac, D.; Matjacic, L.; Valkovic, V.

    2011-07-01

    Red mud is a toxic waste left as a byproduct in aluminum production Bayer process. Since it contains significant concentrations of other chemical elements interesting for industry, including REE, it is also potential secondary ore source. Recent events in some countries have shown that red mud presents a serious environmental hazard if not properly stored. The subject of our study is the red mud from an ex-aluminum plant in Obrovac, Croatia, left from processing of bauxite mined during late 70's and early 80's at the eastern Adriatic coast and since than stored in open concrete basins for more than 30 years. We have used energy dispersive x-ray fluorescence analysis (both tube and radioactive source excitation), fast neutron activation analysis and passive gamma spectrometry to identify a number of elements present in the red mud, their concentration levels and radioactivity in the red mud. The high concentrations of Al, Si, Ca, Ti and Fe have been measured. Chemical elements Sc, Cr, Mn, Co, Ni, Cu, Zn, Ga, As, Se, Br, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Pb, Th and U were found in lower concentrations. No significant levels of radioactivity have been measured. (authors)

  14. RedFlow | Open Energy Information

    Open Energy Info (EERE)

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

  15. The FIRST-2MASS Red Quasar Survey

    SciTech Connect (OSTI)

    Glikman, E; Helfand, D J; White, R L; Becker, R H; Gregg, M D; Lacy, M

    2007-06-28

    Combining radio observations with optical and infrared color selection--demonstrated in our pilot study to be an efficient selection algorithm for finding red quasars--we have obtained optical and infrared spectroscopy for 120 objects in a complete sample of 156 candidates from a sky area of 2716 square degrees. Consistent with our initial results, we find our selection criteria--J-K > 1.7,R-K > 4.0--yield a {approx} 50% success rate for discovering quasars substantially redder than those found in optical surveys. Comparison with UVX- and optical color-selected samples shows that {approx}> 10% of the quasars are missed in a magnitude-limited survey. Simultaneous two-frequency radio observations for part of the sample indicate that a synchrotron continuum component is ruled out as a significant contributor to reddening the quasars spectra. We go on to estimate extinctions for our objects assuming their red colors are caused by dust. Continuum fits and Balmer decrements suggest E(B-V) values ranging from near zero to 2.5 magnitudes. Correcting the K-band magnitudes for these extinctions, we find that for K {le} 14.0, red quasars make up between 25% and 60% of the underlying quasar population; owing to the incompleteness of the 2MASS survey at fainter K-band magnitudes, we can only set a lower limit to the radio-detected red quasar population of > 20-30%.

  16. Optical Design of a Red Sensitive Spectrograph 

    E-Print Network [OSTI]

    Martin, Emily 1988-

    2012-04-22

    We present a preliminary design for a red-sensitive spectrograph. The spectrograph is optimized to operate over the 600-1000nm spectral range at a resolution of ~2000 and is designed specifically for the 2.7-m Harlan J. Smith Telescope at Mc...

  17. North American montane red foxes: expansion, fragmentation, and the origin of the Sacramento Valley red fox

    E-Print Network [OSTI]

    Sacks, Benjamin N.; Statham, Mark J.; Perrine, John D.; Wisely, Samantha M.; Aubry, Keith B.

    2010-01-01

    and the origin of the Sacramento Valley red fox Benjamin N.in arid habitats in the Sacramento Valley of California wellState University Sacramento, Sacramento, CA 95819, USA M. J.

  18. ASCI Red for dummies : a recipe book for easy use of the ASCI Red platform.

    SciTech Connect (OSTI)

    Kelly, Suzanne Marie; Quinlan, Gerald F.; Miller, Joel D.; Sault, Allen G.; McAllister, Paula L.

    2003-11-01

    It has been recognized that documentation for new customers of ASCI Red, aka janus or the Intel Teraflops at Sandia National Laboratories, has been sadly lacking. This document has been prepared by a team of subject matter experts to fill that void and to provide a starting point for providing a similar document for ASCI Red Storm in the future. This document is intended for SNL users who need to jumpstart their use of Janus and Janus-s.

  19. WHEN THE BLUE-GREEN WATERS TURN RED

    E-Print Network [OSTI]

    WHEN THE BLUE-GREEN WATERS TURN RED Historical Flooding in Havasu Creek, Arizona U.S. GEOLOGICAL OF RECLAMATION #12;WHEN THE BLUE-GREEN WATERS TURN RED Historical Flooding in Havasu Creek, Arizona By THEODORE S

  20. Thyroid Hormone Regulation of Deiodinase in Red Drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Ron, Laura

    2011-05-04

    thyroxine (T4) in the red drum (Sciaenops ocellatus), a commercially important fish species. Immersion experiments were performed, where red drum were kept in 20-gallon glass tanks – with either T4-treated or control solution-treated tank water...

  1. Sun-Sentinel Red hot email heats up Wasserman Schultz,

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Sun-Sentinel Red hot email heats up Wasserman Schultz, West rift South Florida members of Congress take feud public July 20, 2011|By Anthony Man, Sun Sentinel Congressman Allen West's red hot response

  2. Seeing red in cyclic stratigraphy: Spectral noise estimation for astrochronology

    E-Print Network [OSTI]

    Meyers, Stephen R.

    Seeing red in cyclic stratigraphy: Spectral noise estimation for astrochronology Stephen R. Meyers1.8% confidence level). Citation: Meyers, S. R. (2012), Seeing red in cyclic stratigraphy: Spectral noise is the time increment, rn is the red noise sequence, 0 r

  3. WATER REQUIREMENTSWATER REQUIREMENTSWATER REQUIREMENTSWATER REQUIREMENTS of Hard Red Spring Wheat

    E-Print Network [OSTI]

    O'Laughlin, Jay

    WATER REQUIREMENTSWATER REQUIREMENTSWATER REQUIREMENTSWATER REQUIREMENTS of Hard Red Spring Wheat C. Hopkins #12;Estimating Water Requirements of Hard Red Spring Wheat for Final Irrigations 2 Introductiond water use Producers of hard red spring wheat know that inadequate water reduces yield and quality

  4. Red Leaf Resources and the Commercialization of Oil Shale

    E-Print Network [OSTI]

    Utah, University of

    Red Leaf Resources and the Commercialization of Oil Shale #12;About Red Leaf Resources 2006 Company commercial development field activities #12;Highlights Proven, Revolutionary Oil Shale Extraction Process Technology Significant Owned Oil Shale Resource #12;· The executive management team of Red Leaf Resources

  5. redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data

    E-Print Network [OSTI]

    Rozo, E; Abate, A; Bonnett, C; Crocce, M; Davis, C; Hoyle, B; Leistedt, B; Peiris, H V; Wechsler, R H; Abbott, T; Abdalla, F B; Banerji, M; Bauer, A H; Benoit-Lévy, A; Bernstein, G M; Bertin, E; Brooks, D; Buckley-Geer, E; Burke, D L; Capozzi, D; Rosell, A Carnero; Carollo, D; Kind, M Carrasco; Carretero, J; Castander, F J; Childress, M J; Cunha, C E; D'Andrea, C B; Davis, T; DePoy, D L; Desai, S; Diehl, H T; Dietrich, J P; Doel, P; Eifler, T F; Evrard, A E; Neto, A Fausti; Flaugher, B; Fosalba, P; Frieman, J; Gaztanaga, E; Gerdes, D W; Glazebrook, K; Gruen, D; Gruendl, R A; Honscheid, K; James, D J; Jarvis, M; Kim, A G; Kuehn, K; Kuropatkin, N; Lahav, O; Lidman, C; Lima, M; Maia, M A G; March, M; Martini, P; Melchior, P; Miller, C J; Miquel, R; Mohr, J J; Nichol, R C; Nord, B; O'Neill, C R; Ogando, R; Plazas, A A; Romer, A K; Roodman, A; Sako, M; Sanchez, E; Santiago, B; Schubnell, M; Sevilla-Noarbe, I; Smith, R C; Soares-Santos, M; Sobreira, F; Suchyta, E; Swanson, M E C; Thaler, J; Thomas, D; Uddin, S; Vikram, V; Walker, A R; Wester, W; Zhang, Y; da Costa, L N

    2015-01-01

    We introduce redMaGiC, an automated algorithm for selecting Luminous Red Galaxies (LRGs). The algorithm was specifically developed to minimize photometric redshift uncertainties in photometric large-scale structure studies. redMaGiC achieves this by self-training the color-cuts necessary to produce a luminosity-thresholded LRG sample of constant comoving density. We demonstrate that redMaGiC photozs are very nearly as accurate as the best machine-learning based methods, yet they require minimal spectroscopic training, do not suffer from extrapolation biases, and are very nearly Gaussian. We apply our algorithm to Dark Energy Survey (DES) Science Verification (SV) data to produce a redMaGiC catalog sampling the redshift range $z\\in[0.2,0.8]$. Our fiducial sample has a comoving space density of $10^{-3}\\ (h^{-1} Mpc)^{-3}$, and a median photoz bias ($z_{spec}-z_{photo}$) and scatter $(\\sigma_z/(1+z))$ of 0.005 and 0.017 respectively. The corresponding $5\\sigma$ outlier fraction is 1.4%. We also test our algorit...

  6. Where do "red and dead" early-type void galaxies come from?

    E-Print Network [OSTI]

    Darren J. Croton; Glennys R. Farrar

    2008-05-30

    Void regions of the Universe offer a special environment for studying cosmology and galaxy formation, which may expose weaknesses in our understanding of these phenomena. Although galaxies in voids are observed to be predominately gas rich, star forming and blue, a sub-population of bright red void galaxies can also be found, whose star formation was shut down long ago. Are the same processes that quench star formation in denser regions of the Universe also at work in voids? We compare the luminosity function of void galaxies in the 2dF Galaxy Redshift Survey, to those from a galaxy formation model built on the Millennium Simulation. We show that a global star formation suppression mechanism in the form of low luminosity "radio mode" AGN heating is sufficient to reproduce the observed population of void early-types. Radio mode heating is environment independent other than its dependence on dark matter halo mass, where, above a critical mass threshold of approximately M_vir~10^12.5 M_sun, gas cooling onto the galaxy is suppressed and star formation subsequently fades. In the Millennium Simulation, the void halo mass function is shifted with respect to denser environments, but still maintains a high mass tail above this critical threshold. In such void halos, radio mode heating remains efficient and red galaxies are found; collectively these galaxies match the observed space density without any modification to the model. Consequently, galaxies living in vastly different large-scale environments but hosted by halos of similar mass are predicted to have similar properties, consistent with observations.

  7. A Recipe for Galaxy Formation Shaun Cole

    E-Print Network [OSTI]

    Alfonso Aragon-Salamanca; Carlos S. Frenk; Julio F. Navarro; Stephen E. Zepf

    1994-02-01

    We present a detailed prescription for how galaxy formation can be modelled in hierarchical theories of structure formation. Our model incorporates the formation and merging of dark matter halos, the shock heating and radiative cooling of baryonic gas gravitationally confined in these halos, the formation of stars regulated by the energy released by evolving stars and supernovae, the merging of galaxies within dark matter halos, and the spectral evolution of the stellar populations that are formed. The procedure that we describe is very flexible and can be applied to any hierarchical clustering theory. We explore the effects of varying the stellar initial mass function, star formation rates and galaxy merging. The results we compare with an extensive range of observational data, including the B and K galaxy luminosity functions, galaxy colours, the Tully-Fisher relation and galaxy number counts.These data strongly constrain the models and enable the relative importance of each of the physical process to be assessed. We present a broadly successful model defined by a plausible choice of parameters. This fiducial model produces a much more acceptable luminosity function than most previous studies. This is achieved through a modest rate of galaxy mergers and strong suppression of star formation in halos of low circular velocity. However, it fails to produce galaxies as red as many observed ellipticals and, compared with the observed Tully-Fisher relation, the model galaxies have circular velocities which are too large. ** uuencoded compressed postscript file containing all text and figures.**

  8. Osmotic water permeability of human red cells

    SciTech Connect (OSTI)

    Terwilliger, T.C.; Solomon, A.K.

    1981-05-01

    The osmotic water permeability of human red cells has been reexamined with a stopped-flow device and a new perturbation technique. Small osmotic gradients are used to minimize the systematic error caused by nonlinearities in the relationship between cell volume and light scattering. Corrections are then made for residual systematic error. Our results show that the hydraulic conductivity, Lp, is essentially independent of the direction of water flow and of osmolality in the range 184-365 mosM. the mean value of Lp obtained obtained was 1.8 +/- 0.1 (SEM) X 10-11 cm3 dyne -1 s-1.

  9. Blue, green, orange, and red upconversion laser

    DOE Patents [OSTI]

    Xie, P.; Gosnell, T.R.

    1998-09-08

    A laser is disclosed for outputting visible light at the wavelengths of blue, green, orange and red light. This is accomplished through the doping of a substrate, such as an optical fiber or waveguide, with Pr{sup 3+} ions and Yb{sup 3+} ions. A light pump such as a diode laser is used to excite these ions into energy states which will produce lasing at the desired wavelengths. Tuning elements such as prisms and gratings can be employed to select desired wavelengths for output. 11 figs.

  10. Blue, green, orange, and red upconversion laser

    DOE Patents [OSTI]

    Xie, Ping (San Jose, CA); Gosnell, Timothy R. (Sante Fe, NM)

    1998-01-01

    A laser for outputting visible light at the wavelengths of blue, green, orange and red light. This is accomplished through the doping of a substrate, such as an optical fiber or waveguide, with Pr.sup.3+ ions and Yb.sup.3+ ions. A light pump such as a diode laser is used to excite these ions into energy states which will produce lasing at the desired wavelengths. Tuning elements such as prisms and gratings can be employed to select desired wavelengths for output.

  11. Red Sun Energy | Open Energy Information

    Open Energy Info (EERE)

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

  12. Walmart Red Bluff | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairexVertVillageVitexWaco,Wales WindWalmart Red

  13. FROM BLUE STAR-FORMING TO RED PASSIVE: GALAXIES IN TRANSITION IN DIFFERENT ENVIRONMENTS

    SciTech Connect (OSTI)

    Vulcani, Benedetta; Poggianti, Bianca M.; Fasano, Giovanni; Moretti, Alessia; Fritz, Jacopo; Calvi, Rosa; Paccagnella, Angela

    2015-01-01

    Exploiting a mass-complete (M {sub *} > 10{sup 10.25} M {sub ?}) sample at 0.03 formation activity and/or morphology: green galaxies, red passive late types, and blue star-forming early types. Color fractions depend on mass and only for M {sub *} < 10{sup 10.7} M {sub ?} on environment. The incidence of red galaxies increases with increasing mass, and, for M {sub *} < 10{sup 10.7} M {sub ?}, decreases toward the group outskirts and in binary and single galaxies. The relative abundance of green and blue galaxies is independent of environment and increases monotonically with galaxy mass. We also inspect galaxy structural parameters, star-formation properties, histories, and ages and propose an evolutionary scenario for the different subpopulations. Color transformations are due to a reduction and suppression of the star-formation rate in both bulges and disks that does not noticeably affect galaxy structure. Morphological transitions are linked to an enhanced bulge-to-disk ratio that is due to the removal of the disk, not to an increase of the bulge. Our modeling suggests that green colors might be due to star-formation histories declining with long timescales, as an alternative scenario to the classical ''quenching'' processes. Our results suggest that galaxy transformations in star-formation activity and morphology depend neither on the environment nor on being a satellite or the most massive galaxy of a halo. The only environmental dependence we find is the higher fast quenching efficiency in groups giving origin to poststarburst signatures.

  14. Summer Enrollment Blue=Old Program, Red=New Program

    E-Print Network [OSTI]

    Gering, Jon C.

    Summer Enrollment Blue=Old Program, Red=New Program 1559 14181358 1304 1166 1245 0 200 400 600 800;Summer Sections Offered Blue=Old Program, Red=New Program 142 135 160158 180 200 0 50 100 150 200 250 Generated Blue=Old Program, Red=New Program 5643 5983.5 5463 4953 5985.5 6961 0 1000 2000 3000 4000 5000

  15. The Red-Cockaded Woodpecker: A Selectively Annotated Bibliography

    E-Print Network [OSTI]

    Wishard, Lisa

    1998-01-01

    the impacts of Hurricane Hugo on lost habitat (87 percent)of Hurricane Hugo in 1989, the red-cockaded woodpecker lost

  16. Water Formatics Engineered formation of nanobubbles networks

    E-Print Network [OSTI]

    Jacob, Eshel Ben

    Water Formatics Engineered formation of nanobubbles networks in water and aqueous solutions We present the idea that the anomalous effects of rf-treatments of water and aqueous solution resulted from-bubble exchange interactions. These exchange interactions are mediated by the ordering of the water molecules

  17. INHIBITION OF PHOTOSYNTHESIS IN CERTAIN ALGAE BY EXTREME RED LIGHT

    E-Print Network [OSTI]

    Govindjee

    INHIBITION OF PHOTOSYNTHESIS IN CERTAIN ALGAE BY EXTREME RED LIGHT GOVINDJEE, EUGENE RABINOWITCH. INTRODUCTION It was shown in preceding papers (9, 10) that when the unicellular red alga Por- phyridium), these algae, when exposed to monochromatic light (bands isolated by a grating monochromator, band half

  18. MFR PAPER 1229 Red Snappers of the Carolina Coast

    E-Print Network [OSTI]

    Carolina and South Carolina ports takes large quantities of fishes typical of Caribbean reefs and banks valuable of the snappers in commerce and rec- reation. It is known off North Carolina and South Carolina on the red snapper. The red snapper is found from North Carolina south to Key West, around the entire Gulf

  19. PROVENCHER BRIDGE OVER THE RED RIVER WINNIpEG, MANITOBA

    E-Print Network [OSTI]

    ABSTRACT PROVENCHER BRIDGE OVER THE RED RIVER WINNIpEG, MANITOBA C.D. Stewart and B.D. Thompson of Manitoba Winnipeg, Manitoba Alternative design schemes to replace the 76-year-old Provencher Bridge over for construction of the bridge is discussed. I Stewart, Thompson and Rizkalla. Provencher Bridge over the Red River

  20. RED Bridge Funding Program Principles Applicable to the Plan

    E-Print Network [OSTI]

    Barge, Marcy

    RED Bridge Funding Program Principles Applicable to the Plan: The purpose of bridge funding in order to give the investigator an opportunity to regain extramural funding. RED will consider bridge is needed to retain key personnel and to maintain project momentum. Bridge funds are not intended to support

  1. ACARYOCHLORIS EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC PHOTOSYNTHESIS

    E-Print Network [OSTI]

    Oregon, University of

    ACARYOCHLORIS ­ EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC strain is shown to live epi- phytically on the red alga Gelidium caulacantheum, which itself is harvested by the red alga. Availability of far red light, however, is relatively unaffected by DOM or red

  2. Cometary panspermia explains the red rain of Kerala

    E-Print Network [OSTI]

    Godfrey Louis; A. Santhosh Kumar

    2003-10-05

    Red coloured rain occurred in many places of Kerala in India during July to September 2001 due to the mixing of huge quantity of microscopic red cells in the rainwater. Considering its correlation with a meteor airbust event, this phenomenon raised an extraordinary question whether the cells are extraterrestrial. Here we show how the observed features of the red rain phenomenon can be explained by considering the fragmentation and atmospheric disintegration of a fragile cometary body that presumably contains a dense collection of red cells. Slow settling of cells in the stratosphere explains the continuation of the phenomenon for two months. The red cells under study appear to be the resting spores of an extremophilic microorganism. Possible presence of these cells in the interstellar clouds is speculated from its similarity in UV absorption with the 217.5 nm UV extinction feature of interstellar clouds.

  3. Cold multinucleon transfer and formation of a dinuclear complex

    SciTech Connect (OSTI)

    Wilpert, M.; Gebauer, B.; Wilpert, T.; von Oertzen, W.; Bohlen, H.G.; Speer, J. (Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, D-14109 Berlin (Germany))

    1995-02-01

    Using a kinematical coincidence setup with [Delta][ital E]-[ital E] identification two-body reactions between medium heavy nuclei were studied in the vicinity of the Coulomb barrier. The measured angular distributions for transfer of up to four protons with additional transfer of neutrons show maxima at large c.m. angles of 120--140[degree]. For one- and partially for two-proton transfers the angular distributions are consistent with a one-step transfer mechanism, described by a distorted-wave Born approximation (DWBA) approach. The angular distributions of the three- and four-proton transfers show components in the forward angular region which cannot be described by DWBA. These contributions are interpreted as originating from the decay of a dinuclear complex; for this complex a lifetime of [ital r]=6[sub [minus]2][sup +6][times]10[sup [minus]22] s is deduced from the angle of rotation.

  4. RedSeal Comments on "Smart Grid RFI: Addressing Policy and Logistical...

    Energy Savers [EERE]

    RedSeal Comments on "Smart Grid RFI: Addressing Policy and Logistical Challenges. RedSeal Comments on "Smart Grid RFI: Addressing Policy and Logistical Challenges. RedSeal Comments...

  5. Studies on reaction runaways for Urex/Purex solvent-nitric acid and red-oil synthesis

    SciTech Connect (OSTI)

    Kumar, Shekhar; Kumar, Rajnish; Koganti, S.B.

    2008-07-01

    In PUREX/UREX processes for recycling of spent nuclear fuels, 30% TBP solvent is used, This solvent has a small solubility in the aqueous phase. During concentration of the process solutions by an evaporation route, a runaway reaction between TBP and nitric acid is initiated at above 130 deg. C, leading to rapid pressurization and finally containment failure if proper venting is not provided. Red oil was synthesized for the first time in India, and its physical properties as well as thermodynamic parameters for the reaction were determined. It was experimentally established that the presence of metallic nitrates was not essential for red-oil formation as thought earlier. Various experiments have been completed for single-phase as well as two-phase runs. The most important finding of this work was lowering of the limiting acid concentration from the conventional values. In fact, in these experiments, red oil could be formed even at 2 N aqueous acidity. Thus, safety guidelines based on the classical literature are obsolete. New guidelines for the red-oil-safety are required. (authors)

  6. Gastropods and their habitats from the northern Red Sea (Egypt: Safaga)

    E-Print Network [OSTI]

    Zuschin, Martin

    Gastropods and their habitats from the northern Red Sea (Egypt: Safaga) Part 1: Patellogastropoda. Keywords: Mollusca, biodiversity, Red Sea, Indian Ocean, Egypt, assemblages Zusammenfassung Mehr als 2100

  7. Properties of Luminous Red Galaxies in the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    T. Barber; A. Meiksin; T. Murphy

    2006-11-02

    We perform population synthesis modelling of a magnitude-limited sample of 4391 Luminous Red Galaxies selected from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4). We fit measured spectral indices using a large library of high resolution spectra, covering a wide range of metallicities and assuming an exponentially decaying star-formation rate punctuated by bursts, to obtain median-likelihood estimates for the light-weighted age, metallicity, stellar mass and extinction for the galaxies. The ages lie in the range 4-10 Gyr, peaking near 6 Gyr, with metallicities in the range -0.4<[Z/H]<0.4, peaking at [Z/H] ~ 0.2. Only a few per cent of the spectra are better fit allowing for a burst in addition to continuous star-formation. The total stellar masses of all the galaxies are confined to a very narrow range. Our results broadly agree with those of previous groups using an independent population synthesis code. We find, however, that our choice in priors results in ages 1-2 Gyr smaller, decreasing the peak star formation epoch from z=2.3 to z=1.3. We develop a metal evolution model incorporating stochastic star-formation quenching motivated by recent attempts to solve the `anti-hierarchical' formation problem of ellipticals. Two scenarios emerge, a closed box with an effective stellar yield of 0.26, and an accreting box with an effective stellar yield of 0.10. Both scenarios require an IMF weighted towards massive stars and characteristic star-formation quenching times of about 100 Myr, the expected lifetime of luminous QSOs. The models predict an anti-correlation between the age and mean metallicity similar to that observed.

  8. A reinterpretation of the Balakot Formation: Implications for the tectonics of the NW Himalaya, Pakistan

    E-Print Network [OSTI]

    Najman, Yani

    , Pakistan Yani Najman,1,2 Malcolm Pringle,3 Laurent Godin,4 and Grahame Oliver5 Received 2 April 2001 of the Himalayan foreland basin in Pakistan was originally described as a >8 km thick clastic red bed succession; 9320 Information Related to Geographic Region: Asia; KEYWORDS: Himalaya, Pakistan, Balakot Formation

  9. OH-initiated oxidation of benzene Part I. Phenol formation under atmospheric conditions

    E-Print Network [OSTI]

    OH-initiated oxidation of benzene Part I. Phenol formation under atmospheric conditions Rainer-radical initiated oxidation of benzene was studied in two simulation chambers: (1) the large-volume outdoor chamber-red spectroscopy (FTIR) were used to simultaneously measure phenol and benzene. The second study used only FTIR

  10. Extremely red stellar objects revealed by IPHAS

    E-Print Network [OSTI]

    N. J. Wright; R. Greimel; M. J. Barlow; J. E. Drew; M. -R. L. Cioni; A. A. Zijlstra; R. L. M. Corradi; E. A. González-Solares; P. Groot; J. Irwin; M. J. Irwin; A. Mampaso; R. A. H. Morris; D. Steeghs; Y. C. Unruh; N. Walton

    2008-11-04

    We present photometric analysis and follow-up spectroscopy for a population of extremely red stellar objects extracted from the point-source catalogue of the INT Photometric H-Alpha Survey (IPHAS) of the northern galactic plane. The vast majority of these objects have no previous identification. Analysis of optical, near- and mid-infrared photometry reveals that they are mostly highly-reddened asymptotic giant branch stars, with significant levels of circumstellar material. We show that the distribution of these objects traces galactic extinction, their highly reddened colours being a product of both interstellar and circumstellar reddening. This is the first time that such a large sample of evolved low-mass stars has been detected in the visual and allows optical counterparts to be associated with sources from recent infrared surveys. Follow-up spectroscopy on some of the most interesting objects in the sample has found significant numbers of S-type stars which can be clearly separated from oxygen-rich objects in the IPHAS colour-colour diagram. We show that this is due to the positions of different molecular bands relative to the narrow-band H-alpha filter used for IPHAS observations. The IPHAS (r' - H-alpha) colour offers a valuable diagnostic for identifying S-type stars. A selection method for identifying S-type stars in the galactic plane is briefly discussed and we estimate that over a thousand new objects of this type may be discovered, potentially doubling the number of known objects in this short but important evolutionary phase.

  11. Deformability of Plasmodium falciparum parasitized red blood cells

    E-Print Network [OSTI]

    Mills, John Philip, Ph. D. Massachusetts Institute of Technology

    2007-01-01

    The biophysical properties of the human red blood cell (RBC) permit large deformations required for passage through narrow capillaries and spleen sinusoids. Several pathologic conditions alter RBC deformability that can ...

  12. Western Red-tailed Skink Distribution in Southern Nevada

    SciTech Connect (OSTI)

    Hall, D. B. and Gergor, P. D.

    2011-11-01

    This slide show reports a study to: determine Western Red-tailed Skink (WRTS) distribution on Nevada National Security Site (NNSS); identify habitat where WRTS occur; learn more about WRTS natural history; and document distribution of other species.

  13. Infra-Red Process for Colour Fixation on Fabrics 

    E-Print Network [OSTI]

    Biau, D.; Raymond, D. J.

    1983-01-01

    Infra-red radiations find wide application in industrial processes as heating, drying, stoving and forming. The results are often far better than those from the other techniques: convection oven, gas IR etc . They come from the electric IR specific...

  14. Red River Valley REA- Heat Pump Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Red River Valley Rural Electric Association (RRVREA) offers a loan program to its members for air-source and geothermal heat pumps. Loans are available for geothermal heat pumps at a 5% fixed...

  15. Effects of red imported fire ants on songbird nest survival 

    E-Print Network [OSTI]

    Campomizzi, Andrew J.

    2009-05-15

    Invasive species are often implicated in population declines of native species through competition and predation. Red imported fire ant (Solenopsis invicta) predation of songbird nestlings and eggs has been documented. I conducted a replicated...

  16. Regulation of Pituitary Thyrotropin Production in Red Drum 

    E-Print Network [OSTI]

    Drone, Elizabeth

    2011-01-11

    of pituitary hormone production and secretion is accomplished by a portal system which delivers thyrotropin-releasing hormone to positively stimulate the pituitary to release more TSH. However, in teleost fish such as the red drum (Sciaenops ocellatus), TSH...

  17. Anisotropic light scattering of individual sickle red blood cells

    E-Print Network [OSTI]

    Kim, Youngchan

    We present the anisotropic light scattering of individual red blood cells (RBCs) from a patient with sickle cell disease (SCD). To measure light scattering spectra along two independent axes of elongated-shaped sickle RBCs ...

  18. Red Storm usage model :Version 1.12.

    SciTech Connect (OSTI)

    Jefferson, Karen L.; Sturtevant, Judith E.

    2005-12-01

    Red Storm is an Advanced Simulation and Computing (ASC) funded massively parallel supercomputer located at Sandia National Laboratories (SNL). The Red Storm Usage Model (RSUM) documents the capabilities and the environment provided for the FY05 Tri-Lab Level II Limited Availability Red Storm User Environment Milestone and the FY05 SNL Level II Limited Availability Red Storm Platform Milestone. This document describes specific capabilities, tools, and procedures to support both local and remote users. The model is focused on the needs of the ASC user working in the secure computing environments at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and SNL. Additionally, the Red Storm Usage Model maps the provided capabilities to the Tri-Lab ASC Computing Environment (ACE) requirements. The ACE requirements reflect the high performance computing requirements for the ASC community and have been updated in FY05 to reflect the community's needs. For each section of the RSUM, Appendix I maps the ACE requirements to the Limited Availability User Environment capabilities and includes a description of ACE requirements met and those requirements that are not met in that particular section. The Red Storm Usage Model, along with the ACE mappings, has been issued and vetted throughout the Tri-Lab community.

  19. Planet formation and migration

    E-Print Network [OSTI]

    John C B Papaloizou; Caroline Terquem

    2005-11-28

    We review the observations of extrasolar planets, ongoing developments in theories of planet formation, orbital migration, and the evolution of multiplanet systems.

  20. Recombination energy in double white dwarf formation

    E-Print Network [OSTI]

    Nandez, Jose L A; Lombardi, James C

    2015-01-01

    In this Letter we investigate the role of recombination energy during a common envelope event. We confirm that taking this energy into account helps to avoid the formation of the circumbinary envelope commonly found in previous studies. For the first time, we can model a complete common envelope event, with a clean compact double white dwarf binary system formed at the end. The resulting binary orbit is almost perfectly circular. In addition to considering recombination energy, we also show that between 1/4 and 1/2 of the released orbital energy is taken away by the ejected material. We apply this new method to the case of the double-white dwarf system WD 1101+364, and we find that the progenitor system at the start of the common envelope event consisted of a $\\sim1.5M_\\odot$ red giant star in a $\\sim 30$ day orbit with a white dwarf companion.

  1. Bulk glass formation in the Pd{endash}Ni{endash}P system

    SciTech Connect (OSTI)

    He, Y.; Schwarz, R.B.; Archuleta, J.I. [Center for Materials Science, MS K-765, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Center for Materials Science, MS K-765, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    1996-09-01

    Bulk amorphous Pd{endash}Ni{endash}P rods with diameters ranging from 10 to 25 mm were prepared by a fluxing technique over a wide composition range. For most bulk glassy alloys studied, the difference between the glass transition temperature and the crystallization temperature, {ital T}{sub {ital x}}{minus}{ital T}{sub {ital g}}, is larger than 90 K. Of all the alloy compositions examined, Pd{sub 40}Ni{sub 40}P{sub 20} has the highest glass formability, and 300-g bulk amorphous cylinders, 25 mm in diameter and 50 mm in length, were easily and repeatedly formed. This size, however, is not an upper limit. The elastic properties of these bulk amorphous alloys were determined by a resonant ultrasound spectroscopy technique.

  2. Shear-response of the spectrin dimer-tetramer equilibrium in the red blood cell membrane

    SciTech Connect (OSTI)

    An, Xiuli; Lecomte, M. Christine; Chasis, Joel Anne; Mohandas, Narla; Gratzer, Walter

    2003-06-18

    The red cell membrane derives its elasticity and resistance to mechanical stresses from the membrane skeleton, a network composed of spectrin tetramers. These are formed by the head-to-head association of pairs of heterodimers attached at their ends to junctional complexes of several proteins. Here we examine the dynamics of the spectrin dimer-dimer association in the intact membrane. We show that univalent fragments of spectrin, containing the dimer self-association site, will bind to spectrin on the membrane and thereby disrupt the continuity of the protein network. This results in impairment of the mechanical stability of the membrane. When, moreover, the cells are subjected to a continuous low level of shear, even at room temperature, the incorporation of the fragments and the consequent destabilization of the membrane are greatly accentuated. It follows that a modest shearing force, well below that experienced by the red cell in the circulation, is sufficient to sever dimer-dimer links in the network. Our results imply (1) that the membrane accommodates the enormous distortions imposed on it during the passage of the cell through the micro vasculature by means of local dissociation of spectrin tetramers to dimers, (2) that the network in situ is in a dynamic state and under goes a ''breathing'' action of tetramer dissociation and re-formation.

  3. Effects of Gossypol Consumption on the Growth Traits of Red Deer Stags and Supplemental Melatonin for Advancement of Estrous Cycles in Red Deer Hinds. 

    E-Print Network [OSTI]

    Morgan, Shane

    2011-08-08

    Experiment I studied the effect of dietary gossypol (G) on antler and body growth traits of red deer stags, whereas Experiment II studied the effect of exogenous melatonin on female red deer reproductive traits. Specifically ...

  4. Red phosphors for use in high CRI fluorescent lamps

    DOE Patents [OSTI]

    Srivastava, Alok; Comanzo, Holly; Manivannan, Vankatesan; Setlur, Anant Achyut

    2005-11-15

    Novel red emitting phosphors for use in fluorescent lamps resulting in superior color rendering index values compared to conventional red phosphors. Also disclosed is a fluorescent lamp including a phosphor layer comprising blends of one or more of a blue phosphor, a blue-green phosphor, a green phosphor and a red a phosphor selected from the group consisting of SrY.sub.2 O.sub.4 :Eu.sup.3+, (Y,Gd)Al.sub.3 B.sub.4 O.sub.12 :Eu.sup.3+, and [(Y.sub.1-x-y-m La.sub.y)Gd.sub.x ]BO.sub.3 :Eu.sub.m wherein y<0.50 and m=0.001-0.3. The phosphor layer can optionally include an additional deep red phosphor and a yellow emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of the disclosed red phosphors in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over the course of the lamp life.

  5. Ages of White Dwarf-Red Subdwarf Systems

    E-Print Network [OSTI]

    Hektor Monteiro; Wei-Chun Jao; Todd Henry; John Subasavage; Thom Beaulieu

    2005-10-12

    We provide the first age estimates for two recently discovered white dwarf-red subdwarf systems, LHS 193AB and LHS 300AB. These unusual systems provide a new opportunity for linking the reliable age estimates for the white dwarfs to the (measurable) metallicities of the red subdwarfs. We have obtained precise photometry in the $V_{J}R_{KC}I_{KC}JH$ bands and spectroscopy covering from 6000\\AA to 9000\\AA for the two new systems, as well as for a comparison white dwarf-main sequence red dwarf system, GJ 283 AB. Using model grids available in the literature, we estimate the cooling age as well as temperature, surface gravity, mass, progenitor mass and {\\it total} lifetimes of the white dwarfs. The results indicate that the two new systems are probably ancient thick disk objects with ages of at least 6-9 Gyr. We also conduct searches of red dwarf and white dwarf compendia from SDSS data and the L{\\'e}pine Shara Proper Motion (LSPM) catalog for additional common proper motion white dwarf-red subdwarf systems. Only seven new candidate systems are found, which indicates the rarity of these systems.

  6. Rotational and radial velocities of 1.3-2.2 M {sub ?} red giants in open clusters

    SciTech Connect (OSTI)

    Carlberg, Joleen K.

    2014-06-01

    This study presents the rotational distribution of red giant (RG) stars in 11 old to intermediate age open clusters. The masses of these stars are all above the Kraft break, so they lose negligible amounts of their birth angular momentum (AM) during the main-sequence (MS) evolution. However, they do span a mass range with quite different AM distributions imparted during formation, with the stars less massive than ?1.6M {sub ?} arriving on the MS with lower rotation rates than the more massive stars. The majority of RGs in this study are slow rotators across the entire red giant branch regardless of mass, supporting the picture that intermediate-mass stars rapidly spin down when they evolve off the MS and develop convection zones capable of driving a magnetic dynamo. Nevertheless, a small fraction of RGs in open clusters show some level of enhanced rotation, and faster rotators are as common in these clusters as in the field RG population. Most of these enhanced rotators appear to be red clump stars, which is also true of the underlying stellar sample, while others are clearly RGs that are above or below the clump. In addition to rotational velocities, the radial velocities (RVs) and membership probabilities of individual stars are also presented. Cluster heliocentric RVs for NGC 6005 and Pismis 18 are reported for the first time.

  7. Notes on Star Formation

    E-Print Network [OSTI]

    Krumholz, Mark R

    2015-01-01

    This book provides an introduction to the field of star formation at a level suitable for graduate students or advanced undergraduates in astronomy or physics. The structure of the book is as follows. The first two chapters begin with a discussion of observational techniques, and the basic phenomenology they reveal. The goal is to familiarize students with the basic techniques that will be used throughout, and to provide a common vocabulary for the rest of the book. The next five chapters provide a similar review of the basic physical processes that are important for star formation. Again, the goal is to provide a basis for what follows. The remaining chapters discuss star formation over a variety of scales, starting with the galactic scale and working down to the scales of individual stars and their disks. The book concludes with a brief discussion of the clearing of disks and the transition to planet formation. The book includes five problem sets, complete with solutions.

  8. Word formation in Thadou

    E-Print Network [OSTI]

    Haokip, Pauthang

    2014-01-01

    As stated above, compound words of Thadou are mostlyNote that the resulting new words are always nouns. a. b. c.bad’ (negative) Haokip: Word formation in Thadou a. â-sâa ?

  9. Improving the Infra-red of Holographic Descriptions of QCD

    E-Print Network [OSTI]

    Nick Evans; Andrew Tedder; Tom Waterson

    2007-01-03

    A surprisingly good holographic description of QCD can be obtained from naive five dimensional gauge theory on a truncated AdS space. We seek to improve the infra-red description of QCD in such models by using a more sophisticated metric and an action derived from string theory duals of chiral symmetry breaking. Our metric is smooth into the infra-red and the chiral condensate is a prediction of the dynamics. The theory reproduces QCD meson data at the 10% level.

  10. New red phosphor for near-ultraviolet light-emitting diodes with high color-purity

    SciTech Connect (OSTI)

    Wang, Zhengliang; He, Pei; Wang, Rui; Zhao, Jishou; Gong, Menglian

    2010-02-15

    New red phosphors, Na{sub 5}Eu(MoO{sub 4}){sub 4} doped with boron oxide were prepared by the solid-state reaction. Their structure and photo-luminescent properties were investigated. With the introduction of boron oxide, the red emission intensity of the phosphors under 395 nm excitation is strengthened, with high color-purity (x = 0.673, y = 0.327). The single red light-emitting diode was obtained by combining InGaN chip with the red phosphor, bright red light can be observed by naked eyes from the red light-emitting diodes under a forward bias of 20 mA.

  11. Reunin Red CAPAP-H. Murcia 13-06-07

    E-Print Network [OSTI]

    Giménez, Domingo

    ) #12;Reunión Red CAPAP-H. Murcia 13-06-07 Sistemas de computación disponibles HP Cluster Superdome: 2 nodos SMP de 64 procesadores cada uno. 2 servidores HP Integrity Superdome con 64 procesadores Itanium2 configuración de los nodos de cálculo es la siguinte: · 1 x Sistema SMP Integrity tipo Superdome con 64 CPUs

  12. Alcian Blue Alizarin Red Skeletal Staining October 2003

    E-Print Network [OSTI]

    De Robertis, Eddy M.

    Alcian Blue ­ Alizarin Red Skeletal Staining October 2003 Eddy M. De Robertis 1. Dissect mice damage. 3. Replace 95% ethanol with Alcian blue staining solution for 1-3 days slowly rocking at room days. 4. Replace Alcian blue solution with 95% ethanol for 6 hours slowly rocking at room temperature

  13. Guide to Red Fluorescent Proteins and Biosensors for Flow Cytometry

    E-Print Network [OSTI]

    Verkhusha, Vladislav V.

    CHAPTER 17 Guide to Red Fluorescent Proteins and Biosensors for Flow Cytometry Kiryl D. Piatkevich. Simultaneous Detection of Multiple FPs V. Fluorescent Timers VI. FRET-Based Genetically Encoded Biosensors A. Conventional FRET Pairs B. Novel Advanced FRET Pairs C. FRET Biosensors in Multicolor Flow Cytometry D

  14. Seeing Red: New Tools for Mapping and Understanding Fire Severity

    E-Print Network [OSTI]

    1 Seeing Red: New Tools for Mapping and Understanding Fire Severity The 2012 fire season was resource managers tools to assess severity before, during, and after a wildfire. FIRESEV has produced a suite of tools for a wide range of fire management applications, including real-time forecasts

  15. Analysis of records of embryo production in Red Brahman cows 

    E-Print Network [OSTI]

    Riano Rocha, Edgar Hernando

    2005-11-01

    Records of embryo production in Red Brahman donor cows (n=50) and F1 recipients (n=531) were evaluated from the collection day to the birth of the embryo produced. The effects of the sire of the donor and the embryo, ...

  16. Varieties of Cotton in the Red Prairies of Northwest Texas. 

    E-Print Network [OSTI]

    Quinby, John Roy

    1927-01-01

    ......................................... Results in 1924 12 ......................................... ResuTts in 1925 13 .......................................... Resnlts in 1926 14 BULLETIN NO. 366 - NOVEMBER, 1927 VARIETIES OF COTTON IN THE RED PRAIRIES OF NORTH- WEST TEXAS Substation No..... ............... Durango. ................. Sunshine.. ................ Rowden.. ................. Snowflake.. ............... Summerour & Co Vernon Texas Summerour & SO; ~erno; Texas R. E. Hudson, ~uhurn, AI;. Cris Reuter, New Orleans, La. Texas Substat~on No.. 12...

  17. Resource Stewardship Tips for 2012 Recreational Red Snapper Season

    E-Print Network [OSTI]

    Watson, Craig A.

    trying to catch a bigger fish may have unintended consequences when water temperatures approach the mid creating a thermocline. The result is temperature shock and possibly death for the fish which remains rebuild and are reflected by the numerous large fish landed. Red Snapper dominate many Gulf of Mexico

  18. Thermo Exam 1 pg 1 Fall 2010 RED barcode here

    E-Print Network [OSTI]

    Hart, Gus

    Thermo Exam 1 ­ pg 1 Fall 2010 RED barcode here Physics 123 section 2 Exam 1 Colton 2-3669 Please otherwise instructed, give all numerical answers for the worked problems in SI units, to 3 or 4 significant not get this test booklet back. #12;Thermo Exam 1 ­ pg 2 (15 pts) Problem 1: Multiple choice conceptual

  19. Thermo Exam 2 pg 1 Fall 2010 RED barcode here

    E-Print Network [OSTI]

    Hart, Gus

    Thermo Exam 2 ­ pg 1 Fall 2010 RED barcode here Physics 123 section 2 Exam 2 Colton 2-3669 Please in SI units, to 3 or 4 significant digits. For answers that rely on intermediate results, remember to write down your CID at the top of the page? _________ #12;Thermo Exam 1 ­ pg 2 (15 pts) Problem 1

  20. ORIGINAL PAPER Responses of red deer (Cervus elaphus) to regular

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Responses of red deer (Cervus elaphus) to regular disturbance by hill walkers Angela calving rates in elk Cervus elaphus canadensis have been linked to human disturbance (Philips-recognised that the effect of disturbance can vary with its predictability; unexpected events, such as hill walkers

  1. Direct In Vivo Electrochemical Detection of Haemoglobin in Red Blood Cells

    E-Print Network [OSTI]

    Toh, Rou Jun

    The electrochemical behavior of iron ion in haemoglobin provides insight to the chemical activity in the red blood cell which is important in the field of hematology. Herein, the detection of haemoglobin in human red blood ...

  2. The Red Storm Architecture and Early Experiences with Multi-core...

    Office of Scientific and Technical Information (OSTI)

    with Multi-core Processors Citation Details In-Document Search Title: The Red Storm Architecture and Early Experiences with Multi-core Processors The Red Storm architecture, which...

  3. T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and...

    Office of Environmental Management (EM)

    12: Red Hat Enterprise MRG Grid 2.0 security, bug fix and enhancement update T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and enhancement update September 8, 2011 -...

  4. T-563: Red Hat Directory Server Bugs Let Local Users Gain Elevated...

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

    T-671: Red Hat system-config-firewall Lets Local Users Gain Root Privileges V-041: Red Hat CloudForms Multiple Vulnerabilities U-198: IBM Lotus Expeditor Multiple Vulnerabilities...

  5. 52 Plant Protection Quarterly Vol.18(2) 2003 The red coconut scale (Furcaspis oceanica

    E-Print Network [OSTI]

    Reddy, Gadi VP

    52 Plant Protection Quarterly Vol.18(2) 2003 Summary The red coconut scale (Furcaspis oceanica agent of the red coconut scale. Keywords: Scale insect, Furcaspis oceanica, Homoptera, Diaspididae, parasitoid, Adelencyrtus oceanicus, Hy- menoptera, Encyrtidae, coconut, biologi- cal control, Guam

  6. Evaluation of various sulphur amino acid compounds in the diet of red drum, Sciaenops ocellatus 

    E-Print Network [OSTI]

    Goff, Jonathan B

    2003-01-01

    Refinement of diet formulations to enhance the efficiency of red drum production continues to be pursued. Based on previous studies, the sulfur amino acid (SAA) requirement of red drum for methionine plus cystine appears to be most limiting, which...

  7. Sedimentary processes of the Red River between Denison Dam, TX and Alexandria, LA 

    E-Print Network [OSTI]

    Weirich, Thomas Moody - Kenyon

    1990-01-01

    the processes that govern the suspended sediment concentration of the Red River; processes which may impact river navigation and the operation of lock and dams currently being constructed on the Red River between Alexandria, LA and Shreveport, LA. Knowledge.... 2. changes in land use which have promoted erosion of the lands along the reach of the Red River between Index, AR and Shreveport, LA. 3. easily erodible fine grained fractions that may be present in, or outcrop immediately adjacent to, the Red...

  8. NEWS & VIEWS PATTERN FORMATION

    E-Print Network [OSTI]

    Loss, Daniel

    no apologies for investing energy into problems of specific application to a particular process in nature, and having the curiosity to want to find out how they work. The general public, and especially children flow/surface growth system in a rarely explored region of parameter space for such pattern formation

  9. Isolating Triggered Star Formation

    E-Print Network [OSTI]

    Elizabeth J. Barton; Jacob A. Arnold; Andrew R. Zentner; James S. Bullock; Risa H. Wechsler

    2007-08-21

    Galaxy pairs provide a potentially powerful means of studying triggered star formation from galaxy interactions. We use a large cosmological N-body simulation coupled with a well-tested semi-analytic substructure model to demonstrate that the majority of galaxies in close pairs reside within cluster or group-size halos and therefore represent a biased population, poorly suited for direct comparison to ``field'' galaxies. Thus, the frequent observation that some types of galaxies in pairs have redder colors than ``field'' galaxies is primarily a selection effect. We select galaxy pairs that are isolated in their dark matter halos with respect to other massive subhalos (N=2 halos) and a control sample of isolated galaxies (N=1 halos) for comparison. We then apply these selection criteria to a volume-limited subset of the 2dF Galaxy Redshift Survey with M_Bj ~ 5 above their average past value, while only 10% of isolated galaxies in the control sample show this level of enhancement. Thus, 14% (20 %) of the galaxies in these close pairs show clear triggered star formation. The isolation criteria we develop provide a means to constrain star formation and feedback prescriptions in hydrodynamic simulations and a very general method of understanding the importance of triggered star formation in a cosmological context. (Abridged.)

  10. Red Algae Lose Key Mitochondrial Genes in Response to Becoming Parasitic

    E-Print Network [OSTI]

    Lane, Chris

    Red Algae Lose Key Mitochondrial Genes in Response to Becoming Parasitic Lillian Hancock1 , Lynda independently evolved hundreds of times among the floridiophyte red algae. Much is known about the life history class of red algae, Plocamiocolax puvinata, has lost the atp8 gene entirely, indicating that this gene

  11. The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model

    E-Print Network [OSTI]

    de Villiers, Marienne

    Chapter 4 The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model #12;74 #12;75 The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model Abstract The onset and duration of primary moult were investigated for Red-billed Quelea Quelea quelea

  12. Red-belted clearwing Synanthedon myopaeformis Michigan State University's invasive species factsheets

    E-Print Network [OSTI]

    Isaacs, Rufus

    Red-belted clearwing Synanthedon myopaeformis Michigan State University's invasive species State University IPM Program and M. Philip of Michigan Department of Agriculture. The red-belted. Michigan risk maps for exotic plant pests. Other common names small red-belted clearwing, apple clearwing

  13. "Red Sore Disease"in Game Fish1 Peggy Reed and Ruth Francis-Floyd2

    E-Print Network [OSTI]

    Watson, Craig A.

    VM85 "Red Sore Disease"in Game Fish1 Peggy Reed and Ruth Francis-Floyd2 1. This document is VM85 fish is generically referred to as "red sore disease." This problem usually occurs in the spring on their fish. Typically, "red sore disease" is caused by two organisms, Aeromonas hydrophila , a bacterium

  14. Upper Middle Mainstem Columbia River Subbasin Focal Species Information, Red-winged Blackbird

    E-Print Network [OSTI]

    Appendix C Upper Middle Mainstem Columbia River Subbasin Focal Species Information, Red-winged Blackbird Introduction The red-winged black bird is one of the most abundant birds in North America (Marshall et al. 2003). Red-winged Blackbirds are extremely adaptable; successfully colonizing many small

  15. Extremely red galaxies in the Phoenix Deep Survey

    E-Print Network [OSTI]

    A. M. Hopkins; J. Afonso; A. Georgakakis; M. Sullivan; B. Mobasher; L. E. Cram

    2003-09-04

    The Phoenix Deep Survey (PDS) is a multiwavelength survey based on deep 1.4 GHz radio observations used to identify a large sample of star forming galaxies to z=1. Here we present an exploration of the evolutionary constraints on the star-forming population imposed by the 1.4 GHz source counts, followed by an analysis of the average properties of extremely red galaxies in the PDS, by using the "stacking" technique.

  16. Advisor Self Service -General Overview Signing into MyRED

    E-Print Network [OSTI]

    Powers, Robert

    tab allows you to do a class search for a specific term. Click on the drop down box to find the term://www.unl.edu/ 3. From the Current Student Link, click on the MyRED Link 4. Enter your NUID number in the NUID field 5. Enter your password (Use the password you use to access Firefly) 6. Click Sign In Student

  17. Red Cliffs Campground, Cedar City District, Utah | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease |Records Management Field Officer (RMFO) Records ManagementEconomyRed Cliffs

  18. Title: Super-rotation and Great Red Spots -- statistical mechanics

    E-Print Network [OSTI]

    All known slowly-rotating cases in the solar system - Venus and Titan - have super-rotation. The second discovery concerns problem (2) on the formation of GRS ...

  19. Emptiness Formation Probability

    E-Print Network [OSTI]

    Nicholas Crawford; Stephen Ng; Shannon Starr

    2014-12-30

    We present rigorous upper and lower bounds on the emptiness formation probability for the ground state of a spin-$1/2$ Heisenberg XXZ quantum spin system. For a $d$-dimensional system we find a rate of decay of the order $\\exp(-c L^{d+1})$ where $L$ is the sidelength of the box in which we ask for the emptiness formation event to occur. In the $d=1$ case this confirms previous predictions made in the integrable systems community, though our bounds do not achieve the precision predicted by Bethe ansatz calculations. On the other hand, our bounds in the case $d \\geq 2$ are new. The main tools we use are reflection positivity and a rigorous path integral expansion which is a variation on those previously introduced by Toth, Aizenman-Nachtergaele and Ueltschi.

  20. Formate-assisted pyrolysis

    DOE Patents [OSTI]

    DeSisto, William Joseph; Wheeler, Marshall Clayton; van Heiningen, Adriaan R. P.

    2015-03-17

    The present invention provides, among other thing, methods for creating significantly deoxygenated bio-oils form biomass including the steps of providing a feedstock, associating the feedstock with an alkali formate to form a treated feedstock, dewatering the treated feedstock, heating the dewatered treated feedstock to form a vapor product, and condensing the vapor product to form a pyrolysis oil, wherein the pyrolysis oil contains less than 30% oxygen by weight.

  1. Method using CO for extending the useful shelf-life of refrigerated red blood cells

    DOE Patents [OSTI]

    Bitensky, Mark W. (Los Alamos, NM)

    1995-01-01

    Method using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient.

  2. Method using CO for extending the useful shelf-life of refrigerated red blood cells

    DOE Patents [OSTI]

    Bitensky, M.W.

    1995-12-19

    A method is disclosed using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient. 5 figs.

  3. 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

  4. Petroleum Engineering 321 Formation Evaluation

    E-Print Network [OSTI]

    measurements to estimate hydrocarbon reserves and petrophysical properties of the formation such as porosity Description: Introduction to well-log interpretation for formation evaluation of hydrocarbon, net pay thickness, water/hydrocarbon saturation, permeability, and saturation-dependent capillary

  5. Red Flag Indicators in Export Transactions The following are some indicators (red flags) that a buyer of your products may not be

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Red Flag Indicators in Export Transactions The following are some indicators (red flags) that a buyer of your products may not be authorized to receive them due to Export Administration Regulations are for domestic use or re- export. The company is less than five years old. The buyer or their address is similar

  6. Structure of the red fluorescent protein from a lancelet (Branchiostoma lanceolatum): a novel GYG chromophore covalently bound to a nearby tyrosine

    SciTech Connect (OSTI)

    Pletnev, Vladimir Z., E-mail: vzpletnev@gmail.com; Pletneva, Nadya V.; Lukyanov, Konstantin A.; Souslova, Ekaterina A.; Fradkov, Arkady F.; Chudakov, Dmitry M.; Chepurnykh, Tatyana; Yampolsky, Ilia V. [Russian Academy of Sciences, Moscow (Russian Federation); Wlodawer, Alexander [National Cancer Institute, Frederick, MD 21702 (United States); Dauter, Zbigniew [National Cancer Institute, Argonne, IL 60439 (United States); Pletnev, Sergei, E-mail: vzpletnev@gmail.com [National Cancer Institute, Argonne, IL 60439 (United States); SAIC-Frederick, Argonne, IL 60439 (United States); Russian Academy of Sciences, Moscow (Russian Federation)

    2013-09-01

    The crystal structure of the novel red emitting fluorescent protein from lancelet Branchiostoma lanceolatum (Chordata) revealed an unusual five residues cyclic unit comprising Gly58-Tyr59-Gly60 chromophore, the following Phe61 and Tyr62 covalently bound to chromophore Tyr59. A key property of proteins of the green fluorescent protein (GFP) family is their ability to form a chromophore group by post-translational modifications of internal amino acids, e.g. Ser65-Tyr66-Gly67 in GFP from the jellyfish Aequorea victoria (Cnidaria). Numerous structural studies have demonstrated that the green GFP-like chromophore represents the ‘core’ structure, which can be extended in red-shifted proteins owing to modifications of the protein backbone at the first chromophore-forming position. Here, the three-dimensional structures of green laGFP (?{sub ex}/?{sub em} = 502/511 nm) and red laRFP (?{sub ex}/?{sub em} ? 521/592 nm), which are fluorescent proteins (FPs) from the lancelet Branchiostoma lanceolatum (Chordata), were determined together with the structure of a red variant laRFP-?S83 (deletion of Ser83) with improved folding. Lancelet FPs are evolutionarily distant and share only ?20% sequence identity with cnidarian FPs, which have been extensively characterized and widely used as genetically encoded probes. The structure of red-emitting laRFP revealed three exceptional features that have not been observed in wild-type fluorescent proteins from Cnidaria reported to date: (i) an unusual chromophore-forming sequence Gly58-Tyr59-Gly60, (ii) the presence of Gln211 at the position of the conserved catalytic Glu (Glu222 in Aequorea GFP), which proved to be crucial for chromophore formation, and (iii) the absence of modifications typical of known red chromophores and the presence of an extremely unusual covalent bond between the Tyr59 C{sup ?} atom and the hydroxyl of the proximal Tyr62. The impact of this covalent bond on the red emission and the large Stokes shift (?70 nm) of laRFP was verified by extensive structure-based site-directed mutagenesis.

  7. Young Red Spheroidal Galaxies in the Hubble Deep Fields: Evidence for a Truncated IMF at ~2M_solar and a Constant Space Density to z~2

    E-Print Network [OSTI]

    Tom Broadhurst; Rychard J. Bouwens

    1999-03-08

    The optical-IR images of the Northern and Southern Hubble Deep Fields are used to measure the spectral and density evolution of early-type galaxies. The mean optical SED is found to evolve passively towards a mid F-star dominated spectrum by z ~ 2. We demonstrate with realistic simulations that hotter ellipticals would be readily visible if evolution progressed blueward and brightward at z > 2, following a standard IMF. The colour distributions are best fitted by a `red' IMF, deficient above ~2 M_solar and with a spread of formation in the range 1.5 3 Gyrs independent of its formation redshift. Regarding density evolution, we demonstrate that the sharp decline in numbers claimed at z > 1 results from a selection bias against distant red galaxies in the optical, where the flux is too weak for morphological classification, but is remedied with relatively modest IR exposures revealing a roughly constant space density to z ~ 2. We point out that the lack of high mass star-formation inferred here and the requirement of metals implicates cooling-flows of pre-enriched gas in the creation of the stellar content of spheroidal galaxies. Deep-field X-ray images will be very helpful to examine this possibility.

  8. Quiescent Luminous Red Galaxies (LRGs) as Cosmic Chronometers: on the Significance of the Mass and Environmental Dependence

    E-Print Network [OSTI]

    Liu, Gaochao; Xie, Lizhi; Chen, Xuelei; Zhao, Yongheng

    2015-01-01

    Massive luminous red galaxies (LRGs) are believed to be evolving passively and can be used as cosmic chronometers to estimate the Hubble constant. However, different LRGs may locate in different environments. The environmental effects may limit the use of the LRGs as cosmic chronometers. We aim to investigate the environmental and mass dependence of the formation of "quiescent" LRGs selected from the Sloan Digital Sky Survey Date Release 8 and to pave the way for using the LRGs as cosmic chronometers. Using the population synthesis software STARLIGHT, we derive the stellar populations in each LRG through the full spectrum fitting and obtain the mean age distribution and the mean star formation history (SFH) of those LRGs. We find that there is no apparent dependence of the mean age and the SFH of quiescent LRGs on their environment, while the ages of those quiescent LRGs weakly depend on their mass. We compare the SFHs of the SDSS LRGs with those obtained from a semi-analytical galaxy formation model, and fin...

  9. Inhibition of Photosynthesis in Some Algae by Extreme-Red Light Author(s): Eugene Rabinowitch, Govindjee, Jan B. Thomas

    E-Print Network [OSTI]

    Govindjee

    Inhibition of Photosynthesis in Some Algae by Extreme-Red Light Author(s): Eugene Rabinowitch://www.jstor.org #12;Inhibition of Photosynthesis in Some Algae by Extreme"Red Light Abstract. Photosynthesis produced by far-red light (about 700 m,b) is reversibly inhibited in some algae by extreme-red light ( 750 m

  10. Picture from http://www.first-school.ws/activities/crafts/animals/birds/turkeymaple.htm A Red Maple Turkey Centerpiece

    E-Print Network [OSTI]

    Ashline, George

    A Red Maple Turkey Centerpiece Materials: -Toilet Paper Tube -A Couple of Red Maple Leaves (any color make a Turkey with using a Red Maple Tree? "Did you know?": Red Maples have a huge span of colors when have color in it. · After collecting about 3 leaves each, we will start constructing our turkey

  11. The red extended structure of IC10, the nearest blue compact galaxy

    E-Print Network [OSTI]

    Gerbrandt, Stephanie A N; Irwin, Mike

    2015-01-01

    The Local Group starburst galaxy IC10 is the closest example of a blue compact galaxy. Here, we use optical gi imaging from CFHT/MegaCam and near infra-red JHK imaging from UKIRT/WFCAM to conduct a comprehensive survey of the structure of IC10. We examine the spatial distribution of its resolved young, intermediate and old stellar populations to large radius and low effective surface brightness levels. Akin to other dwarfs with multiple populations of different ages, stellar populations of decreasing average age are increasingly concentrated in this galaxy. We find that the young, star-bursting population, and the AGB population, are both offset from the geometric center of the older RGB population by a few hundred parsecs, implying that the younger star formation occurred significantly away from the center of the galaxy. The RGB population traces an extended structure that is typical of blue compact galaxies, with an effective radius of ~5.75 arcmins (~1.25 kpc). These measurements show that IC10 is much mor...

  12. The Soils of Bowie, Denton, Freestone, and Red River Counties. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1928-01-01

    in the next column. This is 18 to 24 bushels the first crop. The yields fall off rapidly in succeeding crops, shom- ing the importance of nitrogen. Classification of Soils of Bowie County Upland soils of the forested area: Non-calcareous, gray to brownish...-calcareous, gray to brownish-gray surface soil, ycl upper subsoil, red lower subsoil. Crowley silt loam.-Upland soil of the original forested area n calcareous with dark gray to brown surface soil and heavy mottled g and brown subsoil. Leaf very fine sandy...

  13. Red River Hot Springs Geothermal Area | 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 onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy MarketingNewOpenRecycledMesa, Arizona:Red River

  14. Red River Parish, Louisiana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy MarketingNewOpenRecycledMesa, Arizona:RedRiver

  15. American Red Cross Blood Drive Hanford Health and Safety Exposition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWith PropaneNaturalTest YourProgram AlumniofannounceRed Cross

  16. Suzhou Red Maple Wind Blade Mould Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendo New Energy Equipment CoSolarReservoirPowerRed Maple

  17. Red River Valley Coop Pwr Assn | Open Energy Information

    Open Energy Info (EERE)

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

  18. Renewable Energies Development RED 2002 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-b <RefurbishedDevelopment RED 2002 Jump to:

  19. Red Storm IO Performance Analysis. (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeedingConnect(Conference) |(Patent) | SciTech ConnectRed Storm IO

  20. EERE: VTO - Red Leaf PNG Image | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|Department of5 Peer ReviewUse of HeAgenda EEREEERE WebMarch 2016 <Red

  1. The rotational order–disorder structure of the reversibly photoswitchable red fluorescent protein rsTagRFP

    SciTech Connect (OSTI)

    Pletnev, Sergei, E-mail: pletnevs@mail.nih.gov [Argonne National Laboratory, Argonne, IL 60439 (United States); Argonne National Laboratory, Argonne, IL 60439 (United States); Subach, Fedor V.; Verkhusha, Vladislav V. [Albert Einstein College of Medicine, Bronx, NY 10461 (United States); Dauter, Zbigniew, E-mail: pletnevs@mail.nih.gov [Argonne National Laboratory, Argonne, IL 60439 (United States)

    2014-01-01

    An analysis of the rotational order–disorder structure of the reversibly photoswitchable red fluorescent protein rsTagRFP is presented. The rotational order–disorder (OD) structure of the reversibly photoswitchable fluorescent protein rsTagRFP is discussed in detail. The structure is composed of tetramers of 222 symmetry incorporated into the lattice in two different orientations rotated 90° with respect to each other around the crystal c axis and with tetramer axes coinciding with the crystallographic twofold axes. The random distribution of alternatively oriented tetramers in the crystal creates the rotational OD structure with statistically averaged I422 symmetry. Despite order–disorder pathology, the structure of rsTagRFP has electron-density maps of good quality for both non-overlapping and overlapping parts of the model. The crystal contacts, crystal internal architecture and a possible mechanism of rotational OD crystal formation are discussed.

  2. Triplet Formation by Charge Recombination in Thin Film Blends of Perylene Red and Pyrene: Developing a Target Model for the

    E-Print Network [OSTI]

    van Stokkum, Ivo

    that the first organic solar cell developed by Tang in 1986 contained a perylene dye (3,4:9,10-perylene perylene dyes are the n-type material in organic solar cells.4 As they are the best n-type organic, and lightweight solar cells that can be rolled up. In principle, such devices can be inexpensive when produced

  3. DUST FORMATION IN MACRONOVAE

    SciTech Connect (OSTI)

    Takami, Hajime; Ioka, Kunihito [Institute of Particle and Nuclear Studies, KEK, 1-1, Oho, Tsukuba 305-0801 (Japan); Nozawa, Takaya, E-mail: takami@post.kek.jp, E-mail: kunihito.ioka@kek.jp, E-mail: takaya.nozawa@nao.ac.jp [National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588 (Japan)

    2014-07-01

    We examine dust formation in macronovae (as known as kilonovae), which are the bright ejecta of neutron star binary mergers and one of the leading sites of r-process nucleosynthesis. In light of information about the first macronova candidate associated with GRB 130603B, we find that dust grains of r-process elements have difficulty forming because of the low number density of the r-process atoms, while carbon or elements lighter than iron can condense into dust if they are abundant. Dust grains absorb emission from ejecta with an opacity even greater than that of the r-process elements, and re-emit photons at infrared wavelengths. Such dust emission can potentially account for macronovae without r-process nucleosynthesis as an alternative model. This dust scenario predicts a spectrum with fewer features than the r-process model and day-scale optical-to-ultraviolet emission.

  4. A Generalized {ital K} Correction for Type Ia Supernovae: Comparing {ital R}-band Photometry Beyond {ital z=9.2} with B,V, and {ital R}-band Nearby Photometry

    E-Print Network [OSTI]

    Goodbar, Ariel

    2008-01-01

    Supernovae: Comparing R-band Photometry Beyond z = 0.2 withB, V, and R-band Nearby Photometry Alex Kim, Ariel Goobar,Supernovae: Comparing R-band Photometry Beyond z =0.2 with

  5. A Generalized {ital K} Correction for Type Ia Supernovae: Comparing {ital R}-band Photometry Beyond {ital z=9.2} with B,V, and {ital R}-band Nearby Photometry

    E-Print Network [OSTI]

    Goodbar, Ariel

    2008-01-01

    spectroscopically peculiar supernovae, and to search for anyK Correction for Type Ia Supernovae: Comparing R-bandK Correction for Type Ia Supernovae: Comparing R-band

  6. Depositional environment of Red Fork sandstones, deep Anadarko Basin, western Oklahoma 

    E-Print Network [OSTI]

    Whiting, Philip Howard

    1982-01-01

    of constructional channel-fill sandstones of the Red Fork, East Clinton Field. Location of cross section shown in Fig. 17. Datum level is an overlying highly conductive shale marker 51 19 Core analysis plot showing porosity, permeability, and fluid saturation...- ducers of oil and gas. Huch of the Red Fork production 'n this area has occurred while drilling for the deeper Morrow sandstones. The excellent natural gas productior. from the shallower Red Fork reservoirs has recently generated much interest...

  7. Measuring skewness of red blood cell deformability distribution by laser ektacytometry

    SciTech Connect (OSTI)

    Nikitin, S Yu; Priezzhev, A V; Lugovtsov, A E; Ustinov, V D

    2014-08-31

    An algorithm is proposed for measuring the parameters of red blood cell deformability distribution based on laser diffractometry of red blood cells in shear flow (ektacytometry). The algorithm is tested on specially prepared samples of rat blood. In these experiments we succeeded in measuring the mean deformability, deformability variance and skewness of red blood cell deformability distribution with errors of 10%, 15% and 35%, respectively. (laser biophotonics)

  8. Red-white and blue baby: a case of phacomatosis pigmentovascularis type V

    E-Print Network [OSTI]

    Byrom, Lisa; Surjana, Devita; Yoong, Corinne; Zappala, Tania

    2015-01-01

    vignette Red-white and blue baby: a case of phacomatosisextensive greyish-blue patches (dermal melanocytosis)addition, marble-like reddish- blue patches consistent with

  9. Possible common e,ological agent for strawberry disease and red mark syndrome in

    E-Print Network [OSTI]

    Kane, Andrew S.

    1 Possible common e,ological agent for strawberry disease and red mark Schering-Plough Animal Health, UK Possible common e,ological agent for strawberry

  10. Red wine but not ethanol at low doses can protect against the toxicity of methamphetamine

    E-Print Network [OSTI]

    Bondy, Stephen Bondy C

    2010-01-01

    Neuroprotective effect of resveratrol on 6-OHDA-inducedEl-Fazaâ, S. , 2007. Resveratrol, a red wine polyphenol,T. , Akaike, A. , 2007. Resveratrol protects dopaminergic

  11. Red wine but not ethanol at low doses can protect against the neurotoxicity of methamphetamine

    E-Print Network [OSTI]

    Bondy, SC; Ali, SF

    2010-01-01

    Neuroprotective effect of resveratrol on 6-OHDA-inducedEl-Fazaâ, S. , 2007. Resveratrol, a red wine polyphenol,T. , Akaike, A. , 2007. Resveratrol protects dopaminergic

  12. A Stellar Population Gradient in VII Zw 403 - Implications for the Formation of Blue Compact Dwarf Galaxies

    E-Print Network [OSTI]

    Regina E. Schulte-Ladbeck; Ulrich Hopp; Mary M. Crone; Laura Greggio

    1999-05-09

    We present evidence for the existence of an old stellar halo in the Blue Compact Dwarf galaxy VII Zw 403. VII Zw 403 is the first Blue Compact Dwarf galaxy for which a clear spatial segregation of the resolved stellar content into a "core-halo" structure is detected. Multicolor HST/WFPC2 observations indicate that active star formation occurs in the central region, but is strikingly absent at large radii. Instead, a globular-cluster-like red giant branch suggests the presence of an old (> 10 Gyr) and metal poor (=-1.92) stellar population in the halo. While the vast majority of Blue Compact Dwarf galaxies has been recognized to possess halos of red color in ground-based surface photometry, our observations of VII Zw 403 establish for the first time a direct correspondence between a red halo color and the presence of old, red giant stars. If the halos of Blue Compact Dwarf galaxies are all home to such ancient stellar populations, then the fossil record conflicts with delayed-formation scenarios for dwarfs.

  13. Fluctuations of red blood cell membranes: The role of cytoskeleton

    E-Print Network [OSTI]

    Wonjune Choi; Juyeon Yi; Yong Woon Kim

    2015-08-28

    We theoretically investigate the membrane fluctuations of red blood cells with focus laid on the role of the cytoskeleton, viewing the system as a membrane coupled to sparse spring network. This model is exactly solvable and enables us to examine the coupling strength dependence of the membrane undulation. We find that the coupling modifies the fluctuation spectrum at wavelengths longer than the mesh size of the network, while leaving the fluid-like behavior of the membrane intact at shorter wavelengths. The fluctuation spectra can be markedly different, depending on not only the relative amplitude of the bilayer bending energy with respect to the cytoskeleton deformation energy but also the bilayer-cytoskelton coupling strength.

  14. Increasing herbicide selectivity between rice and red rice 

    E-Print Network [OSTI]

    Koetz, Paul Howard

    1982-01-01

    27 Effects of CGA-43089 applied in a DMSO- ethanol solution on emergence (1. of check) of rice. . . . . 29 Effects of CGA-03089 in a DMSO-ethanol sol- ution on fresh weight (fo of check) of rice. . . 30 Effect of soil applied CGA-43089...) of rice and red rice. CGA-43089 ' LJ- b g/kg of seed Seed Condition 0. 0 0. 7 P. O 0. 0 0. 0-+ ETCH 0. 0 + ETCH 1. 5 1. 5 3. 0 3. 0 6. 0 6. 0 12. 0 12. 0 0. 0 HI HR HI HR HI HR HI HR HI HR HI HR 100 a 95 a 95 a 92 a 61 b 52 b 25 c...

  15. The Phoenix Deep Survey: Extremely Red Galaxies and Cluster Candidates

    E-Print Network [OSTI]

    Anthony G. Smith; Andrew M. Hopkins; Richard W. Hunstead; Samuel J. Schmidt; José Afonso; Antonis E. Georgakakis; Lawrence E. Cram; Bahram Mobasher; Mark Sullivan

    2008-04-24

    We present the results of a study of a sample of 375 Extremely Red Galaxies (ERGs) in the Phoenix Deep Survey, 273 of which constitute a subsample which is 80% complete to K_s = 18.5 over an area of 1160 arcmin^2. The angular correlation function for ERGs is estimated, and the association of ERGs with faint radio sources explored. We find tentative evidence that ERGs and faint radio sources are associated at z > 0.5. A new overdensity-mapping algorithm has been used to characterize the ERG distribution, and identify a number of cluster candidates, including a likely cluster containing ERGs at 0.5 4 criterion is more efficient than R - K_s > 5 at selecting dusty star-forming galaxies, rather than passively evolving ERGs.

  16. BIOCHIMICA ET BIOPHYSICA ACTA 213 ACTION OF HYDROXYLAMINE IN THE RED ALGA PORPHYRIDIUM

    E-Print Network [OSTI]

    Govindjee

    BIOCHIMICA ET BIOPHYSICA ACTA 213 BBA 46182 ACTION OF HYDROXYLAMINE IN THE RED ALGA PORPHYRIDIUM CR and fluorescence transient studies, made with the intact cells of red alga Porphyridium cruentum, suggest earlier with spinach chloroplasts and green alga Chlorella by other workers. Fluorescence transient data

  17. Occurrence and Behavior of Juvenile Red Snapper, Lutjanus campechanus, on Commercial Shrimp Fishing Grounds

    E-Print Network [OSTI]

    snappers rose above the trawl footrope andfell back into the trawl. These observations have directed to reduce red snapper fishing mor tality rates are now in progress (GMFMC, 1981,1989,1991,1992). In 1993, the Gulf of Mexico Fishery Management Council implemented measures to protect the red snapper by setting

  18. Red Hat Enterprise Linux 3 The Next Generation Of Enterprise Class Linux

    E-Print Network [OSTI]

    Source Community Code Base Fedora Project - Various Architectures Availablevia http development of new releases e 12-18 month release cycle e 5-year support life cycle e Targeted 6-month Alpha Key Changes to Red Hat Linux ¡ Red Hat Linux products are going end-of-life (EOL) ¡ EOL = no bug fix

  19. INTRODUCTION Red wood ants play an important role in the ecology of

    E-Print Network [OSTI]

    Thomas, Len

    INTRODUCTION Red wood ants play an important role in the ecology of woodland ecosystems by virtue the ecological impor- tance of red wood ants (Gösswald, 1989) and the conser- vation concern for some species.borkin@clear.net.nz 2 Royal Society for the Protection of Birds, Etive House, Beechwood Park, Inverness, IV2 3BW, UK; e

  20. Kit for the selective labeling of red blood cells in whole blood with [sup 99]Tc

    DOE Patents [OSTI]

    Srivastava, S.C.; Babich, J.W.; Straub, R.; Richards, P.

    1992-05-26

    Disclosed herein are a method and kit for the preparation of [sup 99m]Tc labeled red blood cells using whole blood in a closed sterile system containing stannous tin in a form such that it will enter the red blood cells and be available therein for reduction of technetium. No Drawings

  1. Red Mountain is one of several hundred cinder cones within a swath of volcanic

    E-Print Network [OSTI]

    Red Mountain is one of several hundred cinder cones within a swath of volcanic landscape Mountain, whose tallest peak is 12,633 feet above sea level, the highest ele- vation in Arizona. Red Mountain rises about 1,000 feet above the surrounding landscape, and its crest is at 7,965 feet elevation

  2. BD Living ColorsTM DsRed-Monomer Fluorescent Protein

    E-Print Network [OSTI]

    Lebendiker, Mario

    protein · Ideal for fusion tag applications · Validated with a wide variety of fusion proteins · Perfect rapidly and is readily detected in 12 hours. The use of DsRed-Monomer as a fusion tag has been validated has been confirmed by several independent methods. When recombinant DsRed-Monomer is analyzed by FPLC

  3. Constraints on origin and evolution of Red Sea brines from helium and argon isotopes

    E-Print Network [OSTI]

    Aeschbach-Hertig, Werner

    mantle production ratio. In the Kebrit Deep, located in the northern Red Sea, we found a helium excessConstraints on origin and evolution of Red Sea brines from helium and argon isotopes Gisela, the Discovery and the Kebrit Deep, were sampled and analyzed for helium and argon isotopes. We identified two

  4. Accretion Rates of Red Quasars from the Hydrogen P$\\beta$ line

    E-Print Network [OSTI]

    Kim, Dohyeong; Glikman, Eilat; Woo, Jong-Hak; Urrutia, Tanya

    2015-01-01

    Red quasars are thought to be an intermediate population between merger-driven star-forming galaxies in dust-enshrouded phase and normal quasars. If so, they are expected to have high accretion ratios, but their intrinsic dust extinction hampers reliable determination of Eddington ratios. Here, we compare the accretion rates of 16 red quasars at $z \\sim 0.7$ to those of normal type 1 quasars at the same redshift range. The red quasars are selected by their red colors in optical through near-infrared (NIR) and radio detection. The accretion rates of the red quasars are derived from the P$\\beta$ line in NIR spectra, which is obtained by the SpeX on the Infrared Telescope Facility (IRTF) in order to avoid the effects of dust extinction. We find that the measured Eddington ratios ($L_{\\rm bol}$/$L_{\\rm Edd} \\simeq 0.69$) of red quasars are significantly higher than those of normal type 1 quasars, which is consistent with a scenario in which red quasars are the intermediate population and the black holes of red qu...

  5. Euler buckling-induced folding and rotation of red blood cells in an optical trap

    E-Print Network [OSTI]

    Sharma, Shobhona

    Euler buckling-induced folding and rotation of red blood cells in an optical trap A Ghosha 005, India Abstract. We investigate the physics of an optically-driven micromotor of biological origin. When a single, live red blood cell is placed in an optical trap, the normal biconcave disk shape

  6. Direct dating of left-lateral deformation along the Red River shear zone, China and Vietnam

    E-Print Network [OSTI]

    Direct dating of left-lateral deformation along the Red River shear zone, China and Vietnam Lisa D-lateral shearing. Data from the southern RRSZ within Vietnam are complicated by Tertiary overprinting of rocks dating of left-lateral deformation along the Red River shear zone, China and Vietnam, J. Geophys. Res

  7. Regulation of Thyrotropin mRNA Expression in Red Drum, Sciaenops ocellatus 

    E-Print Network [OSTI]

    Jones, Richard Alan

    2012-10-19

    , circulates with a robust daily rhythm in the sciaenid fish, red drum. Previous research has suggested that the red drum T? cycle is circadian in nature, driven by TSH secretion in the early photophase and inhibited by T? feedback in the early scotophase...

  8. Biological Activity of Thyrotropin in Two Teleost Fish, Red Drum (Sciaenops ocellatus) and Goldfish (Carassius auratus) 

    E-Print Network [OSTI]

    Miller, Thomas Charles

    2012-07-16

    of purified TSH suitable for biological testing and immunoassay development. I developed a red drum in vivo bioassay to aid in the production and purification of recombinant TSH from the red drum, a perciform fish demonstrating dynamic daily thyroxine (T4...

  9. ORIGINAL PAPER Sex ratio varies with egg investment in the red-necked

    E-Print Network [OSTI]

    ORIGINAL PAPER Sex ratio varies with egg investment in the red-necked phalarope (Phalaropus lobatus Abstract Fisher's sex ratio theory predicts that on average parents should allocate resources equally of the sex with greater variation in fitness. We tested theoretical predictions in the red-necked phalarope

  10. Let's Paint the Town Red for a Few Hours: Composition of Aspect in Idioms

    E-Print Network [OSTI]

    Glasbey, Sheila

    Let's Paint the Town Red for a Few Hours: Composition of Aspect in Idioms Sheila R. Glasbey School of idioms Consider the idiomatic verb phrase `paint the town red' (meaning, according to the Longman Diction readily with temporal for-adverbials to form sentences such as: 1. Mary and her friends painted the town

  11. DESERT PAVEMENTS AND SOILS ON BASALTIC PYROCLASTIC DEPOSITS AT LATHROP WELLS AND RED CONE VOLCANOES, SOUTHERN NEVADA

    SciTech Connect (OSTI)

    G.A. Valentine; C.D. Harrington

    2005-08-10

    Formation of desert pavement and accretionary soils are intimately linked in arid environments such as the Mojave Desert. Well-sorted fallout scoria lapilli at Lathrop Wells (75-80 ky) and Red Cone ({approx}1 Ma) volcanoes (southern Nevada) formed an excellent starting material for pavement, allowing infiltration of eolian silt and fine sand that first clogs the pore space of underlying tephra and then aggrades and develops vesicular A (Av) horizons. Variations in original pyroclast sizes provide insight into minimum and maximum clast sizes that promote pavement and soil formation: pavement becomes ineffective when clasts can saltate under the strongest winds, while clasts larger than coarse lapilli are unable to form an interlocking pavement that promotes silt accumulation (necessary for Av development). Contrary to predictions that all pavements above altitudes of {approx}400 m would have been ''reset'' in their development after late Pleistocene vegetation advances (about 15 ka), the soils and pavements show clear differences in maturity between the two volcanoes. This indicates that either the pavement soils develop slowly over many 10,000's of years and then are very stable, or that, if they are disrupted by vegetation advances, subsequent pavements are reestablished with successively more mature characteristics.

  12. Evaluation of Whole and Lipid-Extracted Algae Meals (LEA) in the Diet of Juvenile Red Drum (Sciaenops ocellatus) and Digestibility of LEA by Red Drum and Hybrid Striped Bass (Morone chrysops x Morone saxatilis) 

    E-Print Network [OSTI]

    Patterson, Donovan Aaron

    2013-04-02

    algal meals as partial replacements for fishmeal and soy protein concentrate in diets for juvenile red drum (Sciaenops ocellatus). Apparent digestibility coefficients (ADCs) for CP and energy in various LEAs also were determined with red drum and hybrid...

  13. Some Constraints On the Effects of Age and Metallicity on the Low Mass X-ray Binary Formation Rate

    E-Print Network [OSTI]

    Arunav Kundu; Thomas J. Maccarone; Stephen E. Zepf; Thomas H. Puzia

    2003-04-24

    We have studied the low mass X-ray binary (LMXB) populations within and outside globular clusters (GC) in NGC 4365 and NGC 3115. Using published age and metallicity constraints from optical and IR observations of their GCs, we do not find any evidence for an increase in the LMXB formation rate in the intermediate age cluster population of NGC 4365, as has been proposed in some scenarios of dynamical LMXB formation in GCs. The old, metal-rich, red population of GCs in NGC 3115 on the other hand is {\\it at least} three times as efficient at creating LMXBs as the old, metal-poor, blue clusters. These data suggest that the higher formation efficiency of LMXBs in the red GC subsystems of many galaxies is largely a consequence of their higher metallicity. A comparison of the densities of field LMXBs in different galaxies does not reveal an obvious correlation with the age of the field stars as predicted by models in which the LMXB formation rate in the field drops monotonically with time after an initial burst. This suggests that either a significant fraction of the field LMXBs are created in GCs and subsequently injected into the field, or the LMXB formation rate has a more complex time evolution pattern.

  14. Post-fire recovery and successional dynamics of an old growth red spruce forest in the southern Appalachian Mountains 

    E-Print Network [OSTI]

    Krustchinsky, Adam R.

    2009-05-15

    of fire in a mesic ecosystem, specifically a high-elevation red spruce (Picea rubens Sarg.) forest on Whitetop Mountain in the southern Appalachian Mountains. Six plots were established in a high elevation red spruce stand to characterize the stand...

  15. A New Spin on the Optimization of Plant-Protein-Based Diets for Red Drum, Sciaenops ocellatus L. 

    E-Print Network [OSTI]

    Rossi Junior, Waldemar

    2015-07-17

    Red drum, Sciaenops ocellatus, is a highly prized marine teleost whose supply largely depends on aquaculture. Commercial diets for red drum still contain considerable amounts of fishmeal (FM), which has become a scarce and increasingly costly...

  16. Vitality and chemistry of roots of red spruce in forest floors of stands with a gradient of soil

    E-Print Network [OSTI]

    David, Mark B.

    Vitality and chemistry of roots of red spruce in forest floors of stands with a gradient of soil Al) dominated by red spruce and with a gradient of forest floor exchangeable Al/Ca ratios. Root vitality

  17. Spatial Heterogeneity and Imperfect Mixing in Chemical Reactions: Visualization of Density-Driven Pattern Formation

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

    Sobel, Sabrina G.; Hastings, Harold M.; Testa, Matthew

    2009-01-01

    Imperfect mixing is a concern in industrial processes, everyday processes (mixing paint, bread machines), and in understanding salt water-fresh water mixing in ecosystems. The effects of imperfect mixing become evident in the unstirred ferroin-catalyzed Belousov-Zhabotinsky reaction, the prototype for chemical pattern formation. Over time, waves of oxidation (high ferriin concentration, blue) propagate into a background of low ferriin concentration (red); their structure reflects in part the history of mixing in the reaction vessel. However, it may be difficult to separate mixing effects from reaction effects. We describe a simpler model system for visualizing density-driven pattern formation in an essentiallymore »unmixed chemical system: the reaction of pale yellow Fe 3 + with colorless SCN ? to form the blood-red Fe ( SCN ) 2 + complex ion in aqueous solution. Careful addition of one drop of Fe ( NO 3 ) 3 to KSCN yields striped patterns after several minutes. The patterns appear reminiscent of Rayleigh-Taylor instabilities and convection rolls, arguing that pattern formation is caused by density-driven mixing. « less

  18. Treating tar sands formations with karsted zones

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-09

    Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

  19. ARM: Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, high-sun angles [a0 data is uncalibrated

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Albert Mendoza; Yan Shi; Connor Flynn

    Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, high-sun angles [a0 data is uncalibrated

  20. ARM: Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, low-sun angles [a0 data is uncalibrated

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Albert Mendoza; Yan Shi; Connor Flynn

    Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, low-sun angles [a0 data is uncalibrated

  1. ARM: Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, low-sun angles [a0 data is uncalibrated

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Albert Mendoza; Yan Shi; Connor Flynn

    1990-01-01

    Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, low-sun angles [a0 data is uncalibrated

  2. ARM: Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, high-sun angles [a0 data is uncalibrated

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Albert Mendoza; Yan Shi; Connor Flynn

    2011-03-22

    Shortwave Array Spectroradiometer-Hemispheric, Near-InfraRed channel, high-sun angles [a0 data is uncalibrated

  3. JURO Application Editing Sample Please edit the following passage for style and content. Make edits in red or blue ink.

    E-Print Network [OSTI]

    Arnold, Jonathan

    in red or blue ink. American citizens eat unhealthily all the time. America increasing rely on foreign

  4. Use-driven concept formation

    E-Print Network [OSTI]

    Roberts, Jennifer M. (Jennifer Marie)

    2010-01-01

    When faced with a complex task, humans often identify domain-specific concepts that make the task more tractable. In this thesis, I investigate the formation of domain-specific concepts of this sort. I propose a set of ...

  5. Brown dwarf formation Gilles Chabrier

    E-Print Network [OSTI]

    Joergens, Viki

    : not observed ! Constraints on BD formation/ejection by disk instability: magnetic field No B (pure hydro accretion - Collapse of a cloud -> starts forming small N-body clusters of small (~10-3 Msol

  6. Cross Domain Mathematical Concept Formation 

    E-Print Network [OSTI]

    Steel, Graham; Colton, Simon; Bundy, Alan; Walsh, Toby

    2000-01-01

    Many interesting concepts in mathematics are essentially "cross-domain" in nature, relating objects from more than one area of mathematics, e.g. prime order groups. These concepts are often vital to the formation of a ...

  7. RED CLUMP STARS IN THE SAGITTARIUS TIDAL STREAMS

    SciTech Connect (OSTI)

    Carrell, Kenneth; Chen Yuqin; Wilhelm, Ronald

    2012-07-15

    We have probed a section (l {approx} 150, b {approx} -60) of the trailing tidal arm of the Sagittarius dwarf spheroidal galaxy by identifying a sample of Red Clump (RC) stream stars. RC stars are not generally found in the halo field, but are found in significant numbers in both the Sagittarius galaxy and its tidal streams, making them excellent probes of stream characteristics. Our target sample was selected using photometric data from the Sloan Digital Sky Survey, Data Release 6, which was constrained in color to match the Sagittarius RC stars. Spectroscopic observations of the target stars were conducted at Kitt Peak National Observatory using the WIYN telescope. The resulting spectroscopic sample is magnitude limited and contains both main-sequence disk stars and evolved RC stars. We have developed a method to systematically separate these two stellar classes using kinematic information and a Bayesian approach for surface gravity determination. The resulting RC sample allows us to determine an absolute stellar density of {rho} = 2.7 {+-} 0.5 RC stars kpc{sup -3} at this location in the stream. Future measurements of stellar densities for a variety of populations and at various locations along the streams will lead to a much improved understanding of the original nature of the Sagittarius galaxy and the physical processes controlling its disruption and subsequent stream generation.

  8. DRAMATIC CHANGE IN JUPITER'S GREAT RED SPOT FROM SPACECRAFT OBSERVATIONS

    SciTech Connect (OSTI)

    Simon, Amy A.; Wong, Michael H.; De Pater, Imke; Rogers, John H.; Orton, Glenn S.; Carlson, Robert W.; Asay-Davis, Xylar; Marcus, Philip S.

    2014-12-20

    Jupiter's Great Red Spot (GRS) is one of its most distinct and enduring features. Since the advent of modern telescopes, keen observers have noted its appearance and documented a change in shape from very oblong to oval, confirmed in measurements from spacecraft data. It currently spans the smallest latitude and longitude size ever recorded. Here we show that this change has been accompanied by an increase in cloud/haze reflectance as sensed in methane gas absorption bands, increased absorption at wavelengths shorter than 500 nm, and increased spectral slope between 500 and 630 nm. These changes occurred between 2012 and 2014, without a significant change in internal tangential wind speeds; the decreased size results in a 3.2 day horizontal cloud circulation period, shorter than previously observed. As the GRS has narrowed in latitude, it interacts less with the jets flanking its north and south edges, perhaps allowing for less cloud mixing and longer UV irradiation of cloud and aerosol particles. Given its long life and observational record, we expect that future modeling of the GRS's changes, in concert with laboratory flow experiments, will drive our understanding of vortex evolution and stability in a confined flow field crucial for comparison with other planetary atmospheres.

  9. Spectroscopic Study on the Beryllium Abundances of Red Giant Stars

    E-Print Network [OSTI]

    Takeda, Yoichi

    2014-01-01

    An extensive spectroscopic study was carried out for the beryllium abundances of 200 red giants (mostly of late G and early K type), which were determined from the near-UV Be II 3131.066 line based on high-dispersion spectra obtained by Subaru/HDS, with an aim of investigating the nature of surface Be contents in these evolved giants; e.g., dependence upon stellar parameters, degree of peculiarity along with its origin and build-up timing. We found that Be is considerably deficient (to widely different degree from star to star) in the photosphere of these evolved giants by ~1-3 dex (or more) compared to the initial abundance. While the resulting Be abundances (A(Be)) appear to weakly depend upon T_eff, log g, [Fe/H], M, age, and v_sin i, this may be attributed to the metallicity dependence of A(Be) coupled with the mutual correlation between these stellar parameters, since such tendencies almost disappear in the metallicity-scaled Be abundance ([Be/Fe]). By comparing the Be abundances (as well as their correl...

  10. The Photophysics of the Carrier of Extended Red Emission

    E-Print Network [OSTI]

    Tracy L. Smith; Adolf N. Witt

    2001-09-26

    Interstellar dust contains a component which reveals its presence by emitting a broad, unstructured band of light in the 540 to 950 nm wavelength range, referred to as Extended Red Emission (ERE). The presence of interstellar dust and ultraviolet photons are two necessary conditions for ERE to occur. This is the basis for suggestions which attribute ERE to an interstellar dust component capable of photoluminescence. In this study, we have collected all published ERE observations with absolute-calibrated spectra for interstellar environments, where the density of ultraviolet photons can be estimated reliably. In each case, we determined the band-integrated ERE intensity, the wavelength of peak emission in the ERE band, and the efficiency with which absorbed ultraviolet photons are contributing to the ERE. The data show that radiation is not only driving the ERE, as expected for a photoluminescence process, but is modifying the ERE carrier as manifested by a systematic increase in the ERE band's peak wavelength and a general decrease in the photon conversion efficiency with increasing densities of the prevailing exciting radiation. The overall spectral characteristics of the ERE and the observed high quantum efficiency of the ERE process are currently best matched by the recently proposed silicon nanoparticle (SNP) model. Using the experimentally established fact that ionization of semiconductor nanoparticles quenches their photoluminescence, we proceeded to test the SNP model by developing a quantitative model for the excitation and ionization equilibrium of SNPs under interstellar conditions for a wide range of radiation field densities.

  11. The red rain phenomenon of Kerala and its possible extraterrestrial origin

    E-Print Network [OSTI]

    Godfrey Louis; A. Santhosh Kumar

    2006-01-02

    A red rain phenomenon occurred in Kerala, India starting from 25th July 2001, in which the rainwater appeared coloured in various localized places that are spread over a few hundred kilometers in Kerala. Maximum cases were reported during the first 10 days and isolated cases were found to occur for about 2 months. The striking red colouration of the rainwater was found to be due to the suspension of microscopic red particles having the appearance of biological cells. These particles have no similarity with usual desert dust. An estimated minimum quantity of 50,000 kg of red particles has fallen from the sky through red rain. An analysis of this strange phenomenon further shows that the conventional atmospheric transport processes like dust storms etc. cannot explain this phenomenon. The electron microscopic study of the red particles shows fine cell structure indicating their biological cell like nature. EDAX analysis shows that the major elements present in these cell like particles are carbon and oxygen. Strangely, a test for DNA using Ethidium Bromide dye fluorescence technique indicates absence of DNA in these cells. In the context of a suspected link between a meteor airburst event and the red rain, the possibility for the extraterrestrial origin of these particles from cometary fragments is discussed.

  12. Behavior of Aluminum, Arsenic, and Vanadium during the Neutralization of Red Mud Leachate by HCl, Gypsum, or Seawater

    E-Print Network [OSTI]

    Burke, Ian

    Behavior of Aluminum, Arsenic, and Vanadium during the Neutralization of Red Mud Leachate by HCl ABSTRACT: Red mud leachate (pH 13) collected from Ajka, Hungary is neutralized to via surface adsorption of As onto the Al oxyhydroxides. Gypsum addition to red mud leachate results

  13. SW New Mexico Oil Well Formation Tops

    SciTech Connect (OSTI)

    Shari Kelley

    2015-10-21

    Rock formation top picks from oil wells from southwestern New Mexico from scout cards and other sources. There are differing formation tops interpretations for some wells, so for those wells duplicate formation top data are presented in this file.

  14. Organic Tandem Solar Cells: Design and Formation

    E-Print Network [OSTI]

    Chen, Chun-Chao

    2015-01-01

    Angeles Organic Tandem Solar Cells: Design and Formation AOrganic Tandem Solar Cells: Design and Formation by Chun-multi-junction tandem solar-cell design. Given this design,

  15. REGULATORY COOPERATION COUNCIL - WORK PLANNING FORMAT: Natural...

    Energy Savers [EERE]

    FORMAT: Natural Gas Use in Transportation REGULATORY COOPERATION COUNCIL - WORK PLANNING FORMAT: Natural Gas Use in Transportation RCC Workplan NGV.PDF More Documents &...

  16. THE FORMATION OF IRIS DIAGNOSTICS. II. THE FORMATION OF THE Mg II h and k LINES IN THE SOLAR ATMOSPHERE

    SciTech Connect (OSTI)

    Leenaarts, J.; Pereira, T. M. D.; Carlsson, M.; De Pontieu, B. [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, NO-0315 Oslo (Norway); Uitenbroek, H., E-mail: jorritl@astro.uio.no, E-mail: tiago.pereira@astro.uio.no, E-mail: mats.carlsson@astro.uio.no, E-mail: bdp@lmsal.com, E-mail: huitenbroek@nso.edu [NSO/Sacramento Peak P.O. Box 62 Sunspot, NM 88349-0062 (United States)

    2013-08-01

    NASA's Interface Region Imaging Spectrograph (IRIS) small explorer mission will study how the solar atmosphere is energized. IRIS contains an imaging spectrograph that covers the Mg II h and k lines as well as a slit-jaw imager centered at Mg II k. Understanding the observations requires forward modeling of Mg II h and k line formation from three-dimensional (3D) radiation-magnetohydrodynamic (RMHD) models. This paper is the second in a series where we undertake this modeling. We compute the vertically emergent h and k intensity from a snapshot of a dynamic 3D RMHD model of the solar atmosphere, and investigate which diagnostic information about the atmosphere is contained in the synthetic line profiles. We find that the Doppler shift of the central line depression correlates strongly with the vertical velocity at optical depth unity, which is typically located less than 200 km below the transition region (TR). By combining the Doppler shifts of the h and k lines we can retrieve the sign of the velocity gradient just below the TR. The intensity in the central line depression is anti-correlated with the formation height, especially in subfields of a few square Mm. This intensity could thus be used to measure the spatial variation of the height of the TR. The intensity in the line-core emission peaks correlates with the temperature at its formation height, especially for strong emission peaks. The peaks can thus be exploited as a temperature diagnostic. The wavelength difference between the blue and red peaks provides a diagnostic of the velocity gradients in the upper chromosphere. The intensity ratio of the blue and red peaks correlates strongly with the average velocity in the upper chromosphere. We conclude that the Mg II h and k lines are excellent probes of the very upper chromosphere just below the TR, a height regime that is impossible to probe with other spectral lines. They also provide decent temperature and velocity diagnostics of the middle chromosphere.

  17. Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas

    DOE Patents [OSTI]

    Bitensky, M.W.; Yoshida, Tatsuro

    1997-04-29

    A method is disclosed using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4 C storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4 C for prolonged periods of time is achieved by removing oxygen from the red blood cells at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate. 4 figs.

  18. The relevance of red blood cell deformability in the pathophysiology of blood disorders

    E-Print Network [OSTI]

    Huang, Sha, Ph. D. Massachusetts Institute of Technology

    2014-01-01

    Red blood cells (RBCs) play a crucial role in delivering oxygen to the body tissues. During the 120 days of their lifespan, average RBCs would circulate for approximately 500,000 times and undergo repeated deformations in ...

  19. The Agricultural Benefits of Salinity Control on the Red River of Texas and Oklahoma 

    E-Print Network [OSTI]

    Laughlin, D. H.; Lacewell, R. D.; Moore, D. S.

    1980-01-01

    Salinity of the waters from the Red River and its major tributaries has virtually eliminated its use for irrigation of agricultural crops in Texas and Oklahoma. A chloride control project has been proposed whereby the source salt waters...

  20. Evaluation of glufosinate for the control of red rice (Oryza sativa) in commercial rice (Oryza sativa) 

    E-Print Network [OSTI]

    Hessler, Melanie Dawn

    1999-01-01

    Research was conducted in 1996 and 1997 to 1) evaluate weed management systems in transferrin 'Gulfmont' rice with glufosinate, 2) evaluate the tolerance of selected red rice ecotypes to glufosinate at different application ...

  1. The Red Storm Architecture and Early Experiences With Multi-Core...

    Office of Scientific and Technical Information (OSTI)

    With Multi-Core Processors Citation Details In-Document Search Title: The Red Storm Architecture and Early Experiences With Multi-Core Processors Authors: Tomkins, James L 1 ;...

  2. Dynamic behavior of healthy and malaria infected human red blood cells

    E-Print Network [OSTI]

    Quinn, David John, Sc. D. Massachusetts Institute of Technology

    2010-01-01

    Hereditary hematological disorders and foreign organisms often introduce changes to the spectrin molecular network and membrane of human red blood cells (RBCs). These structural changes lead to altered cell shape, ...

  3. The story of a public space project : La Red de Alamedas de Bogotá

    E-Print Network [OSTI]

    Angel Samper, Marcela, 1958-

    2002-01-01

    La Red de Alamedas de Bogota is a new type of public space project consisting in a network of tree lined pedestrian streets with bicycle paths. Alamedas connect parks and natural systems as well as residential areas and ...

  4. Antioxidant Effects of Phytochemicals in Texas Red Wine in Breast Cancer Cells 

    E-Print Network [OSTI]

    Hagood, Alexandra

    2013-02-26

    of the earliest medicines including aspirin, morphine, quinine, digitoxin and pilocarpine were derived from plants (16, 17). Much research has been conducted in the isolation of phytochemicals from grapes and red and white wine and to determine...

  5. Phosphorus Cycling in the Red Tide Incubator Region of Monterey Bay in Response to Upwelling

    E-Print Network [OSTI]

    Mackey, Katherine R. M; Mioni, Cecile E; Ryan, John P; Paytan, Adina

    2012-01-01

    of C. balechii from the RTI region of Monterey Bay differsThe red tide incubator (RTI) is a persistent feature ofspecies that incubate in the RTI may cause harmful effects

  6. The Red Squirrel (Sciurus vulgaris L.) in relation to its food resource 

    E-Print Network [OSTI]

    Tittensor, Andrew M

    1. A study of the ecology of the native red squirrel (Sciurus vulgaris leucorus) was carried out in a mature Scots pine (Pinus sylvestris) plantation in East Scotland. 2. The aims of this study were:- 1)To determine the ...

  7. Pathophysiology and transmission of Thelohania solenopsae in the red imported fire ants, Solenopsis invicta 

    E-Print Network [OSTI]

    Chen, Johnny Shou-Chung

    2005-11-01

    Thelohania solenopsae are intracellular pathogens found in the red imported fire ant, Solenopsis invicta. These pathogens cause detrimental effects to their fire ant hosts. The present study revealed that the midgut and the meconium materials from...

  8. Particle Size and Bait Preference of the Red Imported Fire Ant, Solenopsis invicta Buren (Hymenoptera: Formicidae) 

    E-Print Network [OSTI]

    Neff, Richard R.

    2011-10-21

    One of the most popular methods for achieving control of the Red Imported Fire Ant, Solenopsis invicta Buren, is through the use of broadcast baits. Several factors contribute to bait efficacy, one of which may be particle size. The goals...

  9. Venting and Rapid Recompression Increase Survival and Improve Recovery for Red Snapper with Barotrauma 

    E-Print Network [OSTI]

    Drumhiller, Karen L

    2012-12-01

    was to evaluate the efficacy of two techniques designed to minimize barotrauma-related mortality: venting and rapid recompression. In laboratory experiments using hyperbaric chambers, I assessed sublethal effects of barotrauma and subsequent survival rates of red...

  10. Effects of lysine nutrition on production characteristics and ammonia excretion of red drum Sciaenops ocellatus 

    E-Print Network [OSTI]

    Webb, Kenneth Ashley

    2002-01-01

    The red drum (Sciaenops ocellatus) has traditionally been an important commercial and recreational fish species in the Gulf of Mexico; therefore, its aquacultural production for food and for stock enhancement continues to develop. The minimum...

  11. Determination of digestibility coefficients of various feedstuffs for red drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Gaylord, Thomas Gibson

    1995-01-01

    The availability of nutrients and energy in feedstuffs for fish may vary considerably, depending on a variety of factors including fish species, ingredient quality and processing conditions. The red drum is an emerging aquaculture species for which...

  12. Contrasting survival strategies of hatchery and wild red drum: implications for stock enhancement 

    E-Print Network [OSTI]

    Beck, Jessica Louise

    2009-05-15

    Post-release survival of hatchery fishes is imperative to the success of any supplemental stocking program. The purpose of this research was to identify differences between hatchery and wild red drum (Sciaenops ocellatus) and determine if pre...

  13. Development of Digital Techniques for Analysis of Hormone Regulation of Melanophore Activity in Red Drum 

    E-Print Network [OSTI]

    Russey, William Andrew

    2008-08-19

    results, and reduce subjectivity in procedures to more accurately analyze hormone interaction. To accomplish this, digital cameras were used to photograph scales of red drum (Sciaenops ocellatus), which were then analyzed using ImageJ software...

  14. Characteristics of warm season precipitating storms in the Arkansas–Red River basin

    E-Print Network [OSTI]

    Tucker, Donna F.; Li, Xingong

    2009-07-16

    [1] Analysis of a multisensor precipitation product enables us to extract the precipitation from individual storms in the Arkansas–Red River drainage basin over a period of 11 years. We examine the year-to-year and ...

  15. Formation of porous gas hydrates

    E-Print Network [OSTI]

    Salamatin, Andrey N

    2015-01-01

    Gas hydrates grown at gas-ice interfaces are examined by electron microscopy and found to have a submicron porous texture. Permeability of the intervening hydrate layers provides the connection between the two counterparts (gas and water molecules) of the clathration reaction and makes further hydrate formation possible. The study is focused on phenomenological description of principal stages and rate-limiting processes that control the kinetics of the porous gas hydrate crystal growth from ice powders. Although the detailed physical mechanisms involved in the porous hydrate formation still are not fully understood, the initial stage of hydrate film spreading over the ice surface should be distinguished from the subsequent stage which is presumably limited by the clathration reaction at the ice-hydrate interface and develops after the ice grain coating is finished. The model reveals a time dependence of the reaction degree essentially different from that when the rate-limiting step of the hydrate formation at...

  16. A simplified model for red cell dynamics in small blood vessels

    E-Print Network [OSTI]

    Piero Olla

    1998-11-20

    A simple mechanism for the confinement of red cells in the middle of narrow blood vessels is proposed. In the presence of a quadratic shear, red cells deform in such a way to loose fore-aft symmetry and to achieve a fixed orientation with respect to the flow. This leads to a drift away from the vessel walls, when the vessel diameter goes below a critical value depending on the viscoelastic properties and the dimensions of the cell.

  17. The feeding biomechanics of juvenile red snapper (Lutjanus campechanus) from the northwestern Gulf of Mexico 

    E-Print Network [OSTI]

    Case, Janelle Elaine

    2009-05-15

    BIOMECHANICS OF JUVENILE RED SNAPPER (LUTJANUS CAMPECHANUS) FROM THE NORTHWESTERN GULF OF MEXICO A Thesis by JANELLE ELAINE CASE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 2007 Major Subject: Wildlife and Fisheries Sciences THE FEEDING BIOMECHANICS OF JUVENILE RED SNAPPER (LUTJANUS CAMPECHANUS) FROM THE NORTHWESTERN GULF OF MEXICO A Thesis...

  18. Interaction of temperature, dissolved oxygen and feed energy on ecophysiological performance of juvenile red drum 

    E-Print Network [OSTI]

    Fontaine, Lance Pierre

    2008-10-10

    on a per-minute basis; the data shown here have been filtered to show hourly readings only .................... 20 3.1 Growth rate (%/day) and marginal metabolic scope (MMS; L·g-1·h-1) for red drum consuming either a low energy diet (LE... OXYGEN AND FEED ENERGY ON ECOPHYSIOLOGICAL PERFORMANCE OF JUVENILE RED DRUM A Dissertation by LANCE PIERRE FONTAINE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  19. Where the Blue Stragglers Roam: Searching for a Link Between Formation and Environment

    E-Print Network [OSTI]

    Nathan Leigh; Alison Sills; Christian Knigge

    2008-08-15

    The formation of blue stragglers is still not completely understood, particularly the relationship between formation environment and mechanism. We use a large, homogeneous sample of blue stragglers in the cores of 57 globular clusters to investigate the relationships between blue straggler populations and their environments. We use a consistent definition of "blue straggler" based on position in the color-magnitude diagram, and normalize the population relative to the number of red giant branch stars in the core. We find that the previously determined anti-correlation between blue straggler frequency and total cluster mass is present in the purely core population. We find some weak correlations with central velocity dispersion and with half-mass relaxation time. The blue straggler frequency does not show any trend with any other cluster parameter. Even though collisions may be expected to be a dominant blue straggler formation process in globular cluster cores, we find no correlation between the frequency of blue stragglers and the collision rate in the core. We also investigated the blue straggler luminosity function shape, and found no relationship between any cluster parameter and the distribution of blue stragglers in the color-magnitude diagram. Our results are inconsistent with some recent models of blue straggler formation that include collisional formation mechanisms, and may suggest that almost all observed blue stragglers are formed in binary systems.

  20. The red rain phenomenon of Kerala and its possible extraterrestrial origin

    E-Print Network [OSTI]

    Louis, G; Louis, Godfrey

    2006-01-01

    A red rain phenomenon occurred in Kerala, India starting from 25th July 2001, in which the rainwater appeared coloured in various localized places that are spread over a few hundred kilometers in Kerala. Maximum cases were reported during the first 10 days and isolated cases were found to occur for about 2 months. The striking red colouration of the rainwater was found to be due to the suspension of microscopic red particles having the appearance of biological cells. These particles have no similarity with usual desert dust. An estimated minimum quantity of 50,000 kg of red particles has fallen from the sky through red rain. An analysis of this strange phenomenon further shows that the conventional atmospheric transport processes like dust storms etc. cannot explain this phenomenon. The electron microscopic study of the red particles shows fine cell structure indicating their biological cell like nature. EDAX analysis shows that the major elements present in these cell like particles are carbon and oxygen. St...

  1. FED, the Font "EDitor" and Font Formats

    E-Print Network [OSTI]

    Cohen, Joseph D.

    This memo describes FED, a program used for compiling and inspecting fonts: AST font format, a text format which can be used to create and edit fonts: and KST font format, the binary format used by SCRIMP, TJ6, and PUB.

  2. Method of fracturing a geological formation

    DOE Patents [OSTI]

    Johnson, James O. (2679-B Walnut, Los Alamos, NM 87544)

    1990-01-01

    An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.

  3. SUPERNOVA 2008bk AND ITS RED SUPERGIANT PROGENITOR

    SciTech Connect (OSTI)

    Van Dyk, Schuyler D.; Elias-Rosa, Nancy [Spitzer Science Center/Caltech, Mailcode 220-6, Pasadena, CA 91125 (United States); Davidge, Tim J., E-mail: vandyk@ipac.caltech.edu, E-mail: tim.davidge@nrc.ca [Herzberg Institute of Astrophysics, National Research Council of Canada, Victoria, B.C., V9E 2E7 (Canada); and others

    2012-01-15

    We have obtained limited photometric and spectroscopic data for supernova (SN) 2008bk in NGC 7793, primarily at {approx}> 150 days after explosion. We find that it is a Type II-Plateau (II-P) SN that most closely resembles the low-luminosity SN 1999br in NGC 4900. Given the overall similarity between the observed light curves and colors of SNe 2008bk and 1999br, we infer that the total visual extinction to SN 2008bk (A{sub V} = 0.065 mag) must be almost entirely due to the Galactic foreground, similar to what has been assumed for SN 1999br. We confirm the identification of the putative red supergiant (RSG) progenitor star of the SN in high-quality g'r'i' images we had obtained in 2007 at the Gemini-South 8 m telescope. Little ambiguity exists in this progenitor identification, qualifying it as the best example to date, next to the identification of the star Sk -69 Degree-Sign 202 as the progenitor of SN 1987A. From a combination of photometry of the Gemini images with that of archival, pre-SN, Very Large Telescope JHK{sub s} images, we derive an accurate observed spectral energy distribution (SED) for the progenitor. We find from nebular strong-intensity emission-line indices for several H II regions near the SN that the metallicity in the environment is likely subsolar (Z Almost-Equal-To 0.6 Z{sub Sun }). The observed SED of the star agrees quite well with synthetic SEDs obtained from model RSG atmospheres with effective temperature T{sub eff} = 3600 {+-} 50 K. We find, therefore, that the star had a bolometric luminosity with respect to the Sun of log (L{sub bol}/L{sub Sun} ) = 4.57 {+-} 0.06 and radius R{sub *} = 496 {+-} 34 R{sub Sun} at {approx}6 months prior to explosion. Comparing the progenitor's properties with theoretical massive-star evolutionary models, we conclude that the RSG progenitor had an initial mass in the range of 8-8.5 M{sub Sun }. This mass is consistent with, albeit at the low end of, the inferred range of initial masses for SN II-P progenitors. It is also consistent with the estimated upper limit on the initial mass of the progenitor of SN 1999br, and it agrees with the low initial masses found for the RSG progenitors of other low-luminosity SNe II-P.

  4. The Epoch of Galaxy Formation

    E-Print Network [OSTI]

    Raul Jimenez

    2001-10-09

    I present a biased review of when the epoch of formation of galaxies (both disks and ellipticals) maybe took place. I base my arguments in simple (mostly) analytic models that have been recently developed to reproduce most of the observed photometric, chemical and dynamical properties of galaxies both at low and high redshift.

  5. Earth and Terrestrial Planet Formation

    E-Print Network [OSTI]

    Jacobson, Seth A

    2015-01-01

    The growth and composition of Earth is a direct consequence of planet formation throughout the Solar System. We discuss the known history of the Solar System, the proposed stages of growth and how the early stages of planet formation may be dominated by pebble growth processes. Pebbles are small bodies whose strong interactions with the nebula gas lead to remarkable new accretion mechanisms for the formation of planetesimals and the growth of planetary embryos. Many of the popular models for the later stages of planet formation are presented. The classical models with the giant planets on fixed orbits are not consistent with the known history of the Solar System, fail to create a high Earth/Mars mass ratio, and, in many cases, are also internally inconsistent. The successful Grand Tack model creates a small Mars, a wet Earth, a realistic asteroid belt and the mass-orbit structure of the terrestrial planets. In the Grand Tack scenario, growth curves for Earth most closely match a Weibull model. The feeding zon...

  6. Cloud Formation, Evolution and Destruction

    E-Print Network [OSTI]

    Estalella, Robert

    Chapter 4 Cloud Formation, Evolution and Destruction We now begin to trace the journey towards a star. How long does this take? The answer is surprisingly short: a good many clouds already contain new stars and these stars tend to be young. The typical cloud cannot spend long, if any time at all

  7. Treating tar sands formations with dolomite

    DOE Patents [OSTI]

    Vinegar, Harold J.; Karanikas, John Michael

    2010-06-08

    Methods for treating a tar sands formation are described herein. The tar sands formation may include dolomite and hydrocarbons. Methods may include providing heat at less than the decomposition temperature of dolomite from one or more heaters to at least a portion of the formation. At least some of the hydrocarbon fluids are mobilized in the formation. At least some of the hydrocarbon fluids may be produced from the formation.

  8. 'Sculptor'-ing the Galaxy? The Chemical Compositions of Red Giants in the Sculptor Dwarf Spheroidal Galaxy

    E-Print Network [OSTI]

    Doug Geisler; Verne V. Smith; George Wallerstein; Guillermo Gonzalez; Corinne Charbonnel

    2004-12-02

    We have used high-resolution, high signal-to-noise spectra obtained with the VLT and UVES to determine abundances of 17 elements in 4 red giants in the Sculptor dwarf spheroidal galaxy. Our [Fe/H] values range from --2.10 to --0.97, confirming previous findings of a large metallicity spread. We have combined our data with similar data for five Sculptor giants studied recently to form one of the largest samples of high resolution abundances yet obtained for a dwarf spheroidal galaxy, covering essentially the full known metallicity range. These properties allow us to establish trends of [X/Fe] with [Fe/H] for many elements, X. The trends are significantly different from the trends seen in galactic halo and globular cluster stars. We compare our Sculptor sample to their most similar Galactic counterparts and find substantial differences remain even with these stars. The many discrepancies in the relationships between [X/Fe] as seen in Sculptor compared with Galactic field stars indicates that our halo cannot be made up in bulk of stars similar to those presently seen in dwarf spheroidal galaxies like Sculptor. These results have serious implications for the Searle-Zinn and hierarchical galaxy formation scenarios. We also find that the most metal-rich star in our sample is a heavy element-rich star. A very high percentage of such heavy element stars are now known in dwarf spheroidals compared to the halo, further mitigating against the formation of the halo from such objects.

  9. Structure and red shift of optical band gap in CdO–ZnO nanocomposite synthesized by the sol gel method

    SciTech Connect (OSTI)

    Mosquera, Edgar, E-mail: edemova@ing.uchile.cl [Laboratorio de Materiales a Nanoescala, Departamento de Ciencia de los Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Av. Tupper 2069, Santiago (Chile); Pozo, Ignacio del, E-mail: ignacio.dpf@gmail.com [Facultad de Ciencias Naturales, Matemáticas y del Medio Ambiente, Universidad Tecnológica Metropolitana, Av. José Pedro Alessandri 1242, Santiago (Chile); Morel, Mauricio, E-mail: mmorel@ing.uchile.cl [Laboratorio de Materiales a Nanoescala, Departamento de Ciencia de los Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Av. Tupper 2069, Santiago (Chile)

    2013-10-15

    The structure and the optical band gap of CdO–ZnO nanocomposites were studied. Characterization using X-ray diffraction (XRD), transmission electron microscopy (TEM) and diffuse reflectance spectroscopy (DRS) analysis confirms that CdO phase is present in the nanocomposites. TEM analysis confirms the formation of spheroidal nanoparticles and nanorods. The particle size was calculated from Debey–Sherrer?s formula and corroborated by TEM images. FTIR spectroscopy shows residual organic materials (aromatic/Olefinic carbon) from nanocomposites surface. CdO content was modified in the nanocomposites in function of polyvinylalcohol (PVA) added. The optical band gap is found to be red shift from 3.21 eV to 3.11 eV with the increase of CdO content. Photoluminescence (PL) measurements reveal the existence of defects in the synthesized CdO–ZnO nanocomposites. - Graphical abstract: Optical properties of ZnO, CdO and ZnO/CdO nanoparticles. Display Omitted - Highlights: • TEM analysis confirms the presence of spherical nanoparticles and nanorods. • The CdO phase is present in the nanocomposites. • The band gap of the CdO–ZnO nanocomposites is slightly red shift with CdO content. • PL emission of CdO–ZnO nanocomposite are associated to structural defects.

  10. The H alpha Galaxy Survey V. The star formation history of late-type galaxies

    E-Print Network [OSTI]

    P. A. James; M. Prescott; I. K. Baldry

    2008-04-14

    This study of 117 low-redshift Im and Sm galaxies investigates the star formation rates of late-type galaxies, to determine whether they are quasi-continuous or dominated by bursts with quiescent interludes. We analyse the distribution of star formation timescales (stellar masses/star formation rates) for the entire sample, and of gas depletion timescales for those galaxies with gas mass measurements. We find that, on average, the late-type galaxies studied could have produced their total stellar masses by an extrapolation of their current star formation activity over a period of just under a Hubble time. This is not the case for a comparison sample of earlier-type galaxies, even those with disk-dominated morphologies and similar total stellar masses to the late-type galaxies. The earlier-type galaxies are on average forming their stars more slowly at present than the average rate over their past histories. No totally quiescent Im or Sm galaxies are found, and although some evidence of intrinsic variation in the star formation rate with time is found, this is typically less than a factor of 2 increase or decrease relative to the mean level. The Im and Sm galaxies have extensive gas reservoirs and can maintain star formation at the current rate for more than another Hubble time. The average spatial distribution of star formation in the Im galaxies, and to a lesser extent the Sm galaxies, is very similar to that of the older stellar population traced by the red light.

  11. Rapid gas hydrate formation process

    DOE Patents [OSTI]

    Brown, Thomas D.; Taylor, Charles E.; Unione, Alfred J.

    2013-01-15

    The disclosure provides a method and apparatus for forming gas hydrates from a two-phase mixture of water and a hydrate forming gas. The two-phase mixture is created in a mixing zone which may be wholly included within the body of a spray nozzle. The two-phase mixture is subsequently sprayed into a reaction zone, where the reaction zone is under pressure and temperature conditions suitable for formation of the gas hydrate. The reaction zone pressure is less than the mixing zone pressure so that expansion of the hydrate-forming gas in the mixture provides a degree of cooling by the Joule-Thompson effect and provides more intimate mixing between the water and the hydrate-forming gas. The result of the process is the formation of gas hydrates continuously and with a greatly reduced induction time. An apparatus for conduct of the method is further provided.

  12. Controlled Irradiative Formation of Penitentes

    E-Print Network [OSTI]

    V. Bergeron; C. Berger; M. D. Betterton

    2006-01-24

    Spike-shaped structures are produced by light-driven ablation in very different contexts. Penitentes 1-4 m high are common on Andean glaciers, where their formation changes glacier dynamics and hydrology. Laser ablation can produce cones 10-100 microns high with a variety of proposed applications in materials science. We report the first laboratory generation of centimeter-scale snow and ice penitentes. Systematically varying conditions allows identification of the essential parameters controlling the formation of ablation structures. We demonstrate that penitente initiation and coarsening requires cold temperatures, so that ablation leads to sublimation rather than melting. Once penitentes have formed, further growth of height can occur by melting. The penitentes intially appear as small structures (3 mm high) and grow by coarsening to 1-5 cm high. Our results are an important step towards understanding and controlling ablation morphologies.

  13. Laser beam pulse formatting method

    DOE Patents [OSTI]

    Daly, T.P.; Moses, E.I.; Patterson, R.W.; Sawicki, R.H.

    1994-08-09

    A method for formatting a laser beam pulse using one or more delay loops is disclosed. The delay loops have a partially reflective beam splitter and a plurality of highly reflective mirrors arranged such that the laser beam pulse enters into the delay loop through the beam splitter and circulates therein along a delay loop length defined by the mirrors. As the laser beam pulse circulates within the delay loop a portion thereof is emitted upon each completed circuit when the laser beam pulse strikes the beam splitter. The laser beam pulse is thereby formatted into a plurality of sub-pulses. The delay loops are used in combination to produce complex waveforms by combining the sub-pulses using additive waveform synthesis. 8 figs.

  14. Shock Formation in Lovelock Theories

    E-Print Network [OSTI]

    Harvey S. Reall; Norihiro Tanahashi; Benson Way

    2014-09-12

    We argue that Lovelock theories of gravity suffer from shock formation, unlike General Relativity. We consider the propagation of (i) a discontinuity in curvature, and (ii) weak, high frequency, gravitational waves. Such disturbances propagate along characteristic hypersurfaces of a "background" spacetime and their amplitude is governed by a transport equation. In GR the transport equation is linear. In Lovelock theories, it is nonlinear and its solutions can blow up, corresponding to the formation of a shock. We show that this effect is absent in some simple cases e.g. a flat background spacetime, and demonstrate its presence for a plane wave background. We comment on weak cosmic censorship, the evolution of shocks, and the nonlinear stability of Minkowski spacetime, in Lovelock theories.

  15. Membrane adhesion and domain formation

    E-Print Network [OSTI]

    Thomas R. Weikl; Reinhard Lipowsky

    2007-09-23

    We review theoretical results for the adhesion-induced phase behavior of biomembranes. The focus is on models in which the membranes are represented as discretized elastic sheets with embedded adhesion molecules. We present several mechanism that lead to the formation of domains during adhesion, and discuss the time-dependent evolution of domain patterns obtained in Monte-Carlo simulations. The simulated pattern dynamics has striking similarities to the pattern evolution observed during T cell adhesion.

  16. Red-Shift Distribution of Gamma-ray Bursts and Their Progenitors

    E-Print Network [OSTI]

    Soomin Jeong; Chang-Hwan Lee

    2007-10-08

    Gamma ray bursts have been divided into two classes, long-soft gamma ray burst and short-hard gamma ray burst according to the bimodal distribution in duration time. Due to the harder spectrum and the lack of afterglows of short-hard bursts in optical and radio observations, different progenitors for short-hard bursts and long-soft bursts have been suggested. Based on the X-ray afterglow observation and the cumulative red-shift distribution of short-hard bursts, Nakar et al. (2006) found that the progenitors of short-hard bursts are consistent with old populations, such as mergers of binary neutron stars. Recently, the existence of two subclasses in long-soft bursts has been suggested after considering multiple characteristics of gamma-ray bursts, including fluences and the duration time. In this work, we extended the analysis of cumulative red-shift distribution to two possible subclasses in L-GRBs. We found that two possible subclass GRBs show different red-shift distributions, especially for red-shifts z > 1. Our results indicate that the accumulative red-shift distribution can be used as a tool to constrain the progenitor characteristics of possible subclasses in L-GRBs.

  17. Absorption and elimination of formate following oral administration of calcium formate in female human subjects

    E-Print Network [OSTI]

    Hanzlik, Robert P.; Fowler, Stephen C.; Eells, Janis T.

    2005-02-01

    Published abstract: Calcium formate is a water-soluble salt of an essential mineral nutrient with potential for use as a dietary calcium supplement. Formate ion is a product of endogenous and xenobiotic metabolism, but sustained high plasma formate...

  18. The Star-Formation History of BCGs to z = 1.8 from the SpARCS/SWIRE Survey: Evidence for significant in-situ star formation at high-redshift

    E-Print Network [OSTI]

    Webb, Tracy; Noble, Allison; Bonaventura, Nina; Geach, James; Hezevah, Yashar; Lidman, Chris; Wilson, Gillian; Yee, H K C; Surace, Jason; Shupe, David

    2015-01-01

    We present the results of a MIPS-24um study of the Brightest Cluster Galaxies (BCGs) of 535 high-redshift galaxy clusters. The clusters are drawn from the Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS), which effectively provides a sample selected on total stellar mass, over 0.2 100uJy, or 23%. The luminosity-limited detection rate of BCGs in similar richness clusters (Ngal> 12) increases rapidly with redshift. Above z ~ 1, an average of ~20\\% of the sample have 24um-inferred infrared luminosities of LIR > 10^12 Lsun, while the fraction below z ~ 1 exhibiting such luminosities is < 1 \\%. The Spitzer-IRAC colors indicate the bulk of the 24um-detected population is predominantly powered by star formation, with only 7/125 galaxies lying within the color region inhabited by Active Galactic Nuclei (AGN). Simple arguments limit the star-formation activity to several hundred million years and this may therefore be indicative of the timescale for AGN feedback to halt the star formation. Below reds...

  19. U-230: Sudo on Red Hat Enterprise Linux %postun Symlink Flaw Lets Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    An updated sudo package that fixes one security issue and several bugs is now available for Red Hat Enterprise Linux 5.

  20. Structure of the eastern Red Rocks and Wind Ridge thrust faults, Wyoming: how a thrust fault gains displacement along strike 

    E-Print Network [OSTI]

    Huntsman, Brent Stanley

    1983-01-01

    OF FIELD MAPPING Methods . Thrust Faults . The Wind Ridge Thrust Fault System The Red Rocks Thrust Fault System CLAY MODEL STUDIES Purpose and Description Model Results DISCUSSION OF RESULTS Kinematics of the Red Rocks Thrust Fault Termination... . Kinematics of the Southern Wind Ridge Thrust Fault . . . A Conceptual Model of the Red Rocks Thrust Fault Termination Implications of the Red Rocks Fault Termination . . . . . . Page V1 V11 1X X1 X11 7 9 17 18 18 21 24 27 35 35 38 49 49...

  1. Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas

    DOE Patents [OSTI]

    Bitensky, Mark W. (Los Alamos, NM); Yoshida, Tatsuro (Los Alamos, NM)

    1997-01-01

    Method using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time is achieved by removing oxygen therefrom at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate.

  2. Prolonged cold storage of red blood cells by oxygen removal and additive usage

    DOE Patents [OSTI]

    Bitensky, M.W.; Yoshida, Tatsuro

    1998-08-04

    Prolonged cold storage of red blood cells by oxygen removal and additive usage. A cost-effective, 4 C storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. The improved in vivo survival and the preservation of adenosine triphosphate levels, along with reduction in hemolysis and membrane vesicle production of red blood cells stored at 4 C for prolonged periods of time, is achieved by reducing the oxygen level therein at the time of storage; in particular, by flushing the cells with an inert gas, and storing them in an aqueous solution which includes adenine, dextrose, mannitol, citrate ion, and dihydrogen phosphate ion, but no sodium chloride, in an oxygen-permeable container which is located in an oxygen-free environment containing oxygen-scavenging materials. 8 figs.

  3. Prolonged cold storage of red blood cells by oxygen removal and additive usage

    DOE Patents [OSTI]

    Bitensky, Mark W. (Boston, MA); Yoshida, Tatsuro (Newton, MA)

    1998-01-01

    Prolonged cold storage of red blood cells by oxygen removal and additive usage. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. The improved in vivo survival and the preservation of adenosine triphosphate levels, along with reduction in hemolysis and membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time, is achieved by reducing the oxygen level therein at the time of storage; in particular, by flushing the cells with an inert gas, and storing them in an aqueous solution which includes adenine, dextrose, mannitol, citrate ion, and dihydrogen phosphate ion, but no sodium chloride, in an oxygen-permeable container which is located in an oxygen-free environment containing oxygen-scavenging materials.

  4. Structure formation: Models, Dynamics and Status

    E-Print Network [OSTI]

    T. Padmanabhan

    1995-08-25

    The constraints on the models for the structure formation arising from various cosmological observations at different length scales are reviewed. The status of different models for structure formation is examined critically in the light of these observations.

  5. XML Format for SESAME and LEOS

    SciTech Connect (OSTI)

    Durrenberger, J K; Neely, J R; Sterne, P A

    2009-04-29

    The objective of this document is to describe the XML format used by LLNL and LANL to represent the equation-of-state and related material information in the LEOS and SESAME data libraries. The primary purpose of this document is to describe a specific XML format for representing EOS data that is tailored to the nature of the underlying data and is amenable to conversion to both legacy SESAME and LEOS binary formats. The secondary purpose is to describe an XML format that lends itself to a 'natural' representation in a binary file format of the SESAME, pdb or hdf5 form so that this format and related tools can be used for the rapid and efficient development and implementation of prototype data structures. This document describes the XML format only. A working knowledge of LEOS and SESAME formats is assumed.

  6. Dynamics and control of electromagnetic satellite formations

    E-Print Network [OSTI]

    Ahsun, Umair, 1972-

    2007-01-01

    Satellite formation flying is an enabling technology for many space missions, especially for space-based telescopes. Usually there is a tight formation-keeping requirement that may need constant expenditure of fuel or at ...

  7. Formation damage in underbalanced drilling operations 

    E-Print Network [OSTI]

    Reyes Serpa, Carlos Alberto

    2003-01-01

    Formation damage has long been recognized as a potential source of reduced productivity and injectivity in both horizontal and vertical wells. From the moment that the pay zone is being drilled until the well is put on production, a formation...

  8. La cl informatique Formation Word XP

    E-Print Network [OSTI]

    Vellend, Mark

    La clé informatique Formation Word XP Aide-mémoire Hiver 2004 #12;#12;Formation Word XP Hiver 2004 1. PRÉSENTATION DE L'INTERFACE DE MICROSOFT WORD XP................ 1 1.1. L'interface générale

  9. Proportional structural effects of formative indicators

    E-Print Network [OSTI]

    Franke, George R.; Preacher, Kristopher J.; Rigdon, Ed E.

    2009-03-15

    that are proportional to their effects on the formative construct itself. This constraint has important implications for developing and testing formative models. This study demonstrates the existence of the constraint, shows that researchers must consider...

  10. Arp 65 interaction debris: massive HI displacement and star formation

    E-Print Network [OSTI]

    Sengupta, Chandreyee; Paudel, Sanjaya; Saikia, D J; Dwarakanath, K S; Sohn, B W

    2015-01-01

    Context: Pre-merger interactions between galaxies can induce significant changes in the morphologies and kinematics of the stellar and ISM components. Large amounts of gas and stars are often found to be disturbed or displaced as tidal debris. This debris then evolves, sometimes forming stars and occasionally tidal dwarf galaxies. Here we present results from our HI study of Arp 65, an interacting pair hosting extended HI tidal debris. Aims: In an effort to understand the evolution of tidal debris produced by interacting pairs of galaxies, including in situ star and tidal dwarf galaxy formation, we are mapping HI in a sample of interacting galaxy pairs. The Arp 65 pair is one of them. Methods: Our resolved HI 21 cm line survey is being carried out using the Giant Metrewave Radio Telescope (GMRT). We used our HI survey data as well as available SDSS optical, Spitzer infra-red and GALEX UV data to study the evolution of the tidal debris and the correlation of HI with the star-forming regions within it. Results:...

  11. The Formation of Pb(IV) Oxides in Chlorinated Water

    SciTech Connect (OSTI)

    Lytle, Darren A.; Schock, Michael R. (EPA)

    2008-06-09

    Recent research has shown that Pb(IV) oxides play a significant geochemical role in drinking water distribution systems. However, most of the guidance for lead control in drinking water is based on the presumption that Pb(II) solids control lead solubility. Therefore, a better understanding of the chemistry of Pb(IV) in water is needed. Long-term lead precipitation experiments were conducted in chlorinated water (1-3 mg/L Cl{sub 2}) at pH 6.5,8, and 10, with and without sulfate. Results showed that two Pb(IV) dioxide polymorphs-plattnerite ({beta}-PbO{sub 2}) and scrutinyite ({alpha}-PbO{sub 2})-formed over time, as long as a high suspension redox potential was maintained with free chlorine. Neither mineral formed spontaneously, and the rate of formation increased with increasing pH. Hydrocerrusite and/or cerrusite initially precipitated out and overtime either disappeared or coexisted with PbO{sub 2}. Water pH dictated mineralogical presence. High pH favored hydrocerrusite and scrutinyite; low pH favored cerrusite and plattnerite. Along with a transformation of Pb(II) to Pb(IV) came a change in particle color from white to a dark shade of red to dark grey (differing with pH) and a decrease in lead solubility. If free chlorine was permitted to dissipate, the aging processes (i.e., mineralogy, color, and solubility) were reversible.

  12. redMaPPer. I. Algorithm and SDSS DR8 catalog

    SciTech Connect (OSTI)

    Rykoff, E. S.; Rozo, E.; Reddick, R.; Wechsler, R. H.; Busha, M. T.; Cunha, C. E.; Finoguenov, A.; Evrard, A.; Koester, B. P.; Hao, J.; Nord, B.; Leauthaud, A.; Pierre, M.; Sadibekova, T.; Sheldon, E. S.

    2014-04-20

    We describe redMaPPer, a new red sequence cluster finder specifically designed to make optimal use of ongoing and near-future large photometric surveys. The algorithm has multiple attractive features: (1) it can iteratively self-train the red sequence model based on a minimal spectroscopic training sample, an important feature for high-redshift surveys. (2) It can handle complex masks with varying depth. (3) It produces cluster-appropriate random points to enable large-scale structure studies. (4) All clusters are assigned a full redshift probability distribution P(z). (5) Similarly, clusters can have multiple candidate central galaxies, each with corresponding centering probabilities. (6) The algorithm is parallel and numerically efficient: it can run a Dark Energy Survey-like catalog in ?500 CPU hours. (7) The algorithm exhibits excellent photometric redshift performance, the richness estimates are tightly correlated with external mass proxies, and the completeness and purity of the corresponding catalogs are superb. We apply the redMaPPer algorithm to ?10, 000 deg{sup 2} of SDSS DR8 data and present the resulting catalog of ?25,000 clusters over the redshift range z in [0.08, 0.55]. The redMaPPer photometric redshifts are nearly Gaussian, with a scatter ? {sub z} ? 0.006 at z ? 0.1, increasing to ? {sub z} ? 0.02 at z ? 0.5 due to increased photometric noise near the survey limit. The median value for |?z|/(1 + z) for the full sample is 0.006. The incidence of projection effects is low (?5%). Detailed performance comparisons of the redMaPPer DR8 cluster catalog to X-ray and Sunyaev-Zel'dovich catalogs are presented in a companion paper.

  13. Crystallographic study of red fluorescent protein eqFP578 and its far-red variant Katushka reveals opposite pH-induced isomerization of chromophore

    SciTech Connect (OSTI)

    Pletneva, Nadya V.; Pletnev, Vladimir Z.; Shemiakina, Irina I.; Chudakov, Dmitriy M.; Artemyev, Igor; Wlodawer, Alexander; Dauter, Zbigniew; Pletnev, Sergei (Russ. Acad. Sci.); (SAIC); (NCI)

    2012-08-10

    The wild type red fluorescent protein eqFP578 (from sea anemone Entacmaea quadricolor, {lambda}{sub ex} = 552 nm, {lambda}{sub em} = 578 nm) and its bright far-red fluorescent variant Katushka ({lambda}{sub ex} = 588 nm, {lambda}{sub em} = 635 nm) are characterized by the pronounced pH dependence of their fluorescence. The crystal structures of eqFP578f (eqFP578 with two point mutations improving the protein folding) and Katushka have been determined at the resolution ranging from 1.15 to 1.85 {angstrom} at two pH values, corresponding to low and high level of fluorescence. The observed extinguishing of fluorescence upon reducing pH in eqFP578f and Katushka has been shown to be accompanied by the opposite trans-cis and cis-trans chromophore isomerization, respectively. Asn143, Ser158, His197 and Ser143, Leu174, and Arg197 have been shown to stabilize the respective trans and cis fluorescent states of the chromophores in eqFP578f and Katushka at higher pH. The cis state has been suggested as being primarily responsible for the observed far-red shift of the emission maximum of Katushka relative to that of eqFP578f.

  14. Treating nahcolite containing formations and saline zones

    DOE Patents [OSTI]

    Vinegar, Harold J

    2013-06-11

    A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity cogeneration facility. The heated water is provided to the nahcolite containing formation. A fluid is produced from the nahcolite containing formation. The fluid includes at least some dissolved nahcolite. At least some of the fluid is provided to the saline zone.

  15. Red Hat Enterprise Virtualization - KVM-based infrastructure services at BNL

    SciTech Connect (OSTI)

    Cortijo, D.

    2011-06-14

    Over the past 18 months, BNL has moved a large percentage of its Linux-based servers and services into a Red Hat Enterprise Virtualization (RHEV) environment. This presentation will address our approach to virtualization, critical decision points, and a discussion of our implementation. Specific topics will include an overview of hardware and software requirements, networking, and storage; discussion of the decision of Red Hat solution over competing products (VMWare, Xen, etc); details on some of the features of RHEV - both current and on their roadmap; Review of performance and reliability gains since deployment completion; path forward for RHEV at BNL and caveats and potential problems.

  16. Efficient utilization of red maple lumber in glued-laminated timber beams. Forest Service research paper

    SciTech Connect (OSTI)

    Janowiak, J.J.; Manbeck, H.B.; Hernandez, R.; Moody, R.C.; Blankenhorn, P.R.

    1995-09-01

    The feasibility of utilizing cant-sawn hardwood lumber, which would not usually be desired for furniture manufacture, was studied for the manufacture of structural glue-laminated (glulam) timber. Two red maple beam combinations were evaluated. Test results of 42 red maple glulam beams showed that it was feasible to develop structural glulam timber from cant-swan lumber. The glulam combinations made from E-rated lumber exceeded the target design bending stress of 2,400 lb/in 2 and met the target modulus of elasticity (MOE) of 1.8 x 106 lb/in 2.

  17. Electromagnetic Formation Flight of Satellite Arrays

    E-Print Network [OSTI]

    Electromagnetic Formation Flight of Satellite Arrays Daniel W. Kwon and David W. Miller February 2005 SSL # 2-05 #12;#12;Electromagnetic Formation Flight of Satellite Arrays By DANIEL W. KWON S;#12;Electromagnetic Formation Flight of Satellite Arrays by DANIEL W. KWON Submitted to the Department of Aeronautics

  18. Electrochemical formation of field emitters

    SciTech Connect (OSTI)

    Bernhardt, Anthony F. (Berkeley, CA)

    1999-01-01

    Electrochemical formation of field emitters, particularly useful in the fabrication of flat panel displays. The fabrication involves field emitting points in a gated field emitter structure. Metal field emitters are formed by electroplating and the shape of the formed emitter is controlled by the potential imposed on the gate as well as on a separate counter electrode. This allows sharp emitters to be formed in a more inexpensive and manufacturable process than vacuum deposition processes used at present. The fabrication process involves etching of the gate metal and the dielectric layer down to the resistor layer, and then electroplating the etched area and forming an electroplated emitter point in the etched area.

  19. Petrophysical evaluation of subterranean formations

    DOE Patents [OSTI]

    Klein, James D; Schoderbek, David A; Mailloux, Jason M

    2013-05-28

    Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.

  20. Formation Flying and Deformable Instruments

    SciTech Connect (OSTI)

    Rio, Yvon

    2009-05-11

    Astronomers have always attempted to build very stable instruments. They fight all that can cause mechanical deformation or image motion. This has led to well established technologies (autoguide, active optics, thermal control, tip/tilt correction), as well as observing methods based on the use of controlled motion (scanning, micro scanning, shift and add, chopping and nodding). Formation flying disturbs this practice. It is neither possible to reduce the relative motion to very small amplitudes, nor to control it at will. Some impacts on Simbol-X instrument design, and operation are presented.

  1. Heating tar sands formations while controlling pressure

    DOE Patents [OSTI]

    Stegemeier, George Leo (Houston, TX) [Houston, TX; Beer, Gary Lee (Houston, TX) [Houston, TX; Zhang, Etuan (Houston, TX) [Houston, TX

    2010-01-12

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240.degree. C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.

  2. Coring in deep hardrock formations

    SciTech Connect (OSTI)

    Drumheller, D.S.

    1988-08-01

    The United States Department of Energy is involved in a variety of scientific and engineering feasibility studies requiring extensive drilling in hard crystalline rock. In many cases well depths extend from 6000 to 20,000 feet in high-temperature, granitic formations. Examples of such projects are the Hot Dry Rock well system at Fenton Hill, New Mexico and the planned exploratory magma well near Mammoth Lakes, California. In addition to these programs, there is also continuing interest in supporting programs to reduce drilling costs associated with the production of geothermal energy from underground sources such as the Geysers area near San Francisco, California. The overall progression in these efforts is to drill deeper holes in higher temperature, harder formations. In conjunction with this trend is a desire to improve the capability to recover geological information. Spot coring and continuous coring are important elements in this effort. It is the purpose of this report to examine the current methods used to obtain core from deep wells and to suggest projects which will improve existing capabilities. 28 refs., 8 figs., 2 tabs.

  3. Coke formation in visbreaking process

    SciTech Connect (OSTI)

    Yan, T.Y. )

    1987-04-01

    Visbreaking is a mild cracking process primarily used to reduce residual oil viscosity and thus decrease the amount of cutter stock required for blending to heavy fuels specification. It can also be used to produce incremental quantities of gasoline, middle distillates and catalytic cracker feeds. This process was widely used in the 1930s and 1940s and became obsolete until a few years ago. When the need for increased conversion of residues to light products became desirable, visbreaking offered economic advantages to many refining schemes - especially in Western Europe. Between 1978-1981, Exxon brought on stream seven visbreakers ranging from 1900 to 9100 tons/SD capacity. In January 1983, the world-wide visbreaking capacity was over 2 MM B/SD. The visbreaking process and its application in refinery operations have been well described. In general, the process economics improve as the process severity is increased but it is limited by coke formation in the process. For this reason, they have studied the kinetics of coke formation in the visbreaking process.

  4. Cobalt-iron red-ox behavior in nanostructured La{sub 0.4}Sr{sub 0.6}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} cathodes

    SciTech Connect (OSTI)

    Soldati, Analia L.; Baque, Laura; Napolitano, Federico; Serquis, Adriana

    2013-02-15

    Nano-sized La{sub 0.4}Sr{sub 0.6}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} (LSCF) perovskite samples (prepared by a conventional acetate route and a novel acetate synthesis with HMTA additives), were tested simulating a red-ox cycle. The crystallography was studied by X-ray Powder Diffraction (XPD) and the changes in the oxidation state of the perovskite B-site were evaluated by synchrotron X-ray Absorption Near Edge Spectroscopy (XANES). After a reducing treatment, LSFC particles show the appearance of a new phase that coexists with the original one. The structural change is accompanied by a Co and Fe formal oxidation states decrease, although Fe remains always closer to 4+ and Co closer to 3+. The treatment produces a B-site valence average reduction from 3.52+ to 3.26+ and the formation of oxygen vacancies. A re-oxidation treatment under O{sub 2} rich atmosphere at 800 Degree-Sign C for 10 h shows that the change is reversible and independent of the two chemical methods used to synthesize the LSCF nano-particles. - Graphical abstract: XANES and XPD measurements in nanostructured LSCF before (black) and after (red/green) a red/ox cycle. Highlights: Black-Right-Pointing-Pointer Red-ox treatments in LSCF nano-particles cause a reversible reaction. Black-Right-Pointing-Pointer XPD analyses show that a new 'reduced' phase coexist with the oxidize one. Black-Right-Pointing-Pointer The B-site formal oxidation state decreases and the {delta} increases upon reduction. Black-Right-Pointing-Pointer Fe remains in a higher valence (closer to 4+) than Co (close to 3+). Black-Right-Pointing-Pointer The behavior seems to be independent of the synthesis method used.

  5. Temporal and Spatial Variability in Juvenile Red Snapper Otolith Elemental Signatures in the Northern Gulf of Mexico

    E-Print Network [OSTI]

    Chen, Zhongxing

    popula- tion structure and population dynamics have greatly increased knowledge of red snapper ecology. Red snapper have been managed historically as a single unit stock in the GOM. That approach; Garber et al. 2004). Gold et al. (2001) reported similar findings based on nuclear DNA microsatellite

  6. Influence of temperature and body mass on standard metabolic rate of eastern red-backed salamanders (Plethodon cinereus)

    E-Print Network [OSTI]

    Hopkins, William A.

    Influence of temperature and body mass on standard metabolic rate of eastern red-backed salamanders 29 October 2009 Accepted 20 January 2010 Keywords: Eastern red-backed salamander Oxygen consumption be used to investigate questions of applied or basic ecological interest, such as quantifying energetic

  7. Sequential FRET Processes in Calix[4]arene-Linked Orange-Red-Green Perylene Bisimide Dye Zigzag Arrays

    E-Print Network [OSTI]

    van Stokkum, Ivo

    Sequential FRET Processes in Calix[4]arene-Linked Orange-Red-Green Perylene Bisimide Dye Zigzag, red, and green PBIs) have been synthesized. Within these arrays, the individual chromophoric building of the femtosecond transient absorption data. These studies reveal very efficient energy transfer processes from

  8. First local seismic tomography for Red River shear zone, northern Vietnam: Stepwise inversion employing crustal P and Pn waves

    E-Print Network [OSTI]

    Wu, Yih-Min

    First local seismic tomography for Red River shear zone, northern Vietnam: Stepwise inversion shear zone Northern Vietnam Local seismic tomography Pn wave Moho depth The 900-km-long Red River shear of southeastern Asia, but has been challenged by many of views, as some new records mainly from northern Vietnam

  9. Method and kit for the selective labeling of red blood cells in whole blood with Tc-99m

    DOE Patents [OSTI]

    Srivastava, S.C.; Babich, J.W.; Straub, R.; Richards, P.

    1988-07-05

    Disclosed herein are a method and kit for the preparation of [sup 99m]Tc labeled red blood cells using whole blood in a closed sterile system containing stannous tin in a form such that it will enter the red blood cells and be available for the reduction of technetium. No Drawings

  10. AGE AND GROWTH OF RED DRUM, SCIAENOPS OCELLATUS, FROM OFFSHORE WATERS OF THE NORTHERN GULF OF MEXIC01

    E-Print Network [OSTI]

    AGE AND GROWTH OF RED DRUM, SCIAENOPS OCELLATUS, FROM OFFSHORE WATERS OF THE NORTHERN GULF OF MEXIC was Lt = 1.013(1 - 6 -O,Il88(/+11.291), where t is age (Years) and L t is fork length (nun). The red drum

  11. Red Algae Respond to Waves: Morphological and Mechanical Variation in Mastocarpus papillatus Along

    E-Print Network [OSTI]

    Denny, Mark

    Red Algae Respond to Waves: Morphological and Mechanical Variation in Mastocarpus papillatus Along Grove, California, 93950 Abstract. Intertidal algae are exposed to the potentially severe drag forces generated by crashing waves, and several species of brown algae respond, in part, by varying the strength

  12. Minimal RED Cell Pairs Markedly Improve Electrode Kinetics and Power Production in Microbial Reverse Electrodialysis Cells

    E-Print Network [OSTI]

    improved compared to microbial fuel cells (MFCs) by using ammonium bicarbonate (AmB) solutions in multiple electrodes used in a microbial fuel cell (MFC) are placed on each side of a reverse electrodialysis (RED increasing power production (Acetate: 4.2 W/m2 ; WW: 1.9 W/m2 ). By maintaining near optimal electrode power

  13. Botanical Name Qty Common Name Description Price Size Abutilon 'Dwarf Red' 20 flowering maple

    E-Print Network [OSTI]

    Pasternack, Gregory B.

    flowering maple 18" x 24"; evergreen. Orange-red bell-shaped flowers most of the year, attract hummingbirds. Frost-tender. $11.00 1G S B4 Abutilon 'Painted Bells' 16 gold and orange rose flowering maple to 6, showy globes of purple flowers with a metallic sheen in early summer. $7.50 4" BU, + B6 Aloe 'Caitlin' 5

  14. Observations of the thermal environment on Red Sea platform reefs: a heat budget analysis

    E-Print Network [OSTI]

    Pineda, Jesús

    REPORT Observations of the thermal environment on Red Sea platform reefs: a heat budget analysis K typically thrive in environments characterized by a high degree of thermal stability (Hoegh-Guldberg 1999 on the shelf. Additionally, our observations reveal the proximity of distinct thermal microclimates within

  15. Hydrogen-terminated silicon nanowire photocatalysis: Benzene oxidation and methyl red decomposition

    SciTech Connect (OSTI)

    Lian, Suoyuan; School of Chemical Engineering and Materials, Dalian Polytechnic University, Dalian 116034 ; Tsang, Chi Him A.; Centre of Super Diamond and Advanced Films, City University of Hong Kong, Hong Kong ; Kang, Zhenhui; Liu, Yang; Wong, Ningbew; Lee, Shuit-Tong; Centre of Super Diamond and Advanced Films, City University of Hong Kong, Hong Kong

    2011-12-15

    Graphical abstract: H-SiNWs can catalyze hydroxylation of benzene and degradation of methyl red under visible light irradiation. Highlights: Black-Right-Pointing-Pointer Hydrogen-terminated silicon nanowires were active photocatalyst in the hydroxylation of benzene under light. Black-Right-Pointing-Pointer Hydrogen-terminated silicon nanowires were also effective in the decomposition of methyl red dye. Black-Right-Pointing-Pointer The Si/SiO{sub x} core-shell structure is the main reason of the obtained high selectivity during the hydroxylation. -- Abstract: Hydrogen-terminated silicon nanowires (H-SiNWs) were used as heterogeneous photocatalysts for the hydroxylation of benzene and for the decomposition of methyl red under visible light irradiation. The above reactions were monitored by GC-MS and UV-Vis spectrophotometry, respectively, which shows 100% selectivity for the transformation of benzene to phenol. A complete decomposition of a 2 Multiplication-Sign 10{sup -4} M methyl red solution was achieved within 30 min. The high selectivity for the hydroxylation of benzene and the photodecomposition demonstrate the catalytic activity of ultrafine H-SiNWs during nanocatalysis.

  16. Red Sea during the Last Glacial Maximum: Implications for sea level reconstruction

    E-Print Network [OSTI]

    Peltier, W. Richard

    . Gildor,1 and W. R. Peltier2 Received 13 February 2007; revised 29 July 2007; accepted 30 October 2007 based on the ICE-5G (VM2) model. Citation: Biton, E., H. Gildor, and W. R. Peltier (2008), Red Sea sea level reduction for the LGM interval range between approximately 120 m [Peltier, 2004, 2002

  17. Author's personal copy Thermal radiators with embedded pulsating heat pipes: Infra-red thermography

    E-Print Network [OSTI]

    Khandekar, Sameer

    Author's personal copy Thermal radiators with embedded pulsating heat pipes: Infra-red thermography December 2010 Accepted 9 January 2011 Available online 18 January 2011 Keywords: Pulsating heat pipes t With the aim of exploring potential applications of Pulsating Heat Pipes (PHP), for space/terrestrial sectors

  18. Supplemental Information: Combined simulation and experimental study of large deformation of red blood

    E-Print Network [OSTI]

    Dao, Ming

    Supplemental Information: Combined simulation and experimental study of large deformation of red, bending energy, constraints of fixed surface area and enclosed volume. 1 Supplemental Materials (Not to be Published) #12;Supplemental Material by Quinn et al. 2 bending energy is given by Fbending = adjacent , pair

  19. ATOMIC AND MOLECULAR EMISSION LINES FROM THE RED RECTANGLE1 L. M. Hobbs,2

    E-Print Network [OSTI]

    Oka, Takeshi

    ATOMIC AND MOLECULAR EMISSION LINES FROM THE RED RECTANGLE1 L. M. Hobbs,2 J. A. Thorburn,2 T. Oka,3 emission lines of 12 elements are detected in the star's spectrum, along with 76 emission lines of CH, CH of the various species can be classified into three groups: narrow, broad, or double-peaked. The emission

  20. Abstract--Commercial harvest of red sea urchins began in Washington state

    E-Print Network [OSTI]

    662 Abstract--Commercial harvest of red sea urchins began in Washington state in 1971. Harvests peaked in the late 1980s and have since declined substan tially in Washington and other areas of the U in Washington. Manuscript accepted 28 March 2002. Fish. Bull. 100:662­673 (2002). Effects of experimental

  1. Iron oxide mineralogy in late Miocene red beds from La Gloria, Spain: rock-magnetic,

    E-Print Network [OSTI]

    Utrecht, Universiteit

    to characterize the mineralogy of free ferric oxides and to estimate the ratio of goethite and to hematite Elsevier Science B.V. All rights reserved. Keywords: Fe oxides; Goethite; Hematite; Red beds; Voltammetry minerals (Singer, 1980). In particular, the goethite to hematite ratio is considered to be a good parameter

  2. Mortality in Southern Ontario Red Pine Plantations: Causes, Consequences, and Management Options

    E-Print Network [OSTI]

    Hsiang, Tom

    No. 69 2010 Mortality in Southern Ontario Red Pine Plantations: Causes, Consequences, and Management Options By J.A. McLAughLin1 , T. hsiAng2 , g. hALicki hAyden1 And s. greifenhAgen1 1 Ontario that is among the most extensively planted tree species in southern Ontario. In the 1920s, reforestation

  3. Making the links: towards a global taxonomy for the red algal genus Porphyra (Bangiales, Rhodophyta)

    E-Print Network [OSTI]

    Making the links: towards a global taxonomy for the red algal genus Porphyra (Bangiales, Rhodophyta. Here, it is proposed that a global taxonomy for the group would enable resolution and consensus. Using areas throughout the tree. We have concluded that to achieve a global taxonomy standard molecular

  4. Stacked white OLED having separate red, green and blue sub-elements

    DOE Patents [OSTI]

    Forrest, Stephen; Qi, Xiangfei; Slootsky, Michael

    2015-06-23

    The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. The sub-elements are separated by charge generating layers.

  5. Infra-red detector and method of making and using same

    DOE Patents [OSTI]

    Craig, Richard A. (Richland, WA); Griffin, Jeffrey W. (Kennewick, WA)

    2007-02-20

    A low-cost infra-red detector is disclosed including a method of making and using the same. The detector employs a substrate, a filtering layer, a converting layer, and a diverter to be responsive to wavelengths up to about 1600 nm. The detector is useful for a variety of applications including spectroscopy, imaging, and defect detection.

  6. Red emitting photonic devices using InGaP/InGaAlP material system

    E-Print Network [OSTI]

    Kangude, Yamini

    2005-01-01

    In this thesis, two red emitting photonic devices are presented using the InGaP/InGaAlP material system. InGaP/InGaAlP material system provides large flexibility in the band gap energy while being lattice matched to GaAs ...

  7. Torque-generating malaria-infected red blood cells in an optical trap

    E-Print Network [OSTI]

    Sharma, Shobhona

    Torque-generating malaria-infected red blood cells in an optical trap J.A. Dharmadhikari, S. Roy, A 005, India # atmol1@tifr.res.in Abstract: We have used optical tweezers to trap normal and Plasmodium emerge from our experiments. Firstly, while the optical field modifies both types of RBCs in the same

  8. The Density and Spectral Energy Distributions of Red Galaxies at z~3.7

    E-Print Network [OSTI]

    Brammer, G B; Brammer, Gabriel B.; Dokkum, Pieter G. van

    2006-01-01

    We use the deep NIR imaging of the FIRES survey to investigate trends with redshift of the properties of galaxies selected to have strong Balmer/4000A breaks at 21.3 (AB) color criterion designed to select red galaxies at z>2, we propose two color criteria, J-H>0.9 and H-K>0.9, to select red galaxies in two redshift bins at 2=2.4 that satisfy Js-H>0.9; H=3.7 that satisfy H-Ks>0.9; Ks<24.6, where the flux limits are chosen to match the limiting rest-frame luminosities at the different median redshifts of the two samples. The space densities of the Js-H and H-Ks samples are 1.5+-0.5x10^-4 and 1.2+-0.4x10^-4 Mpc^-3, respectively. The rest-frame U-B colors of galaxies in both samples are similarly red (as expected from the definition of the color criteria), but the rest-frame UV properties are different: galaxies in the higher-redshift H-K selected sample have blue NUV-optical colors and UV slopes similar to those of Lyman Break Galaxies, while the J-H galaxies are generally red over the entire wavelength rang...

  9. On the Interaction of Jupiter's Great Red Spot and Zonal Jet Streams SUSHIL SHETTY

    E-Print Network [OSTI]

    Marcus, Philip S.

    On the Interaction of Jupiter's Great Red Spot and Zonal Jet Streams SUSHIL SHETTY Department- boring jet streams, the shear imposed on the GRS by the jet streams, and the vertical entropy gradient (i. The westward-going jet stream to the north of the GRS and the eastward-going jet stream to its south are each

  10. Impact of the red imported fire ant on newly hatched northern bobwhite 

    E-Print Network [OSTI]

    Pedersen, Elena Kalleso

    1994-01-01

    The response of northern bobwhite (Colinus virginianus) to the presence of red imported fire ants (Solenopsis invicta) during the first 6 days post-hatching was examined in a 9-week-field experiment during spring and summer 1993 in southeastern...

  11. Evaluation of Potential Dietary Arginine-Lysine Antagonism in Red Drum Sciaenops ocellatus 

    E-Print Network [OSTI]

    Fauzi, Ichsan A

    2013-09-03

    Two feeding trials were conducted to evaluate possible dietary arginine-lysine antagonisms in the red drum (Sciaenops ocellatus). In the first feeding trial, seven dietary treatments with arginine levels of 1.0, 1.25, 1.5 (previously established...

  12. Characterization of freshwater as a treatment for amyloodiniosis in red drum 

    E-Print Network [OSTI]

    Harris, Courtney Elaine

    1999-01-01

    to the gills, skin, and fins of host fish such as red drum (Sciaenops ocellatus), a euryhaline teleost cultured intensively for seafood in Texas and other Gulf states. Amyloodinium ocellatum has a wide range of tolerance to salinity, but freshwater exposure...

  13. TRACKING THE EVOLUTION OF LUMINOUS RED GALAXIES USING THE DARK ENERGY SURVEY 

    E-Print Network [OSTI]

    Mondrik, Nicholas P

    2014-09-22

    in this thesis an analysis of the mass and color evolution (from $z=0.1$ to $z=1$) of a subset of galaxies called luminous red galaxies (LRGs) taken from the Dark Energy Survey. LRGs are the most massive galaxies found in the nearby universe, and typically...

  14. Oscillatory convective modes in red giants: a possible explanation of the long secondary periods

    E-Print Network [OSTI]

    Saio, Hideyuki; Takayama, Masaki; Ita, Yoshifusa

    2015-01-01

    We discuss properties of oscillatory convective modes in low-mass red giants, and compare them with observed properties of the long secondary periods (LSPs) of semi-regular red giant variables. Oscillatory convective modes are very nonadiabatic g$^{-}$ modes and they are present in luminous stars, such as red giants with $\\log L/{\\rm L}_\\odot \\ga 3$. Finite amplitudes for these modes are confined to the outermost nonadiabatic layers, where the radiative energy flux is more important than the convective energy flux. The periods of oscillatory convection modes increase with luminosity, and the growth times are comparable to the oscillation periods. The LSPs of red giants in the Large Magellanic Cloud (LMC) are observed to lie on a distinct period-luminosity sequence called sequence D. This sequence D period-luminosity relation is roughly consistent with the predictions for dipole oscillatory convective modes in AGB models if we adopt a mixing length of 1.2 pressure scale height ($\\alpha = 1.2$). However, the ef...

  15. For Immediate Release --Thursday, April 3, 2014 Pronghorns men's hockey program taps Red Wings

    E-Print Network [OSTI]

    Morris, Joy

    with the American Hockey League's Grand Rapids Griffins, the top affiliate of the Detroit, the accessibility of Mike Babcock and his staff in Detroit has been beneficial to my in Detroit. Anastas has had the opportunity to work closely with the Red Wings

  16. Optical, radio and x-ray radiation of red sprites produced by runaway air breakdown

    SciTech Connect (OSTI)

    Yukhimuk, V.; Roussel-Dupre, R.; Symbalisty, E.; Taranenko, Y.

    1997-04-01

    The authors use the runaway air breakdown model of upward discharges to calculate optical, radio, and X-ray radiation generated by red sprites. Red sprites are high altitude (up to 90 km) lightning discharges. Aircraft based observations show that sprites are predominantly red in color at altitudes above {approximately}55 km with faint blue tendrils, which extend downward to an altitude of 40 km; the duration of a single sprite is less than 17 ms, their maximum brightness is about 600 kR, and estimated total optical energy is about 1--5 kJ per event. The ground based observations show similar results, and provide some additional information on spatial and temporal structure of sprites, and on sprite locations. One difference between aircraft and ground-based observations is that blue tendrils are rarely observed from the ground. Sprites usually occur above the anvils of large mesoscale convective systems and correlate with strong positive cloud to ground discharge. Upward discharges are the most probable source of X-ray emission observed above large thunderstorm complexes by the Compton Gamma-ray Observatory. To escape the atmosphere these {gamma}-rays must originate above 25 km altitude. Red sprites are usually observed at altitudes higher than 50 km, and are therefore a likely source of this x-ray emission.

  17. Guiding of cold atoms by a red-detuned laser beam of moderate power

    E-Print Network [OSTI]

    Amsterdam, Universiteit van

    Guiding of cold atoms by a red-detuned laser beam of moderate power B T Wolschrijn, R A Cornelussen laser power (atoms. We systematically study laser power. We systematically study the fraction of guided atoms by varying the main parameters, laser

  18. MAGNETIC ANISOTROPY AS AN AID TO IDENTIFYING CRM AND DRM IN RED SEDIMENTARY ROCKS

    E-Print Network [OSTI]

    Utrecht, Universiteit

    the remanence anisotropy of hematite-bearing sedimentary rocks. It also shows that very high magnetic fieldsMAGNETIC ANISOTROPY AS AN AID TO IDENTIFYING CRM AND DRM IN RED SEDIMENTARY ROCKS K.P. KODAMA1 June, 2004; Accepted: August 25, 2004 ABSTRACT To further evaluate the potential of magnetic anisotropy

  19. The flow of red blood cells through a narrow spleen-like slit Jonathan B. Freund

    E-Print Network [OSTI]

    Freund, Jonathan B.

    . [http://dx.doi.org/10.1063/1.4819341] I. INTRODUCTION Flowing red blood cells are well-known to display Since capillary blood vessels are as small as 4 m,3 significant deformations are essential for normal devices of the same scale as blood cells, which offers the possibility of testing or sorting blo

  20. Phys 123 Exam 3 pg 1 Fall 2010 RED barcode here

    E-Print Network [OSTI]

    Hart, Gus

    Phys 123 Exam 3 ­ pg 1 Fall 2010 RED barcode here Physics 123 section 2 Exam 3 Colton 2-3669 Please in SI units, to 3 or 4 significant digits. For answers that rely on intermediate results, remember __________ Problem 8 __________ Problem 9 __________ Extra Credit __________ Total _____________ #12;Phys 123 Exam 3

  1. Intense red upconversion luminescence from Tm3Yb3 codoped transparent glass ceramic

    E-Print Network [OSTI]

    Cao, Wenwu

    Intense red upconversion luminescence from Tm3Yb3 codoped transparent glass ceramic Wei Xu,1 (Doc. ID 158093); published January 12, 2012 Tm3Yb3 codoped transparent glass ceramic containing -PbF2 choose the oxyfluoride glass ceramic as the host material in our investigations. Through thermal treat

  2. Standing Wave Enhancement of Red Absorbance and Photocurrent in Dye-Sensitized Titanium Dioxide

    E-Print Network [OSTI]

    , American UniVersity of Beirut, Beirut 110236, Lebanon, and National Renewable Energy Laboratory, Golden the Department of Chemistry, The PennsylVania State UniVersity, UniVersity Park, PennsylVania 16802, Central-state excess free energy, and this limits their usefulness. Our approach to enhancing the red response

  3. GEORGE, J. C. 1962. A histophysiological study ofthe red and white mus-

    E-Print Network [OSTI]

    . MidI. Nat. 68:487-494. GORDON, M. S. 1968. Oxygen consumption of red and white muscles from tuna.). Compo Biochem. Physiol. 49B:367-373. JOHNSTON, I. A., W. DAVISON, AND G. GOLDSPINK. 1977. Energy that is common in southern California 1965; StephensetaI.1974). These authors and Helly' have suggested

  4. Understanding Blue-to-Red Conversion in Monomeric Fluorescent Timers and Hydrolytic Degradation of Their

    E-Print Network [OSTI]

    Verkhusha, Vladislav V.

    Understanding Blue-to-Red Conversion in Monomeric Fluorescent Timers and Hydrolytic Degradation phenolate oxygen and the side chain hydroxyl of Ser146. In Blue102, a bulky side chain of Ile146 precludes-FT and Blue102 structures revealed hydrolytic degradation of the chromophores. In Fast-FT, chromophore

  5. Transport and Entrainment in the Red Sea Outflow Plume SILVIA MATT AND WILLIAM E. JOHNS

    E-Print Network [OSTI]

    Miami, University of

    Transport and Entrainment in the Red Sea Outflow Plume SILVIA MATT AND WILLIAM E. JOHNS Division, it entrains significantly less-dense near-surface water, which itself varies on seasonal time scales. High entrainment of Gulf of Aden Water. The outflow transport exhibits a maximum in winter of about 0.29 Sv (Sv 106

  6. Effect of dissolved oxygen on stomach evacuation rate of juvenile red drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Becerra Illingworth, Jorge Alberto

    1998-01-01

    Juvenile red drum (Sciaenops ocellatus) weighing 19,7[]2.5 g, and acclimated to 10 ppt salinity and 25[]1[]C, were subjected to one of three dissolved oxygen (DO) regimes-- 7.5, 4.5, and 2.7[]0.5 mg O? 1?¹ -- after consuming pelleted feed...

  7. Fertilization of Red Maple (Acer rubrum) and Littleleaf Linden (Tilia cordata) Trees at Recommended Rates Does

    E-Print Network [OSTI]

    Virginia Tech

    -and-burlapped red maple (Acer rubrum) and littleleaf linden (Tilia cordata) were planted into a relatively infertile or not irrigated during 3 years. An additional treatment of an unirrigated, split (spring/fall) fertilizer on growth in a relatively infertile silt loam soil, and plants were not harmed by quick- release fertilizers

  8. Electrochemical formation of field emitters

    DOE Patents [OSTI]

    Bernhardt, A.F.

    1999-03-16

    Electrochemical formation of field emitters, particularly useful in the fabrication of flat panel displays is disclosed. The fabrication involves field emitting points in a gated field emitter structure. Metal field emitters are formed by electroplating and the shape of the formed emitter is controlled by the potential imposed on the gate as well as on a separate counter electrode. This allows sharp emitters to be formed in a more inexpensive and manufacturable process than vacuum deposition processes used at present. The fabrication process involves etching of the gate metal and the dielectric layer down to the resistor layer, and then electroplating the etched area and forming an electroplated emitter point in the etched area. 12 figs.

  9. Adaptive Optics in Star Formation

    E-Print Network [OSTI]

    Wolfgang Brandner

    2003-09-29

    Over the past ten years, the concept of adaptive optics has evolved from early experimental stages to a standard observing tool now available at almost all major optical and near-infrared telescope facilities. Adaptive optics will also be essential in exploiting the full potential of the large optical/infrared interferometers currently under construction. Both observations with high-angular resolution and at high contrast, and with a high point source sensitivity are facilitated by adaptive optics. Among the areas which benefit most from the use of adaptive optics are studies of the circumstellar environment (envelopes, disks, outflows), substellar companions and multiple systems, and dense young stellar populations. This contribution highlights some of the recent advances in star formation studies facilitated by adaptive optics, and gives a brief tutorial on optimized observing and data reduction strategies.

  10. Formation of helical ion chains

    E-Print Network [OSTI]

    Ramil Nigmatullin; Adolfo del Campo; Gabriele De Chiara; Giovanna Morigi; Martin B. Plenio; Alex Retzker

    2015-08-25

    We study the nonequilibrium dynamics of the linear to zigzag structural phase transition exhibited by an ion chain confined in a trap with periodic boundary conditions. The transition is driven by reducing the transverse confinement at a finite quench rate, which can be accurately controlled. This results in the formation of zigzag domains oriented along different transverse planes. The twists between different domains can be stabilized by the topology of the trap and under laser cooling the system has a chance to relax to a helical chain with nonzero winding number. Molecular dynamics simulations are used to obtain a large sample of possible trajectories for different quench rates. The scaling of the average winding number with different quench rates is compared to the prediction of the Kibble-Zurek theory, and a good quantitative agreement is found.

  11. Methanol Masers and Star Formation

    E-Print Network [OSTI]

    A. M. Sobolev; A. B. Ostrovskii; M. S. Kirsanova; O. V. Shelemei; M. A. Voronkov; A. V. Malyshev

    2006-01-12

    Methanol masers which are traditionally divided into two classes provide possibility to study important parts of the star forming regions: Class~II masers trace vicinities of the massive YSOs while class~I masers are likely to trace more distant parts of the outflows where newer stars can form. There are many methanol transitions which produce observed masers. This allows to use pumping analysis for estimation of the physical parameters in the maser formation regions and its environment, for the study of their evolution. Extensive surveys in different masing transitions allow to conclude on the values of the temperatures, densities, dust properties, etc. in the bulk of masing regions. Variability of the brightest masers is monitored during several years. In some cases it is probably caused by the changes of the dust temperature which follow variations in the brightness of the central YSO reflecting the character of the accretion process. A unified catalogue of the class II methanol masers consisting of more than 500 objects is compiled. Analysis of the data shows that: physical conditions within the usual maser source vary considerably; maser brightness is determined by parameters of some distinguished part of the object - maser formation region; class II methanol masers are formed not within the outflows but in the regions affected by their propagation. It is shown that the "near" solutions for the kinematic distances to the sources can be used for statistical analysis. The luminosity function of the 6.7 GHz methanol masers is constructed. It is shown that improvement of the sensitivity of surveys can increase number of detected maser sources considerably.

  12. Hot Coal for Christmas: Dust Formation in the Swept-Up Shell Around The Peculiar Type Ib Supernova 2006jc

    E-Print Network [OSTI]

    Smith, Nathan; Filippenko, Alexei V

    2007-01-01

    We present evidence for the formation of dust grains in an unusual Type Ib SN based on late-time spectra of SN 2006jc. The progenitor suffered a giant outburst qualitatively similar to those seen in LBVs just 2 years prior to the SN, and we speculate that the dust formation we observe is an indirect consequence of that event. The key evidence for dust formation seen in our optical spectra is (1) the appearance of a strong continuum emission source at red wavelengths, and (2) fading of the redshifted sides of narrow HeI emission lines. These two observed characteristics provide the strongest case yet for dust formation in any Type Ib/c SN. Both developments occurred simultaneously between 51 and 75 days after peak brightness, which is quick compared to other dusty SNe. The high temperature of the dust implies carbon and not silicates, and we describe how infrared photometry may test this conjecture. Geometric considerations indicate dust formation occurring in the dense gas swept-up by the forward shock, and n...

  13. THE DEEP2 GALAXY REDSHIFT SURVEY: CLUSTERING DEPENDENCE ON GALAXY STELLAR MASS AND STAR FORMATION RATE AT z {approx} 1

    SciTech Connect (OSTI)

    Mostek, Nick; Coil, Alison L.; Cooper, Michael; Davis, Marc; Newman, Jeffrey A.; Weiner, Benjamin J.

    2013-04-10

    We present DEEP2 galaxy clustering measurements at z {approx} 1 as a function of stellar mass, star formation rate (SFR), and specific SFR (sSFR). We find a strong positive correlation between stellar mass and clustering amplitude on 1-10 h {sup -1} Mpc scales for blue, star-forming galaxies with 9.5 < log(M{sub *}/M{sub Sun }) < 11 and no dependence for red, quiescent galaxies with 10.5 < log(M{sub *}/M{sub Sun }) < 11.5. Using recently re-calibrated DEEP2 SFRs from restframe B-band magnitude and optical colors, we find that within the blue galaxy population at z {approx} 1 the clustering amplitude increases strongly with increasing SFR and decreasing sSFR. For red galaxies there is no significant correlation between clustering amplitude and either SFR or sSFR. Blue galaxies with high SFR or low sSFR are as clustered on large scales as red galaxies. We find that the clustering trend observed with SFR can be explained mostly, but not entirely, by the correlation between stellar mass and clustering amplitude for blue galaxies. We also show that galaxies above the star-forming 'main sequence' are less clustered than galaxies below the main sequence, at a given stellar mass. These results are not consistent with the high-sSFR population being dominated by major mergers. We also measure the clustering amplitude on small scales ({<=}0.3 h {sup -1} Mpc) and find an enhanced clustering signal relative to the best-fit large-scale power law for red galaxies with high stellar mass, blue galaxies with high SFR, and both red and blue galaxies with high sSFR. The increased small-scale clustering for galaxies with high sSFRs is likely linked to triggered star formation in interacting galaxies. These measurements provide strong constraints on galaxy evolution and halo occupation distribution models at z {approx} 1.

  14. Cold tolerance of red drum (Sciaenops ocellatus) and thermal-refuge technology to protect this species from cold-kill in aquaculture ponds 

    E-Print Network [OSTI]

    Dorsett, Paul Wesley

    1994-01-01

    The need to protect red drum in aquaculture ponds from cold-kill led to the development of thermalrefuge technology for overwintering these fish. Successive versions of an experimental thermal refuge were installed and operated in two adjacent red...

  15. Effects of prebiotics on growth performance, nutrient utilization and the gastrointestinal tract microbial community of hybrid striped bass (Morone chrysops x M. saxatilis) and red drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Burr, Gary Stephen

    2009-05-15

    ), and inulin/ fructooligosaccharide (FOS)--on the gastrointestinal (GI) tract’s microbial community in hybrid striped bass and red drum. The first in vitro experiment applied denaturing gradient gel electrophoresis (DGGE) to examine responses of red drum GI...

  16. A seismic approach to testing different formation channels of subdwarf B stars

    E-Print Network [OSTI]

    Haili Hu; M. -A. Dupret; C. Aerts; G. Nelemans; S. D. Kawaler; A. Miglio; J. Montalban; R. Scuflaire

    2008-08-22

    There are many unknowns in the formation of subdwarf B stars. Different formation channels are considered to be possible and to lead to a variety of helium-burning subdwarfs. All seismic models to date, however, assume that a subdwarf B star is a post-helium-flash-core surrounded by a thin inert layer of hydrogen. We examine an alternative formation channel, in which the subdwarf B star originates from a massive (>~2 Msun) red giant with a non-degenerate helium-core. Although these subdwarfs may evolve through the same region of the log g-Teff diagram as the canonical post-flash subdwarfs, their interior structure is rather different. We examine how this difference affects their pulsation modes and whether it can be observed. Using detailed stellar evolution calculations we construct subdwarf B models from both formation channels. The iron accumulation in the driving region due to diffusion, which causes the excitation of the modes, is approximated by a Gaussian function. The pulsation modes and frequencies are calculated with a non-adiabatic pulsation code. A detailed comparison of two subdwarf B models from different channels, but with the same log g and Teff, shows that their mode excitation is different. The excited frequencies are lower for the post-flash than for the post-non-degenerate subdwarf B star. This is mainly due to the differing chemical composition of the stellar envelope. A more general comparison between two grids of models shows that the excited frequencies of most post-non-degenerate subdwarfs cannot be well-matched with the frequencies of post-flash subdwarfs. In the rare event that an acceptable seismic match is found, additional information, such as mode identification and log g and Teff determinations, allows us to distinguish between the two formation channels.

  17. Radio Triggered Star Formation in Cooling Flows

    E-Print Network [OSTI]

    B. R. McNamara

    1999-11-08

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

  18. Methanol masers : Reliable tracers of the early stages of high-mass star formation

    E-Print Network [OSTI]

    S. P. Ellingsen

    2005-10-07

    The GLIMPSE and MSX surveys have been used to examine the mid-infrared properties of a statistically complete sample of 6.7 GHz methanol masers. The GLIMPSE point sources associated with methanol masers are clearly distinguished from the majority, typically having extremely red mid-infrared colors, similar to those expected of low-mass class 0 young stellar objects. The intensity of the GLIMPSE sources associated with methanol masers is typically 4 magnitudes brighter at 8.0 micron than at 3.6 micron. Targeted searches towards GLIMPSE point sources with [3.6]-[4.5] > 1.3 and an 8.0 micron magnitude less than 10 will detect more than 80% of class II methanol masers. Many of the methanol masers are associated with sources within infrared dark clouds (IRDC) which are believed to mark regions where high-mass star formation is in its very early stages. The presence of class II methanol masers in a significant fraction of IRDC suggests that high-mass star formation is common in these regions. Different maser species are thought to trace different evolutionary phases of the high-mass star formation process. Comparison of the properties of the GLIMPSE sources associated with class II methanol masers and other maser species shows interesting trends, consistent with class I methanol masers tracing a generally earlier evolutionary phase and OH masers tracing a later evolutionary phase.

  19. Floating insulated conductors for heating subsurface formations

    DOE Patents [OSTI]

    Burns, David; Goodwin, Charles R.

    2014-07-29

    A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.

  20. The massive star population in M101. II. Spatial variations in the recent star formation history

    SciTech Connect (OSTI)

    Grammer, Skyler; Humphreys, Roberta M. E-mail: roberta@umn.edu

    2014-09-01

    We investigate star formation history (SFH) as a function of radius in M101 using archival Hubble Space Telescope Advanced Camera for Surveys photometry. We derive the SFH from the resolved stellar populations in five 2' wide annuli. Binning the SFH into time frames corresponding to stellar populations traced by H?, far-ultraviolet, and near-ultraviolet emission, we find that the fraction of stellar populations young enough to contribute in H? is 15%-35% in the inner regions, compared to less than 5% in the outer regions. This provides a sufficient explanation for the lack of H? emission at large radii. We also model the blue to red supergiant ratio in our five annuli, examine the effects that a metallicity gradient and variable SFH have on the predicted ratios, and compare to the observed values. We find that the radial behavior of our modeled blue to red supergiant ratios is highly sensitive to both spatial variations in the SFH and metallicity. Incorporating the derived SFH into modeled ratios, we find that we are able to reproduce the observed values at large radii (low metallicity), but at small radii (high metallicity) the modeled and observed ratios are discrepant.

  1. Heating systems for heating subsurface formations

    DOE Patents [OSTI]

    Nguyen, Scott Vinh (Houston, TX); Vinegar, Harold J. (Bellaire, TX)

    2011-04-26

    Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portion of the sealed conduit to change phase of the heat transfer fluid from a liquid to a vapor. The vapor in the sealed conduit rises in the sealed conduit, condenses to transfer heat to the formation and returns to the conduit portion as a liquid.

  2. Treating tar sands formations with dolomite

    DOE Patents [OSTI]

    Vinegar, Harold J.; Karanikas, John Michael

    2013-10-15

    A method for treating a karsted formation containing heavy hydrocarbons and dolomite includes providing heat to at least part of one or more karsted layers in the formation from one or more heaters located in the karsted layers. A temperature in at least one of the karsted layers is allowed to reach a decomposition temperature of dolomite in the formation. The dolomite is allowed to decompose and at least some hydrocarbons are produced from at least one of the karsted layers of the formation.

  3. New Particle Formation Study Final Campaign Report

    SciTech Connect (OSTI)

    Smith, JN; McMurry, PH

    2015-01-01

    The scientific foci of the New Particle Formation Study were the formation and evolution of atmospheric aerosols and the impacts of newly formed particles on cloud processes. Specifically, we planned to: (1) to identify the species and mechanisms responsible for the initial steps of new particle formation, i.e., the formation of thermodynamically stable clusters; (2) investigate the role of acid-base chemistry in new particle growth through measurements of ammonia and amines as well as organic and inorganic acids in both atmospheric nanoparticles and the gas phase; (3) investigate the contribution of other surface area or volume-controlled processes to nanoparticle formation and growth; (4) create a comprehensive dataset related to new particle formation and growth that can be used as input for our own thermodynamic models as well as the modeling efforts by our Department of Energy (DOE) Aerosol Life Cycle working group collaborators; (5) characterize the increase of the number and activity of cloud condensation nuclei (CCN) due to particle formation and growth; (6) determine the regional extent of new particle formation to address the role that atmospheric transport plays in determining the impacts, if any, of new particle formation on cloud number and properties.

  4. Hydrogen Adsorption Induces Interlayer Carbon Bond Formation...

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

    Hydrogen Adsorption Induces Interlayer Carbon Bond Formation in Supported Few-Layer Graphene Friday, February 28, 2014 Among the allotropes of carbon, diamond has some of the most...

  5. Heating tar sands formations to visbreaking temperatures

    DOE Patents [OSTI]

    Karanikas, John Michael (Houston, TX); Colmenares, Tulio Rafael (Houston, TX); Zhang, Etuan (Houston, TX); Marino, Marian (Houston, TX); Roes, Augustinus Wilhelmus Maria (Houston, TX); Ryan, Robert Charles (Houston, TX); Beer, Gary Lee (Houston, TX); Dombrowski, Robert James (Houston, TX); Jaiswal, Namit (Houston, TX)

    2009-12-22

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average temperature of between 200.degree. C. and 240.degree. C., which results in visbreaking of at least some hydrocarbons in the section. At least some visbroken hydrocarbon fluids may be produced from the formation.

  6. Standard Format and Content for Emergency Plans

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

    1997-08-21

    This volume addresses recommended emergency plan format and content for Operational Emergency Base Programs and Operational Emergency Hazardous Material Programs. Canceled by DOE G 151.1-3.

  7. http://biotech.nature.com JULY 2001 VOLUME 19 nature biotechnology Multiphoton-evoked color change of DsRed as an

    E-Print Network [OSTI]

    Parker, Ian

    Red, thereby enhancing emission from the immature green form through reduction of fluorescence resonance energyRed from red to green when viewed subsequently by conventional (one-photon) epifluores- cence transfer (FRET). The "greening" effect occurs in live mammalian cells at the cellular and subcellular

  8. Format requirements of thermal neutron scattering data in a nuclear data format to succeed the ENDF format

    SciTech Connect (OSTI)

    Brown, D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2014-03-31

    In November 2012, the Working Party on Evaluation Cooperation Subgroup 38 (WPEC-SG38) began with the task of developing a nuclear data format and supporting infrastructure to replace the now nearly 50 year old ENDF format. The first step in this process is to develop requirements for the new format and infrastructure. In this talk, I will review the status of ENDF's Thermal Scattering Law (TSL) formats as well as support for this data in the GND format (from which the new format is expected to evolve). Finally, I hope to begin a dialog with members of the thermal neutron scattering community so that their data needs can be accurately and easily accommodated by the new format and tools, as captured by the requirements document. During this discussion, we must keep in mind that the new tools and format must; Support what is in existing data files; Support new things we want to put in data files; and Be flexible enough for us to adapt it to future unanticipated challenges.

  9. Chaos in Terrestrial Planet Formation

    E-Print Network [OSTI]

    Volker Hoffmann; Simon L. Grimm; Ben Moore; Joachim Stadel

    2015-08-04

    Terrestrial planets are thought to be the result of a vast number of gravitational interactions and collisions between smaller bodies. We use numerical simulations to show that practically identical initial conditions result in a wide array of final planetary configurations. This highly chaotic behaviour questions the predictability of different scenarios for the formation and evolution of our solar system and planetary systems in general. However, multiple realisations of the same initial conditions can be used to predict certain global statistics. We present two sets of numerical experiments that quantify this behaviour. Firstly, we demonstrate that simulations with slightly displaced particles are completely divergent after ~500 years, irrespective of initial displacement, particle number, and code accuracy. If a single planetesimal is moved by less than one millimetre, then a different set of planets results -- this timescale for chaotic divergence decreases with increasing particle number. Secondly, we show final planetary configurations of initially similar simulations with and without giant planets after evolving them for ~148 Myr. We find that the same simulations including giant planets tend to generate higher mass planets at lower semi-major axes than simulations without gas giants. This prediction can be tested with forthcoming observational programs. By extracting outliers in the observations, we cautiously predict that Kepler-10, Kepler-9, 61 Vir, HD 134060, and HD 51608 may host as yet undetected giant planets.

  10. FIRE4, LiteRed and accompanying tools to solve integration by parts relations

    E-Print Network [OSTI]

    A. V. Smirnov; V. A. Smirnov

    2013-02-24

    New features of the Mathematica code FIRE are presented. In particular, it can be applied together with the recently developed code LiteRed by Lee in order to provide an integration by parts reduction to master integrals for quite complicated families of Feynman integrals. As as an example, we consider four-loop massless propagator integrals for which LiteRed provides reduction rules and FIRE assists to apply these rules. So, as a by-product one obtains a four-loop variant of the well-known three-loop computer code MINCER. We also describe various ways to find additional relations between master integrals for several families of Feynman integrals.

  11. OY Car During Normal Outburst: Balmer Emission From The Red Star And The Gas Stream

    E-Print Network [OSTI]

    E. T. Harlaftis; T. R. Marsh

    1995-03-07

    We present observations of OY Car, obtained with the Anglo-Australian Telescope, during a normal outburst in August 1991. Two sinusoidal components are resolved in the H$\\beta$ trailed spectra and we determine the location of the narrow component to be on the secondary star with a maximum contributed flux of ~2.5 per cent to the total flux. Imaging of the line distribution reveals that the other emission component is associated with the gas stream. This follows a velocity close to the ballistic one from the red star to a distance of ~0.5 R$_{L_{1}}$ from the white dwarf. This emission penetrates the accretion disc (from 0.5--0.1 R$_{L_{1}}$), with a velocity now closer (but lower) to the keplerian velocities along the path of the gas stream. We finally discuss the implications of having observed simultaneously line emission from the gas stream and the red star during outburst.

  12. OY Car in Outburst: Balmer emission from the red star and the gas stream

    E-Print Network [OSTI]

    E. T. Harlaftis; T. R. Marsh

    1995-10-04

    We present observations of OY Car, obtained with the Anglo-Australian telescope, during a normal outburst in 1991. Two sinusoidal components are resolved in the Hbeta trailed spectra and we determine the location of the narrow component to be on the secondary star with a maximum contributed flux of ~2.5 per cent to the total flux. Imaging of the line distribution reveals that the other emission component is associated with the gas stream. This follows a velocity close to the ballistic one from the red star to a distance of ~0.5 R_L1 from the white dwarf. Then. its kinematics changes from 0.5-0.2 R_L1 (accretion disc) following velocities now closer to (but lower than) the keplerian velocities along the path of the gas stream. We finally dicsuss the implications of having observed simultaneously line emission from the gas stream and the red star during outburst.

  13. Shape reconstruction and height fluctuations of red blood cells using defocusing microscopy

    E-Print Network [OSTI]

    Siman, L; Amaral, F T; Agero, U; Mesquita, O N

    2014-01-01

    In this paper the bright-field defocusing microscopy (DM) technique is presented. DM is able to obtain quantitative information of each plane/surface of pure phase objects, as live unlabeled cells, and its application to red blood cells (RBCs) is demonstrated. Based on contrast, simple methods to obtain thickness profile and three dimensional (3D) total reconstruction of RBCs are proposed and the actual height profiles of upper and lower surface-membranes (lipid bilayer$/$cytoskeleton) of discocyte and stomatocyte red cells are presented as examples. In addition, using the mean square contrast fluctuation and modeling the RBC membranes fluctuations spectra as dependent of a bending modulus $(\\kappa_c)$, a surface tension $(\\sigma)$ and a confining potential $(\\gamma)$ term, slowly varying quantities along the cell radius, a genetic algorithm (GA) is used and the radial height fluctuations of each surface-membrane are accessed, separately. The radial behaviors of $\\kappa_c$, $\\sigma$ and $\\gamma$ are also obta...

  14. Red Supergiants as Cosmic Abundance Probes: The Sculptor Galaxy NGC 300

    E-Print Network [OSTI]

    Gazak, J Zachary; Evans, Chris; Patrick, Lee; Davies, Ben; Bergemann, Maria; Plez, Bertrand; Bresolin, Fabio; Bender, Ralf; Wegner, Michael; Bonanos, Alceste Z; Williams, Stephen J

    2015-01-01

    We present a quantitative spectroscopic study of twenty-seven red supergiants in the Sculptor Galaxy NGC 300. J-band spectra were obtained using KMOS on the VLT and studied with state of the art synthetic spectra including NLTE corrections for the strongest diagnostic lines. We report a central metallicity of [Z]= -0.03 +/- 0.05 with a gradient of -0.083 +/- 0.014 [dex/kpc], in agreement with previous studies of blue supergiants and H II-region auroral line measurements. This result marks the first application of the J-band spectroscopic method to a population of individual red supergiant stars beyond the Local Group of galaxies and reveals the great potential of this technique.

  15. Relationship of Course Woody Debris to Red-Cockaded Woodpecker Prey Diversity and Abundance

    SciTech Connect (OSTI)

    Horn, G.S.

    1999-09-03

    The abundance of diversity of prey commonly used by the red-cockaded woodpecker were monitored in experimental plots in which course woody debris was manipulated. In one treatment, all the woody debris over four inches was removed. In the second treatment, the natural amount of mortality remained intact. The overall diversity of prey was unaffected; however, wood roaches were significantly reduced by removal of woody debris. The latter suggests that intensive utilizations or harvesting practices may reduce foraging.

  16. Water Balance, Salt Loading, and Salinity Control Options of Red Bluff Reservoir, Texas 

    E-Print Network [OSTI]

    Miyamoto, S.; Yuan, Fasong; Anand, Shilpa

    2007-01-01

    stream_source_info tr298.pdf.txt stream_content_type text/plain stream_size 85293 Content-Encoding UTF-8 stream_name tr298.pdf.txt Content-Type text/plain; charset=UTF-8 TR- 298 2007 Water Balance, Salt Loading... Texas Water Resources Institute Texas A&M University WATER BALANCE, SALT LOADING, AND SALINITY CONTROL OPTIONS OF RED BLUFF RESERVOIR, TEXAS S. Miyamoto, Fasong Yuan, and Shilpa Anand...

  17. Blood pressure and red blood cell magnesium, potassium, and calcium responses to dietary fats 

    E-Print Network [OSTI]

    Wehrman, Noreen Elaine

    1993-01-01

    influences the activities of several membrane transport systems, including the sodium pump which exchanges three sodium ions for two potassium ions, the Na+-K+-Cl cotransport system which moves these three ions across the cell membrane, and the K... for the degree of MASTER OF SCIENCE August 1993 Major Subject: Nutrition BLOOD PRESSURE AND RED BLOOD CELL MAGNESIUM, POTASSIUM, AND CALCIUM RESPONSES TO DIETARY FATS A Thesis by NOREEN ELAINE WEHRMAN Submitted to Texas A&M University in partial...

  18. Estimated IR and phosphorescence emission fluxes for specific Polycyclic Aromatic Hydrocarbons in the Red Rectangle

    E-Print Network [OSTI]

    G. Mulas; G. Malloci; C. Joblin; D. Toublanc

    2005-09-20

    Following the tentative identification of the blue luminescence in the Red Rectangle by Vijh et al. (2005), we compute absolute fluxes for the vibrational IR emission and phosphorescence bands of three small polycyclic aromatic hydrocarbons. The calculated IR spectra are compared with available ISO observations. A subset of the emission bands are predicted to be observable using presently available facilities, and can be used for an immediate, independent, discriminating test on their alleged presence in this well-known astronomical object.

  19. Red River Hot Springs Pool & Spa Low Temperature Geothermal Facility | Open

    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 onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy MarketingNewOpenRecycledMesa, Arizona:Red

  20. Autonomous Helicopter Formation using Model Predictive Control

    E-Print Network [OSTI]

    Sastry, S. Shankar

    Autonomous Helicopter Formation using Model Predictive Control Hoam Chung and S. Shankar Sastry for teams of helicopters. However, the potential for accidents is greatly increased when helicopter teams to the problem of helicopter formations comprised of heterogenous vehicles. The disturbance attenuation property

  1. FAINT RADIO SOURCES AND STAR FORMATION HISTORY

    E-Print Network [OSTI]

    Waddington, Ian

    FAINT RADIO SOURCES AND STAR FORMATION HISTORY Deborah B. Haarsma 1 , R. Bruce Partridge 1 , Ian 85287­1504 USA Abstract. Faint extragalactic radio sources provide important information about the global history of star formation. Sensitive radio observations of the Hubble Deep Field and other fields

  2. Methods for forming wellbores in heated formations

    DOE Patents [OSTI]

    Guimerans, Rosalvina Ramona; Mansure, Arthur James

    2012-09-25

    A method for forming a wellbore in a heated formation includes flowing liquid cooling fluid to a bottom hole assembly in a wellbore in a heated formation. At least a portion of the liquid cooling fluid is vaporized at or near a region to be cooled. Vaporizing the liquid cooling fluid absorbs heat from the region to be cooled.

  3. Robot Behavior Adaptation for Formation Maintenance

    E-Print Network [OSTI]

    López-Sánchez, Maite

    1 Robot Behavior Adaptation for Formation Maintenance Maite López-Sánchez maite@maia.ub.es WAI): ­1 or 2 reference robots to follow ­keeping fixed angle (formation property) ­and fixed distance d (separation distance) · related to robot visibility range, speed or reaction capabilities Basic behaviors I

  4. First Structure Formation and the First Stars

    E-Print Network [OSTI]

    Michael L. Norman; Tom Abel; Greg Bryan

    2000-05-11

    We discuss the results of recent 3D simulations of first structure formation in relationship to the formation of the first stars. On the basis of a new, high-resolution AMR simulation (spatial dynamic range = 30,000,000), we conclude that the first stars are likely to be massive.

  5. Internal rotation of the red-giant star KIC 4448777 by means of asteroseismic inversion

    E-Print Network [OSTI]

    Di Mauro, M P; Cardini, D; Stello, D; Christensen-Dalsgaard, J; Dziembowski, W A; Paterno', L; Beck, P G; Bloemen, S; Davies, G R; De Smedt, K; Elsworth, Y; Garcia, R A; Hekker, S; Mosser, B; Tkachenko, A

    2015-01-01

    In this paper we study the dynamics of the stellar interior of the early red-giant star KIC 4448777 by asteroseismic inversion of 14 splittings of the dipole mixed modes obtained from {\\it Kepler} observations. In order to overcome the complexity of the oscillation pattern typical of red-giant stars, we present a procedure which involves a combination of different methods to extract the rotational splittings from the power spectrum. We find not only that the core rotates faster than the surface, confirming previous inversion results generated for other red giants (Deheuvels et al. 2012,2014), but we also estimate the variation of the angular velocity within the helium core with a spatial resolution of $\\Delta r=0.001R$ and verify the hypothesis of a sharp discontinuity in the inner stellar rotation (Deheuvels et al. 2014). The results show that the entire core rotates rigidly with an angular velocity of about $\\langle\\Omega_c/2\\pi\\rangle=748\\pm18$~nHz and provide evidence for an angular velocity decrease thro...

  6. A z ? 5.7 Ly? emission line with an ultrabroad red wing

    SciTech Connect (OSTI)

    Yang, Huan; Wang, JunXian [CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Hefei, Anhui 230026 (China); Zheng, Zhen-Ya; Malhotra, Sangeeta; Rhoads, James E. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 (United States); Infante, Leopoldo, E-mail: yanghuan@mail.ustc.edu.cn, E-mail: jxw@mail.ustc.edu.cn, E-mail: zzheng13@asu.edu, E-mail: smalhotr@asu.edu, E-mail: james.rhoads@asu.edu, E-mail: linfante@astro.puc.cl [Institute of Astrophysics, Ponticia Universidad Catolica, Santiago (Chile)

    2014-03-20

    Using the Ly? emission line as a tracer of high-redshift, star-forming galaxies, hundreds of Ly? emission line galaxies (LAEs) at z > 5 have been detected. These LAEs are considered to be low-mass young galaxies, critical to the re-ionization of the universe and the metal enrichment of the circumgalactic medium (CGM) and the intergalactic medium (IGM). It is assumed that outflows in LAEs can help both ionizing photons and Ly? photons escape from galaxies. However, we still know little about the outflows in high-redshift LAEs due to observational difficulties, especially at redshift >5. Models of Ly? radiative transfer predict asymmetric Ly? line profiles with broad red wings in LAEs with outflows. Here, we report a z ? 5.7 Ly? emission line with a broad red wing extending to >1000 km s{sup –1} relative to the peak of Ly? line, which has been detected in only a couple of z > 5 LAEs until now. If the broad red wing is ascribed to gas outflow instead of active galactic nucleus activity, the outflow velocity could be larger than the escape velocity (?500 km s{sup –1}) of a typical halo mass of z ? 5.7 LAEs, which is consistent with the idea that outflows in LAEs disperse metals to CGM and IGM.

  7. The red-cockaded woodpecker on the Savannah River Site: Aspects of reproductive success.

    SciTech Connect (OSTI)

    Johnston, Peter A.; Imm, Donald, W.; Jarvis, William L.

    2004-12-31

    Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 5. Status and Trends of Populations. Pp 224-229. Abstract: The red-cockaded woodpecker (Picoides borealis) population on the Savannah River Site has been closely monitored and studied over the last 17 years. In 1985, the USDA Forest Service Southern Research Station was given responsibility to study and manage this population in an effort to prevent its extirpation. In December 1985, there were only 4 individuals on the site: 1 pair and 2 solitary males. The population had increased to a total of 175 individuals in 42 active clusters in 2002. Although this represents a very successful recovery effort, there has been substantial annual variation in nesting survival from banding to fledging. Data were analyzed to more completely understand the factors affecting reproduction. No significant effects of age of the breeding male and female, years paired, number of helpers, habitat quality, number of nestings, and time of nest initiation were found when comparing reproductive success in 117 nesting attempts from 1999 to 2002. However, the number of neighboring groups had a direct effect on mortality rates, possibly demonstrating the importance of cluster spacing.

  8. 1.6 Policy Development & Format Page 1 of 3 Policy Development & Format

    E-Print Network [OSTI]

    Hung, I-Kuai

    1.6 Policy Development & Format Page 1 of 3 Policy Development & Format Original Implementation: July 16, 2013 Last Revision: None A. POLICY FORMAT Each policy will have a title that is concise but descriptive. Each policy is indexed with a numeric indicator which indicates the position of the entry within

  9. Sequentially Triggered Star Formation in OB Associations

    E-Print Network [OSTI]

    Thomas Preibisch; Hans Zinnecker

    2006-10-27

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

  10. Predicting the Potential Worldwide Distribution of the Red Palm Weevil Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) using Ecological Niche Modeling

    E-Print Network [OSTI]

    Fiaboe, K. K. M.; Peterson, A. Townsend; Kairo, M. T. K.; Roda, A. L.

    2012-09-01

    The red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae), ranks among the most important pests of various palm species. The pest originates from South and Southeast Asia, but has expanded ...

  11. Applying a microfluidic 'deformability cytometry' to measure stiffness of malaria-infected red blood cells at body and febrile temperatures

    E-Print Network [OSTI]

    Huang, Sha, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    Red blood cells (RBCs) undergo repeated deformation as they traverse blood vessel, capillaries and splenic cords; RBC deformability is therefore crucial in maintaining normal blood circulation. During falciparum malaria, ...

  12. Transferable rights in a recreational fishery: an application to the red snapper fishery in the Gulf of Mexico 

    E-Print Network [OSTI]

    Kim, Hwa Nyeon

    2007-09-17

    Overfishing of red snapper in the Gulf of Mexico has significantly increased lately. A major regulation to reduce the overfishing is Total Allowable Catches (TAC) in combination with a season closure. The restrictions on ...

  13. Infra red spectroscopy, flash pyrolysis, thermally assisted hydrolysis and methylation (THM) in the presence of tetramethylammonium hydroxide

    E-Print Network [OSTI]

    Infra red spectroscopy, flash pyrolysis, thermally assisted hydrolysis and methylation (THM to sporopollenin or algaenan. This is in agreement with flash pyrolysis­gas chromatography­mass spectrometry (py

  14. Seawater Osmium Isotope Records from Pacific ODP and IODP Sites- Refining the Paleogene Curve and Dating Red Clay Sequences 

    E-Print Network [OSTI]

    Rolewicz, Zachary Louis

    2013-02-04

    exclusively of pelagic clay with little existing age control. Recent work indicates that seawater Osmium (Os) isotope analyses provide useful age control for red clay sequences due to its relatively long residence time compared to oceanic mixing. The drawback...

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

    E-Print Network [OSTI]

    Obeng-Boampong, Kwaku Oduro

    2005-11-01

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

  16. Red imported fire ant impact on native ants and litter removal in the post oak savannah of central Texas 

    E-Print Network [OSTI]

    Bedford, Theresa Louise

    2006-08-16

    I examined the impacts of the invasive red imported fire ant (RIFA, Solenopsis invicta) on native ants (Monomorium minimum, Paratrechina sp., S. krockowi, Pheidole metallescens, Forelius pruinosus, and Camponotus americanus) and litter removal in a...

  17. Red cell distribution width improves the simplified acute physiology score for risk prediction in unselected critically ill patients

    E-Print Network [OSTI]

    Hunzike, Sabina

    Introduction: Recently, red cell distribution width (RDW), a measure of erythrocyte size variability, has been shown to be a prognostic marker in critical illness. The aim of this study was to investigate whether adding ...

  18. Effects of storage on irradiated red blood cells: An in-vitro and in-vivo study. Master's thesis

    SciTech Connect (OSTI)

    Knoll, S.E.

    1991-08-01

    Irradiation of red blood cell units has recently become a topic of special concern as the result of increasing reports of graft versus host disease in immunocompetent blood transfusion recipients. This study was designed to evaluate the potassium elevations observed in stored irradiated red blood cells and to evaluate the in vivo survival of stored irradiated red blood cells using a dog model. In the in vitro study ten units of human CPDA-1 packed red blood cells were made into paired aliquots; one aliquot of each pair was irradiated with 3000 rads of gamma radiation and the potassium content measured at points throughout 35 days of storage. A significant increase in potassium levels in the irradiated aliquots was observed from the first day after irradiation and continued through the entire storage period.

  19. Baade's red sheet resolved into stars with HST in the Blue Compact Dwarf Galaxy VII Zw 403

    E-Print Network [OSTI]

    R. E. Schulte-Ladbeck; M. M. Crone; U. Hopp

    1997-08-26

    HST WFPC2 observations of the nearby Blue Compact Dwarf Galaxy VII~Zw~403 (= UGC 6456) resolve single stars down to M$_I$$\\approx$-2.5, deep enough to identify red giants. This population has a more uniform spatial distribution than the young main-sequence stars and supergiants, forming the structure known as "Baade's red sheet". We conclude that VII~Zw~403 is not a primeval galaxy.

  20. The Phoenix Deep Survey: The star-formation rates and the stellar masses of EROs

    E-Print Network [OSTI]

    A. Georgakakis; A. M. Hopkins; J. Afonso; M. Sullivan; B. Mobasher; L. E. Cram

    2005-12-06

    We estimate the star-formation rates and the stellar masses of the Extremely Red objects (EROs) detected in a 180arcmin2 Ks-band survey (Ks~20mag). This sample is complemented by sensitive 1.4GHz radio observations (12micro-Jy; 1sigma rms) and multiwaveband photometric data (UBVRIJ) as part of the Phoenix Deep Survey. For bright K4mag; total of 177) we use photometric methods to discriminate dust-enshrouded active systems from early-type galaxies and to constrain their redshifts. Radio stacking is then employed to estimate mean radio flux densities of 8.6 (3sigma) and 6.4micro-Jy (2.4sigma) for the dusty and early-type subsamples respectively. Assuming that dust enshrouded active EROs are powered by star-formation the above radio flux density at the median redshift of z=1 translates to a radio luminosity of 4.5e22W/Hz and a star-formation rate of SFR=25Mo/yr. Combining this result with photometric redshift estimates we find a lower limit to the star-formation rate density of ~0.02Mo/yr/Mpc^3 for the K5e10Mo. We also find that EROs represent a sizable fraction (~50%) of the number density of galaxies more massive than M=5e10Mo at z~1, with almost equal contributions from dusty and early types. Similarly, we find that EROs contribute about half of the mass density of the Universe at z~1 after taking into account incompleteness because of the limit K=19.5mag.

  1. Star Formation in the Local Milky Way

    E-Print Network [OSTI]

    Lada, Charles J

    2015-01-01

    Studies of molecular clouds and young stars near the sun have provided invaluable insights into the process of star formation. Indeed, much of our physical understanding of this topic has been derived from such studies. Perhaps the two most fundamental problems confronting star formation research today are: 1) determining the origin of stellar mass and 2) deciphering the nature of the physical processes that control the star formation rate in molecular gas. As I will briefly outline here, observations and studies of local star forming regions are making particularly significant contributions toward the solution of both these important problems.

  2. Loop formation in polymers in crowded environment

    E-Print Network [OSTI]

    K. Haydukivska; V. Blavatska

    2015-11-12

    We analyze the probability of a single loop formation in a long flexible polymer chain in disordered environment in $d$ dimensions. The structural defects are considered to be correlated on large distances $r$ according to a power law $\\sim r^{-a}$. Working within the frames of continuous chain model and applying the direct polymer renormalization scheme, we obtain the values of critical exponents governing the scaling of probabilities of loop formation with various positions along the chain as function of loops length. Our results quantitatively reveal that the presence of structural defects in environment decreases the probability of loop formation in polymer macromolecules.

  3. Carbon nanotube formation by laser direct writing

    SciTech Connect (OSTI)

    Wu, Y.-T.; Su, H.-C.; Tsai, C.-M.; Liu, K.-L.; Chen, G.-D.; Huang, R.-H.; Yew, T.-R.

    2008-07-14

    This letter presents carbon nanotube (CNT) formation by laser direct writing using 248 nm KrF excimer pulsed laser in air at room temperature, which was applied to irradiate amorphous carbon (a-C) assisted by Ni catalysts underneath for the transformation of carbon species into CNTs. The CNTs were synthesized under appropriate combination of laser energy density and a-C thickness. The growth mechanism and key parameters to determine the success of CNT formation were also discussed. The demonstration of the CNT growth by laser direct writing in air at room temperature opens an opportunity of in-position CNT formation at low temperatures.

  4. The NeXus data format

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

    Könnecke, Mark; Akeroyd, Frederick A.; Bernstein, Herbert J.; Brewster, Aaron S.; Campbell, Stuart I.; Clausen, Björn; Cottrell, Stephen; Hoffmann, Jens Uwe; Jemian, Pete R.; Männicke, David; et al

    2015-01-30

    NeXus is an effort by an international group of scientists to define a common data exchange and archival format for neutron, X-ray and muon experiments. NeXus is built on top of the scientific data format HDF5 and adds domain-specific rules for organizing data within HDF5 files, in addition to a dictionary of well defined domain-specific field names. The NeXus data format has two purposes. First, it defines a format that can serve as a container for all relevant data associated with a beamline. This is a very important use case. Second, it defines standards in the form of application definitionsmore »for the exchange of data between applications. NeXus provides structures for raw experimental data as well as for processed data.« less

  5. Mechanisms and Geochemical Models of Core Formation

    E-Print Network [OSTI]

    Rubie, David C

    2015-01-01

    The formation of the Earth's core is a consequence of planetary accretion and processes in the Earth's interior. The mechanical process of planetary differentiation is likely to occur in large, if not global, magma oceans created by the collisions of planetary embryos. Metal-silicate segregation in magma oceans occurs rapidly and efficiently unlike grain scale percolation according to laboratory experiments and calculations. Geochemical models of the core formation process as planetary accretion proceeds are becoming increasingly realistic. Single stage and continuous core formation models have evolved into multi-stage models that are couple to the output of dynamical models of the giant impact phase of planet formation. The models that are most successful in matching the chemical composition of the Earth's mantle, based on experimentally-derived element partition coefficients, show that the temperature and pressure of metal-silicate equilibration must increase as a function of time and mass accreted and so m...

  6. Electromagnetic formation flight dipole solution planning

    E-Print Network [OSTI]

    Schweighart, Samuel A. (Samuel Adam), 1977-

    2005-01-01

    Electromagnetic Formation Flight (EMFF) describes the concept of using electromagnets (coupled with reaction wheels) to provide all of the necessary forces and torques needed to maintain a satellite's relative position and ...

  7. Modeling deposit formation in diesel injector nozzle

    E-Print Network [OSTI]

    Sudhiesh Kumar, Chintoo

    2009-01-01

    Formation of deposit in the diesel injector nozzle affects the injection behavior and hinders performance. Under running condition, deposit precursors are washed away by the ensuing injection. However, during the cool down ...

  8. Electromagnetic formation flight of satellite arrays

    E-Print Network [OSTI]

    Kwon, Daniel W., 1980-

    2005-01-01

    Proposed methods of actuating spacecraft in sparse aperture arrays use propellant as a reaction mass. For formation flying systems, propellant becomes a critical consumable which can be quickly exhausted while maintaining ...

  9. Kinetics of acrylamide formation in potato chips 

    E-Print Network [OSTI]

    Granda, Claudia Esthela

    2006-08-16

    Acrylamide is considered a carcinogen in animals and a possible carcinogen in humans. It has been found in starch rich foods cooked at high temperatures. Vacuum frying (10 Torr) was studied as a possible alternative to reduce acrylamide formation...

  10. HYDROCARBON FORMATION ON POLYMER-SUPPORTED COBALT

    E-Print Network [OSTI]

    Benner, Linda S.

    2013-01-01

    NV~ August 25-29, 1980 HYDROCARBON FORMATION ON POLYMER-catalyzed reduction of CO to hydrocarbons Tropscb. Among theof CO to saturated linear hydrocarbons and appears to retain

  11. Modelling and control of satellite formations 

    E-Print Network [OSTI]

    Vaddi, Veera Venkata Sesha Sai

    2004-09-30

    ®erent satellites in a formation. To achieve the various mission objectives it is necessary for a formation to recon¯gure itself periodically. An analytical impulsive control scheme has been developed for this purpose. This control scheme has the distinct advantage... . . . . . . . . . . . . . . . . . . 15 1.4.2 Impulsive Control . . . . . . . . . . . . . . . . . . . 16 1.5 Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.6 Nonlinearity and Eccentricity Perturbations . . . . . . . . 18 1.7 Linear and Nonlinear Controllers...

  12. Situ microbial plugging process for subterranean formations

    DOE Patents [OSTI]

    McInerney, Michael J. (Norman, OK); Jenneman, Gary E. (Norman, OK); Knapp, Roy M. (Norman, OK); Menzie, Donald E. (Norman, OK)

    1985-12-17

    Subterranean paths of water flow are impeded or changed by the facilitation of microbial growth therein. Either indigenous bacterial growth may be stimulated with nutrients or the formation may be first seeded with bacteria or their spores which inhibit fluid flow after proliferation. These methods and bacteria are usable to alter the flow of water in a waterflooded oil formation and to impede the outflow of contaminated water.

  13. PdBI cold dust imaging of two extremely red H – [4.5] > 4 galaxies discovered with SEDS and CANDELS

    SciTech Connect (OSTI)

    Caputi, K. I.; Popping, G.; Spaans, M.; Micha?owski, M. J.; Dunlop, J. S.; Krips, M.; Geach, J. E.; Ashby, M. L. N.; Huang, J.-S.; Fazio, G. G.; Koekemoer, A. M.; Castellano, M.; Fontana, A.; Santini, P.

    2014-06-20

    We report Plateau de Bure Interferometer (PdBI) 1.1 mm continuum imaging toward two extremely red H – [4.5] > 4 (AB) galaxies at z > 3, which we have previously discovered making use of Spitzer SEDS and Hubble Space Telescope CANDELS ultra-deep images of the Ultra Deep Survey field. One of our objects is detected on the PdBI map with a 4.3? significance, corresponding to S{sub ?}(1.1 mm)=0.78±0.18 mJy. By combining this detection with the Spitzer 8 and 24 ?m photometry for this source, and SCUBA2 flux density upper limits, we infer that this galaxy is a composite active galactic nucleus/star-forming system. The infrared (IR)-derived star formation rate is SFR ? 200 ± 100 M {sub ?} yr{sup –1}, which implies that this galaxy is a higher-redshift analogue of the ordinary ultra-luminous infrared galaxies more commonly found at z ? 2-3. In the field of the other target, we find a tentative 3.1? detection on the PdBI 1.1 mm map, but 3.7 arcsec away of our target position, so it likely corresponds to a different object. In spite of the lower significance, the PdBI detection is supported by a close SCUBA2 3.3? detection. No counterpart is found on either the deep SEDS or CANDELS maps, so, if real, the PdBI source could be similar in nature to the submillimeter source GN10. We conclude that the analysis of ultra-deep near- and mid-IR images offers an efficient, alternative route to discover new sites of powerful star formation activity at high redshifts.

  14. Star formation relations in nearby molecular clouds

    SciTech Connect (OSTI)

    Evans, Neal J. II; Heiderman, Amanda; Vutisalchavakul, Nalin

    2014-02-20

    We test some ideas for star formation relations against data on local molecular clouds. On a cloud by cloud basis, the relation between the surface density of star formation rate and surface density of gas divided by a free-fall time, calculated from the mean cloud density, shows no significant correlation. If a crossing time is substituted for the free-fall time, there is even less correlation. Within a cloud, the star formation rate volume and surface densities increase rapidly with the corresponding gas densities, faster than predicted by models using the free-fall time defined from the local density. A model in which the star formation rate depends linearly on the mass of gas above a visual extinction of 8 mag describes the data on these clouds, with very low dispersion. The data on regions of very massive star formation, with improved star formation rates based on free-free emission from ionized gas, also agree with this linear relation.

  15. OBSERVABLE SIGNATURES OF PLANET ACCRETION IN RED GIANT STARS. I. RAPID ROTATION AND LIGHT ELEMENT REPLENISHMENT

    SciTech Connect (OSTI)

    Carlberg, Joleen K.; Cunha, Katia; Smith, Verne V.; Majewski, Steven R. E-mail: srm4n@virginia.edu E-mail: cunha@noao.edu

    2012-10-01

    The orbital angular momentum of a close-orbiting giant planet can be sufficiently large that, if transferred to the envelope of the host star during the red giant branch (RGB) evolution, it can spin-up the star's rotation to unusually large speeds. This spin-up mechanism is one possible explanation for the rapid rotators detected among the population of generally slow-rotating red giant stars. These rapid rotators thus comprise a unique stellar sample suitable for searching for signatures of planet accretion in the form of unusual stellar abundances due to the dissemination of the accreted planet in the stellar envelope. In this study, we look for signatures of replenishment in the Li abundances and (to a lesser extent) {sup 12}C/{sup 13}C, which are both normally lowered during RGB evolution. Accurate abundances were measured from high signal-to-noise echelle spectra for samples of both slow and rapid rotator red giant stars. We find that the rapid rotators are on average enriched in lithium compared to the slow rotators, but both groups of stars have identical distributions of {sup 12}C/{sup 13}C within our measurement precision. Both of these abundance results are consistent with the accretion of planets of only a few Jupiter masses. We also explore alternative scenarios for understanding the most Li-rich stars in our sample-particularly Li regeneration during various stages of stellar evolution. Finally, we find that our stellar samples show non-standard abundances even at early RGB stages, suggesting that initial protostellar Li abundances and {sup 12}C/{sup 13}C may be more variable than originally thought.

  16. A Comment on the Infra-Red Problem in the AdS/CFT Correspondence

    E-Print Network [OSTI]

    Hanno Gottschalk; Horst Thaler

    2007-09-27

    In this note we report on some recent progress in proving the AdS/CFT correspondence for quantum fields using rigorously defined Euclidean path integrals. We also comment on the infra-red problem in the AdS/CFT correspondence and argue that it is different from the usual IR problem in constructive quantum field theory. To illustrate this, a triviality proof based on hypercontractivity estimates is given for the case of an ultra-violet regularized potential of type $:\\phi^4:$. We also give a brief discussion on possible renormalization strategies and the specific problems that arise in this context.

  17. The effects of selected sound pressure levels on the color discrimination of red, yellow, and green 

    E-Print Network [OSTI]

    Stone, Raymond Bruce

    1972-01-01

    to be 80 &I 8 . pressure levels- it is believed to noise over 130 dB is should be avoided; while there no hazard for levels below 2. Frequency distribution of sound energy- the ear is more susceptible to damage at middle and higher frequencies than... performing test I Blue showed the greatest number of errors with test I after exposure to 95 dBA. 8. 5 P L x Exposure x Test ? in this interaction, yellow and red showed the greatest number of 49 incorrect position placements using test 1 at no noise...

  18. Red light-emitting diodes based on InP/GaP quantum dots

    SciTech Connect (OSTI)

    Hatami, F.; Lordi, V.; Harris, J.S.; Kostial, H.; Masselink, W.T.

    2005-05-01

    The growth, fabrication, and device characterization of InP quantum-dot light-emitting diodes based on GaP are described and discussed. The diode structures are grown on gallium phosphide substrates using gas-source molecular-beam epitaxy and the active region of the diode consists of self-assembled InP quantum dots embedded in a GaP matrix. Red electroluminescence originating from direct band-gap emission from the InP quantum dots is observed at low temperatures.With increasing temperature, however, the emission line shifts to the longer wavelength. The emission light is measured to above room temperature.

  19. California Red Scale and its Control in the Lower Rio Grande Valley of Texas. 

    E-Print Network [OSTI]

    Clark, S. W. (Sherman Wood); Friend, W. H. (William Heartsill)

    1932-01-01

    appli contl agail insec Th of tl pend; insect The California Red Scale is capable of doing such serious damage to citrus trees in the Lower Rio Grande Valley that its control, is one of the major problems of citrus fruit production... in this region. Environmental conditions are apparently so favorable for the de- velopment and multiplication of this insect that it is probably more active in the Valley than in any of the other citrus-producing areas of the United States. Infested host...

  20. Open-system respirometry in intensive aquaculture: model validation and application to red drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Oborny, Edmund Lee

    1993-01-01

    be converted into caloric units of metabolic energy by applying the oxycaloric equivalent derived from earlier studies with homeotherms (Brody 1945, Kleiber 1961). However, since the principal energy sources in carnivorous fish, such as red drum, are lipid..., was performed by taking the initial weight in grams of all fish collectively in a particular tank times the % dry matter and, then, multiplying that number by the caloric yield of the initial sample in kcals g ' to give a value of kcals of initial energy...

  1. Biographical sketch - Kevin Redding | Center for Bio-Inspired Solar Fuel

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium andSampler AsProduction Kevin Redding a.

  2. V-041: Red Hat CloudForms Multiple Vulnerabilities | 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 GasAdjustmentsShirleyEnergyThe U.S.Lacledeutilities. The Economics of Electric System Municipalization LooksRed

  3. Red Storm: The Birth of a New Supercomputer. (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeedingConnect(Conference) |(Patent) | SciTech ConnectRed Storm IORed

  4. UNIVERSITY OF CALGARY Modeling Fracture Formation on Growing Surfaces

    E-Print Network [OSTI]

    Prusinkiewicz, Przemyslaw

    UNIVERSITY OF CALGARY Modeling Fracture Formation on Growing Surfaces by Pavol Federl A THESIS Fracture Formation on Growing Surfaces" submitted by Pavol Federl in partial fulfillment This thesis describes a framework for modeling fracture formation on differentially growing, bi- layered

  5. Creating and maintaining a gas cap in tar sands formations

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX); Dinkoruk, Deniz Sumnu (Houston, TX); Wellington, Scott Lee (Bellaire, TX)

    2010-03-16

    Methods for treating a tar sands formation are disclosed herein. Methods for treating a tar sands formation may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. Pressure may be allowed to increase in an upper portion of the formation to provide a gas cap in the upper portion. At least some hydrocarbons are produced from a lower portion of the formation.

  6. Mixed-mode diesel HCCI with External Mixture Formation: Preliminary...

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

    Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results 2003 DEER Conference...

  7. Formation and Stability of Impurity "Snakes" in Tokamak Plasmas...

    Office of Scientific and Technical Information (OSTI)

    Formation and Stability of Impurity "Snakes" in Tokamak Plasmas Citation Details In-Document Search Title: Formation and Stability of Impurity "Snakes" in Tokamak Plasmas Authors:...

  8. Evidence of a halo formation mechanism in the Spallation Neutron...

    Office of Scientific and Technical Information (OSTI)

    Published Article: Evidence of a halo formation mechanism in the Spallation Neutron Source linac Title: Evidence of a halo formation mechanism in the Spallation Neutron Source...

  9. Uncovering Fundamental Ash-Formation Mechanisms and Potential...

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

    Uncovering Fundamental Ash-Formation Mechanisms and Potential Means to Control the Impact on DPF Performance and Engine Efficiency Uncovering Fundamental Ash-Formation Mechanisms...

  10. Energy Secretary Moniz Announces Formation of Nuclear Energy...

    Office of Environmental Management (EM)

    Formation of Nuclear Energy Tribal Working Group Energy Secretary Moniz Announces Formation of Nuclear Energy Tribal Working Group December 12, 2014 - 2:00pm Addthis News Media...

  11. The role of polymer formation during vapor phase lubrication...

    Office of Scientific and Technical Information (OSTI)

    The role of polymer formation during vapor phase lubrication of silicon. Citation Details In-Document Search Title: The role of polymer formation during vapor phase lubrication of...

  12. DUAL HALOS AND FORMATION OF EARLY-TYPE GALAXIES

    SciTech Connect (OSTI)

    Park, Hong Soo; Lee, Myung Gyoon E-mail: mglee@astro.snu.ac.kr

    2013-08-20

    We present a determination of the two-dimensional shape parameters of the blue and red globular cluster systems (GCSs) in a large number of elliptical galaxies and lenticular galaxies (early-type galaxies, called ETGs). We use a homogeneous data set of the globular clusters in 23 ETGs obtained from the HST/ACS Virgo Cluster Survey. The position angles of both blue and red GCSs show a correlation with those of the stellar light distribution, showing that the major axes of the GCSs are well aligned with those of their host galaxies. However, the shapes of the red GCSs show a tight correlation with the stellar light distribution as well as with the rotation property of their host galaxies, while the shapes of the blue GCSs do much less. These provide clear geometric evidence that the origins of the blue and red globular clusters are distinct and that ETGs may have dual halos: a blue (metal-poor) halo and a red (metal-rich) halo. These two halos show significant differences in metallicity, structure, and kinematics, indicating that they are formed in two distinguishable ways. The red halos might have formed via dissipational processes with rotation, while the blue halos are through accretion.

  13. The redMaPPer Galaxy Cluster Catalog From DES Science Verification Data

    E-Print Network [OSTI]

    Rykoff, E S; Hollowood, D; Bermeo-Hernandez, A; Jeltema, T; Mayers, J; Romer, A K; Rooney, P; Saro, A; Cervantes, C Vergara; Wilcox, H; Abbott, T M C; Abdalla, F B; Allam, S; Annis, J; Benoit-Lévy, A; Bernstein, G M; Bertin, E; Brooks, D; Burke, D L; Capozzi, D; Rosell, A Carnero; Kind, M Carrasco; Castander, F J; Childress, M; Collins, C A; Cunha, C E; D'Andrea, C B; da Costa, L N; Davis, T M; Desai, S; Diehl, H T; Dietrich, J P; Doel, P; Evrard, A E; Finley, D A; Flaugher, B; Fosalba, P; Frieman, J; Glazebrook, K; Goldstein, D A; Gruen, D; Gruendl, R A; Gutierrez, G; Hilton, M; Honscheid, K; Hoyle, B; James, D J; Kay, S T; Kuehn, K; Kuropatkin, N; Lahav, O; Lewis, G F; Lidman, C; Lima, M; Maia, M A G; Mann, R G; Marshall, J L; Martini, P; Melchior, P; Miller, C J; Miquel, R; Mohr, J J; Nichol, R C; Nord, B; Ogando, R; Plazas, A A; Reil, K; Sahlén, M; Sanchez, E; Santiago, B; Scarpine, V; Schubnell, M; Sevilla-Noarbe, I; Smith, R C; Soares-Santos, M; Sobreira, F; Stott, J P; Suchyta, E; Swanson, M E C; Tarle, G; Thomas, D; Tucker, D; Viana, P T P; Vikram, V; Walker, A R; Zhang, Y

    2016-01-01

    We describe updates to the redMaPPer algorithm, a photometric red-sequence cluster finder specifically designed for large photometric surveys. The updated algorithm is applied to $150\\,\\mathrm{deg}^2$ of Science Verification (SV) data from the Dark Energy Survey (DES), and to the Sloan Digital Sky Survey (SDSS) DR8 photometric data set. The DES SV catalog is locally volume limited, and contains 786 clusters with richness $\\lambda>20$ (roughly equivalent to $M_{\\mathrm{500c}}\\gtrsim10^{14}\\,h_{70}^{-1}\\,M_{\\odot}$) and $0.2

  14. Population effects on the red giant clump absolute magnitude The K-band

    E-Print Network [OSTI]

    Salaris, M; Salaris, Maurizio

    2002-01-01

    We present a detailed analysis of the behaviour of the Red Clump K-band absolute magnitude (M(K,RC)) in simple and composite stellar populations, in light of its use as standard candle for distance determinations. The advantage of using M(K,RC), following recent empirical calibrations of its value for the solar neighbourhood, arises from its very low sensitivity to the extinction by interstellar dust. We provide data and equations which allow the determination of the K-band population correction Delta(M(K,RC)) (difference between the Red Clump brightness in the solar neighbourhood and in the population under scrutiny) for any generic stellar population. These data complement the results presented in Girardi & Salaris(2001) for the V- and I-band. We show how data from galactic open clusters consistently support our predicted Delta(M(V,RC)), Delta(M(I,RC)) and Delta(M(K,RC)) values. Multiband VIK population corrections for various galaxy systems are provided. They can be used in conjunction with the method ...

  15. Discovery of Red Selected Arcs at z=4.04 behind Abell 2390

    E-Print Network [OSTI]

    Brenda Frye; Tom Broadhurst

    1997-12-08

    We describe the properties of a system of red arcs discovered at z=4.04 around the cluster A2390 ($z=0.23$). These arcs are images of a single galaxy, where the lensing is compounded by an elliptical cluster member lying close to the critical curve of the cluster. The combined magnification is estimated to be $\\sim 20$, using HST images, depending the gradient of the model potentials, implying an unlensed magnitude for the source of $I_{AB}=25.5$. Keck spectroscopy reveals a continuum well fitted by B-stars and attenuated by the Lyman-series forest with an opacity consistent with z$\\sim$4 QSO spectra, making the arcs relatively red. Damped Ly$\\alpha$ absorption is observed at the source redshift with a relatively high column, n$_{HI}=3\\times 10^{21}$. Curiously, Ly$\\alpha$ emission is spatially separated ($\\sim 0.5$kpc) from the bright stellar continuum and lies $\\sim$ 300Km/s redward of interstellar absorption lines at z=4.04. Similar redwardl of young galaxies. Finally, we briefly comment on the notorious ``straight arc'' in A2390, which is resolved into two unrelated galaxies at z=0.913 and z=1.033.

  16. In situ oxidation of subsurface formations

    DOE Patents [OSTI]

    Beer, Gary Lee (Houston, TX); Mo, Weijian (Sugar Land, TX); Li, Busheng (Houston, TX); Shen, Chonghui (Calgary, CA)

    2011-01-11

    Methods and systems for treating a hydrocarbon containing formation described herein include providing heat to a first portion of the formation from a plurality of heaters in the first portion, producing produced through one or more production wells in a second portion of the formation, reducing or turning off heat provided to the first portion after a selected time, providing an oxidizing fluid through one or more of the heater wells in the first portion, providing heat to the first portion and the second portion through oxidation of at least some hydrocarbons in the first portion, and producing fluids through at least one of the production wells in the second portion. The produced fluids may include at least some oxidized hydrocarbons produced in the first portion.

  17. General relativity and cosmic structure formation

    E-Print Network [OSTI]

    Adamek, Julian; Durrer, Ruth; Kunz, Martin

    2015-01-01

    Numerical simulations are a versatile tool providing insight into the complicated process of structure formation in cosmology. This process is mainly governed by gravity, which is the dominant force on large scales. To date, a century after the formulation of general relativity, numerical codes for structure formation still employ Newton's law of gravitation. This approximation relies on the two assumptions that gravitational fields are weak and that they are only sourced by non-relativistic matter. While the former appears well justified on cosmological scales, the latter imposes restrictions on the nature of the "dark" components of the Universe (dark matter and dark energy) which are, however, poorly understood. Here we present the first simulations of cosmic structure formation using equations consistently derived from general relativity. We study in detail the small relativistic effects for a standard {\\Lambda}CDM cosmology which cannot be obtained within a purely Newtonian framework. Our particle-mesh N...

  18. Formation of Cyanoformaldehyde in the interstellar space

    E-Print Network [OSTI]

    Das, Ankan; Chakrabarti, Sandip K; Saha, Rajdeep; Chakrabarti, Sonali

    2013-01-01

    Cyanoformaldehyde (HCOCN) molecule has recently been suspected towards the Sagittarius B2(N) by the Green Bank telescope, though a confirmation of this observation has not yet been made. In and around a star forming region, this molecule could be formed by the exothermic reaction between two abundant interstellar species, H$_2$CO and CN. Till date, the reaction rate coefficient for the formation of this molecule is unknown. Educated guesses were used to explain the abundance of this molecule by chemical modeling. In this paper, we carried out quantum chemical calculations to find out empirical rate coefficients for the formation of HCOCN and different chemical properties during the formation of HCOCN molecules. Though HCOCN is stable against unimolecular decomposition, this gas phase molecule could be destroyed by many other means, like: ion-molecular reactions or by the effect of cosmic rays. Ion-molecular reaction rates are computed by using the capture theories. We have also included the obtained rate coef...

  19. The Formation of Primordial Luminous Objects

    E-Print Network [OSTI]

    Emanuele Ripamonti; Tom Abel

    2005-07-06

    In these lecture notes we review the current knowledge about the formation of the first luminous objects. We start from the cosmological context of hierarchical models of structure formation, and discuss the main physical processes which are believed to lead to primordial star formation, i.e. the cooling processes and the chemistry of molecules (especially H2) in a metal-free gas. We then describe the techniques and results of numerical simulations, which indicate that the masses of the first luminous objects are likely to be much larger than that of present-day stars. Finally, we discuss the scenario presented above, exposing some of the most interesting problems which are currently being investigated, such as that of the feedback effects of these objects.

  20. Planet Formation: Planet Formation: Evolution of The Solar NebulaEvolution of The Solar Nebula

    E-Print Network [OSTI]

    Herrick, Robert R.

    Planet Formation: Planet Formation: Evolution of The Solar NebulaEvolution of The Solar Nebula #12;Evolution of the Solar NebulaEvolution of the Solar Nebula 1.1. Nebula collapses into a disk 2000 KTemperatures near the Sun reach 2000 K #12;Evolution of the Solar NebulaEvolution of the Solar

  1. Unit Unit Desc Unit Unit Desc Program Program Desc OLD ACCOUNT FORMAT NEW ACCOUNT FORMAT

    E-Print Network [OSTI]

    Unit Unit Desc Unit Unit Desc Program Program Desc OLD ACCOUNT FORMAT NEW ACCOUNT FORMAT 001113 AP Old O/S A/P NonResCk 0000 General 000000 General #12;Unit Unit Desc Unit Unit Desc Program Program

  2. Formation Word/ExcelFormation Word/Excel Prsentateur:Prsentateur

    E-Print Network [OSTI]

    Vellend, Mark

    11 Formation Word/ExcelFormation Word/Excel Présentateur:Présentateur: Christian Desrochers partir de Word 2002. De légères différences peuventWord 2002. De légères différences peuvent survenir avec une version de Wordsurvenir avec une version de Word différente.différente. #12;33 Objectifs de la

  3. Factors of paleosol formation in a Late Cretaceous eolian sand sheet paleoenvironment, Marlia Formation, Southeastern Brazil

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Formation, Southeastern Brazil Patrick Francisco Führ Dal' Bó a, , Giorgio Basilici a , Rômulo Simões), Brazil b IG ­ Universidade Federal do Pará, 66075-110, Belém (PA), Brazil a b s t r a c ta r t i c l e i Late Cretaceous The Marília Formation, which crops out in southeastern Brazil, is interpreted as a Late

  4. Cosmic Censorship: Formation of a Shielding Horizon Around a Fragile Horizon

    E-Print Network [OSTI]

    Shahar Hod

    2013-02-27

    The weak cosmic censorship conjecture asserts that spacetime singularities that arise in gravitational collapse are always hidden inside of black holes, invisible to distant observers. This conjecture, put forward by Penrose more than four decades ago, is widely believed to be one of the basic principles of nature. However, a complete proof of this hypothesis is still lacking and the validity of the conjecture has therefore remained one of the most important open questions in general relativity. In this study we analyze a gedanken experiment which is designed to challenge cosmic censorship by trying to overcharge a Reissner-Nordstr\\"om black hole: a charged shell is lowered {\\it adiabatically} into the charged black hole. The mass-energy delivered to the black hole can be red-shifted by letting the dropping point of the shell approach the black-hole horizon. On the other hand, the electric charge of the shell is not red-shifted by the gravitational field of the black hole. It therefore seems, at first sight, that the charged shell is not hindered from entering the black hole, overcharging it and removing its horizon. However, in the present study we prove that the exposure of a naked singularity to distant observers is actually excluded due to the formation of a new (and {\\it larger}) horizon around the original black hole. Moreover, we shall prove that this new horizon is already formed {\\it before} the charged shell crosses the original black-hole horizon. This result, which seems to have been previously overlooked, guarantees the validity of the weak cosmic censorship conjecture in this type of gedanken experiments.

  5. STAR FORMATION IN TWO LUMINOUS SPIRAL GALAXIES

    SciTech Connect (OSTI)

    Hunter, Deidre A.; Ashburn, Allison; Wright, Teresa; Elmegreen, Bruce G.; Rubin, Vera C.; Józsa, Gyula I. G.; Struve, Christian

    2013-10-01

    We examined star formation in two very luminous (M{sub V} = –22 to –23) Sc-type spiral galaxies, NGC 801 and UGC 2885, using ultra-deep H? images. We combine these H? images with UBV and Two-Micron All-Sky Survey JHK images and H I maps to explore the star formation characteristics of disk galaxies at high luminosity. H? traces star formation in these galaxies to 4-6 disk scale lengths, but the lack of detection of H? further out is likely due to the loss of Lyman continuum photons. Considering gravitational instabilities alone, we find that the gas and stars in the outer regions are marginally stable in an average sense, but considering dissipative gas and radial and azimuthal forcing, the outer regions are marginally unstable to forming spiral arms. Star formation is taking place in spiral arms, which are regions of locally higher gas densities. Furthermore, we have traced smooth exponential stellar disks over four magnitudes in V-band surface brightness and 4-6 disk scale lengths, in spite of a highly variable gravitational instability parameter. Thus, gravitational instability thresholds do not seem relevant to the stellar disk. One possibility for creating an exponential disk is that the molecular cloud densities and star formation rates have exponential profiles and this fact forces the stellar disk to build up such a profile. Another possibility is that the stellar disk is continuously adjusted to an exponential shape regardless of the star formation profile, for example, through global dynamical processes that scatter stars. However, such scattering processes are only known to operate in spiral systems, in which case they cannot explain the same dilemma of smooth exponential disks observed in dwarf irregular galaxies.

  6. Aromatics oxidation and soot formation in flames

    SciTech Connect (OSTI)

    Howard, J.B.; Pope, C.J.; Shandross, R.A.; Yadav, T. [Massachusetts Institute of Technology, Cambridge (United States)

    1993-12-01

    This project is concerned with the kinetics and mechanisms of aromatics oxidation and soot and fullerenes formation in flames. The scope includes detailed measurements of profiles of stable and radical species concentrations in low-pressure one-dimensional premixed flames. Intermediate species identifications and mole fractions, fluxes, and net reaction rates calculated from the measured profiles are used to test postulated reaction mechanisms. Particular objectives are to identify and to determine or confirm rate constants for the main benzene oxidation reactions in flames, and to characterize fullerenes and their formation mechanisms and kinetics.

  7. Creating fluid injectivity in tar sands formations

    DOE Patents [OSTI]

    Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

    2010-06-08

    Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.

  8. Creating fluid injectivity in tar sands formations

    DOE Patents [OSTI]

    Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

    2012-06-05

    Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons including mobilized hydrocarbons are produced from the portion.

  9. Induction heaters used to heat subsurface formations

    DOE Patents [OSTI]

    Nguyen, Scott Vinh (Houston, TX); Bass, Ronald M. (Houston, TX)

    2012-04-24

    A heating system for a subsurface formation includes an elongated electrical conductor located in the subsurface formation. The electrical conductor extends between at least a first electrical contact and a second electrical contact. A ferromagnetic conductor at least partially surrounds and at least partially extends lengthwise around the electrical conductor. The electrical conductor, when energized with time-varying electrical current, induces sufficient electrical current flow in the ferromagnetic conductor such that the ferromagnetic conductor resistively heats to a temperature of at least about 300.degree. C.

  10. Parallel heater system for subsurface formations

    DOE Patents [OSTI]

    Harris, Christopher Kelvin (Houston, TX); Karanikas, John Michael (Houston, TX); Nguyen, Scott Vinh (Houston, TX)

    2011-10-25

    A heating system for a subsurface formation is disclosed. The system includes a plurality of substantially horizontally oriented or inclined heater sections located in a hydrocarbon containing layer in the formation. At least a portion of two of the heater sections are substantially parallel to each other. The ends of at least two of the heater sections in the layer are electrically coupled to a substantially horizontal, or inclined, electrical conductor oriented substantially perpendicular to the ends of the at least two heater sections.

  11. ACCRETION-INHIBITED STAR FORMATION IN THE WARM MOLECULAR DISK OF THE GREEN-VALLEY ELLIPTICAL GALAXY NGC 3226?

    SciTech Connect (OSTI)

    Appleton, P. N.; Bitsakis, T.; Alatalo, K.; Mundell, C.; Lacy, M.; Armus, L.; Charmandaris, V.; Duc, P.-A.; Lisenfeld, U.; Ogle, P.

    2014-12-20

    We present archival Spitzer photometry and spectroscopy and Herschel photometry of the peculiar ''Green Valley'' elliptical galaxy NGC 3226. The galaxy, which contains a low-luminosity active galactic nucleus (AGN), forms a pair with NGC 3227 and is shown to lie in a complex web of stellar and H I filaments. Imaging at 8 and 16 ?m reveals a curved plume structure 3 kpc in extent, embedded within the core of the galaxy and coincident with the termination of a 30 kpc long H I tail. In situ star formation associated with the infrared (IR) plume is identified from narrowband Hubble Space Telescope (HST) imaging. The end of the IR plume coincides with a warm molecular hydrogen disk and dusty ring containing 0.7-1.1 × 10{sup 7} M {sub ?} detected within the central kiloparsec. Sensitive upper limits to the detection of cold molecular gas may indicate that a large fraction of the H{sub 2} is in a warm state. Photometry derived from the ultraviolet (UV) to the far-IR shows evidence for a low star-formation rate of ?0.04 M {sub ?} yr{sup –1} averaged over the last 100 Myr. A mid-IR component to the spectral energy distribution (SED) contributes ?20% of the IR luminosity of the galaxy, and is consistent with emission associated with the AGN. The current measured star formation rate is insufficient to explain NGC 3226's global UV-optical ''green'' colors via the resurgence of star formation in a ''red and dead'' galaxy. This form of ''cold accretion'' from a tidal stream would appear to be an inefficient way to rejuvenate early-type galaxies and may actually inhibit star formation.

  12. Role of manganese in red long-lasting phosphorescence of manganese-doped diopside for in vivo imaging

    SciTech Connect (OSTI)

    Lecointre, A.; Bessière, A.; Priolkar, K.R.; Gourier, D.; Wallez, G.; Viana, B.

    2013-05-15

    Highlights: ? Long-lasting phosphorescence of CaMgSi{sub 2}O{sub 6}:Mn is studied for bioimaging application. ? CaMgSi{sub 2}O{sub 6}:Mn yields orange and red luminescence of Mn{sup II}{sub Ca} and Mn{sup II}{sub Mg}, respectively. ? Red Mn{sup II}{sub Mg} emission dominates long-lasting phosphorescence spectra. ? Mn mainly substitutes Mg. ? Mn{sup II}{sub Mg} plays the role of hole trap in the persistent luminescence mechanism. - Abstract: Materials with red long-lasting phosphorescence, such as Mn{sup II}-doped diopsides, can be used for small animal in vivo imaging. CaMgSi{sub 2}O{sub 6}:Mn powders with various amounts of Mn were prepared by sol–gel to investigate their long-lasting phosphorescence mechanism. X-ray diffraction, X-ray absorption fine and near-edge structure and electron paramagnetic resonance showed that manganese is quantitatively introduced in the structure as Mn{sup II}. Most of the Mn doping ions substitute Mg and possess a highly elongated octahedral environment. While photoluminescence and X-ray excited optical luminescence spectra show both orange (585 nm) and red (685 nm) {sup 4}T{sub 1} ({sup 4}G) ? {sup 6}A{sub 1} ({sup 6}S) emission of Mn{sup II}{sub Ca} and Mn{sup II}{sub Mg}, respectively, Mn{sup II}{sub Mg} red emission dominates long-lasting phosphorescence and thermally stimulated luminescence spectra. These results point to Mn{sup II}{sub Mg} as the preferential hole trap and recombination center in the long-lasting phosphorescence mechanism. An intense persistent red emission suitable for in vivo imaging probes is obtained for the highest nominal Mn content (7.5%)

  13. Ralf Klessen: Lecture 2: 27.12.2006 Star Formation

    E-Print Network [OSTI]

    Klessen,Ralf

    efficiencyefficiency? How do globalglobal properties of the galaxy influence star formation (a locallocal process

  14. Distributed Control of Formation Flying Spacecraft Built on OA

    E-Print Network [OSTI]

    and the potential for creating fuel-efficient formation configurations rele- vant to future magnetospheric space

  15. Power systems utilizing the heat of produced formation fluid

    DOE Patents [OSTI]

    Lambirth, Gene Richard (Houston, TX)

    2011-01-11

    Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method includes treating a hydrocarbon containing formation. The method may include providing heat to the formation; producing heated fluid from the formation; and generating electricity from at least a portion of the heated fluid using a Kalina cycle.

  16. Critical Test of the Self-Similar Cosmological Paradigm: Anomalously Few Planets Orbiting Low-Mass Red Dwarf Stars

    E-Print Network [OSTI]

    Robert L. Oldershaw

    2012-04-02

    The incidence of planetary systems orbiting red dwarf stars with masses less than 0.4 solar masses provides a crucial observational test for the Self-Similar Cosmological paradigm. The discrete self-similarity of the paradigm mandates the prediction of anomalously few planetary systems associated with these lowest mass red dwarf stars, in contrast to conventional astrophysical assumptions. Ongoing observational programs are rapidly collecting the data necessary for testing this prediction and preliminary results are highly encouraging. A definitive verdict on the prediction should be available in the near future.

  17. La Cl informatique Formation Outlook 2000

    E-Print Network [OSTI]

    Vellend, Mark

    La Clé informatique Formation Outlook 2000 Aide-mémoire Novembre 2003 #12;Table des matières Écrire directement dans votre Outlook. Voici la méthode pour le faire. Dans le menu Outils, choisir Comptes de Hotmail apparaîtra dans la liste des comptes de Outlook. 11 #12;Mettre un arrière plan dans votre message

  18. Star Formation Histories in the Local Group

    E-Print Network [OSTI]

    Thomas M. Brown

    2004-07-09

    Deep color magnitude diagrams extending to the main sequence provide the most direct measure of the detailed star formation history in a stellar population. With large investments of observing time, HST can obtain such data for populations out to 1 Mpc, but its field of view is extremely small in comparison to the size of Local Group galaxies. This limitation severely constrains our understanding of galaxy formation. For example, the largest galaxy in the Local Group, Andromeda, offers an ideal laboratory for studying the formation of large spiral galaxies, but the galaxy shows substructure on a variety of scales, presumably due to its violent merger history. Within its remaining lifetime, HST can only sample a few sight-lines through this complex galaxy. In contrast, a wide field imager could provide a map of Andromeda's halo, outer disk, and tidal streams, revealing the spatially-dependent star formation history in each structure. The same data would enable many secondary studies, such as the age variation in Andromeda's globular cluster system, gigantic samples of variable stars, and microlensing tracers of the galaxy's dark matter distribution.

  19. Can Photo-Evaporation Trigger Planetesimal Formation?

    E-Print Network [OSTI]

    Throop, Henry

    Can Photo-Evaporation Trigger Planetesimal Formation? Henry Throop John Bally SWRI Univ.Colorado / CASA DPS 12-Oct-2004 #12;Orion Nebula Photo-evaporation by extr 4 O/B stars, UV-bright, 105 solar luminosities 2000 solar-type stars with disks Photo-evaporation (PE) by external O/B stars removes disks on 105

  20. Formation distance Stphanie Jean-Daubias

    E-Print Network [OSTI]

    Jean-Daubias, Stéphanie

    ) dans le temps et dans l'espace de l'apprenant et de l'équipe professorale 3 #12;Deux types de médias en;Formation à distance et espace Plusieurs variantes possibles enseignement entièrement à distance

  1. Facult de Sant Publique Formation continue

    E-Print Network [OSTI]

    Nesterov, Yurii

    Faculté de Santé Publique Formation continue en management des institutions de soins Programme 2011, management stratégique (UCL, ULB) CIPS p.16 > Certificat interuniversitaire en management de la qualité dans) p.19 > Certificat interuniversitaire en management médical (ULB, UCL) CIMM p.19 > Certificat

  2. Formatting Your Senior Project Get started!

    E-Print Network [OSTI]

    Arnold, Elizabeth A.

    at the bottom right of the dialog box. #12;Overall Formatting Guidelines Margins · Set all margins to 1 inch (top, bottom, left and right) · Set Header and Footer to .5 inch Font · Set size at 12 points · Choose Courier New, Times New Roman, Arial, Garamond, or Century Schoolbook. Alignment · Align text LEFT only

  3. ACOUSTIC FORMING FOR ENHANCED DEWATERING AND FORMATION

    SciTech Connect (OSTI)

    Cyrus K Aidun

    2007-11-30

    The next generation of forming elements based on acoustic excitation to increase drainage and enhances formation both with on-line control and profiling capabilities has been investigated in this project. The system can be designed and optimized based on the fundamental experimental and computational analysis and investigation of acoustic waves in a fiber suspension flow and interaction with the forming wire.

  4. Varying heating in dawsonite zones in hydrocarbon containing formations

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Xie, Xueying (Houston, TX); Miller, David Scott (Katy, TX)

    2009-07-07

    A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the formation such that different amounts of heat are provided to zones with different dawsonite compositions. The provided heat is allowed to transfer from the heaters to the formation. Fluids are produced from the formation.

  5. IS DUST FORMING ON THE RED GIANT BRANCH IN 47 Tuc?

    SciTech Connect (OSTI)

    Boyer, Martha L.; Gordon, Karl D.; Meixner, Margaret; Sewilo, Marta; Shiao, Bernie [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Van Loon, Jacco Th. [Astrophysics Group, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG (United Kingdom); McDonald, Iain [Jodrell Bank Centre for Astrophysics, Alan Turing Building, University of Manchester, M13 9PL (United Kingdom); Babler, Brian; Bracker, Steve; Meade, Marilyn [Department of Astronomy, University of Wisconsin, Madison, 475 North Charter Street, Madison, WI 53706-1582 (United States); Block, Miwa; Engelbracht, Charles; Misselt, Karl [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Hora, Joe [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS 65, Cambridge, MA 02138-1516 (United States); Indebetouw, Remy [Department of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818 (United States); Whitney, Barbara [Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301 (United States)], E-mail: mboyer@stsci.edu

    2010-03-10

    Using Spitzer Infrared Array Camera (IRAC) observations from the SAGE-SMC Legacy program and archived Spitzer IRAC data, we investigate dust production in 47 Tuc, a nearby massive Galactic globular cluster. A previous study detected infrared excess, indicative of circumstellar dust, in a large population of stars in 47 Tuc, spanning the entire red giant branch (RGB). We show that those results suffered from effects caused by stellar blending and imaging artifacts and that it is likely that no stars below {approx}1 mag from the tip of the RGB are producing dust. The only stars that appear to harbor dust are variable stars, which are also the coolest and most luminous stars in the cluster.

  6. Infra-red expansion of entanglement entropy in the Interacting Resonant Level Model

    E-Print Network [OSTI]

    Loïc Freton; Edouard Boulat; Hubert Saleur

    2013-01-28

    In this paper we develop a method to describe perturbatively the entanglement entropy in a simple impurity model, the interacting resonant level model (IRLM), at low energy (i.e. in the strong coupling regime). We use integrability results or the Kondo model to describe the infra-red fixed point, conformal field theory techniques initially developped by Cardy and Calabrese and a quantization scheme that allows one to compute exactly Renyi entropies at arbitrary order in $1/T_B$ in principle, even when the system size or the temperature is finite. We show that those universal quantities at arbitrary interaction parameter in the strong coupling regime are very well approximated by the same quantities in the free fermion system in the case of attractive Coulomb interaction, whereas a strong dependence on the interaction appears in the case of repulsive interaction.

  7. Surface plasmon polariton assisted red shift in excitonic emission of semiconductor microflowers

    SciTech Connect (OSTI)

    Parameswaran, Chithra [Centre for Nanotechnology Research, VIT University, Vellore 632014 (India); Warrier, Anita R., E-mail: cvijayan@iitm.ac.in; Bingi, Jayachandra, E-mail: cvijayan@iitm.ac.in; Vijayan, C., E-mail: cvijayan@iitm.ac.in [Indian Institute of Technology Madras, Chennai 600036 (India)

    2014-10-15

    We report on the study of metal nanoparticle-semiconductor hybrid system composed of ?-indium sulfide (?-In{sub 2}S{sub 3}) and gold (Au) nanoparticles. ?-In{sub 2}S{sub 3} micron sized flower like structures (?1 ?m) and Au nanoparticles (?10 nm) were synthesized by chemical route. These Au nanoparticles have surface plasmon resonance at ? 520 nm. We study the influence of Au surface plasmon polaritons on the radiative properties of the ?-In{sub 2}S{sub 3} microflowers. As a result of the coupling between the surface plasmon polaritons and the excitons there is a red shift ? 50 nm in emission spectrum of hybrid ?-In{sub 2}S{sub 3}-Au system. Such hybrid systems provide scope for a control on the optical properties of semiconductor microstructures, thus rendering them suitable for specific device applications in optoelectronics and photovoltaics.

  8. GTC optical imaging of extremely red 5C radio galaxies at high redshift

    E-Print Network [OSTI]

    Humphrey, A; Lagos, P

    2015-01-01

    We investigate the nature of seven unusual radio galaxies from the 5C catalogue that were previously known to have extremely red R-K colours, and for which emission lines were previously found to be weak or absent in their optical spectra. We present and discuss u, g, or r images of these radio galaxies, obtained using the Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy (OSIRIS) at the Gran Telescopio Canarias (GTC). We have detected all seven targets in our g-band imaging. Their optical emission is extended, and we tentatively detect a radio-optical alignment effect in this sample. A subset of our sample (three sources) shows broad-band spectral energy distributions that flatten out near the wavelength range of the g-band, implying a dominant contribution there due to young stars and/or scattered or reprocessed radiation from the active nucleus.

  9. Stacked white OLED having separate red, green and blue sub-elements

    SciTech Connect (OSTI)

    Forrest, Stephen; Qi, Xiangfei; Slootsky, Michael

    2014-07-01

    The present invention relates to efficient organic light emitting devices (OLEDs). The devices employ three emissive sub-elements, typically emitting red, green and blue, to sufficiently cover the visible spectrum. Thus, the devices may be white-emitting OLEDs, or WOLEDs. Each sub-element comprises at least one organic layer which is an emissive layer--i.e., the layer is capable of emitting light when a voltage is applied across the stacked device. The sub-elements are vertically stacked and are separated by charge generating layers. The charge-generating layers are layers that inject charge carriers into the adjacent layer(s) but do not have a direct external connection.

  10. Computational design of a red fluorophore ligase for site-specific protein labeling in living cells

    SciTech Connect (OSTI)

    Liu, Daniel S.; Nivon, Lucas G.; Richter, Florian; Goldman, Peter J.; Deerinck, Thomas J.; Yao, Jennifer Z.; Richardson, Douglas; Phipps, William S.; Ye, Anne Z.; Ellisman, Mark H.; Drennan, Catherine L.; Baker, David; Ting, Alice Y.

    2014-10-13

    In this study, chemical fluorophores offer tremendous size and photophysical advantages over fluorescent proteins but are much more challenging to target to specific cellular proteins. Here, we used Rosetta-based computation to design a fluorophore ligase that accepts the red dye resorufin, starting from Escherichia coli lipoic acid ligase. X-ray crystallography showed that the design closely matched the experimental structure. Resorufin ligase catalyzed the site-specific and covalent attachment of resorufin to various cellular proteins genetically fused to a 13-aa recognition peptide in multiple mammalian cell lines and in primary cultured neurons. We used resorufin ligase to perform superresolution imaging of the intermediate filament protein vimentin by stimulated emission depletion and electron microscopies. This work illustrates the power of Rosetta for major redesign of enzyme specificity and introduces a tool for minimally invasive, highly specific imaging of cellular proteins by both conventional and superresolution microscopies.

  11. Computational design of a red fluorophore ligase for site-specific protein labeling in living cells

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

    Liu, Daniel S.; Nivon, Lucas G.; Richter, Florian; Goldman, Peter J.; Deerinck, Thomas J.; Yao, Jennifer Z.; Richardson, Douglas; Phipps, William S.; Ye, Anne Z.; Ellisman, Mark H.; et al

    2014-10-13

    In this study, chemical fluorophores offer tremendous size and photophysical advantages over fluorescent proteins but are much more challenging to target to specific cellular proteins. Here, we used Rosetta-based computation to design a fluorophore ligase that accepts the red dye resorufin, starting from Escherichia coli lipoic acid ligase. X-ray crystallography showed that the design closely matched the experimental structure. Resorufin ligase catalyzed the site-specific and covalent attachment of resorufin to various cellular proteins genetically fused to a 13-aa recognition peptide in multiple mammalian cell lines and in primary cultured neurons. We used resorufin ligase to perform superresolution imaging of themore »intermediate filament protein vimentin by stimulated emission depletion and electron microscopies. This work illustrates the power of Rosetta for major redesign of enzyme specificity and introduces a tool for minimally invasive, highly specific imaging of cellular proteins by both conventional and superresolution microscopies.« less

  12. Cosmological Implications of He-3 Destruction on the Red Giant Branch

    E-Print Network [OSTI]

    Arnold I. Boothroyd; Robert A. Malaney

    1995-12-20

    Observations of stellar CNO isotope ratios indicate the presence of additional mixing processes on the red giant branch. An estimate of the resulting stellar He-3 depletion is made, as a function of stellar mass and metallicity. Based on stellar nucleosynthesis and galactic chemical evolution calculations, we determine the degree to which the destruction of He-3 due to such extra mixing processes can influence the inferred primordial abundance of ( D + He-3 ). We find that the extra mixing processes may increase the upper limit of the inferred primordial ( D + He-3 ) / H ratio by about 20%. The implications of this for baryonic dark matter bounds, and constraints on the relativistic degrees of freedom in the early universe, are discussed.

  13. IMPACTS OF BIOFILM FORMATION ON CELLULOSE FERMENTATION

    SciTech Connect (OSTI)

    Leschine, Susan

    2009-10-31

    This project addressed four major areas of investigation: i) characterization of formation of Cellulomonas uda biofilms on cellulose; ii) characterization of Clostridium phytofermentans biofilm development; colonization of cellulose and its regulation; iii) characterization of Thermobifida fusca biofilm development; colonization of cellulose and its regulation; and iii) description of the architecture of mature C. uda, C. phytofermentans, and T. fusca biofilms. This research is aimed at advancing understanding of biofilm formation and other complex processes involved in the degradation of the abundant cellulosic biomass, and the biology of the microbes involved. Information obtained from these studies is invaluable in the development of practical applications, such as the single-step bioconversion of cellulose-containing residues to fuels and other bioproducts. Our results have clearly shown that cellulose-decomposing microbes rapidly colonize cellulose and form complex structures typical of biofilms. Furthermore, our observations suggest that, as cells multiply on nutritive surfaces during biofilms formation, dramatic cell morphological changes occur. We speculated that morphological changes, which involve a transition from rod-shaped cells to more rounded forms, might be more apparent in a filamentous microbe. In order to test this hypothesis, we included in our research a study of biofilm formation by T. fusca, a thermophilic cellulolytic actinomycete commonly found in compost. The cellulase system of T. fusca has been extensively detailed through the work of David Wilson and colleagues at Cornell, and also, genome sequence of a T. fusca strain has been determine by the DOE Joint Genome Institute. Thus, T. fusca is an excellent subject for studies of biofilm development and its potential impacts on cellulose degradation. We also completed a study of the chitinase system of C. uda. This work provided essential background information for understanding how C. uda colonizes and degrades insoluble substrates. Major accomplishments of the project include: • Development of media containing dialysis tubing (described by the manufacturer as “regenerated cellulose”) as sole carbon and energy source and a nutritive surface for the growth of cellulolytic bacteria, and development of various microscopic methods to image biofilms on dialysis tubing. • Demonstration that cultures of C. phytofermentans, an obligate anaerobe, C. uda, a facultative aerobe, and T. fusca, a filamentous aerobe, formed microbial communities on the surface of dialysis tubing, which possessed architectural features and functional characteristics typical of biofilms. • Demonstration that biofilm formation on the nutritive surface, cellulose, involves a complex developmental processes, including colonization of dialysis tubing, formation of cell clusters attached to the nutritive surface, cell morphological changes, formation of complex structures embedded in extracellular polymeric matrices, and dispersal of biofilm communities as the nutritive surface is degraded. • Determination of surface specificity and regulatory aspects of biofilm formation by C. phytofermentans, C. uda, and T. fusca. • Demonstration that biofilm formation by T. fusca forms an integral part of the life cycle of this filamentous cellulolytic bacterium, including studies on the role of mycelial pellet formation in the T. fusca life cycle and a comparison of mycelial pellets to surface-attached T. fusca biofilms. • Characterization of T. fusca biofilm EPS, including demonstration of a functional role for EPS constituents. • Correlation of T. fusca developmental life cycle and cellulase gene expression.

  14. Spectropolarimetry of the Massive Post-Red Supergiants IRC +10420 and HD 179821

    E-Print Network [OSTI]

    M. Patel; R. D. Oudmaijer; J. S. Vink; J. E. Bjorkman; B. Davies; M. A. T. Groenewegen; A. S. Miroshnichenko; J. C. Mottram

    2008-01-06

    We present medium resolution spectropolarimetry and long term photo-polarimetry of two massive post-red supergiants, IRC +10420 and HD 179821. The data provide new information on their circumstellar material as well as their evolution. In IRC +10420, the polarization of the Halpha line is different to that of the continuum, which indicates that the electron-scattering region is not spherically symmetric. The observed long term changes in the polarimetry can be associated with an axi-symmetric structure, along the short axis of the extended reflection nebulosity. Long term photometry reveals that the star increased in temperature until the mid-nineties, after which the photospheric flux in the optical levelled off. As the photometric changes are mostly probed in the red, they do not trace high stellar temperatures sensitively. And so, it is not obvious whether the star has halted its increase in temperature or not. For HD 179821 we find no polarization effects across any absorption or emission lines, but observe very large polarization changes of order 5% over 15 years. Unexpectedly, during the same period, the optical photometry displayed modest variability at the 0.2 magnitude level. Several explanations for this puzzling fact are discussed. Most of which, involving asymmetries in the circumstellar material, seem to fail as there is no evidence for the presence of hot, dusty material close to the star. Alternatively, the variations can be explained by the presence of a non-radially pulsating photosphere. Changes in the photometry hint at an increase in temperature corresponding to a change through two spectral subclasses over the past ten years.

  15. Factors affecting breeding season survival of Red-Headed Woodpeckers in South Carolina.

    SciTech Connect (OSTI)

    Kilgo, John, C.; Vukovich, Mark

    2011-11-18

    Red-headed woodpecker (Melanerpes erythrocephalus) populations have declined in the United States and Canada over the past 40 years. However, few demographic studies have been published on the species and none have addressed adult survival. During 2006-2007, we estimated survival probabilities of 80 radio-tagged red-headed woodpeckers during the breeding season in mature loblolly pine (Pinus taeda) forests in South Carolina. We used known-fate models in Program MARK to estimate survival within and between years and to evaluate the effects of foliar cover (number of available cover patches), snag density treatment (high density vs. low density), and sex and age of woodpeckers. Weekly survival probabilities followed a quadratic time trend, being lowest during mid-summer, which coincided with the late nestling and fledgling period. Avian predation, particularly by Cooper's (Accipiter cooperii) and sharp-shinned hawks (A. striatus), accounted for 85% of all mortalities. Our best-supported model estimated an 18-week breeding season survival probability of 0.72 (95% CI = 0.54-0.85) and indicated that the number of cover patches interacted with sex of woodpeckers to affect survival; females with few available cover patches had a lower probability of survival than either males or females with more cover patches. At the median number of cover patches available (n = 6), breeding season survival of females was 0.82 (95% CI = 0.54-0.94) and of males was 0.60 (95% CI = 0.42-0.76). The number of cover patches available to woodpeckers appeared in all 3 of our top models predicting weekly survival, providing further evidence that woodpecker survival was positively associated with availability of cover. Woodpecker survival was not associated with snag density. Our results suggest that protection of {ge}0.7 cover patches per ha during vegetation control activities in mature pine forests will benefit survival of this Partners In Flight Watch List species.

  16. GRANULATION SIGNATURES IN THE SPECTRUM OF THE VERY METAL-POOR RED GIANT HD 122563

    SciTech Connect (OSTI)

    RamIrez, I. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Collet, R.; Asplund, M. [Max Planck Institut fuer Astrophysik, Postfach 1317, 85741 Garching (Germany); Lambert, D. L. [McDonald Observatory and Department of Astronomy, University of Texas, Austin, TX 78712-0259 (United States); Allende Prieto, C. [Instituto de Astrofisica de Canarias, 38205, La Laguna, Tenerife (Spain)

    2010-12-20

    A very high resolution (R = {lambda}/{Delta}{lambda} = 200, 000), high signal-to-noise ratio (S/N {approx_equal} 340) blue-green spectrum of the very metal-poor ([Fe/H] {approx_equal} -2.6) red giant star HD 122563 has been obtained by us at McDonald Observatory. We measure the asymmetries and core wavelengths of a set of unblended Fe I lines covering a wide range of line strength. Line bisectors exhibit the characteristic C-shape signature of surface convection (granulation) and they span from about 100 m s{sup -1} in the strongest Fe I features to 800 m s{sup -1} in the weakest ones. Core wavelength shifts range from about -100 to -900 m s{sup -1}, depending on line strength. In general, larger blueshifts are observed in weaker lines, but there is increasing scatter with increasing residual flux. Assuming local thermodynamic equilibrium (LTE), we synthesize the same set of spectral lines using a state-of-the-art three-dimensional (3D) hydrodynamic simulation for a stellar atmosphere of fundamental parameters similar to those of HD 122563. We find good agreement between model predictions and observations. This allows us to infer an absolute zero point for the line shifts and radial velocity. Moreover, it indicates that the structure and dynamics of the simulation are realistic, thus providing support to previous claims of large 3D-LTE corrections to elemental abundances and fundamental parameters of very metal-poor red giant stars obtained with standard 1D-LTE spectroscopic analyses, as suggested by the hydrodynamic model used here.

  17. (Non) formation of methanol by direct hydrogenation of formate on copper catalysts

    SciTech Connect (OSTI)

    Yang, Yong; Mims, Charles A.; Disselkamp, Robert S.; Kwak, Ja Hun; Peden, Charles HF; Campbell, C. T.

    2010-10-14

    We have attempted to hydrogenate adsorbed formate species on copper catalysts to probe the importance of this postulated mechanistic step in methanol synthesis. Surface formate coverages up to 0.25 were produced at temperatures between 413K and 453K on supported (Cu/SiO2) copper and unsupported copper catalysts. The adlayers were produced by various methods including (1) steady state catalytic conditions in CO2-H2 (3:1, 6 bar) atmospheres, and (2) by exposure of the catalysts to formic acid. As reported in earlier work, the catalytic surface at steady state contains bidentate formate species with coverages up to saturation levels of ~ 0.25 at the low temperatures of this study. The reactivity of these formate adlayers was investigated at relevant reaction temperatures in atmospheres containing up to 6 bar H2 partial pressure by simultaneous mass spectrometry (MS) and infrared (IR) spectroscopy measurements. The yield of methanol during the attempted hydrogenation (“titration”) of these adlayers was insignificant (<0.2 mol % of the formate adlayer) even in dry hydrogen partial pressures up to 6 bar. Hydrogen titration of formate species produced from formic acid also failed to produce significant quantities of methanol, and attempted titration in gases consisting of CO-hydrogen mixtures or dry CO2 were also unproductive. The formate decomposition kinetics, measured by IR, were also unaffected by these changes in the gas composition. Similar experiments on unsupported copper also failed to show any methanol. From these results, we conclude that methanol synthesis on copper cannot result from the direct hydrogenation of (bidentate) formate species in simple steps involving adsorbed H species alone. Furthermore, experiments performed on both supported (Cu/SiO2) and unsupported copper catalysts gave similar results implying that the methanol synthesis reaction mechanism only involves metal surface chemistry. Pre-exposure of the bidentate formate adlayer to oxidation by O2 or N2O produces a change to a monodentate configuration. Attempted titration of this monodentate formate/O coadsorbed layer in dry hydrogen produces significant quantities of methanol, although decomposition of formate to carbon dioxide and hydrogen remains the dominant reaction pathway. Simultaneous production of water is also observed during this titration as the copper surface is re-reduced. These results indicate that co-adsorbates related to surface oxygen or water-derived species may be critical to methanol production on copper, perhaps assisting in the hydrogenation of adsorbed formate to adsorbed methoxyl.

  18. PhotochemisfvondPhofobiology. 1971 . Vol. 14,pp. 667-682. PergamonPress. Printed in Great Britain FLUORESCENCE INDUCTION IN THE RED ALGA

    E-Print Network [OSTI]

    Govindjee

    FLUORESCENCE INDUCTION IN THE RED ALGA PORPHYRIDIUM CRUENTUM P. MOHANTY, G. PAPAGEORGIOU* and GOVINDJEE in the red alga Porphyridium cruentum. Both the fast and the slow fluorescence yield changes are affected algae both in the fast (sec) and in the slow (min) region (see Refs. [l-31). Characteristic points

  19. Mon. Not. R. Astron. Soc. 000, 117 (2012) Printed 13 August 2013 (MN LATEX style file v2.2) The Main Sequence of three Red Supergiant Clusters

    E-Print Network [OSTI]

    Froebrich, Dirk

    2012-01-01

    .2) The Main Sequence of three Red Supergiant Clusters Dirk Froebrich1 , Alexander Scholz2,3 1Centre and characterisation of the main sequence members of red supergiant rich clusters. Here we utilise publicly available in conjunction with standard photomet- ric decontamination techniques allows us to identify the most likely main

  20. Unique N-Glycan Moieties of the 66-kDa Cell Wall Glycoprotein from the Red Microalga Porphyridium sp.S

    E-Print Network [OSTI]

    Unique N-Glycan Moieties of the 66-kDa Cell Wall Glycoprotein from the Red Microalga Porphyridium of the unique sulfated complex cell wall polysaccharide of the red microalga Porphy- ridium sp. Structures were for biotechnological applica- tions, especially in evaluating the use of microalgae as cell fac- tories

  1. GEOPHYSICALRESEARCHLETTERS, VOL. 11, NO. 3, PAGES229-232, MARCH1984 MAGNETIC REMANENCE AND FABRIC PROPERTIES OF LABORATORY-DEPOSITED HEMATITE-BEARING RED SANDSTONE

    E-Print Network [OSTI]

    Torsvik, Trond Helge

    on the properties of DRM and magnetic fabric of hematite-bearing red sand-siltstone which was deposited to formGEOPHYSICALRESEARCHLETTERS, VOL. 11, NO. 3, PAGES229-232, MARCH1984 MAGNETIC REMANENCE AND FABRIC PROPERTIES OF LABORATORY-DEPOSITED HEMATITE-BEARING RED SANDSTONE R. L·vlie and T. Torsvik Geophysical

  2. Alien plants in urban nature reserves: from red-list species to future invaders? 27 Alien plants in urban nature reserves

    E-Print Network [OSTI]

    Kratochvíl, Lukas

    Alien plants in urban nature reserves: from red-list species to future invaders? 27 Alien plants 2011 Citation: Jarosík V, Pysek P, KadlecT (2011) Alien plants in urban nature reserves: from red in these protected areas are complicated by high proportions of alien species. We examined which environmental

  3. An Assessment of the Natural and Anthropogenic Geochemistry of the Red Mountain Creek Watershed: Ironton Mining District, Colorado 

    E-Print Network [OSTI]

    Litt, Joshua

    2014-04-29

    Red Mountain Creek is located in the rich mineralized San Juan Mountains of Southwestern Colorado, where mining from the mid 1800s through the late 1970s occurred. Sampling of the Uncompahgre River in the late 1970s, which is downstream of the five...

  4. T-649: Red Hat Network Satellite Server Request Validation Flaw Permits Cross-Site Request Forgery Attacks

    Broader source: Energy.gov [DOE]

    The Red Hat Network (RHN) Satellite and Spacewalk services do not properly validate user-supplied. A remote user can create specially crafted HTML that, when loaded by a target authenticated user, will take actions on the target site acting as the target user.

  5. Estimate of the Catch of Red Snapper, Lutjanus campechanus, by Shrimp Trawlers in the U.S. Gulf of Mexico

    E-Print Network [OSTI]

    reefs, rock piles, and oil plat forms, once exploited only by commer cial interests, available-catch and resource assess ment data provides a more precise esti mate of the catch of juvenile red snapper by shrimp. Materials and Methods Fishing catch data were obtained from two sources: The commercial shrimp fleet

  6. Coevolution and the Red Queen E#ect Shape Virtual Plants Universitat Wurzburg, Lehrstuhl fur Informatik II

    E-Print Network [OSTI]

    Ebner, Marc

    Coevolution and the Red Queen E#ect Shape Virtual Plants Marc Ebner UniversitË?at W though fitness remains constant. We have tested this hypothesis using a population of virtual plants. The plants have to compete with each other for virtual sunlight. Plants are modeled using Lindenmayer systems

  7. Cost-effective Recovery of an Endangered Species: The Red-cockaded Woodpecker Ryan M. Finseth and Jon M. Conrad

    E-Print Network [OSTI]

    Sprott, Julien Clinton

    Cost-effective Recovery of an Endangered Species: The Red-cockaded Woodpecker Ryan M. Finseth; % translocation success prob delta = .05; % discount rate rho = 1/(1+delta); % discount factor c2 = 800; % cost of constructing one artificial cavity c1 = 3000; % cost of translocating one breeding pair r = .13; % intrinsic

  8. The effects of ruminal and duodenal casein infusion on dry matter (DM) intake of red clover silage and rumen pool

    E-Print Network [OSTI]

    Boyer, Edmond

    The effects of ruminal and duodenal casein infusion on dry matter (DM) intake of red clover silage) infused continuously into rumen (R), duodenum (D) or both (RD) on forage intake, milk yield, chewing, J Anim Sci, 70, 3528-3540). Ruminal casein infusion tended to increase (P

  9. A Highly Selective Turn-On Colorimetric, Red Fluorescent Sensor for Detecting Mobile Zinc in Living Cells

    E-Print Network [OSTI]

    Du, Pingwu

    We describe ZRL1, a turn-on colorimetric and red fluorescent zinc ion sensor. The Zn2+-promoted ring opening of the rhodamine spirolactam ring in ZRL1 evokes a 220-fold fluorescence turn-on response. In aqueous media, ZRL1 ...

  10. Volume 170, number 5,6 CHEMICAL PHYSICS LETTERS 20 July 1990 Nature of the red emission

    E-Print Network [OSTI]

    nitrogen trap, which removes residual chlorine gas. The pumping rate was about 30 Q/s. Some TeflonVolume 170, number 5,6 CHEMICAL PHYSICS LETTERS 20 July 1990 Nature of the red emission) on their sides. During an experiment the temperature of the solution was - 10°C and the pressure of the gas above

  11. Replacement of Fishmeal with Plant Feedstuffs in the Diet of Red Drum Sciaenops ocellatus: An Assessment of Nutritional Value 

    E-Print Network [OSTI]

    Moxley, Joseph

    2012-07-16

    the nutritional value of soy protein concentrate (SoyPC), barley protein concentrate (BarPC) and corn protein concentrate (CornPC) in the diet of red drum. Three sequential feeding trials were conducted; in these 50%, 75%, or 90% of the protein provided by Special...

  12. Evaluation of fisheries by-catch and by-product meals in diets for red drum (Sciaenops ocellatus) 

    E-Print Network [OSTI]

    Whiteman, Kasey

    2006-04-12

    , are increasingly in short supply for the manufacture of animal feeds, including feeds for farmed fish. Therefore, in this study, various by-catch and by-product meals of marine origin were evaluated with red drum (Sciaenops ocellatus), a carnivorous fish species...

  13. Hybridisation and introgression of exotic Cervus (nippon and canadensis) with red deer (Cervus elaphus) in the British Isles 

    E-Print Network [OSTI]

    Smith, Stephanie Lindsay

    2013-11-28

    Europe’s largest population of wild red deer (Cervus elaphus) resides in the British Isles and has been present since the end of the last ice age, c. 11,000BP. Since the mid-19th century, multiple introductions of Japanese ...

  14. La Accin Innovative Training Networks (ITN) tiene como objetivo formar, por medio de una red internacional de centros pblicos y

    E-Print Network [OSTI]

    Escolano, Francisco

    La Acción Innovative Training Networks (ITN) tiene como objetivo formar, por medio de una red - Nivell 3 Avda. Blasco Ibañez, 13 Valencia Horizonte2020 INNOVATIVE TRAINING NETWORKS Marie Sklodowska. Director General de Universidad, Estudios Superiores y Ciencia de la Conselleria de Eduación, Cultura y

  15. Effects of a high-risk environment on edge-drilling behavior: inference from Recent bivalves from the Red Sea

    E-Print Network [OSTI]

    Zuschin, Martin

    Effects of a high-risk environment on edge-drilling behavior: inference from Recent bivalves from the Red Sea Devapriya Chattopadhyay, Martin Zuschin, and Adam Tomasov´ych Abstract.--Edge-drilling is an unusual predation pattern in which a predatory gastropod drills a hole on the commissure between

  16. Mobilisation of arsenic from bauxite residue (red mud) affected soils: Effect of pH and redox conditions

    E-Print Network [OSTI]

    Burke, Ian

    ). Typically, it comprises residual iron oxides, quartz, sodium aluminosilicates, titanium dioxide, calciumMobilisation of arsenic from bauxite residue (red mud) affected soils: Effect of pH and redox elements, including arsenic. Aerobic and anaer- obic batch experiments were prepared using soils from near

  17. Mixing and Entrainment in the Red Sea Outflow Plume. Part I: Plume Structure HARTMUT PETERS AND WILLIAM E. JOHNS

    E-Print Network [OSTI]

    Fratantoni, David

    Mixing and Entrainment in the Red Sea Outflow Plume. Part I: Plume Structure HARTMUT PETERS mixing, and entrainment. Above the seafloor a 25­120-m-thick weakly stratified layer shows little dilution along the channel. Hence this bottom layer undergoes only weak entrainment. In contrast, a 35

  18. Improved red-response in thin film a-Si:H solar cells with soft-imprinted plasmonic back reflectors

    E-Print Network [OSTI]

    Polman, Albert

    Improved red-response in thin film a-Si:H solar cells with soft-imprinted plasmonic back reflectors is a critical component of solar cell development. In typical thin film cells the thickness of the absorbing of photovoltaic power. Thin film Si solar cells using hydrogenated amorphous Si a-Si:H and nano- crystalline Si nc

  19. THE SLOW DEATH (OR REBIRTH?) OF EXTENDED STAR FORMATION IN z {approx} 0.1 GREEN VALLEY EARLY-TYPE GALAXIES

    SciTech Connect (OSTI)

    Fang, Jerome J.; Faber, S. M. [UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Salim, Samir [Department of Astronomy, Indiana University, Bloomington, IN 47404 (United States); Graves, Genevieve J. [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Rich, R. Michael, E-mail: jjfang@ucolick.org [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)

    2012-12-10

    UV observations in the local universe have uncovered a population of early-type galaxies with UV flux consistent with low-level recent or ongoing star formation. Understanding the origin of such star formation remains an open issue. We present resolved UV-optical photometry of a sample of 19 Sloan Digital Sky Survey (SDSS) early-type galaxies at z {approx} 0.1 drawn from the sample originally selected by Salim and Rich to lie in the bluer part of the green valley in the UV-optical color-magnitude diagram as measured by the Galaxy Evolution Explorer (GALEX). Utilizing high-resolution Hubble Space Telescope (HST) far-UV imaging provides unique insight into the distribution of UV light in these galaxies, which we call ''extended star-forming early-type galaxies'' (ESF-ETGs) because of extended UV emission that is indicative of recent star formation. The UV-optical color profiles of all ESF-ETGs show red centers and blue outer parts. Their outer colors require the existence of a significant underlying population of older stars in the UV-bright regions. An analysis of stacked SDSS spectra reveals weak LINER-like emission in their centers. Using a cross-matched SDSS DR7/GALEX GR6 catalog, we search for other green valley galaxies with similar properties to these ESF-ETGs and estimate that Almost-Equal-To 13% of dust-corrected green valley galaxies of similar stellar mass and UV-optical color are likely ESF-candidates, i.e., ESF-ETGs are not rare. Our results are consistent with star formation that is gradually declining in existing disks, i.e., the ESF-ETGs are evolving onto the red sequence for the first time, or with rejuvenated star formation due to accreted gas in older disks provided that the gas does not disrupt the structure of the galaxy and the resulting star formation is not too recent and bursty. ESF-ETGs may typify an important subpopulation of galaxies that can linger in the green valley for up to several Gyrs, based on their resemblance to nearby gas-rich green valley galaxies with low-level ongoing star formation.

  20. Name Degree requirements -127 credits CURRICULUM CHECKSHEET Prerequisites are in bold italics

    E-Print Network [OSTI]

    ECE103 DC Circuit Analysis (MATH160) 3 ECE202 Circuit Theory Application (ECE103) 4 MATH161 Calculus Credits Grade ECE311 Linear Systems Analysis I (ECE202; MATH340 or MATH345) 3 ECE/STAT303 Intro Spring Spring ECE312 Linear Systems Analysis II (ECE311) 3 ECE402 Senior Design Project II (ECE401) 3 ECE

  1. PEP-II Asymmetric {ital B} Factory: R and D Results

    E-Print Network [OSTI]

    Dorfan, J.

    2011-01-01

    the prototype 476-MHz, 500-kW klystron, and advances in thecavity model, a 500·kW klystron operating at 476 MHz isneeded. The new klystron is based on a 353-MHz PEP klystron.

  2. NOx Formation in a Premixed Syngas Flame

    SciTech Connect (OSTI)

    Yilmaz, S.L. (University of Pittsburgh, Pittsburgh, PA); Givi, P. (University of Pittsburgh, Pittsburgh, PA); Strakey, P.; Casleton, K.

    2006-11-01

    Reduction of NOx is a subject of significant current interest in stationary gas turbines. The objective of this study is to examine the effects of turbulence on non-thermal NOx formation in a syngas flame. This is archived by a detailed parametric study via PDF simulations of a partially stirred reactor and a dumped axisymmetric premixed flame. Several different detailed and reduced kinetics schemes are considered. The simulated results demonstrate the strong dependence of combustion process on turbulence. It is shown that the amount of NOx formation is significantly influenced by the inlet conditions. That is, the turbulence intensity can be tweaked to attain optimal ultra-low NOx emissions at a given temperature.

  3. Reconstructing the Star Formation Histories of Galaxies

    E-Print Network [OSTI]

    Uta Fritze; Thomas Lilly

    2007-01-15

    We present a methodological study to find out how far back and to what precision star formation histories of galaxies can be reconstructed from CMDs, from integrated spectra and Lick indices, and from integrated multi-band photometry. Our evolutionary synthesis models GALEV allow to describe the evolution of galaxies in terms of all three approaches and we have assumed typical observational uncertainties for each of them and then investigated to what extent and accuracy different star formation histories can be discriminated. For a field in the LMC bar region with both a deep CMD from HST observations and a trailing slit spectrum across exactly the same field of view we could test our modelling results against real data.

  4. Low voltage arc formation in railguns

    DOE Patents [OSTI]

    Hawke, Ronald S. (Livermore, CA)

    1987-01-01

    A low voltage plasma arc is first established across the rails behind the projectile by switching a low voltage high current source across the rails to establish a plasma arc by vaporizing a fuse mounted on the back of the projectile, maintaining the voltage across the rails below the railgun breakdown voltage to prevent arc formation ahead of the projectile. After the plasma arc has been formed behind the projectile a discriminator switches the full energy bank across the rails to accelerate the projectile. A gas gun injector may be utilized to inject a projectile into the breech of a railgun. The invention permits the use of a gas gun or gun powder injector and an evacuated barrel without the risk of spurious arc formation in front of the projectile.

  5. Low voltage arc formation in railguns

    DOE Patents [OSTI]

    Hawke, R.S.

    1985-08-05

    A low voltage plasma arc is first established across the rails behind the projectile by switching a low voltage high current source across the rails to establish a plasma arc by vaporizing a fuse mounted on the back of the projectile, maintaining the voltage across the rails below the railgun breakdown voltage to prevent arc formation ahead of the projectile. After the plasma arc has been formed behind the projectile a discriminator switches the full energy bank across the rails to accelerate the projectile. A gas gun injector may be utilized to inject a projectile into the breech of a railgun. The invention permits the use of a gas gun or gun powder injector and an evacuated barrel without the risk of spurious arc formation in front of the projectile.

  6. Low voltage arc formation in railguns

    DOE Patents [OSTI]

    Hawke, R.S.

    1987-11-17

    A low voltage plasma arc is first established across the rails behind the projectile by switching a low voltage high current source across the rails to establish a plasma arc by vaporizing a fuse mounted on the back of the projectile, maintaining the voltage across the rails below the railgun breakdown voltage to prevent arc formation ahead of the projectile. After the plasma arc has been formed behind the projectile a discriminator switches the full energy bank across the rails to accelerate the projectile. A gas gun injector may be utilized to inject a projectile into the breech of a railgun. The invention permits the use of a gas gun or gun powder injector and an evacuated barrel without the risk of spurious arc formation in front of the projectile. 2 figs.

  7. Shocks, Star Formation, and the JWST

    E-Print Network [OSTI]

    Gusdorf, Antoine

    2015-01-01

    The interstellar medium (ISM) is constantly evolving due to unremitting injection of energy in various forms. Energetic radiation transfers energy to the ISM: from the UV photons, emitted by the massive stars, to X- and $\\gamma$-ray ones. Cosmic rays are another source of energy. Finally, mechanical energy is injected through shocks or turbulence. Shocks are ubiquitous in the interstellar medium of galaxies. They are associated to star formation (through jets and bipolar outflows), life (via stellar winds), and death (in AGB stellar winds or supernovae explosion). The dynamical processes leading to the formation of molecular clouds also generate shocks where flows of interstellar matter collide. Because of their ubiquity, the study of interstellar shocks is also a useful probe to the other mechanisms of energy injection in the ISM. This study must be conducted in order to understand the evolution of the ISM as a whole, and to address various questions: what is the peculiar chemistry associated to shocks, and ...

  8. Nanodot formation induced by femtosecond laser irradiation

    SciTech Connect (OSTI)

    Abere, M. J.; Kang, M.; Goldman, R. S.; Yalisove, S. M. [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Chen, C. [Applied Physics Program, University of Michigan, Ann Arbor, Michigan 48109 (United States); Rittman, D. R. [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109 (United States); Phillips, J. D. [Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109 (United States); Torralva, B. [Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2014-10-20

    The femtosecond laser generation of ZnSe nanoscale features on ZnSe surfaces was studied. Irradiation with multiple exposures produces 10–100?nm agglomerations of nanocrystalline ZnSe while retaining the original single crystal structure of the underlying material. The structure of these nanodots was verified using a combination of scanning transmission electron microscopy, scanning electron microscopy, and atomic force microscopy. The nanodots continue to grow hours after irradiation through a combination of bulk and surface diffusion. We suggest that in nanodot formation the result of ultrafast laser induced point defect formation is more than an order of magnitude below the ZnSe ultrafast melt threshold fluence. This unique mechanism of point defect injection will be discussed.

  9. Naked Singularity formation in scalar field collapse

    E-Print Network [OSTI]

    Rituparno Goswami; Pankaj S Joshi

    2004-10-28

    We construct here a class of collapsing scalar field models with a non-zero potential, which result in a naked singularity as collapse end state. The weak energy condition is satisfied by the collapsing configuration. It is shown that physically it is the rate of collapse that governs either the black hole or naked singularity formation as the final state for the dynamical evolution. It is seen that the cosmic censorship is violated in dynamical scalar field collapse.

  10. Galactosynthesis: Halo Histories, Star Formation, and Disks

    E-Print Network [OSTI]

    Ari Buchalter; Raul Jimenez; Marc Kamionkowski

    2000-06-01

    We investigate the effects of a variety of ingredients that must enter into a realistic model for disk-galaxy formation, focusing primarily on the Tully-Fisher (TF) relation and its scatter in several wavebands. Our main findings are: (a) the slope, normalization, and scatter of the TF relation across various wavebands is determined {\\em both} by halo properties and star formation in the disk; (b) TF scatter owes primarily to the spread in formation redshifts. The scatter can be measurably reduced by chemical evolution, and also in some cases by the weak anti-correlation between peak height and spin; (c) multi-wavelength constraints can be important in distinguishing between models which appear to fit the TF relation in I or K; (d) successful models seem to require that the bulk of disk formation cannot occur too early (z>2) or too late (z<0.5), and are inconsistent with high values of $\\Omega_0$; (e) a realistic model with the above ingredients can reasonably reproduce the observed z=0 TF relation in {\\em all} bands (B, R, I, and K). It can also account for the z=1 B-band TF relation and yield rough agreement with the local B and K luminosity functions and B-band surface-brightness--magnitude relation. The remarkable agreement with observations suggests that the amount of gas that is expelled or poured into a disk galaxy must be small, and that the specific angular momentum of the baryons must roughly equal that of the halo; there is little room for angular momentum transfer. In an appendix we present analytic fits to stellar-population synthesis models.

  11. Carboxylic acid accelerated formation of diesters

    DOE Patents [OSTI]

    Tustin, G.C.; Dickson, T.J.

    1998-04-28

    This invention pertains to accelerating the rate of formation of 1,1-dicarboxylic esters from the reaction of an aldehyde with a carboxylic acid anhydride or a ketene in the presence of a non-iodide containing a strong Bronsted acid catalyst by the addition of a carboxylic acid at about one bar pressure and between about 0 and 80 C in the substantial absence of a hydrogenation or carbonylation catalyst.

  12. Galaxy Structure, Dark Matter, and Galaxy Formation

    E-Print Network [OSTI]

    David H. Weinberg

    1996-10-01

    The structure of galaxies, the nature of dark matter, and the physics of galaxy formation were the interlocking themes of DM 1996: Dark and Visible Matter in Galaxies and Cosmological Implications. In this conference summary report, I review recent observational and theoretical advances in these areas, then describe highlights of the meeting and discuss their implications. I include as an appendix the lyrics of The Dark Matter Rap: A Cosmological History for the MTV Generation.

  13. Production from multiple zones of a tar sands formation

    DOE Patents [OSTI]

    Karanikas, John Michael; Vinegar, Harold J

    2013-02-26

    A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. Fluids are produced from the formation through at least one production well that is located in at least two zones in the formation. The first zone has an initial permeability of at least 1 darcy. The second zone has an initial of at most 0.1 darcy. The two zones are separated by a substantially impermeable barrier.

  14. Pentium Pro inside: I. a treecode at 430 Gigaflops on ASCI Red; II. price/performance of $50/Mflop on Loki and Hyglac

    SciTech Connect (OSTI)

    Warren, M.S. [Los Alamos National Lab., NM (United States); Becker, D.J. [Goddard Space Flight Center, Greenbelt, MD (United States); Sterling, T.; Salmon, J.K. [California Inst. of Tech., Pasadena, CA (United States). Center for Advanced Computing Research; Goda, M.P. [Los Alamos National Lab., NM (United States); Winckelmans, G.S. [Universite Catholique de Louvain, Louvain (Belgium). Mechanical Engineering Dept.

    1997-06-01

    As an entry for the 1997 Gordon Bell performance prize, we present results from two methods of solving the gravitational N-body problem on the Intel Teraflops system at Sandia National Laboratory (ASCI Red). The first method, an O(N{sup 2}) algorithm, obtained 635 Gigaflops for a 1 million particle problem on 6800 Pentium Pro processors. The second solution method, a tree-code which scales as O(N log N), sustained 170 Gigaflops over a continuous 9.4 hour period on 4096 processors, integrating the motion of 322 million mutually interacting particles in a cosmology simulation, while saving over 100 Gigabytes of raw data. Additionally, the tree-code sustained 430 Gigaflops on 6800 processors for the first 5 time-steps of that simulation. This tree-code solution is approximately 105 times more efficient than the O(N{sup 2}) algorithm for this problem. As an entry for the 1997 Gordon Bell price/performance prize, we present two calculations from the disciplines of astrophysics and fluid dynamics. The simulations were performed on two 16 Pentium Pro processor Beowulf-class computers (Loki and Hyglac) constructed entirely from commodity personal computer technology, at a cost of roughly $50k each in September, 1996. The price of an equivalent system in August 1997 is less than $30. At Los Alamos, Loki performed a gravitational tree-code N-body simulation of galaxy formation using 9.75 million particles, which sustained an average of 879 Mflops over a ten day period, and produced roughly 10 Gbytes of raw data.

  15. On star formation in primordial protoglobular clouds

    E-Print Network [OSTI]

    Paolo Padoan; Raul Jimenez; Bernard Jones

    1996-04-11

    Using a new physical model for star formation (Padoan 1995) we have tested the possibility that globular clusters (GCs) are formed from primordial mass fluctuations, whose mass scale ($10^8$ - $10^9$ M$_{\\odot}$) is selected out of a CDM spectrum by the mechanism of non-equilibrium formation of $H_2$. We show that such clouds are able to convert about 0.003 of their total mass into a bound system (GC) and about 0.02 into halo stars. The metal enriched gas is dispersed away from the GC by supernova explosions and forms the galactic disk. These mass ratios between GCs, halo and disk depend on the predicted IMF which is a consequence of the universal statistics of fluid turbulence. They also depend on the ratio of baryonic over non-baryonic mass ,$X_b$, and are comparable with the values observed in typical spiral galaxies for $X_b \\approx 0.1-0.2$. The computed mass and radius for a GC ( $5\\times 10^5$ M$_{\\odot}$ and 30 pc) are in good agreement with the average values in the Galaxy. The model predicts an exponential cut off in the stellar IMF below 0.1 M$_{\\odot}$ in GCs and 0.6 M$_{\\odot}$ in the halo. The quite massive star formation in primordial clouds leads to a large number of supernovae and to a high blue luminosity during the first two Gyr of the life of every galaxy.

  16. General relativity and cosmic structure formation

    E-Print Network [OSTI]

    Julian Adamek; David Daverio; Ruth Durrer; Martin Kunz

    2015-09-05

    Numerical simulations are a versatile tool providing insight into the complicated process of structure formation in cosmology. This process is mainly governed by gravity, which is the dominant force on large scales. To date, a century after the formulation of general relativity, numerical codes for structure formation still employ Newton's law of gravitation. This approximation relies on the two assumptions that gravitational fields are weak and that they are only sourced by non-relativistic matter. While the former appears well justified on cosmological scales, the latter imposes restrictions on the nature of the "dark" components of the Universe (dark matter and dark energy) which are, however, poorly understood. Here we present the first simulations of cosmic structure formation using equations consistently derived from general relativity. We study in detail the small relativistic effects for a standard {\\Lambda}CDM cosmology which cannot be obtained within a purely Newtonian framework. Our particle-mesh N-body code computes all six degrees of freedom of the metric and consistently solves the geodesic equation for particles, taking into account the relativistic potentials and the frame-dragging force. This conceptually clean approach is very general and can be applied to various settings where the Newtonian approximation fails or becomes inaccurate, ranging from simulations of models with dynamical dark energy or warm/hot dark matter to core collapse supernova explosions.

  17. Stratigraphy of the Calvert Bluff Formation of the Wilcox Group, Brazos County, Texas 

    E-Print Network [OSTI]

    May, Audrey Gail

    1994-01-01

    Wilcox Group sediments are classified into three main formations: a lower Hooper Formation, a middle Simsboro Formation, and an upper Calvert Bluff Formation. The Calvert Bluff and Simsboro formations have been interpreted ...

  18. Dynamic and thermal control of an electromagnetic formation flight testbed

    E-Print Network [OSTI]

    Neave, Matthew D. (Matthew David)

    2005-01-01

    Formation flight of multiple spacecraft is an emerging method for completing complex space missions in an efficient manner. A limitation found in maintaining such formations is the need for precise control at all times. ...

  19. Development of Large Format Lithium Ion Cells with Higher Energy...

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

    Large Format Lithium Ion Cells with Higher Energy Density Exceeding 500WhL Development of Large Format Lithium Ion Cells with Higher Energy Density Exceeding 500WhL 2012 DOE...

  20. A first site of galaxy cluster formation: complete spectroscopy...

    Office of Scientific and Technical Information (OSTI)

    A first site of galaxy cluster formation: complete spectroscopy of a protocluster at z 6.01 Citation Details In-Document Search Title: A first site of galaxy cluster formation:...