National Library of Energy BETA

Sample records for multicolor result formats

  1. Constructive Lower Bounds on Classical Multicolor Ramsey Numbers

    E-Print Network [OSTI]

    Radziszowski, Stanislaw P.

    Constructive Lower Bounds on Classical Multicolor Ramsey Numbers Xu Xiaodong and Xie Zheng bounds for classical multicolor Ramsey numbers, first by giving a short overview of past results-diagonal multicolor Ramsey numbers. In particular, we improve several lower bounds for Rk(4) and Rk(5) for some small

  2. Multicolor Bound Soliton Molecule

    E-Print Network [OSTI]

    Luo, Rui; Lin, Qiang

    2015-01-01

    We show a new class of bound soliton molecule that exists in a parametrically driven nonlinear optical cavity with appropriate dispersion characteristics. The composed solitons exhibit distinctive colors but coincide in time and share a common phase, bound together via strong inter-soliton four-wave mixing and Cherenkov radiation. The multicolor bound soliton molecule shows intriguing spectral locking characteristics and remarkable capability of spectrum management to tailor soliton frequencies, which may open up a great avenue towards versatile generation and manipulation of multi-octave spanning phase-locked Kerr frequency combs, with great potential for applications in frequency metrology, optical frequency synthesis, and spectroscopy.

  3. Multicolored Vertical Silicon Nanowires

    SciTech Connect (OSTI)

    Seo, Kwanyong; Wober, Munib; Steinvurzel, P.; Schonbrun, E.; Dan, Yaping; Ellenbogen, T.; Crozier, K. B.

    2011-04-13

    We demonstrate that vertical silicon nanowires take on a surprising variety of colors covering the entire visible spectrum, in marked contrast to the gray color of bulk silicon. This effect is readily observable by bright-field microscopy, or even to the naked eye. The reflection spectra of the nanowires each show a dip whose position depends on the nanowire radii. We compare the experimental data to the results of finite difference time domain simulations to elucidate the physical mechanisms behind the phenomena we observe. The nanowires are fabricated as arrays, but the vivid colors arise not from scattering or diffractive effects of the array, but from the guided mode properties of the individual nanowires. Each nanowire can thus define its own color, allowing for complex spatial patterning. We anticipate that the color filter effect we demonstrate could be employed in nanoscale image sensor devices.

  4. result formats | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan)data bookresult formats Home Jweers's picture Submitted

  5. Constructive Lower Bounds on Classical Multicolor Ramsey Numbers

    E-Print Network [OSTI]

    Radziszowski, Stanislaw P.

    Constructive Lower Bounds on Classical Multicolor Ramsey Numbers Xu Xiaodong and Xie Zheng studies lower bounds for classical multicolor Ramsey numbers, #12;rst by giving a short overview of past diagonal and o#11;-diagonal multicolor Ramsey numbers. In particular, we improve several lower bounds for R

  6. Multicolor, High Efficiency, Nanotextured LEDs

    SciTech Connect (OSTI)

    Jung Han; Arto Nurmikko

    2011-09-30

    We report on research results in this project which synergize advanced material science approaches with fundamental optical physics concepts pertaining to light-matter interaction, with the goal of solving seminal problems for the development of very high performance light emitting diodes (LEDs) in the blue and green for Solid State Lighting applications. Accomplishments in the duration of the contract period include (i) heteroepitaxy of nitrogen-polar LEDs on sapphire, (ii) heteroepitaxy of semipolar (11{bar 2}2) green LEDs on sapphire, (iii) synthesis of quantum-dot loaded nanoporous GaN that emits white light without phosphor conversion, (iv) demonstration of the highest quality semipolar (11{bar 2}2) GaN on sapphire using orientation-controlled epitaxy, (v) synthesis of nanoscale GaN and InGaN medium, and (vi) development of a novel liftoff process for manufacturing GaN thin-film vertical LEDs. The body of results is presented in this report shows how a solid foundation has been laid, with several noticeable accomplishments, for innovative research, consistent with the stated milestones.

  7. Multicolor Photometry of the Vela Pulsar

    E-Print Network [OSTI]

    R. P. Mignani; P. A. Caraveo

    2001-07-02

    Multicolor photometry of the Vela pulsar (PSR B0833-45), updated by recent HST/WFPC2 observations obtained in the 555W, 675W and 814W filters, is presented. The available data provide the best characterization so far of the pulsar spectral shape, which is dominated by a flat power law continuum with spectral index \\alpha = -0.2 +/- 0.2, consistent with the extrapolation in the optical domain of the power law component of the X-ray spectrum detected by Chandra. In addition, a marginally significant dip (~ 3 sigma) seems to be present at about 6500 AA. Spectroscopic observations with the VLT, now in progress, will undoubtly provide a much better assessment of the reality and characteristics of this feature.

  8. Single-fiber multi-color pyrometry

    DOE Patents [OSTI]

    Small, IV, Ward; Celliers, Peter

    2004-01-27

    This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

  9. Single-fiber multi-color pyrometry

    DOE Patents [OSTI]

    Small, IV, Ward (Livermore, CA); Celliers, Peter (Berkeley, CA)

    2000-01-01

    This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

  10. Interferometric source of multi-color, multi-beam entangled photons with mirror and mixer

    DOE Patents [OSTI]

    Dress, William B.; Kisner, Roger A.; Richards, Roger K.

    2004-06-01

    53 Systems and methods are described for an interferometric source of multi-color, multi-beam entangled photons. An apparatus includes: a multi-refringent device optically coupled to a source of coherent energy, the multi-refringent device providing a beam of multi-color entangled photons; a condenser device optically coupled to the multi-refringent device, the condenser device i) including a mirror and a mixer and ii) converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam; a tunable phase adjuster optically coupled to the condenser device, the tunable phase adjuster changing a phase of at least a portion of the converged multi-color entangled photon beam to generate a first interferometeric multi-color entangled photon beam; and a beam splitter optically coupled to the condenser device, the beam splitter combining the first interferometeric multi-color entangled photon beam with a second interferometric multi-color entangled photon beam.

  11. Star Formation in Disk Galaxies. III. Does stellar feedback result in cloud death?

    E-Print Network [OSTI]

    Tasker, Elizabeth J; Pudritz, Ralph

    2015-01-01

    Stellar feedback, star formation and gravitational interactions are major controlling forces in the evolution of Giant Molecular Clouds (GMCs). To explore their relative roles, we examine the properties and evolution of GMCs forming in an isolated galactic disk simulation that includes both localised thermal feedback and photoelectric heating. The results are compared with the three previous simulations in this series which consists of a model with no star formation, star formation but no form of feedback and star formation with photoelectric heating in a set with steadily increasing physical effects. We find that the addition of localised thermal feedback greatly suppresses star formation but does not destroy the surrounding GMC, giving cloud properties closely resembling the run in which no stellar physics is included. The outflows from the feedback reduce the mass of the cloud but do not destroy it, allowing the cloud to survive its stellar children. This suggests that weak thermal feedback such as the low...

  12. AMERICAN ENTOMOLOGIST Volume 50 Number 3 153 he multicolored Asian ladybeetle, Harmo-

    E-Print Network [OSTI]

    Landis, Doug

    are highlighted. Here we discuss some recent studies exploring the role of H. axyridis in biocontrol of soybean of Multicolored Asian Lady Beetle as a Biological Control Agent Douglas A. Landis, Tyler B. Fox, and Alejandro C

  13. Multicolor online degree Ramsey numbers of trees William B. Kinnersley # and Douglas B. West +

    E-Print Network [OSTI]

    West, Douglas B.

    Multicolor on­line degree Ramsey numbers of trees William B. Kinnersley # and Douglas B. West + University of Illinois, Urbana IL. October 24, 2011; revised May 25, 2012 Abstract In the on­line Ramsey game can ensure that a monochromatic G arises. The s­color on­line degree Ramsey number of G, denoted š R

  14. Multicolor on-line degree Ramsey numbers of trees William B. Kinnersley

    E-Print Network [OSTI]

    West, Douglas B.

    Multicolor on-line degree Ramsey numbers of trees William B. Kinnersley and Douglas B. West University of Illinois, Urbana IL. October 24, 2011; revised May 25, 2012 Abstract In the on-line Ramsey game can ensure that a monochromatic G arises. The s-color on-line degree Ramsey number of G, denoted °R

  15. Multicolor Ramsey Numbers Involving K3 + e and K4 -e

    E-Print Network [OSTI]

    Radziszowski, Stanislaw P.

    On Some Multicolor Ramsey Numbers Involving K3 + e and K4 - e Daniel S. Shetler Department: The Ramsey number R(G1, G2, G3) is the smallest positive in- teger n such that for all 3-colorings color. We study the bounds on various 3-color Ramsey numbers R(G1, G2, G3), where Gi {K3, K3 + e, K4

  16. NEPHELINE FORMATION STUDY FOR SLUDGE BATCH 4: PHASE 3 EXPERIMENTAL RESULTS

    SciTech Connect (OSTI)

    Fox, K

    2006-05-01

    This Phase 3 study was undertaken to complement the previous phases of the nepheline formation studies1, 2 by continuing the investigation into the ability of the nepheline discriminator to predict the occurrence of nepheline crystallization in Sludge Batch 4 (SB4) glasses and into the impact of such phases on the durability of the SB4 glasses. The Phase 3 study had two primary objectives. The first was to continue to demonstrate the ability of the discriminator value to adequately predict the nepheline formation potential for specific glass systems of interest. The second was to generate additional data that have a high probability of supporting the SB4 variability study. To support these two objectives, sixteen glasses were selected based on the most recent SB4 compositional projection, Case 15C Blend 1.3 Four different frits were included, based on previous assessments of projected operating windows and melt rate,4, 5 with four WLs selected for each frit. Eight of these frit-sludge combinations covered WLs which tightly bound the nepheline discriminator value of 0.62, with the intent of refining this value to a level of confidence where it can be incorporated into offline administrative controls and/or the Process Composition Control System (PCCS) to support Slurry Mix Evaporator (SME) acceptability decisions. The remaining eight frit-sludge combinations targeted lower WLs (35 and 40%) and were prepared and analyzed to contribute needed data to the ComPro database6 to support a potential variability study for SB4.

  17. FORMATION OF DEPTH HOAR RESULTING FROM THERMAL OPTIMIZATION OF SNOW MICROSTRUCTURE

    E-Print Network [OSTI]

    necessary to induce the corresponding flow is a measure of the system efficiency. Kinetic metamorphism to increase the heat transport efficiency. The optimal geometric configuration is a system of well thermal energy through the ice, the system became more efficient. This progression resulted from

  18. Formation of S0 galaxies through mergers. V. Antitruncated stellar discs resulting from major mergers

    E-Print Network [OSTI]

    Borlaff, Alejandro; Rodrguez-Prez, Cristina; Querejeta, Miguel; Tapia, Trinidad; Prez-Gonzlez, Pablo G; Zamorano, Jaime; Gallego, Jess; Beckman, John

    2014-01-01

    Lenticular galaxies (S0s) are more likely to host antitruncated (Type-III) stellar discs than galaxies of later Hubble types. Major mergers are popularly considered too violent mechanisms to form these breaks. We have investigated whether major mergers can result into S0-like remnants with realistic antitruncated stellar discs or not. We have analysed 67 relaxed S0 and E/S0 remnants resulting from dissipative N-body simulations of major mergers from the GalMer database. We have simulated realistic R-band surface brightness profiles of the remnants to identify those with antitruncated stellar discs. Their inner and outer discs and the breaks are quantitatively characterized to compare with real data. Nearly 70% of our S0-like remnants are antitruncated, meaning that major mergers that result in S0s have a high probability of producing Type-III stellar discs. Our remnants lie on top of the extrapolations of the observational trends (towards brighter magnitudes and higher break radii) in several photometric diag...

  19. THE MULTI-COLOR LIGHT CURVES OF THE W UMa TYPE CONTACT BINARY EP ANDROMEDAE

    SciTech Connect (OSTI)

    Liao, W.-P.; Qian, S.-B.; Li, K.; He, J.-J.; Zhao, E.-G.; Zhou, X., E-mail: liaowp@ynao.ac.cn [Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming (China)

    2013-10-01

    New multi-color CCD photometric light curves of the eclipsing binary EP And were obtained over six nights in 2006, 2011, and 2012. Using the Wilson-Devinney code, we computed the photometric elements of this system. It was discovered that EP And is a W-type W UMa contact binary system with a mass ratio of q = 2.685 and a degree of contact factor f = 24.9%, rather than an A-type system. Combining 28 newly determined times of minimum light derived from 1999 to 2012 with others collected from the literature, a long-term increase (dP/dt = +5.22 Multiplication-Sign 10{sup -8} days yr{sup -1}) with a sinusoidal variation (A = 0.0109 days; T = 40.89 yr) in the orbital period was found. The orbital period secular increases may be interpreted as conservative mass transfer from the less massive component to the more massive one, and cyclic variations of the orbital period may be caused by the light-travel time effect through the presence of a third body. The evolutionary status and the age of the system are also discussed.

  20. Formation of gas-phase peroxides in a rural atmosphere: An interpretation of the recent SOS/SERON field results

    SciTech Connect (OSTI)

    Lee, J.H.; Tang, I.N. [Brookhaven National Lab., Upton, NY (United States); Weinstein-Lloyd, J.B. [State Univ. of New York, Old Westbury, NY (United States). Chemistry/Physics Dept.

    1993-09-01

    Hydrogen perioxide (H{sub 2}O{sub 2}) and certain organic peroxides such as hydroxymethyl-hydroperoxide (HMHP), are gas-phase oxidants present in the atmosphere at ppbv concentration levels. These oxidants play an important role in atmospheric chemistry. In addition, precipitation containing H{sub 2}O{sub 2} is toxic to trees, and it has also been suggested that organic peroxides formed presumably by ozone reactions with biogenic alkenes are responsible for leaf disorders. Recently, we have developed a nonenzymatic method or aqueous-phase H{sub 2}O{sub 2} measurement, using Fenton reagent and fluorescent hydroxy- benzoic acid. The new method, in conjunction with the well-known method of p-hydroxyphenylacetic acid and horseradish peroxidase for total peroxides, and together with an improved gas scrubber to mitigate sampling line problems, has been successfully deployed in recent SOS/SERON field measurements in rural Georgia. For the first time, continuously measured and speciated gas-phase peroxide data have become available, making it possible to examine some aspects of the ozone chemistry leading to the formation of these oxidants. It is observed that daily H{sub 2}O{sub 2} maximum frequently occurs at a different time than does HMHP, and that H{sub 2}O{sub 2} concentration, but not HMHP, tends to correlate with solar fluxes measured at the same location. These findings seem to indicate that the formation mechanisms for H{sub 2}O{sub 2} and organic peroxides are basically different. It is likely that H{sub 2}O{sub 2} is formed from radical-radical recombination, while HMHP is formed by ozone-alkene reactions. Since the gas-phase ozone-alkene reactions are usually too slow to account for the diurnal concentration variations observed for HMHP, heterogeneous processes involving ozone and alkenes are also a possibility.

  1. MoO3 as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes

    SciTech Connect (OSTI)

    Liu, R.; Xu, Chun; Biswas, Rana; Shinar, Joseph; Shinar, Ruth

    2011-09-01

    Multicolor microcavity ({mu}C) organic light-emitting diode (OLED) arrays were fabricated simply by controlling the hole injection and spacer MoO{sub 3} layer thickness. The normal emission was tunable from {approx}490 to 640 nm and can be further expanded. A compact, integrated spectrometer with two-dimensional combinatorial arrays of {mu}C OLEDs was realized. The MoO{sub 3} yields more efficient and stable devices, revealing a new breakdown mechanism. The pixel current density reaches {approx}4 A/cm{sup 2} and a maximal normal brightness {approx}140 000 Cd/m{sup 2}, which improves photoluminescence-based sensing and absorption measurements.

  2. Supernova Explosions of Super-Asymptotic Giant Branch Stars: Multicolor Light Curves of Electron-Capture Supernovae

    E-Print Network [OSTI]

    Tominaga, Nozomu; Nomoto, Ken'ichi

    2013-01-01

    An electron-capture supernova (ECSN) is a core-collapse supernova explosion of a super-asymptotic giant branch (SAGB) star with a main-sequence mass $M_{\\rm ms}\\sim7-9.5M_\\odot$. The explosion takes place in accordance with core bounce and subsequent neutrino heating and is a unique example successfully produced by first-principle simulation. This allows us to derive a first self-consistent multicolor light curves of a core-collapse supernova. Adopting the explosion properties derived by the first-principle simulation, i.e., the low explosion energy of $1.5\\times10^{50}$ erg and the small $^{56}$Ni mass of $2.5\\times10^{-3}M_\\odot$, we perform a multigroup radiation hydrodynamics calculation of ECSNe and present multicolor light curves of ECSNe of SAGB stars with various envelope mass and hydrogen abundance. We demonstrate that a shock breakout has peak luminosity of $L\\sim2\\times10^{44}$ erg/s and can evaporate circumstellar dust up to $R\\sim10^{17}$ cm for a case of carbon dust, that plateau luminosity and ...

  3. The Recent Cluster Formation Histories of NGC 5253 and NGC 3077: Environmental Impact on Star Formation

    E-Print Network [OSTI]

    J. Harris; D. Calzetti; J. S. Gallagher III; D. A. Smith; C. J. Conselice

    2003-11-20

    We present multicolor photometry of bright star cluster candidates in the nearby starburst galaxies NGC 3077 and NGC 5253, observed with the Hubble Space Telescope Wide Field and Planetary Camera 2 in both broadband (F300W, F547M and F814W) and narrowband (F487N and F656N) filters. By comparing the photometry with theoretical population synthesis models, we estimate the age and mass of each star cluster, which provides constraints on the recent star formation histories of the host galaxies. We compare the star cluster populations in these dwarf starburst galaxies to those of the nuclear starburst in the barred spiral M 83, and discuss implications for our understanding of the nature and evolution of starburst events.

  4. Luminosity Functions And Evolution Of Blue Galaxies In A Deep Multicolor CCD Field Survey

    E-Print Network [OSTI]

    Charles T. Liu; Richard F. Green; Patrick B. Hall; Patrick S. Osmer

    1998-06-02

    A complete sample of 659 field galaxies with 17.0$Green 1998). Total number counts of the galaxies in the U-band give a count slope d(logN)/dM = 0.55 $\\pm$ 0.05, consistent with previous studies. The 545 galaxies in the sample classified as spectral type Sbc or bluer are analyzed for signs of evolution with redshift, and for unusual star formation histories. The U-band luminosity function of these blue galaxies at 0.02$energy distributions indicating strong starburst activity, is observed at z$\\gtrsim$0.3 but not at z$<$0.3. This population is confirmed via spectroscopy of part of the sample. These may be galaxies temporarily brightened by global starbursts, which subsequently fade and redden at lower redshifts.

  5. MULTI-COLOR OPTICAL AND NEAR-INFRARED LIGHT CURVES OF 64 STRIPPED-ENVELOPE CORE-COLLAPSE SUPERNOVAE

    SciTech Connect (OSTI)

    Bianco, F. B.; Modjaz, M. [Center for Cosmology and Particle Physics, New York University, 4 Washington Place, New York, NY 10003 (United States); Hicken, M.; Friedman, A.; Kirshner, R. P.; Challis, P.; Marion, G. H. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Bloom, J. S. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Wood-Vasey, W. M. [PITT PACC, Department of Physics and Astronomy, 3941 O'Hara Street, University of Pittsburgh, Pittsburgh, PA 15260 (United States); Rest, A., E-mail: fb55@nyu.edu [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

    2014-08-01

    We present a densely sampled, homogeneous set of light curves of 64 low-redshift (z ? 0.05) stripped-envelope supernovae (SNe of Type IIb, Ib, Ic, and Ic-BL). These data were obtained between 2001 and 2009 at the Fred L. Whipple Observatory (FLWO) on Mount Hopkins in Arizona, with the optical FLWO 1.2 m and the near-infrared (NIR) Peters Automated Infrared 1.3 m telescopes. Our data set consists of 4543 optical photometric measurements on 61 SNe, including a combination of U BV RI, U BV r{sup ?}i{sup ?}, and u{sup ?} BV r{sup ?}i{sup ?}, and 1919 JHK{sub s} NIR measurements on 25 SNe. This sample constitutes the most extensive multi-color data set of stripped-envelope SNe to date. Our photometry is based on template-subtracted images to eliminate any potential host-galaxy light contamination. This work presents these photometric data, compares them with data in the literature, and estimates basic statistical quantities: date of maximum, color, and photometric properties. We identify promising color trends that may permit the identification of stripped-envelope SN subtypes from their photometry alone. Many of these SNe were observed spectroscopically by the Harvard-Smithsonian Center for Astrophysics (CfA) SN group, and the spectra are presented in a companion paper. A thorough exploration that combines the CfA photometry and spectroscopy of stripped-envelope core-collapse SNe will be presented in a follow-up paper.

  6. VALIDATION AND RESULTS OF A PSEUDO-MULTI-ZONE COMBUSTION TRAJECTORY PREDICTION MODEL FOR CAPTURING SOOT AND NOX FORMATION ON A MEDIUM DUTY DIESEL ENGINE

    SciTech Connect (OSTI)

    Bittle, Joshua A.; Gao, Zhiming; Jacobs, Timothy J.

    2013-01-01

    A pseudo-multi-zone phenomenological model has been created with the ultimate goal of supporting efforts to enable broader commercialization of low temperature combustion modes in diesel engines. The benefits of low temperature combustion are the simultaneous reduction in soot and nitric oxide emissions and increased engine efficiency if combustion is properly controlled. Determining what qualifies as low temperature combustion for any given engine can be difficult without expensive emissions analysis equipment. This determination can be made off-line using computer models or through factory calibration procedures. This process could potentially be simplified if a real-time prediction model could be implemented to run for any engine platform this is the motivation for this study. The major benefit of this model is the ability for it to predict the combustion trajectory, i.e. local temperature and equivalence ratio in the burning zones. The model successfully captures all the expected trends based on the experimental data and even highlights an opportunity for simply using the average reaction temperature and equivalence ratio as an indicator of emissions levels alone - without solving formation sub-models. This general type of modeling effort is not new, but a major effort was made to minimize the calculation duration to enable implementation as an input to real-time next-cycle engine controller Instead of simply using the predicted engine out soot and NOx levels, control decisions could be made based on the trajectory. This has the potential to save large amounts of calibration time because with minor tuning (the model has only one automatically determined constant) it is hoped that the control algorithm would be generally applicable.

  7. 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

  8. Hubble Tarantula Treasury Project. III. Photometric Catalog and Resulting Constraints on the Progression of Star Formation in the 30 Doradus Region

    E-Print Network [OSTI]

    Sabbi, E; Anderson, J; Cignoni, M; van der Marel, R P; Zaritsky, D; de Marchi, G; Panagia, N; Gouliermis, D A; Grebel, E K; Gallager, J S; Smith, L J; Sana, H; Aloisi, A; Tosi, M; Evans, C J; Arab, H; Boyer, M; de Mink, S E; Gordon, K; Koekemoer, A M; Larsen, S S; Ryon, J E; Zeidler, P

    2015-01-01

    We present and describe the astro-photometric catalog of more than 800,000 sources found in the Hubble Tarantula Treasury Project (HTTP). HTTP is a Hubble Space Telescope (HST) Treasury program designed to image the entire 30 Doradus region down to the sub-solar (~0.5 solar masses) mass regime using the Wide Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS). We observed 30 Doradus in the near ultraviolet (F275W, F336W), optical (F555W, F658N, F775W), and near infrared (F110W, F160W) wavelengths. The stellar photometry was measured using point-spread function (PSF) fitting across all the bands simultaneously. The relative astrometric accuracy of the catalog is 0.4 mas. The astro-photometric catalog, results from artificial star experiments and the mosaics for all the filters are available for download. Color-magnitude diagrams are presented showing the spatial distributions and ages of stars within 30 Dor as well as in the surrounding fields. HTTP provides the first rich and statistically signifi...

  9. OpenEI Community - result formats

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly Smart Grid Data available for downloadGRR 3rd Quarter -/0 en

  10. Help:FormattingResults | 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'SHeavy ElectricalsFTLTechnology Srl Jump to:source HistoryFacebook icon

  11. Distinguishing triplet energy transfer and trap-assisted recombination in multi-color organic light-emitting diode with an ultrathin phosphorescent emissive layer

    SciTech Connect (OSTI)

    Xue, Qin, E-mail: xueqin19851202@163.com; Liu, Shouyin [Department of Physical Science and Technology, Central China Normal University, Wuhan 430079 (China); Xie, Guohua; Chen, Ping; Zhao, Yi; Liu, Shiyong [State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China)

    2014-03-21

    An ultrathin layer of deep-red phosphorescent emitter tris(1-phenylisoquinoline) iridium (III) (Ir(piq){sub 3}) is inserted within different positions of the electron blocking layer fac-tris (1-phenylpyrazolato-N,C{sup 2?})-iridium(III) (Ir(ppz){sub 3}) to distinguish the contribution of the emission from the triplet exciton energy transfer/diffusion from the adjacent blue phosphorescent emitter and the trap-assisted recombination from the narrow band-gap emitter itself. The charge trapping effect of the narrow band-gap deep-red emitter which forms a quantum-well-like structure also plays a role in shaping the electroluminescent characteristics of multi-color organic light-emitting diodes. By accurately controlling the position of the ultrathin sensing layer, it is considerably easy to balance the white emission which is quite challenging for full-color devices with multiple emission zones. There is nearly no energy transfer detectable if 7 nm thick Ir(ppz){sub 3} is inserted between the blue phosphorescent emitter and the ultrathin red emitter.

  12. 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. -sa ?

  13. HIERARCHICAL STRUCTURE FORMATION AND MODES OF STAR FORMATION IN HICKSON COMPACT GROUP 31

    SciTech Connect (OSTI)

    Gallagher, S. C. [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada); Durrell, P. R. [Department of Physics and Astronomy, Youngstown State University, Youngstown, OH 44555 (United States); Elmegreen, D. M. [Department of Physics and Astronomy, Vassar College, Poughkeepsie, NY 12604 (United States); Chandar, R. [Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606-3390 (United States); English, J. [Department of Physics and Astronomy, University of Manitoba, Winnipeg, MN R3T 2N2 (Canada); Charlton, J. C.; Gronwall, C.; Young, J. [Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States); Tzanavaris, P.; Hornschemeier, A. E. [Laboratory for X-ray Astrophysics, NASA's Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Johnson, K. E. [Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325 (United States); Mendes de Oliveira, C. [Instituto de Astronomia, Geofisica, e Ciencias Atmosfericas da Universidade de Sao Paulo, Sao Paulo (Brazil); Whitmore, B.; Maybhate, Aparna [Space Telescope Science Institute, Baltimore, MD 21218-2463 (United States); Zabludoff, Ann [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)], E-mail: sgalla4@uwo.ca

    2010-02-15

    The handful of low-mass, late-type galaxies that comprise Hickson Compact Group 31 (HCG 31) is in the midst of complex, ongoing gravitational interactions, evocative of the process of hierarchical structure formation at higher redshifts. With sensitive, multicolor Hubble Space Telescope imaging, we characterize the large population of < 10 Myr old star clusters (SCs) that suffuse the system. From the colors and luminosities of the young SCs, we find that the galaxies in HCG 31 follow the same universal scaling relations as actively star-forming galaxies in the local universe despite the unusual compact group environment. Furthermore, the specific frequency of the globular cluster system is consistent with the low end of galaxies of comparable masses locally. This, combined with the large mass of neutral hydrogen and tight constraints on the amount of intragroup light, indicate that the group is undergoing its first epoch of interaction-induced star formation. In both the main galaxies and the tidal-dwarf candidate, F, stellar complexes, which are sensitive to the magnitude of disk turbulence, have both sizes and masses more characteristic of z = 1-2 galaxies. After subtracting the light from compact sources, we find no evidence for an underlying old stellar population in F-it appears to be a truly new structure. The low-velocity dispersion of the system components, available reservoir of H I, and current star formation rate of {approx}10 M {sub sun} yr{sup -1} indicate that HCG 31 is likely to both exhaust its cold gas supply and merge within {approx}1 Gyr. We conclude that the end product will be an isolated, X-ray-faint, low-mass elliptical.

  14. 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...

  15. multicolor | OpenEI Community

    Open Energy Info (EERE)

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

  16. OpenEI Community - multicolor

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly Smart Grid Data available for download onst,/0Thoughts after the

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 41EurASEAA 2006, Bougon papers Natural processes iNvolved iN the formatioN of

    E-Print Network [OSTI]

    Boyer, Edmond

    site formation processes. A sedimentological study indicated that the fossiliferous layer resulted from

  9. 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

  10. 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.)

  11. 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.

  12. 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.

  13. 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.**

  14. (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.

  15. 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

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. The modelling of feedback in star formation simulations

    E-Print Network [OSTI]

    Dale, James E

    2015-01-01

    I review the current state of numerical simulations of stellar feedback in the context of star formation at scales ranging from the formation of individual stars to models of galaxy formation including cosmic reionisation. I survey the wealth of algorithms developed recently to solve the radiative transfer problem and to simulate stellar winds, supernovae and protostellar jets. I discuss the results of these simulations with regard to star formation in molecular clouds, the interaction of different feedback mechanisms with each other and with magnetic fields, and in the wider context of galactic-- and cosmological--scale simulations.

  1. RAPID DUST FORMATION IN NOVAE: THE SPEED CLASSFORMATION TIMESCALE CORRELATION EXPLAINED

    SciTech Connect (OSTI)

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

    2013-11-10

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

  2. Masers and star formation

    E-Print Network [OSTI]

    Vincent L. Fish

    2007-04-02

    Recent observational and theoretical advances concerning astronomical masers in star forming regions are reviewed. Major masing species are considered individually and in combination. Key results are summarized with emphasis on present science and future prospects.

  3. Introduction Main Result

    E-Print Network [OSTI]

    Yan, Catherine Huafei

    Introduction Main Result Enumeration Crossings and Nestings of Two Edges in Set Partitions Yan Crossings and Nestings of Set Partitions #12;Introduction Main Result Enumeration Definition} Catherine Yan Crossings and Nestings of Set Partitions #12;Introduction Main Result Enumeration Definition

  4. 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.

  5. Cleanroom energy benchmarking results

    E-Print Network [OSTI]

    Tschudi, William; Xu, Tengfang

    2001-01-01

    emeu/consumption) Cleanroom benchmarking results, (http://Fok, and P. Rumsey. 2001. Cleanroom Energy Benchmarking inin the proceedings. Cleanroom Energy Benchmarking Results

  6. Definitions Main Result

    E-Print Network [OSTI]

    Heubach, Silvia

    Background Definitions Main Result Special Types of Patterns Summary Avoidance of partially ordered Avoidance of partially ordered patterns in compositions #12;Background Definitions Main Result Special Types of Patterns Summary Outline 1 Background 2 Definitions 3 Main Result Preliminaries Main Result 4 Special Types

  7. Uncovering Fundamental Ash-Formation Mechanisms and Potential Means to Control the Impact on DPF Performance and Engine Efficiency

    Broader source: Energy.gov [DOE]

    Results illustrate ash particle growth and formation pathways, and influence of lubricant chemistry and exhaust conditions on fundamental ash properties

  8. Sequestration of Dissolved CO2 in the Oriskany Formation

    SciTech Connect (OSTI)

    Dilmore, R.M.; Allen, D.E. (Salem State College, Salem, MA); McCarthy-Jones, J.R.; Hedges, S.W.; Soong, Yee

    2008-04-15

    Experiments were conducted to determine the solubility of CO2 in a natural brine solution of the Oriskany formation under elevated temperature and pressure conditions. These data were collected at temperatures of 22 and 75 C and pressures between 100 and 450 bar. Experimentally determined data were compared with CO2 solubility predictions using a model developed by Duan and Sun (Chem. Geol. 2003, 193, 257-271). Model results compare well with Oriskany brine CO2 solubility data collected experimentally, suggesting that the Duan and Sun model is a reliable tool for estimating solution CO2 capacity in high salinity aquifers in the temperature and pressure range evaluated. The capacity for the Oriskany formation to sequester dissolved CO2 was calculated using results of the solubility models, estimation of the density of CO2 saturated brine, and available geographic information system (GIS) information on the formation depth and thickness. Results indicate that the Oriskany formation can hold approximately 0.36 gigatonnes of dissolved CO2 if the full basin is considered. When only the region where supercritical CO2 can exist (temperatures greater than 31 C and pressures greater than 74 bar) is considered, the capacity of the Oriskany formation to sequester dissolved CO2 is 0.31 gigatonnes. The capacity estimate considering the potential to sequester free-phase supercritical CO2 if brine were displaced from formation pore space is 8.8 gigatonnes in the Oriskany formation.

  9. 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.

  10. 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 ...

  11. 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

  12. 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 ...

  13. Hazard analysis results report

    SciTech Connect (OSTI)

    Niemi, B.J., Westinghouse Hanford

    1996-09-30

    This document describes and defines the Hazard Analysis Results for the Tank Waste Remediation System Final Safety Analysis Report.

  14. Motivation Model Results Summary A generative model for feedback networks

    E-Print Network [OSTI]

    White, Douglas R.

    Motivation Model Results Summary A generative model for feedback networks D.R. White1 N. Kejzar2 C #12;Motivation Model Results Summary Outline 1 Motivation An example 2 Model 3 Results Network properties Simulations #12;Motivation Model Results Summary Cycle formation in growing network How to model

  15. 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.

  16. 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.

  17. 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 10100?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.

  18. 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.

  19. Search results | Department of Energy

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

    downloadsmonitoring-and-mentoring Download Great Energy Debate Students evaluate the advantages and disadvantages of the major energy sources in an innovative debate format....

  20. 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.

  1. Testing Disk Instability Models for Giant Planet Formation

    E-Print Network [OSTI]

    Alan P. Boss

    2007-04-09

    Disk instability is an attractive yet controversial means for the rapid formation of giant planets in our solar system and elsewhere. Recent concerns regarding the first adiabatic exponent of molecular hydrogen gas are addressed and shown not to lead to spurious clump formation in the author's disk instability models. A number of disk instability models have been calculated in order to further test the robustness of the mechanism, exploring the effects of changing the pressure equation of state, the vertical temperature profile, and other parameters affecting the temperature distribution. Possible reasons for differences in results obtained by other workers are discussed. Disk instability remains as a plausible formation mechanism for giant planets.

  2. Benzene formation in the inner regions of protostellar disks

    E-Print Network [OSTI]

    Paul M. Woods; Karen Willacy

    2006-12-08

    Benzene (c-C6H6) formation in the inner 3 AU of a protostellar disk can be efficient, resulting in high abundances of benzene in the midplane region. The formation mechanism is different to that found in interstellar clouds and in protoplanetary nebulae, and proceeds mainly through the reaction between allene (C3H4) and its ion. This has implications for PAH formation, in that some fraction of PAHs seen in the solar system could be native rather than inherited from the interstellar medium.

  3. The Onset of Planet Formation in Brown Dwarf Disks

    E-Print Network [OSTI]

    D. Apai; I. Pascucci; J. Bouwman; A. Natta; Th. Henning; C. P. Dullemond

    2005-11-14

    The onset of planet formation in protoplanetary disks is marked by the growth and crystallization of sub-micron-sized dust grains accompanied by dust settling toward the disk mid-plane. Here we present infrared spectra of disks around brown dwarfs and brown dwarf candidates. We show that all three processes occur in such cool disks in a way similar or identical to that in disks around low- and intermediate-mass stars. These results indicate that the onset of planet formation extends to disks around brown dwarfs, suggesting that planet formation is a robust process occurring in most young circumstellar disks.

  4. Star Formation in Mergers and Interacting Galaxies: Gathering the Fuel

    E-Print Network [OSTI]

    Curtis Struck

    2006-10-06

    Selected results from recent studies of star formation in galaxies at different stages of interaction are reviewed. Recent results from the Spitzer Space Telescope are highlighted. Ideas on how large-scale driving of star formation in interacting galaxies might mesh with our understanding of star formation in isolated galaxies and small scale mechanisms within galaxies are considered. In particular, there is evidence that on small scales star formation is determined by the same thermal and turbulent processes in cool compressed clouds as in isolated galaxies. If so, this affirms the notion that the primary role of large-scale dynamics is to gather and compress the gas fuel. In gas-rich interactions this is generally done with increasing efficiency through the merger process.

  5. Overview of ALICE results

    E-Print Network [OSTI]

    Antonio Ortiz; for the ALICE Collaboration

    2015-01-22

    The ALICE detector was designed to study the physics of matter under extreme conditions of high energy density. Different results were reported by the experiment using data from the successful run I of the LHC. The goal of the present work is to present an overview of recent ALICE results. This comprises selected results from several analyses of pp, p-pb and Pb-Pb data at the LHC energies.

  6. 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,

  7. 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 &...

  8. Recent results from TRISTAN

    SciTech Connect (OSTI)

    Enomoto, Ryoji [National Laboratory for High Energy Physics, Ibaraki (Japan)

    1997-01-01

    TRISTAN results on {gamma}{gamma} physics from 1994 to 1995 are reviewed in this report. We have systematically investigated jet production, the {gamma}-structure function, and charm pair production in {gamma}{gamma} processes. The results are discussed, and future prospects are presented.

  9. 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...

  10. Sensitivity and Scenario Results

    E-Print Network [OSTI]

    Yu, Winston

    Presents the results of various scenarios using models used to study water, climate, agriculture and the economy in Pakistan's Indus Basin, and discusses the policy and investment implications. The water allocations per ...

  11. NA57 main results

    E-Print Network [OSTI]

    G. E. Bruno; for the NA57 Collaboration

    2007-10-15

    The CERN NA57 experiment was designed to study the production of strange and multi-strange particles in heavy ion collisions at SPS energies; its physics programme is essentially completed. A review of the main results is presented.

  12. Electroweak results from CDF

    SciTech Connect (OSTI)

    D. S. Waters

    2004-06-02

    Inclusive W and Z production cross-sections have been measured by CDF and certain electroweak parameters extracted with high precision from these measurements. New results on diboson production at the Tevatron are also presented.

  13. Controlling formation fines at their sources to maintain well productivity

    SciTech Connect (OSTI)

    Nguyen, P.D.; Weaver, J.D.; Rickman, R.D.; Dusterhoft, R.G.; Parker, M.A.

    2007-05-15

    Migration of formation fines has been shown to cause production decline in many wells. Despite the availability of new downhole tools for use in well stimulation and completion, the ability to sustain desired production levels is often plagued with fines migration problems. The solution to this problem is appropriate treatment to mitigate fines migration at its source. This paper describes the use of an ultra-thin tackifying agent (UTTA) for stabilizing fines in high-rate producing or injection wells. This UTTA is applied as part of an initial prepad in fracturing or gravel-packing operations, as a remedial treatment, or as a post-treatment following acid fracturing or matrix acidizing treatments. The primary purpose of UTTA application is to immobilize formation fines so that they will not detach, migrate with flowing fluids, plug the pore channels, and reduce the flow path permeability. Results of laboratory testing indicate that the UTTA system is applicable to most types of formation fines, including coals, sandstones, and carbonates. Once injected into the formation matrix or proppant pack, the UTTA forms a thin film on formation surfaces, encapsulating the fines. Capillary action helps pull the tackifier into the contact points, fixing the particulate in place without plugging the pore throat. The UTTA does not require a shut-in time after its application. The thin film tackifier does not harden, but remains flexible, enhancing the ability of a formation to withstand stress cycling and allowing the formation to handle high shear stress during high flow rates.

  14. 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.

  15. 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.

  16. 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...

  17. 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

  18. Formation of a compact toroid for enhanced efficiency

    SciTech Connect (OSTI)

    Mozgovoy, A. G. [P.N. Lebedev Physical Institute, Moscow 119991 (Russian Federation)] [P.N. Lebedev Physical Institute, Moscow 119991 (Russian Federation); Romadanov, I. V.; Ryzhkov, S. V., E-mail: ryzhkov@power.bmstu.ru [Bauman Moscow State Technical University, Moscow 105005 (Russian Federation)

    2014-02-15

    We report here our results on the formation of a plasma configuration with the generic name of compact toroid (CT). A method of compact toroid formation to confine, heat and compress a plasma is investigated. Formation of a compact torus using an additional toroidal magnetic field helps to increase the plasma current to a maintainable level of the original magnetic field. We design the Compact Toroid Challenge (CTC) experiment in order to improve the magnetic flux trapping during field reversal in the formation of a compact toroid. The level of the magnetic field immersed in the plasma about 70% of the primary field is achieved. The CTC device and scheme of high level capturing of magnetic flux are presented.

  19. Environment and the cosmic evolution of star formation

    E-Print Network [OSTI]

    Ravi K. Sheth; Raul Jimenez; Ben Panter; Alan Heavens

    2006-04-27

    We present a mark correlation analysis of the galaxies in the Sloan Digital Sky Survey using weights provided by MOPED. The large size of the sample permits statistically significant statements about how galaxies with different metallicities and star formation histories are spatially correlated. Massive objects formed a larger fraction of their stars at higher redshifts and over shorter timescales than did less massive objects (sometimes called down-sizing). We find that those galaxies which dominated the cosmic star formation at z~3 are predominantly in clusters today, whereas galaxies which dominate the star formation at z~0 inhabit substantially lower mass objects in less dense regions today. Hence, our results indicate that star formation and chemical enrichment occured first in the denser regions of the Universe, and moved to less dense regions at later times.

  20. Rapid gas hydrate formation processes: Will they work?

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

    Brown, Thomas D.; Taylor, Charles E.; Bernardo, Mark P.

    2010-06-07

    Researchers at DOEs National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETLs 15-Liter Hydrate Cell. The results from this work demonstrate that the rapid and continuousmoreformation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve.less

  1. Rapid Gas Hydrate Formation Processes: Will They Work?

    SciTech Connect (OSTI)

    Brown, Thomas D.; Taylor, Charles E.; Bernardo, Mark P.

    2010-06-01

    Researchers at DOEs National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETLs 15-Liter Hydrate Cell. Results from this work demonstrate that the rapid and continuous formation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve.

  2. The Mechanism of First Raindrops Formation in Deep Convective Clouds

    SciTech Connect (OSTI)

    Khain, Alexander; Prabha, Thara; Benmoshe, Nir; Pandithurai, G.; Ovchinnikov, Mikhail

    2013-08-22

    The formation of first raindrops in deep convective clouds is investigated. A combination of observational data analysis and 2-D and 3-D numerical bin microphysical simulations of deep convective clouds suggests that the first raindrops form at the top of undiluted or slightly diluted cores. It is shown that droplet size distributions in these regions are wider and contain more large droplets than in diluted volumes. The results of the study indicate that the initial raindrop formation is determined by the basic microphysical processes within ascending adiabatic volumes. It allows one to predict the height of the formation of first raindrops considering the processes of nucleation, diffusion growth and collisions. The results obtained in the study explain observational results reported by Freud and Rosenfeld (2012) according to which the height of first raindrop formation depends linearly on the droplet number concentration at cloud base. The results also explain why a simple adiabatic parcel model can reproduce this dependence. The present study provides a physical basis for retrieval algorithms of cloud microphysical properties and aerosol properties using satellites proposed by Rosenfeld et al. ( 2012). The study indicates that the role of mixing and entrainment in the formation of the first raindrops is not of crucial importance. It is also shown that low variability of effective and mean volume radii along horizontal traverses, as regularly observed by in situ measurements, can be simulated by high-resolution cloud models, in which mixing is parameterized by a traditional 1.5 order turbulence closure scheme.

  3. 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.

  4. Recent results from MAC

    SciTech Connect (OSTI)

    MAC Collaboration

    1982-05-01

    Some preliminary results from the MAC detector at PEP are presented. These include measurements of the angular distribution of ..gamma gamma.., ..mu mu.. and tau tau final states, a determination of the tau lifetime, a measurement of R, and a presentation of the inclusive muon p/sub perpendicular/ distribution for hadronic events.

  5. Plans, Implementation, and Results

    Broader source: Energy.gov [DOE]

    The Bioenergy Technologies Office carries out technology research, development, and deployment through an ongoing process of planning and analysis, implementation, and review. This Web page includes links to documents that support and document the program management process, and the results and public benefits that derive from it.

  6. Supplementary Results Behavioral Performance

    E-Print Network [OSTI]

    Knutson, Brian

    of the performance measures. #12;Full Brain fMRI Analyses for Reward Anticipation See Tables 1 and 2 for the results of whole brain analyses. #12;Table 1. Patterns of Activation for Contrasts of BOLD Signal Immediately coordinates Area Side Talairach coordinates Area Side -24,-32,55 Postcentral gyrus Left 23,0,67 Middle frontal

  7. Key Research Results Achievement

    E-Print Network [OSTI]

    ) evaluated several common figures of merit used to compare the electrical and optical performance of TCsKey Research Results Achievement NREL research significantly contributed to inadequate existing not yet at performance levels of TCOs, demonstrate a much better combination of transmission

  8. Key Research Results Achievement

    E-Print Network [OSTI]

    % energy savings in new buildings and major renovations. Researchers at the National Renewable Energy%energysavingsovercode.NREL developedthesimulationtoolsandledthe committeethatproducedtheguides. Key Result TheAdvancedEnergy to use signifi- cantly less energy--reducing operating costs and greenhouse gas emissions. This new K-12

  9. Search results | Department of Energy

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

    formation can have a favorable outcome in producing plants that have higher levels of cellulose than the parent plant. The cellulose yield is most important in the production of...

  10. Cleanroom energy benchmarking results

    SciTech Connect (OSTI)

    Tschudi, William; Xu, Tengfang

    2001-09-01

    A utility market transformation project studied energy use and identified energy efficiency opportunities in cleanroom HVAC design and operation for fourteen cleanrooms. This paper presents the results of this work and relevant observations. Cleanroom owners and operators know that cleanrooms are energy intensive but have little information to compare their cleanroom's performance over time, or to others. Direct comparison of energy performance by traditional means, such as watts/ft{sup 2}, is not a good indicator with the wide range of industrial processes and cleanliness levels occurring in cleanrooms. In this project, metrics allow direct comparison of the efficiency of HVAC systems and components. Energy and flow measurements were taken to determine actual HVAC system energy efficiency. The results confirm a wide variation in operating efficiency and they identify other non-energy operating problems. Improvement opportunities were identified at each of the benchmarked facilities. Analysis of the best performing systems and components is summarized, as are areas for additional investigation.

  11. Tevatron Top Results

    E-Print Network [OSTI]

    Christophe Clement

    2006-05-28

    I present the latest results from the CDF and D0 collaborations on top quark production (single top and top quark pair production) at the Tevatron proton-antiproton collider at sqrt(s) =1.96 TeV, measurements of the top quark decay properties such as the branching ratio B(t -> Wb), the W helicity in t -> Wb decays, and measurements of fundamental parameters such as the top quark charge and mass.

  12. Double Chooz: Latest results

    E-Print Network [OSTI]

    J. I. Crespo-Anadn; for the Double Chooz collaboration

    2014-12-11

    The latest results from the Double Chooz experiment on the neutrino mixing angle $\\theta_{13}$ are presented. A detector located at an average distance of 1050 m from the two reactor cores of the Chooz nuclear power plant has accumulated a live time of 467.90 days, corresponding to an exposure of 66.5 GW-ton-year (reactor power $\\times$ detector mass $\\times$ live time). A revised analysis has boosted the signal efficiency and reduced the backgrounds and systematic uncertainties compared to previous publications, paving the way for the two detector phase. The measured $\\sin^2 2\\theta_{13} = 0.090^{+0.032}_{-0.029}$ is extracted from a fit to the energy spectrum. A deviation from the prediction above a visible energy of 4 MeV is found, being consistent with an unaccounted reactor flux effect, which does not affect the $\\theta_{13}$ result. A consistent value of $\\theta_{13}$ is measured in a rate-only fit to the number of observed candidates as a function of the reactor power, confirming the robustness of the result.

  13. Vesicle dynamics in elongation flow: Wrinkling instability and bud formation

    E-Print Network [OSTI]

    Vasiliy Kantsler; Enrico Segre; Victor Steinberg

    2007-04-30

    We present experimental results on the relaxation dynamics of vesicles subjected to a time-dependent elongation flow. We observed and characterized a new instability, which results in the formation of higher order modes of the vesicle shape (wrinkles), after a switch in the direction of the gradient of the velocity. This surprising generation of membrane wrinkles can be explained by the appearance of a negative surface tension during the vesicle deflation, due to compression in a sign-switching transient. Moreover, the formation of buds in the vesicle membrane has been observed in the vicinity of the dynamical transition point.

  14. Vesicle dynamics in elongation flow: Wrinkling instability and bud formation

    E-Print Network [OSTI]

    Kantsler, Vasiliy; Steinberg, Victor; 10.1103/PhysRevLett.99.178102

    2011-01-01

    We present experimental results on the relaxation dynamics of vesicles subjected to a time-dependent elongation flow. We observed and characterized a new instability, which results in the formation of higher order modes of the vesicle shape (wrinkles), after a switch in the direction of the gradient of the velocity. This surprising generation of membrane wrinkles can be explained by the appearance of a negative surface tension during the vesicle deflation, due to compression in a sign-switching transient. Moreover, the formation of buds in the vesicle membrane has been observed in the vicinity of the dynamical transition point.

  15. Recent BABAR Results

    SciTech Connect (OSTI)

    Eigen, Gerald

    2015-04-29

    We present herein the most recent BABAR results on direct CP asymmetry measurements in B ? Xs?, on partial branching fraction and CP asymmetry measurements in B ? Xsl+l-, on a search for B ? ? / ?l+l- decays, on a search for lepton number violation in B+ ? X-l+l'+ modes and a study of B0 ??? and B0 ? ?? decays.

  16. 2012 User Survey Results

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 2010 james-r.giusti@srs.govTuesday, FebruaryResults 2012

  17. Recent Results from HAPPEX

    SciTech Connect (OSTI)

    Robert Michaels

    2006-09-18

    New measurements of the parity-violating asymmetry in elastic scattering of 3GeV electrons off hydrogen and helium-4 targets at theta{sub lab} = 6 degrees are reported. The helium-4 result is A = (+6.40 {+-} 0.23 (stat) {+-} 0.12 (syst)) * 10{sup -6}. The hydrogen result is A = (-1.58 {+-} 0.12 (stat) {+-} 0.04 (syst)) * 10{sup -6}. The asymmetry for hydrogen is a function of a linear combination of G{sub E}{sup s} and G{sub M}{sup s}, the strange quark contributions to the electric and magnetic form factors of the nucleon respectively, and that for helium-4 is a function solely of G{sub E}{sup s}. The combination of the two measurements separates G{sub E}{sup s} and G{sub M}{sup s} and provide new limits on the role of strange quarks in the nucleon charge and magnetization distributions. We extract G{sub E}{sup s} = 0.002 {+-} 0.014 {+-} 0.007 at Q{sup 2} = 0.077 GeV{sup 2} and G{sub E}{sup s} + 0.09 G{sub M}{sup s} = 0.007 {+-} 0.011 {+-} 0.006 at Q{sup 2} = 0.109 GeV{sup 2}.

  18. Organic Separation Test Results

    SciTech Connect (OSTI)

    Russell, Renee L.; Rinehart, Donald E.; Peterson, Reid A.

    2014-09-22

    Separable organics have been defined as those organic compounds of very limited solubility in the bulk waste and that can form a separate liquid phase or layer (Smalley and Nguyen 2013), and result from three main solvent extraction processes: U Plant Uranium Recovery Process, B Plant Waste Fractionation Process, and Plutonium Uranium Extraction (PUREX) Process. The primary organic solvents associated with tank solids are TBP, D2EHPA, and NPH. There is concern that, while this organic material is bound to the sludge particles as it is stored in the tanks, waste feed delivery activities, specifically transfer pump and mixer pump operations, could cause the organics to form a separated layer in the tank farms feed tank. Therefore, Washington River Protection Solutions (WRPS) is experimentally evaluating the potential of organic solvents separating from the tank solids (sludge) during waste feed delivery activities, specifically the waste mixing and transfer processes. Given the Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste acceptance criteria per the Waste Feed Acceptance Criteria document (24590-WTP-RPT-MGT-11-014) that there is to be no visible layer of separable organics in the waste feed, this would result in the batch being unacceptable to transfer to WTP. This study is of particular importance to WRPS because of these WTP requirements.

  19. 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.

  20. 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.

  1. 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...

  2. Nucleosynthesis results from INTEGRAL

    E-Print Network [OSTI]

    G. Weidenspointner

    2006-01-15

    Since its launch in October 2002, ESA's INTEGRAL observatory has enabled significant advances to be made in the study of Galactic nucleosynthesis. In particular, the imaging Ge spectrometer SPI combines for the first time the diagnostic powers of high resolution gamma-ray line spectroscopy and moderate spatial resolution. This review summarizes the major nucleosynthesis results obtained with INTEGRAL so far. Positron annihilation in our Galaxy is being studied in unprecented detail. SPI observations yield the first sky maps in both the 511 keV annihilation line and the positronium continuum emission, and the most accurate spectrum at 511 keV to date, thereby imposing new constraints on the source(s) of Galactic positrons which still remain(s) unidentified. For the first time, the imprint of Galactic rotation on the centroid and shape of the 1809 keV gamma-ray line due to the decay of 26Al has been seen, confirming the Galactic origin of this emission. SPI also provided the most accurate determination of the gamma-ray line flux due to the decay of 60Fe. The combined results for 26Al and 60Fe have important implications for nucleosynthesis in massive stars, in particular Wolf-Rayet stars. Both IBIS and SPI are searching the Galactic plane for young supernova remnants emitting the gamma-ray lines associated with radioactive 44Ti. None have been found so far, which raises important questions concerning the production of 44Ti in supernovae, the Galactic supernova rate, and the Galaxy's chemical evolution.

  3. Dolomite formation in the dynamic deep biosphere: results from the Peru Margin

    E-Print Network [OSTI]

    Gilli, Adrian

    /680, 1229/681 and 1230/685) and analysed for petrography, mineralogy, d13 C, d18 O and 87 Sr/86 Sr values with the d13 C values of the dissolved inorganic carbon in the associated modern porewater. Both petrography

  4. In vivo formation and persistence of modified nucleosides resulting from alkylating agents

    SciTech Connect (OSTI)

    Singer, B.

    1985-10-01

    Alkylating agents are ubiquitous in the human environment and are continuously synthesized in vivo. Although many classes exist, interest has been focused on the N-nitroso compounds, since many are mutagens for bacteria, phage, and cells, and carcinogens for mammals. In contrast to aromatic amines and polyaromatic hydrocarbons which can react at carbons, simple alkylating agents react with nitrogens and oxygens: 13 sites are possible, including the internucleotide phosphodiester. However, only the N-nitroso compounds react extensively with oxygens. In vivo, most possible derivatives have been found after administration of methyl and ethyl nitroso compounds. It has been hypothesized that the level and persistence of specific derivatives in a target cell correlates with oncogenesis. However, no single derivative can be solely responsible for this complex process, since correlations cannot be made for even a single carcinogen acting on various species or cell types. Evaluation of human exposure requires early and sensitive methods to detect the initial damage and the extent of repair of each of the many promutagenic adducts.

  5. Numerical Modeling of CO2 Sequestration in Geologic Formations - Recent Results and Open Challenges

    E-Print Network [OSTI]

    Pruess, Karsten

    2006-01-01

    crustal conditions of a geothermal gradient of 30 ?C/km andwater in a normal geothermal gradient of 30 ?C/km with ais held in a normal geothermal gradient of 30 ?C/km and is

  6. New Result Formats on OpenEI | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation,MeregNIFESpinningLtdElectric&Water Util JumpOpenEINew

  7. 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.

  8. 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.

  9. 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 ...

  10. 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...

  11. La cl informatique Formation Word XP

    E-Print Network [OSTI]

    Vellend, Mark

    La cl informatique Formation Word XP Aide-mmoire Hiver 2004 #12;#12;Formation Word XP Hiver 2004 1. PRSENTATION DE L'INTERFACE DE MICROSOFT WORD XP................ 1 1.1. L'interface gnrale

  12. 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...

  13. Magnetic Fields in Population III Star Formation

    SciTech Connect (OSTI)

    Turk, Matthew J.; Oishi, Jeffrey S.; Abel, Tom; Bryan, Greg

    2012-02-22

    We study the buildup of magnetic fields during the formation of Population III star-forming regions, by conducting cosmological simulations from realistic initial conditions and varying the Jeans resolution. To investigate this in detail, we start simulations from identical initial conditions, mandating 16, 32 and 64 zones per Jeans length, and studied the variation in their magnetic field amplification. We find that, while compression results in some amplification, turbulent velocity fluctuations driven by the collapse can further amplify an initially weak seed field via dynamo action, provided there is sufficient numerical resolution to capture vortical motions (we find this requirement to be 64 zones per Jeans length, slightly larger than, but consistent with previous work run with more idealized collapse scenarios). We explore saturation of amplification of the magnetic field, which could potentially become dynamically important in subsequent, fully-resolved calculations. We have also identified a relatively surprising phenomena that is purely hydrodynamic: the higher-resolved simulations possess substantially different characteristics, including higher infall-velocity, increased temperatures inside 1000 AU, and decreased molecular hydrogen content in the innermost region. Furthermore, we find that disk formation is suppressed in higher-resolution calculations, at least at the times that we can follow the calculation. We discuss the effect this may have on the buildup of disks over the accretion history of the first clump to form as well as the potential for gravitational instabilities to develop and induce fragmentation.

  14. REVISITING JOVIAN-RESONANCE INDUCED CHONDRULE FORMATION

    SciTech Connect (OSTI)

    Nagasawa, M. [Interactive Research Center of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan); Tanaka, K. K.; Tanaka, H. [Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo 060-0819 (Japan); Nakamoto, T. [Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan); Miura, H. [Graduate School of Natural Sciences, Nagoya City University, 1 Yamanohata, Mizuho-cho, Mizuho-ku, Nagoya 467-8501 (Japan); Yamamoto, T., E-mail: nagasawa.m.ad@m.titech.ac.jp [Center for Planetary Science, Kobe University, 7-1-48 Minamimachi, Minatojima, Chuo-ku, Kobe 650-0047 (Japan)

    2014-10-10

    It is proposed that planetesimals perturbed by Jovian mean-motion resonances are the source of shock waves that form chondrules. It is considered that this shock-induced chondrule formation requires the velocity of the planetesimal relative to the gas disk to be on the order of ? 7 km s{sup 1} at 1AU. In previous studies on planetesimal excitation, the effects of Jovian mean-motion resonance together with the gas drag were investigated, but the velocities obtained were at most 8 km s{sup 1} in the asteroid belt, which is insufficient to account for the ubiquitous existence of chondrules. In this paper, we reexamine the effect of Jovian resonances and take into account the secular resonance in the asteroid belt caused by the gravity of the gas disk. We find that the velocities relative to the gas disk of planetesimals a few hundred kilometers in size exceed 12 km s{sup 1}, and that this is achieved around the 3:1 mean-motion resonance. The heating region is restricted to a relatively narrowband between 1.5AU and 3.5AU. Our results suggest that chondrules were produced effectively in the asteroid region after Jovian formation. We also find that many planetesimals are scattered far beyond Neptune. Our findings can explain the presence of crystalline silicate in comets if the scattered planetesimals include silicate dust processed by shock heating.

  15. 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.

  16. The Formation and Destruction of Molecular Clouds and Galactic Star Formation

    E-Print Network [OSTI]

    Inutsuka, Shu-ichiro; Iwasaki, Kazunari; Hosokawa, Takashi

    2015-01-01

    We describe an overall picture of galactic-scale star formation. Recent high-resolution magneto-hydrodynamical simulations of two-fluid dynamics with cooling/heating and thermal conduction have shown that the formation of molecular clouds requires multiple episodes of supersonic compression. This finding enables us to create a scenario in which molecular clouds form in interacting shells or bubbles on a galactic scale. First we estimate the ensemble-averaged growth rate of molecular clouds over a timescale larger than a million years. Next we perform radiation hydrodynamics simulations to evaluate the destruction rate of magnetized molecular clouds by the stellar FUV radiation. We also investigate the resultant star formation efficiency within a cloud which amounts to a low value (a few percent) if we adopt the power-law exponent -2.5 for the mass distribution of stars in the cloud. We finally describe the time evolution of the mass function of molecular clouds over a long timescale (>1Myr) and discuss the st...

  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. Thermally Triggered Calcium Phosphate Formation from Calcium-Loaded Liposomes

    E-Print Network [OSTI]

    of utilizing lipid vesicles for the synthesis of inorganic solids of controlled shape and/or size is well the rapid in situ formation of polymer hydrogels, inorganic solids, and other materials for medical. Mixing of a calcium-loaded lipid vesicle suspension with aqueous inorganic phosphate resulted in a stable

  19. 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.

  20. 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.

  1. 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.

  2. Mental Representations Formed From Educational Website Formats

    SciTech Connect (OSTI)

    Elizabeth T. Cady; Kimberly R. Raddatz; Tuan Q. Tran; Bernardo de la Garza; Peter D. Elgin

    2006-10-01

    The increasing popularity of web-based distance education places high demand on distance educators to format web pages to facilitate learning. However, limited guidelines exist regarding appropriate writing styles for web-based distance education. This study investigated the effect of four different writing styles on readers mental representation of hypertext. Participants studied hypertext written in one of four web-writing styles (e.g., concise, scannable, objective, and combined) and were then administered a cued association task intended to measure their mental representations of the hypertext. It is hypothesized that the scannable and combined styles will bias readers to scan rather than elaborately read, which may result in less dense mental representations (as identified through Pathfinder analysis) relative to the objective and concise writing styles. Further, the use of more descriptors in the objective writing style will lead to better integration of ideas and more dense mental representations than the concise writing style.

  3. Fibrillar dimer formation of islet amyloid polypeptides

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

    Chiu, Chi -cheng; de Pablo, Juan J.

    2015-05-08

    Amyloid deposits of human islet amyloid polypeptide (hIAPP), a 37-residue hormone co-produced with insulin, have been implicated in the development of type 2 diabetes. Residues 20 29 of hIAPP have been proposed to constitute the amyloidogenic core for the aggregation process, yet the segment is mostly unstructured in the mature fibril, according to solid-state NMR data. Here we use molecular simulations combined with bias-exchange metadynamics to characterize the conformational free energies of hIAPP fibrillar dimer and its derivative, pramlintide. We show that residues 20 29 are involved in an intermediate that exhibits transient ?-sheets, consistent with recent experimentalmoreand simulation results. By comparing the aggregation of hIAPP and pramlintide, we illustrate the effects of proline residues on inhibition of the dimerization of IAPP. The mechanistic insights presented here could be useful for development of therapeutic inhibitors of hIAPP amyloid formation.less

  4. 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.

  5. Understanding galaxy formation with ISO deep surveys

    E-Print Network [OSTI]

    David Elbaz

    2005-03-17

    We present the results obtained through the various ISO extragalactic deep surveys. While IRAS revealed the existence of galaxies forming stars at a rate of a few tens (LIRGs) or even hundreds (ULIRGs) solar masses in the local universe, ISO not only discovered that these galaxies were already in place at redshift one, but also that they are not the extreme objects that we once believed them to be. Instead they appear to play a dominant role in shaping present-day galaxies as reflected by their role in the cosmic history of star formation and in producing the cosmic infrared background detected by the COBE satellite in the far infrared to sub-millimeter range.

  6. 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.

  7. 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.

  8. 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.

  9. Mechanism of membrane tube formation induced by adhesive nanocomponents

    E-Print Network [OSTI]

    ari?, Andela

    2015-01-01

    We report numerical simulations of membrane tubulation driven by large colloidal particles. Using Monte Carlo simulations we study how the process depends on particle size, concentration and binding strength, and present accurate free energy calculations to sort out how tube formation compares with the competing budding process. We find that tube formation is a result of the collective behavior of the particles adhering on the surface, and it occurs for binding strengths that are smaller than those required for budding. We also find that long linear aggregates of particles forming on the membrane surface act as nucleation seeds for tubulation by lowering the free energy barrier associated to the process.

  10. Kinetics of bond formation in crosslinked gelatin gels

    E-Print Network [OSTI]

    T. Abete; E. Del Gado; D. Hellio Serughetti; L. de Arcangelis; M. Djabourov; A. Coniglio

    2006-11-07

    In chemical crosslinking of gelatin solutions, two different time scales affect the kinetics of the gel formation in the experiments. We complement the experimental study with Monte Carlo numerical simulations of a lattice model. This approach shows that the two characteristic time scales are related to the formation of single bonds crosslinker-chain and of bridges between chains. In particular their ratio turns out to control the kinetics of the gel formation. We discuss the effect of the concentration of chains. Finally our results suggest that, by varying the probability of forming bridges as an independent parameter, one can finely tune the kinetics of the gelation via the ratio of the two characteristic times.

  11. Bump formation in a binary attractor neural network

    SciTech Connect (OSTI)

    Koroutchev, Kostadin; Korutcheva, Elka

    2006-02-15

    The conditions for the formation of local bumps in the activity of binary attractor neural networks with spatially dependent connectivity are investigated. We show that these formations are observed when asymmetry between the activity during the retrieval and learning is imposed. An analytical approximation for the order parameters is derived. The corresponding phase diagram shows a relatively large and stable region where this effect is observed, although critical storage and information capacities drastically decrease inside that region. We demonstrate that the stability of the network, when starting from the bump formation, is larger than the stability when starting even from the whole pattern. Finally, we show a very good agreement between the analytical results and the simulations performed for different topologies of the network.

  12. The Formation of a Bubble from a Submerged Orifice

    E-Print Network [OSTI]

    Simmons, Jonathan A; Shikhmurzaev, Yulii D

    2015-01-01

    The formation of a single bubble from an orifice in a solid surface, submerged in an in- compressible, viscous Newtonian liquid, is simulated. The finite element method is used to capture the multiscale physics associated with the problem and to track the evolution of the free surface explicitly. The results are compared to a recent experimental analysis and then used to obtain the global characteristics of the process, the formation time and volume of the bubble, for a range of orifice radii; Ohnesorge numbers, which combine the material parameters of the liquid; and volumetric gas flow rates. These benchmark calculations, for the parameter space of interest, are then utilised to validate a selection of scaling laws found in the literature for two regimes of bubble formation, the regimes of low and high gas flow rates.

  13. On The History and Future of Cosmic Planet Formation

    E-Print Network [OSTI]

    Behroozi, Peter

    2015-01-01

    We combine constraints on galaxy formation histories with planet formation models, yielding the Earth-like and giant planet formation histories of the Milky Way and the Universe as a whole. In the Hubble Volume (10^13 Mpc^3), we expect there to be ~10^20 Earth-like and ~10^20 giant planets; our own galaxy is expected to host ~10^9 and ~10^10 Earth-like and giant planets, respectively. Proposed metallicity thresholds for planet formation do not significantly affect these numbers. However, the metallicity dependence for giant planets results in later typical formation times and larger host galaxies than for Earth-like planets. The Solar System formed at the median age for existing giant planets in the Milky Way, and consistent with past estimates, formed after 80% of Earth-like planets. However, if existing gas within virialised dark matter haloes continues to collapse and form stars and planets, the Universe will form over 10 times more planets than currently exist. We show that this would imply at least a 92%...

  14. Multicolor Photometry of the Uranus Irregular Satellites Sycorax and Caliban

    E-Print Network [OSTI]

    Michele Maris; Giovanni Carraro; Gabriele Cremonese; Marco Fulle

    2001-01-27

    We report on accurate BVRI photometry for the two Uranus irregular satellites Sycorax and Caliban. We derive colours, showing that Sycorax is bluer than Caliban. Our data allows us to detect a significant variability in the Caliban's light-curve, which suggests an estimated period of about 3 hours. Despite it is the brighter of the two bodies, Sycorax does not display a strong statistically significant variability. However our data seem to suggest a period of about 4 hours

  15. Improved Distances to Type Ia Supernovae withMulticolor Light...

    Office of Scientific and Technical Information (OSTI)

    on Rsub V. less Authors: Jha, Saurabh ; KIPAC, Menlo Park ; Riess, Adam G. ; Baltimore, Space Telescope Sci. ; Kirshner, Robert P. ; Harvard-Smithsonian Ctr. Astrophys....

  16. Multicolor Fluorescent Biosensor for Multiplexed Detection of DNA Rong Hu,,,

    E-Print Network [OSTI]

    Tan, Weihong

    Engineering, College of Biology, Collaborative Innovation Center of Molecular Engineering for Theranostics 50-fold lower than that of traditional unamplified homogeneous fluorescent assay methods differences in drug metabo- lism.4,5 On the basis of their simplicity, low-cost, high sensitivity, rapid

  17. Multicolored Asian Ladybeetle Update Great Lakes Fruit Worker's Meeting

    E-Print Network [OSTI]

    Isaacs, Rufus

    7 spotted lady beetle #12;Asian ladybeetles are an efficient biocontrol agent, feeding on a variety 3. Nuisance, sometimes a health concern to homeowners Efficient biocontrol agent, feeding Importations into the U.S. (for biocontrol of aphids and scale) 1978-1982 Ladybeetle life cycle adult egg larva

  18. Multicolor Polarimetry of Selected Be Stars: 1995-98

    E-Print Network [OSTI]

    David McDavid

    1998-12-25

    A new polarimeter called AnyPol has been used at Limber Observatory for four years to annually monitor the broadband linear polarization of a sample of bright northern Be stars. This is the fourth report on a program started in 1985 at McDonald Observatory and the first one to come entirely from the new installation. Although no variability was detected at the 3-sigma level during the current reporting period, analysis of the full 13-year data set is beginning to reveal hints of long-term variability that may provide clues for understanding the Be phenomenon.

  19. Multicolor Maps from Compound Queries | OpenEI Community

    Open Energy Info (EERE)

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

  20. Win-stay lose-shift strategy in formation changes in football

    E-Print Network [OSTI]

    Tamura, Kohei

    2015-01-01

    Managerial decision making is likely to be a dominant determinant of performance of teams in team sports. Here we use Japanese and German football data to investigate correlates between temporal patterns of formation changes across matches and match results. We found that individual teams and managers both showed win-stay lose-shift behavior, a type of reinforcement learning. In other words, they tended to stick to the current formation after a win and switch to a different formation after a loss. In addition, formation changes did not affect the results of succeeding matches in most cases. The results indicate that a swift implementation of a new formation in the win-stay lose-shift manner may not be a successful managerial rule of thumb.

  1. 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.

  2. 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.

  3. 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.

  4. Efficient quantum-classical method for computing thermal rate constant of recombination: Application to ozone formation

    E-Print Network [OSTI]

    Reid, Scott A.

    : Application to ozone formation Mikhail V. Ivanov and Dmitri Babikov Citation: J. Chem. Phys. 136, 184304 (2012 for computing thermal rate constant of recombination: Application to ozone formation Mikhail V. Ivanov of ozone. Comparison of the predicted rate vs. experimental result is presented. 2012 American Institute

  5. Final Report: Mechanisms of sputter ripple formation: coupling among energetic ions, surface kinetics, stress and composition

    SciTech Connect (OSTI)

    Chason, Eric; Shenoy, Vivek

    2013-01-22

    Self-organized pattern formation enables the creation of nanoscale surface structures over large areas based on fundamental physical processes rather than an applied template. Low energy ion bombardment is one such method that induces the spontaneous formation of a wide variety of interesting morphological features (e.g., sputter ripples and/or quantum dots). This program focused on the processes controlling sputter ripple formation and the kinetics controlling the evolution of surfaces and nanostructures in high flux environments. This was done by using systematic, quantitative experiments to measure ripple formation under a variety of processing conditions coupled with modeling to interpret the results.

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    results Search results Enter terms Search Showing 11 - 20 of 16 results. Download Energy Conservation Contract (4 activities) Students learn about saving energy and encourage...

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

    Energy Usage Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Monitoring and Mentoring These activities explore energy use and conservation...

  12. Search results | Department of Energy

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

    Energy Usage High School (9-12) Teachers Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Conservation Contract (4 activities)...

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    Energy Usage Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Management Students will review energy basics and what they have...

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

    Energy Usage Search results Search results Enter terms Search Showing 1 - 10 of 23 results. Download Reducing Energy Loss Students will learn about the Law of Conservation of...

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    Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Article Energy Literacy in Action: Nevada Teachers Helping Students Learn About Energy Energy...

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

    Energy Usage Search results Search results Enter terms Search Showing 1 - 9 of 9 results. Download Learning and Conserving (10 activities) These activities explore energy use...

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

    results Search results Enter terms Search Showing 1 - 10 of 26 results. Download Energy Literacy Videos New video series, Energy Literacy highlights the 7 Essential...

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

    Search results Search results Enter terms Search Showing 1 - 8 of 8 results. Download Energy Management Students will review energy basics and what they have learned in energy...

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

    results Search results Enter terms Search Showing 1 - 10 of 28 results. Download Energy Literacy Videos New video series, Energy Literacy highlights the 7 Essential...

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    Energy Sources Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video Energy 101: Fuel Cell Technology This video illustrates the fundamentals of fuel...

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

    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video Energy 101: Fuel Cell Technology This video illustrates the fundamentals of fuel cell technology...

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    Geothermal Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Energy Production Students will compare and contrast renewable and nonrenewable...

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    Geothermal Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Power to the Plug: An Introduction to Energy, Electricity, Consumption, and...

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

    results Search results Enter terms Search Showing 1 - 10 of 10 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most commonly used fuel...

  5. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 1 - 8 of 8 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most commonly used fuel...

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

    results Search results Enter terms Search Showing 1 - 9 of 9 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most commonly used fuel...

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

    results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most commonly used fuel...

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

    Search results Search results Enter terms Search Showing 31 - 40 of 34 results. Download Primary Science of Energy Teacher and Student Guides (42 Activities) Information about...

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

    Energy Sources Science & Innovation Search results Search results Enter terms Search Showing 31 - 40 of 36 results. Download Making a Solar Oven Students make solar ovens....

  10. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Hybrid Vehicles: Cut Pollution & Save Money Alternatives to internal combustion engines have been...

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

    results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Hybrid Vehicles: Cut Pollution & Save Money Alternatives to internal combustion engines have been...

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

    results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

  13. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

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

    Science Education Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy in Today's Global Society Energy is an abstract concept that is...

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

    & Technology Science Education Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy in Today's Global Society Energy is an abstract...

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    Education Download Search results Search results Enter terms Search Showing 21 - 30 of 42 results. Download Energy in Today's Global Society Energy is an abstract concept...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 31 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  18. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 10 of 12 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 10 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  20. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 10 of 42 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  1. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 9 of 9 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 32 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 25 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 65 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 43 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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

    Search results Search results Enter terms Search Showing 1 - 10 of 24 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  7. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 10 of 11 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  8. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 10 of 53 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

  9. Search results | Department of Energy

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    Climate Change Energy Literacy Principle 6 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Awareness Quiz Students will identify...

  10. Search results | Department of Energy

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    Climate Change Elementary (K-5) Teachers Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Protect Your Climate Curriculum and Training...

  11. Search results | Department of Energy

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

    Climate Change Middle School (6-8) Teachers Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Protect Your Climate Curriculum and Training...

  12. Search results | Department of Energy

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    results Search results Enter terms Search Showing 1 - 4 of 4 results. Article Solar Energy Technology Basics Solar energy technologies produce electricity from the energy of the...

  13. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

  14. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

  15. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

  16. Search results | Department of Energy

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

    Vehicles Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Understanding Earth's Energy Sources In Part 1, students will know how fossil fuels...

  17. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Understanding Earth's Energy Sources In Part 1, students will know how...

  18. Search results | Department of Energy

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    Graduate Students Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Article Energy Literacy in Action: Nevada Teachers Helping Students Learn About...

  19. Search results | Department of Energy

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    PressMedia Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Page How Distributed Wind Works Wind generator http:energy.goveerewind...

  20. Search results | Department of Energy

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    K-8 Grade Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Article Energy Literacy in Action: Nevada Teachers Helping Students Learn About Energy...

  1. Search results | Department of Energy

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    High School Students Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Article Energy Literacy in Action: Nevada Teachers Helping Students Learn About...

  2. Search results | Department of Energy

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    Undergraduate Students Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Article Energy Literacy in Action: Nevada Teachers Helping Students Learn...

  3. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Download Plants in Your Gas Tank: From Photosynthesis to Ethanol With ethanol becoming more prevalent...

  4. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Plants in Your Gas Tank: From Photosynthesis to Ethanol With ethanol becoming more prevalent...

  5. Search results | Department of Energy

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    Biofuels Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic...

  6. Search results | Department of Energy

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

    Biofuels Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video Energy 101: Feedstocks for Biofuels and More See how organic materials like corn...

  7. Search results | Department of Energy

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

    Biofuels Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

  8. Search results | Department of Energy

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

    Biofuels Energy Literacy Principle 4 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic...

  9. Search results | Department of Energy

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

    Biofuels Energy Efficiency Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms...

  10. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Energy Management Students will review energy basics and what they have learned...

  11. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Download Learning and Conserving (10 activities) These activities explore energy use and...

  12. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Download Learning and Conserving (10 activities) These activities explore energy use and...

  13. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Making Energy Personal Students will work with an interactive website in oder...

  14. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Getting Energized Students will be able to describe the forms and sources of...

  15. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Monitoring and Mentoring These activities explore energy use and conservation...

  16. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 10 of 15 results. Download Reducing Energy Loss Students will learn about the Law of Conservation of...

  17. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Download Making Energy Personal Students will work with an interactive website in oder...

  18. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Making Energy Personal Students will work with an interactive website in oder...

  19. Search results | Department of Energy

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    Consumption Download Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Monitoring and Mentoring These activities explore energy use and...

  20. Search results | Department of Energy

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    Consumption Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Transmission Students will learn about everyday energy usage by...

  1. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 8 of 8 results. Download Making Energy Personal Students will work with an interactive website in oder...

  2. Search results | Department of Energy

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    Consumption Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Getting Energized Students will be able to describe the forms and sources of...

  3. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Awareness Quiz Students will identify their level of knowledge about...

  4. Search results | Department of Energy

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

    Consumption Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Energy Management Students will review energy basics and what they have...

  5. Search results | Department of Energy

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    Consumption Energy Efficiency Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Monitoring and Mentoring These activities explore energy...

  6. Search results | Department of Energy

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

    Hydrogen & Fuel Cells Energy Literacy Principle 4 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Electrolysis of Water Students observe...

  7. Search results | Department of Energy

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

    Hydrogen & Fuel Cells Energy Literacy Principle 2 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Electrolysis of Water Students observe...

  8. Search results | Department of Energy

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    results Search results Enter terms Search Showing 1 - 8 of 8 results. Download Green Fuel This activity allows students the opportunity to explore different methods for...

  9. Search results | Department of Energy

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    Biofuels Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Video Energy 101: Feedstocks for Biofuels and More See how organic materials like corn...

  10. Search results | Department of Energy

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

    7 Biofuels Bioenergy Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made...

  11. Search results | Department of Energy

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    4 Biofuels Video Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

  12. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Page Hydropower Basics How does water power energy work? Water turbine http:energy.goveerewater...

  13. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Article Hydropower Technology Basics Hydropower, or hydroelectric power, is the most common and least...

  14. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 11 - 20 of 11 results. Article Hydropower Technology Basics Hydropower, or hydroelectric power, is the most common and least...

  15. Search results | Department of Energy

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

    Search results Search results Enter terms Search Showing 11 - 20 of 11 results. Page Hydropower Basics How does water power energy work? Water turbine http:energy.goveerewater...

  16. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 11 - 20 of 15 results. Download Energy Conservation Contract (4 activities) Students learn about saving energy and encourage...

  17. Search results | Department of Energy

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    results Search results Enter terms Search Showing 61 - 70 of 65 results. Download Thermodynamics Teacher and Student Guides (6 Activities) This is a hands-on laboratory unit...

  18. Search results | Department of Energy

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

    results Search results Enter terms Search Showing 61 - 70 of 67 results. Download Thermodynamics Teacher and Student Guides (6 Activities) This is a hands-on laboratory unit...

  19. Search results | Department of Energy

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    Alternative Fuel Vehicles Energy Efficiency Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Alternative Fuels Used in Transportation (5...

  20. Search results | Department of Energy

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    Alternative Fuel Vehicles Energy Efficiency Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Alternative Fuels Used in Transportation (5...

  1. Search results | Department of Energy

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    Alternative Fuel Vehicles Energy Literacy Principle 2 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Alternative Fuels Used in...

  2. Search results | Department of Energy

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    Energy Efficiency Homes Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Monitoring and Mentoring These activities explore energy use and...

  3. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Production Students will compare and contrast renewable and...

  4. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 11 - 20 of 45 results. Download Energy Transmission Students will learn about everyday energy usage by...

  5. Search results | Department of Energy

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    Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Production Students will compare and contrast renewable and nonrenewable resources to...

  6. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 14 results. Download Protect Your Climate Curriculum and Training Request projects here....

  7. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 15 results. Download Reducing Energy Loss Students will learn about the Law of Conservation...

  8. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 18 results. Download Reducing Energy Loss Students will learn about the Law of Conservation...

  9. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Monitoring and Mentoring These activities explore energy use and...

  10. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 40 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the...

  11. Search results | Department of Energy

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    Download Energy Efficiency Search results Search results Enter terms Search Showing 31 - 40 of 40 results. Download Life With Energy Students will describe ways in which...

  12. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

  13. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Energy Production Students will compare and contrast renewable and...

  14. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 21 - 30 of 45 results. Download Saving Energy at Home and School (11 lessons) Students explore energy...

  15. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 20 results. Download Making Energy Personal Students will work with an interactive website...

  16. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 27 results. Download Protect Your Climate Curriculum and Training Request projects here....

  17. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 13 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

  18. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 10 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the...

  19. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Video Energy 101: Heavy Duty Vehicle Efficiency Although Class 8 Trucks only make...

  20. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 31 - 40 of 45 results. Download Transportation Fuels: The Future is Today (6 Activities) This teacher...

  1. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Monitoring and Mentoring These activities explore energy use and...

  2. Search results | Department of Energy

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    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 12 results. Download Making Energy Personal Students will work with an interactive website...

  3. Search results | Department of Energy

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

    Energy Efficiency Search results Search results Enter terms Search Showing 1 - 10 of 15 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

  4. Search results | Department of Energy

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    Hydrogen & Fuel Cells Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Electrolysis of Water Students observe the electrolysis of water using...

  5. Search results | Department of Energy

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

    Climate Change Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Awareness Quiz Students will identify their level of knowledge about...

  6. Search results | Department of Energy

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

    Climate Change Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Protect Your Climate Curriculum and Training Request projects here. Upon...

  7. Search results | Department of Energy

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

    Climate Change Download Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Protect Your Climate Curriculum and Training Request projects...

  8. Search results | Department of Energy

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

    Climate Change Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Protect Your Climate Curriculum and Training Request projects here. Upon...

  9. Search results | Department of Energy

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    Waste Management Elementary (K-5) Teachers Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Expos Students work in groups to create...

  10. Search results | Department of Energy

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    Fuel Economy Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Transportation Fuels: The Future is Today (6 Activities) This teacher guide...

  11. Search results | Department of Energy

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    Energy Economy Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Download Energy Literacy Videos New video series, Energy Literacy highlights the 7...

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    Energy Economy Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Transportation Fuels: The Future is Today (6 Activities) This teacher guide...

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    Energy Economy Search results Search results Enter terms Search Showing 1 - 10 of 12 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the...

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    Fuel Economy Download Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Transportation Fuels: The Future is Today (6 Activities) This...

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    Energy Economy Search results Search results Enter terms Search Showing 11 - 20 of 16 results. Download Energy Management Students will review energy basics and what they have...

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    Energy Economy Search results Search results Enter terms Search Showing 1 - 10 of 16 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the...

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    Wind Energy Literacy Principle 6 Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download An Exploration of Wind Energy & Wind Turbines This...

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    Climate Change Energy Literacy Principle 6 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Using Plants to Save Energy Students will...

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    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Page Vehicle Technology and Alternative Fuel Basics Learn about exciting technologies and ongoing...

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    Energy Literacy Principle 1 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Understanding Earth's Energy Sources In Part 1, students will...

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    results Search results Enter terms Search Showing 1 - 1 of 1 result. Page Vehicle Technology and Alternative Fuel Basics Learn about exciting technologies and ongoing research...

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    results Search results Enter terms Search Showing 1 - 2 of 2 results. Page Vehicle Technology and Alternative Fuel Basics Learn about exciting technologies and ongoing research...

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    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Hybrid Vehicles: Cut Pollution & Save Money Alternatives to internal combustion engines...

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    Search results Search results Enter terms Search Showing 1 - 10 of 13 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most commonly used...

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    Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Energy from The Wind (9 activities) Hands-on activities that provide a comprehensive...

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    results Search results Enter terms Search Showing 1 - 6 of 6 results. Download Exploring Wind Energy (12 activities) Hands-on activities that provide a comprehensive understanding...

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    Wind Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Download Power to the Plug: An Introduction to Energy, Electricity, Consumption, and...

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    Wind Search results Search results Enter terms Search Showing 1 - 8 of 8 results. Download Energy Production Students will compare and contrast renewable and nonrenewable...

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    results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Exploring Wind Energy (12 activities) Hands-on activities that provide a comprehensive understanding...

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    results Search results Enter terms Search Showing 1 - 5 of 5 results. Download Exploring Wind Energy (12 activities) Hands-on activities that provide a comprehensive understanding...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Transportation Fuels: The Future is Today (6 Activities) This teacher guide...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Page Advantages and Challenges of Wind Energy Wind energy offers many advantages, which...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Power to the Plug: An Introduction to Energy, Electricity, Consumption, and...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Electrolysis of Water Students observe the electrolysis of water using either...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Article Wind Energy Technology Basics Wind energy technologies use the energy in wind for...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Page How Distributed Wind Works Wind generator http:energy.goveerewind...

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    Renewables Elementary (K-5) Teachers Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Power to the Plug: An Introduction to Energy,...

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    Renewables Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Page How Distributed Wind Works Wind generator http:energy.goveerewind...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Video Energy 101: Wind Turbines- 2014 Update The video highlights the basic principles at...

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    Renewables Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Energy Production Students will compare and contrast renewable and nonrenewable...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 11 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Page How Distributed Wind Works Wind generator http:energy.goveerewind...

  1. Search results | Department of Energy

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 13 results. Download Plants in Your Gas Tank: From Photosynthesis to Ethanol With ethanol becoming...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy Production Students will compare and contrast renewable and nonrenewable...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 34 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video Re-Building Greensburg Civic leaders and entrepreneurs helped rebuild Greensburg,...

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    Renewables Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Get Current: Switch on Clean Energy Coloring Book...

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    Renewables Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Page Advantages and Challenges of Wind Energy Wind energy offers many advantages, which...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 73 results. Video Energy 101: Geothermal Energy See how we can generate clean, renewable energy...

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    Renewables Search results Search results Enter terms Search Showing 1 - 6 of 6 results. Page Frequently Asked Questions about Wind Energy This page lists frequently asked...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Wind Turbine Blade Design Blade engineering and design is one of the most...

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    Renewables Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most...

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    Renewables Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Plants in Your Gas Tank: From Photosynthesis to...

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    Renewables Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most...

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    Renewables Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Energy Production Students will compare and contrast renewable and nonrenewable...

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    Renewables Search results Search results Enter terms Search Showing 1 - 9 of 9 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Energy from The Wind (9 activities) Hands-on activities that provide a...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 12 results. Download Energy Production Students will compare and contrast renewable and...

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    Renewables Search results Search results Enter terms Search Showing 1 - 8 of 8 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

  1. Search results | Department of Energy

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    Renewables Consumers Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Page How Distributed Wind Works Wind generator http:energy.goveerewind...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 14 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most...

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    Renewables Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Video Re-Building Greensburg Civic leaders and entrepreneurs helped rebuild Greensburg,...

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    Renewables Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Video Energy 101: Geothermal Energy See how we can generate clean, renewable energy from...

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    Renewables Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Page Advantages and Challenges of Wind Energy Wind energy offers many advantages, which...

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    Renewables Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Video Energy 101: Hydroelectric Power Learn how hydropower captures the kinetic energy of...

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    Renewables Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline is the most...

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    Renewables Search results Search results Enter terms Search Showing 1 - 5 of 5 results. Page Advantages and Challenges of Wind Energy Wind energy offers many advantages, which...

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    Renewables Search results Search results Enter terms Search Showing 31 - 40 of 73 results. Download Green Fuel This activity allows students the opportunity to explore different...

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    Renewables Energy Literacy Principle 4 Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic...

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    Renewables Search results Search results Enter terms Search Showing 1 - 10 of 25 results. Video Re-Building Greensburg Civic leaders and entrepreneurs helped rebuild Greensburg,...

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    Renewables Search results Search results Enter terms Search Showing 1 - 7 of 7 results. Download Exploring Hydroelectricity (9 activities) Integrated and inquiry-based...

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    Renewables Energy Literacy Principle 7 Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Plants in Your Gas Tank: From Photosynthesis to...

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    Video Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural waste...

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    Energy Sources Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

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    Search results Search results Enter terms Search Showing 21 - 30 of 21 results. Download Energy Awareness Quiz Students will identify their level of knowledge about energy issues...

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    Science & Innovation Search results Search results Enter terms Search Showing 1 - 10 of 55 results. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

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    Search results Search results Enter terms Search Showing 1 - 10 of 16 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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    3 Search results Search results Enter terms Search Showing 11 - 20 of 24 results. Download What's Cooking Students in small groups conduct an investigation into the similarities...

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    Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural waste have...

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    Vehicles Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from agricultural...

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    Search results Search results Enter terms Search Showing 1 - 10 of 13 results. Download Energy Literacy Video Analysis Guide A guide for discussion related to the information and...

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    Science & Technology Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Video A New Biofuels Technology Blooms in Iowa Cellulosic biofuels made from...

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    Alternative Fuel Vehicles Energy Efficiency Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Alternative Fuels Used in Transportation (5...

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    Alternative Fuel Vehicles Energy Efficiency Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Alternative Fuels Used in Transportation (5...

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    Alternative Fuel Vehicles Search results Search results Enter terms Search Showing 1 - 2 of 2 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline...

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    Alternative Fuel Vehicles Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline...

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    Alternative Fuel Vehicles Search results Search results Enter terms Search Showing 1 - 4 of 4 results. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline...

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    Alternative Fuel Vehicles Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Alternative Fuels Used in Transportation (5 Activities) Gasoline...

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    Alternative Fuel Vehicles Download Search results Search results Enter terms Search Showing 1 - 3 of 3 results. Download Alternative Fuels Used in Transportation (5...

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    Environmental Cleanup Waste Management Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Expos Students work in groups to create...

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    Waste Management Download Search results Search results Enter terms Search Showing 1 - 1 of 1 result. Download Energy Expos Students work in groups to create hands-on...