Now showing items 1-10 of 10

    • Carbon–Fluorine Reductive Elimination from a High–Valent Palladium Fluoride 

      Furuya, Takeru; Ritter, Tobias (American Chemical Society, 2008)
      We have observed two high-valent arylpalladiumfluoride complexes that afford carbon−fluorine bond formation upon thermolysis.
    • Forest ecosystem changes from annual methane source to sink depending on late summer water balance 

      Shoemaker, Julie K.; Keenan, Trevor; Hollinger, David Y.; Richardson, Andrew (Wiley-Blackwell, 2014)
      Forests dominate the global carbon cycle, but their role in methane (CH4) biogeochemistry remains uncertain. We analyzed whole-ecosystem CH4 fluxes from 2 years, obtained over a lowland evergreen forest in Maine, USA. Gross ...
    • Forward neutron production at the Fermilab Main Injector 

      Nigmanov, T. S.; Rajaram, D.; Longo, M. J.; Akgun, U.; Aydin, G.; Baker, W.; Barnes, P. D.; Bergfeld, T.; Bujak, A.; Carey, D.; Dukes, E. C.; Duru, F.; Feldman, Gary J.; Godley, A.; Gülmez, E.; Günaydin, Y. O.; Graf, N.; Gustafson, H. R.; Gutay, L.; Hartouni, E.; Hanlet, P.; Heffner, M.; Johnstone, C.; Kaplan, D. M.; Kamaev, O.; Klay, J.; Kostin, M.; Lange, D.; Lebedev, A.; Lu, L. C.; Materniak, C.; Messier, M. D.; Meyer, H.; Miller, D. E.; Mishra, S. R.; Nelson, K. S.; Norman, A.; Onel, Y.; Paley, J. M.; Park, H. K.; Penzo, A.; Peterson, R. J.; Raja, R.; Rosenfeld, C.; Rubin, H. A.; Seun, S.; Solomey, N.; Soltz, R.; Swallow, E.; Torun, Y.; Wilson, K.; Wright, D.; Wu, K. (American Physical Society (APS), 2011)
      We have measured cross sections for forward neutron production from a variety of targets using proton beams from the Fermilab Main Injector. Measurements were performed for proton beam momenta of 58, 84, and 120  GeV/c. ...
    • Geobiology of the Late Paleoproterozoic Duck Creek Formation, Western Australia 

      Wilson, Jonathan P.; Fischer, Woodward W.; Johnston, David T; Knoll, Andrew Herbert; Grotzinger, John P.; Walter, Malcolm R.; McNaughton, Neal J.; Simon, Mel; Abelson, John; Schrag, Daniel P.; Summons, Roger; Allwood, Abigail; Andres, Miriam; Gammon, Crystal; Garvin, Jessica; Rashby, Sky; Schweizer, Maia; Watters, Wesley A. (Elsevier, 2010)
      The ca. 1.8 Ga Duck Creek Formation, Western Australia, preserves 1000 m of carbonates and minor iron formation that accumulated along a late Paleoproterozoic ocean margin. Two upward-deepening stratigraphic packages are ...
    • Graphene synthesis by ion implantation 

      Garaj, Slaven; Hubbard, William; Golovchenko, Jene Andrew (AIP Publishing, 2010)
      We demonstrate an ion implantation method for large-scale synthesis of high quality graphene films with controllable thickness. Thermally annealing polycrystalline nickel substrates that have been ion implanted with carbon ...
    • Kinetic Role of Carbon in Solid-State Synthesis of Zirconium Diboride using Nanolaminates: Nanocalorimetry Experiments and First-Principles Calculations 

      Lee, Dongwoo; Sim, Gi-dong; Zhao, Kejie; Vlassak, Joost J. (American Chemical Society (ACS), 2015)
      Reactive nanolaminates afford a promising route for the low-temperature synthesis of zirconium diboride, an ultrahigh-temperature ceramic with metallic properties. Although the addition of carbon is known to facilitate ...
    • A Multi-Site Analysis of Random Error in Tower-Based Measurements of Carbon and Energy Fluxes 

      Davis, Kenneth J.; Suyker, Andrew E.; Munger, J. William; Wofsy, Steven; Katul, Gabriel G.; Ricciuto, Daniel M.; Stoy, Paul C.; Flanagan, Lawrence B.; Richardson, Andrew D.; Hollinger, David Y.; Burba, George C.; Verma, Shashi B. (Elsevier, 2006)
      Measured surface-atmosphere fluxes of energy (sensible heat, <i>H</i>, and latent heat, LE) and CO2 (<i>F</i>CO2) represent the "true" flux plus or minus potential random and systematic measurement errors. Here, we use data ...
    • Resolving systematic errors in estimates of net ecosystem exchange of CO2 and ecosystem respiration in a tropical forest biome 

      Hammond-Pyle, Elizabeth; Munger, J. William; Saleska, Scott R.; Daube, Bruce C.; Restrepo-Coupe, Natalia; Wofsy, Steven; de Camargo, Plinio B.; Hutyra, Lucy R. (Elsevier, 2008)
      The controls on uptake and release of CO<sub>2</sub> by tropical rainforests, and the responses to a changing climate, are major uncertainties in global climate change models. Eddy-covariance measurements potentially provide ...
    • Time-Dependent Density Functional Theory of Open Quantum Systems in the Linear-Response Regime 

      Tempel, David Gabriel; Watson, Mark A.; Olivares-Amaya, Roberto; Aspuru-Guzik, Alán (American Institute of Physics, 2011)
      Time-dependent density functional theory (TDDFT) has recently been extended to describe many-body open quantum systems evolving under nonunitary dynamics according to a quantum master equation. In the master equation ...