Browsing FAS Scholarly Articles by Keyword "carbon"
Now showing items 1-10 of 10
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Carbon–Fluorine Reductive Elimination from a High–Valent Palladium Fluoride
(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
(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
(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
(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
(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 ... -
The Impact of Radiocarbon Dating on Old World Archaeology: Past Achievements and Future Expectations
(University of Arizona, 2000) -
Kinetic Role of Carbon in Solid-State Synthesis of Zirconium Diboride using Nanolaminates: Nanocalorimetry Experiments and First-Principles Calculations
(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
(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
(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
(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 ...