The Carbon/Hydrogen Ratio
The carbon-to-oxygen ratio: implications for the spectra of hydrogen-dominated exoplanet atmospheres (article)
... typically derived from solar element abundances. We refer to this as the “non-consistent” approach. Comparing Fig. 8 with Fig. 7 it is clear that there are much larger differences between the spectra for the calcula- ...
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Effect of growth temperature and feedstock:catalyst ratio on the production of carbon nanotubes and hydrogen from the pyrolysis of waste plastics
... as carbon nanotubes, amorphous carbons are known to deactivate the catalyst by encapsulating catalyst particles [72], preventing the production of CNTs and ...into carbon nanotubes, shown in Figure 7(b), ...
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Continuous-flow isotope ratio mass spectrometry method for carbon and hydrogen isotope measurements on atmospheric methane
... mixing ratio Although a CF-IRMS system is primarily designed for high precision isotope measurements, the mixing ratio can also be determined with reasonable precision from the peak ar- ...the ...
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Hydrogen Permeation Estimated by HMT in Carbon Steel Exposed to Gaseous Hydrogen
... electrochemical hydrogen permeation method, that the detection efficiency of conven- tional HMT was approximately as low as 1% and that a high ratio of the evolved hydrogen atoms did not react with ...
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Negative-ion production on carbon materials in hydrogen plasma: influence of the carbon hybridization state and the hydrogen content on H− yield
... 21 carbon (ta-C) surfaces present higher negative-ion yield when hydrogen terminated 83 ...of hydrogen sub-surface content. The increase of the hydrogen content between RT and 400°C is ...
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Carbon and Hydrogen Accumulation on Exhaust Duct in LHD
... consider carbon balance and hydrogen isotope balance in the fuel cycle system and tritium safety man- agement of a fusion reactor, the evaluation of carbon and hydrogen isotope accumulation ...
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Vertically-aligned carbon nanotube membranes for hydrogen separation
... 3. Results and discussion 3.1 Characterizations of vertically aligned CNT arrays Fig. 1 shows the cross section of as-grown multi-walled CNT arrays derived from different ferrocene concentrations. The CNT arrays show ...
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Carbon nanotubes and hydrogen production from the reforming of toluene
... high-value carbon nanotubes (CNTs) during hydrogen production from catalytic reforming of toluene has been ...less carbon emission and higher product values can be expected from the ...increased ...
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Carbon and Hydrogen Isotopes as Tracers of Methane Dynamic in Wetlands
... Although most sources and sinks of CH 4 have been identified, their relative contributions to atmospheric CH 4 levels are still highly uncertain. The quantification of individual contributions to global emissions has ...
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Air fuel ratio study for mixture of biogas and hydrogen on mild combustion
... Lower AFR will result in unburned hydrocarbons (UHC) that harm the environment. This paper discusses the simulation of AFR for the moderate or intense low oxygen dilution combustion using bluff-body burner. A low calorie ...
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The air fuel ratio study for the mixture of biogas and hydrogen on mild combustion
... Smoothing High Transition Slow Span Angle Center Fine This burner was fuelled by the mixture of methane with hydrogen and carbon dioxide. The fuel mole fraction for this work to produce LCV is given in ...
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Bipolar carbon and hydrogen isotope constraints on the Holocene methane budget
... Whiticar and Schaefer, 2007; Levine et al., 2011b), which leaves atmospheric CH 4 strongly enriched in heavy isotopes relative to the isotopic emission signatures. Changes of the relative contributions in sources lead to ...
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Suppression of Hydrogen Assisted Fatigue Crack Growth in Carbon Steels
... the ratio of the fatigue crack growth rates (da/dN) H /(da/dN) ...the hydrogen-charged and uncharged specimens, ...life ratio of Ti- S05C was lower than that of V-S05C and Nb-S05C; that is, the ...
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Activation of Carbon-Hydrogen Bonds Mediated by Ru(II) Complexes
... The regioselectivity of furan and thiophene C-H activation by 1 is not conclusive for a non-oxidative addition pathway since identical regioselectivities have been reported for systems that initiate well-defined ...
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Confident methods for the evaluation of the hydrogen content in nanoporous carbon microfibers
... the hydrogen content derived from the density measurements using Equation 2 is ...the ratio D/G and the hydrogen content, we have made a linear ...Raman ratio for zero hydrogen content ...
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Algorithm design of the ratio control of chlorine and hydrogen in hydrogen chloride synthesis
... The ratio control of chlorine and hydrogen inputting into the furnace has been greatly concerned on many aspects, consequently, many kinds of control schemes ...and hydrogen flow ...the ...
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Carbon Hydrogen Oxygen Nitrogen
... 5. Under laboratory conditions, muscle cells were broken up and separated into fractions of mitochondria and cytoplasm in an attempt to learn more about cellular respiration. Each fraction was incubated with glucose or ...
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: Oxygen ( ), Methane ( %), Carbon Monoxide ( %), Hydrogen
... Listed on IECSC (Inventory of Existing Chemical Substances Produced or Imported in China) Listed on the Korean ECL (Existing Chemicals List). Listed on NZIoC (New Zealand Inventory of C[r] ...
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Hydrogen Fatigue-resisting Carbon Steels
... Abstract Hydrogen fatigue-resistant carbon steels that show dramatically reduced hydrogen-induced fatigue crack growth acceleration were successfully produced, as results of combining the addition of ...
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Electrical activity of carbon-hydrogen centers in Si
... the signal increase being stronger for (C-H) I . A small frac- tion of the E 3 ⬙ level is also observed in the C-rich samples in addition to (C-H) I . The observed transformations are well understood in the case of the ...
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