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Träfflista för sökning "WFRF:(Menichetti G.) "

Sökning: WFRF:(Menichetti G.)

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  • 2019
  • Tidskriftsartikel (refereegranskat)
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  • Apponi, A., et al. (författare)
  • Heisenberg's uncertainty principle in the PTOLEMY project : A theory update
  • 2022
  • Ingår i: Physical Review D. - : American Physical Society. - 2470-0010 .- 2470-0029. ; 106:5
  • Tidskriftsartikel (refereegranskat)abstract
    • We discuss the consequences of the quantum uncertainty on the spectrum of the electron emitted by the beta-processes of a tritium atom bound to a graphene sheet. We analyze quantitatively the issue recently raised by Cheipesh, Cheianov, and Boyarsky [Phys. Rev. D 104, 116004 (2021)], and discuss the relevant timescales and the degrees of freedom that can contribute to the intrinsic spread in the electron energy. We perform careful calculations of the potential between tritium and graphene with different coverages and geometries. With this at hand, we propose possible avenues to mitigate the effect of the quantum uncertainty.
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5.
  • Ekblad, Alf, et al. (författare)
  • Determination of Soil Respiration rates and d13C in situ using a spectroscopic Picarro G1101-i instrument
  • 2010
  • Ingår i: Geophysical Research Abstracts. - 1607-7962. ; 12
  • Konferensbidrag (refereegranskat)abstract
    • Variation in the d13C-signature of soil respiration can be used as a tracer in ecological research. Up until now, isotopic determinations have mainly been performed by gas sampling and expensive and complex laboratory IRMS analyses. Recently, user friendly, portable and less expensive spectroscopic instruments have become available on the market. However, if these instruments give reliable data in dynamic systems under highly variable temperatures and air humidity conditions is unknown. In this talk we will present results from the first summer of tests of the use of a Picarro G1101-i cavity ringdown spectroscopy instrument (size 43 x 25 x 59 cm; 26.3 kg) to determine the d13C of soil respiration in various systems.
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  • Resultat 1-5 av 5

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