Results 11 to 20 of about 19,326,268 (252)
Hydrogen aircraft concepts and ground support
, 2005 As worldwide petroleum supplies diminish and prices escalate, the aviation industry will be forced to consider relying on energy resources other than kerosene for its aviation fuel needs.
Sefain, Michael J.
core +7 more sources
Two Flavors of Hydrogen Atoms: A Possible Explanation of Dark Matter
Atoms, 2020 In one of our previous papers, it was shown that for the ground state of hydrogenic atoms/ions, it is possible to match the interior (inside the nucleus) solution of the Dirac equation with the singular exterior solution of the Dirac equation, so that ...
Eugene Oks
doaj +1 more source
Probing dark matter axions using the hyperfine structure splitting of hydrogen atoms
Physics Letters B, 2023 QCD axions can be a substantial part of dark matter if their mass ma∼10−5 eV. Since the axions were created by the misalignment mechanism, their local energy spectrum density is large. Consequently, the axion-induced atomic transition rate is enhanced if
Qiaoli Yang, Shiqin Dong
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Electron impact ionization of metastable 2P-state hydrogen atoms in the coplanar geometry
Results in Physics, 2015 Triple differential cross sections (TDCS) for the ionization of metastable 2P-state hydrogen atoms by electrons are calculated for various kinematic conditions in the asymmetric coplanar geometry.
S. Dhar, N. Nahar
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Open Physics, 2016 The time-dependent density functional theory (TDDFT) method was performed to investigate the excited-state intramolecular double proton transfer (ESIDPT) reaction of calix[4]arene (C4A) and the role of the intramolecular hydrogen bonds in the ESIDPT ...
Wang Se, Wang Zhuang, Hao Ce
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Interaction of Be4+ and Ground State Hydrogen Atom—Classical Treatment of the Collision
Atoms, 2020 The interaction between Be4+ and hydrogen atom is studied using the three-body classical trajectory Monte Carlo method (CTMC) and the quasiclassical trajectory Monte Carlo method of Kirschbaum and Wilets (QTMC-KW).
I. Ziaeian, K. Tőkési
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Effect of hydrogen bonding and complexation with metal ions on the fluorescence of luotonin A [PDF]
, 2013 Fluorescence characteristics of a biologically active natural alkaloid, luotonin A (LuA), were studied by steady-state and time-resolved spectroscopic methods.
Biczók, László, Miskolczy, Zsombor
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Constraining Born–Infeld-like nonlinear electrodynamics using hydrogen’s ionization energy
European Physical Journal C: Particles and Fields, 2018 In this work, the hydrogen’s ionization energy was used to constrain the free parameter b of three Born–Infeld-like electrodynamics namely Born–Infeld itself, Logarithmic electrodynamics and Exponential electrodynamics.
P. Niau Akmansoy, L. G. Medeiros
doaj +1 more source
Nuclear conversion theory: molecular hydrogen in non-magnetic insulators [PDF]
Royal Society Open Science, 2016 The hydrogen conversion patterns on non-magnetic solids sensitively depend upon the degree of singlet/triplet mixing in the intermediates of the catalytic reaction. Three main ‘symmetry-breaking’ interactions are brought together.
Ernest Ilisca, Filippo Ghiglieno
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In-beam measurement of the hydrogen hyperfine splitting and prospects for antihydrogen spectroscopy
Nature Communications, 2017 Comparing the ground-state hyperfine structure of antihydrogen to that of hydrogen will provide insights into CPT symmetry in nature. Here the authors report the most precise in-beam measurement of this quantity for hydrogen to demonstrate the viability ...
M. Diermaier +8 more
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