O
Ousmanou Motapon
Researcher at University of Maroua
Publications - 90
Citations - 1028
Ousmanou Motapon is an academic researcher from University of Maroua. The author has contributed to research in topics: Dissociative recombination & Quantum defect. The author has an hindex of 17, co-authored 84 publications receiving 860 citations. Previous affiliations of Ousmanou Motapon include University of Douala & University of Le Havre.
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Collisional-radiative model in air for earth re-entry problems
TL;DR: In this article, a nonlinear time-dependent two-temperature collisional-radiative model for air plasma has been developed for pressures between 1kPa and atmospheric pressure to be applied to the flow conditions of space vehicle re-entry into the Earth's atmosphere.
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Solvent effects on the antioxidant activity of 3,4-dihydroxyphenylpyruvic acid : DFT and TD-DFT studies
Jean Jules Fifen,Jean Jules Fifen,Mama Nsangou,Mama Nsangou,Zoubeida Dhaouadi,Ousmanou Motapon,Nejm-Eddine Jaidane +6 more
TL;DR: In this paper, the antioxidant activity of 3,4-dihydroxyphenylpyruvic acid (3-4-DHPPA) was investigated using B3LYP/6-31+G*, 6-311++G** and Integral Equation Formalism Polarizable Continuum Model (PCM) methods.
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Solvation Energies of the Proton in Methanol.
Jean Jules Fifen,Jean Jules Fifen,Mama Nsangou,Mama Nsangou,Zoubeida Dhaouadi,Ousmanou Motapon,Nejm-Eddine Jaidane +6 more
TL;DR: The thermochemistry of the solvation of the proton in methanol within the cluster-continuum model is investigated and it comes out that the functional M062X is better than B3LYP, on the evaluation of gas phase clustering energies of protonated meethanol clusters.
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Structures of protonated methanol clusters and temperature effects.
TL;DR: The relative populations of various isomers of protonated methanol clusters, in both phases for temperatures ranging from 0 to 400 K, are accessed; in the gas phase, linear structures are entropically more favorable at high temperatures, while more compact ones are energetically moreavorable at lower temperatures.
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Reactive collisions between electrons and NO + ions: rate coefficient computations and relevance for the air plasma kinetics
Ousmanou Motapon,M Fifirig,A. Florescu,F O Waffeu Tamo,F O Waffeu Tamo,O Crumeyrolle,G Varin-Bréant,Arnaud Bultel,Pierre Vervisch,Jonathan Tennyson,Ioan F. Schneider +10 more
TL;DR: In this article, the rate coefficients for dissociative recombination (DR), elastic collisions, inelastic collisions (ICs) and superelastic collisions of NO+ ions on initial vibrational levels, with electrons of energy between 10−5 and 10 eV have been performed, with a method based on multichannel quantum defect theory.