Výsledky vyhledávání

Reformulation of a stochastic action principle for irregular dynamics

Autor: A. Le Méhauté, S. Bangoup, F. Tsobnang, A. Jeatsa, Q. A. Wang, F. Dzangue

Publikováno v: Chaos, Solitons & Fractals. 40:2550-2556

A stochastic action principle for random dynamics is revisited. Numerical diffusion experiments are carried out to show that the diffusion path probability depends exponentially on the Lagrangian action A = ∫ a b L d t . This result is then used to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a844263fc691fa91ded76f982212d75d
https://doi.org/10.1016/j.chaos.2007.10.047

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Elastic and thermodynamic properties of OsSi, OsSi2 and Os2Si3

Autor: F. Tsobnang, B. Minisini, Jens Roetting

Publikováno v: Computational Materials Science. 43:812-817

All components of the elasticity tensors for OsSi (P213), OsSi2 (Cmca) and Os2Si3 (Pbcn and P-4c2) were computed by means of the stress–strain method in the framework of the density functional theory. The total energies and stress were calculated u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::887d3a1c4b51c04636e754d87f141b51
https://doi.org/10.1016/j.commatsci.2008.01.058

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DFT evaluation of thermomechanical properties of scheelite type MLiF4 (M=La, Ce, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu)

Autor: Qiuping A. Wang, Patrick Bonnaud, B. Minisini, F. Tsobnang

Publikováno v: Computational Materials Science. 42:156-160

Rare earth fluoroscheelites lattice parameters have been investigated using the Vienna Ab initio Simulation Package within the generalized gradient approximation. Elastic constants were evaluated by stress–strain method as implemented in MedeA inte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9a79a8ace1793285045bbbd6ed90b63
https://doi.org/10.1016/j.commatsci.2007.07.001

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A Nonextensive Approach to Bose-Einstein Condensation of Trapped Interacting Boson Gas

Autor: A. El Kaabouchi, A. Lawani, B. Minisini, F. Tsobnang, A. Le Méhauté, Dmitrii Tayurskii, Laurent Nivanen, J. Le Meur, Q. A. Wang, M. Pezeril

Publikováno v: SCOPUS00222291-2008-150-34-SID38749125907
Journal of Low Temperature Physics
Journal of Low Temperature Physics, Springer Verlag (Germany), 2008, 150, pp.605-611. ⟨10.1007/s10909-007-9596-2⟩

In the Bose-Einstein condensation of interacting atoms or molecules such as 87Rb, 23Na and 7Li, the theoretical understanding of the transition temperature is not always obvious due to the interactions or zero point energy which cannot be exactly tak

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f778cb6e3048a6b94a4f72568808562c
https://doi.org/10.1007/s10909-007-9596-2

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A density functional study of the pressure induced phase transition in LiYF4

Autor: F. Tsobnang, N Van Garderen, M Lontsi Fomena, L El Hadj, B. Minisini

Publikováno v: Journal of Physics: Condensed Matter. 18:2429-2441

An investigation of the pressure induced phase transition from the scheelite phase (I41/a,Z = 4) to the fergusonite-like phase (I 2/a,Z = 4) and to the LaTaO4 phase (P 21/c,Z = 4) of LiYF4 is presented. Employing density functional theory (DFT) withi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f17bf33056af800651de8ae15c4c905
https://doi.org/10.1088/0953-8984/18/8/009

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Molecular dynamics study of specific interactions in grafted polypropylene organomodified clay nanocomposite

Autor: F. Tsobnang, B. Minisini

Publikováno v: Composites Part A: Applied Science and Manufacturing. 36:539-544

A molecular dynamics study was performed to analyze the interaction energy between an organomodified clay surface and functionalized polypropylene. A supercell containing montmorillonite with a cation exchange capacity of 140 meq/100 g organomodified

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cc7fa1e315d95ab5f30cbcd43618b1b
https://doi.org/10.1016/j.compositesa.2004.10.005

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Molecular mechanics studies of specific interactions in organomodified clay nanocomposite

Autor: B. Minisini, F. Tsobnang

Publikováno v: Composites Part A: Applied Science and Manufacturing. 36:531-537

Molecular mechanics calculations were performed to characterize organomodified clay. Supercells containing montmorillonite with a cation exchange capacity of 70 and 140 meq/100 g organomodified with three mono-tailed and one di-tailed surfactants wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c8d7a5fc9ece45a1c9feca3ae4a7f66
https://doi.org/10.1016/j.compositesa.2004.10.016

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Ab initio comparative study of montmorillonite structural models

Autor: B. Minisini, F. Tsobnang

Publikováno v: Applied Surface Science. 242:21-28

Montmorillonite is one of the most commonly used 2:1 phyllosilicates. A characteristic feature of the smectites is a high degree of structural disorder leading to a high dispersity of the cation exchange capacity (CEC). The electrostatic interactions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::114fed2ae7539663a6cf64e5bd365f86
https://doi.org/10.1016/j.apsusc.2004.07.057

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Computational study of spin transitions in BaLiF3containing paramagnetic impurities

Autor: I Lado-Touriño, F. Tsobnang, N Ayad, J C Fayet

Publikováno v: Journal of Physics: Condensed Matter. 12:7243-7254

The aim of this work is the computational study of the electronic and magnetic properties of [FeO4]5- clusters diluted in a cubic host crystal: BaLiF3. Experimental results show that these systems display a bistable magnetic behaviour (intermediate s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb7a0ef74e02ef05e5abd9fdccc65aed
https://doi.org/10.1088/0953-8984/12/32/308

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