Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Subject: search.filters.subject.Stochastic systems

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  • Article
    Citation - WoS: 12
    Citation - Scopus: 13
    A General Expression for the Stagnant Thermal Conductivity of Stochastic and Periodic Structures
    (The American Society of Mechanical Engineers(ASME), 2018) Bai, X.; Çelik, Hasan; Mobedi, Moghtada; Nakayama, Akira
    A general expression has been obtained to estimate thermal conductivities of both stochastic and periodic structures with high-solid thermal conductivity. An air layer partially occupied by slanted circular rods of high-thermal conductivity was considered to derive the general expression. The thermal conductivity based on this general expression was compared against that obtained from detailed three-dimensional numerical calculations. A good agreement between two sets of results substantiates the validity of the general expression for evaluating the stagnant thermal conductivity of the periodic structures. Subsequently, this expression was averaged over a hemispherical solid angle to estimate the stagnant thermal conductivity for stochastic structures such as a metal foam. The resulting expression was found identical to the one obtained by Hsu et al., Krishnan et al., and Yang and Nakayama. Thus, the general expression can be used for both stochastic and periodic structures.
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 2
    Stochastic Bifurcation in Generalized Chua's Circuit Through Alpha-Stable Levy Noise
    (Institute of Electrical and Electronics Engineers Inc., 2018) Savacı, Ferit Acar; Yılmaz, Serpil
    In this study, we investigate the changes in the dynamics of generalized Chua's circuit through a-stable Levy noise in the framework of stochastic bifurcation concept. By choosing the noise intensity, characteristic exponent (impulsiveness parameter) and the skewness parameter of the a-stable Levy noise as the bifurcation parameters we have observed the qualitative changes in the stationary probability distributions and in the structures of the stochastic attractors.