Results 11 to 20 of about 923,492 (296)
Random Walks in Random Environments [PDF]
Journal of Physics A, 2006 Random walks provide a simple conventional model to describe various transport processes, for example propagation of heat or diffusion of matter through a medium. However, in many practical cases the medium is highly irregular due to defects, impurities,
Alexander +20 more
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Uncertain Random Optimization Models Based on System Reliability
International Journal of Computational Intelligence Systems, 2020 The reliability of a dynamic system is not constant under uncertain random environments due to the interaction of internal and external factors. The existing researches have shown that some complex systems may suffer from dependent failure processes ...
Qinqin Xu, Yuanguo Zhu
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Determining the Economic Manufacturing Lot Size with Expedited Fabrication Rate and Product Quality Assurance [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2020 Operations in manufacturing environments are turbulent. Thus, production managers must be capable of dealing with diverse and unexpected situations, such as either random production of imperfect items or unanticipated changes in customers’ orders ...
Yuan-Shyi Peter Chiu +3 more
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Confounding environmental colour and distribution shape leads to underestimation of population extinction risk. [PDF]
PLoS ONE, 2013 The colour of environmental variability influences the size of population fluctuations when filtered through density dependent dynamics, driving extinction risk through dynamical resonance. Slow fluctuations (low frequencies) dominate in red environments,
Mike S Fowler, Lasse Ruokolainen
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Continuous-State Branching Processes in Lévy Random Environments [PDF]
Journal of Theoretical Probability, 2017 A general continuous-state branching processes in random environment (CBRE-process) is defined as the strong solution of a stochastic integral equation. The environment is determined by a L vy process with no jump less than $-1$. We give characterizations of the quenched and annealed transition semigroups of the process in terms of a backward ...
He, Hui, Li, Zenghu, Xu, Wei
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Convergence to extremal processes in random environments and extremal ageing in SK models [PDF]
, 2012 This paper extends recent results on aging in mean field spin glasses on short time scales, obtained by Ben Arous and Gun [2] in law with respect to the environment, to results that hold almost surely, respectively in probability, with respect to the ...
Adéla Švejda +11 more
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Branching Processes in Random Environment with Sibling Dependence [PDF]
Journal of Mathematical Sciences, 2020 We consider a population of particles with unit life length. Dying each particle produces offspring whose size depends on the random environment specifying the reproduction law of all particles of the given generation and on the number of relatives of the particle.
Vatutin, V. A., Dyakonova, E. E.
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Applied Sciences, 2021 Probabilistic models of corrosion rate estimation in the case of two NiTi alloys obtained by different technological processes are analysed in this paper.
Nataša Kovač +4 more
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Phenotypic switching of populations of cells in a stochastic environment [PDF]
, 2018 In biology phenotypic switching is a common bet-hedging strategy in the face of uncertain environmental conditions. Existing mathematical models often focus on periodically changing environments to determine the optimal phenotypic response.
Galla, Tobias +2 more
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New Journal of Physics, 2018 A considerable number of systems have recently been reported in which Brownian yet non-Gaussian dynamics was observed. These are processes characterised by a linear growth in time of the mean squared displacement, yet the probability density function of ...
Vittoria Sposini +4 more
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