Results 21 to 30 of about 1,147,771 (298)
An Insight into the Potassium Currents of hERG and Their Simulation
Molecules, 2023 By assuming that a stepwise outward movement of the four S4 segments of the hERG potassium channel determines a concomitant progressive increase in the flow of the permeant potassium ions, the inward and outward potassium currents can be simulated by ...
Rolando Guidelli
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The Annals of Probability, 1999 We study an ordinary differential equation controlled by a stochastic process. We present results on existence and uniqueness of solutions, on associated local times (Trotter and Ray-Knight theorems), and on time and direction of bifurcation. A relationship with Lipschitz approximations to Brownian paths is also discussed.
Burdzy, Krzysztof, Bass, Richard F.
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A Stochastic Approach for Product Costing in Manufacturing Processes
Mathematics, 2021 Nowadays, manufacturing companies are characterized by complex systems with multiple products being manufactured in multiple assembly lines. In such situations, traditional costing systems based on deterministic cost models cannot be used.
Paulo Afonso +4 more
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Stochastic Frontier Models [PDF]
, 2008 The stochastic frontier model was first proposed in the context of production function estimation to account for the effect of technical inefficiency. The inefficiency causes actual output to fall below the potential level (that is, the production frontier) and also raises production cost above the minimum level (that is, the cost frontier).
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A Markovian batch arrival queueing system with disasters, working breakdowns, and impatience: Mathematical modeling and economic analysis [PDF]
Yugoslav Journal of Operations ResearchMachining systems are essential for many industrial applications, such as manufacturing, processing, and assembly. However, these systems are often exposed to various sources of uncertainty and disruption, such as disasters and customer impatience. These
Ramdani Hayat +2 more
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Dynamic Behavior of a Stochastic Amensalism Population Model
Journal of Harbin University of Science and Technology, 2022 Aiming at the problem of biased symbiosis dynamics affected by environmental factors, according to the theory of stochastic differential equation, the stochastic biased symbiosis dynamics model is established by introducing white noise, and the dynamic ...
AI Xiao-hui, DENG Wen-bo, LI Peng-zhe
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Assessment of stochastic and deterministic models of 6304 quasar lightcurves from SDSS Stripe 82 [PDF]
, 2013 The optical light curves of many quasars show variations of tenths of a magnitude or more on time scales of months to years. This variation often cannot be described well by a simple deterministic model.
Andrae, Rene +2 more
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Almost Periodic Solutions for Impulsive Fractional Stochastic Evolution Equations
International Journal of Analysis and Applications, 2014 In this paper, we consider the existence of square-mean piecewise almost periodic solutions for impulsive fractional stochastic evolution equations involving Caputo fractional derivative.
Toufik Guendouzi, Lamia Bousmaha
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Almost periodic mild solutions for stochastic delay functional. differential equations driven by a fractional Brownian motion [PDF]
Romanian Journal of Mathematics and Computer Science, 2014 In this paper we investigate the existence and stability of quadratic-mean almost periodic mild solutions to stochastic delay functional differential equations driven by fractional Brownian motion with Hurst parameter H > 1/2 , under some suitable ...
Toufik Guendouzi,, Khadem Mehdi
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Stochastic Modelling of Turbulent Flows for Numerical Simulations
Fluids, 2020 Numerical simulations are a powerful tool to investigate turbulent flows, both for theoretical studies and practical applications. The reliability of a simulation is mainly dependent on the turbulence model adopted, and improving its accuracy is a ...
Carlo Cintolesi, Etienne Mémin
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