Results 31 to 40 of about 20,897 (267)

Some Existence Results for Systems of Impulsive Stochastic Differential Equations

open access: yesAnnales Mathematicae Silesianae, 2021
In this paper we study a class of impulsive systems of stochastic differential equations with infinite Brownian motions. Sufficient conditions for the existence and uniqueness of solutions are established by mean of some fixed point theorems in vector ...
Mekki Sliman   +3 more
doaj   +1 more source

Nonlinear Degradation Modeling and Residual Life Prediction for Rollers Based on Kernel-based Wiener Process

open access: yesShanghai Jiaotong Daxue xuebao, 2023
In the process of steel rolling, due to wear and other reasons, the working performance of the roll under long and complex working conditions has a gradual decline.
WANG Hanyu, CHEN Zhen, ZHOU Di, CHEN Zhaoxiang, PAN Ershun
doaj   +1 more source

Prediction of remaining useful life time of aero engine based on the Wiener process of three-source uncertainty

open access: yesXi'an Gongcheng Daxue xuebao, 2021
Given the problem of three-sources uncertainty in aero engine degradation process and the assumption of normal distribution of measurement error in existing research, a Wiener process aero engine residual useful life time(RUL) prediction method with ...
Guangshe ZHAO, Chuntao ZHAO
doaj   +1 more source

Stochastic calculation of curves dynamics of enterprise

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
The article proposes mathematical models of the stochastic dynamics of the single-factor manufacturing enterprises development through internal and external investments.
Aleksandr Leonidovich Saraev   +1 more
doaj   +1 more source

Cylindrical Wiener Processes [PDF]

open access: yes, 2010
In this work cylindrical Wiener processes on Banach spaces are defined by means of cylindrical stochastic processes, which are a well considered mathematical object. This approach allows a definition which is a simple straightforward extension of the real-valued situation.
openaire   +2 more sources

RUL Prediction of Railway PCCS Based on Wiener Process Model with Unequal Interval Wear Data

open access: yesApplied Sciences, 2020
The railway pantograph carbon contact strip (PCCS) plays a critical role in collecting the electric current from the catenary to guarantee the steady power supply for the train. The catenary contacts with the PCCS and slides from one side to another side
Qingluan Guan   +4 more
doaj   +1 more source

Stochastic Equations and Equations for Probabilistic Characteristics of Processes with Damped Jumps

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
Processes such as shot noise are an adequate tool for modeling discontinuous random processes with a damping effect. Such processes arise in various fields of physics, technology and human activity, including the field of finance.
I. V. Melnikova, V. A. Bovkun
doaj   +1 more source

Quantifying Cotton Content in Post-Consumer Polyester/Cotton Blend Textiles via NIR Spectroscopy: Current Attainable Outcomes and Challenges in Practice

open access: yesRecycling
Rising volumes of textile waste necessitate the development of more efficient recycling systems, with a primary focus on the optimization of sorting technologies.
Hana Stipanovic   +6 more
doaj   +1 more source

Random attractors for Ginzburg–Landau equations driven by difference noise of a Wiener-like process

open access: yesAdvances in Difference Equations, 2019
We consider a Wong–Zakai process, which is the difference of a Wiener-like process. We then prove that there are random attractors for non-autonomous Ginzburg–Landau equations driven by linear multiplicative noise in terms of Wong–Zakai process and ...
Fengling Wang, Jia Li, Yangrong Li
doaj   +1 more source

Effects of the Wiener Process on the Solutions of the Stochastic Fractional Zakharov System

open access: yesMathematics, 2022
We consider in this article the stochastic fractional Zakharov system derived by the multiplicative Wiener process in the Stratonovich sense. We utilize two distinct methods, the Riccati–Bernoulli sub-ODE method and Jacobi elliptic function method, to ...
Farah M. Al-Askar   +3 more
doaj   +1 more source

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