Results 21 to 30 of about 21,524 (265)
Shanghai 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
Xi'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
Cylindrical Wiener Processes [PDF]
, 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
Stochastic calculation of curves dynamics of enterprise
Vestnik 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
Complexity, 2020 Wiener, Hammerstein, and Wiener–Hammerstein structures are useful for modelling dynamic systems that exhibit a static type nonlinearity. Many methods to identify these systems can be found in the literature; however, choosing a method requires prior ...
J. Zambrano +3 more
doaj +1 more source
Applied SciencesAccurate quantification of cotton content is a key prerequisite for efficient textile recycling. However, it remains challenging due to material heterogeneity and technical limitations.
David Lilek +7 more
doaj +1 more source
RUL Prediction of Railway PCCS Based on Wiener Process Model with Unequal Interval Wear Data
Applied 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
Известия 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
Preservation of Mean-Square Lyapunov Exponents for Nonautonomous Stochastic Evolution Equations
AxiomsWe study the long-time behavior of nonlinear stochastic evolution equations in a separable Hilbert space driven by a Q-Wiener process. The linear part of the equation is generated by a strongly continuous semigroup with an exponential dichotomy, which ...
Dmytro Shtefan +2 more
doaj +1 more source
On the Transformation of Diffusion Processes into the Wiener Process [PDF]
SIAM Journal on Applied Mathematics, 1980 Necessary and sufficient conditions are given for transforming (constructively) a one-dimensional diffusion process described by a Kolmogorov equation into the Wiener process. These conditions are shown to be equivalent to invariance of a parabolic partial differential equation under a six-parameter Lie group of point transformations.
openaire +2 more sources