Results 31 to 40 of about 179,954 (164)

Impact of Mining Disturbance on Highway Sustainability: A Case Study of Aleksinac Mine Area, Serbia

open access: yesApplied Sciences
Underground coal mining in expansive basins has led to land subsidence, posing significant threats to the aboveground structures and the environment. Addressing this issue is paramount, necessitating accurate and reliable prediction methods.
Nenad M. Vušović   +2 more
doaj   +1 more source

Application of Finite Volume Method to Structural Stochastic Dynamics

open access: yesAdvances in Mechanical Engineering, 2013
The stochastic dynamic problems were becoming more difficult after considering the influences of stochastic factors and the complexity of the dynamic problems.
Weidong Chen   +4 more
doaj   +1 more source

Stochastic approximation methods [PDF]

open access: yesCzechoslovak Mathematical Journal, 1960
The methods are concerned with the problem of approximating a point of the q-dimensional Euclidian space at which a function f acquires its minimum or maximum or at which f is equal to a predetermined number. These methods are used to determine optimum conditions for concrete chemical and physical processes.
openaire   +1 more source

Bearing fault diagnosis by stochastic resonance method in periodical potential system

open access: yes工程科学学报, 2018
In industrial production, bearings are widely used in rotating machinery. Bearing fault diagnosis plays an important role in preventing disasters and protecting lives and properties.
ZHANG Jing-ling   +4 more
doaj   +1 more source

Stochastic average model methods

open access: yesComputational Optimization and Applications
We consider the solution of finite-sum minimization problems, such as those appearing in nonlinear least-squares or general empirical risk minimization problems. We are motivated by problems in which the summand functions are computationally expensive and evaluating all summands on every iteration of an optimization method may be undesirable.
Matt Menickelly, Stefan M. Wild
openaire   +4 more sources

Stochastic precision analysis of hypersonic flight vehicle attitude control system in the presence of uncertainties

open access: yesSystems Science & Control Engineering, 2020
This study presents a novel stochastic precision analysis method for hypersonic flight vehicle (HFV) attitude control system in the presence of uncertainties, including parameter perturbation and external disturbance.
Ruimin Jiang, Jun Zhou, Jianguo Guo
doaj   +1 more source

A class of stochastic Gronwall’s inequality and its application

open access: yesJournal of Inequalities and Applications, 2018
This paper puts forward the basic form of stochastic Gronwall’s inequality and uses, respectively, the iterative method, the integral method and the martingale representation method to prove it.
Xin Wang, Shengjun Fan
doaj   +1 more source

The family of random attractors for nonautonomous stochastic higher-order Kirchhoff equations with variable coefficients

open access: yesOpen Mathematics, 2022
In this paper, the stochastic asymptotic behavior of the nonautonomous stochastic higher-order Kirchhoff equation with variable coefficients is studied.
Lv Penghui, Lin Guoguang, Sun Yuting
doaj   +1 more source

Multidimensional Stochastic Approximation Methods

open access: yesThe Annals of Mathematical Statistics, 1954
Multidimensional stochastic approximation schemes are presented, and conditions are given for these schemes to converge a.s. (almost surely) to the solutions of $k$ stochastic equations in $k$ unknowns and to the point where a regression function in $k$ variables achieves its maximum.
openaire   +3 more sources

Eigenvalue analysis for high telecommunication towers with lognormal stiffness by the response function method and SFEM

open access: yesComputer Assisted Methods in Engineering and Science, 2017
The main aim of this paper is to demonstrate the application of the generalized stochastic perturbation technique to model the lognormal random variables in structural mechanics. This is done to study probabilistic characteristics of the eigenvibrations
Marcin Marek Kamiński, Jacek Szafran
doaj  

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