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Optimal Maintenance Policy for a Technical System Subject to Hidden Faults and Randomly Occurring Hazards [PDF]

International Journal of Mathematical, Engineering and Management Sciences, 2021
The paper presents a method of finding the optimal time between inspections for a system subject to degradation-related faults which make the system vulnerable to randomly occurring external hazards that may cause its damage.
Jacek Malinowski
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Mathematical and Experimental Model of Neuronal Oscillator Based on Memristor-Based Nonlinearity

Mathematics, 2023
This article presents a mathematical and experimental model of a neuronal oscillator with memristor-based nonlinearity. The mathematical model describes the dynamics of an electronic circuit implementing the FitzHugh–Nagumo neuron model.
Ivan Kipelkin, Svetlana Gerasimova, Davud Guseinov, Dmitry Pavlov, Vladislav Vorontsov, Alexey Mikhaylov, Victor Kazantsev   +6 more
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On-Board Random Vibration-Based Robust Detection of Railway Hollow Worn Wheels under Varying Traveling Speeds

Machines, 2023
The problem of the prompt detection of early-stage hollow worn wheels in railway vehicles via on-board random vibration measurements under normal operation and varying speeds is investigated.
Nikolaos Kaliorakis, John S. Sakellariou, Spilios D. Fassois   +2 more
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Information‐Theoretic Scores for Bayesian Model Selection and Similarity Analysis: Concept and Application to a Groundwater Problem

Water Resources Research, 2023
Bayesian model selection (BMS) and Bayesian model justifiability analysis (BMJ) provide a statistically rigorous framework for comparing competing models through the use of Bayesian model evidence (BME).
Maria Fernanda Morales Oreamuno, Sergey Oladyshkin, Wolfgang Nowak   +2 more
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Improving Thermochemical Energy Storage Dynamics Forecast with Physics-Inspired Neural Network Architecture

Energies, 2020
Thermochemical Energy Storage (TCES), specifically the calcium oxide (CaO)/calcium hydroxide (Ca(OH)2) system is a promising energy storage technology with relatively high energy density and low cost. However, the existing models available to predict the
Timothy Praditia, Thilo Walser, Sergey Oladyshkin, Wolfgang Nowak   +3 more
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On the Theory of Unsteady-State Operation of Bulk Continuous Crystallization

Crystals, 2022
Motivated by an important application in the chemical and pharmaceutical industries, we consider the non-stationary growth of a polydisperse ensemble of crystals in a continuous crystallizer.
Eugenya V. Makoveeva, Dmitri V. Alexandrov, Alexander A. Ivanov   +2 more
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Morphological/Dynamic Instability of Directional Crystallization in a Finite Domain with Intense Convection

Crystals, 2023
This study is devoted to the morphological/dynamic instability analysis of directional crystallization processes in finite domains with allowance for melt convection.
Eugenya V. Makoveeva, Irina E. Koroznikova, Alexandra E. Glebova, Dmitri V. Alexandrov   +3 more
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Toward Reflective Spiking Neural Networks Exploiting Memristive Devices

Frontiers in Computational Neuroscience, 2022
The design of modern convolutional artificial neural networks (ANNs) composed of formal neurons copies the architecture of the visual cortex. Signals proceed through a hierarchy, where receptive fields become increasingly more complex and coding sparse ...
Valeri A. Makarov, Valeri A. Makarov, Sergey A. Lobov, Sergey A. Lobov, Sergey A. Lobov, Sergey Shchanikov, Sergey Shchanikov, Alexey Mikhaylov, Viktor B. Kazantsev, Viktor B. Kazantsev, Viktor B. Kazantsev   +10 more
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Analysis of Smoluchowski’s Coagulation Equation with Injection

Crystals, 2022
The stationary solution of Smoluchowski’s coagulation equation with injection is found analytically with different exponentially decaying source terms. The latter involve a factor in the form of a power law function that plays a decisive role in forming ...
Eugenya V. Makoveeva, Dmitri V. Alexandrov, Sergei P. Fedotov   +2 more
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Stochastic Port-Hamiltonian Systems

Journal of Nonlinear Science, 2022
AbstractIn the present work we formally extend the theory of port-Hamiltonian systems to include random perturbations. In particular, suitably choosing the space of flow and effort variables we will show how several elements coming from possibly different physical domains can be interconnected in order to describe a dynamic system perturbed by general ...
Cordoni F., Di Persio, L. and Muradore, R   +3 more
openaire   +4 more sources