Results 41 to 50 of about 3,334 (209)
Deep Underground Science and Engineering, EarlyView.This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang +5 more
wiley +1 more source
Robust Stability of Dynamical System
Engineering Transactions, 1996 A general concept of the robust stability of uncertain nonlinear dynamical systems is given. By using the method of optimal Lyapunov functions, the robust stability analysis is performed in the general case of a multidimensional system described by ...
A. Ossowski
doaj
Approximate MSEV State-Space Based Optimal Control of Nonlinear and Nonstationary Dynamic Systems
MathematicsA new class of modified minimum state error variance (MSEV) state-space based optimal linear quadratic Gaussian (LQG) regulators for closed-loop structures with estimated feedback has been proposed in this article.
Nemanja Deura +5 more
doaj +1 more source
An interpretable hybrid adaptive framework combining empirical mode decomposition and deep learning for real-time nonstationary signal analysis in smart manufacturing [PDF]
Journal of Intelligent Manufacturing and Special EquipmentPurposeIn the context of Industry 4.0, smart manufacturing systems produce complex, nonstationary and nonlinear signal data streams that challenge traditional analytical methods.
Milad Rahmati, Nima Rahmati
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Deep Underground Science and Engineering, EarlyView.This paper presents temporal and adaptive‐frequency network with MixStyle (TAMNet), a deep time‐series modeling framework for accurate and robust multi‐well oil productivity forecasting. TAMNet integrates transformer and long short‐term memory architectures to capture both short‐ and long‐term temporal dependencies, enhanced by a temporal gate unit ...
Chunxi Yang +6 more
wiley +1 more source
Artificial intelligence for adaptive neuromodulation in drug‐resistant epilepsy
Epilepsia, EarlyView.Abstract Drug‐resistant epilepsy (DRE) affects nearly one third of people with epilepsy and is associated with substantial cognitive, psychiatric, and mortality burdens. For patients who are not candidates for resection or laser interstitial thermal therapy, neuromodulation therapies such as vagus nerve stimulation, deep brain stimulation, and ...
Amir Hossein Daraie +10 more
wiley +1 more source
WALSH FUNCTIONS IN LINEAR- QUADRATIC OPTIMIZATION PROBLEMS OF LINEAR NONSTATIONARY SYSTEMS
Міжнародний науково-технічний журнал "Проблеми керування та інформатики"Currently, the solution of the problems of analytical design of the optimal controller (ADOC) for stationary dynamic objects is well studied and a number of works are devoted to them.
О.А. Стенін +2 more
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Sensors, 2020 A blade rub-impact fault is one of the complex and frequently appearing faults in turbines. Due to their nonlinear and nonstationary nature, complex signal analysis techniques, which are expensive in terms of computation time, are required to extract ...
Alexander E. Prosvirin +2 more
doaj +1 more source
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT Despite the crucial need for fully quantitative risk assessment of large‐scale structures, their performance is typically assessed through deterministic or semi‐quantitative approaches. The main preventing factor is the computational burden of probabilistic seismic analyses.
M. Amin Hariri‐Ardebili +6 more
wiley +1 more source
Energy Science &Engineering, EarlyView.A Type‐3 fuzzy ambiguity encoder converts rolling wind, price, reserve‐activation, and confidence features into central estimates and nested uncertainty bounds. These parameters are updated within a receding‐horizon MILP/MIQP that coordinates wind, battery, and supercapacitor capacity across day‐ahead and ancillary‐service markets.
Shurong Yan +5 more
wiley +1 more source