Results 61 to 70 of about 10,239,244 (295)
Absolute stability of a class of fractional positive nonlinear systems
International Journal of Applied Mathematics and Computer Science, 2019 The positivity and absolute stability of a class of fractional nonlinear continuous-time and discrete-time systems are addressed. Necessary and sufficient conditions for the positivity of this class of nonlinear systems are established.
Kaczorek Tadeusz
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Generalized observer forms for discrete-time nonlinear systems [PDF]
Proceedings of the Estonian Academy of SciencesThe paper addresses the problem of transforming single-output discrete-time state equations into the generalized observer form, which comprises a linear observable component and a nonlinear injection term, depending on the inputs, output, and a finite ...
Arvo Kaldmäe +5 more
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Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
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Nonlocal Improvement of Controls in Nonlinear Discrete Systems
Известия Иркутского государственного университета: Серия "Математика", 2017 A nonlinear optimal control problem for discrete system with both control function and control parameters (parameters are at the system's right side and at the initial condition) is considered.
O. V. Morzhin
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Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design
Advanced Engineering Materials, EarlyView.This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare +5 more
wiley +1 more source
Flaw-tolerance of nonlocal discrete systems and interpretation according to network theory [PDF]
Fracture and Structural Integrity, 2014 Discrete systems are modeled as a network of nodes (particles, molecules, or atoms) linked by nonlinear springs to simulate the action of van der Waals forces. Such systems are nonlocal if links connecting non-adjacent nodes are introduced.
A. Infuso, M. Paggi
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Descriptor standard and positive discrete-time nonlinear systems
Archives of Control Sciences, 2015 A method of analysis of descriptor nonlinear discrete-time systems with regular pencils of linear part is proposed. The method is based on the Weierstrass-Kronecker decomposition of the pencils.
Kaczorek Tadeusz
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Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source
Preview repetitive control for polytopic nonlinear discrete-time systems
Science Progress, 2022 In this study, a preview repetitive control (PRC) strategy was developed for uncertain nonlinear discrete-time systems subjected to a previewable periodic reference signal.
Li Li, Chen Jia
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