Results 61 to 70 of about 960,683 (280)

An Explicit Numerical Scheme for Milne’s Phase–Amplitude Equations

open access: yesAtoms
We present an explicit numerical method to solve Milne’s phase–amplitude equations. Existing methods directly solve Milne’s nonlinear equation for amplitude.
Robin Piron, Mikael Tacu
doaj   +1 more source

High order amplitude equation for steps on creep curve

open access: yes, 1997
We consider a model proposed by one of the authors for a type of plastic instability found in creep experiments which reproduces a number of experimentally observed features.
A. C. Newell   +39 more
core   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Stability Study of Stationary Solutions of the Viscous Burgers Equation [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2007
Stability study of stationary solutions of the viscous Burgers equation using Fourier mode stability analysis for the stationary solutions , where  is constant and , in two cases is analyzed. Firstly when the wave amplitude  is constant and secondly when
Mohammad Sabawi
doaj   +1 more source

The scattering approach for the Camassa-Holm equation

open access: yes, 2002
We present an approach proving the integrability of the Camassa--Holm equation for initial data of small ...
Lenells, Jonatan
core   +2 more sources

Amplitude equations for SPDEs with cubic nonlinearities [PDF]

open access: yesStochastics, 2011
For a quite general class of stochastic partial differential equations with cubic nonlinearities, we derive rigorously amplitude equations describing the essential dynamics using the natural separation of timescales near a change of stability. Typical examples are the Swift–Hohenberg equation, the Ginzburg–Landau (or Allen–Cahn) equation and some model
Blömker, Dirk (Prof. Dr.)   +1 more
openaire   +3 more sources

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Vibration suppression analysis of iced transmission lines under axial time-delay velocity feedback strategy

open access: yesTheoretical and Applied Mechanics Letters
To ensure the safety of power energy transmission channel and mitigate the harm caused by galloping of iced transmission lines, the axial time-delay velocity feedback strategy is adopted to suppress the galloping.
Maoming Hu   +5 more
doaj   +1 more source

Korteweg-de Vries description of Helmholtz-Kerr dark solitons [PDF]

open access: yes, 2006
A wide variety of different physical systems can be described by a relatively small set of universal equations. For example, small-amplitude nonlinear Schrödinger dark solitons can be described by a Korteweg-de Vries (KdV) equation.
Chamorro-Posada P   +21 more
core   +3 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

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