Results 101 to 110 of about 55,379 (247)
Shock and Vibration, 2013 The formulation and solution of the inverse problem of damage identification based on an one-dimensional wave propagation approach are presented in this paper.
R.A. Tenenbaum +2 more
doaj +1 more source
Spectropolarimetric NLTE inversion code SNAPI
, 2018 Inversion codes are computer programs that fit a model atmosphere to the observed Stokes spectra, thus retrieving the relevant atmospheric parameters. The rising interest in the solar chromosphere, where spectral lines are formed by scattering, requires ...
Milic, Ivan, van Noort, Michiel
core +1 more source
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Modern engineering systems require advanced uncertainty‐aware model updating methods that address parameter correlations beyond conventional interval analysis. This paper proposes a novel framework integrating Riemannian manifold theory with Gaussian Process Regression (GPR) for systems governed by Symmetric Positive‐Definite (SPD) matrix ...
Yanhe Tao +3 more
wiley +1 more source
An Enhanced Levenberg--Marquardt Method via Gram Reduction
Proceedings of the AAAI Conference on Artificial IntelligenceThis paper studies the problem of solving the system of nonlinear equations. We propose the Gram-reduced Levenberg--Marquardt method, which reuses the Gram matrix. Our method has a global convergence guarantee without relying on any step of line-search or solving sub-problems.
Liu, Chengchang +2 more
openaire +2 more sources
A modified two steps Levenberg–Marquardt method for nonlinear equations
Journal of Computational and Applied Mathematics, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amini, Keyvan, Rostami, Faramarz
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Solid Particle Erosion and Predictive Modeling of Epoxy Composites Reinforced With Diatom Frustules
Polymer Composites, EarlyView.Schematic representation of the solid particle erosion process and predictive modeling workflow for diatom frustule‐reinforced epoxy composites, illustrating the test setup, erosion response curve, and filler‐matrix interaction. ABSTRACT This study examines the solid particle erosion wear behavior of epoxy composites reinforced with 5–20 wt% calcined ...
Elif Gültürk +4 more
wiley +1 more source
A two-step smoothing Levenberg-Marquardt algorithm for real-time pricing in smart grid
AIMS MathematicsAs is well known, the utility function is significant for solving the real-time pricing problem of smart grids. Based on a new utility function, the social welfare maximization model is considered in this paper.
Linsen Song , Gaoli Sheng
doaj +1 more source
A Monte-Carlo-Based Network Method for Source Positioning in Bioluminescence Tomography
International Journal of Biomedical Imaging, 2007 We present an approach based on the improved Levenberg Marquardt (LM) algorithm of backpropagation (BP) neural network to estimate the light source ...
Zhun Xu +3 more
doaj +1 more source
Fast and numerically stable circle fit
, 2015 We develop a new algorithm for fitting circles that does not have drawbacks commonly found in existing circle fits. Our fit achieves ultimate accuracy (to machine precision), avoids divergence, and is numerically stable even when fitting circles get ...
Abdul-Rahman, Houssam, Chernov, Nikolai
core +1 more source
Comparison of the Coating Structure of Silicon‐Based PECVD Coatings With Varying Organic Content
Plasma Processes and Polymers, EarlyView.Silicon‐based PECVD coatings transition abruptly from organic SiOCH to oxidic SiOx at ~32 at% silicon, exhibiting threshold behavior in barrier performance. Chemical composition seems to dominate over porosity: SiOx coatings unexpectedly show higher porosity yet superior barrier properties, possibly due to rigid cage‐like molecular structures ...
Jonas Franke +7 more
wiley +1 more source