Results 81 to 90 of about 289,283 (228)

Performance comparison between optimization algorithms for asymmetrical cascaded multilevel inverter control

open access: yesAutomatika, 2020
This paper discusses the hardware and control system design of the asymmetric cascade multilevel inverter. The asymmetric cascaded multilevel inverter structure is adopted to minimize bridges, gate drive circuits and DC power source number.
Lazhar Manai, Faouzi Armi, Mongi Besbes
doaj   +1 more source

Modeling Nonlinear Acoustic Wave Propagation With Third‐Order Elastic Constants Using the Finite Element Method

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Due to the widespread usage of specialized piezoelectric actuators in various applications, accurate simulations have become key components of modern design processes. Although simulation tools for piezoelectric devices are widely available, nonlinear effects, which occur when exciting near resonance at elevated amplitudes, are often neglected
Jonas Hölscher   +2 more
wiley   +1 more source

How Much Physics Should a Neural Network Know? Thermodynamics‐Informed Neural Networks for Rock Constitutive Modeling With Epistemic Uncertainty

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Machine learning offers a flexible route to constitutive modeling, with two emergent questions for geoscience applications: what level of thermodynamic constraint should be embedded in the network architecture, and how should predictive uncertainty be quantified when extrapolating from laboratory to field conditions? We address both challenges
Kangan Li   +3 more
wiley   +1 more source

PROGRAM MEMBANDINGKAN NEWTON RAPHSON DAN NEWTON RAPHSON TERMODIFIKASI DALAM PENYELESAIAN PERSAMAAN

open access: yes, 2007
Persamaan adalah merupakan kalimat terbuka yang menggunakan tanda hubung = (sama dengan). Permasalahan yang diangkat pada penelitian yaitu bagaimana membangun aplikasi numeris menggunakan MATLAB untuk membandingkan proses penyelesaian akar-akar persamaan
Nuryono, - 82013
core  

Aplicação de métodos numéricos para estimativa de variáveis psicrométricas Application of numeric methods for psychrometric variables estimation

open access: yesEngenharia Agrícola, 2006
O ar atmosférico é formado por uma composição de ar seco e vapor d'água, cujos valores da quantidade de vapor, em termos quantitativos, são variáveis em função dos elementos climáticos, tais como: temperatura e pressão.
Jarbas H. de Miranda   +4 more
doaj   +1 more source

A Model of Strategic Sustainable Investment

open access: yesMathematical Finance, Volume 36, Issue 4, Page 771-803, October 2026.
ABSTRACT We study a problem of optimal irreversible investment and emission reduction formulated as a nonzero‐sum dynamic game between an investor with environmental preferences and a firm. The game is set in continuous‐time on an infinite‐time horizon.
Tiziano De Angelis   +2 more
wiley   +1 more source

Impact and Compressive Performance of 3D‐Printed PA6/Functionalized Graphene Nanoplatelet Sandwich Structures With Auxetic Cores

open access: yesPolymer Composites, Volume 47, Issue 18, Page 16425-16441, 20 September 2026.
Schematic of PA6/functionalized graphene nanoplatelet compounding and filament extrusion to 3D printing, sandwich panel fabrication, and mechanical characterization. ABSTRACT This study examines the impact and compressive behavior of additively manufactured polyamide 6 (PA6) nanocomposite sandwich panels reinforced with amine‐functionalized graphene ...
Russo Swart   +3 more
wiley   +1 more source

Um Estudo do Método de Newton-Raphson [PDF]

open access: yes, 2015
O Método de Newton-Raphson é um eficiente método para se obter aproximação de raízes de funções reais. No entanto, os livros de cálculo em geral trazem apenas um estudo e aplicação de tal método no caso específico de funções de classe $C^2$, cujas ...
Souza, Marcus   +2 more
core  

计算运动学问题中牛顿迭代法的混沌现象

open access: yesJixie chuandong, 2000
In this papre the chaos in the application of Newton Raphson method to solving the nonlinear algebraic equation arising from computational kinematics is studied. With the analysis of iteration function, the mechanism of obtaining all solutions by Newton
谢进, 陈永
doaj  

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