Results 41 to 50 of about 53,983 (280)

Dynamical Systems Gradient method for solving nonlinear equations with monotone operators

, 2008
A version of the Dynamical Systems Gradient Method for solving ill-posed nonlinear monotone operator equations is studied in this paper. A discrepancy principle is proposed and justified. A numerical experiment was carried out with the new stopping rule.
A. G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, A.G. Ramm, D. Pascali, E. Zeidler, I.V. Skrypnik, J.L. Lions, K. Deimling, M.M. Vainberg, N. S. Hoang, N.S. Hoang, U. Tautenhahn, U. Tautenhahn, V. Ivanov, V.A. Morozov   +24 more
core   +2 more sources

Stochastic Porous Media Equation and Self-Organized Criticality

, 2008
The existence and uniqueness of nonnegative strong solutions for stochastic porous media equations with noncoercive monotone diffusivity function and Wiener forcing term is proven.
Barbu, Viorel, Da Prato, Giuseppe, Röckner, Michael   +2 more
core   +1 more source

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

Advanced 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, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

On two symmetric Dai-Kou type schemes for constrained monotone equations with image recovery application

EURO Journal on Computational Optimization, 2023
The Dai-Kou method Dai and Kou (2013), [12] is efficient for solving unconstrained optimization problems. However, its modified variants are quite rare for constrained nonlinear monotone equations.
Kabiru Ahmed, Mohammed Yusuf Waziri, Abubakar Sani Halilu, Salisu Murtala   +3 more
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

A New Hybrid Approach for Solving Large-scale Monotone Nonlinear Equations

Journal of Mathematical and Fundamental Sciences, 2020
In this paper, a new hybrid conjugate gradient method for solving monotone nonlinear equations is introduced. The scheme is a combination of the Fletcher-Reeves (FR) and Polak-Ribiére-Polyak (PRP) conjugate gradient methods with the Solodov and Svaiter ...
Jamilu Sabi’u, Abdullah Shah, Mohammed Yusuf Waziri, Muhammad Kabir Dauda   +3 more
doaj   +1 more source

Monotone iterative technique for finite systems of nonlinear Riemann-Liouville fractional differential equations [PDF]

Opuscula Mathematica, 2011
Comparison results of the nonlinear scalar Riemann-Liouville fractional differential equation of order \(q\), \(0 \lt q \leq 1\), are presented without requiring Hölder continuity assumption.
Z. Denton, A. S. Vatsala
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

An extended method of quasilinearization for nonlinear impulsive differential equations with a nonlinear three-point boundary condition

Electronic Journal of Qualitative Theory of Differential Equations, 2007
In this paper, we discuss an extended form of generalized quasilinearization technique for first order nonlinear impulsive differential equations with a nonlinear three-point boundary condition.
Bashir Ahmad, Ahmed Alsaedi
doaj   +1 more source