Results 61 to 70 of about 54,909 (322)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 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

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

Advanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
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

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

New Trends in Applying LRM to Nonlinear Ill-Posed Equations

Mathematics
Tautenhahn (2002) studied the Lavrentiev regularization method (LRM) to approximate a stable solution for the ill-posed nonlinear equation κ(u)=v, where κ:D(κ)⊆X⟶X is a nonlinear monotone operator and X is a Hilbert space.
Santhosh George, Ramya Sadananda, Jidesh Padikkal, Ajil Kunnarath, Ioannis K. Argyros   +4 more
doaj   +1 more source

Fast finite difference solvers for singular solutions of the elliptic Monge-Amp\`ere equation

, 2010
The elliptic Monge-Ampere equation is a fully nonlinear Partial Differential Equation which originated in geometric surface theory, and has been applied in dynamic meteorology, elasticity, geometric optics, image processing and image registration ...
A.M. Oberman, Ambrosio, B.D. Froese, Bakelman, Benamou, Benamou, Budd, Caffarelli, Caffarelli, Cohen-Or, Crandall, Dean, Dean, Delzanno, Evans, Feng, Feng, Frisch, Froese, Glimm, Gutiérrez, Haker, Haker, Haltiner, Kasahara, Loeper, Oberman, Oberman, Oberman, Oliker, Pogorelov, Stojanovic, Stoker, Strang, ur Rehman, Urbas, Villani, Westcott, Zheligovsky   +38 more
core   +1 more source

Existence of a Monotone Solution of a Nonlinear Differential Equation

Journal of Mathematical Analysis and Applications, 1995
If \(n\) is even (odd), \(f(t,w_1, w_2, \ldots, w_n) \leq 0 (\geq 0)\) for \(t \in [0, \infty)\), \(0 \leq (-1)^{i - 1} w_i \leq 1\), \(i = 1,2, \ldots, n\), \(f(.,w)\) is not identically zero on any subinterval of \([0, \infty)\) for every fixed \(w \in R^n\) and \(\lim_{w_1 \to 0 +} {f(t, w_1, w_2, \ldots, w_n) \over w_1} = \vartheta\), where ...
openaire   +2 more sources