Results 111 to 120 of about 91,052 (310)
Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure
Advanced Engineering Materials, EarlyView.Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari +3 more
wiley +1 more source
Collocation schemes for periodic solutions of neutral delay differential equations
, 2005 We introduce two collocation schemes for the computation of periodic solutions of neutral delay differential equations (NDDEs): one based on a direct discretisation of the underlying NDDE, and one based on a discretisation of a related delay differential
Wilson, RE +8 more
core +1 more source
Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions
Advanced Engineering Materials, EarlyView.This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi +5 more
wiley +1 more source
, 2012 Includes abstract.Includes bibliographical references.In this thesis we develop and employ a spectral continuation algorithm, implemented in AUTO, to study the temporally periodic spatially localised soliton solutions of the driven, damped nonlinear ...
Lee-Thorpe, James
core
Homogenization for the cubic nonlinear Schrödinger equation on $\mathbb R^2$
, 2018 We study the defocusing inhomogeneous mass-critical nonlinear Schrödinger equation on $\mathbb R^2$ $$i u_t +Δu=g(nx) |u|^2 u$$ for initial data in $L^2(\mathbb R^2)$. We obtain sufficient conditions on $g$ to ensure existence and uniqueness of global solutions for $n$ sufficiently large, as well as homogenization.
openaire +2 more sources
Concentrating solutions for a class of nonlinear fractional Schrödinger equations in $\mathbb R^N$ [PDF]
Revista Matemática Iberoamericana, 2019 We deal with the existence of positive solutions for the following fractional Schrödinger equation: \varepsilon ^{2s} (-\Delta)^{s} u + V(x) u = f(u) \quad \text{in } \mathbb{R}^{N}, where
openaire +3 more sources
Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source
The Maximum Likelihood Stage Least Squares Estimator in the Nonlinear Simultaneous Equations Model [PDF]
The consistency and the asymptotic normality of the maximum likelihood estimator in the general nonlinear simultaneous equation model are proved. It is shown that the proof depends on the assumption of normality unlike in the linear simultaneous equation
Takeshi Amemiya
core
Nonlinear AnalysisWe study strongly nonlinear, third-order differential equations of type (Φ(k(t)u''(t)))' = f(t, u(t), u'(t), u''(t)), a.e. t ∈ J, where Φ is the singular Φ-Laplacian operator.
Alessandro Calamai, Francesca Papalini
doaj +1 more source
The Local Strong and Weak Solutions for a Generalized Novikov Equation
Abstract and Applied Analysis, 2012 The Kato theorem for abstract differential equations is applied to establish the local well-posedness of the strong solution for a nonlinear generalized Novikov equation in space C([0,T),Hs(R))∩C1([0,T),Hs-1(R)) with s>(3/2).
Meng Wu, Yue Zhong
doaj +1 more source