Results 101 to 110 of about 74,200 (309)
Iterative Algorithm for Solving a System of Nonlinear Matrix Equations [PDF]
Journal of Applied Mathematics, 2012 We discuss the positive definite solutions for the system of nonlinear matrix equations X − A∗Y−nA = I and Y − B∗X−mB = I, where n, m are two positive integers. Some properties of solutions are studied, and the necessary and sufficient conditions for the existence of positive definite solutions are given.
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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
Numerical method for solving a nonlinear inverse diffusion equation [PDF]
, 2014 Numerical Method is a way in solving a model of a problem mathematically and predicts the behaviour of the problem. That is why this method is very important for both natural and manmade process. Some basic theory of the Numerical Method has been applied
Jominis, Rachel Aswin
core
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
On the positive definite solutions of nonlinear matrix equation X+A⋆ X−δA=Q [PDF]
, 2005 In this paper we consider the positive definite solutions of nonlinear matrix equation X+A⋆X−δA=Q, where δ∈(0,1], which appears for the first time in [S.M. El-Sayed, A.C.M.
El-Sayed, Salah M. +3 more
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Quasiperiodic solutions for matrix nonlinear Schrödinger equations [PDF]
Journal of Mathematical Physics, 1992 The Adler–Kostant–Symes theorem yields isospectral Hamiltonian flows on the dual ■erm>$$̃g+* of a Lie subalgebra ■erm>$$̃g+ of a loop algebra ■erm>$$̃g. A general approach relating the method of integration of Krichever, Novikov, and Dubrovin to such flows is used to obtain finite-gap solutions of matrix nonlinear Schrödinger ...
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Hybrid Metal–Carbon Ink for Printed Stretchable Temperature Sensors
Advanced Engineering Materials, EarlyView.We prepare conductive inks for temperature sensing with silver flakes and carbon or graphite flakes in a silicone elastomer matrix. Silver dominates the temperature‐dependent conductivity, while the carbon filler network ensures the stability of the conductive pathways and retains function under strain.
Makara Lay +3 more
wiley +1 more source
On analysis error covariances in variational data assimilation [PDF]
, 2008 The problem of variational data assimilation for a nonlinear evolution model is formulated as an optimal control problem to find the initial condition function (analysis).
Shutyaev, V. +5 more
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PERTURBATION ANALYSIS OF A NONLINEAR MATRIX EQUATION
Taiwanese Journal of Mathematics, 2006 Consider the nonlinear matrix equation $X + A^* X^{-2}A = I$, where $A$ is an $n \times n$ complex matrix, $I$ the identity matrix and $A^*$ the conjugate transpose of the matrix $A$. In this paper a perturbation bound for a class of special solutions of this matrix equation is derived, and an explicit expression of its condition number is obtained ...
Xu, Shufang, Cheng, Mingsong
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Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source