Results 111 to 120 of about 11,684,150 (395)
Electronic Journal of Differential Equations, 2018 In this work, we consider a one-dimensional Timoshenko system of thermoelasticity of type III with past history and distributive delay. It is known that an arbitrarily small delay may be the source of instability.
Jianghao Hao, Fei Wang
doaj
Relaxations of Conditions of Lyapunov Functions
Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021 In this study, stability conditions are given for nonlinear time varying systems using the classical Lyapunov 2nd Method and its arguments. A novel approach is utilized and so that uniform stability can also be proved by using an unclassical Lyapunov Function.
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Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components
Advanced Engineering Materials, EarlyView.This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller +5 more
wiley +1 more source
Stress Relaxation of Near-Critical Gels
, 2000 The time-dependent stress relaxation for a Rouse model of a crosslinked polymer melt is completely determined by the spectrum of eigenvalues of the connectivity matrix. The latter has been computed analytically for a mean-field distribution of crosslinks.
Aspelmeier, Timo +3 more
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Frontiers in Physiology, 2010 Metabolic syndrome is associated with reduced endothelial vasodilator function. It is also associated with the induction of cyclooxygenase-2 (COX2), which produces vasoactive prostanoids.
Emilie Vessieres +6 more
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Nitric oxide synthases: regulation and function.
European Heart Journal, 2012 Nitric oxide (NO), the smallest signalling molecule known, is produced by three isoforms of NO synthase (NOS; EC 1.14.13.39). They all utilize l-arginine and molecular oxygen as substrates and require the cofactors reduced nicotinamide-adenine ...
U. Förstermann, W. Sessa
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Ultrahigh‐molecular‐weight polyethylene powders (<≈40 μm) with a bulk density of 260 g L−1 are prepared from a silica supported bisimine pyridine iron catalyst. The nascent product is disentangled and can be thermally densified without loss of its low viscosity.
Adrian Vaghar +4 more
wiley +1 more source
eXPRESS Polymer Letters, 2010 Poly(vinyl alcohol) (PVA)-montmorillonite (MMT) clay nanocomposite films up to 10 wt% clay concentration were synthesized by aqueous solution grown technique. The relative complex dielectric function, alternating current electrical conductivity, electric
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Relaxation of convex functionals: the gap problem
Annales de l'Institut Henri Poincaré C, Analyse non linéaire, 2003 It is shown that the relaxed energy \mathcal{F}\left(u,A\right): = \inf \Big\{ \lim\!\! \inf_{n\rightarrow + \infty }\!\int \limits_{A}\! f(x,\nabla u_{n})dx:\{u_{n}\} \subset W_{\text{loc}}^{1,\beta }(A;\mathbb{R}^{d}),\, u_{n}\!\rightarrow\! u \text{ in }L^{1}(A;\mathbb{R}^{d}) \Big\},
ACERBI, Emilio Daniele Giovanni +2 more
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Stress relaxation in epithelial monolayers is controlled by the actomyosin cortex
Nature Physics, 2019 Epithelial monolayers are one-cell-thick tissue sheets that line most of the body surfaces, separating internal and external environments. As part of their function, they must withstand extrinsic mechanical stresses applied at high strain rates. However,
N. Khalilgharibi +15 more
semanticscholar +1 more source