Results 21 to 30 of about 267,312 (266)
A New Approach to Non-Singular Plane Cracks Theory in Gradient Elasticity
Mathematical and Computational Applications, 2019 A non-local solution is obtained here in the theory of cracks, which depends on the scale parameter in the non-local theory of elasticity. The gradient solution is constructed as a regular solution of the inhomogeneous Helmholtz equation, where the ...
Sergey A. Lurie +2 more
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ORGANISMAL COMPLEXITY AND THE POTENTIAL FOR EVOLUTIONARY DIVERSIFICATION [PDF]
Evolution, 2014 We present two theoretical approaches to investigate whether organismal complexity, defined as the number of quantitative traits determining fitness, and the potential for adaptive diversification are correlated. The first approach is independent of any specific ecological model and based on curvature properties of the fitness landscape as a function ...
Svardal, Hannes +2 more
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Revisiting the Reflected Caustics Method: the Accurate Shape of the “Initial Curve”
Engineering Transactions, 2013 The shape of the “initial curve”, i.e. the locus of material points, which if properly illuminated provide (under specific conditions) the “caustic curve”, is explored.
Christos F. MARKIDES +1 more
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Late ventricular potentials in risk assessment of the occurrence of complex ventricular arrhythmia in patients with myocardial infarction and heart failure [PDF]
Vojnosanitetski Pregled, 2004 Aim. To determine the prognostic significance of late ventricular potentials on signal-averaged electrocardiogram and left ventricular ejection fraction for the occurrence of complex ventricular arrhythmia in patients treated with accelerated tissue-type
Ćosić Zoran +3 more
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Jamming anomaly in -symmetric systems
New Journal of Physics, 2016 The Schrödinger equation with a ${ \mathcal P }{ \mathcal T }$ -symmetric potential is used to model an optical structure consisting of an element with gain coupled to an element with loss. At low gain–loss amplitudes γ , raising the amplitude results in
I V Barashenkov +2 more
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Stresses and Displacements in an Elliptically Perforated Circular Disc Under Radial Pressure
Engineering Transactions, 2014 The complex potentials governing the elastic equilibrium of a finite circular disc, elliptically perforated at its center, are obtained using Muskhelishvili’s formulation.
Christos F. MARKIDES +1 more
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Complex Tasks: Potentials and Pitfalls
Mathematics, 2020 Life in today’s world is characterized by complexity and rapid change. Twenty-first century skills and especially mathematical understanding are supposed to crucially contribute to meeting the demands of our world since mathematics offers strategies to ...
Nina Bohlmann, Ralf Benölken
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A numerical method for the solution of plane crack problems in finite media
International Journal of Mathematics and Mathematical Sciences, 1980 A general method for the solution of plane isotropic elasticity crack problems inside a finite medium of arbitrary shape or an infinite medium with holes of arbitrary shape is presented.
P. S. Theocaris, N. Ioakimidis
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npj Computational Materials, 2021 Large scale atomistic simulations provide direct access to important materials phenomena not easily accessible to experiments or quantum mechanics-based calculation approaches.
Tongqi Wen +6 more
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A Multi-Layered Ring Under Parabolic Pressure
Engineering Transactions, 2016 The stress- and displacement-fields developed in a circular ring consisting of a finite number of linearly elastic homo¬geneous and isotropic concentric layers are determined.
Christos F. MARKIDES +2 more
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