منابع مشابه
On the Energy-Momentum Density of Gravitational Plane Waves
By embedding Einstein’s original formulation of GR into a broader context we show that a dynamic covariant description of gravitational stress-energy emerges naturally from a variational principle. A tensor TG is constructed from a contraction of the Bel tensor with a symmetric covariant second degree tensor field Φ and has a form analogous to the stress-energy tensor of the Maxwell field in an...
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The present investigation analysis a problem of reflection and transmission at an interface of two micropolar orthotropic piezothermoelastic media. The basic equations and constitutive relations for micropolar orthotropic piezothermoelastic media for G-L theory are derived. The expressions for amplitude ratios corresponding to reflected and transmitted waves are derived analytically. The eff...
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Dispersion-managed optical transmission lines, with dispersion periodically switched between the normal and anomalous regimes, offer significantly better performance than transmission lines with constant dispersion by reducing the dispersion penalty and spectral broadening owing to self-phase modulation. We analyze the evolution of plane waves in a dispersion-managed transmission line, using Fl...
متن کاملZero-Sum Ascending Waves
A sequence of positive integers a1 ≤ a2 ≤ . . . ≤ an is called an ascending monotone wave of length n, if ai+1−ai ≥ ai−ai−1 for i = 2, . . . , n−1. If ai+1−ai > ai−ai−1 for all i = 2, . . . , n−1 the sequence is called an ascending strong monotone wave of length n. Let Zk denote the cyclic group of order k. If k | n, then we define MW (n,Zk) as the least integer m such that for any coloring f :...
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A general model of the equations of generalized thermoelasticity for an infinite space weakened by a finite linear opening Mode-I crack is solving. The material is homogeneous and has isotropic properties of elastic half space. The crack is subjected to prescribed temperature and stress distribution. The formulation is applied to generalized thermoelasticity theories, the Lord-Şhulman...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2011
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-011-1143-4