نتایج جستجو برای: continuum mode

تعداد نتایج: 266366  

Journal: :Physical review 2021

The electric structure of twisted bilayer GeSe, which shows a rectangular moir\'{e} pattern, is analyzed using $\bm{k}\cdot\bm{p}$ type effective continuum model. model constructed on the basis local approximation method, where lattice system approximated by its untwisted with parallel displacement, and required parameters are fixed help first-principles method. By inspecting twist angle depend...

Journal: :journal of medical signals and sensors 0
sajjad sadeghi hamid behnam jahan tavakkoli

ultrasoundelastographyisanon-invasivemethodwhichimagestheelasticityofsoft-tissues. tomakeanimage, preandafterasmallcompression, ultrasoundradio frequency(rf)signalsareacquiredandthetimedelaysbetweenthemareestimated. thefirstdifferentiationofdisplacementestimationsiscalledelastogram. inthisstudy, wearegoingtomakeanelastogramusingtheprocessingmethodnamed empirical mode decomposition (emd). emdisa...

Journal: :Combinatorics, Probability & Computing 2009
Béla Bollobás Svante Janson Oliver Riordan

Given ω ≥ 1, let Z2(ω) be the graph with vertex set Z 2 in which two vertices are joined if they agree in one coordinate and differ by at most ω in the other. (Thus Z2(1) is precisely Z .) Let pc(ω) be the critical probability for site percolation in Z2(ω). Extending recent results of Frieze, Kleinberg, Ravi and Debany, we show that limω→∞ ωpc(ω) = log(3/2). We also prove analogues of this resu...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Trung Dac Nguyen Miguel Fuentes-Cabrera Jason D Fowlkes Javier A Diez Alejandro G González Lou Kondic Philip D Rack

We consider nanometer-sized fluid annuli (rings) deposited on a solid substrate and ask whether these rings break up into droplets due to the instability of Rayleigh-Plateau-type modified by the presence of the substrate, or collapse to a central drop due to the presence of azimuthal curvature. The analysis is carried out by a combination of atomistic molecular dynamics simulations and a contin...

Journal: :Computer Standards & Interfaces 2007
Andrey Naumenko Alain Wegmann

The subject of research in this paper is RM-ODP, an ISO/ITU-T international standard. We investigate an important challenge that the standard faces, specifically the absence of a satisfactory formalization of its proposed conceptual framework. We report on the definition and implementation of a concrete resolution for this challenge: a single consistent formalization of the RM-ODP conceptual fr...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
R Bachelard T Dauxois G De Ninno S Ruffo F Staniscia

We show that, in the continuum limit, the dynamics of Hamiltonian systems defined on a lattice with long-range couplings is well described by the Vlasov equation. This equation can be linearized around the homogeneous state, and a dispersion relation, which depends explicitly on the Fourier modes of the lattice, can be derived. This allows one to compute the stability thresholds of the homogene...

Journal: :New Journal of Physics 2021

Abstract In this paper, we present a novel universal coupled theory for metamaterial bound states in the continuum (BIC) or quasi-bound (quasi-BIC) which provides ultra-high Q resonance devices. Our analytically calculates coupling of two bright modes with phase information. method has much more accuracy ultra-strong comparing previous theories (the one mode and dark bright-mode coupling). Ther...

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