Results 31 to 40 of about 374,721 (319)
Homogenization of an ensemble of interacting resonant scatterers [PDF]
, 2017 We study theoretically the concept of homogenization in optics using an ensemble of randomly distributed resonant stationary atoms with density $\rho$. The ensemble is dense enough for the usual condition for homogenization, viz.
Browaeys, A. +4 more
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Advances in Mathematics, 2018 A countable band $B$ is called homogeneous if every isomorphism between finitely generated subbands extends to an automorphism of $B$. In this paper we give a complete classification of all the homogeneous bands. We prove that a homogeneous band belongs to the variety of regular bands, and has a homogeneous structure semilattice.
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Homogeneous and Non-homogeneous Algorithms [PDF]
, 2012 This (full) paper was accepted for publication in the 13th Panhellenic Conference on Informatics (PCI 2009), 10-12 September 2009, Corfu, Greece (8 pages)
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Two-dimensional wave propagation in layered periodic media [PDF]
, 2014 We study two-dimensional wave propagation in materials whose properties vary periodically in one direction only. High order homogenization is carried out to derive a dispersive effective medium approximation.
de Luna, Manuel Quezada +1 more
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The homogeneity conjecture [PDF]
Proceedings of the National Academy of Sciences, 1979 We show that, for any function f in which Kleene's O is computable, the ordering of Turning degrees (i.e., degrees of difficulty of computation of functions) is not isomorphic to the ordering of degrees of functions from which f is computable. This refutes a well-known
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SURFAKTAN UNTUK BAHAN BAKAR SOLAR DAN BIODIESEL
Jurnal Teknologi Industri Pertanian, 2021 The government has determined that Indonesia is gradually implementing biodiesel as a substitute for fossil fuels. In September 2018 the B20 rule was established, then B30, and by the end of 2020 it became B50.
Firda Dimawarnita , Erliza Hambali
doaj +1 more source
An introduction to the qualitative and quantitative theory of homogenization
, 2017 We present an introduction to periodic and stochastic homogenization of ellip- tic partial differential equations. The first part is concerned with the qualitative theory, which we present for equations with periodic and random coefficients in a unified ...
Neukamm, Stefan
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Conditions for spontaneous homogenization of the Universe [PDF]
, 2010 The present-day Universe appears to be homogeneous on very large scales. Yet when the casual structure of the early Universe is considered, it becomes apparent that the early Universe must have been highly inhomogeneous.
A. Krasiński +33 more
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Is the Universe homogeneous? [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011 The standard model of cosmology is based on the existence of homogeneous surfaces as the background arena for structure formation. Homogeneity underpins both general relativistic and modified gravity models and is central to the way in which we interpret observations of the cosmic microwave background (CMB) and the galaxy distribution.
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Mean Field Limits for Interacting Diffusions in a Two-Scale Potential [PDF]
, 2017 In this paper we study the combined mean field and homogenization limits for a system of weakly interacting diffusions moving in a two-scale, locally periodic confining potential, of the form considered in~\cite{DuncanPavliotis2016}.
Gomes, S. N., Pavliotis, G. A.
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