In materials science, effective medium approximations (EMA) or effective medium theory (EMT) pertain to analytical or theoretical modeling that describes...

being heterogeneous on a smaller scale. This is known as an effective medium approximation. Various disciplines understand heterogeneity, or being heterogeneous...

frequency. The inclusions can then be evaluated by using an effective medium approximation. PMs display a magnetic response with useful magnitude at optical...

Ireland Escuela Mexicana Americana, a school in Mexico City Effective medium approximations, modeling that describes the macroscopic properties of composite...

Self-Consistent Schemes - Effective medium approximations based on Eshelby's elasticity solution for an inhomogeneity embedded in an infinite medium. Uses the material...

_{n})} denotes the lattice self-energy. The only DMFT approximations (apart from the approximation that can be made in order to solve the Anderson model)...

reduced reflection. To calculate reflection in this case, effective medium approximations can be used. To minimize reflection, various profiles of pyramids...

discussion over whether this is appropriate in metamaterials where effective medium approximations for μ are used, and debate over the reality of "negative permeability"...

messy impedance combinations as the network becomes larger. Effective medium approximations: For a network consisting of a high density of random resistors...

indices of Si and the medium inside the pores. Effective refractive index of PS can be modelled by means of effective medium approximations (EMA). Usually generalised...

{x}}/\epsilon )} . Asymptotic analysis Γ-convergence Mosco convergence Effective medium approximations Sanchez-Palencia, E. (1980). Non-Homogeneous Media and Vibration...

bare Coulomb interaction. This is because the screening of the medium reduces the effective strength of the Coulomb interaction: for example, if one places...

percolation cluster Bootstrap percolation Directed percolation Effective medium approximations Epidemic models on lattices Graph theory Network science Percolation...

\mathrm {NA} =n\sin \theta ,} where n is the index of refraction of the medium in which the lens is working (1.00 for air, 1.33 for pure water, and typically...

system. The Green's function obtained via the CPA then describes an effective medium whose scattering properties represent the averaged scattering properties...

For practical cases the path loss is calculated using a variety of approximations. Statistical methods (also called stochastic or empirical) are based...

theoretically the linewidth of their device by making the reasonable approximations that their ammonia maser is a true continuous-wave (CW) maser, is a...

metals and dielectrics it is made from. Hence, the NIM has become an effective medium. Also, in effect, this metamaterial has become an “ordered macroscopic...

We consider two possible approximations, under which the two quantities are proportional: the Debye–Hückel approximation, valid at high temperatures...

form of electromagnetic radiation. The propagation of radiation through a medium is affected by absorption, emission, and scattering processes. The equation...

conglomerates and laminates) are based upon approximation of an inhomogeneous material by a homogeneous effective medium (valid for excitations with wavelengths...

account exactly because of the high number of particles involved. Various approximations can be made: Free carrier model: In simple models, many-particle interactions...

relations describe the effect of dispersion on the properties of waves in a medium. A dispersion relation relates the wavelength or wavenumber of a wave to...

graphite and lamp black, with emissivities greater than 0.95, are good approximations to a black material. Experimentally, blackbody radiation may be established...

{\displaystyle ~\sigma _{\rm {a}}~} are effective emission and absorption cross-sections. In the case of non-pumped medium, the gain is negative. Round-trip...

nuclei (up to four nucleons) or by employing certain well-controlled approximations for heavier nuclei. Ab initio methods constitute a more fundamental...

inability to capture London dispersion. Relaxation of the last two approximations give rise to many so-called post-Hartree–Fock methods. The variational...

radiative transfer (energy transfer via electromagnetic radiation) through a medium in local thermodynamic equilibrium that both absorbs and emits radiation...

{i}&0\\0&0&0&0&0&e_{i}\\\end{bmatrix}}} The elastic moduli for the effective medium will be C e f f _ _ = [ A A − 2 E B 0 0 0 A − 2 E A B 0 0 0 B B C 0...

travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C...