نتایج جستجو برای: discrete dipole approximation

تعداد نتایج: 365863  

2004
Sung Yong Park

We calculate the effective dielectric function for a suspension of small metallic particles immersed in a nematic liquid crystal (NLC) host. For a random suspension of such particles in the dilute limit, we calculate the effective dielectric tensor exactly and show that the surface plasmon (SP)resonance of such particles splits into two resonances, polarized parallel and perpendicular to the NL...

Journal: :Combustion and Flame 2022

The soot volume fraction, fv, measured by Santoro and coworkers in an ethylene diffusion flame light extinction has become a standard for validation of models formation growth. This however, been obtained assuming spheres constant refractive index. As result, when compared to that microscopy thermocouple particle densitometry (TPD) at identical conditions it is almost twice as much! apparent di...

Journal: :IEEE Open Journal of Antennas and Propagation 2023

We propose and numerically validate a patch reflectarray modeling approach suitable for small patches that describes each as pair of polarizable magnetic dipoles. introduce an extraction technique to obtain the effective polarizability dipoles via full-wave simulations on individual patches, followed by beamforming design routine valid under weakly scattering configurations. This dipole framewo...

Journal: :Physical review 2023

In this paper we propose recurrence relations for the dipole densities in QCD, which allows us to find these from solution BFKL equation. We resolve diffusion approximation kernel. Based on solution, found sum of large Pomeron loops. This generates scattering amplitude that decreases at values rapidity $Y$. It turns out such behaviour amplitudes is an artifact approximation. leads unitarization...

Journal: :Journal of Approximation Theory 1993

Journal: :Computers & Mathematics with Applications 1999

Journal: :Journal of Computational and Applied Mathematics 1982

 Spatial generalized linear mixed models are used commonly for modelling non-Gaussian discrete spatial responses. We present an algorithm for parameter estimation of the models using Laplace approximation of likelihood function. In these models, the spatial correlation structure of data is carried out by random effects or latent variables. In most spatial analysis, it is assumed that rando...

Journal: :Proceedings of the American Mathematical Society 2006

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