Articles with "radiative transfer" as a keyword



Greatly Enhanced Radiative Transfer Enabled by Hyperbolic Phonon Polaritons in α‐MoO3

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202403719

Abstract: Orthorhombic molybdenum trioxide (α‐MoO3) is a highly anisotropic hyperbolic material in nature. Within its wide Reststrahlen bands, α‐MoO3 has hyperboloidal dispersion that supports bulk propagation of high‐k phonon polariton modes. These modes can serve as… read more here.

Keywords: radiative transfer; phonon polaritons; polaritons moo3; hyperbolic phonon ... See more keywords

Unravelling the performance of atmospheric radiative transfer schemes in the simulation of mean surface climate in Central Africa using the RegCM5 climate model

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Published in 2024 at "International Journal of Climatology"

DOI: 10.1002/joc.8611

Abstract: The theory of radiative transfer in the atmosphere is crucial in the study of climate, because radiative exchanges are at the origin of the atmospheric dynamics. It is therefore important to evaluate this phenomenon in… read more here.

Keywords: radiative transfer; scheme; transfer; climate model ... See more keywords

Updates of HITRAN spectroscopic database from 2008 to 2016 and implications for near‐infrared radiative transfer calculations

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Published in 2019 at "Quarterly Journal of the Royal Meteorological Society"

DOI: 10.1002/qj.3498

Abstract: Spectroscopic information on atmospheric gases, such as absorption line positions, intensities and widths, is important for radiative transfer calculations in climate and weather models. The widely used HIgh resolution TRANsmission (HITRAN) spectroscopic database is updated… read more here.

Keywords: heating rates; radiative transfer; line; near infrared ... See more keywords
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Radiative transfer in scattering stochastic atmospheres

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Published in 2017 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-017-3211-z

Abstract: Many stars, active galactic nuclei, accretion discs etc. are affected by the stochastic variations of temperature, turbulent gas motions, magnetic fields, number densities of atoms and dust grains. These stochastic variations influence on the extinction… read more here.

Keywords: scattering stochastic; transfer; radiative transfer; stochastic atmospheres ... See more keywords

Macroscopic Auxiliary Asymptotic Preserving Neural Networks for the Linear Radiative Transfer Equations

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Published in 2024 at "Journal of Scientific Computing"

DOI: 10.1007/s10915-025-02891-4

Abstract: We develop a Macroscopic Auxiliary Asymptotic-Preserving Neural Network (MA-APNN) method to solve the time-dependent linear radiative transfer equations (LRTEs), which possess such features as multi-scale properties and high dimensionality. Utilizing the Physics-Informed Neural Networks (PINNs),… read more here.

Keywords: radiative transfer; linear radiative; asymptotic preserving; macroscopic auxiliary ... See more keywords

Radiative Transfer, Non-transparency, Stability Against Quench in Superconductors and Their Correlations

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Published in 2019 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-018-4833-2

Abstract: Radiative transfer calculations are presented for multi-filamentary BSCCO 2212 and 2223 and for thin film-coated YBaCuO 123 superconductors. A strictly radiative view allows conductor morphology of these superconductors to be interpreted as particulate or quasi-particulate… read more here.

Keywords: non transparency; transfer non; stability; transparency ... See more keywords

Asymptotic Behavior of a Solution to the Radiative Transfer Equation in a Multilayered Medium with Diffuse Reflection and Refraction Conditions

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Published in 2019 at "Journal of Mathematical Sciences"

DOI: 10.1007/s10958-019-04633-y

Abstract: We consider the radiative transfer problem in a multilayered semitransparent medium composed of m plane vertical layers of optic thickness e = τ∗/m. It is assumed that the interfaces separating the layers as well as… read more here.

Keywords: asymptotic behavior; diffuse; medium; behavior solution ... See more keywords

Operator-splitting finite element method for solving the radiative transfer equation

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Published in 2024 at "Numerical Algorithms"

DOI: 10.1007/s11075-024-01850-8

Abstract: An operator-splitting finite element scheme for the time-dependent radiative transfer equation is presented in this paper. The streamline upwind Petrov-Galerkin finite element method and discontinuous Galerkin finite element method are used for the spatial-angular discretization… read more here.

Keywords: radiative transfer; finite element; transfer equation; operator splitting ... See more keywords

Jacobian matrix for near-infrared remote sensing based on vector radiative transfer model

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Published in 2020 at "Science China Earth Sciences"

DOI: 10.1007/s11430-019-9586-7

Abstract: Due to the polarization effects of the Earth’s surface reflection and atmospheric particles’ scattering, high-precision retrieval of atmospheric parameters from near-infrared satellite data requires accurate vector atmospheric radiative transfer simulations. This paper presents a near-infrared… read more here.

Keywords: transfer model; jacobian matrix; near infrared; transfer ... See more keywords

Monte Carlo simulation of radiative transfer in a medium with varying refractive index specified at discrete points

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Published in 2017 at "Applied Mathematical Modelling"

DOI: 10.1016/j.apm.2017.02.049

Abstract: Abstract A Monte Carlo method with discrete ray tracing is developed to simulate radiative transfer in a medium with a spatially varying refractive-index distribution available merely at a set of arbitrary discrete points. We solve… read more here.

Keywords: discrete points; refractive index; medium; radiative transfer ... See more keywords

Radiative transfer modeling of the observed line profiles in G31.41+0.31

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Published in 2021 at "Advances in Space Research"

DOI: 10.1016/j.asr.2021.07.011

Abstract: An inverse P-Cygni profile of H13CO+ (1 → 0) in G31.41+0.31 was recently observed, which indicates the presence of an infalling gas envelope. Also, an outflow tracer, SiO, was observed. Here, exclusive radiative transfer modelings… read more here.

Keywords: line; observed line; gas; line profiles ... See more keywords