Results 21 to 30 of about 31,396 (258)

Radiative transfer of ultrasound [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1993
A radiative transfer equation is used to model the diffuse multiple scattering of ultrasound in a medium containing discrete random scatterers. An assumption of uncorrelated phases allows one to write an equation of energy balance for the diffuse intensity.
Turner, Joseph A., Weaver, Richard L.
openaire   +1 more source

FDTD Simulation of Near-Field Radiative Heat Transfer between Thin Films Supporting Surface Phonon Polaritons: Lessons Learned

open access: yesJournal of Thermal Science and Technology, 2013
We present the numerical simulation, using the finite difference time domain (FDTD) method, of the radiative heat transfer between two thin SiC slabs. We aim to explore the ability of the FDTD method to reproduce the analytical results for the Surface ...
Alejandro DATAS   +2 more
doaj   +1 more source

CO Mapping of Cygnus-X—Volume Density Distribution

open access: yesThe Astrophysical Journal, 2023
We present CO(2-1) and ^13 CO(2-1) maps of the Cygnus-X molecular cloud complex using the 10 m Heinrich Hertz Submillimeter Telescope. The maps cover the southern portion of the complex, which is strongly impacted by the feedback from the Cygnus OB2 ...
Jonah C. Baade   +3 more
doaj   +1 more source

General relativistic radiative transfer [PDF]

open access: yesAstronomy & Astrophysics, 2006
We present a general method to calculate radiative transfer including scattering in the continuum as well as in lines in spherically symmetric systems that are influenced by the effects of general relativity (GR). We utilize a comoving wavelength ansatz that allows to resolve spectral lines throughout the atmosphere.
Knop, S., Hauschildt, P. H., Baron, E.
openaire   +2 more sources

Modeling photosynthesis of discontinuous plant canopies by linking the Geometric Optical Radiative Transfer model with biochemical processes [PDF]

open access: yesBiogeosciences, 2015
Modeling vegetation photosynthesis is essential for understanding carbon exchanges between terrestrial ecosystems and the atmosphere. The radiative transfer process within plant canopies is one of the key drivers that regulate canopy photosynthesis ...
Q. Xin, P. Gong, P. Gong, P. Gong, W. Li
doaj   +1 more source

Monte Carlo radiative transfer [PDF]

open access: yesLiving Reviews in Computational Astrophysics, 2019
The theory and numerical modelling of radiation processes and radiative transfer play a key role in astrophysics: they provide the link between the physical properties of an object and the radiation it emits. In the modern era of increasingly high-quality observational data and sophisticated physical theories, development and exploitation of a variety ...
Ulrich M. Noebauer, Stuart A. Sim
openaire   +4 more sources

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Radiation-hydrodynamics Effects in an Inhomogeneous Medium

open access: yesThe Astrophysical Journal
Radiation flow through an inhomogeneous medium is critical in a wide range of physics and astronomy applications, from transport across cloud layers on the Earth to the propagation of supernova blast waves producing ultraviolet and X-ray emission ...
Christopher L. Fryer   +11 more
doaj   +1 more source

PORT, a CESM tool for the diagnosis of radiative forcing [PDF]

open access: yesGeoscientific Model Development, 2013
The Parallel Offline Radiative Transfer (PORT) model is a stand-alone tool, driven by model-generated datasets, that can be used for any radiation calculation that the underlying radiative transfer schemes can perform, such as diagnosing radiative ...
A. J. Conley   +4 more
doaj   +1 more source

Ray Effects and False Scattering in Improved Discrete Ordinates Method

open access: yesEnergies, 2021
The improved discrete ordinates method (IDOM) developed in our previous paper is extended to solve radiative transfer in three-dimensional radiative systems with anisotropic scattering medium.
Yong Cheng, Shuihua Yang, Zhifeng Huang
doaj   +1 more source

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