Results 11 to 20 of about 173,157 (195)

Diffusion in lattices with anisotropic scatterers [PDF]

open access: yesJournal of Statistical Physics, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roerdink, J.B.T.M.   +2 more
openaire   +2 more sources

Estimation and Removing of Anisotropic Scattering for Multiaspect Polarimetric SAR Image

open access: yesLeida xuebao, 2015
Multiaspect Synthetic Aperture Radar (SAR) can generate high resolution images and target scattering signatures in different azimuth angles from the coherent integration of all subaperture images. However, mixed anisotropic scatters limit the application
Li Yang   +5 more
doaj   +1 more source

Extraction of Anisotropic Characteristics of Scattering Centers and Feature Enhancement in Wide-Angle SAR Imagery Based on the Iterative Re-Weighted Tikhonov Regularization

open access: yesRemote Sensing, 2018
The anisotropic characteristic reflects discriminating features of the geometry of a scattering center. In this study, we propose a novel method based on the iterative re-weighted Tikhonov regularization (IRWTR) to achieve the extraction of anisotropic ...
Yuexin Gao   +3 more
doaj   +1 more source

Anisotropic scattering in radio-echo sounding: insights from northeast Greenland [PDF]

open access: yesThe Cryosphere
Anisotropic scattering and birefringence-induced power extinction are two distinct mechanisms affecting the azimuthal power response in radio-echo sounding (RES) of ice sheets.
T. A. Gerber   +9 more
doaj   +1 more source

On the spectrum of discrete-ordinates neutron transport problems

open access: yesBrazilian Journal of Radiation Sciences, 2021
Over the last six decades, the discrete spectrum of the neutron transport operator has been widely studied. Important theoretical results can be found in the literature regarding the one-speed linear transport equation with anisotropic scattering.
Jesús Pérez Curbelo
doaj   +1 more source

A Novel Method for Building Contour Extraction Based on CSAR Images

open access: yesRemote Sensing, 2023
Circular synthetic aperture radar (CSAR) can obtain more complete scattering characteristics by observing the target with different azimuth angles. Therefore, extracting the complete structure of the target from CSAR images is of great significance for ...
Jia Zhao, Daoxiang An, Leping Chen
doaj   +1 more source

The anisotropic approximations of the Henyey-Greenstein phase function for neutron transport equation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2014
The effect of anisotropic scattering on the eigenvalues of a multiplying (c >1) and non-multi-plying (c < 1) slab in one-speed neutron transport equation is studied.
Kacira Kadir, Bilgic Huseyin, Yasa Faruk
doaj   +1 more source

Discrete unified gas kinetic scheme for multiscale anisotropic radiative heat transfer

open access: yesAdvances in Aerodynamics, 2020
In this work, a discrete unified gas kinetic scheme (DUGKS) is developed for radiative transfer in anisotropic scattering media. The method is an extension of a previous one for isotropic radiation problems [1].
Xinliang Song   +3 more
doaj   +1 more source

Parallel optimization approaches for scattering source term and angle merging in MOC high-order anisotropic computation on GPUs [PDF]

open access: yesEPJ Web of Conferences
The introduction of high-order anisotropic scattering and thousand-group calculations significantly increases the computational workload of the MOC method, posing difficulties for practical parallel computation on GPUs.
Li Jiacheng   +3 more
doaj   +1 more source

Anisotropic diffusion in Cyphochilus white beetle scales

open access: yesAPL Photonics, 2020
Cyphochilus white beetles possess an exceptional ability to scatter visible light from their scales, which have anisotropic nanofibrillar network structures.
Seung Ho Lee, Sang M. Han, Sang Eon Han
doaj   +1 more source

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