Results 31 to 40 of about 939,663 (300)

Calculation of the radiance distribution at the boundary of an isotropically scattering slab [PDF]

open access: yes, 1997
The radiance arising from an anisotropically scattering illuminated stack of n slabs is calculated using the equation of radiative transfer. It appears to be unnecessary to calculate the radiance inside the material; including only the radiance at the ...
Rinzema, K.,   +5 more
core   +1 more source

Higher Order Transport of Intensity Equation Methods: Comparisons and Their Hybrid Application for Noise Adaptive Phase Imaging

open access: yesIEEE Photonics Journal, 2019
As a non-interferometric method, the transport of intensity equation (TIE) method suits for quantitative phase imaging with the commercial microscope platform, especially those higher order TIE approaches which can realize precise phase retrieval by ...
Junbao Hu   +8 more
doaj   +1 more source

Phase retrieval in arbitrarily shaped aperture with the transport-of-intensity equation [PDF]

open access: yesSPIE Proceedings, 2015
Phase is not easy to detect directly as intensity, but sometimes it contains the really desired information. The transport-of-intensity equation (TIE) is a powerful tool to retrieve the phase from the intensity. However, by considering the boundary energy exchange and the whole energy conversation in the field of view, the current popular Fast Fourier ...
Lei Huang 0003   +4 more
openaire   +2 more sources

The effect of strong nonlinearity on wave-induced vertical mixing [PDF]

open access: yesEarth System Dynamics, 2023
A semi-analytical solution to an advection–diffusion equation is coupled with a nonlinear wavemaker model to investigate the effect of strong nonlinearity on wave-induced mixing.
M. Paprota, W. Sulisz
doaj   +1 more source

Equivalence between volume averaging and moments matching techniques for mass transport models in porous media. [PDF]

open access: yes, 2010
This paper deals with local non-equilibrium models for mass transport in dual-phase and dual-region porous media. The first contribution of this study is to formally prove that the time-asymptotic moments matching method applied to two-equation models is
Davit, Yohan   +5 more
core   +1 more source

EFFECT OF INTENSE MAGNETIC FIELDS ON THE TRAJECTORY OF ELECTRONSPROPAGATING IN LOW DENSITY MEDIA OF INTEREST FOR MRI-LINAC RADIOTHERAPY

open access: yesAnales (Asociación Física Argentina), 2023
Ionizing radiation transport mechanisms in presence of magnetic fields can be described in terms of formalisms based on the Boltzmann radiation transport equation. However, when the transport occurs not in vacuum but in scattering media the difficulty of
A. Gayol, M. Valente
doaj   +1 more source

3D particle tracking using transport of intensity equation (TIE)

open access: yesOptics Express, 2022
This article presents a simple and high-speed approach for tracking colloidal spheres in three dimensions. The method uses the curvature of the wavefront as determined by the transport of intensity equation (TIE) technique. Due to the fact that the TIE is applicable under partially coherent light, our technique is fully compatible with standard bright ...
Nadim Rezaei   +4 more
openaire   +2 more sources

Optical dispersions through intracellular inhomogeneities

open access: yesPhysical Review Research, 2023
The transport of intensity equation (TIE) exhibits a noninterferometric correlation between the intensity and phase variations of intermediate fields (e.g., light and electrons) in biological imaging. Previous TIE formulations have generally assumed free-
Masaki Watabe   +4 more
doaj   +1 more source

Closed-Form Solution of Radial Transport of Tracers in Porous Media Influenced by Linear Drift

open access: yesEnergies, 2018
A new closed-form analytical solution to the radial transport of tracers in porous media under the influence of linear drift is presented. Specifically, the transport of tracers under convection–diffusion-dominated flow is considered.
Lateef T. Akanji, Gabriel K. Falade
doaj   +1 more source

Continuity equations and ODE flows with non-smooth velocity [PDF]

open access: yes, 2014
In this paper we review many aspects of the well-posedness theory for the Cauchy problem for the continuity and transport equations and for the ordinary differential equation (ODE). In this framework, we deal with velocity fields that are not smooth, but
Crippa, Gianluca, Ambrosio, Luigi
core   +1 more source

Home - About - Disclaimer - Privacy