Results 61 to 70 of about 17,549 (309)

An angular reduced order model for radiative transfer in non grey media [PDF]

, 2019
This paper investigates a reduced order model for the angular discretisation of the radiative transfer equation (RTE) when considering non grey participating gases.
BUCHAN, AG
core  

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Multigroup Radiation Diffusion on a Moving Mesh: Implementation in RICH and Application to Tidal Disruption Events

The Astrophysical Journal Supplement Series
Radiation hydrodynamics (RHD) determines the bulk evolution and observable emission in a wide variety of high-energy astrophysical phenomena. Due to their complexity, RHD problems must usually be studied through numerical simulations.
Itamar Giron, Menahem Krief, Nicholas C. Stone, Elad Steinberg   +3 more
doaj   +1 more source

Application of multidimensional scheme and the discrete ordinate method to radiative heat transfer in a two-dimensional enclosure with diffusely emitting and reflecting boundary walls

, 2015
Radiative heat transfer is the dominant mode of heat transfer in many engineering problems, including combustion chambers, space, greenhouses, rocket plume sensing, among others.
Ismail, KAR, Salinas, CS
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Radiative transfer equation for media with spatially varying refractive index

, 2014
The radiative transfer equation is fundamental to multiple physical applications based on light propagation. There have been three different formulations of the radiative transfer equation for media with spatially varying refractive index.
Arridge, Simon R., Wang, Pei, Jiang, Ming   +2 more
core   +1 more source

Utilising the radiative transfer equation in quantitative photoacoustic tomography [PDF]

, 2017
Quantitative photoacoustic tomography is an emerging imaging technique aimed at estimating optical parameters inside tissue from photoacoustic images. This optical parameter estimation problem is an ill-posed inverse problem, and thus it is sensitive to ...
Simon R. Arridge, Cox, BT, Tarvainen, T, Pulkkinen, A, Tanja Tarvainen, Arridge, SR, Aki Pulkkinen, Ben T. Cox   +7 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Irradiated Atmospheres. I. Heating by Vertical-mixing-induced Energy Transport

The Astrophysical Journal
Observations have revealed unique temperature profiles in hot Jupiter atmospheres. We propose that the energy transport by vertical mixing could lead to such thermal features. In our new scenario, strong absorbers, TiO, and VO are not necessary. Vertical
Wei Zhong, Zhen-Tai Zhang, Hui-Sheng Zhong, Bo Ma, Xianyu Tan, Cong Yu   +5 more
doaj   +1 more source

Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation

Frontiers in Physics
The radiative transfer equation (RTE) plays a fundamental role in modeling photon transport in various media such as biological tissues and atmospheric systems, where scattering phenomena are critical. In this study, the RTE is solved using two spherical
Halide Koklu
doaj   +1 more source