Results 41 to 50 of about 2,411,897 (179)

Multiplexed spatially-focused localization of light in adipose biological tissues

Scientific Reports, 2022
Last decades the effects of localization and focusing of light in turbid randomly inhomogeneous tissue-like scattering medium have been attracting a particular attention.
Alexander Bykov, Valery Tuchin, Igor Meglinski   +2 more
doaj   +1 more source

Light Recycling Using Perovskite Solar Cells in a Half‐Cylinder Photonic Plate for an Energy Efficient Broadband Polarized Light Emission

Advanced Photonics Research, 2021
Energy efficiency in many illumination devices is far from optimal. For instance, in liquid crystal displays, a large fraction of the emitted light is lost provided absorbing polarizers are used for the image formation.
Catarina G. Ferreira, Guillermo Martínez-Denegri, Mariia Kramarenko, Johann Toudert, Jordi Martorell   +4 more
doaj   +1 more source

Polarization properties and Umov effect of human hair

Scientific Reports
This study delves into the polarization properties of various hair colors using several techniques, including polarization ray tracing, full Stokes, and Mueller matrix imaging. Our analysis involved studying hair in both indoor and outdoor settings under
Alaa Hamdoh, Sawyer Miller, Yufei Gao, Yang Zou, Matthew Smith, Linan Jiang, Stanley Pau   +6 more
doaj   +1 more source

A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths [PDF]

, 2006
Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid ...
Nix, AR, Ng, KH, A.R. Nix, Tameh, EK, E.K. Tameh, K.H. Ng   +5 more
core   +2 more sources

Exclusive Seismoacoustic Detection and Characterization of an Unseen and Unheard Fireball Over the North Atlantic

Geophysical Research Letters, 2023
Small meteoroids that enter Earth's atmosphere often go unnoticed because their detection and characterization rely on human observations, introducing observational biases in space and time.
Stephen P. Hicks, Sandro B. Matos, Adriano Pimentel, Giacomo Belli, Duccio Gheri, Maria Tsekhmistrenko, Kasra Hosseini, Wolfram H. Geissler, Rita Silva, Nicolau Wallenstein, Ana M. G. Ferreira   +10 more
doaj   +1 more source

Polarimetric Signatures of Bulk Comptonization from within the Plunging Region of Accreting Black Holes

The Astrophysical Journal
Inverse Compton scattering by the thermal motions of electrons is believed to produce polarized hard X-rays in active galactic nuclei and black hole binaries.
Ho-Sang Chan, Mitchell C. Begelman, Jason Dexter   +2 more
doaj   +1 more source

Accuracy of depolarization and delay spread predictions using advanced ray-based modeling in indoor scenarios

EURASIP Journal on Wireless Communications and Networking, 2011
This article investigates the prediction accuracy of an advanced deterministic propagation model in terms of channel depolarization and frequency selectivity for indoor wireless propagation.
Mani Francesco, Quitin François, Oestges Claude   +2 more
doaj  

The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline

Journal of Synchrotron Radiation
A grazing-incidence Rowland spectrometer with a collimating element for resonant inelastic soft X-ray scattering at the Veritas beamline at MAX IV, Lund, Sweden, is presented.
Marcus Agåker, Carl-Johan Englund, Victor Ekholm, Ludvig Kjellsson, Peter Sjöblom, Louisa Pickworth, Johan Söderström, Niklas Johansson, Anirudha Ghosh, Takashi Tokushima, Marco Caputo, Johan Forsberg, Gábor Felcsuti, Pierre Fredriksson, Suleyman Malki, Nial Wassdahl, Conny Såthe, Jan-Erik Rubensson   +17 more
doaj   +1 more source

A Monte Carlo Emissivity Model for Wind-Roughened Sea Surface

Sensors, 2019
Sea surface emissivity (SSE) is a key variable in the estimation of sea surface temperature and the sea surface radiation budget. A physical base SSE model with adequate accuracy and acceptable computational efficiency is highly desired.
Jie Cheng, Xiaolong Cheng, Xiangchen Meng, Guanhua Zhou   +3 more
doaj   +1 more source

Interactive SIMD ray tracing for large deformable tetrahedral meshes

, 2022
S.147-154We introduce an interactive ray tracing method for large deformable tetrahedral meshes which has carefully been designed for supporting general single instruction multiple data (SIMD) operations.
Pfreundt, F.-J., Groß, M., Hagen, H.
core   +1 more source