Results 81 to 90 of about 29,250 (249)

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Diffuse and specular brightness models applied to LEO satellites

Astronomy & Astrophysics
Context. To better understand the observed brightness of low Earth orbit satellites, we must characterize their reflectivity, which in turn depends importantly on their bus designs.
Romero-Colmenares María, Vieira Katherine, Tregloan-Reed Jeremy, Kim Yonggi, Yoon Joh-Na, Kim Ha-eun, Jeon Hyo-ri, Kim Chae-rin, Adam Christian, Hinse Tobías C., Soto Mario, Unda-Sanzana Eduardo, Longa-Peña Penélope, Otarola Ángel   +13 more
doaj   +1 more source

Time course and magnitude of the calcium release induced by bright light in salamander rods

The Journal of Physiology, 2002
Changes in fluorescence were measured with an argon ion laser from the outer segments of isolated salamander rods containing the Ca2+‐sensitive fluorescent dye fluo‐5F. When the outer segments were exposed to a 0Ca2+/0Na+ solution designed to minimise surface membrane Ca2+ fluxes, exposure to intense light from the laser evoked a slow increase in ...
Hugh R, Matthews, Gordon L, Fain
openaire   +3 more sources

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Multisensor Characterization of Urban Morphology and Network Structure

Remote Sensing, 2019
The combination of decameter resolution Sentinel 2 and hectometer resolution VIIRS offers the potential to quantify urban morphology at scales spanning the range from individual objects to global scale settlement networks.
Christopher Small
doaj   +1 more source

The hierarchical growth of bright central galaxies and intracluster light as traced by the magnitude gap [PDF]

Monthly Notices of the Royal Astronomical Society
ABSTRACT Using a sample of 2800 galaxy clusters identified in the Dark Energy Survey across the redshift range $0.20 \lt z \lt 0.60$, we characterize the hierarchical assembly of bright central galaxies (BCGs) and the surrounding intracluster light (ICL).
Jesse B Golden-Marx, Y Zhang, R L C Ogando, B Yanny, M E da Silva Pereira, M Hilton, M Aguena, S Allam, F Andrade-Oliveira, D Bacon, D Brooks, A Carnero Rosell, J Carretero, T -Y Cheng, L N da Costa, J De Vicente, S Desai, P Doel, S Everett, I Ferrero, J Frieman, J García-Bellido, M Gatti, G Giannini, D Gruen, R A Gruendl, G Gutierrez, S R Hinton, D L Hollowood, K Honscheid, D J James, K Kuehn, S Lee, J Mena-Fernández, F Menanteau, R Miquel, J Mohr, A Palmese, A Pieres, A A Plazas Malagón, S Samuroff, E Sanchez, M Schubnell, I Sevilla-Noarbe, M Smith, E Suchyta, G Tarle, V Vikram, A R Walker, N Weaverdyck, P Wiseman   +50 more
openaire   +3 more sources

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Troxler Fading, Eye Movements, and Retinal Ganglion Cell Properties

i-Perception, 2014
We present four movies demonstrating the effect of flicker and blur on the magnitude and speed of adaptation for foveal and peripheral vision along the three color axes that isolate retinal ganglion cells projecting to magno, parvo, and konio layers of ...
Romain Bachy, Qasim Zaidi
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

MULTISCALE DIFFERENTIAL METHOD FOR DIGITAL IMAGE SHARPENING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2014
We have proposed and tested a novel method for digital image sharpening. The method is based on multi-scale image analysis, calculation of differential responses of image brightness in different spatial scales, and the subsequent calculation of a ...
Vitaly V. Bezzubik , Nickolai R. Belashenkov , Gleb V. Vdovin, Nikolai S. Karmanovsky , Oleg A. Soloviev   +4 more
doaj