Results 81 to 90 of about 428,042 (307)

Frequency-Reconfigurable Dipole Antenna Using Liquid-Metal Pixels

open access: yesInternational Journal of Antennas and Propagation, 2018
A frequency-tunable half-wavelength dipole antenna is realized using an array of electrically actuated liquid-metal pixels. The liquid-metal pixelated dipole antenna demonstrates frequency reconfigurability by switching between resonances at 2.51 GHz, 2 ...
Kent J. Sarabia   +5 more
doaj   +1 more source

Secret Image Sharing Based on Encrypted Pixels

open access: yesIEEE Access, 2018
The well-known Thien and Lin's (k, n) secret image sharing (SIS) scheme and its extended versions are threshold schemes, in which a secret image is shared among n shadow images and it can be recovered from any k shadow images.
Zhili Zhou   +3 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

ENTRE PASSOS E PIXELS

open access: yesRevista da Fundarte
As danças representam um patrimônio imaterial que traduz a história e a identidade de um povo. Na contemporaneidade, as tecnologias digitais surgem como ferramentas estratégicas para sua preservação, permitindo que o ensino e a difusão cultural ...
Denise Prado Costa, Rodrigo Lemos Soares
doaj   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

Truelles et pixels

open access: yes, 2015
Truelles & Pixels est une collection de contenus ludiques, collaboratifs et de découverte transmédias sur l’archéologie. Jeu, médiation muséographique et co-construction de savoirs : des formes éditoriales différentes répondent aux différents degrés d ...
Jean Pierre Girard
core  

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Fusion of Weighted Mean Reconstruction and SVMCK for Hyperspectral Image Classification

open access: yesIEEE Access, 2018
Conventional classifiers treat hyperspectral image (HSI) as a list of spectral measurements without considering the spatial relationship between pixels. Therefore, these methods discard the information associated with spatial correlations among distinct ...
Hong Huang   +3 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Aline adora os animais e os animais adoram Aline

open access: yes, 2011
Componente Curricular::Ensino Fundamental::Séries Iniciais::Língua PortuguesaHistória em quadrinhos curta, do tipo tirinha, que tem como enredo cômico a situação vivida por Aline, uma garotinha que adora os animais e é adorada por elesRecomenda-se que o ...
Helme, Mauri, Pixels
core   +1 more source

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