Results 41 to 50 of about 7,311 (258)

Flat band degeneracy and near-zero refractive index materials in acoustic crystals

open access: yesAIP Advances, 2016
A Dirac-like cone is formed by utilizing the flat bands associated with localized modes in an acoustic crystal (AC) composed of a square array of core-shell-structure cylinders in a water host.
Shiqiao Wu, Jun Mei
doaj   +1 more source

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Rip Currents Characteristic on Mild-slope Barred Beach with Rip Channel

open access: yes工程科学与技术, 2015
:To study the characteristics of rip current by intersecting wave on mild slope barred beach with rip channel,the experiment of rip currents by intersecting random wave on the mild-slope barred beach with rip channel was done.Rip currents resulted from ...
王彦, 邹志利
doaj  

Near-infrared Spectrum Characteristics of Micro-Nano Material Based Diffraction Optical Devices

open access: yesMedžiagotyra
Diffractive optics devices are optical devices in which the amplitude or phase of the incident light is spatially modulated periodically by a micro-nanomaterial based structure.
Zhao JIN   +8 more
doaj   +1 more source

Track-Before-Detect Procedures in AM Radio-Based Passive Radar

open access: yesInternational Journal of Antennas and Propagation, 2021
In amplitude modulation radio-based passive radar, the track-before-detect (TBD) procedures are performed to process long time observation data. This work mainly focuses on the tracking of the time-Doppler and time-azimuth traces of multiple target under
Yang Li, Hong Ma, Yuntao Wu, Li Cheng
doaj   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

Impact of Disorder on Microscopic Superconducting and Normal‐State Responses in a Kagome Metal

open access: yesAdvanced Functional Materials, EarlyView.
Using depth‐resolved, field‐ and pressure‐dependent μSR$\umu{\rm SR}$ measurements, we show that disorder in Ta‐doped KV3Sb5 drives a crossover from nodal to nodeless superconductivity while strongly modifying the normal‐state magnetic response. Our results reveal that disorder affects superconductivity and magnetism in fundamentally different ways ...
J. N. Graham   +18 more
wiley   +1 more source

Direction‐finding measurements of Jovian low‐frequency radio components by Juno near Perijove 1

open access: yesGeophysical Research Letters, 2017
With the aid of the radio and plasma wave (Waves) instrument on board the Juno spacecraft, the first scientific close encounter to Jupiter (Perijove 1) of Juno led to an opportunity to perform direction‐finding measurements of the intense Jovian ...
Masafumi Imai   +5 more
doaj   +1 more source

New zeolite-like RUB-5 and its related hydrous layer silicate RUB-6 structurally characterized by electron microscopy

open access: yesIUCrJ, 2020
This study made use of a recently developed combination of advanced methods to reveal the atomic structure of a disordered nanocrystalline zeolite using exit wave reconstruction, automated diffraction tomography, disorder modelling and diffraction ...
Yaşar Krysiak   +6 more
doaj   +1 more source

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