Results 161 to 170 of about 1,689,718 (367)

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

open access: yesAdvanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

An Effective Method of Suppressing the Speckle-noise Using a Cell with the Helix-free Ferroelectric LC

open access: diamond, 2017
A. L. Andreev   +3 more
openalex   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

A ghost imaging framework based on laser mode speckle pattern for underwater environments

open access: yesCommunications Engineering
Due to the complex physical processes found in underwater environments, such as absorption, scattering, and noise, it is challenging to obtain high-quality images using conventional camera-based imaging techniques.
Mo-Chou Yang   +3 more
doaj   +1 more source

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

open access: yesAdvanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash   +4 more
wiley   +1 more source

From Noise to Signal: Multi-layer Speckle Correlation with Applications in Visible Light Communication

open access: green, 2022
Alfredo Rates   +4 more
openalex   +2 more sources

3D Microprinting of Structures with Lanthanide‐Based Fluorophores on Optical Fibers for Multiplexed Sensing

open access: yesAdvanced Optical Materials, EarlyView.
Incorporating lanthanide‐based fluorophores into commercial resists for femtosecond direct laser writing enables a novel platform for multiplexed sensing. Porous, periodic, and solid luminescent microstructures fabricated directly on optical fiber tips are presented.
Valese Aslani   +8 more
wiley   +1 more source

SAR-ASGOUT: Adversarial Speckle Generation and Offline Unpaired Training for Unsupervised SAR Despeckling

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The presence of inherent speckle noise poses considerable challenges to the intelligent application of synthetic aperture radar (SAR) images. Existing deep learning-based despeckling methods have evolved into two primary categories: supervised and ...
Xu Wang   +4 more
doaj   +1 more source

Assessing digital micromirror devices for speckle noise control in digital holography

open access: bronze, 2017
J. Gaviria-Mesa   +4 more
openalex   +1 more source

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