Results 121 to 130 of about 6,399,268 (313)

How to Chemically Protect PFAS‐Free Membranes in Fuel Cells: Radical Quenching Poly(vinylphosphonic acid) Layer

open access: yesAdvanced Functional Materials, EarlyView.
Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller   +6 more
wiley   +1 more source

Degradation Information⁃Guided Underwater Light Field Image Enhancement and Angular Reconstruction

open access: yesShuju Caiji Yu Chuli
Unlike traditional 2D RGB imaging, 4D light field imaging captures the scene from multiple angular and carries its own geometric information. This feature is expected to solve the problem of underwater imaging. We propose a degradation information-guided
LIU Deyang   +3 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Power-Compensated White Laser Underwater Imaging Applications Based on Transmission Distance

open access: yesOptics
The complex aquatic environment attenuates light transmission, thereby limiting the detection range of underwater laser systems. To address the challenges of limited operational distance and significant light energy attenuation, this study investigates ...
Weiyu Cai   +6 more
doaj   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

Underwater Image Enhancement Method Based on Illumination Compensation and Pyramid-Based Blending

open access: yes水下无人系统学报
The existing enhancement methods based on deep learning and underwater imaging quality degradation models still suffer from poor robustness due to color deviation, scattering-induced blur, and uneven brightness in underwater optical imaging.
Chenghai YUE   +5 more
doaj   +1 more source

Imaging Through Turbid Media With Vague Concentrations Based on Cosine Similarity and Convolutional Neural Network

open access: yesIEEE Photonics Journal, 2019
Underwater imaging has been extensively studied to bypass the limitation aroused by scattering and absorption of water solutions. It is highly meaningful to the development of optical imaging, especially in turbid media.
Lina Zhou, Yin Xiao, Wen Chen
doaj   +1 more source

Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch   +13 more
wiley   +1 more source

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