Results 191 to 200 of about 525,859 (396)

A Universal Toughening and Energy‐Dissipating Strategy for Impact‐Resistant 3D‐Printed Composites

open access: yesAdvanced Science, EarlyView.
A universal toughening and energy dissipation strategy inspired by B─O bonds, which can significantly enhance the mechanical properties of composites, enables 3D‐printed smart impact‐resistant structures. Abstract 3D‐printed polymer‐based composites are promising for various engineering applications due to high strength‐to‐weight ratios and design ...
Xiang Hong   +6 more
wiley   +1 more source

High Specific Strength Eutectic High‐Entropy Alloy: Collaborative Effects of TRIP, TWIP, and Nanoprecipitation

open access: yesAdvanced Science, EarlyView.
This study has designed a novel CoCrNiAl eutectic high‐entropy alloy with a two‐level heterogeneous structure with extremely high strength. The high mechanical properties originate from the collaborative strengthening mechanisms, including TWIP, TRIP, and nanoprecipitation.
Z. Q. Wang   +3 more
wiley   +1 more source

A Dual‐Modal Wearable Pulse Detection System Integrated with Deep Learning for High‐Accuracy and Low‐Power Sleep Apnea Monitoring

open access: yesAdvanced Science, EarlyView.
A dual‐modal wearable pulse detection system is developed for sleep apnea monitoring by integrating a self‐powered PENG and PPG sensor with a biomimetic fingertip structure. Through a two‐stage detection strategy, continuous PPW monitoring and on‐demand PPG detection achieve high‐accuracy sleep apnea recognition while maintaining low power consumption.
Jia Wang   +10 more
wiley   +1 more source

Highly Stretchable, Self‐Healable, and Conductive Gelatin Methacryloyl Hydrogel for Long‐Lasting Wearable Tactile Sensors

open access: yesAdvanced Science, EarlyView.
Gelatin methacryloyl hydrogel, which possesses high stretchability, tensile strength, toughness, and autonomous self‐healing capability at room temperature, is developed through the introduction of interpenetrating networks, hierarchical hydrogen bonds (weak and strong H‐bonds), and borate ester bonds.
Zhikang Li   +14 more
wiley   +1 more source

Collagen fibre orientation and dispersion govern ultimate tensile strength, stiffness and the fatigue performance of bovine pericardium.

open access: yesJournal of The Mechanical Behavior of Biomedical Materials, 2019
Adele Whelan   +7 more
semanticscholar   +1 more source

Machine Learning‐Driven Surrogate Modeling for Optimization of Triboelectric Nanogenerator Design Parameters

open access: yesAdvanced Electronic Materials, EarlyView.
Design of Experiment and machine learning regression models are leveraged to analyze four process parameters (thickness, pore ratio, applied force, and frequency) of a contact‐separation triboelectric nanogenerator with graphene‐PDMS and aluminum layers using experimental data for the validation of predicted performance and the optimization of the ...
Mohammad Abrar Uddin   +6 more
wiley   +1 more source

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