Results 271 to 280 of about 540,112 (375)

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu   +5 more
wiley   +1 more source

A Compact Optical Sensor to Self‐Assess Skin Health after Sun Exposure

open access: yesAdvanced Sensor Research, EarlyView.
This work presents a portable, low‐cost device capable of detecting changes in the skin associated with excessive sun exposure through reflectance measurements. In vitro validation experiments in skin‐mimicking tissue phantoms showed the device can detect relative pigmentation changes as small as 5%.
Ying Zhi Cheong   +6 more
wiley   +1 more source

A Review on Millimeter‐Thickness Polycrystalline Perovskite for High‐Performance Direct X‐Ray Detection

open access: yesAdvanced Sensor Research, EarlyView.
Millimeter‐thickness polycrystalline metal halide perovskites (MPMHPs) demonstrate outstanding performance in X‐ray detection and hold promise for applications in high‐resolution imaging at low doses. This review provides a summary of research on X‐ray detectors utilizing MPMHP, encompassing various technologies and optimization strategies. Ultimately,
Yanshuang Ba   +11 more
wiley   +1 more source

Wear and mechanical properties of railroad bearing bronzes at different temperatures

open access: bronze, 1928
H.J. French   +3 more
openalex   +1 more source

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