Results 141 to 150 of about 191,234 (287)
Vision-Based fatigue detection using a smartphone [PDF]
Hudson Guilherme V Assumpcao +3 more
openalex +1 more source
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang +7 more
wiley +1 more source
Using smartphones as magnifying devices [PDF]
Alireza Shoaei Shirehjini +1 more
openalex +1 more source
In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim +19 more
wiley +1 more source
A bio‐inspired Micro‐wrinkled Janus elastomeric flexible strain sensor mimicking wrinkled‐leaf viburnum is developed. Endowed with a synergistic sensing mechanism including wrinkle‐guided microcracks, modulus‐gradient‐driven strain division, and a parallel conductive circuit, it achieves ultra‐high linearity, sensitivity, wide strain range, and ...
Jing Lin +11 more
wiley +1 more source
Mechanistic Considerations for Battery Charging Protocol Design
This review bridges practical fast‐charging protocols with fundamental mechanisms of SOC‐dependent structural and compositional changes in electrode materials, kinetic limitations such as polarization and inhomogeneity, and heat generation characteristics shaped by protocol design.
Wenlong Li +13 more
wiley +1 more source
Changes in Alcohol Retail Laws and Foot Traffic at Liquor Stores
ABSTRACT We study how expanding alcohol availability at grocery and convenience stores affects consumer traffic in liquor stores by leveraging recent changes in state‐level alcohol distribution laws in a difference‐in‐difference quasi‐experimental design.
Nathan Palardy +3 more
wiley +1 more source
Reflections of digital slavery in physical inactivity: examining gender-based physical activity attitudes and smartphone addiction among university students. [PDF]
Altinisik U +5 more
europepmc +1 more source
This Perspective examines practical power solutions for wearable healthcare systems, highlighting the limits of standard batteries. It categorizes wearables into four domains—point‐of‐care diagnostics, episodic monitoring, continuous long‐term monitoring, and therapeutic platforms—and analyzes their power needs.
Seokheun Choi
wiley +1 more source

