Results 141 to 150 of about 3,098 (255)

Comparative Accuracy of Millimeter-Wave Radar and Polysomnography in Sleep Apnea Detection. [PDF]

open access: yesMed Sci Monit
Wang J   +10 more
europepmc   +1 more source

Artificial intelligence in out‐of‐hospital sleep monitoring: Bridging polysomnography and wearable signals

open access: yesSleep Research, EarlyView.
Abstract Polysomnography (PSG), the reference standard for sleep assessment, has limited scalability for large‐scale screening, driving the development of wearable and unobtrusive monitors. However, the physiological signals these devices capture are physiologically correlated with PSG channels but are not completely equivalent.
Jing Yan   +5 more
wiley   +1 more source

Polysulfide Immobilization and Sulfur Conversion Kinetics Promotion via a Tetrathiafulvalene–Crown Ether COF@Graphene Layer for High‐Rate Lithium–Sulfur Batteries

open access: yesSmall, EarlyView.
A polysulfide‐regulating covalent organic framework (TUS‐44) integrating tetrathiafulvalene and crown‐ether linkers forms an electron‐delocalized, ion‐coordinative network that synergistically mediates Li–S redox chemistry. When interfaced with graphene, the TUS‐44@G layer functions as a catalytic and chemisorptive interface, enabling efficient ...
Kai Sun   +11 more
wiley   +1 more source

Analysis of bridge dynamic load test based on millimeter wave radar. [PDF]

open access: yesSci Rep
Qiao L   +5 more
europepmc   +1 more source

Unusual vertical oscillations of a radiosonde

open access: yesWeather, EarlyView.
In summer 2023 in southern England, several unusual balloon launches were observed which descended for a few minutes before resuming ascent. This unusual vertical oscillation was repeated several times in a ‘roller‐coaster’‐like pattern. This article discusses the behaviour of the balloons.
Caleb Miller   +3 more
wiley   +1 more source

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

open access: yesHigh Voltage, EarlyView.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma   +4 more
wiley   +1 more source

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