Results 131 to 140 of about 3,098 (254)

Detection of vital signs based on millimeter wave radar. [PDF]

Sci Rep
Hao Z, Wang Y, Li F, Ding G, Fan K, Gao Y.   +5 more
europepmc   +1 more source

Compact Wearable Antenna with Metasurface for Millimeter-Wave Radar Applications. [PDF]

Materials (Basel), 2023
de Cos Gómez ME, Fernández Álvarez H, Flórez Berdasco A, Las-Heras Andrés F.   +3 more
europepmc   +1 more source

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

Sleep 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, Zixi Huang, Haowen Zeng, Hanrong Cheng, Dongxing Zhao, Yuxi Luo   +5 more
wiley   +1 more source

A Joint Gesture-Identity Recognition Framework Based on 4D Millimeter-Wave Radar Sensing. [PDF]

Sensors (Basel)
Wu Y, Wu L, Hu T, Xiao Z, Zhang J, Xiao M.   +5 more
europepmc   +1 more source

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

Small, 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, Tsukasa Irie, Samim Reza, Kohki Sasaki, Mika Nozaki, Tokuhisa Kawawaki, Yujun Fu, Dequan Liu, Ranjit Thapa, Saikat Das, Deyan He, Yuichi Negishi   +11 more
wiley   +1 more source

An MMIC LNA for Millimeter-Wave Radar and 5G Applications with GaN-on-SiC Technology. [PDF]

Sensors (Basel), 2023
Huang C, Zhang Z, Wang X, Liu H, Zhang G.   +4 more
europepmc   +1 more source

Unusual vertical oscillations of a radiosonde

Weather, 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, Chun Hay Brian Lo, Stephen Burt, Ryan R. Neely III   +3 more
wiley   +1 more source

Development of a high-precision nano millimeter-wave radar system for non-contact bridge displacement monitoring. [PDF]

Sci Rep
Xiao M, Han Z, Yu J, Xu G, Zhao W, Wu Y.
europepmc   +1 more source

mm-TPG: Traffic Policemen Gesture Recognition Based on Millimeter Wave Radar Point Cloud. [PDF]

Sensors (Basel), 2023
Dang X, Ke W, Hao Z, Jin P, Deng H, Sheng Y.   +5 more
europepmc   +1 more source

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

High 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, Tao Li, Mahdi Motagh, Yan Liu, Yangmao Wen   +4 more
wiley   +1 more source