Results 161 to 170 of about 28,136 (284)

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

Estimating Rain‐Specific Attenuation at Extremely High Frequencies From Disdrometer Measurements at Various Climate Zones in the US

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The raindrop size distribution (DSD) plays an essential role in understanding rain attenuation effects at extremely high frequencies (EHFs). Over 1 year of DSD measurements was taken at different Köppen–Geiger climate classifications within the United States. Optical disdrometers from Thies Clima were used to measure both the size and velocity
Eugene S. Hong, George Brost, Nicholas Tarasenko, Steven A. Lane   +3 more
wiley   +1 more source

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

Med Sci Monit
Wang J, Zhang Z, Wang Q, Wen L, Liu J, Gu C, Xiao P, Fang Z, Li Y, Yao X, Zhang Z.   +10 more
europepmc   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

Study on Multi-Heterogeneous Sensor Data Fusion Method Based on Millimeter-Wave Radar and Camera. [PDF]

Sensors (Basel), 2023
Duan J.
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

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

Sci Rep
Qiao L, Xia XJ, Guo H, Song H, Feng YQ, Ka TA.   +5 more
europepmc   +1 more source

mmSafe: A Voice Security Verification System Based on Millimeter-Wave Radar. [PDF]

Sensors (Basel), 2022
Hao Z, Peng J, Dang X, Yan H, Wang R.
europepmc   +1 more source

Chinese Guidelines for the Diagnosis and Surgical Treatment of Adult Obstructive Sleep Apnea (2024)

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Obstructive sleep apnea (OSA) is a common chronic disorder characterized by abnormal breathing during sleeping. OSA can damage various organs throughout the body and is burdensome, both socially and economically. Moreover, as OSA has been increasingly studied in recent years, new evidence‐based guidelines for its diagnosis and surgical ...
Working Group of Guideline for the Diagnosis and Surgical Treatment of Adult OSA, Subspecialty Group of Laryngopharyngology, Society of Otorhinolaryngology Head and Neck Surgery, Chinese Medical Association, Subspecialty Group of Voice, Society of Otorhinolaryngology Head and Neck Surgery, Chinese Medical Association, Editorial Board of Chinese Journal of Otorhinolaryngology Head and Neck Surgery   +7 more
wiley   +1 more source

Non-contact ECG reconstruction algorithm based on millimeter wave radar

Dianxin kexue
With the wide application of millimeter-wave radar signals in medical monitoring, accurately mapping these signals to ECG signals has become a key challenge in meeting the needs for daily continuous non-contact ECG monitoring.
LUO Jingxue, ZHANG Yuanhui, DAI Xiao, FU Duo, LIU Kang   +4 more
doaj