Unsupervised Detection of Multiple Sleep Stages Using a Single FMCW Radar
Applied Sciences, 2023 The paper proposes a unsupervised method for detecting the three stages of sleep—wake, rapid eye movement (REM) sleep, and non-REM sleep—using biosignals obtained from a 61 GHz single frequency modulated continuous wave (FMCW) radar.
Young-Keun Yoo +2 more
doaj +1 more source
S-Mbank: Secure Mobile Banking Authentication Scheme Using Signcryption, Pair Based Text Authentication, and Contactless Smartcard [PDF]
, 2017 Nowadays, mobile banking becomes a popular tool which consumers can conduct financial transactions such as shopping, monitoring accounts balance, transferring funds and other payments.
Putra, Dea Saka Kurnia +2 more
core +2 more sources
Analysis of thermal characteristics with multi-physicsc oupling for the feed system of a precision CNC machine tool [PDF]
Bulletin of the Polish Academy of Sciences: Technical SciencesThe machining accuracy of CNC machine tools is significantly affected by the thermal deformation of the feed system. The ball screw feed system is extensively used as a transmission component in precise CNC machine tools, responsible for converting ...
Junjian Zheng +7 more
doaj +1 more source
An Electronic System for the Contactless Reading of ECG Signals
Sensors, 2017 The aim of this work is the development of a contactless capacitive sensory system for the detection of (Electrocardiographic) ECG-like signals. The acquisition approach is based on a capacitive coupling with the patient body performed by electrodes ...
Francesca Romana Parente +6 more
doaj +1 more source
Vital Sign Monitoring Using FMCW Radar in Various Sleeping Scenarios
Sensors, 2020 Remote monitoring of vital signs for studying sleep is a user-friendly alternative to monitoring with sensors attached to the skin. For instance, remote monitoring can allow unconstrained movement during sleep, whereas detectors requiring a physical ...
Emmi Turppa +3 more
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Contactless camera-based AHI score estimation in SAS patients
Current Directions in Biomedical Engineering, 2023 Sleep apnea syndrome (SAS) is a common sleeprelated breathing disorder characterized by recurring cessations of airflow during sleep. The gold standard for diagnosing SAS is polysomnography (PSG) which requires the patient to spend one or several nights ...
Alic Belmin +4 more
doaj +1 more source
A novel high resolution contactless technique for thermal field mapping and thermal conductivity determination: Two-Laser Raman Thermometry [PDF]
, 2013 We present a novel high resolution contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through
B. Graczykowski +7 more
core +2 more sources
Non-Contact Monitoring of Breathing Pattern and Respiratory Rate via RGB Signal Measurement
Sensors, 2019 Among all the vital signs, respiratory rate remains the least measured in several scenarios, mainly due to the intrusiveness of the sensors usually adopted.
Carlo Massaroni +4 more
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Wi-Senser: Contactless Head Movement Detection during Sleep Utilizing WiFi Signals
Applied Sciences, 2023 Detecting human head movement during sleep is important as it can help doctors to assess many physical or mental health problems, such as infantile eczema, calcium deficiency, insomnia, anxiety disorder, and even Parkinson’s disease, and provide useful ...
Yi Fang, Wei Liu, Sun Zhang
doaj +1 more source
Applied Sciences, 2019 Techniques for noncontact measurement of vital signs using camera imaging technologies have been attracting increasing attention. For noncontact physiological assessments, computer vision-based methods appear to be an advantageous approach that could be ...
Fatema-Tuz-Zohra Khanam +2 more
doaj +1 more source