Results 21 to 30 of about 42,577 (256)

Electrically driven heartbeat effect of gallium-based liquid metal on a ratchet

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The realization of the liquid metal heartbeat effect shows better controllability under non-periodic stimuli than spontaneous oscillation or periodic stimuli.
Shutong Wang   +6 more
doaj   +1 more source

An Internet Heartbeat

open access: yesCoRR, 2019
Obtaining sound inferences over remote networks via active or passive measurements is difficult. Active measurement campaigns face challenges of load, coverage, and visibility. Passive measurements require a privileged vantage point. Even networks under our own control too often remain poorly understood and hard to diagnose.
Beverly, Robert, Allman, Mark
openaire   +3 more sources

Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors

open access: yesSensors, 2019
An accurate method for detecting vital signs obtained from a Doppler radar sensor is proposed. A Doppler radar sensor can remotely obtain vital signs such as heartbeat and respiration rate, but the vital signs obtained by using the sensor do not show ...
Ju-Yeon Kim   +3 more
doaj   +1 more source

Spectrogram-Based Non-Contact RRI Estimation by Accurate Peak Detection Algorithm

open access: yesIEEE Access, 2018
Demands for vital sign monitoring are increasing in the field of health care. In particular, the R-R Interval (RRI) estimation has been studied extensively, since the RRI variation is highly related with the stress of a subject.
Kohei Yamamoto   +2 more
doaj   +1 more source

Unconstrained measurement of lying posture, respiration and heartbeat using a tactile sensor on a bed

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Sleep monitoring provides useful information for keeping a good health condition and detecting diseases. The monitoring system should not interfere with natural sleep, and be an existence that is almost unnoticed by the person being measured, to be used ...
Toshiharu MUKAI   +4 more
doaj   +1 more source

Improved Heartbeat Detection by Exploiting Temporal Phase Coherency in FMCW Radar

open access: yesIEEE Access, 2021
We propose a novel range-bin selection method, temporal phase coherency (TPC), to improve the accuracy of heartbeat extraction by using the frequency-modulated continuous wave (FMCW) radar.
Ho-Ik Choi   +3 more
doaj   +1 more source

Comparative Performance Analysis of Time-Frequency Domain Images and Raw Signal Data for Classification of ECG Signals

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
ECG signals are one of the most common tools used to diagnose cardiovascular diseases. ECG signals are obtained by measuring electrical changes on the skin surface. Arrhythmias occurring in the heart are diagnosed because the expert evaluates ECG signals.
Turgut Özseven
doaj   +1 more source

Investigating the relationship between interoceptive accuracy, interoceptive awareness and emotional susceptibility

open access: yesFrontiers in Psychology, 2015
Interoception, the sense of the physiological condition of the body, provides a basis for subjective feelings and emotions. Anterior insular cortex activity represents the state of the body and varies according to personality traits, such as emotional ...
Giuseppe eCalì   +6 more
doaj   +1 more source

Again in a Heartbeat

open access: yesAJN, American Journal of Nursing, 2021
When a mother's mental state rapidly worsens during the pandemic, her daughter brings her home.
openaire   +3 more sources

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