Results 21 to 30 of about 2,828,655 (265)
Sensors, 2020 This paper presents an algorithm for the measurement of the human heart rate, using photoplethysmography (PPG), i.e., the detection of the light at the skin surface.
Marek Wójcikowski, Bogdan Pankiewicz
doaj +1 more source
Clinical Brain Monitoring with Time Domain NIRS: A Review and Future Perspectives
Applied Sciences, 2019 Near-infrared spectroscopy (NIRS) is an optical technique that can measure brain tissue oxygenation and haemodynamics in real-time and at the patient bedside allowing medical doctors to access important physiological information.
Frédéric Lange, Ilias Tachtsidis
doaj +1 more source
Emotions in time domain synthesis [PDF]
4th International Conference on Spoken Language Processing (ICSLP 1996), 1996 A preliminary test exploring 4 emotions showed that conveying emotions by time domain synthesis may be possible. Therefore, a more sophisticated test was carried out in order to determine the influence of the prosodic parameters in the perception of a speaker's emotional state. Six different emotional states were investigated. The stimuli of the second
Barbara Heuft +2 more
openaire +1 more source
Electromagnetic forces in the time domain
Optics Express, 2022 We look beyond the standard time-average approach and investigate optical forces in the time domain. The formalism is developed for both the Abraham and Minkowski momenta, which appear to converge in the time domain. We unveil an extremely rich – and by far unexplored – physics associated with the dynamics of the optical forces, which can even attain ...
Andrei Kiselev +2 more
openaire +3 more sources
Applied Sciences, 2020 NMR Relaxation (NMRR) is an extremely useful quantitative technique for material science, particularly for studying polymers and porous materials. NMR Cryoporometry (NMRC) is a powerful technique for the measurement of pore-size distributions and total ...
J. Beau W. Webber
doaj +1 more source
Sensors, 2018 A fully integrated sensor interface for a wide operational temperature range is presented. It translates the sensor signal into a pulse width modulated (PWM) signal that is then converted into a 12-bit digital output.
Emna Chabchoub +4 more
doaj +1 more source
A Linearization Time-Domain CMOS Smart Temperature Sensor Using a Curvature Compensation Oscillator
Sensors, 2013 This paper presents an area-efficient time-domain CMOS smart temperature sensor using a curvature compensation oscillator for linearity enhancement with a −40 to 120 °C temperature range operability.
Hao-Wen Chen, Chun-Chi Chen
doaj +1 more source
Time-Domain Circuit Modelling for Hybrid Supercapacitors
Energies, 2021 Classic circuit modeling for supercapacitors is limited in representing the strongly non-linear behavior of the hybrid supercapacitor technology. In this work, two novel modeling techniques suitable to represent the time-domain electrical behavior of a ...
Fabio Corti +6 more
doaj +1 more source
The Astrophysical JournalWe report the discovery of two new Galactic accreting compact objects consistent with the respective positions of the unassociated Fermi-LAT γ -ray sources 4FGL J0639.1-8009 and 4FGL J1824.2+1231. A combination of new and archival X-ray data from Chandra,
Rebecca Kyer +6 more
doaj +1 more source
Revisiting the Milky Way stellar long bar and the 3 kpc arm★
Astronomy & AstrophysicsContext. One of the most difficult and unexplored regions of the Milky Way is the highly extincted in-plane central region within the Galactic coordinates 10◦ ≲ |ℓ| ≲ 30◦, |b| ≲ 3◦, where we have the long-bar and 3 kpc arm with intermediate-age stellar ...
López-Corredoira M. +3 more
doaj +1 more source