Results 21 to 30 of about 16,509,412 (103)

Deep encoder and decoder for time-domain speech separation

open access: yesMechanical Engineering Journal, 2023
The previous research of speech separation has significantly improved separation performance based on the time-domain method: encoder, separator, and decoder. Most research has focused on revising the architecture of the separator.
Kohei TAKAHASHI, Toshihiko SHIRAISHI
doaj   +1 more source

The Validity of Ultra-Short-Term Heart Rate Variability during Cycling Exercise

open access: yesSensors, 2023
Ultra-short-term heart rate variability (HRV) has been validated in the resting state, but its validity during exercise is unclear. This study aimed to examine the validity in ultra-short-term HRV during exercise considering the different exercise ...
Yukiya Tanoue   +8 more
doaj   +1 more source

Vector fitting realisation of exact time domain modal nonreflecting boundary condition [PDF]

open access: yes, 2010
To employ the modal nonreflecting boundary condition (MNRBC) in cylindrical coordinates in the finite element time domain (FETD) method, a time domain kernel expression must be found that it is the inverse Laplace transform (ILT) of a known frequency ...
Bavelis, Konstantinos, Mias, Christos
core   +1 more source

Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors

open access: yesNature Communications, 2017
The development of highly sensitive photodetectors is important for image sensing and optical communication applications. Cho et al., report ultra-sensitive photodetectors based on monolayered quantum dots buried in between amorphous-oxide semiconductors
Kyung-Sang Cho   +6 more
doaj   +1 more source

Photoplethysmographic Time-Domain Heart Rate Measurement Algorithm for Resource-Constrained Wearable Devices and its Implementation

open access: yesSensors, 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

A Time-Domain Numerical Method for Multi-Conductor Coaxial Lines Using the Exact Retarded Potential Integral Equations

open access: yesIEEE Access, 2021
We present a time-domain numerical method for calculating the current propagating through coaxial lines including the radiation effect. In previous studies of transmission lines using the retarded potential integral equations (RPIE), the so-called thin ...
Shuji Kitora   +3 more
doaj   +1 more source

Clinical Brain Monitoring with Time Domain NIRS: A Review and Future Perspectives

open access: yesApplied 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

A Temperature-Hardened Sensor Interface with a 12-Bit Digital Output Using a Novel Pulse Width Modulation Technique

open access: yesSensors, 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

Some Applications of a Field Programmable Gate Array Based Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry

open access: yesApplied 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

A Linearization Time-Domain CMOS Smart Temperature Sensor Using a Curvature Compensation Oscillator

open access: yesSensors, 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

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