Results 41 to 50 of about 2,986,195 (299)

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

Time-domain Brillouin scattering assisted by diffraction gratings [PDF]

open access: yes, 2017
Absorption of ultrashort laser pulses in a metallic grating deposited on a transparent sample launches coherent compression/dilatation acoustic pulses in directions of different orders of acoustic diffraction. Their propagation is detected by the delayed
Chaban, Ievgeniia   +4 more
core   +3 more sources

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

Unidimensional Time Domain Quantum Optics

open access: yes, 2019
Choosing the right first quantization basis in quantum optics is critical for the interpretation of experimental results. The usual frequency basis is, for instance, inappropriate for short, subcycle waveforms.
Reulet, Bertrand, Virally, Stéphane
core   +1 more source

A time-domain veto for binary inspirals search [PDF]

open access: yes, 2004
We describe a test to distinguish between actual gravitational waves from binary inspiral and false noise triggers. The test operates in the time domain, and considers the time evolution of the correlator and its statistical distribution.
Guidi, G. M.
core   +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

Uncertainty Analyses in the Finite-Difference Time-Domain Method [PDF]

open access: yes, 2010
Providing estimates of the uncertainty in results obtained by Computational Electromagnetic (CEM) simulations is essential when determining the acceptability of the results.
Edwards, R.S.   +2 more
core   +1 more source

Multiwavelength Evidence for Two New Candidate Transitional Millisecond Pulsars in the Subluminous Disk State: 4FGL J0639.1-8009 and 4FGL J1824.2+1231

open access: yesThe Astrophysical Journal
We 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★

open access: yesAstronomy & Astrophysics
Context. 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

Flow-Heat Conjugate Numerical Simulation Based on the Time-Domain Method

open access: yesXibei Gongye Daxue Xuebao, 2020
For the popups of the applicability of the time-domain based unsteady flow-heat coupling numerical simulation method in physical problems with time-period characteristic, the cases of the plate convection heat transfer and the hollow blunt-nosed blade ...

doaj   +1 more source

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