Results 31 to 40 of about 700,724 (318)
IpDFT-Tuned Estimation Algorithms for PMUs: Overview and Performance Comparison
The Interpolated Discrete Fourier Transform (IpDFT) is one of the most popular algorithms for Phasor Measurement Units (PMUs), due to its quite low computational complexity and its good accuracy in various operating conditions.
David Macii, Daniel Belega, Dario Petri
doaj +1 more source
Effects of Assuming Constant Optical Scattering on Haemoglobin Concentration Measurements Using NIRS during a Valsalva Manoeuvre [PDF]
Resolving for changes in concentration of tissue chromophores in the human adult brain with near-infrared spectroscopy has generally been based on the assumption that optical scattering and pathlength remain constant.
Cooper, CE +20 more
core +1 more source
Measurements of Light Extinction by Single Aerosol Particles [PDF]
A Bessel beam optical trap is combined with continuous wave cavity ringdown spectroscopy to measure the extinction cross section of individual aerosol particles.
Reid, Jonathan P. +3 more
core +1 more source
The aim of Lab-on-a-chip systems is the downscaling of analytical protocols into microfluidic devices, including optical measurements. In this context, the growing interest of the scientific community in opto-microfluidic devices has fueled the ...
Riccardo Zamboni +5 more
doaj +1 more source
Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path [PDF]
An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas +11 more
core +1 more source
Delta function of the Fourier transform [PDF]
In the analysis of the double window Fourier transform, it is found that both components of the direct transformation contain an equal amount of information sufficient to restore the original time signal. A double conversion diagram has been constructed.
Parfentyev Nikolay +2 more
doaj +1 more source
Multi-Sensor System For Level Measurements With Optical Fibres [PDF]
A system for measuring liquid level in multiple tanks using optical fibre technology has been developed. The oil field service industry can benefit from this intrinsically safe technology.
Sánchez-Pena, José Manuel +3 more
core +1 more source
Measuring Quantum Optical Hamiltonians [PDF]
We show how recent state-reconstruction techniques can be used to determine the Hamiltonian of an optical device that evolves the quantum state of radiation. A simple experimental setup is proposed for measuring the Liouvillian of phase-insensitive devices.
D'Ariano, G. M., Maccone, L.
openaire +2 more sources
A comparison of optical and radar measurements of mesospheric winds and tides [PDF]
Optical measurements of mesospheric winds by Fabry‐Perot spectrometers, FPSs, at Mawson, 67.6°S 62.9°E, and Davis, 68.6°S 78.0°E, Antarctica are compared with similar measurements obtained using a spaced‐antenna MF radar at Davis.
Vincent, R. +3 more
core +1 more source
Research of dispersion characteristics of optical glass
Dispersion characteristics of optical glass are considered. An approach to research of dispersion characteristics of optical glass is proposed, requiring the measurement of the refractive index at only three wavelengths, which simplifies the measurement ...
A.I. Yurin, G.N. Vishnyakov, V.L. Minaev
doaj +1 more source

