Results 1 to 10 of about 237,467 (314)

Discrimination of spectral density

open access: greenThe Journal of the Acoustical Society of America, 1986
Experiments were performed to determine the ability of human listeners to discriminate between a sound with a large number of spectral components in a band, of given characteristic frequency and bandwidth, and a sound with a smaller number of components in that band.
William M. Hartmann   +3 more
openalex   +6 more sources

Spectral density constraints on wireless communication. [PDF]

open access: yesHeliyon, 2020
Environmental exposure to man-made electromagnetic field (EMF) has been rising as modern technologies have grown and changes in social behavior have generated more synthetic sources. For safety of human health, EMF levels need to be regulated. The level of EMF should be well below levels where there might be harm, hence we do not expect to see any ...
Alhasnawi MKL   +3 more
europepmc   +7 more sources

Spectral density classification for environment spectroscopy

open access: yesMachine Learning: Science and Technology
Spectral densities encode the relevant information characterizing the system–environment interaction in an open-quantum system problem. Such information is key to determining the system’s dynamics.
J Barr   +3 more
doaj   +5 more sources

GROUND BASED SUPPORT OF THE SPACE MISSION PARKER PERFORMED WITH UKRAINIAN LOW FREQUENCY RADIO TELESCOPES [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. The sporadic radio emissions coming from the Sun in a broad frequency range contain a lot of important information concerning the solar corona, parameters of the radio frequency sources therein, and the parameter variations resulting
V. V. Dorovsky   +2 more
doaj   +1 more source

Rolling stock vibrodynamic impact model on railway pipelines [PDF]

open access: yesE3S Web of Conferences, 2023
The present paper presents the rolling stock vibrodynamic impact model on railway pipelines, obtained on the basis of experimental studies conducted under field conditions at a railway station.
Postnova E.V., Runev E.V.
doaj   +1 more source

On one condition of absolutely continuous spectrum for self-adjoint operators and its applications [PDF]

open access: yesOpuscula Mathematica, 2018
In this work the method of analyzing of the absolutely continuous spectrum for self-adjoint operators is considered. For the analysis it is used an approximation of a self-adjoint operator \(A\) by a sequence of operators \(A_n\) with absolutely ...
Eduard Ianovich
doaj   +1 more source

Densities, spectral densities and modality [PDF]

open access: yesThe Annals of Statistics, 2004
Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Statistics (http://www.imstat.org/aos/) at http://dx.doi.org/10.1214 ...
Davies, PL, Kovac, A
openaire   +8 more sources

Semi-empirical Haken–Strobl model for molecular spin qubits

open access: yesNew Journal of Physics, 2023
Understanding the physical processes that determine the relaxation T _1 and dephasing T _2 times of molecular spin qubits is critical for envisioned applications in quantum metrology and information processing.
Katy Aruachan   +3 more
doaj   +1 more source

Spectral density on the lattice [PDF]

open access: yesNuclear Physics B, 1996
38 pages, uuencoded tar-compressed ps ...
Gerald A. Miller, D. Makovoz
openaire   +3 more sources

The spectral density of a product of spectral projections [PDF]

open access: yesJournal of Functional Analysis, 2015
We consider the product of spectral projections $$ _ ( ) = 1_{(-\infty, - )}(H_0) 1_{( + ,\infty)}(H) 1_{(-\infty, - )}(H_0) $$ where $H_0$ and $H$ are the free and the perturbed Schr dinger operators with a short range potential, $ >0$ is fixed and $ \to0$.
Frank, Rupert L., Pushnitski, Alexander
openaire   +5 more sources

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