Results 31 to 40 of about 7,236,752 (305)

Free space optical system performance for a Gaussian beam propagating through non Kolmogorov weak turbulence [PDF]

open access: yes, 2009
Atmospheric turbulence has been described for many years by Kolmogorov's power spectral density model because of its simplicity. Unfortunately several experiments have been reported recently that show Kolmogorov theory is sometimes incomplete to describe
LARRY C. ANDREWS   +6 more
core   +1 more source

A unifying nonlinear probabilistic epidemic model in space and time

open access: yesScientific Reports, 2021
Covid-19 epidemic dramatically relaunched the importance of mathematical modelling in supporting governments decisions to slow down the disease propagation. On the other hand, it remains a challenging task for mathematical modelling.
Roberto Beneduci   +2 more
doaj   +1 more source

Probability density function of fiber-coupling efficiency and temporal power spectrum of irradiance fluctuations in the anisotropic non-Kolmogorov satellite-to-ground downlink

open access: yesResults in Physics, 2021
As many related experimental and theoretical results are identified, scholars have found that the anisotropy of turbulence cells is indispensable in the atmospheric turbulence.
Chao Zhai
doaj   +1 more source

Average transmittance in non-Kolmogorov turbulence

open access: yesOptics Communications, 2013
Abstract Average transmittance in non-Kolmogorov turbulence is evaluated. Our recently published equivalent structure constant formulation is employed in our numerical evaluations. At the fixed propagation distance and wavelength, and at the corresponding equivalent structure constant, as the power law exponent of the non-Kolmogorov spectrum ...
Ata, Yalcin   +2 more
openaire   +2 more sources

Kolmogorov-Smirnov test for nestedness and chromatin types.

open access: yes, 2023
Kolmogorov-Smirnov test for nestedness and chromatin types.
Dolores Bernenko (16528426)   +3 more
core   +1 more source

Generalized wavefront phase for non-Kolmogorov turbulence

open access: yesOptics Letters, 2008
We introduce the Lévy fractional Brownian field family to model the turbulent wavefront phase. This generalized model allows us to overcome the limitations found in a previous approach [Perez et al., J. Opt. Soc. Am. A 21, 1962 (2004)]. More precisely, our new model provides stationary phase increments over the full inertial range. Thus it successfully
Pérez, Darío Gabriel   +1 more
openaire   +5 more sources

Witnessing non-Markovianity by quantum quasi-probability distributions

open access: yesNew Journal of Physics, 2022
We employ frames consisting of rank-one projectors (i.e. pure quantum states) and their induced informationally complete quantum measurements to represent generally mixed quantum states by quasi-probability distributions.
Moritz F Richter   +2 more
doaj   +1 more source

Kolmogorov-Smirnov test results comparing the distribution of comments per political entity across gender.

open access: yes, 2022
Kolmogorov-Smirnov test results comparing the distribution of comments per political entity across gender.
Isabelle Augenstein (14013962)   +2 more
core   +1 more source

Invariant forms and control dimensional parameters in complexity quantification

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
Non-equilibrium dynamics is omnipresent in nature and technology and can exhibit symmetries and order. In idealistic systems this universality is well-captured by traditional models of dynamical systems. Realistic processes are often more complex.
Snezhana I. Abarzhi
doaj   +1 more source

Non Kolmogorov Probability Models Outside Quantum Mechanics [PDF]

open access: yesAIP Conference Proceedings, 2009
This paper is devoted to analysis of main conceptual problems in the interpretation of QM: reality, locality, determinism, physical state, Heisenberg principle, “deterministic” and “exact” theories, laws of chance, notion of event, statistical invariants, adaptive realism, EPR correlations and, finally, the EPR‐chameleon experiment.
Luigi Accardi   +7 more
openaire   +3 more sources

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