Results 21 to 30 of about 7,236,752 (305)

Turbulence spectrum model and fiber-coupling efficiency in the anisotropic non-Kolmogorov satellite-to-ground downlink

open access: yesResults in Physics, 2021
Increasing experimental and theoretical results have confirmed that the anisotropy of turbulence cells cannot be ignored in the atmospheric turbulence. The satellite-to-ground downlink is the important part of satellite optical communication network, so ...
Chao Zhai
doaj   +1 more source

Non-Kolmogorov cascade of helicity-driven turbulence [PDF]

open access: yesPhysical Review E, 2015
We solve the Navier-Stokes equations with two simultaneous forcings. One forcing is applied at a given large-scale and it injects energy. The other forcing is applied at all scales belonging to the inertial range and it injects helicity. In this way we can vary the degree of turbulence helicity from non helical to maximally helical.
Kessar, Mouloud   +3 more
openaire   +5 more sources

Contextuality in Neurobehavioural and Collective Intelligence Systems

open access: yesQuantum Reports, 2021
Contextuality is often described as a unique feature of the quantum realm, which distinguishes it fundamentally from the classical realm. This is not strictly true, and stems from decades of the misapplication of Kolmogorov probability.
William Sulis
doaj   +1 more source

A novel idea: Calculating anisotropic turbulence only by Kolmogorov structure constant Cn2 and power law α

open access: yesResults in Physics, 2020
As stated in the present research, the anisotropic non-Kolmogorov turbulence model is more in line with the actual turbulence. However, anisotropic factor is vital for the accuracy of calculations, and measuring it precisely is a challenging task.
Chao Zhai
doaj   +1 more source

Non-Classic Atmospheric Optical Turbulence: Review

open access: yesApplied Sciences, 2021
Theoretical models and results of experimental campaigns relating to non-classic regimes occurring in atmospheric optical turbulence are overviewed.
Olga Korotkova, Italo Toselli
doaj   +1 more source

Kolmogorov Basic Graphs and Their Application in Network Complexity Analysis

open access: yesEntropy, 2021
Throughout the years, measuring the complexity of networks and graphs has been of great interest to scientists. The Kolmogorov complexity is known as one of the most important tools to measure the complexity of an object.
Amirmohammad Farzaneh   +2 more
doaj   +1 more source

Domain Structure Formation in Designing of the Opened Informative Measuring Systems

open access: yesПриборы и методы измерений, 2022
The opened systems possess an increasing significance and possibilities of applying in designing of measuring devices. Now an essentially nonlinear models are used for such systems. The perturbation approach is not enough for these purposes.
M. A. Knyazev
doaj   +1 more source

Fiber-coupling efficiency of a Gaussian-beam in anisotropic non-Kolmogorov turbulence in the presence of random angular jitter

open access: yesResults in Physics, 2020
Increasing experimental evidence and theoretical results verify that the non-Kolmogorov property and anisotropy are both exhibited in the atmospheric turbulence.
Chao Zhai
doaj   +1 more source

Simulating non-Kolmogorov turbulence phase screens based on equivalent structure constant and its influence on simulations of beam propagation

open access: yesResults in Physics, 2017
Gaussian distribution is used to describe the power law along the propagation path and phase screen of the non-Kolmogorov turbulence is proposed based on the equivalent refractive-index structure constants.
Ming Chen   +5 more
doaj   +1 more source

Theoretical and Experimental Analysis on Statistical Properties of Coupling Efficiency for Single-Mode Fiber in Free-Space Optical Communication Link Based on Non-Kolmogorov Turbulence

open access: yesApplied Sciences, 2022
Non-Kolmogorov turbulence has been widely observed in free-space optical communication links and should be used to evaluate the system performance. We calculated the wavefront residual variance in the condition of the non-Kolmogorov turbulence model and ...
Lie Ma, Shijie Gao, Bo Chen, Yongkai Liu
doaj   +1 more source

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