Results 11 to 20 of about 7,236,752 (305)

On non-Kolmogorov turbulence in blood flow and its possible role in mechanobiological stimulation [PDF]

open access: yesScientific Reports, 2022
The study of turbulence in physiologic blood flow is important due to its strong relevance to endothelial mechanobiology and vascular disease. Recently, Saqr et al. (Sci Rep 10, 15,492, 2020) discovered non-Kolmogorov turbulence in physiologic blood flow
Khalid M. Saqr, Iham F. Zidane
doaj   +2 more sources

Novel Simulation and Analysis of Mie-Scattering Lidar for Detecting Atmospheric Turbulence Based on Non-Kolmogorov Turbulence Power Spectrum Model [PDF]

open access: yesEntropy, 2022
The Mie-scattering lidar can detect atmospheric turbulence intensity by using the return signals of Gaussian beams at different heights. The power spectrum method and Zernike polynomial method are used to simulate the non-Kolmogorov turbulent phase plate,
Yingnan Zhang   +3 more
doaj   +2 more sources

Non-Kolmogorov atmospheric turbulence and optical signal propagation [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
In the present review, we make an attempt to attract attention to the effect of non-Kolmogorov behavior of turbulence in various scales on the characteristics of electromagnetic waves propagation through a turbulent atmosphere on the example of certain ...
E. Golbraikh   +3 more
doaj   +5 more sources

Oceanic non-Kolmogorov optical turbulence and spherical wave propagation

open access: yesOptics Express, 2021
Light propagation in turbulent media is conventionally studied with the help of the spatio-temporal power spectra of the refractive index fluctuations. In particular, for natural water turbulence several models for the spatial power spectra have been developed based on the classic, Kolmogorov postulates.
Jin-Ren Yao   +6 more
core   +5 more sources

On the non existence of periodic orbits for a class of two dimensional Kolmogorov systems [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2021
In this paper we characterize the integrability and the non-existence of limit cycles of Kolmogorov systems of the form $$ x^{\prime}=x\left(B_{1}(x,y)\, \ln \left| \frac{A_{3}(x,y)}{A_{4}(x,y)}\right| + B_{3}(x,y)\ln \left| \frac{A_{1}(x,y)}{A_{2}(x,y)}\
Rachid Boukoucha
doaj   +1 more source

A Survey of Structure of Atmospheric Turbulence in Atmosphere and Related Turbulent Effects

open access: yesAtmosphere, 2021
The Earth’s atmosphere is the living environment in which we live and cannot escape. Atmospheric turbulence is a typical random inhomogeneous medium, which causes random fluctuations of both the amplitude and phase of optical wave propagating through it.
Fazhi Wang   +4 more
doaj   +1 more source

Beam Quality Factor of Partially Coherent Airy Beam in Non-Kolmogorov Turbulence

open access: yesAtmosphere, 2022
A universal formula of the beam quality factor for a partially coherent Airy (PCA) beam in non-Kolmogorov turbulence has been investigated. Results of numerical simulation display that expanding the internal scales of non-Kolmogorov turbulence is good ...
Wei Wen, Xianwu Mi, Sirui Chen
doaj   +1 more source

Influence of Source Parameters and Non-Kolmogorov Turbulence on Evolution Properties of Radial Phased-Locked Partially Coherent Vortex Beam Array

open access: yesPhotonics, 2021
Partially coherent optical vortices have been applicated widely to reduce the influence of atmospheric turbulence, especially for free-space optical (FSO) communication.
Jiao Wang   +5 more
doaj   +1 more source

Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle

open access: yesPhotonics, 2021
With the in-depth study of atmospheric turbulence, scholars have identified that the anisotropy of turbulence cells should not be forgotten. The anisotropic non-Kolmogorov turbulence model can better characterize the actual situation of atmospheric ...
Chao Zhai
doaj   +1 more source

Wander of a Gaussian-Beam Wave Propagating through Kolmogorov and Non-Kolmogorov Turbulence along Laser-Satellite Communication Uplink

open access: yesAtmosphere, 2022
It is accepted that there exists two kinds of atmospheric turbulence in the Earth’s aerosphere—Kolmogorov and non-Kolmogorov turbulence; therefore, it is important to research their combined impacts on laser-satellite communications.
Fazhi Wang   +4 more
doaj   +1 more source

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