Results 21 to 30 of about 2,111 (266)
Propagation Factors of Partially Coherent Model Beams in Oceanic Turbulence
IEEE Photonics Journal, 2017 Based on the extended Huygens–Fresnel principle and second-order moments of the Wigner distribution function, we have derived the analytical expressions of the propagation factor of four kinds of partially coherent model beams in oceanic ...
Xianwei Huang, Yanfeng Bai, Xiquan Fu
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Diagnosing Ocean‐Wave‐Turbulence Interactions From Space [PDF]
Geophysical Research Letters, 2019 AbstractNumerical studies indicate that interactions between ocean internal gravity waves (especially those <100 km) and geostrophic (or balanced) motions associated with mesoscale eddy turbulence (involving eddies of 100–300 km) impact the ocean's kinetic energy budget and therefore its circulation.
H. S. Torres +8 more
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Tellus: Series B, Chemical and Physical Meteorology, 2019 Dry deposition is an important loss process for atmospheric particles and can be a significant part of total deposition estimates calculated for critical loads analyses. However, algorithms used in large-scale air quality and atmospheric chemistry models
Rick D. Saylor +5 more
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Turbulence and fossil turbulence in oceans and lakes
Chinese Journal of Oceanology and Limnology, 2004 Turbulence is defined as an eddy-like state of fluid motion where the inertial-vortex forces of the eddies are larger than any of the other forces that tend to damp the eddies out. Energy cascades of irrotational flows from large scales to small are non-turbulent, even if they supply energy to turbulence. Turbulent flows are rotational and cascade from
Leung, Pak Tao, Gibson, Carl H.
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IEEE Photonics Journal, 2016 An orbital angular momentum (OAM)-mode transmission model of Bessel–Gauss (BG) beams is established to derive an analytic expression of the channel information capacity of an OAM-based free-space optical (FSO) communication system with non ...
Mingjian Cheng +3 more
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Effect of oceanic turbulence on the statistical features of electromagnetic optical beam
Results in PhysicsThis work deals with the intricate problem of electromagnetic optical beam propagation through oceanic turbulence. Using the extended Huygens–Fresnel principle, numerically, the behavior of the degree of cross-polarization (DOCP), electromagnetic degree ...
Hemant Kumar Singh +2 more
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Results in Physics, 2018 By introducing the orbital angular momentum (OAM) eigenfunctions of the pulsed beam and two-frequency mutual coherence function in oceanic turbulence, we establish the received probability distribution of OAM modes of the ultrashort Laguerre-Gaussian ...
Ye Li, Yi-xin Zhang, Yun Zhu
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Ocean acoustics turbulence study (OATS) [PDF]
The Journal of the Acoustical Society of America, 1991 Limited in situ measurements from high-frequency underwater acoustic echo sounders have suggested that there may be circumstances in which acoustic scattering from ocean temperature microstructure is sufficiently intense to be observable over volume reverberation due to biologics.
Louis Goodman +4 more
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Results in Physics, 2019 We propose a theoretical model for a rotating elliptical Gaussian optical coherence lattice (REGOCL) in oceanic turbulence. It is found that every sub-beam in the REGOCL maintains a controllable rotation within a certain distance, which plays a ...
Feng Ye +4 more
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From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures
Advanced Robotics Research, EarlyView.This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
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