Results 91 to 100 of about 25,531 (223)

Average Polarization of Electromagnetic Gaussian Schell-Model Beams through Anisotropic Non-Kolmogorov Turbulence [PDF]

open access: yesRadioengineering, 2016
Polarization properties of electromagnetic Gaussian Schell-model beams propagating through the anisotropic non-Kolmogorov turbulence of marine-atmosphere channel are studied based on the cross-spectral density matrix.
Yuanhang Zhao, Yixin Zhang, Qiu Wang
doaj  

Is acquisition‐related foreign direct investment during an economic crisis detrimental for domestic innovation?

open access: yesThe Scandinavian Journal of Economics, EarlyView.
Abstract We study how acquisition‐related foreign direct investment during economic crises affects R&D investments and the direction of innovation of target firms, compared with acquisitions made during periods of strong economic growth. Using a panel of Spanish firms, we find that foreign multinationals cherry‐pick the best domestic firms ...
María García‐Vega   +2 more
wiley   +1 more source

Double-passage propagation of laser beams in non-Kolmogorov turbulence

open access: yes, 2016
In the atmospheric boundary layer, with some exceptions very close to the ground, optical turbulence is homogeneous and isotropic obeying the Kolmogorov power spectrum model of the refractive index within the inertial sub-range.
Toselli, Italo   +3 more
core   +1 more source

Non-Kolmogorov atmospheric turbulence and orbital angular momentum of entangled states for optical communication

open access: yesResults in Physics, 2019
We extend the theory of detection probabilities of single-photon communication in turbulent atmosphere to the entangled case and derive analytical expressions for detection probabilities.
Yuejin Yang   +5 more
doaj   +1 more source

Scale‐up of Streptomyces species cultivations based on the morphological response to the energy dissipation rate

open access: yesAIChE Journal, Volume 72, Issue 7, July 2026.
Abstract Filamentous microorganisms exhibit complex morphologies that influence product formation and are affected by various bioprocess parameters. Consistent morphology is therefore essential for comparable results during scale‐up. This study investigates the scale‐up of Streptomyces species (Streptomyces spp.) cultivations from shake flasks to ...
Gesa Brauneck   +12 more
wiley   +1 more source

Land‐Based Functional Rehabilitation Versus Aquatic Therapy on the Quality of Life of Individuals With Chronic Chikungunya: A Randomized Clinical Trial

open access: yesPhysiotherapy Research International, Volume 31, Issue 3, July 2026.
ABSTRACT Background and Purpose Chikungunya may progress to a chronic phase marked by persistent pain and functional impairment, reducing the quality of life. Exercise‐based rehabilitation is essential, though comparisons between different modalities remain scarce. Exercises in an aquatic environment can be designed as a task‐oriented intervention that
Oliva Maria da Silva Sousa   +5 more
wiley   +1 more source

Laser guide stars and turbulence profiling for extremely large telescopes [PDF]

open access: yes, 2006
The next generation of ground based telescopes, the so-called extremely large telescopes, will offer a significant leap in sensitivity and resolution compared to current telescopes. They also present a range of technical challenges.
Butterley, Timothy
core  

GNSS Zenith Wet Delay as a Boundary Layer Diagnostic: Regime‐Dependent Turbulence Signatures From Large Eddy Simulation and Observations

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Global Navigation Satellite Systems (GNSS) provide continuous measurements of zenith wet delay (ZWD), reflecting column‐integrated atmospheric water vapor. While the slowly varying ZWD is routinely assimilated in numerical weather prediction, the rapid fluctuations on timescales of seconds to minutes that arise from boundary‐layer turbulence ...
Gaël Kermarrec   +3 more
wiley   +1 more source

The Anatomy of Convection Under Lake Ice: Reynolds Stresses and Convective Energy Budget From In Situ Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract We present the first in situ observations of the full turbulence tensor of free convection under lake ice, obtained using an original method based on a set of two synchronized acoustic Doppler profilers to measure all six turbulent stress components.
G. B. Kirillin   +2 more
wiley   +1 more source

An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions

open access: yes, 2013
In this thesis I study a variety of two-dimensional turbulent systems using a mixed analytical, phenomenological and numerical approach. The systems under consideration are governed by the two-dimensional Navier-Stokes (2DNS), surface quasigeostrophic
Blackbourn, Luke A. K.
core  

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