Results 31 to 40 of about 1,338,792 (250)

Numerical Investigation on the Influence of Water Vapor Ionization on the Dynamic and Energy Deposition of Femtosecond Ultraviolet Laser Filamentation in Air

open access: yesApplied Sciences, 2019
The effects of water vapor ionization on the nonlinear propagation of femtosecond laser pulses with a 248 nm wavelength are numerically investigated in this paper.
Qingwei Zeng   +6 more
doaj   +1 more source

Propagation to the upper atmosphere of acoustic-gravity waves from atmospheric fronts in the Moscow region [PDF]

open access: yesAnnales Geophysicae, 2019
The paper uses experimental data of pressure variations on the Earth's surface during the passage of an atmospheric front recorded by a network of four microbarographs in the Moscow region.
Y. Kurdyaeva   +7 more
doaj   +1 more source

Long-term trends of foE and geomagnetic activity variations [PDF]

open access: yesAnnales Geophysicae, 2003
A relationship between foE trends and geomagnetic activity long-term variations has been revealed for the first time. By analogy with earlier obtained results on the foF2 trends it is possible to speak about the geomagnetic control of the foE ...
A. V. Mikhailov, B. A. de la Morena
doaj   +1 more source

The effect of atmospheric turbulence on the performance of the free space optical communications [PDF]

open access: yes, 2008
In free space optical (FSO) communication links, atmospheric turbulence has a significant impact on the quality of a laser beam propagating through the atmosphere.
Ghassemlooy, Zabih   +7 more
core   +1 more source

Millimeterwave propagation within boundary layers over sea - comparison of modelling and experimental data

open access: yes, 2022
S.79-83The performance of sensors operating within the marine boundary layer is severely influenced by the actual atmospheric conditions and the sea surface.
Fuchs, H.-H., Essen, H.
core   +1 more source

Average Intensity of SLVGB for Slant Path Propagation in Atmospheric Turbulent

open access: yesResults in Optics, 2021
The physical meaning of propagation characteristics of an (SLVGB) Super Lorentz vortex Gauss beam in a turbulent atmosphere is studied and analyzed. To use the method of Huygens-Fresnel integral. Likewise, to apply the ITU-R turbulence structure constant
Hussein Thary Khamees
doaj   +1 more source

Stratospheric Optical Inter-Platform Links for High Altitude Platforms [PDF]

open access: yes, 2002
Optical propagation simulations for the case of a laser optical link between two stratospheric High Altitude Platforms have been performed. The simulations, together with communications link budget calculations, show that high data rate communications ...
Giggenbach, Dirk   +7 more
core   +1 more source

Simultaneous characterization of propagation within the marine boundary layer at X-, Ka- and W-band

open access: yes, 2022
S.349-354The performance of radar sensors operating within the marine boundary layer is severely influenced by the actual atmospheric conditions, the sea surface and the geometry between radar and reflection point.
Foerster, J., Fuchs, H.-H., Essen, H.
core   +1 more source

Criteria for the assessment of the influence of atmospheric turbulence on wind turbine noise propagation

open access: yesActa Acustica, 2023
This paper investigates the influence of atmospheric turbulence on the propagation of wind turbine noise using an aeroacoustic source model coupled with a parabolic equation propagation model.
Kayser Bill   +2 more
doaj   +1 more source

Extraterrestrial Influences on Remote Sensing in the Earth’s Atmosphere

open access: yesRemote Sensing, 2021
Atmospheric properties have a significant influence on electromagnetic (EM) waves, including the propagation of EM signals used for remote sensing.
Aleksandra Nina   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy