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Systematic Evaluation of Strain Rate and Environmental Conditions Effects on Stress Corrosion Cracking of an Al-Cu Alloy. [PDF]
Materials (Basel)Lorenzi S +6 more
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Rising flood risks in semiarid South Asia driven by changing intraseasonal oscillations under global warming. [PDF]
Sci AdvXie J +6 more
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Beam Criterion for Atmospheric Propagation
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007A criterion is introduced for testing whether a beam retains its beam-like form after it propagates any particular distance through the turbulent atmosphere. The criterion applies to monochromatic as well as to partially coherent beams and is illustrated by examples.
Korotkova, Olga, Wolf, Emil
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Propagation of Sound in a Turbulent Atmosphere
The Journal of the Acoustical Society of America, 1970Applying a perturbation technique to the correct form of the equation for the acoustic pressure field in a viscous turbulent atmosphere yields the power spectra for the amplitude and phase fluctuations of a propagating plane wave. The development includes the effects of absorption and removes the restrictions on wavenumber that previously prevented ...
Clifford, S. F., Brown, E. H.
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Review of noise propagation in the atmosphere
The Journal of the Acoustical Society of America, 1977A general review is presented of most areas of sound-propagation outdoors that are of interest for the control of community noise. These areas are geometrical spreading, atmospheric absorption, ground effect, (near horizontal propagation in a homogenous atmosphere close to flat ground), refraction, the effect of atmospheric turbulence, and the effect ...
J. E. Piercy +2 more
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Atmospheric Signal Propagation
2017Global navigation satellite system (GNSS ) satellites emit signals that propagate as electromagnetic waves through space to the receivers which are located on or near the Earth’s surface or on other satellites. Thereby, electromagnetic waves travel through the ionosphere and the neutral atmosphere (troposphere) which causes signals to be delayed ...
Hobiger, Thomas, Jakowski, Norbert
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Infrared Physics, 1985
Abstract The state-of-the-art of IR atmospheric propagation modelling — important to both scientific and practical applications of IR radiation—is reviewed, based mainly on experimental work performed at the FfO. The main improvements of transmission models rely on the results of measurements, analysis and modelling of aerosol and other atmospheric ...
D.H. Höhn, W. Steffens, A. Kohnle
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Abstract The state-of-the-art of IR atmospheric propagation modelling — important to both scientific and practical applications of IR radiation—is reviewed, based mainly on experimental work performed at the FfO. The main improvements of transmission models rely on the results of measurements, analysis and modelling of aerosol and other atmospheric ...
D.H. Höhn, W. Steffens, A. Kohnle
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Propagation in the earth's atmosphere
IEEE Transactions on Antennas and Propagation, 1969Analytical expressions obtained from electromagnetic field theory are used to plot propagated ray paths as functions of frequency and launch angle. From these plots the dispersive effects are predicted for signals transmitted between any two selected points.
J. Cato +5 more
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