Results 231 to 240 of about 805,540 (271)

Seismoacoustic monitoring of eastern mediterranean earthquakes toward a tsunami early warning system for Egypt. [PDF]

Sci Rep
Elbehiri HS, Hara T, Hamama I, Nishikawa Y, Yamamoto MY.   +4 more
europepmc   +1 more source

Biogenic volatile organic compound emission characteristics of dominant tree species in temperate broad-leaved Korean pine forests in Northeast China. [PDF]

Front Plant Sci
Pei D, Wang A, Wu J.
europepmc   +1 more source

Hydrogen fuel production from CO₂/CH₄ mixture using a novel type of an atmospheric pressure microwave (2.45 GHz) plasma source. [PDF]

Sci Rep
Czylkowski D, Hrycak B, Miotk R, Dors M, Jasiński M.   +4 more
europepmc   +1 more source

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Digital Maps of Atmospheric Refractivity and Atmospheric Ducts Based on a Meteorological Observation Datasets

IEEE Transactions on Antennas and Propagation, 2022
Xiaojing Hao, Qingliang Li, Wen Yi
exaly   +2 more sources

FNN-Based Prediction of Wireless Channel with Atmospheric Duct

ICC 2021 - IEEE International Conference on Communications, 2021
This paper proposes solutions to channel prediction with atmospheric duct based on feedforward neural network (FNN) modeling. Specifically, FNN-based model is to produce accurate prediction by directly learning from large database rather than depending on any assumption.
Hanzhong Zhang, Ting Zhou, Tianheng Xu, Yuzhen Wang, Honglin Hu   +4 more
openaire   +2 more sources

On atmospheric humidity and acoustic ducts

The Journal of the Acoustical Society of America, 2018
The development of various propagation ducting phenomena (elevated or surface) has been studied extensively for electromagnetic and electro-optical wave propagation. The influence of changes in temperature, pressure, and humidity gradients on the strength and geometry of the duct in the electromagnetic propagation problem is well-documented, and there ...
Joseph F. Vignola, Diego Turo, John Judge, Teresa J. Ryan   +3 more
openaire   +1 more source

The PE solution of natural waveguides in atmosphere: ducts and elevated ducts

Proceedings of MELECON '94. Mediterranean Electrotechnical Conference, 2002
The propagation phenomena through 2D surface duct-to-elevated duct transition is described in terms of parabolic equation (PE) method. The split step marching solution of the PE method is first compared with the reference solutions obtained from Helmholtz wave equation in longitudinally invariant surface duct problem and the excellent agreement between
O. Ercan, L. Sevgi
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The effect of atmospheric ducts on the propagation of AIS signals

Australian Journal of Electrical and Electronics Engineering, 2019
Electromagnetic wave propagates abnormally under atmospheric duct conditions. It is very important to study the influence of atmospheric duct on the radio propagation of the shipborne automatic ide...
Wenlong Tang, Hao Cha
exaly   +2 more sources

Doppler ducting of atmospheric gravity waves

Journal of Geophysical Research: Atmospheres, 1986
Atmospheric gravity waves are subject to horizontal ducting in a stably stratified atmosphere that contains levels of wind maximum or minimum, quite apart from any superimposed consequences of vertical variation of stability and quite apart from the existence or otherwise of critical levels.
G. Chimonas, C. O. Hines
openaire   +1 more source