Results 31 to 40 of about 711,225 (168)
Modeling the Development of Plasmasphere Ducts and Irregularities With SAMI3/WACCM‐X
We show that atmospheric gravity waves can generate plasma ducts and irregularities in the plasmasphere using the coupled SAMI3/WACCM‐X model. We find the equatorial electron density is irregular as a function of longitude which is consistent with CRRES ...
J. D. Huba, H.‐L. Liu
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The anomalous propagation conditions, particularly the tropospheric ducts, severely impact the regular operation and performance evaluation of radio devices in the atmospheric boundary layer.
Xiaozhou Liu +3 more
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Ducting Approach to Atmospheric Sound Propagation [PDF]
The velocity profile V=V0/1+Az+Bz2)12 is investigated for nonfocus situations. When A is negative, sound rays are refracted back to the ground and are reflected. When A is positive, sound rays are refracted away from the ground and a shadow zone is formed.
openaire +1 more source
Multiscale Decomposition Prediction of Propagation Loss in Oceanic Tropospheric Ducts
The oceanic tropospheric duct is a structure with an abnormal atmospheric refractive index. This structure severely affects the remote sensing detection capability of electromagnetic systems designed for an environment with normal atmospheric refraction.
Mingxia Dang +6 more
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Prediction and control of sound propagation in turbofan engine bypass ducts [PDF]
This thesis contains original research into the propagation of sound in acoustically lined ductswith flow. The motivation for this work is the requirement to predict the sound attenuation ofacoustic liners in the bypass duct of modern turbofan ...
Brooks, Christopher James
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Using intelligent optimization algorithms to retrieve atmospheric duct parameters by monitoring automatic identification system (AIS) signals at sea is a new passive remote sensing technology for atmospheric ducts.
Li-Feng Huang +7 more
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The scattering of sound waves in two-dimensional ducts with discontinuities in height and material property [PDF]
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Eigen-mode matching techniques offer a versatile approach for solving acoustic scattering problems in ducts.
Warren, Daniel
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University of Arizona, Institute of Atmospheric Physics, Progress Report No. 1
This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Braham, Roscoe R., Jr.
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University of Arizona, Institute of Atmospheric Physics, Progress Report No. 4
This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Kassander, A. Richard, Jr.
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University of Arizona, Institute of Atmospheric Physics, Progress Report No. 3
This title from the Institute of Atmospheric Physics Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona.
Braham, Roscoe R., Jr.
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