correction for low-velocity layer
51Theodore von Kármán — Infobox Scientist name = box width = image width =150px caption = Von Karman at the Caltech JPL birth date = birth date|1881|05|11 birth place = death date = death date and age|1963|05|06|1881|05|11 death place = residence = citizenship =… …
52Fading — This article is about signal loss in telecommunications. For the poetry book, see Fading (book). For other uses, see Fade (disambiguation). Frequency selective time varying fading causes a cloudy pattern to appear on a spectrogram. Time is shown… …
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