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P wave

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P wave

[′pē ‚wāv]
(geophysics)
A body wave that can pass through all layers of the earth. It is fastest of all seismic waves, traveling at a velocity of 3-4 miles (5-7 kilometers) per second in the crust and 5-6 miles (8-9 kilometers) per second in the upper mantle. Also known as compressional wave; longitudinal wave; primary wave.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
The mean values of demographic parameters, p-wave duration and dispersion, blood pressure and laboratory measurements of the study group are shown in Table 1.
In the case where the P-wave arrives vertically to the surface [R.sub.e](t,r)=2.
P-wave velocity test for assessment of geotechnical properties of some rock materials; Indian Academy of Sciences.
Schmidt rebound number yields high correlation coefcients with uniaxial compressive strength, bending strength, point load strength index, shore hardness and P-wave velocity for Limestone, Travertine and Marble rocks collected from various locations in Turkey (Guney et al., 2005).
It is characterized by a progressive slowing of successive SA node-originated impulses in the AV node (progressive prolongation of the PR interval) until one impulse is not conducted at all (no QRS following the P-wave) (Sauer, 2013).
The effects of surgical repair on P-wave dispersion in children with secundum atrial septal defect.
In this study 6 seismic refraction profiles of P-waves and S-wave velocity, 4 Down-hole seismic profiles of P-wave and S-wave velocity and 22 electrical resistivity sounding points with Schulmberger-Weener array have been taken.
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