P wave

(redirected from P-wave)
Also found in: Dictionary, Medical, Wikipedia.
Related to P-wave: S-wave, seismic

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.
References in periodicals archive ?
However, relatively strong P-wave arrivals allowed to determine back azimuths directly from the P-waves in this dataset.
85) Figure 3 shows their precise locations of P-wave microseisms at 0.
According to the seismic records and the wavefield snapshots of the model, with reference to kinematics and dynamics characteristics of various types of seismic wave, all kinds of waves can be recognized from the complex seismic wavefield, and they are as follows: A direct P-wave, this direct P-wave is with circular propagation from the source to the surrounding rock.
Figure 6 shows the characteristic linear relationships between S-wave transverse slowness and P-wave compressional slowness of sandstone and mudstone from wells CX565 and Lian150.
Quantitative research regarding the relationship between the P-wave velocity and the mechanical characteristics of rocks is limited.
If only the first motion of the P-wave A(x) is taken into account and assuming that all of the moment tensor components have the same time-dependency, Equation (1) can be simplified as [11-15],
It discusses the topological origin of the edge and surface states in two and three-dimensional systems, theoretical models of the topological states, key properties like Dirac-like spectrum and spin helicity, and representative transport phenomena, including the quantum spin-Hall effect, nonlocal edge transport, backscattering of helical edge and surface states, weak antilocalization, unconventional triplet p-wave superconductivity, topological bound states, and emergent Majorana fermions in Josesphson junctions, as well as superconducting Klein tunneling.
27) found that P-wave dispersion in children with FMF is higher than it is in the healthy controls.
Correlation between p-wave velocity, impact index, slake durability and uniaxial compressive strength.