FromScience Daily Initial shock wave speed was estimated at 640 mph. FromWashington Post Finally, because the authors recorded waves travelling in all directions across their array, they were able to account for the contribution of anisotropy to wave speed. FromNature Fast wave speed anomalies appea...
Like a wave in the physical world, in the infinite ocean of the medium which pervades all, so in the world of organisms, in life, an impulse started proceeds onward, at times, may be, with the speed of light, at times, again, so slowly that for ages and ages it seems to stay, ...
The other issue is distinguishing between “mud wave” and “sand wave” in the rock record using seismic geometry.Kenyon et al. (2002b)reported sand wave fields beneath the Loop Current in the Gulf ofMexico. The term “sand wave” has a specific meaning in terms of grain size (>0.2mm...
In the latter case thewavesmay be progressive, in which the crests and troughs appear to travel at a steady speed in a direction at right angles to themselves. Alternatively, they may be standing waves, in which there is no progression. In this case, there is no rise and fall at all ...
A final point to be mentioned is the speed of mental functioning that takes place during REM sleep. “Acceleration of thinking belongs to dreaming as well as to insanity, and to moments of high emotion, of utmost turmoil” (p 162, Maury, 1861). In the medial prefrontal cortex of rats, ...
Understanding when waves will break, wave-breaking onset, is the first step in fully understanding ocean wave breaking. Following a kinematic description of wave breaking (in which breaking occurs when the horizontal fluid velocityuat the crest of a wave is equal to the crest speedC), Stokes17...
According to the study, the attraction parameter ββ in (Eq. (7)) is crucially important in determining the speed of the convergence and how the algorithm behaves, since this parameter characterizes the variations of the global best attraction. A well tuned ββ is of great importance. After...
Associated with the wavespeed v and wavefront direction n→, one has the wavespeed vector v→ as (6.6)v→=vn→(wavespeedvector) In tensor index notations, Eq. (6.6) is written as (6.7)vi=vnii=1,2,3 6.2.1.2 Particle displacement of a generic wave A generic wave is described as a...
In contrast, for the “creeping” case, defined by Hammack (1973) as having a rate of seafloor displacement much less than the tsunami phase speed, the wave profile reflects the time history of seafloor movement rather than the overall displacement of the seafloor. To the extent that these ...
In the limit\({{{\rm{Re}}}\gg 1\)the flow becomes turbulent, while for Ro ≪ 1 the rotational effects are important. In superfluids, the Rossby number can be defined in a similar fashion as in classical fluids, while the physical meaning of the Reynolds number is captured by ...