wave of small amplitude
21Slow-wave sleep — (SWS), often referred to as deep sleep, consists of stages 3 and 4 of non rapid eye movement sleep, according to the Rechtschaffen Kales (R K) standard of 1968.[1] As of 2008, the American Academy of Sleep Medicine (AASM) has discontinued the use …
22Evanescent wave — Schematic representation of evanescent waves propagating along a metal dielectric interface. The charge density oscillations, when associated with electromagnetic fields, are called surface plasmon polariton waves. The exponential dependence of… …
23Matter wave — This article is about the quantum mechanical concept of all matter having a duality model as a wave. For the ordinary type of wave propagating through material media, see Mechanical wave. In quantum mechanics, a matter wave or de Broglie wave (… …
24Lee wave — The wind flows towards a mountain and produces a first oscillation (A) followed by more waves. the following waves will have lower amplitude because of the natural damping. Lenticular clouds stuck on top of the flow (A) and (B) will appear… …
25Slow wave potential — In neurobiology, a slow wave potential is a depolarization in a myocyte cell which does not cause a contraction or action potential. Slow wave potentials are unstable resting membrane potentials that continuously cycle through depolarization and… …
26Thermal capillary wave — Thermal motion is able to produce capillary waves at the molecular scale. At this scale,gravity and hydrodynamics can be neglected, and only the surface tension contribution isrelevant.Capillary wave theory (CWT) is a classic account of how… …
27delta wave — n a high amplitude electrical rhythm of the brain with a frequency of less than 6 hertz that occurs esp. in deep sleep, in infancy, and in many diseased conditions of the brain called also delta, delta rhythm * * * 1. a small hump occurring on… …
28Potential flow — streamlines around a NACA 0012 airfoil at 11° angle of attack, with upper and lower streamtubes identified. In fluid dynamics, potential flow describes the velocity field as the gradient of a scalar function: the velocity potential. As a result,… …
29sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …
30Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… …
