to occur in waves

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• Lee waves — In meteorology, lee waves, are atmospheric standing waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered in 1933 by two German glider pilots, Hans Deutschmann and Wolf Hirth, above the …   Wikipedia

• Corrective Waves — A set of stock price movements that occur against the main trend according to the Elliot Wave method of technical analysis. According to the Elliott Wave theory, stock price movements occur in predictable cycles. These movements are broken up… …   Investment dictionary

• Lamb waves — propagate in solid plates. They are elastic waves whose particle motion lies in the plane defined by the plate normal and the direction of wave propagation. In 1917, the English mathematician Horace Lamb published his classic analysis and… …   Wikipedia

• Phase (waves) — Phase in waves is the fraction of a wave cycle which has elapsed relative to an arbitrary point.[1] Contents 1 Formula 2 Phase shift 3 Phase difference …   Wikipedia

• giant a waves — abnormally tall a waves in tracings of the jugular venous pulse; they occur when either inflow resistance to or outflow resistance from the right ventricle is increased or when atrial contractions occur out of phase, during the period the… …   Medical dictionary

• Internal gravity waves — Gravity waves occur at interfaces between high and low density fluids. Most people are familiar with water surface waves, which act between water (as in lakes or oceans) and the air.Where low density water overlies high density water in the ocean …   Wikipedia

• alpha waves — brain waves in the electroencephalogram which have a frequency of 8 to 13 per second; they are typical of the normal person awake and in a quiet resting state and occur principally in the occipital region …   Medical dictionary

• beta waves — brain waves in the electroencephalogram, which have a frequency of 18 to 30 per second; they are typical during periods of intense activity of the nervous system and occur principally in the parietal and frontal regions …   Medical dictionary

• theta waves — brain waves in the electroencephalogram which have a frequency of 4 to 7 per second; they occur mainly in children but also in adults during periods of emotional stress …   Medical dictionary

• plasma — plasmatic /plaz mat ik/, plasmic, adj. /plaz meuh/, n. 1. Anat., Physiol. the liquid part of blood or lymph, as distinguished from the suspended elements. 2. Cell Biol. cytoplasm. 3. whey. 4. a green, faintly translucent chalcedony. 5. Physics. a …   Universalium

• Node (physics) — A standing wave. The red dots are the wave nodes A node is a point along a standing wave where the wave has minimal amplitude. For instance, in a vibrating guitar string, the ends of the string are nodes. By changing the position of the end node… …   Wikipedia