phase d'oscillation
41Parasitic oscillation — is an undesirable oscillation caused by feedback. The problem occurs notably in RF [1], audio, and other electronic amplifiers[2] as well as in digital signal processing.[3] It is one of the fundamental issues addressed by control theory.[4] …
42Neural oscillation — is rhythmic or repetitive neural activity in the central nervous system. Neural tissue can generate oscillatory activity in many ways, driven either by mechanisms localized within individual neurons or by interactions between neurons. In… …
43North Pacific Oscillation — The NPO pattern. The North Pacific Oscillation (NPO) is a teleconnection pattern first described by Walker and Bliss[1] and characterized by a north south seesaw in sea level pressure over the North Pacific. Rogers, using surface atmospheric… …
44Oscillator phase noise — For more general information, see Phase noise. Oscillators inherently produce high levels of phase noise. That noise increases at frequencies close to the oscillation frequency or its harmonics. With the noise being close to the oscillation… …
45Atlantic Multidecadal Oscillation — The Atlantic multidecadal oscillation (AMO) is a mode of natural variability occurring in the North Atlantic Ocean and which has its principle expression in the sea surface temperature (SST) field. While there is some support for this mode in… …
46Atlantic Multidecadal Oscillation — AMO zwischen 1856 und 2008. Der Verlauf der ACE von 1850 bis 2007 korreliert sehr gut …
47Madden-Julian oscillation — The Madden Julian Oscillation (MJO) is an equatorial traveling pattern of anomalous rainfall that is planetary in scale. The mechanism and cause of the MJO is as yet not well understood and is a subject of ongoing study.The MJO is characterized… …
48El Niño-Southern Oscillation — El Niño und die Southern Oscillation (ENSO) beschreiben ein komplex gekoppeltes Zirkulationssystem von Atmosphäre und Ozean im Pazifik. El Niño steht dabei eher für die ozeanischen Zusammenhänge, während die Südliche Oszillation bzw. Southern… …
49North Atlantic oscillation — For the rock band, see North Atlantic Oscillation (band). The North Atlantic oscillation (NAO) is a climatic phenomenon in the North Atlantic Ocean of fluctuations in the difference of atmospheric pressure at sea level between the Icelandic low… …
50Quasi-biennial oscillation — The QBO (quasi biennial oscillation) is a quasi periodic oscillation of the equatorial zonal wind between easterlies and westerlies in the tropical stratosphere with a mean period of 28 to 29 months. The alternating wind regimes develop at the… …
