Encyclopedia of Systems Biology

2013 Edition
| Editors: Werner Dubitzky, Olaf Wolkenhauer, Kwang-Hyun Cho, Hiroki Yokota

Periodic Oscillation

  • Tianshou Zhou
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-9863-7_520

Definition

Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples include a swinging pendulum and AC power. The term vibration is sometimes used more narrowly to mean a mechanical oscillation but sometimes is used to be synonymous with “oscillation.” Oscillations occur not only in physical systems but also in biological systems and in human society.

Characteristics

Phase

The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time \( t = 0 \)
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Copyright information

© Springer Science+Business Media, LLC 2013

Authors and Affiliations

  1. 1.School of Mathematics and Computational SciencesSun Yet-Sen UniversityGuangzhouChina