A stochastic process concerned with the times of replacement of components that are replaced as soon as they break down. Suppose a system has a single component, which is replaced immediately when it breaks down. Suppose the jth component has a lifetime Xj. The time, Tj, at which this component breaks down is given by
The sequence T1, T2,…is a renewal process. A useful result is that, if N(t) is the number of breakdowns by time t then
- photon log
- photon polarization
- photon sphere
- photonuclear reaction
- photoperiod
- photoperiodism
- photophore
- photophosphorylation
- photopic vision
- photopolarimeter
- photopolarimeter-radiometer
- photo printer
- photoprotection
- photoreactivation
- photorealism
- photoreceptor
- photoresist
- photorespiration
- photosensitive recording
- photosensitive substance
- photosensitivity
- photoshopped
- photosphere
- photosymbiosis
- photosynthate