Basic thermodynamics: state of a system, state variables.
Information has a precise definition as the state of a system.
In physics and engineering dimensionless numbers frequently help to characterize the state of a system.
If the state of a system changes, then it is undergoing a process.
Being able to quickly know the state of a system and diagnose issues when they arise is very important.
Unknown input observers (UIO) are able to estimate perfectly the state of a system, despite of completely unknown input perturbations.
In this way, mining techniques document the current state of a system and produce current-state RBAC models.
Many physicists believe, for example, that quantum mechanics, unlike classical mechanics, does not represent the actual physical state of a system.
In what follows, it will often be necessary to consider infinitesimal changes in the parameters specifying the state of a system.
By its very nature, the second law of thermodynamics is probabilistic, in that its formulation requires a probabilistic description of the state of a system.
Inverse models use observations of the state of a system to estimate the combination of parameters most likely to explain the observed conditions.
