To run a machine through a single complete operation.

A system of phases through which the working substance passes in an engine, compressor, pump, turbine, power plant, or refrigeration system.

1. A member of the kernel of a boundary homomorphism.

2. A closed path in a graph that does not pass through any vertex more than once and passes through at least three vertices.

3. See <<cyclic permutation>>

1. One complete sequence of values of an alternating quantity.

2. A set of operations that is repeated as a unit.

A periodic movement in a time series.