Before revision: lso been used to Sense and respond has been used in control theory for several decades, primarily in closed systems such as refineries where comparisons are made between measurements and desired values, and system settings are adjusted to narrow the gap between the two.
After revision: Sense and respond has been used in control theory for several decades, primarily in closed systems such as refineries where comparisons are made between measurements and desired values, and system settings are adjusted to narrow the gap between the two.