Many real-world systems are characteristic of dependence on the past, i.e. their present states not only depend on the current situation, but also on the previous history.
Solar radiation does not only depend on sunshine duration.
The generated emf and current not only depend on temperature but also on dopant concentrations.
Second, arterial lactate concentrations not only depend on lactate production but also on its clearance.
City expansion did not only depend on the number of new inhabitants.
They will not only depend on federal and privately funded aid.
For such systems, the observability does not only depend on the initial conditions, but also on the exciting control used.
The competitiveness of organizations does not only depend on technological innovations, but also on the business model.
The choice of feedstock, spraying process, equipment and processing conditions does not only depend on the resultant tribological properties.
It follows that the interface velocity does not only depend on temperature, but also on transformed fraction.
However, whether they will ever reach broad societal acceptance will not only depend on technical issues alone.
