Cosmologists have spent decades trying to pin down exactly how fast the universe is flying apart and whether that rate is ...

To investigate experimentally the extension of a spring and how it is related to the applied force, and recall that the extension of a spring is directly proportional to the force applied, provided ...

Abstract: In this paper the optimal boundary control problem investigated for linear system which described by diffusion-type equation with fractional time-derivative. The optimal speed problem stated ...