We propose a protocol for creating moving, robust dispersive shock waves in interacting one-dimensional Bose fluids. The fluid is prepared moving state by phase imprinting and sent against the walls of box trap. demonstrate that thus formed wave oscillates several periods thermal fluctuations. show this large amplitude dynamics universal across whole spectrum interatomic interaction strength, f...

In this paper, we design a fault diagnosis scheme for class of variable coefficient wave equation (an overhead crane system), which is composed an observer and its output error treated as residual signal. When the system in healthy state, signal decays exponentially. Due to existence external disturbance, not zero state without fault. Therefore, further reasonable threshold based on upper bound...