Abstract Sediment transport simulations face the challenge of accounting for vastly different scales in space and time that cannot be tackled by a unifying approach. Instead, processes are subdivided into microscale at particle level, mesoscale large finite number particles, macroscale computes sediment motion means advection–diffusion equations. The occurring simulated using computational appr...

The development of reliability theory has led to the setting tasks requiring consideration efficiency and functional safety technical objects transport over life cycle. paper demonstrates possibility using universal laws elastic wave describe natural phenomena occurring in complex dynamic systems, on examples solving issues arising interaction rolling stock railway track. accounting time compon...