  We constructed a model that evolved from a non-equilibrium state to an
equilibrium state. The model only needs two basic coefficients, including
self-similar coefficients and non-equilibrium coefficients. The coefficients of
the model can be obtained directly from real data. The model can well represent
the phenomena of anomalous diffusion, non-Gaussian distribution and so on in
non-equilibrium complex systems. It is important to mention that the model is a
global iterative model that can exhibit statistical physical properties on
multiple time scales, as well as exhibiting long-term memory properties. This
model may be used as a basic model for the research of various non-equilibrium
relaxation process phenomena.
