PARAMETER SETTING OF A DYNAMIC EQUATION FOR A PRODUCTION PROCESS WITH PHASE TRANSITION

In the previous studies, we have been analyzing the production process evaluation by utilizing the potential function. We proposed appropriate parameters for a dynamic equation to constrain the phase transition reported in a previous study. The parameters were based on a long experience in production. The rate of return was calculated from the estimates of production orders from September 2014 to September 2016. The parameters of the dynamic equation were empirically obtained from the rate of return data. We confirmed the validity of the parameter setting by applying it to a real production process. There is no research specifying the parameters of the dynamic equation defined by a free energy of Ginzburg-Landau (GL) based on real data. We also report the change in entropy with regard to volatility. Finally, we reported the entropy of three states: a stable state, a state with an assumed phase transition, and a state with a phase transition