Formula for doping and Temperature-dependent mobility model

In the Material database, the T and doping dependent mobility model. The parameters are

mu_max_n, mu_min_n, N_g_n, gamma_n, alpha_n, beta_n, mu_max_p, mu_min_p, N_g_p, gamma_p, alpha_p, beta_p

which are

${\mu }_{n,max},{\mu }_{n,min},N_g,{\gamma }_n,{\alpha }_n,{\beta }_n,{\mu }_{p,max},{\mu }_{p,min},N_g,{\gamma }_p,{\alpha }_p,{\beta }_p$

The mobility are calculated by: 
$B_n=\frac{(({\mu }_{n,max}-{\mu }_{n,min})*|N_{d,a}{|}^{{\gamma }_n})}{({\mu }_{n,max}*N_{g,n}^{{\gamma }_n}+{\mu }_{n,min}*|N_{d,a}{|}^{{\gamma }_n}})$
${\mu }_n=\frac{{\mu }_{n,max}*(T/T_0{)}^{{\beta }_n}}{B_n+(T/T_0{)}^{{\alpha }_n+{\beta }_n}}$