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: 
<math>
  B_{n} = ((\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}} }