The anaerobic degradation of gelatin results in a two-phase cumulative biogas production curve, i.e., diauxie behaviour. modified Gompertz model is normally used to fit these curves but due the it would result less accurate representation. Furthermore, this inhibition slows down batch reactors. This study adapted with behaviour and investigate that leads diauxie. Results show can high accuracy ...

Classical growth functions used in animals are nonlinear form. Various numerical methods have been developed to estimate parameters functions. In this paper, the discrete-time stochastic Gompertz model for Adana pigeons is considered. It assumed that parameter time-varying. The time-varying estimation of was made using adaptive Kalman filter (AKF). aim study investigate whether and method handl...

A new four-parameter model called the Marshall-Olkin extended generalized Gompertz distribution is introduced. Its hazard rate function can be constant, increasing, decreasing, upside-down bathtub or bathtub-shaped depending on its parameters. Some mathematical properties of this such as expansion for density function, moments, moment generating quantile mean deviations, residual life, order st...