In a yoghurt processing facility, starter culture is added after yoghurts are filled into $900$ g plastic containers with a diameter of $160$ mm and a height of $130$ mm$.$ Then, the yoghurt containers at $20\backslash$deg C are taken to incubation rooms at $44\backslash$deg C to provide the necessary environment for fermentation. Since the incubation period is $3$ hours, calculate the surface temperature of the yoghurt in the yoghurt containers after incubation using the "Single Term Approximation Method". The yoghurt containers will be considered as vertical cylinders. Properties of the yoghurt: thermal conductivity $0\mathrm{.}566$ W$/$m K$,$ Thermal diffusivity $0\mathrm{.}12$x$10-6$ m$2/$ s$,$ its density is $1020$ kg$/$m$3,$ its specific is$1$ is $3\mathrm{.}96$ kJ$/$kg K$.$