A system and method for specifying the placement of and managing the placement of objects on a distributed networked grid. A feeder having a rotatable hollow shaft with fingers extending therefrom breaks up the material, which falls onto a vibrating dispersion plate and then into the free fall zone. The stator additionally has two core sections. The artificial saliva may be used to treat xerostomia or oral candidiasis and can be effectively used to prevent or treat complications cased by reduced secretion of saliva, since the artificial saliva is in a physiological range of human saliva and shows adequate antimicrobial activities.