Dental Clinic Comparison Chart: Capacity and Costs for Fixed Clinics, Mobile Clinics and Clinics Using Portable Equipment. * Fixed locations may include a free-standing facility, community health center, hospital, school or other location.
Diffusion is a process leading to equalization of substance concentrations in a system or establishing in a system an equilibrium concentration distribution that results from random migration of the system's elements. Three types of diffusion are distinguished, viz., molecular, Brownian, and turbulent.
Diffusion is a physical process that can beobserved with any type of molecule. For example, when acrystal of dye is placed in water (Fig. 4.5), the dye and wa-ter molecules move in various directions, but their netmovement, which is the sum of their motion, is toward theregion of lower concentration.