Snowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.nowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.
In configuration management, a baseline is an agreed description of the attributes of a product, at a point in time, which serves as a basis for defining change. A change is a movement from this baseline state to a next state. The identification of significant changes from the baseline state is the central purpose of baseline identification.
Boundary conditions. â¢ When solving the Navier-Stokes. equation and continuity equation, appropriate initial conditions and. boundary conditions need to be. applied. â¢ In the example here, a no-slip. boundary condition is applied at.