Definition of acupressure : the application of pressure (as with the thumbs or fingertips) to the same discrete points on the body stimulated in acupuncture that is used for its therapeutic effects (such as the relief of tension or pain) â compare shiatsu
The SVI is the volume, in milliliters, occupied by 1 gram of settled activated sludge, and it is a measure of the settling characteristics of the sludge.
Fi = the forecast values of the parameter in question. Oi = the corresponding verifying value (observed or analysed) N = the number of verifying points (grid points or observations) in the verification area. RMSE is a measure of the average error, weighted according to the square of the error. It answers the question, what is the average magnitude of the forecast errors?, but does not indicate the direction of the errors.