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.
Volcanic Explosivity Index (VEI ) The volcano explosivity index (VEI) is a scale used to measure the intensity of volcano eruptions. It is similar to the Richter and Mercalli scales, which measure the intensity of earthquakes. The VEI measures explosivity, volume of ash (tephra), and the height ash reaches into the atmosphere.