PAFF Schematic (IMAGE) Rensselaer Polytechnic Institute Caption A schematic of the PAFF scheme, in which computations are performed on a local œhive of nodal points that move with the tool tip. Credit Rensselaer/Suvranu De Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.