1. a reciprocal relation between two or more things. 2. a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation).
Downloads from Fluoropolymers as Polymer Processing Aid (PPA) DAIKIN PPA DA-910 is a new generation Polymer Processing Aid based on fluoropolymers, to improve processing of LLDPE and HDPE for demanding film applications.
Save. Sebastien_B/iStock/Getty Images. Additive manufacturing, better known as 3D printing, is the creation of three dimensional objects by adding layer after layer of material. Revolutionary, yet by no means a new technology, 3D printing has been used in manufacturing for almost 20 years.efore printing can start, a virtual design of the object has to be created. This blueprint is stored in a computer-aided design file. If the object is being created from scratch, 3D modeling software is used. However, if the object will be a copy of an already existing object, a 3D scanner produces the CAD file.