A stretching system to stretch a canvas or material on a frame without the use of stretching pliers and staples. Further provided are compositions and methods of using the compounds herein, and their pharmaceutically acceptable salts for the treatment of disease. Data signals of selected memory cells that are to be read out or written are received by the error correction circuit, checked for errors, and in the case of a detected erroneous data signal, the erroneous data signal is corrected by being inverted and is output. The granular material is then discharged into a continuous mixer having a dynamic input mixing stage, an output dry-to-wet mixing stage, and a transition stage therebetween.