Mar 01, 2013 The communition experiments were performed in a laboratory scale Wiley Mill (as seen in Fig. 1B). The milling equipment (Wiley Mill, Thomas Scientific, Swedesboro, NJ) used in our study is a variable speed, digitally controlled, direct drive mill that provides continuous variation of cutting speeds (of impeller) from 600 to 1140 rpm with constant torque maintained.
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