„… , which are described by flow rates (L or V ), compositions (x or y), and temperatures (T ) for each stage …” „… (n) flow in opposite directions. In a rigorous model (cf. Kister (2008)), the set of MESH equations …” „… overall mass balances, 0= L0x0,i(1−φS,i)+VN+1yN+1,iφA,i −V1y1,i−LNxN,i, i= 1, ...,C−1. (2.10) The …”