“…When conditions, such as H or temperature, change, the new coupling coefficient can be calculated by recognizing that the external Q is a constant. This leads to the following expression for the new coefficient, f3',in terms of the new Q, Q', and the old J3 and Qd n pnew t WL (9) ,..,old flo1d,new W P' WL where Q=QL(l+J+3,)=QL(l+). using Equations 6 and 7.…”