Equation Icon  r2(L sinh),h V - r = -----------+ re2(H -K) × [ sinh ] (1- e -2(H -K))+ 2(H,h-sin-h),h-+ K + 3K coth + 4(H )2- 4H K - 2(K )2 sinh ,hh ,h ,h ,h ,h ,h 2H -1 - 2e M + O(r ), (18)