Equation Icon  dn βP h3 ∑ (sin uj∕uj)2 ( − t∕τ′ ) Z (t,r) = ---------2 ps--------------------2----2- 1 − e s,j J0 (ksr ). (5.38 ) dT 2πKa s,j (1 + sin(2uj )∕2uj )(γ s + u j)