Equation Icon  ( 2 ) B (ω, z) = 1 − λ-+-μ-----κT,s--- [C cosh (κ z) + D sinh(κ z)] s λ + 2μκ2T,s − κ2L,s s T,s s T,s κ ν − -L,s-(Ms cosh(κL,sz) + Ns sinh (κL,sz)) + ------∂z𝒯s. (7.13 ) ks λ + μ