An e 



Boe"'^° 1 



B,e-'^i^i 



Aie '^1 



hz- 



d, 



-^ 



B2e-'^2Z2 



A9e'^2Z2 



-^ 



Bne"'^"^" 



. i i n Zn 



Ape 



^ dn 



(n + 1) 



^n + l 



'^n+l Zn+1 



Figure 17. Multilayer liquid model. 



64 



