the equations in (1) now become 
aay: pel ema ee sr ue AG Bs 
7 Ez aie GS Stn EOIN she 
2 ae ih 
wY , pee _ wy =o } 
ore d . (9) 
In order to solve these equations (9), suppose with Takegani (1934) 
1 = 3 [Ug Bed E4A , 
| (20) 
U, ae Uld, r, Z)Suw AKA i 
a 5 [ab acre ap, ‘ 
tie [via ry Re AAA | (a) 
a i 2 (rr) se ngads 
va) Le Nha a2) 
Next suppose for the wind prone 
Aas ie An aph- 9/2 A)surg a (13) 
od Ape 
Tiv= fr Ay il. Ars hd g ee 
ee ee 
a igi ea (a) 
» (Werte oo 
