A C 980he a C (C We to of it to to U to to by a of In an I. it in of a C of to be at a to a 2 2 0 000 r/a 6 2 N.m 000 r/WM of a in WM a to it is to of to to to a of to of to of In an is 11. Y of of is of of is of we 1995 of in is by a of is 00 V of 2 of to be 00 A at a a of of a of of of to a of is 0 pH at l it is to of .5 pH 5 WM is is we a WM to In to of l(a) is of Z C 00 V. u, Ev w of on of , V, W. l(b) by eV ew eg of 5 2(a) is an of of 00 As 2(a), is by 2(b) by of WM of of at in of of by is a in C to be in to I a of LL a 92 U E v W V b) 1. V, , V, I,, I,, I, n 3 E s U E V . I, I I ..... I ........ I ........ I ....... I I 0 1 2 3 (a) 2(b) of 2. of V of to 111. Y he by a is of is it is to of we of LL in LL l] 2]-[4]. 3 is of of C of by A is of to of LL so as to By of LL of to A. of of he we a we of of by LL as 4 to of of to 3], so in is a , i) A of ,) is by a CO is so as to of is by of D V/F CO 93 r 1 I . 3. A C 4. of to is a of is to a in is in OM it is D/A OM to is so as to of by , LL is in " up to as to 3], a as at at 00 r/at 0 000 r/m 000 r/Of we to In so is by it is to 5 an of 5, As 5, is by is no it is CO is We , by B. LL as is 6. A 94 ) 5. of of ( 500 A f 1 6. of of of LL is to to . of is a of ;, e;), is by i , - ; , = d - ; , + ; , = d } (1) * a of of is d = 8; - 8,. we d as of LL of is is to is on LL in as By of we is is 0 000 r/t *- I I I I 0 7. of 8OM's U "1 t To To OM's D/A To 8. of 000 r/7(a) a of 7, it is of C. of by LL is is of is by of of is as 8. As 8, of a is of is by 95 of RM’s 8, of 18. of RM is by by OM’s in it is to by , of by of is to be to a As of is 00 A of 5 to by a is A. O 1, 3 as 9(a). 10 is of 11 is of , is C of is to of of to WM of 10 A. B. ne of be 9(b), of is it is of If of o , of o = E/Io is by s(~o + L~) + (~o + L~) + o~1 20 = * (2) 1 + f of 1, we 1 = E/11 of of 21 is by s( + S~~ + + s~z1 l+ (3) 0 1 10. 10, a3 a4 by (4) L (a) of b) of of 9. of of a1 is of As lO(a), we by a1 of 100We of a2 of - C - L1 it no 1. a3 is of 1O(c) a u3 of to , Lo 1. a O 1, L1 As 10(d), a4 is By we in 5 WM C. 11 is be by of ll(a) a of O = 50R = 1Q = 20of 000 of ll(b) 5 by V. he a C 96 a,=~ .) (a) ’ q= -q=w 3d d (b) 100/~H, 7 1 (c) 100 % -.*=l;m@ l+ d I (d) 100 710. of o, of is WM of of LL to of a to of (1) it of is by WM of (2) LL is It (3) is of (a) 50 (a) I ~4~~,1