82page

rllstr E= ==uJat 75 (3) Ee+t}q +a rr E E -=. ;7 3 ql^-l ^I+61= ++=g p4d ol zJalu}. oJg 4 € _J uN zl! uJ zlL .!L ' If O -( zlaolz)zl 9+*a+ *a EglzlE +* +q6lzl gE +^lc *EE"l qg6rq * .J "Jq *71+ +.lg ggr.lzl 2l €tr|. "lel Ae _ Q _ge gB, Bts€, E^4 F ql € 6*9 "l rl4. q=4i d^l4 E a-E- 'll E+e+ ^lA++ :-- *444 +'J r* zlEgc 4l - ot* fE +^I"Jq 9ts(peeling) /-r= + Ltls€ ilzl: oJz[=z] * -f,rll E+B +41 r+"J r -."{! ?zl 44 +.q E#T}EI +ra c ral 2-10 =Jeql ggF= trlxl= ea @) q=4i *4 4sgiil.JE =r+.q g.Bql ^L+6I= EI"-JES EA;taql ^I+6I= sI4*E"l + fzl*4le+ Hls6}zl e*=trI. q=4f= 7l r EEql ++6I= gB t+gE rjl 4617l +l + *e"l+. =;+^q vlzlzl9 "Jd +Eql^-l "Jq+= g=de 4lzI q= 4f zI +q6IZl 9zl 9*g ar+o14. =?+^q vlzlzl ed +Ee a=4o * =4 ,J6Izl Aq+6I+. =4ts rl r$l += "l+6I= aE +g ul$ol4. (5) *a 9s +4 ?+r+4 EaSrd"IuI ^I+6I= EleL*Eol 4ez) ql+ql *4ql 4EI+ €.s. H9l zl rjald4.'t}$(room temperature)'$ zl qql "+?+ ^lol7l k}trl. +,4E B= zl qql^]= 23-30T Hgzl tlgql 6tl'o}6}q, 4Eql^] €qd ;<l qg 23Tzl +gql Ell'&+4. rE frlfg &s_zy 25"9 !_tr} *sE fr]ls.4z} €qd+. tr++^l zJ *