Free Access
%PDF-1.6 % 7 0 obj <> endobj xref 7 11 0000000016 00000 n 0000000678 00000 n 0000000753 00000 n 0000000874 00000 n 0000001090 00000 n 0000001221 00000 n 0000001356 00000 n 0000001398 00000 n 0000028038 00000 n 0000028096 00000 n 0000000516 00000 n trailer <<942A57F3B4D4B24B946920389EA54262>]>> startxref 0 %%EOF 17 0 obj <>stream xb`````gy $P0i ?8DrifVo.6mYFԾ Z endstream endobj 8 0 obj <> endobj 9 0 obj <>/Encoding<>>>>> endobj 10 0 obj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/Page>> endobj 11 0 obj <>stream H*2PHbw.=cC#K L, M sr \ gd endstream endobj 12 0 obj <> endobj 13 0 obj <> endobj 14 0 obj <>>>/Type/XObject/BBox[0 0 612 792]/PTEX.FileName(./Fig_1.pdf)/FormType 1>>stream x;-9%(jWwm+C>Bƛ2> ~]FQI& 2 ?G:j[;\{џ9\*ExeoJʹ{7O$s޲]oÑFD-rJlߜϊʎ-3jmƷo|x$ k㇫|R^dʣT QE!IP(:.JtUxI~bTb-{V%"P?@cI|j$A'OR:ȵu#2*#|>-\뽷Z;K7 s X~`]DJ5J~-t̸)*K+04D" K`֮{er3>Uw¾&:?m~˃+ܷzE~ ?wcۺOН,AJbX^sd(x^R,!"M g$M^\:Ztޱ hDII6lwOmwPa"e4VEcnJet\PFK(Nt٦PQ[cИ*97r%ϳo@i u%v=Z$BI{%1,?8B~mn)Ooa&(#ˏ4%Yf n`$RIc뎙B{94W+$EdZ}+,>ˎ퉙ځJeFU~%*i;d}_t<=y9rWqzzh}4ཥsѦu涙Zg%!^]E}UzX?EFkt~]<֚x^rvjgh)K,o2$rF?y` [:)|ձmm#e4GzVYuz$r=wsRȱ>ϑcc1=Z\wnkO6e ))KatK"OE?wbt\S!;\g|W`Iuv%3qrl1Ep]Ek#iڹ-i.Q1E=)ږm/ܖF+d]eBd;i? \YH5Ix"{ˢkXE^J#LY巅uBĬ5>%ZZ^RVJ|?_:[gG2i]y"WdR]WwYlKB5KkzUtgntϟ|_z~Vz1WsJ}/ͭϑcy^/;_Ϸc/v_ˋ~4j#=-3C㸾I$ >kY, %ct/z3ҋ?.?\L8S;5c_#J^fs G_닶[@JVK}ѻԗsܷk=nȟ[^,sshs=Υmm^EVԳ$w{3!' M^CӔ~gx7y]ZQ#Ҳk#\P}-3͖h+IevYfm+Z<)(YI}9a=3HЩ_יv}yX?zwƘUYW-2ϕLm'zϲWp76%BcAbzr~QLH ɱ,En<-࿒܏G8dG;ò4e{JBsy3+wzhZ!=Gi_=Bc#2KH${En}Y%$ұt^eٝeZ%\l{hMX4q[M+Xa3!hQS1uq9SScϱ>G#[+}ntgKNo^й}=2nq]}GH۾<T} Ahs=jߛnˎ*WumlӾXzW;i\B:>ۈO?cn{Y8ҲFM'N+'m~nS̫m1Iݛr5<-~WQZ]$A$ 4X9Ҵ2⪎g槼+?!zgcU]MD?(=.{?4Qa-J#zQCr,#{4\o$fkr=WӲhLԏtkv6,++Ys$zBM/&/L;SGiڲIugiQe٘%ICl={ׄ-I/;7$W ռγ;_I#OegcXvyxvYvI}Aۖ` mZеAVO{:j.ˍm z_N/ڞ5KtWcn{r]v->\XN-Ztz]X~?Ǭ+\[ˮ!J};*s4q/[mˮ!o㼥epˮ4_tuq5Di;9ck-F?w]$e\]^c5nHX, - x忓5>YS,(U~e'qLE~K,}x?`[As2fyܴ 9+zWN d%hk椋].93šJϓR!q`УkP)<)[(R)B$BaBIPVB1E 9-㕖aբSߢcگ\Έ@$~D䶶ͼs? l-M@*wT:(--:7@eAs RT+_?ٲx0s&j\EÕa\Fje+~J Zne[Iԋ1_{2\0~+lr&*!oKW A,(>'WI\[HJ JuC]D߿+m)^ "ȝѫ<uMd dz cq^E,;Tү$=)AuW/.ReՑ?p}<ǧ6qO~{sYu~ZYo~j/cwܕǚTi}ORt*_àFO(SHzs5'K>B?7 c5JTt4.AC"yVyFxl馺"uƯ4ǬCpW`_趉\"!(Vo/ ,l|?FʟA58o{JȕKQ kz;V?f}_ TZ9, "KGe˸2[]ڸ{^zټvIb,\NW{ o}ʗözy A2?nQ_ǦKS}0]eZeW0ۿdfic%cYcOhȕ%.W]W~.X_)91O(Q} BjR2|JK2ƣFW틒 a}=&yF:}/%K XPi=Yv%$o~b1u'/|-g8#<:[ͻ7̳cq_K>i5w|%X_o}{k}=#q .1Zlǵ[5vٛ7K-_]=V12P,몱ryizsxfo4zݹ<*ׇŚ֧okGopMsX6B֬͞~&װ^f6?zWKuiz}NQg˨XVs!{^luf/;{^9rɥv0w?fvͲG_g:iqgp MǬOn{:"O՟Gyiz]#ܴ-hq~I۟޺Ș~kz{ѷ8p> uC.8O8G?jG%mzi-)kgۗ5E~ӷw9c':QM ,CĭdYQwK;m*5W+s+ċ9QIK*GPd Y&{ǺNVΞ>8c4^-+ڣ=j3oӸ'Z<2ovKR{iҎkwrҧ=y:`33uh3L5t#D P>xlx\Gi?o]N{׽ڌc델'Nɓ?L?pdžʽq?C)C\}O]RS^UxxUF <6WʍјO5ƃ>57swr9+=n=~ؔ&M/DcrnK3/k&=mH˿$ϓ[~*;C(IJ|z]5$+4@ם4[݆|FfOL2rft;HJS\4^=p)jL+kC 6*_pcl($1v e^fV;yh5<ϽVy^*4zeK_q VJ?LEfH>렍-<*a-G?ÙgE,(RrU|ؐϳ!1QhLYq"z^ca#Yv'Y}0z=#FYΫ(M/DcrH1Ij^R&( x?B'y. hI<zazN$E$~n\D_Ʀ?Z:}Û3O^DrǼj,SPuV헸|޼g>Ǵc%ދaS}UGgЧʖFffPɧNԶS7-l?ǁ8m?gl ǷN?|STLfjvmmЩNvt5[:TG3֭ȸT1GeOs7w]F#%,aiچt'}%7LnO۳oodžb"C*zgy7"ʀ|g,@OW4g8c%aoCA6VFÛKVv|׀u>=dk}ǜ =ve݇i/*˼s͎ꨛޏ1+/'ǘԞMmTq)5pdȅf12x㊥Iחc,+[~b,O˅7zmͺuSwC95~|391/v\^Z1:)js\P6{_ҥv)4,M^ s;Q[SE汧\\0qo*ayo'j^s:{^UܙْGڕ;jr q*$Z$>G=93ۭl5Ke ;=n{c%,cEvʑT*GyO̍Z5|XO/ ^9]yZw{k6 cw>NPƑ2%">GRm^%Aeڇ9[3aYq^b9zf*;tC|9y{ɐ+my*ݧ9rlvaP]3ZQE7G8Ca$㎍#)o%[GS|e34cwlvеncoXǻgEP)^Iy2.},q`l5v1vGqlr=pTvx,w>zplE?0[iQIOjz$6+Ҩ$ÿsvT|!㳍﨏m'0h%Zbe>x_T yut[1}!` 15Qں,QQ13#ynq)ysa_cjM{E,TZ,KfXXtijkF`$/ڂDD8oYcyc~Ӱi}c&۲wz.ץnX*ɻku7ی_]wضR\h\FA < vmU[t#º<` š8FRypU(ڴ'ʖ3N-[LÖn;Ui&fTܨz3mY95a-+|yp\fuT0kd9R`fޗ1Y`H0e168(I<K69;2-Y͎Jk'v!Y=eBڊoje=v GwEgFx;@ #`d'CrMv,>$u,W~.=#bNL -x "|b+Z;reXݪMw-3>!mI΄c=Iֻ۰fG]y"aIFے7{wڭNrNqfrL;D)s3vtsuzS\v9iڭHMD.m7K\98~{1OUH:ޓ~r4'UgjWl֪(;7'w?RJDtI *$Ϥ4^/S͹Ԧ=IJX(XSl^jCZ)ߣi:Ly 3:|pJ{iO<לWX맺8wbJ+GZ98bW9$Z/6N+Q_NKD4oբuu(bbY^y#+oyϑbUFm x 4GS6+νǐѵ%Wu~2PKi9=v77CyrtΎwQwRO3AoeVF2E\Sv2d $Аh(ߧ<[dJL^q%\jZfqєskDݭ%G.2JH\S sB`Cx@H2)/O zXB$]:p&7ep(8h*I:DqdtE+HF]؃(h*OI5+KK 6p5zrNh,0s,!E Oۼn xC7FYb;1Q? \9OߘЫ<% [H1tΠJR4bụWY 1!#\aw&jaw^r9DE${);%2Y1g_xH3G'~^%.ZC .A6CƨAR]$b>ݦZ U>Q+ษ^*m^fGtTCO$[7>4eFiDiEOU⤋5H=RIM6c8ie.3|ǎcro 虴MmzRt85Ɓ_3tQ8t1sUic C[Vxv\,|.O0 |Ck"~'xH+q:J:H)jEL>JI/YEO#~*Sa!6ZJZ`%=QxTt$jHc C{7e?cE惘,L'xw oKM^RWdʰ򥃩$`Zsw~,r&>N7q {#@k|(6JvlvI+Siu`j $C7M fpc*˽BwxxIs:y|2dS G9irT>b<{о2,Nk2%҉NUg>?jjȬͼJtS?@ՠ}me*Z煼D&0eM5%@4# e>\uEk-h_ʃXA 6Qѫ(Iͦ45dfުD;n_¹$Zŝ>#VÛqr.1zP ŗ,Jо4d[оB4F a,E4ħG嵪QN;l╇W'Sz QFWAd8ho*3NEߩvp=$\~ԪD9m>㕫(OV54ι|=ʒVѓ"4h?12 12<=7~ʾ:ݠqʕtT\I+c\sXzn.!L+ݕfv918ݔ%qOSZ-o2~%"'_ܠ,cpO̊щ%ݲoF;VyX-PRU.O%jM3?-k9ctN\Wka;g⧇s?uA\Iu#]"?{^jwȊLSyҕ O&yn=׈Ν2t)>29=wC"%O$YL=fg~5]#c-ϫIg]rʹ7C^e!~)#J۰pÓK"e>ҩ|[½ ?y\S{J}vOӔ}2dZYXCګ,קg=d .lkMvc^3WJZ5Ws]Ҥ7lXs2H'GDTO%Sqӏq$ͼ5`T4 >ɕOHQɖy7ce4F_,Gs_]@5Es+⷇"vqHs)urXur zs1NϝyD|S>}~._OƄQ4֤sO4%b*[ŞK|V)ZSCiQ;%s#Ty`N`YeIϝ<<&y{{H\OJ'0iE_w?GR~Q)j\.AO}sc]G#{[בcjsRF$gR[#9Mo A?k$蜕…RpL1,˼6!:{D- saڗL.Jv:NJOs=_xmF};HLѲΓ'?d'3匭 k$h'^eQ%J2TG%Ǚʃ<4. ~A}毑L*H>CܓdwpމCGjj=$rnKu:!1Fԗ)2\﹋Y.qXi'%{h1҉x ٻ!-L4DH$QC[*EN@׉4ħ?_僒Mu !K"Fֽl=!-['tg:8l?J5glFlx:!w؜:a(O'LSPE9Lg5.":O6f3P3jHYyR[zEw@M!h¨JC֤n !ʦ#R;ZIVt#tbrhEKH|R8tYMIԐ6Q4oZB)`s?NKPCֿXkhJM"]GIV4Y*()y$1%m5BEtQc*#0ů)IiYy-~]&M45n5"Ӵt5*=qiZ6 )ZQ"K.[WD7KzYСWHQ*EIn :bHF gmMNAswLSyt3}>3rCDrё"o!kж*;]!"eH׸іViUIgCސl<6C;:f1o9Wt\qu')ڶ1-%٘_C־һry}'RiMvoj:tS zIGvFHGT_mMsQsΞ/Lc9'su t\?9,Lhi?c)1Ή?|vG:HoՎ3kv=$2#w_~3WAo}H.7S1VҦS)Tz~L;C"e>aй4u.|Dm!kh^3ldA毱-f=OIB ָъH;5c%ՉNԧwDl2}}ڹkhbĦkĦi 9Wn,\C&esM#ׇ< [^D+n81Ӈ?-oNya:%x HLҩlU(󎔩u=t|Ir?Cޤ@wb!SxG{[Lz*3݊$~GS7񞠨{z))ykDhҩ{ z+^Ey4`wb>?"iYlStWBOъ0^-e145Ԏ߈r_@AĜ@!q@c'jEr"\#fDkg5qytW~jBf :"ݮwF% C/ޘb y5q'Yt_#AE>a/$7cZԕ#5F-2v=[-mi[flA$X8.:V.)-oo::t>O~wƏsdkĨxn ٔ?J=мCh֌A[mI8KC9|`B sѝ?c1j̩%8PtKe]9҃*j35LQT>,z4'H&CoSxKLVƓ.L=;NI*ګtnBk82FF}PWC:;C YGr  )+x#EӯJ~W:_28/8" ^FJJ2It[#LMgקm>9r|h>1?PX.A6E(-8ԝJw j^|Z2^jgGޜ=#i~*w'qNZVkn xk]UgN̘c~mYqh@8i!4jkh$Z25$fC39kW=e]c0׍9Χ@3LG$ƥ>1JGl[5.40?╇DK?C5=CB_O-C*K^H1S?h.(/ktitjzY∿ƨLCoh3Op(UD4o^Jg|p;HwJTwʽO;!c)6$]`2ؤ@5!k햷gyC\oIfiFƘR6!nAfK?GBT1H5G֡%213PW}({ʼiAS5P'm= ys[RMs#4WǬ9Q@*h,Wre:#O벲Շ_0 Z*.3#S6ƪgf 2 P)U F>:Y5U" H ;?҇s"r $*߿2#5G~>3PhʂʒG˔cr*1VCq֖GdicMjiv̙c6"#ԅg2|]h';x8@V$SF8@R^*)kp̵%\\2 z /h@d!< e"P1kyE8 ;&PGf`;Hw4xyHAj PS6U ١whF  V/]8Hh@]9GLDWdL|hNL _0t* L L ֌jN\#y4&:PdQH' G G#F ؈D ;VPl;8 ;V}Fxm ^_A q."ԠV)]b>!#Ġ1)W?c#r1(AyF9|E jvlD ;nTm7(xA#ԠA3ȼw v`P_j(T+bNFS+H7/ 2+(oDy78A% ^.D%ț!zJPa濣߶ %w Nn )(XAMW#uKyXA:Vd;VP6(y j(c\@]# jPq8YNe 9Az DbP`GԠ 㖏Pz1䵙^w =]B"11PX:AZq`ua1F kXA}."6XAZ oXA 3t( cپg4 +(Lo'VPcq2F38A⽣u!3N HATzA 2 VPc3#d.&=+VO\+%Ȉ0^-%w Y*BD +J]R FPuH ;VP?  J㷌.%("Zh E{_F xoL$!` uaF1~ SXBTG@H%D[C#$;c z&Pc !0c,!? ;3&$t QHBR(ĠHQȼ/B~(^kDT! ^pt)d!t[(_ЅB]e!1#ԏ" 1_ze2^Qh M(D]4"U}:џKO8D⽣ ,B!h>b.< F tU0/CډH;a Qv#CЖ(o]mv}Ow"6B(H6d_(xDF8`6ezpAL!6GD}$2^!qJ-7L"b}JDGDLs? TD{G&$d"YUB& ;2&+]DOdLbF'[jOPZ v>'z3 |>l#f:o^ |,D'Mt"щFPGx>2)>_qFgrBU+ "EH1- "u-Z("qbĸ4__Eܵ;zbXP]ƮlV|E4@X?w9_$~s_P(rG1bK#hQƢ}!=P|E9 &H7=+Q'I]g)M8G ~Q #ysw#og8" ‘{E#Gw#Hgk@82 ‘B8PG#eۨЍ(G>&ƑOr4qbn՗|G;RԻЎ/࿢18##?B;ю:=>D/8Gͨ4БKg _qu/8G8cNq_|"sp7 %aP0CĀHi# Ah!Rt( $J )8HyMԐLxIFa$#)00bs/I䵁8IAJRE"#%yB^Ob}GJz=#%UKzRclHIsd;HISW$DV(I}H)$١I2))o_|5d&%-$9PP]E!(ԄQC& '?cM}9{EN3h;Г&;~Df`'Wح;)v@OIaѷ6,_' WI(+JWJ7[/JT{!y_o&%ţ c)(K,M(K$nbVYV[,|+֩CdӵD8|W []O^a/{)oeK%?^2 {I'+B% |{Iwz ?^b, .uhAԏ{^~nkh<7o>ȮևY6a7Mq 9e;vajxa7 ve 1̚+& 8 MD~B4$݄lBnB&6Igm҉nš!&'mIp )MMI6iԦལ6)*DMjS6!0LMkR+̦࿣693QMAm2n@m2@m2 j|B2oXMCmB+ 3S濠6 GMjMCl"bxxMk'kzk &Yk &ĨD^Npa5 )jN#["gПHN I`!9ɉ Fr"i\i'> =ddO4c"R%o4ΈAuF *hP JA g; >#'y_Р񍆾4ЗcB1]vL#ңt}$̨$aF3*ڭ[j#c{}A⮟Q< bxxQ^^W5/JkE&)VyHQv% ~cD'Bb/e C+t(%7tB؂EyP9:#{ɼwt(ݸ:nd *PbBO#BTcD5w'R281lD)^[8QG&(sD#Jw] ;RUsR;R<=B'HHQ EWĉBeibDfPtO8Q#E9HQ)J-Dw(E#JQ"ˆ +FT>4;tA^1*)D ?Jw(O)A 9Jw(!(OFI7ʼ/Q\??ƌ"1YKDBQU!Ĩ#Fu+vty`OY{ō]L7jF)n[QnTFQQ:nTFF=#^/Q8jNEĨ6bՎ@_qoW(푄=P%ʚ8QXMԊcE#'(yw(_V+*XQh6ŷ+*xXQRi%;JWsJTD[ce(KhQEYbQ=1J{ !F1#h쮄 \Q#F)KQGi0t(Ԩƍ71{G¼/c'wĨzxQ7c(ޱR ߿D=Dr{*3laDt[QCy=%>[O2 >LPPLJt(|Cu |.d2JDb<yP͈^F)hv&g<Ƅ1DŽBLm<( }AtAE?Ѡ(c4(?F2 X7‚jĥ/a JYw4(ź J0B ;eidH ;&ab'yF&(s1t 9 Q8 Pbn$r&:THQʃ$(D*(ae;J4f)Q>F7QAgxJ{[JFBԏp{Gm8Pl9"cy(Q]8ĉdƤcE)KXQ`Eq'.ޏq D1(QA),ެ̳CtP{LJF~JgПP< :O jސ=\r8D}bFy! w(5J14 ;rjfQ}A$r$sA9VN?&Q Gy9ʳY9׌mF293x +qn5JW(iJhQqyd,ܤohQ>bՇY3+1)3QmD 1+X-Jgj@2#ZzD׏ɚhQ3}4&o(r /JB ;f 8!aF3J;JFy9JL;(@ ;rF!*ajxQE(4%*TFTDQ}^VQ //hQX>ٔ?L=1CལE)JxQbT1MIQȴ$(~E^5!F3߿r4+{G¼?w(L\ྣEސK^Т%[OТ~PtBٓzYO 3 \Vێ_OտoIb|DŽtWgt&/ >t$KC"45 Z@Հ$"pg+mF QjafAX:t ' `nf 4De.6^2e%dFMF11HlZȽk$uo \=՗U'YdW1:9ʌuʨr!HS0)%&-(M2*rEQ|9v>q6PK̕yiFuNH@IEש,7EyF>I*Cc`*"ΔNV_2BL`FD{Q*21*r*#r "2*ǣru峛H|O8%Q2#3mdf*rq>('t.29 3eg&6rUƵ*sgȅ&3dbn5ƃ0,dܕKحc-eR f* WNJUٖ8S>y4"'Tqy_s/Mkb¨z2QYyEyByvrf RYtG2Tm`\9_YW,؏4) <2e,Oxd^ [%L'K0ȇ":i@y4QGtֺv.>l;Yyg^2rkϺ{I7۬ L$lyε6E3=jq^mdh'y?knj; \2tv.ֱ[l*KKO==n|z\t+ni:7-?NBfdd盋z3 $q!qCPؾGq|N.N1|Ml;H-} +`u]Y+K2 r$Hqz;KuI߉o7ֈi{޺K[CpxЍf-9o7);${!BAYȾS Pvݦ } ߱䭇mt ; euG Pxnqlq)/GS:ʞko z(a4#F|zuXw\cTyYQ+Q+Vf]+~@ԇ" -o>vDcthvV(ciE M5!i_;iif)NNc/?y˦X/)4(nT l^KIEm+A*D\"$Q,.3*ZFVc˘zyXKsYFxa4Lv-\[otCq\6GD}] GqÊh 1#|(k6E5T4l^Sg/}-og 7Oxk'-?v^z?sƒ\b~j떼j}enzvYfS{#7jo/`S7ڗv̞-:6Iv:+Xrg"IUsl λe㇔qsrcӹ+wNU+7NƌFx)X[6$NuMb??~Hmz2MiY̷Kܣt<%$mJ,s[{{7]Vw2jSB%ipppK \XTi;3Z5ۦgX%&eN4?%?Ox[ mscF`S¸lRF}>v1e1%|BYQfpWm?FjQ1m[hQ&vOja _vÿ&_ .hg_q,GG.q\5{?fD!M6_pi* ~(}LskIuɣ&y鐷X5K䗺}5ɏ MmWE-_tyP7ɫkSN/"P"!!PzYb#00f~\$zc @ԎŬ!1WiJx c ){u)ʶk=U@?b5Q%;c1F3+ !JeXޭF.P|PKbPĎ)E3b@isPȌ.d@ik#T|ңR5d[#5P7}05hpO@ @a# Drq':5HmS@EzX?] Snqxo8+ҡі meq@u;mYαS @e ,X͸>XŒXzV溍o~Gve+S l^4v)j#{(];66#,QFݾFx/Hzlyшz _ nTZ7Xis4r96-pϿKc=S=ؓh^_y="e;[?_ř?Tqj( O6x1~.{?܀u/O,^8 >gqO>yNYyNk>ᯊtߧ8iߺ)75U4k=I:g<5UuOG>ku ~ygqƗ75>FpLi_a.g<8bC endstream endobj 15 0 obj <>/ProcSet[/PDF]>> endobj 16 0 obj <>stream x+2T0Bklagfn˥ksh endstream endobj 1 0 obj <> endobj 2 0 obj <> endobj 3 0 obj <> endobj 4 0 obj <> endobj 5 0 obj <>stream 2019-02-15T11:14:02+05:30 2019-02-15T11:13:46+05:30 2019-02-15T11:14:02+05:30 TeX application/pdf uuid:703ee6cf-6f0c-4240-a766-b50373dd7bde uuid:2d598624-f925-497b-af56-3a9895220a00 pdfTeX-1.40.19 endstream endobj 6 0 obj <> endobj xref 0 7 0000000000 65535 f 0000028303 00000 n 0000029494 00000 n 0000029582 00000 n 0000029658 00000 n 0000029710 00000 n 0000033112 00000 n trailer <> startxref 116 %%EOF

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.