iafet_10

PURPOSE ^

SYNOPSIS ^

function [IAFet,CSFet]=iafet(fe,facfrec,ft,C,nolin,estab)

DESCRIPTION ^

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 
0002 function [IAFet,CSFet]=iafet(fe,facfrec,ft,C,nolin,estab)
0003 
0004 if length(nolin)==1
0005    nolin=[nolin nolin];
0006 end
0007 
0008 nolini=nolin;
0009 nolin=nolini(1);
0010 
0011 if ((nolini(1)==0)&(nolini(2)==1))
0012    nolin=1;
0013 end
0014 
0015    fe=fe+0.00001*(fe==0);
0016 
0017    if estab==1
0018       if ft>0.3
0019          fec=facfrec*fe;
0020          CSFet=(250/1896.4)*(ft.*fec*4*pi^2).*(6.1+7.3*abs(log10(ft./(3*fec))).^3).*exp(-(4*pi*(ft+2*fec)/45.9));
0021          CSFet=0.000001*(CSFet==0)+CSFet;
0022          c1=(1./CSFet)>1;
0023          c2=(1./CSFet)<1;
0024          CSFet=CSFet.*c2+c1;
0025          Cu=1./CSFet;
0026          Cu=Cu*ones(1,length(C));
0027 
0028       else
0029          fm=3;
0030          p=1;
0031          cum=0.004;
0032          fe=facfrec*fe;
0033          CSFet=((fe/fm).^p).*exp(-(fe/fm));
0034          CSFet=CSFet/maxi(CSFet);
0035          CSFet=(1/cum)*CSFet;
0036          CSFet=0.000001*(CSFet==0)+CSFet;
0037          c1=(1./CSFet)>1;
0038          c2=(1./CSFet)<1;
0039          CSFet=CSFet.*c2+c1;
0040          Cu=1./CSFet;
0041          Cu=Cu*ones(1,length(C));
0042       end
0043       if nolin==1
0044          lonf=length(fe);
0045          fe=fe*ones(1,length(C));
0046          k=(-0.079389*log10(fe)+0.322725);
0047          n=0.84*((fe.^1.7)./(0.7.^1.7+fe.^1.7));
0048          C=ones(lonf,1)*C;
0049          IAFet=1./(Cu+(((k.*(C.^n))-Cu).*(C./((Cu./k).^(1./n)+C))));
0050       else
0051          IAFet=1./Cu;
0052       end
0053    else
0054       fec=facfrec*fe;
0055       CSFet=(250/1896.4)*((ft+0.1*fec).*fec*4*pi^2).*(6.1+7.3*abs(log10((ft+0.1*fec)./(3*fec))).^3).*exp(-(4*pi*((ft+0.1*fec)+2*fec)/45.9));
0056       CSFet=0.000001*(CSFet==0)+CSFet;
0057       c1=(1./CSFet)>1;
0058       c2=(1./CSFet)<1;
0059       CSFet=CSFet.*c2+c1;
0060       Cu=1./CSFet;
0061       Cu=Cu*ones(1,length(C));
0062 
0063       if nolin==1
0064          fe=facfrec*fe;
0065          lonf=length(fe);
0066          fe=fe*ones(1,length(C));
0067          k=(-0.079389*log10(fe)+0.322725);
0068          n=0.84*((fe.^1.7)./(0.7.^1.7+fe.^1.7));
0069          C=ones(lonf,1)*C;
0070          IAFet=1./(Cu+(((k.*(C.^n))-Cu).*(C./((Cu./k).^(1./n)+C))));
0071       else
0072          IAFet=1./Cu;
0073       end
0074    end
0075 
0076 if ((nolini(1)==0)&(nolini(2)==1))
0077    s=size(IAFet);
0078    iafet=sum(IAFet')';
0079    IAFet=iafet*ones(1,s(2));
0080 end

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