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       ÓÐÈý¸ö¿ÉÄæ·´Ó¦×é³ÉµÄ·´Ó¦ÌåϵÈçÏ£º
TG+M¡ú¡ûDG+ME (ÕýÄæ·´Ó¦ËÙÂʳ£Êý·Ö±ðΪk1¡¢k2)
DG+M¡ú¡ûMG+ME (ÕýÄæ·´Ó¦ËÙÂʳ£Êý·Ö±ðΪk3¡¢k4)
MG+M¡ú¡ûGL+ME (ÕýÄæ·´Ó¦ËÙÂʳ£Êý·Ö±ðΪk5¡¢k6)

½¨Á¢·´Ó¦ÒÔÉÏ·½³ÌµÄÊýѧģÐÍÈçÏ£º
dTG/dt=-k1[TG][M]+ k2[DG][ME]
dDG/dt=k1[TG][M]- k2[DG][ME] ¨Ck3[DG][M]+ k4[MG][ME]
dMG/dt= k3[DG][M]- k4[MG][ME] ¨Ck5[MG][M]+ k6[GL][ME]
dME/dt= k1[TG][M]- k2[DG][ME]+k3[DG][M]- k4[MG][ME] +k5[MG][M]- k6[GL][ME]

ÆäÖÐTG¡¢DG¡¢MG¡¢MEµÄŨ¶ÈÊǿɲⶨµÄ£¬¸÷ÎïÖÊŨ¶È¼ä´æÔÚÈçϹØÏµ£º
[GL]=[TG]0-[TG]-[DG]-[MG]= 0.6380-[TG]-[DG]-[MG] ;
[M]=[M]0-[ME]=4.0626-[ME];
·½³Ì³õʼֵΪ
[TG]0=0.6380
[DG]0=0
[MG]0=0
[GL]0=0
[ME]0=0
[M]0=4.0626

ÎÒÓÃMATLABÇó½âijһÌõ¼þÏµĶ¯Á¦Ñ§³£Êýk£¬³ÌÐòÈçÏ£º

clear all
k0 = [1 1 3 1 5 1];
% ËæÒâ¸ø¶¨µÄ²ÎÊý³õÖµ
lb = [0 0 0 0 0 0];
% ËæÒâ¸ø¶¨µÄ²ÎÊýÏÂÏÞ
ub = [1000  1000  1000  1000  1000 1000];
% ËæÒâ¸ø¶¨µÄ²ÎÊýÉÏÏÞ
X0=[0.638;0;0;0];

%t=0ʱ¿ÌËÄÖÖÎïÖÊTG¡¢DG¡¢MG¡¢MEµÄ³õʼŨ¶È
Xexp=...
[0.6380 0 0 0
0.1512   0.1088  0.1244  1.0757
0.0955  0.0816  0.1454  1.2740
0.0719  0.0632  0.1431  1.3858
0.0500  0.0493  0.1400  1.4838
0.0451  0.0436  0.1283  1.5247
0.0361  0.0351  0.1226  1.5762
0.0346  0.0301  0.1028  1.6149
0.0261  0.0282  0.1016  1.6460
0.0237  0.0257  0.0977  1.6630
]; % 25¶È0.8%´ß»¯¼ÁÌõ¼þϲ»Í¬Ê±¼ä£¨0 0.5 1.5 2 3 4 5 7 10min£©¸÷Ũ¶ÈÊý¾Ý

% µÚÒ»ÖÖ¼ÆËã·½·¨£¬Ê¹Óú¯Êýfmincon()½øÐвÎÊý¹À¼Æ
[k,fval,flag] = fmincon(@jlzengObjFmincon,k0,[],[],[],[],lb,ub,[],[],X0,Xexp);
fprintf('\nʹÓú¯Êýfmincon()¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ:\n')
fprintf('\tk1 = %.4f\n',k(1))
fprintf('\tk2 = %.4f\n',k(2))
fprintf('\tk3 = %.4f\n',k(3))
fprintf('\tk4 = %.4f\n',k(4))
fprintf('\tk5 = %.4f\n',k(5))
fprintf('\tk6 = %.4f\n',k(6))
fprintf('
The sum of the squares is: %.1e\n\n',fval)
k_fmincon = k;

%µÚ¶þÖÖ¼ÆËã·½·¨£¬Ê¹Óú¯ÊýLsqnonlin()½øÐвÎÊý¹À¼Æ
[k,resnorm,residual,exitflag,Output,lambda,jacobian]=...

lsqnonlin(@jlzengObjLsqnonlin,k0,lb,ub,[],X0,Xexp);
ci=nlparci(k,residual,jacobian);
fprintf('\n\nʹÓÃlsqnonlin()º¯Êý¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ£º\n'),Output
fprintf('\nʹÓú¯Êýlsqqnonlin()¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ:\n')
fprintf('\tk1 = %.4f\n',k(1))
fprintf('\tk2 = %.4f\n',k(2))
fprintf('\tk3 = %.4f\n',k(3))
fprintf('\tk4 = %.4f\n',k(4))
fprintf('\tk5 = %.4f\n',k(5))
fprintf('\tk6 = %.4f\n',k(6))
fprintf('
The sum of the squares is: %.1e\n\n',fval)
k_fmincon = k;

Èý¸ömÎļþÈçÏ£º
function dXdt=jlzengkinetic(t,X,k)                %½¨Á¢Î¢·Ö·½³Ì×飬¹©oed23sµ÷ÓÃ
dXdt=[ (-k(1)*X(1)*(4.0626-X(4))+k(2)*X(2)*X(4))
    (k(1)*X(1)*(4.0626-X(4))-k(2)*X(2)*X(4)-k(3)*X(2)*(4.0626-X(4))+k(4)*X(3)*X(4))    (k(3)*X(2)*(4.0626-X(4))-k(4)*X(3)*X(4)-k(5)*X(3)*(4.0626-X(4))+k(6)*(0.638-X(1)-X(2)-X(3))*X(4))    (k(1)*X(1)*(4.0626-X(4))-k(2)*X(3)*(4.0626-X(4))+k(3)*X(2)*(4.0626-X(4))-k(4)*X(3)*X(4)+k(5)*X(3)*(4.0626-X(4))-k(6)*(0.638-X(1)-X(2)-X(3))*X(4))];
%--------------------------------------------------
function f = jlzengObjFmincon(k,X0,Xexp)        %½¨Á¢Ê¹ÓÃfmincon()½øÐвÎÊý¹À¼ÆµÄº¯Êý
tspan = [0 0.5 1 1.5 2 3 4 5 7 10];
[t X] = ode23s(@jlzengkinetic,tspan,X0,[],k);
f = sum((X(:,1)-Xexp(:,1)).^2) + sum((X(:,2)-Xexp(:,2)).^2)   ...
    + sum((X(:,3)-Xexp(:,3)).^2) + sum((X(:,4)-Xexp(:,4)).^2);  %¸øÎïÖÊŨ¶ÈµÄ¼ÆËãÖµ
%------------------------------------------------------
function f = jlzengObjLsqnonlin(k,X0,Xexp)              %ÔÚÇ°ÃæÒѾ­ÓÃfminconÇóµÃ²ÎÊýµÄ»ù´¡ÉÏʹÓÃLsqnonlin¶Ô²ÎÊý½øÐиü¾«È·µÄ¼ÆËã
tspan =[0 0.5 1 1.5 2 3 4 5 7 10];
[t X] = ode23s(@jlzengkinetic,tspan,X0,[],k);   
f1 = X(:,1) - Xexp(:,1);
f2 = X(:,2) - Xexp(:,2);
f3 = X(:,3) - Xexp(:,3);
f4 = X(:,4) - Xexp(:,4);
f = [f1; f2; f3; f4];
%-------------------------------------------------------

ÔËÐнá¹û·¢ÏÖ1)Á½ÖÖ·½·¨Çó³öµÄkÖµ²î±ð¼«´ó£»2£©²»¹Ü½«ÄÇ×ékÖµ´øÈë[t X] = ode23s(@jlzengkinetic,tspan,X0,[],k)Çó³öµÄŨ¶ÈÓëʵ¼ÊŨ¶È²î±ðºÜ´ó£»3£©ÈÎÒâ¸ø¶¨µÄkÖµµÄÆðʼֵ¶Ô½á¹ûÓ°Ï켫´ó¡£
Çë¸ßÊÖ°ïæ£¡
Èç¹û»¹ÓÐû±íÊöÇå³þµÄ£¬ÇëÌá³öÀ´.

[ Last edited by sunxiao on 2009-3-8 at 11:17 ]
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///////////////////////////////////////////////////////////////////////////////
TG:
       f(x) = a*exp(b*x) + c*exp(d*x)
Coefficients (with 95% confidence bounds):
       a =      0.5502  (0.5149, 0.5856)
       b =      -3.983  (-4.797, -3.17)
       c =     0.08751  (0.05922, 0.1158)
       d =     -0.1857  (-0.2901, -0.08124)

Goodness of fit:
  SSE: 0.0004627
  R-square: 0.9985
  Adjusted R-square: 0.9978
  RMSE: 0.008782



DG:
       f(x) = (p1*x^2 + p2*x + p3) / (x^2 + q1*x + q2)
Coefficients (with 95% confidence bounds):
       p1 =     0.01908  (0.01341, 0.02475)
       p2 =     0.05717  (0.01411, 0.1002)
       p3 =  -1.43e-007  (-0.0008759, 0.0008756)
       q1 =     -0.2444  (-0.8719, 0.3831)
       q2 =      0.1788  (0.04132, 0.3162)

Goodness of fit:
  SSE: 1.816e-005
  R-square: 0.9979
  Adjusted R-square: 0.9963
  RMSE: 0.001906


MG:
       f(x) = (p1*x^2 + p2*x + p3) / (x^2 + q1*x + q2)
Coefficients (with 95% confidence bounds):
       p1 =     0.07364  (0.04582, 0.1015)
       p2 =      0.3095  (-0.1137, 0.7328)
       p3 =  1.802e-005  (-0.00794, 0.007976)
       q1 =      0.9642  (-1.498, 3.426)
       q2 =      0.6633  (0.1897, 1.137)

Goodness of fit:
  SSE: 0.0001089
  R-square: 0.9933
  Adjusted R-square: 0.988
  RMSE: 0.004666


ME:
       f(x) = (p1*x + p2) / (x^2 + q1*x + q2)
Coefficients (with 95% confidence bounds):
       p1 =        2169  (-1.654e+004, 2.088e+004)
       p2 =      0.9198  (-23.22, 25.06)
       q1 =        1265  (-9708, 1.224e+004)
       q2 =       406.4  (-3050, 3862)

Goodness of fit:
  SSE: 0.003249
  R-square: 0.9986
  Adjusted R-square: 0.9978
  RMSE: 0.02327

///////////////////////////////////////////////////////////////////////

Õ⼸¸öŨ¶È·½³ÌµÄÄâºÍ½á¹ûÈçÈ總¼þÖÐËùʾ¡£

È»ºó¾Í¿ÉÒÔ¼ÆËãÔÚʵÑéʱ¼äµãÉÏTG, DG, MG, MEµÄŨ¶È¶Ôʱ¼äµÄµ¼ÊýÁË£¬½á¹ûÈçÏ£º
////////////////////////////////////////////////////////////////////////

>> dTGdt=[-2.20812330989885;-0.313903194394831;-0.0543072642775238;-0.0178664548644437;-0.0119669262873315;-0.00932216291313879;-0.00773110042346866;-0.00642090783831632;-0.00442930197092527;-0.00253772213004114]'

dTGdt =

   -2.2081   -0.3139   -0.0543   -0.0179   -0.0120   -0.0093   -0.0077   -0.0064   -0.0044   -0.0025

>> dDGdt=[0.319813865326457;-0.0194568056055164;-0.0513088546928754;-0.0279068843505723;-0.0164124937537988;-0.00737171342598024;-0.00411902140843388;-0.00261612659035434;-0.00131890646666286;-0.000639095343223927;]'

dDGdt =

    0.3198   -0.0195   -0.0513   -0.0279   -0.0164   -0.0074   -0.0041   -0.0026   -0.0013   -0.0006

>> dMGdt=[0.466367050839715;0.0999072143408668;0.00933499024234685;-0.00972884650823934;-0.0127379996363272;-0.0104546020606972;-0.00764618068387975;-0.00566858666344666;-0.00339187374122912;-0.00186232961806277;]'

dMGdt =

    0.4664    0.0999    0.0093   -0.0097   -0.0127   -0.0105   -0.0076   -0.0057   -0.0034   -0.0019

>> dMEdt=[5.28500993498458;0.818198974835815;0.315950868952596;0.165592835535058;0.101261692838514;0.0484953510802743;0.0278523652553689;0.0177021334686043;0.00842980322026890;0.00327667396220621;]'

dMEdt =

    5.2850    0.8182    0.3160    0.1656    0.1013    0.0485    0.0279    0.0177    0.0084    0.0033

>>

////////////////////////////////////////////////////////////////////////////

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