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Sets i 'designs' /1*37/ j 'operations for each design' /1*96/ k 'machines' /1*3/ ; Scalar M 'a large positive number' /100000/ ; Table P(i,k) 'standard time to design i' 1 2 3 1 18.2 18.2 6.1 2 13.2 13.2 4.4 3 13.1 13.1 4.4 4 19.0 19.0 6.3 5 10.0 10.0 3.3 6 13.1 13.1 4.4 7 9.0 9.0 3.0 8 5.0 5.0 1.7...

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sets i non hub node i /1*81/ */p city /1*81/ Alias(i,j,k,m) ; Parameters a discount /0.7/ c(i,j,k,m) /c(i,k)+c(m,j)+(a*c(k,m))/ table t(i,k) average amount of commodities from i to j $include C:\Users\Asus\Desktop\appendixs\Appendix3.inc ; table d(i,j) distance between i and j $include C:\Users\Asu...