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362   Biofuels for a More Sustainable Future




                                  (1986)  (1986)   (2000)  (2000)

                              References  Atanassov  (2007a)  Xu  Atanassov  (2007a)  Xu  al.  et  De  al.  et  De










                                     (13.4)

                                  (13.3)     j¼1 υ α j  (13.5)  (13.6)

                                   Q n  numbers  numbers
                                     ,       1 υ α j

                                     1 μ α j  fuzzy    Q n  j¼1  fuzzy  numbers  numbers
                           numbers     1  Q n  j¼1  intuitionistic  j¼1 μ α j ,  intuitionistic  real  real



                           fuzzy        ¼  are α
β¼(μ α ,υ α ,π α )
(μ β ,υ β ,π β )¼(μ α μ β ,υ α +υ β  υ α υ β )          Q n  ¼  are  (13.7)  positive  (13.8)  positive
                           intuitionistic α β¼(μ α ,υ α ,π α ) (μ β ,υ β ,π β )¼(μ α +μ β  μ α μ β ,υ α υ β )  π α j υ α j ,  …,n)  π α j υ α j ,  …,n)  any  any




                           two        μ α j ,  j¼1  α j (j¼1,2,     μ α j ,  j¼1  α j (j¼1,2, λα¼(1 (1 μ α ) λ ,(υ α ) λ )  represents α n ¼((μ α ) n ,1 (1 υ α ) n )  represents
                           between  Formulas  ¼  n  j¼1 α j  where  ¼
 n  j¼1 α j  where  λ  where  n  where



                           operations    n   
 n



                           Arithmetic




                           13.1           Multiplication  Exponentiation
                           Table  Operations  Addition
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