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Maintenance management with application Chapter | 13  355


                         Normal         Permissible       Alert Critical
                       1


                      0.8
                     Degree of membership  0.6




                      0.4

                      0.2


                       0
                        50            100           150            200
                                         Thermography
             FIGURE 13.5 Thermography.


                                  Normal                Alert   Critical
                       1

                      0.8
                     Degree of membership  0.6




                      0.4

                      0.2


                       0

                         0   2   4    6   8   10  12  14   16  18  20
                                             Iron
             FIGURE 13.6 Iron.



                The third input variable is the thermography, produced by the generating
             units. According to , the variable thermography is shown in Fig. 13.5.
                The fourth input variable is iron produced by the generating
             units. According to Tables 13.8 and 13.9, the variable “iron” is shown in
             Fig. 13.6.
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