Table 1.

Fuzzy rules used

Rules
If (Un is Low) and (f is Low), Then (a is Medium_High) and (c is Medium)
If (Un is Low) and (f is Medium), Then (a is Medium_Low) and (c is Medium_Low)
If (Un is Low) and (f is High), Then (a is High) and (c is Low)
If (Un is Medium) and (f is Low), Then (a is Medium_High) and (c is Medium_High)
If (Un is Medium) and (f is Medium), Then (a is Medium_High) and (c is Medium_Low)
If (Un is Medium) and (f is High), Then (a is Medium_High) and (c is Low)
If (Un is High) and (f is Low), Then (a is Medium) and (c is High)
If (Un is High) and (f is Medium), Then (a is Medium_Low) and (c is Medium_Low)
If (Un is High) and (f is High), Then (a is High) and (c is Low)