“…A number of real-world situations where deteriorating jobs occur were investigated, for the detailed application background of the case where the processing time of each job is increasing with its starting time (see, e.g., [1,2]). Usually, in such problems, the processing time of a deteriorating job is given by f i (t), where f i (t) is a nondecreasing function of the job start time t. In most of the related studies [3,4] , linear deterioration was assumed.…”