نتایج جستجو برای: controllable processing times
تعداد نتایج: 831156 فیلتر نتایج به سال:
We consider the scheduling problem of minimizing the makespan on a single machine with step-improving job processing times around a common critical date. For this problem we give an NP-hardness proof, a fast pseudo-polynomial time algorithm, an FPTAS, and an on-line algorithm with best possible competitive ratio.
this paper presents a mathematical model for a flow shop scheduling problem consisting of m machine and n jobs with fuzzy processing times that can be estimated as independent stochastic or fuzzy numbers. in the traditional flow shop scheduling problem, the typical objective is to minimize the makespan). however,, two significant criteria for each schedule in stochastic models are: expectable m...
This paper presents a mathematical model for a flow shop scheduling problem consisting of m machine and n jobs with fuzzy processing times that can be estimated as independent stochastic or fuzzy numbers. In the traditional flow shop scheduling problem, the typical objective is to minimize the makespan). However,, two significant criteria for each schedule in stochastic models are: expectable m...
A server subject to random breakdowns and repairs offers services incoming jobs whose lengths are highly variable. checkpointing policy aiming protect against possibly lengthy recovery periods is in operation. The problem of how choose a interval order optimize performance addressed by analysing general queueing model which includes breakdowns, repairs, back-ups recoveries. Exact solutions obta...
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