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This paper considers a two-stage flexible flowshop scheduling problem with no waiting time between two sequential operations of a job and no idle time between two consecutive processed jobs on machines of the second stage. We show its complexity and present a heuristic algorithm with asymptotically tight error bounds.
The nanostructured thermal barrier coatings exhibited excellent thermal cyclic resistance and low thermal diffusivity. The thermal cyclic life of the coating is about 600 h for 1-h cycles at 1050 °C. The thermal diffusivity of the coating is 90% of that of conventional thermal barrier coatings.
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