A Perishable Inventory System with Postponed Demands and Multiple Server Vacations

Figure 2

Fraction of time server is on vacation—𝜆 versus 𝛼^(𝑛)(𝑆=90,   𝑠=15,   𝑁=25,   𝛽=1.4,   𝛾=4,   𝜇=0.8,   𝑝=0.75.)