Technical Note—Waiting Time in an (S− 1,S) Inventory System—Constant Service Time Case

EFFECTIVE UTILIZATION OF IDLE TIME IN AN (s,S) INVENTORY WITH POSITIVE SERVICE TIME

We deviate from the Berman et al. models in inventory with positive service time. We establish a necessary and sufficient condition for system stability. Several performance measures are computed. An optimisation problem is discussed. Our analysis suggests that it is optimal to place the replenishment order when the inventory level is positive (even in the zero lead time case). Numerical illust...

Production inventory with service time and interruptions

In all the studies on inventory systems prior to Berman et al [8], it was assumed that the serving of inventory is instantaneous. However this is not the case in many practical situations. For example in a TV showroom, a customer usually spends some time with the salesperson before buying the TV or in a computer shop, after selecting the model, one might have to wait until all the required soft...

An inventory model for deteriorating items with time-dependent demand and time-varying holding cost under partial backlogging

In this paper, we considered a deterministic inventory model with time-dependent demand and time-varying holding cost where deterioration is time proportional. The model considered here allows for shortages, and the demand is partially backlogged. The model is solved analytically by minimizing the total inventory cost. The result is illustrated with numerical example for the model. The model ca...

FINITE-TIME PASSIVITY OF DISCRETE-TIME T-S FUZZY NEURAL NETWORKS WITH TIME-VARYING DELAYS

This paper focuses on the problem of finite-time boundedness and finite-time passivity of discrete-time T-S fuzzy neural networks with time-varying delays. A suitable Lyapunov--Krasovskii functional(LKF) is established to derive sufficient condition for finite-time passivity of discrete-time T-S fuzzy neural networks. The dynamical system is transformed into a T-S fuzzy model with uncertain par...

Service Parts Inventory Control with Lateral Transshipment that takes Time