Due to rapid technological innovation and global competitiveness, the component cost, the selling price and the demand rate of Hi-tech industries (such as computers and communication consumer’s products) usually decline significantly with time. From a practical viewpoint, there is a need to develop a replenishing policy with finite horizon when the component cost, the selling price and the dema...

In this paper we consider an airline seat allocation model where multiple fare classes are available and replenishment can be allowed for the lower fare classes. Such a replenishment likely occurs whenever the higher fare classes do not have demands large enough compared with the number of the pre-allocated seats. Then, the lower fare classes should be reopened while the prices may be discounte...

Consideration of resources such as fuel, battery charge, and storage space, is a crucial requirement for the successful persistent operation of autonomous systems. The Stochastic Collection and Replenishment (SCAR) scenario is motivated by mining and agricultural scenarios where a dedicated replenishment agent transports a resource between a centralised replenishment point to agents using the r...

We consider a periodic-review, serial inventory system, in which each stage replenishes inventory according to an echelon-stock (r, nQ, T ) policy – a standard echelon-stock (r, nQ) policy executed every T periods. Demands are independent, identically distributed in different periods and occur at the most downstream stage. Two types of fixed costs are considered: setup cost and replenishment co...

This paper considers a continuous-review, single-product production-inventory system with a constant replenishment rate, compound Poisson demands and lost-sales. Two objective functions that represent metrics of operational costs are considered: (1) the sum of the expected discounted inventory holding costs and lost-sales penalties, both over an infinite time horizon, given an initial inventory...

There are many benefits for coordination of multiple suppliers when single supplier cannot satisfy buyer demands.  In addition, buyer needs to purchase multiple items in a real supply chain. So, a model that satisfies these requests has many advantages. We extend the existing approaches in the literature that assume all suppliers need to be put on a common replenishment cycle and each supplier ...

Abstract The model describes an EOQ model with time-varying deterioration, partial backlogging which depends on the length of the waiting time for the next replenishment, linearly time-varying demand function over a finite time horizon and variable replenishment cycle. The model is solved analytically to obtain the optimal solution of the problem. It is illustrated with the help of a numerical ...

there are many benefits for coordination of multiple suppliers when single supplier cannot satisfy buyer demands.  in addition, buyer needs to purchase multiple items in a real supply chain. so, a model that satisfies these requests has many advantages. we extend the existing approaches in the literature that assume all suppliers need to be put on a common replenishment cycle and each supplier ...

This paper presents an integrated imperfect production inventory model under two layer supply chain management. To ensure the orders, manufacturer convinces retailer to pay a percentage of purchasing cost prior replenish products and offers facilities such as (i) delay in payment on remaining part (ii) free transportation basis advance amount. Time dependent development is incurred maintain rel...

The Bundelkhand region of Uttar Pradesh, India, is a parched region. Although long-term average annual rainfall the quite sufficient, yet, on short-term basis, experiencing sharp negative deviation in rainfall. was once densely forested area and considered cloud formation zone. present analysis shows that correlates with forest cover calls for paradigm shift region’s water resources management ...