vendor selection decisions are complicated by the fact that various conflicting multi-objective factors must be considered in the decision making process. the problem of vendor selection becomes still more compli-cated with the inclusion of incremental discount pricing schedule. such hard combinatorial problems when solved using meta heuristics produce near optimal solutions. this paper propose...

NOMENCLATURE Subscripts d Dismantling procedure/unit s Storage site r Treatment unit m Market for cullet i Any procedure/unit Design variables Quantity of ELV transferred to dismantling unit d Quantity of ELV of no glazing dismantling Quantity of glazing transformed from dismantling unit d to storage site s Quantity of glazing exposed to landfill Total quantity of glazing exposed to landfill Qu...

In this research we develop mathematical models of Joint Economic Lot-sizing Problem (JELP) in a situation when a supplier offers time-based temporary price discounts to a buyer during a sale period. To respond this, the buyer places a special order with higher quantity. In literature, it has been assumed that the buyer tends to place the special order at the end of the sale period. We relax th...

We address the coordination problem in a single-supplier/multiple-buyer supply chain. The supplier wishes to coordinate the supply chain by offering quantity discounts. To obtain their complete cost information, the supplier exchanges his own cost parameters with buyers leading to vertical information sharing. The supplier thinks that the buyers, as they have access to supplier’s setup and hold...

We investigate a tool which small manufacturers engaging in international supply contracts can use to dampen the variations in their income caused by exchange rate uctuations. The method we study involves contractual speci cations for a minimum purchase quantity with the buyer. The particular case we consider is that of a smaller manufacturer providing a product to a large overseas corporation,...

Quantity of organization in complex networks here is measured as the inverse of the average sum of physical actions of all elements per unit motion multiplied by the Planck’s constant. The meaning of quantity of organization is the number of quanta of action per one unit motion of an element. This definition can be applied to the organization of any complex system. Systems self-organize to decr...

to study the mechanical and thermal parameters effective on quality and quantity of olive oil towards an extraction of highly pure oil, the velocity in rps of crushing rollers, at two levels of 6 and 12 (rps) along with the temperature of the mixing unit at three levels of 30, 45 and 60°c were taken into account. data, obtaind through a factorial experiment of randomized complete block design (...