Many decisions in operations management (OM) belong to the class of Non-deterministic
Polynomial hard problems and thus heuristic search methods have been applied to improve …

Over the years since the advancement of inventory management and fuzzy set theories, a
vast number of studies have been published to integrate these concepts. Nonetheless, no …

In the past two decades, multi-objective optimization has attracted increasing interests in the
evolutionary computation community, and a variety of multi-objective optimization algorithms …

The growing environmental concerns, governmental regulations, and significant cost
savings are the primary motivations for companies to consider the reuse and recovery of …

Vendor-managed inventory (VMI) is a popular policy in supply chain management (SCM) to
decrease bullwhip effect. Since the transportation cost plays an important role in VMI and …

The dynamic rate of investment in promotion during different price-ranges and the optimum
investment in preservation technology are developed for seasonable or fashionable …

Over the last few decades, inventory management of produced, recovered, and returned
items in the closed loop supply chain (CLSC) systems has been significantly taken into …

To maintain a multi-stage cleaner production process, the major task is eliminating all
defective items during the production system and an investment is necessary to reduce the …

In many situations of real life, the products are manufactured from a supplier that is located
very far from buyer. Moreover, the lot contains some products which have imperfect quality …

This paper investigates a periodic review fuzzy inventory model with lead time, reorder point,
and cycle length as decision variables. The main goal of this study is to minimize the …