Browsing Industrial Engineering by Author "(ORCID 0000-0002-9627-4780 & YÖK ID 124801) Ekici, Ali"
Now showing items 21-27 of 27
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Pricing decisions in a strategic single retailer/dual suppliers setting under order size constraints
Ekici, Ali; Özener, Başak Altan; Özener, Okan Örsan (Informa Group, 2016)In this paper, we study a duopolistic market of suppliers competing for the business of a retailer. The retailer sets the order cycle and quantities from each supplier to minimize its annual costs. Different from other ... -
Production planning with flexible manufacturing systems under demand uncertainty
Elyasi, M.; Özener, Başak Altan; Ekici, Ali; Özener, Okan Örsan (Taylor & Francis, 2024)This paper delves into the impacts of an ongoing global crisis on the resilience of supply chains. Furthermore, it proposes measures to address and mitigate the disruptions caused by the prevailing uncertainties. For ... -
Stochastic production planning with flexible manufacturing systems and uncertain demand: A column generation-based approach
Elyasi, Milad; Özener, Başak Altan; Ekici, Ali; Özener, Okan Örsan; Yanıkoğlu, İhsan (Elsevier, 2022)The ongoing pandemic, namely COVID-19, has rendered widespread economic disorder. The deficiencies have delayed production at manufacturers in several industries on the supply side. The effects of disruption were more ... -
Supplier selection and order allocation in the presence of suppliers with exact annual capacity
Ekici, Ali; Özener, Okan Örsan; Elyasi, Milad (Inderscience Enterprises Ltd., 2021)In this paper, we focus on the supplier selection and order quantity allocation for a single retailer. The retailer orders a product from multiple suppliers with capacities, adds value to the product and fulfils the demand ... -
A two-phase heuristic algorithm for the label printing problem
Çankaya, Emre; Ekici, Ali; Özener, Okan Örsan (Springer, 2023-04)In this paper, we study the label printing problem (LPP) which has applications in the printing industry. In LPP, the demand for a set of labels is satisfied by printing the labels using templates with multiple slots. Given ... -
A variable neighborhood search based matheuristic for a waste cooking oil collection network design problem
Ölmez, Ömer Berk; Gültekin, Ceren; Koyuncu, Burcu Balçık; Ekici, Ali; Özener, Okan Örsan (Elsevier, 2022-10)Households produce large amounts of waste cooking oil (WCO), which should be disposed properly to avoid its negative impacts on the environment. Using WCO as raw material in biodiesel production is an effective disposal ... -
Variable-sized bin packing problem with conflicts and item fragmentation
Ekici, Ali (Elsevier, 2022-01)In this paper, we study the Variable-Sized Bin Packing Problem with Conflicts and Item Fragmentation (VSBPPC-IF) that has applications such as (i) the delivery planning of incompatible items using a fleet of heterogenous ...
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