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Articles 31 - 33 of 33
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Analyzing Order Throughput Times In A Milkrun Picking System, J. P. Van Der Gaast, M.B. M. De Koster, Ivo J.B.F. Adan
Analyzing Order Throughput Times In A Milkrun Picking System, J. P. Van Der Gaast, M.B. M. De Koster, Ivo J.B.F. Adan
14th IMHRC Proceedings (Karlsruhe, Germany – 2016)
E-commerce fulfillment competition evolves around cheap, speedy, and time-definite delivery. Milkrun order picking systems have proven to be very successful in providing handling speed for a large, but highly variable, number of orders. In this system, an order picker picks orders that arrive in real time during the picking process; by dynamically changing the stops on the picker’s current picking route. The advantage of milkrun picking is that it reduces order picking set-up time and worker travel time compared to conventional batch picking systems. This paper is the first in studying order throughput times of multi-line orders in a milkrun …
Logistics Models To Support Order-Fulfillment From The Sea, Jennifer Pazour, Ian Shin
Logistics Models To Support Order-Fulfillment From The Sea, Jennifer Pazour, Ian Shin
14th IMHRC Proceedings (Karlsruhe, Germany – 2016)
Sea based logistics use maritime platforms to transfer cargo stored on vessels and delivers them ashore. This chapter describes the motivations and logistical requirements of seabasing. The sea base’s organizational structure, its material handling environment, and the internal cargo flow processes of the T-AKE vessel are described. Three seabasing distribution network scenarios -- Iron Mountain, Skin-to-Skin Replenishment, and Tailored Resupply Packages -- are described and mapped to warehousing and distribution networks, characteristics, and decision problems. Finally, related literature is reviewed and open areas for logistics research to support order fulfillment from the sea are identified.
A Novel Approach To Analyze Inventory Allocation Decisions In Robotic Mobile Fulfillment Systems, Tim Lamballais, Debjit Roy, M.B.M De Koster
A Novel Approach To Analyze Inventory Allocation Decisions In Robotic Mobile Fulfillment Systems, Tim Lamballais, Debjit Roy, M.B.M De Koster
14th IMHRC Proceedings (Karlsruhe, Germany – 2016)
The Robotic Mobile Fulfillment System is a newly developed automated, parts-to-picker material handling system. Storage shelves, also known as inventory pods, are moved by robots between the storage area and the workstations, which means that they can be continually repositioned during operations. This paper develops a queueing model for optimizing three key decision variables: (1) the number of pods per product (2) the ratio of the number of pick to the number of replenishment stations, and (3) the replenishment level per pod. We show that too few or too many pods per product leads to unnecessarily long order throughput times, …