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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
An Exploratory Study Of Mixed-Width Aisle Layouts For Order Picking In Distribution Centers, Corinne H. Mowrey
An Exploratory Study Of Mixed-Width Aisle Layouts For Order Picking In Distribution Centers, Corinne H. Mowrey
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Order picking is arguably the most expensive operational activity for a distribution center (DC), constituting upwards of 50% of total operating costs. Designing an optimum order picking system (OPS) for a DC depends on several system parameters, such as aisle layout, storage system configuration, storage policy, picking method, and picking strategy. From an aisle layout standpoint, traditional DCs utilize either entirely wide or entirely narrow aisles in their picking systems. Wide aisles allow pickers to pass each other, reducing blocking and requiring fewer pickers. However, the space required for wide-aisle systems is high. Narrow aisles utilize less space than wide …
Cognitive Cyber Weapon Selection Tool Empirical Evaluation, Preethi Vinayak Ponangi
Cognitive Cyber Weapon Selection Tool Empirical Evaluation, Preethi Vinayak Ponangi
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Keeping in pace with the latest technological innovations in the cyber world, the misuse of this powerful infrastructure has also increased proportionally. Although a lot of recent attacks have been documented in the mainstream media, counter measures for cyber defense mechanism have only received some attention in the recent research literature. Most of the global attacks in the cyber space have proved to be carefully planned premeditated attacks. Considering that most of these attacks are co-coordinated by humans, a new area of psychological weaponry is being investigated by the research community. This study aims to empirically evaluate the effectiveness of …
Drop-Shipping At A Promotional Products Distributor, Ramanan Veeraragavan
Drop-Shipping At A Promotional Products Distributor, Ramanan Veeraragavan
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During the current economic times, companies are trying to reduce costs by incorporating new strategies into their business plan. Supply chain, in particular the distribution network is one area where an improvement can bring in a healthy return on investment to a company. Drop-shipping is a distribution strategy whereby customer orders are fulfilled by directly delivering products from manufacturer's facility, instead of storing these products at the warehouse. Drop-shipping helps in reducing inventory and material handling costs at the warehouse, but may increase transportation costs due to frequent shipments. This research was motivated by the current operations at a promotional …
Scheduling Surgical Cases In A Constrained Environment, Bharathwaj Vijayakumar
Scheduling Surgical Cases In A Constrained Environment, Bharathwaj Vijayakumar
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This research examines a complex surgical case scheduling problem for a publicly-funded hospital in the Midwest United States. Publicly-funded hospitals are typically under tight budget constraints and these hospitals strive to maximize the utilization of their resources such as beds, staff, equipment, operating rooms, etc. These resources are relatively fixed for a publically funded hospital. A manual scheduling approach followed by this hospital does not guarantee optimal solutions and consequently has led to large variation in the utilization of resources. This real-world problem is described in this research as a multi-day, multi-resource, and patient-priority-based surgical case scheduling problem with the …
Determining The Optimal Aisle-Width For Order Picking In Distribution Centers, Sheena R. Wallace-Finney
Determining The Optimal Aisle-Width For Order Picking In Distribution Centers, Sheena R. Wallace-Finney
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Many companies use distribution centers (DC) as hubs for storing and distributing products to customers (e.g., wholesalers, retailers, or consumers). Order picking, a critical activity in every DC, refers to retrieving products from the storage locations to fulfill customer orders. It accounts for over 50% of the DC operating cost. Order picking system design involves several decisions, such as layout of the picking area, storage policy, picking method, material handling equipment, and information technology, to name a few. Aisle configuration (number, length, width, and orientation) is a critical layout decision as it directly affects picker productivity and required space. Previous …