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Extrusion through the porthole die is a predominant forming process used in the production of hollow aluminum alloy profiles across the aluminum extrusion industry. Longitudinal weld seams formed during the process may negatively influence the quality of extruded profiles. It is therefore of great importance to understand the formation of weld seams inside the welding chamber during extrusion, as...
Less-than-truckload deliveries is known to be a source of inefficiency in last-mile logistics leading to high transport costs, environmental pollution, traffic jam, particularly in urban settings. An Urban Consolidation Center (UCC) provides a platform to consolidate freights from various sources before delivering into the city. The operations of UCCs consist of 2 interrelated phases, consolidating...
A number of cities around the world have adopted urban consolidation centres (UCCs) to address some challenges of their last-mile deliveries. At the UCC, goods are consolidated based on their destinations prior to their deliveries into the city centre. In many examples, the UCC owns a fleet of eco-friendly vehicles to carry out the deliveries. A carrier/shipper who buys the UCC's service hence no...
Unprecedented pace of urbanization and rising income levels have fueled the growth of car ownership in almost all newly formed mega cities. Such growth has congested the limited road space and significantly affected the quality of life in these mega cities. Convincing residents to give up their cars and use public transport is the most effective way in reducing congestion, however, even with sufficient...
When agents are uncertain about actions or strategies of their potential neighbors, coalition formation for the environmental problem is a critical one. We use spatial strategies of spatial prisoner's dilemma to model for this problem when coalitions are formed. Our model allows agents not only to follow their major but also to choose suitable decisions by themselves. However, there are specific strategies...
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