Examinando por Autor "Coronado-Hernandez, J."
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Ítem A faster optimal model slotting in rack positions with mono SKU pallet(Elsevier, 2022) Rios, J.; Morillo-Torres, D.; Olmedo, A.; Coronado-Hernandez, J.; Gatica, G.The warehouse, with its racking positions, oversees regulate the flow of goods in the distribution center (DC). An adequate distribution of the products in the warehouse (slotting), reduces the operating picking times once is done by a full pallet. This paper presents a mathematical model that optimizes slotting times in a selective shelving and random storage warehouse. The model places the products with the highest turnover rate and ABC inventory valuation close to the dispatch area. In addition, it places high-value products on the upper shelf levels and heavy pallets on the lower levels. The results applied to a company dedicated to the manufacture of cellulose pulp and derivatives, obtained a 19.24% reduction in operating time.Ítem A practical methodology of design of off-line reservoirs for reducing maximum water levels in urban channels(Elsevier B.V., 2020-08) Coronado-Hernandez, O.; Coronado-Hernandez, J.; Gatica, G.Flooding can often occur in many places due to the increasing trend of rainfall events (climate change), the urbanization process of a catchment area, or by an undersized urban channel. Reservoirs are used for limiting flooding since they can store an enough water volume. This research presents a practical procedure for sizing off-line reservoirs with an application in urban channels for places with space limitations. A complete formulation is presented, which can be easily used for designers and engineers for computing dimensions of off-line reservoirs. The formulation is applied to a case study located at the Cartagena de Indias, Colombia.Ítem A preliminary risk assessment in naval Antarctic expeditions(Elsevier, 2024) Coronado-Hernandez, J.; Rios-Angulo, W.; Ospino, M.; Tarra, P.; Costa, G.In this work to implement the Risicar methodology and propose a risk overview to facilitate and encourage traveling in a Ship to the Antarctic continent to carry out scientific expeditions would use this method to treat possible risks to which they may be exposed. The results of this method were determinates the possible risks of these expeditions were identified and classified, evaluated, and treated, facilitating the risk management of the deck operations.Ítem Pricing for urban areas using queuing theory(Elsevier, 2022) Rios, J.; Morillo-Torres, D.; Olmedo, A.; Coronado-Hernandez, J.; Gatica, G.By reducing traffic congestion in large cities and providing a safe place to leave vehicles while their owners are doing their activities, parking facilities play an important role in society by reducing congestion and the negative externalities (e.g. CO2 generation, noise, congestion) caused by vehicular traffic, being this one detrimental to society. Additionally, parking lots must establish strategies that allow them to be profitable and remain competitive. We determined the rate of a parking lot with a 20% margin, considering the rate of actual arrivals and the lost arrivals rate when the parking lot is full and the time a vehicle spends in the parking lot. In the results we found the queuing theory is applied to a private parking lot, in addition to establishing an optimal pricing policy, operating policies are established that allow it to generate additional revenue.