Examinando por Autor "Portales, Hector"
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Ítem Stochastic simulation model of attention to response to electrical distribution system faults(Elsevier B.V., 2023-03) Jara, Mario; Sabattin, Jorge; Rojas, Felipe; Reyes, Hector; Jones, Francisco; Portales, Hector; Reyes, Marcelo; Gatica, Gustavo; Aliaga, Erwin; Calderon-Ochoa, Andres; Coronado-Hernandez, Jairo R.Queuing theory allows simulating scenarios applied to requirements of events of stochastic origin to solve problems in the attention service of electrical networks. Regarding emergency reactions, companies may experience response time delays due to incorrect sizing of the number of crew members, among other parameters. So is the case for a company in the Chilean energy sector called Enel, which is currently experiencing response delay issues. A complete formulation is presented, which can be easily used for planning the crews required for attention to the response to electrical distribution system faults. The formulation is applied to an electrical distribution company located in Chile. © 2023 Elsevier B.V.. All rights reserved.Ítem Technical evaluation of thermal containers for the distribution of thermolabile medicines in the chilean pharmaceutical supply chain(2023-03) Dinamarca Dinamarca, Sebastian; Jones, Francisco; Portales, Hector; Ortega, Jorge Sabattin; Rojas Rojas, Felipe; Reyes Diaz, Hector; Reyes Rogget, Marcelo; Coronado-Hernandez, Jairo; Romero-Conrado, Alfonso R.The distribution process for thermolabile medicines requires special transportation conditions to maintain the necessary cold chain. Given the geography of Chile, the transportation times between and towards the different regions, usually located on extreme sides of the country, generate a logistical problem for pharmacies and drugstores. This work aims to evaluate an alternative type of container for thermolabile medicines transportation, to optimize the logistic process, lower costs, and increase the lifetime and capacity of the containers. An experimental model was made with the container to be evaluated where measurements were made in a controlled environment to identify its thermal stability. The results showed that the thermal container evaluated has high-level thermal stability and, regardless of its high cost compared to the standard thermal units. In the short term, the use of the container improves the unit acquisition costs, the thermal performance, and reduces the costs associated with the transport logistics operator and the drugstore. © 2023 Elsevier B.V.. All rights reserved.