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Ítem Predicción de la rugosidad superficial en texturizados por electroerosión usando redes bayesianas(Universidad Icesi, 2013-10-01) Correa Valencia, MaritzaA model for prediction of parameters that defined roughness surface [Ra] when this texture is produced by Electro Discharge Texturing [EDT] is presented. The non-linearity, instabilities and expensive experimentation in this process, are main causes for use predictive techniques by means of robust and reliable algorithms, for study factors that present characterization hard. Series of experiments were conducted to produce plane surface textures using a modified EDM machine ALIC-1. The data collected in experimental phase were used for trained Bayesian models with Naïve Bayes and Tree Augmented Naïve Bayes [TAN] classifiers. Results show acceptable behavior within the operating range, consistent with the physical phenomena governing EDT process. Find a surface roughness with particular specifications is demonstratedÍtem Modelo de ruteo para recolección de leche cruda usando algoritmos genéticos(Universidad Icesi, Facultad de Ingeniería, 2014-10-01) Rosales Vásquez, Ricardo; Correa Valencia, MaritzaEl artículo examina el uso de un método metaheurística - algoritmos genéticos - para evaluar un modelo de rutas para la recolección de la leche cruda. Un modelo fue implementado en base a datos reales, recogidos a través de trabajo de campo, siguiendo el método de la «agente de viajar problema», utilizando la caja de herramientas del algoritmo genético Matlab. Los resultados muestran que las rutas obtenidos con la aplicación del algoritmo genético son factibles en términos de tiempo y nodos visitados, demostrando el potencial de esta herramienta. Los costes obtenidos por este método se diferencian de los métodos actuales en alrededor de 3%, que está dentro del rango reportado en la literatura.Ítem Tele-operated laboratory for teaching logistics operations(2015-10-01) Correa Valencia, Maritza; Chamorro, Alexander Aragón; Aragón Chamorro, AlexanderThe link between academia, government, and business to improve the development and appropriation of knowledge in certain topics, such as logistics, is being promoted in Colombia. One of the key issues of teaching logistics is try to bring to actual work contexts, problems that can be handled by people who do not have experience. The incorporation of Information and Communications Technologies (ICT) in academic environments supports the training of professionals in different fields. The tele-operated laboratory for logistics operations called Internet2 way [TELEOPLOGIS] is a project focused on the development and implementation of a remote laboratory where an integrated and didactic manufacturing cell, some robot manipulators, and specific pieces of software are used for the teaching of logistics operations. This laboratory includes the development of guidelines and academic workshops with two approaches: teleoperation systems for discrete events, and manufacturing cells that transform the cell nodes into elements of logistics operations. We achieved acceptable results in both remote operations and in practices that currently are in progress.