Examinando por Autor "Torres Acosta, Jairo Humberto"
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Ítem Diseño de un Procedimiento Basado en Algoritmos Genéticos para dar Solución al Problema de Scheduling Admitiendo Rechazos en Escenarios Flexible Flow ShopPerea González, Viviana Alexandra; Torres Acosta, Jairo HumbertoThis research addresses the orders acceptance and Scheduling problem, considering a Flexible Flow Shop environment with non-related machines. The objective is to maximize total revenue, which is composed by the revenue for the accepted orders, the penalties for those which are rejected and the costs of the idle time of the resources. To solve it, in first place the mixed integer program is formulated, which formally represents the environment and solve problems with up to 8 orders and 5 stages. Given its complexity, a heuristic approach is developed which evaluates the convenience of the arrived orders, providing an initial solution to the problem. The proposed procedure is designed with this approach and a genetic algorithm, which aims to take advantages from the recombination of solutions and gives, accordingly to the computational tests, solutions for instances up to 30 orders and 10 stages in reasonable time.Ítem Estructuración y Formulación de un Modelo de Secuenciación y Asignación de Productos y Medios de Transporte a Muelles de CargaAcuña Garzón, Roberto Carlos; Torres Acosta, Jairo HumbertoThe document presents the structure of a model of sequencing and assignment of products and means of transport to loading docks. The problem is to determine which trucks should be assigned to each dock and, simultaneously, which dispatch orders are to be loaded on which trucks making use of the forklifts available in the system. It defines the geometry of the system (parameters and varaible) and the assumptions involved that allow parameterization of the problem as scheduling. It is formulated a heuristic algorithm which allows to obtain an initial feasible solution to the problem, later, the Tabu Search is used as a mechanism to find new solutions. The verification of the procedure is done by means of software programmed in Visual Basic of Excel.Ítem Information Systems for the Transfer of Control in a Chain of Manufacturing(Universidad Distrital Francisco José de Caldas) Torres Acosta, Jairo HumbertoÍtem Integración de una política de logística inversa en una estación cross docking como estrategia de sostenibilidad empresarial de una cadena de suministro inteligenteBallesteros Muñoz, José Abelardo; Torres Acosta, Jairo HumbertoIn the course of the present work a logical model was established that allows to characterize the approach of intelligent supply chains and which represent a point of transformation according to the technological advances and the diversification of the global markets towards where the administration of the chains Supply chain managers, strategies that allow them to face the new challenges of logistics in terms of complexity faced by operations, growing demand and the need for The different products and services. As part of the methodology, a review of the main approaches to supply chain management was made through research carried out mainly by the multinational company IBM on this subject, providing a base model that allows characterizing and grouping all the variables to consider In an intelligent supply chain and through policies of reverse logistics is able to achieve a significant reduction in costs and a significant competitive advantage in the marketÍtem Modelo de dimensionamiento del servicio web hosting dirigido a proveedores de la pequeña y mediana empresa colombiana(Universidad Distrital Francisco José de Caldas) Ramírez Calero, Olga Lucía; Torres Acosta, Jairo HumbertoÍtem Modelo Logístico para la Distribución de Productos en el Sector Retail Dentro de una Red de Abastecimiento Dirigida por la DemandaGuarín Castro, Juan Sebastián; Lozano Palacios, Andrés Camilo; Torres Acosta, Jairo HumbertoThe work developed presents a solution to a vehicle routing problem for the distribution of products in the retail sector specifically in regard to home sales where customers can choose products from different supermarkets and these are taken to their place of residence. In this way the problem considers the restrictions of capacity of the fleet to use, the windows of time in which the demand of the customers must be satisfied, multiple origins being these the supermarkets, multiple destinies being these the clients, the collection and the Delivery of the products, being solved through a software programmed in Visual Basic of excel, which executes a heuristic based on a combinatorial analysis of exhaustive search to find the best route.Ítem Planeación Agregada de Costos: Procedimientos para la PYME Manufacturera Colombiana(Universidad Distrital Francisco José de Caldas) Torres Acosta, Jairo HumbertoÍtem Procedimiento para la planeación agregada en la pequeña y mediana industria manufacturera(Universidad Distrital Francisco José de Caldas) Torres Acosta, Jairo HumbertoÍtem Propuesta de un modelo de Rescheduling en ambientes flow shop para la minimización del tiempo promedio de flujo en condiciones estocásticasGuzmán Ruiz, Johana; Huertas Huertas, Cristian Camilo; Torres Acosta, Jairo HumbertoThe flow shop scheduling problem has been widely studied from the static and deterministic perspective, in this project it is intended to face the imminent complexity and uncertainty of the productive environment, from a rescheduling model in response to unexpected interruptions related to the arrival of new jobs and stochastic processing times. A genetic algorithm is used in order to minimize the expected value of the mean flow time. As a result, appropriate solutions are obtained in comparison with traditional techniques based on dispatch rules.Ítem Propuesta de una Metodología de Planeación de la Demanda en la Línea de Producto Flux Cored Wire en la Compañía Soldaduras West ArcoContreras Sáenz, César Augusto; Torres Acosta, Jairo HumbertoIn the present internship project, a demand planning methodology was developed for the top products of the Flux Cored Wire line, a high-performance welding wire marketed by Welding West Arco. For the development of the project were taken as reference academic books related to the topic of planning and administration of the demand and information learned in the course Management of operations of the industrial engineering curriculum project. The methodology begins with the definition and analysis of the problem, where the importance of improvement in the planning and inventory system for the FCW product line was identified; Established the requirements is to perform the collection and analysis of the information to consolidate the data that will serve as input into the deployment and application of forecasting models. Based on established forecasting methodologies, a proposed method for demand planning is defined, a method that was developed in conjunction with the teacher director for the specific problem of the product line. Under the time series scheme the proposed methodology is applied for the built-in forecast methods: Regression methods, moving average, simple exponential smoothing, double exponential smoothing, Winters method and Box & Jenkins. The generated results of the planning are analyzed for each product and an inventory model is developed according to the established requirements, finally a comparison of the current model applied by the company and the proposed method is made, contrasting the performance of each model with the Results generated in the performance measures.Ítem Proyecto de emprendimiento EMEIAR AND OUELAIHerrera Cuenca, Diego Alejandro; Torres Acosta, Jairo HumbertoThis project of entrepreneurship is an initiative to export special cacao to Europe, making a trust network between chocolatiers of France and Belgium and the enterprise, being different of others enterprises in the processes of post-harvest especially in the fermentation process to improve the flavor of cacao, important part of the qualityÍtem Scheduling and shop floor control by means of the modified algorithm of Kaspi-Montreuil and queues theory for an job shop ambient(Universidad Distrital Francisco José de Caldas) Torres Acosta, Jairo Humberto; Ahumada Quito, Diana Soraya; Medina García, Víctor HugoÍtem Sciences And Technological Of Information And Knowledge At Service Of The Engineering(Universidad Distrital Francisco José de Caldas) Medina García, Victor Hugo; Pérez Castillo, José Nelson; Torres Acosta, Jairo Humberto