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The main objective of this paper is to present a proposal aimed at improving the distribution and picking processes in a warehouse of an industrial company. Initially, it outlines the theory and problem to be solved, and concludes with a description of a case study. Warehousing activities affect the total logistics costs of a company or supply chain most; thus, optimizing the required spaces for warehousing is one of the most important activities when attempting to reduce operative costs in a company. The purpose of this study is to reduce the time required for picking activities and, therefore, obtain an improvement in the service and a reduction of the area used in the warehouse, which leads to cost reductions. [ABSTRACT FROM AUTHOR]

In this paper we describe the application of discrete event simulation for analyzing queues in a school restaurant. From these results we determine quantitative requirements for restaurant design including the randomness of each process and their interaction. Furthermore the use of graphic tools allowed a fruitful interaction with the team in charge of the architectural design. We show the model construction process, the diverse scenarios analyzed, and the selected configuration, which shows strong advantages against the current design. [ABSTRACT FROM AUTHOR]

In this paper we describe the implementation of a single-route city-bus timetabling LP model proposed by Riaño [15]. The aforementioned model considers stochastic issues like travel time and demand. A simulation model is also described, which was used to compare results from this model with others proposed in the literature. Preliminar results are promising. [ABSTRACT FROM AUTHOR]

The computational cost and complexity level of multiphysics analysis used in microsystems have demanded the creation of methodologies to create simplified models that provide accurate results in a fast and efficient way. These simplifications are known as the reduced order model (ROM) extraction. The ROM model captures lineal and nolineal behaviors accurately, in addition such a model is generated in a form that can be integrated into system level simulators. This paper introduces perhaps the most famous method to generate ROM models at the present. The method is applied to the analysis of a micro clamped-clamped beam electrostatically actuated, for this structure different simulations are performed; these analyses characterize the deflection of the structure for different kinds of voltage excitations. The outcomes demonstrate that sophisticated analysis can be carried out almost immediately once the ROM model is created. [ABSTRACT FROM AUTHOR]

Hybrid systems arise by the interaction between continuous dynamical systems and Discrete-event systems. This paper presents two modeling frameworks for this type of systems, in particular Mixed and Logical Dynamical (MLD) systems is explained. Then, model predictive control using MLD models is presented. The results are applied to a three-tank benchmark system as example. [ABSTRACT FROM AUTHOR]