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Modelo adaptativo fuzzy genético, preditivo e multiobjetivo para despacho de AGVs
(Universidade Federal de São Carlos, 2011-06-14) Caridá, Vinicius Fernandes; Morandin Júnior, Orides; https://lattes.cnpq.br/4192845106907956; https://lattes.cnpq.br/0843328163052788
In recent years, most companies apply techniques of industrial automation with the goal of increasing its efficiency. Increasingly Automated Guided Vehicles (AGVs) are used to transport work in factories and warehouses. The management of these AGV is the key to an efficient transport system. One of the main problems encountered in the management of AGV is the dispatching decision. This work proposes a method of dispatching of AGV with the ability to optimize the performance of flexible manufacturing systems (FMS) in real time. In the dispatching deciding can be chosen to optimize two objectives: makespan or tardiness. When the goal is to optimize the makespan are evaluated variables: distance, number of nodes, the input buffer and output buffer of the workstation. When the goal is to optimize the tardiness are evaluated variables: distance, number of nodes, task chaining, date of delivery. In both cases are also considered the time of the AGVs and the processing times of the workstations, so you can anticipate some decision-making. To perform the tests we used the softwares: Matlab, CPNtools and Automod, which allow simulations of how the method works dispatching AGVs before the method is implemented in factories. Based on the tests, we analyzed the improvement in makespan and tardiness compared to other studies, but also the flexibility of the method in which it is possible to exchange goals in operating time.
Trajetória e perfil dos adolescentes em conflito com a lei atendidos pelo NAI - São Carlos-SP
(Universidade Federal de São Carlos, 2011-06-14) Guimarães, Carlos Eduardo; Mancuso, Maria Inês Rauter; https://lattes.cnpq.br/3044299425417905
Abstract Segments of the teenager population in Brazilian cities are in situations of personal and social risk and some of these young people are involved in illegal activity. Each district, however, while sharing common factors of teenager vulnerability with others can have specific factors affecting the kind of infractions committed. Detailed knowledge of the context of a specific population is crucial to the implementation of public policies that answer the needs of that population. In Sao Carlos there is a Center for Integrated Procedures (Nucleo de Atendimento Integrado NAI) that channels centrally all the juvenile actions taken by official and unofficial institutions in that city. The Centre is, therefore, an important agency in the field of public policies toward the teenager population and a privileged source of data for those aiming to research the behavior of the adolescent population, since it collects all information about teenagers who break the law. Therefore, accessing these data by document analysis allowed the following objectives to be attained: i) to identify the infractions that led to teenagers being seen by NAI; ii) to analyze the changes over the years (from 2002 to 2008) in the incidence of these infractions; by surveying the literature, it will be possible (and this is the third aim of this study) to compare the results obtained in Sao Carlos with those in other towns Sao Paulo city, Brasilia and Ribeirao Preto and even with those in Sao Carlos itself in periods prior to the implementation of NAI. The literature review, focused on the question of social relations existing in the teenagers´ world, especially the types of vulnerability that put them at risk such as violence and their active or passive contact with drugs. This was an explanatory study and the quantitative data, taken from the period 2002 2008, were collected in NAI and organized with the computer package Statistica. The results were followed up by field research, based on a predefined questionnaire approved by the Research Ethics Committee of the University of Sao Carlos. Hence, the fourth objective was achieved: the interviews allowed the identification of the elements of teenager vulnerability, in other words those factors that led the adolescents to break the laws, as well as affording a more complete characterization of the interviewees.