Dissertações não defendidas no IFAL

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Navegando Dissertações não defendidas no IFAL por Autor "Ávila Filho, Salvador"

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    Análise do discurso do operador e seu instrumento de comunicação entre turnos como ferramenta para o sistema de gestão
    (INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2016-06-06) Drigo, Edmara dos Santos; Oliveira, Cristiano Lessa de; http://lattes.cnpq.br/1436093029977246; Ávila Filho, Salvador; https://orcid.org/0000-0002-5006-1501; http://lattes.cnpq.br/8080668192694401; Marques, Sheyla Karolina Justino; https://orcid.org/0000-0001-7554-2275; http://lattes.cnpq.br/3917387578549073; Costa, Israel Crescencio da; http://lattes.cnpq.br/7663274879776157; Esquerre, Karla Patricia Santos Oliveira Rodríguez; https://orcid.org/0000-0001-8799-7365; http://lattes.cnpq.br/1956096628005272; Fleming, Paulo Victor; http://lattes.cnpq.br/1313976268089270
    Communication in organizations is still a difficult obstacle to be transposed. Effective instruments for transmission of information and the advent of technologies still need to rely on motivational and highly subjective factors that will make a man in his job routine report abnormalities or shut. Considering the operator discourse as a valuable tool for abnormalities display operational plan and support for decision-making in the management field, this dissertation aimed to analyze the communication between operators and shifts in a Water Treatment Plant (WTP) in the Northeast of Brazil. Problems in the information flow can result in operational failures in this case represent a risk to public health. The qualitative and quantitative analysis of records of operators and their communication tool show weaknesses in the shift book format used in WTP in question. The analysis of the text written by the operators based on analytical categories of Critical Discourse Analysis suggests the existence of conflicts that affect the organizational climate. We proposed a model instrument for communication in turn in checklist format to replace the typical procedure in narrative style. Although the focus of this work is the written speech, the operator’s speech in all its forms, can contribute significantly to the management system, but this management style should consider issues relating to human reliability and be willing to make procedure and structural changes.
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    Modelagem e Simulação de Indicadores de Continuidade: Ferramenta Auxiliar para a Manutenção em Redes de Distribuição de Energia Elétrica
    (2017) Magalhães, Emerson Felipe Araujo; Costa Filho, Marcus Vinícius Americano da; Magalhães, Robson da Silva; Pontes, Karen Valverde; Ávila Filho, Salvador; Oliveira, Tiago Cordeiro de
    The reliability of the electricity distribution systems is associated with the many investments that are implemented, specifically when the design of new projects and during the programming of maintenance activities. The Brazilian electric sector has been experiencing countless problems over time, with the greatest of these problems related to the constant failures in the distribution system. Occurrences of these failures influence the composition of the continuity indicators of Equivalent Duration of Unit Interruption Consumer (DEC), and Equivalent Frequency of Interruption of Unit Interruption Consumer (FEC); which are established by the National Electric Energy Agency (ANEEL), for each concessionaire, and if they are not fulfilled, the concessionaires will be subject to fines. This work proposes the development of models, using Multiple Linear Regression techniques (MLR) and Artificial Neural Networks (ANNs), which predict the values of these continuity indicators, aiming to assist the concessionaire in carrying out a more efficient planning for performing maintenance tasks. As an object of study, a collection of consumers was used from a concessionaire in the Northeast region. From the modes of failures occurring in the circuits that feed this set of consumers, the causes and frequencies of interruption in the electricity supply are analyzed, and how much these contribute to the increase in the values of DEC and FEC. Through the application of the developed models, you can evaluate the influence of certain modes of failures on DEC and FEC, prioritizing maintenance tasks in the equipment that contribute to the composition of these indicators. It is demonstrated that the knowledge of the influence of the modes of failures on the DEC and FEC indicators allows a proper decision-making on the implementation of maintenance actions, enabling the concessionaire to perform an efficient operation on those modes of flaws that are more and contributing to the operational stability and reliability of the entire electrical system.