2 resultados para Quality planning control

em Repositório Científico da Universidade de Évora - Portugal


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Este estudo apresenta um diagnóstico de situação das Bibliotecas Públicas portuguesas face aos Sistemas de Gestão de Qualidade (SGQ) e a avaliação de indícios de emergência de qualidade neste tipo de bibliotecas, tipificando os diferentes tipos de emergência diagnosticados, identificando os factores que impulsionam a implementação dos SGQ, os motivos de recuo e/ou avanço para uma gestão de qualidade. É estabelecida a ligação ao percurso da qualidade na Administração Pública em Portugal, com vista a contextualizar o presente trabalho e entender o aparecimento de Sistemas de Gestão de Qualidade. Apresentam-se razões que justificam a lentidão da prevista e anunciada proliferação de Sistemas de Gestão de Qualidade nas Bibliotecas Públicas portuguesas (como se previa há uma década atrás), referenciando de forma sucinta alguns dos diferentes modelos de gestão de qualidade validados que se encontram implementados tanto no nosso país como no estrangeiro. ABSTRACT: This study presents a diagnostic explanation on the situation of the Portuguese Public Libraries, taking into consideration the system of Managenent Quality Control (SGC) and the evaluation of the emergence of quality in these types of libraries, typifying the different types of forthcoming diagnostics, identifying the factors that started the implementation of the SGC and the reasons of the withdrawal and advancement towards quality management. A synopsis of the quality of Public Administration in Portugal has also been made, with the idea of putting into context the current work and understanding up to what point this forced the arrival of the system of Management Quality Control and, in a way, try to find the reasons that justify the slowness of the arrival of the system of Management Quality Control in the Portuguese Public Libraries (as was predicted almost a decade ago). Throughout this document references and explanations will be made, in a succinct way, of some of the different forms of validated Quality Management Control that are to be found in our country, as well as abroad.

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Regarding canal management modernization, water savings and water delivery quality, the study presents two automatic canal control approaches of the PI (Proportional and Integral) type: the distant and the local downstream control modes. The two PI controllers are defined, tuned and tested using an hydraulic unsteady flow simulation model, particularly suitable for canal control studies. The PI control parameters are tuned using optimization tools. The simulations are done for a Portuguese prototype canal and the PI controllers are analyzed and compared considering a demand-oriented-canal operation. The paper presents and analyzes the two control modes answers for five different offtake types – gate controlled weir, gate controlled orifice, weir with or without adjustable height and automatic flow adjustable offtake. The simulation results are compared using water volumes performance indicators (considering the demanded, supplied and the effectives water volumes) and a time indicator, defined taking into account the time during which the demand discharges are effective discharges. Regarding water savings, the simulation results for the five offtake types prove that the local downstream control gives the best results (no water operational losses) and that the distant downstream control presents worse results in connection with the automatic flow adjustable offtakes. Considering the water volumes and time performance indicators, the best results are obtained for the automatic flow adjustable offtakes and the worse for the gate controlled orifices, followed by the weir with adjustable height.