Dissertações em Engenharia Mecânica (Mestrado) - PPGEM/UNICAMP
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/9630
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Dissertação Acesso aberto (Open Access) Desenvolvimento de um método para a análise da solidificação de metais superaquecidos em moldes cilíndricos refrigerados(Universidade Estadual de Campinas, 1983) MOREIRA, Antonio Luciano Seabra; SANTOS, Rezende Gomes dos; http://lattes.cnpq.br/8824197696621614This work presents a theoretical-experimental study on the solidification of metals, initially at a temperature above the melting point, in cooled cylindrical moulds. A literature survey was carried out regarding the heat transfer methods applied to solidification in metal/mould systems. Using a radial water cooled device simulating the solidification of cylindrical geometries, experimental values of the solidified thickness as function of time were obtained. A method was developed to analyse the solidification kinetics of superheated metals in cooled cylindrical moulds and the predictions furnished by this method were compared with the experimental data. Possible applications of the proposed method to the solution of practical problems in the foundry process 3re presented. Finally a comparative study of the solidification kinetics of solidified metals in plane, cylindrical and spherical geometries is presented.Tese Acesso aberto (Open Access) Práticas do pensamento enxuto em ambientes administrativos: aplicação na divisão de suprimentos de um hospital público(Universidade Estadual de Campinas, 2007-03-21) LIMA, Adalberto da Cruz; LIMA, Paulo Corrêa; http://lattes.cnpq.br/8631074171256726This work has for goal introduces the lean thinking implementation in ssrvices administrative environments. The studied environment has like characteristic in the Material Supplies area, of public hospital. For so much, it used of the scientific methodology through the research-action strategy and of the modern managerial administration systems integration, suches like: Quality magement system, magement information system and magement system people like support base to the philosophy lean thinking implementation. The research study period, it began in 2003 and extended until final of 2005, with perfect interaction between researcher and the involved subjects. The found results were going collected and analyzed through technical of research for observation participate. Collaborators' participation was very important for the lean thinking implementation success in this sector. The data were going compiled in graphific of control for changes evaluation obtained along the project, changes in the organizacional structure and managerial also introduced significant results, as well as the results in the acquisition process. The work provided to the Supplies Division collaborators, they try new forms of managing the administrative process, fact this very debated.