https://repositorio.uema.br/jspui/handle/123456789/1913 2026-04-06T06:04:02Z https://repositorio.uema.br/jspui/handle/123456789/5860 Título: Geração de energia elétrica através da utilização de um gerador termoelétrico acoplado no sistema de escape de um motor a diesel Abstact: The electric energy consumed by society today comes largely from natural resources that are limited, and so the development of alternative sources of electric energy is of great importance. This work aimed to mount a thermoelectric generator in the exhaust system of an internal combustion engine, thus using the thermoelectric effect to generate electricity in a clean way. Through experimental trials it has been possible to demonstrate that such a generator can be able to serve as a small source of clean energy generation and may even be used in vehicle engines by converting the thermal energy wasted daily by these vehicles into useful electrical energy 2017-01-01T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/5803 Título: Estudo de ensaios de ventiladores centrífugos utilizando método AMCA Abstact: According to the experiments carried out, it is safe to say the operation of the machine along with its yields and powers, showed satisfactory results and we can use the machine for further work and practical classes in the mechanical engineering course, among others. The performance curves, potencies, pressures were all carefully studied and well reported and could be even better with instruments of high performance and precision, leading to even more satisfactory results, which shows the equipment itself presents some decadences such as part of instrumentation, electrical and mechanical but even then it was possible to perform the work and made the whole study with the data collected and the results completed and reported in the scope of this work 2017-06-30T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/5696 Título: Poder judiciário e melhoria na gestão: uso de ferramentas de qualidade em um juizado especial Abstact: This paper aims to introduce quality improvement mechanisms in the procedures process of a judicial structure, seeking continuous improvement and the effectiveness of results. It is found that the poor response of the courts, difficulties in achieving the procedures and the lack of efficiency in achieving the expected results under the bureaucracy, which has caused dissatisfaction of the users of the courts, despite the huge amount of resources involved. Thus the use of 5S quality tool and other the structure of a Small Claims Court enables an improvement in production processes and providing efficiency in public service 2015-01-01T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/5598 Título: Estudo da formação da aresta postiça de corte: suas influências sobre os parâmetros de usinagem Abstact: There are a number of undesirable factors in the machining process that may influence in the quality of the final product. Among this range of factors, this paper focuses primarily on study the mechanism of formation of the built-up edge (BUE). To assist in the understanding of this study, was analyzed the necessary cutting conditions for the emergence of this phenomenon. Factors such as cutting temperature, cutting speed, workpiece material, the magnetic field, plastic flow, adhesion of the workpiece material on the tool edge and the appearance of microcracks in the workpiece, have proven their influences on the formation of BUE. In addition to the factors that influence on the formation of the BUE, it was also studied the changes in the cutting parameters that it provides during the machining processes. Parameter such as the rake angle, shear force, shear angle, cutting speed, cutting tool wear and poor surface finish, are directly affected by the BUE. However the poor workpiece surface finish and accelerated wear of the cutting tool are undoubtedly the worst damage caused by the appearance of the BUE, since they have a greater influence on the production costs. Therefore, it was also necessary to study the methods used to eliminate or reduces the BUE in machining processes. Methods such as a increasing in the cutting speed, the coating of the cutting tool by thermal treatments and the use of cutting fluids, exert great influence against the BUE formation and the damage caused by it. In this context, it is important to highlight the important role played by the cutting fluid, which even although not avoid the appearance of the BUE, during machining in the presence of this phenomenon, the use of it reduces the adhesion of detached fragments of the BUE on the surface of the piece, and consequently reducing the roughness of it 2015-01-01T00:00:00Z