Projeto e desenvolvimento de robô cartesiano de baixo custo para manipulação de produtos em linhas de média cadência

Pós-graduação em Engenharia Elétrica - FEB

A luta pela independência na Guiné-Bissau e os caminhos do projeto educativo do PAIGC: etnicidade como problema na construção de uma identidade nacional

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Projeto e construção de um dispositivo para testes em coluna vertebral

Pós-graduação em Engenharia Mecânica - FEG

A revista civilização brasileira: projeto editorial e resistência cultural (1965-1968)

During the first years of the military dictatorship, established in Brazil through a coup d'État, a number of institutions which repression had left unarticulated began a process of resistance and opposition to the military government. Cultural resistance was one of the consecrated forms of resistance that was exercised by intellectuals, artists, professors and cultural producers, among others, and that became an unprecedented political and cultural phenomenon in the country's history. Political, insofar as it aided in the process of re-organizing left-wing political parties and in the revision of the ideological postulates of its preeminent party, the PCB (Partido Comunista Brasileiro - Brazilian Communist Party). Cultural, because this re-organization occurred, frequently, within the ambit of cultural productions, in which the left created a space for contestation and engagement through the arts and intellectual activities. Within this process, between the years 1965 and 1968. The journal Civilização Brasileira became an important space for the building of leftist cultural resistance against the military dictatorship. The journal was able to impose its political legitimacy while at the same time participating actively in a market o cultural goods sustained by the so-called cultural hegemony of the left.

Determinação do fator de rigidez de junta aparafusada em tração utilizando o software Excel

When a bolted joint is loaded in tension with dynamically, part of this load is absorbed by the bolt and rest is absorbed by the joint material. What determines the portion that is to absorbed by the bolt is the joint stiffness factor. This factor influences the tension which corresponds to pre-load and the safety factor for fatigue failure, thus being an important factor in the design of bolted joints. In this work, three methods of calculating the stiffness factor are compared through a spreadsheet in Excel software. The ratio of initial pre-load and the safety factor for fatigue failure depending on the stiffness factor graph is generated. The calculations for each method show results with a small difference. It is therefore recommended that each project case is analyzed, and depending on its conditions and the range of stiffness values, the more or less rigid method about the safety factor for fatigue failure is chosen. In general, the approximation method provides consistent results and can be easily calculated