Efeito da centrifugação e filtragem do sêmen bovino sobre a criopreservação espermática

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização da função Desirability em um processo de fundição de aço ABNT 1030

This dissertation addresses the main theme the use of desirability tool in optimizing a process with multiple response variables. The current scenario of strong bids to conquer the consumer market makes it necessary to develop improvements for better process performance as a whole, is to cut costs, increase efficiency or effectiveness. Thus, the use of methods to assist in this process is becoming increasingly feasible. This study used the MINITAB program and the data of the doctoral thesis of Dr. Luiz Henrique Dias Alves, in order to compare the results obtained in both studies. As a result, after applying the desirability method, simulated to optimize two responses variables regarding the formation of voids related to solidification in ABNT 1030 steel casting process. Thus, it was possible to evaluate the behavior of the variables with the variation of parameters of the desirability function

Construção Enxuta e a utilização dos seus conceitos por construtoras paulistas certificadas segundo o PBQP-H e o QUALIHAB

The civil construction sector has been stimulated to industrialize itself by the adoption of Lean Construction practices in its constructive process. Given this fact, this research verify and identify Lean Tools and the level of application of these Tools in construction companies in the State of São Paulo, in order to be able to notice which Lean Concepts generate the highest benefits to these companies. The research method used was a survey applied only between construction companies that have some type of quality certificate. From the results, a data analysis was made in order to note the constructor's situation in relation to Lean Construction and, based on this analysis, verify the impact of the Lean Principles on the competitiveness of these companies and on the business performance. This way, it was possible to note a high level of application the Lean Tools by the responding companies. It also became clear, by means of this work: the strong influence of the concepts of Flow, of Continuous Improvement and of methods of prevention and resolutions of problems on the overall companies performance