Melhoria da qualidade de um processo de usinagem utilizando as técnicas de avaliação de Taguchi

Delivering to the customers a product or service with the expected quality associated to the huge competitiveness that exists in the market nowadays, has been making organizations increasingly focus on quality planning using techniques which are directed towards the continuous improvement process and production optimization. Thus, this paper aims to improve a machining process using the techniques of experimental design to the optimization and this also includes the analysis of the measurement system. For this purpose, the alloy Nimonic 80A, a nickel base superalloy, was used in the process due to its widespread use for high temperatures, applying this study the robust method proposed by Genichi Taguchi, determining the influence of the factors considered input variables, cutting speed, feed rate, depth of cut, type of tool, lubrication, and material hardness, in the output or response variable, surface roughness, concluding with the use of Taguchi orthogonal array L16 and by analysis of ANOVA that the factor feed rate is significant and offers greater effect on the response variable studied, should be set to 0,12mm/rev. Moreover, the factor type of tool has more influence on the process when compared to other factors, being CP250 the one more suitable to the process. Lastly, the interaction feed rate x cutting speed provides greater significance in the process regarding to surface roughness variable, being the best match between them 0,12mm/rev to the feed rate and 90m/min to the cutting speed. In order to evaluate the measurement system, it was applied the repeatability and reproducibility method (R&R), through which we saw that the system needs improvement (R & R = 88.04% >>> 30%) as the value found in the study was well above compared to the one that classifies the system as inappropriate

Utilização de técnicas de planejamento de experimentos na análise de viabilidade de alterações no processo de pintura de grades Antracite em uma indústria automotiva

The search for better performance and competitive advantage in the current market scenario has made organizations keep their focus on quality planning and the use of effective techniques aimed at continuous improvement and optimization of processes and resources. The situation is not different for the painting process in the automotive industry, which has a significant amount of variables and influential external factors. This work, developed at General Motors in São José dos Campos, aims to analyze the feasibility of changing the painting process of the pickup S10 railings in the Antracite color located in the main line to the another line located in a Painting Repair Booth at the plant and, therefore, to study the possibility about reducing the window of cure for Antracite’s enamel by using Design of Experiments’ techniques. Applying this method is possible to find the best arrangement among studied factors of Painting Repair Booth that are, in this case, the Temperature, in Celsius degrees, and Skid’s Steps, in seconds, and it’s also possible to get their behavior according to quality requirements specified by GM rules for the Brightness and Paint Adhesion on the part. As a result, it can conclude that is possible to paint the S10 Antracite railings in the painting process’ line of Painting Repair Booth, and with the new configuration obtained by the Design of Experiments for the process variables, there are significant gains related to the parts’ quality, costs reduction and the optimization of production capacity, much in the main line as in the line of the Painting Repair Booth

Influência da suplementação sobre estresse oxidativo e processo inflamatório renal de animais com sobrecarga nutricional

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Natural compounds isolated from Brazilian plants are potent inhibitors of hepatitis C virus replication in vitro

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Unusual C,O-fused glycosylapigenins from Serjania marginata leaves

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Degradação de efluentes da indústria têxtil pelo processo eletrolítico e avaliação ecotoxicológica em diferentes níveis tróficos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Eficácia de um gel com reduzida concentração de fluoreto suplementado com hexametafosfato de sódio sobre o processo de desmineralização do esmalte dentário: estudo in vitro

Pós-graduação em Ciência Odontólogica - FOA

Alterações em marcadores do estresse oxidativo ocasionadas por diferentes tempos de tratamento com chá mate (Ilex paraguariensis) no processo de envelhecimento

Pós-graduação em Ciências fisiológicas

Implicações socioculturais do processo de ensino de português para falantes de outras línguas no contexto virtual do Teletandem

This study aims to discuss, by assuming the perspective of the Discourse Analysis, the social and cultural implications of the process of teaching Portuguese to foreigners in the virtual context of Teletandem. It also intends to evaluate the levels of Critical Language Awareness presented by the participants, in relation to the linguistic, discursive and social dimensions of the analysis. The data were collected in 2011 in interactions between students from Unesp/Assis and students from North-American universities. The research has been guided by the following questions: (a) how social and historical changes are reflected in language uses; (b) how these implications appear in the context of Teletandem; (c) how is it possible to evaluate the levels of Critical Language Awareness between the participants related to the social dimension of the discourse.

Adaptação marginal do agregado de trióxido mineral com e sem cloreto de cálcio em retrocavidades

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Biodessulfurização do biogás gerado no processo de digestão anaeróbia da estação de tratamento de efluentes de uma indústria cervejeira

Pós-graduação em Química - IQ

A Competência em informação para a construção de conhecimento no processo decisório: estudo de caso na Duratex de Agudos (SP)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Da receita à paixão: a mise en abyme em Clarice Lispector

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito da vitamina C e triptofano no desempenho, comportamento e parâmetros de estresse de frangos de corte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O lúdico no processo de desenvolvimento humano no ensino fundamental dos anos iniciais

This work was to study how the playful approach occurs in schools in the cycle of Fundamental Education. Know childhood representations from the rise till the present, the importance of playfulness in the formation and development of the child, also investigated the role of schools in the contribution to the process of human development, in view of the process through which pass the grown up most children of the age group studied. The methodology consisted of bibliographical and documentary research on related topics and field research with participant observation with children six years old in the first year of elementary school and conducting semi-structured interviews with teachers of a public school in the city of Bauru. Also analyzes the concepts of teachers on the playful using semi-open interview as the initial resource. We found that 40% of participants are unaware of such term and work with the playful from time to time in the classroom. The introduction of recreational activities in school had a satisfactory repercussion with the entry of other classes in the course of project development. Students were involved, participated in the whole process. However for the playful become effective in school, there must be enough basic training and also continuous education to teachers to break with paradigms crystallized in their teaching practices. Also and above all that, public policies have to consider the children and the children before they become adults as beings with their own identity