Aplicação da metodologia seis sigma em uma empresa de médio porte do setor têxtil

The Six Sigma methodology has received considerable attention in the last two decades. This is due to its great potencial to reduce processes variability, through the use of accurate data, facts and statistical techniques. The methodology seeks to improve the quality of products and services, maximizing the company s financial performance. Specifically, its implementation and results in medium-sized textile enterprises is unknow, although there are signs that the methodology can be applied with success. Considering this scenario, the goal of this research is to describe the application of the Six Sigma methodology in a médium-sized textile company specialized in the production of male shirts in the satate of Rio Grande do Norte, Brazil. First, we present a literature review, seeking to highlight the themes of quality, Six Sigma and its methodology for improvement. Then, we show the implementation of the project selected, depicting the steps and procedures that must be performed. The results confirm the efficiency of Six Sigma in providing significant gains to companies. It is observed substantial improvements in the speed of product development and the flexibility of the parts produced, reducing the process lead time from 12.5 to 6.2 days, which means a performance improvement of over 50%. This leads also to cultural and behaviour change, creating motivation for implementation of new projects and a continuous search for knowledge

Uma avaliação comparativa de estratégias de arranjos físicos para estaleiros de construção de embarcações metálicas de pequeno porte

The present study aims to analyse, in different levels of demand, what is the best layout strategy to adopt for the small metallic shipbuilding. To achieve this purpose, three simulation models are developed for analyze these production strategies under the positional, cellular and linear layouts. By the use of a simulation tool for compare the scenarios, Chwif and Medina (2010) and Law (2009)´s methodologies were adapted that includes three phases: conception, implementation and analysis. In conception real systems were represented by process mapping according to time, material resources and human resources variables required for each step of the production process. All of this information has been transformed in the cost variable. Data were collected from three different production systems, two located in Natal RN with cellular and positional layouts and one located in Belém-PA with linear layout. In the implementation phase, the conceptual models were converted in computacional models through the tool Rockwell Software Arena ® 13.5 and then validated. In the analysis stage the production of 960 ships in a year vessels were simulated for each layout noting that, for a production of until 80 units positional layout is the most recommended, between 81 and 288 units the cellular layout and more than 289 units the linear layout

Análise de desempenho de um refrigerador de pequeno porte com drop in de refrigerantes hidrocarbonetos

From what was stated in the Montreal Protocol, the researchers and refrigeration industry seek substitutes for synthetic refrigerants -chlorofluorocarbons (CFCs) and HCFCs (HCFC) - that contribute to the depletion of the ozone layer. The phase-out of these substances was started using as one of the replacement alternatives the synthetic fluids based on hydro fluorocarbons (HFCs) that have zero potential depletion of the ozone layer. However, contribute to the process of global warming. HFC refrigerants are greenhouse gases and are part of the group of gases whose emissions must be reduced as the Kyoto Protocol says. The hydrocarbons (HC's), for not contribute to the depletion of the ozone layer, because they have very low global warming potential, and are found abundantly in nature, has been presented as an alternative, and therefore, are being used in new home refrigeration equipment in several countries. In Brazil, due to incipient production of domestic refrigerators using HC's, the transition refrigerants remain on the scene for some years. This dissertation deals with an experimental evaluation of the conduct of a drinking fountain designed to work with HFC (R-134a), operating with a mixture of HC's or isobutane (R-600a) without any modification to the system or the lubricating oil. In the refrigeration laboratory of Federal University of Rio Grande do Norte were installed, in a drinking fountain, temperature and pressure sensors at strategic points in the refrigeration cycle, connected to an acquisition system of computerized data, to enable the mapping and thermodynamics analysis of the device operating with R-134a or with a mixture of HC's or with R-600a. The refrigerator-test operating with the natural fluids (mixture of HC's or R-600a) had a coefficient of performance (COP) lower than the R-134a

Panorama dos resíduos sólidos urbanos nos municípios de pequeno porte do Brasil

The panorama of Urban Solid Waste (USW) in Brazil, in general lacks information, given the immensity of the country. However, it is from available data that the public executives should define the USW management. To contribute to the choice of a model for the management of USW in small municipalities, this study reviews the related literature, showing an overview of the final disposal of USW in small municipalities. Several data and researches are discussed, concluding that the available data, despite being provided by the public managers, who often attenuate the problem, should be considered for the proposition of policies to encourage the waste treatment

Estimativa do tempo de vida útil de represa de pequeno porte

The purpose of this work is to compare two methods for time estimation of useful life for a small and shallow reservoir, located in Pirassununga, São Paulo State, Brazil: 1) sedimentometry; and 2) bathymetry. The model indicated a useful lifetime around 50 years for the studied dam. The values are between 51 years for the initial years of 1998/1999, and 46 years for the final years of 2004/2005, with an oscillation between 1999/2000 of 27 years, and between 2000/2001 of 76 years. The results show that it is possible to estimate the useful lifetime for small dams through the sedimentometric method, by knowing the correction coefficient value (K'). The coefficient is calculated using time values of useful lifetime calculated by the sedimentometric and bathymetric methods simultaneously, during the span of one year.

Eficácia de fluridone para o controle de Egeria spp. em caixas d'água e em represa de pequeno porte sem fluxo de água

Pós-graduação em Agronomia (Agricultura) - FCA

Análise de investimentos para implantação de unidade industrial de pequeno porte de refrigerantes de acerola

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Mercados do empreendedorismo de pequeno porte no Brasil

Incluye Bibliografía

Mercados do empreendedorismo de pequeno porte no Brasil

Incluye Bibliografía

Proposta de abordagem metodológica para avaliação de desempenho na cadeia de valores aplicado em uma empresa de médio porte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Proposta de uma estrutura de gestão do conhecimento para uma empresa de grande porte do setor alimentício

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Propostas de solução para o problema de corte de estoque bidimensional de uma fábrica de móveis de pequeno porte

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Mapeamento da demanda de saúde mental infantil em um município de pequeno porte

Pós-graduação em Psicologia - FCLAS

Curtições, amizades e injúrias: as expressões de gêneros, sociabilidades, afetos e sexualidades entre garotos adolescentes do interior paulista em uma cidade de pequeno porte

Pós-graduação em Psicologia - FCLAS