906 resultados para Combustível, controle de qualidade, Brasil


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The constant search for improvement and survival of the companies makes essential the utilization of cost reduction strategies and resources optimization. This study had as its objective the utilization of Lean Manufacturing tools for the repair process lead time reduction, in a car audio manufacturer. Performing an action research, the major problems were studied, such as the potential causes and the possible improvement activities, using the DMAIC methodology. An action plan was developed for all involved processes and, as a result, the objective was reached by making a direct impact on the customers’ satisfaction and adding a competitive differential for the company

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A avaliação de impacto ambiental tem sido muitas vezes, vista apenas como um procedimento burocrático para a obtenção da licença ambiental, desconsiderando os estudos realizados, após a aquisição da licença e contratando outros serviços para orientar a adoção de um sistema de gestão objetivando boas práticas ambientais. Porém sabe-se que a estrutura geral das metodologias de avaliação de impacto ambiental apresenta muitos pontos semelhantes se comparada à identificação dos aspectos e impactos ambientais de um sistema de gestão ambiental, o que indica uma interface entre os dois instrumentos apesar da execução integrada ainda não ser um procedimento comum na gestão ambiental de empreendimentos. Nesse sentido, o presente trabalho objetivou analisar as possibilidades do emprego de um sistema de gestão ambiental preconizado pela ISQ 14001 para o gerenciamento de programas ambientais decorrentes de processos de avaliação de impacto ambiental e de licenciamento ambiental de usinas hidrelétricas, através do foco específico naqueles progrmas relacionados diretamente com o monitoramento e o controle da qualidade e da qualidade da água do reservatório, que é um fator essencial para a função de produção de um empreendimento hidrelétrico. Para esta análise, utilizou-se o caso da usina hidrelétrica de Santo Antônio, identificando 9 programas ambientais decorrentes de processos de avaliação de impacto ambiental com grandes possibilidades de serem utilizados na estruturação de sistemas de gestão ambiental de usinas hidrelétricas e cuja adequada execução, corrobora com a integração entre os respectivos instrumentos além de corresponder à necessidade de compatibilização dos instrumentos de política ambiental na busca de um desenvolvimento com adequada proteção ambiental e de uma atuação mais consciente das organizações

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The growing demand for quality at competitive prices and fast production process put to the test function in the industrial Maintenance. The need for equipment with high availability to fit this fierce competitiveness makes maintenance becomes essentially reliable. Despite this current context, many companies still have an old view of maintenance, focused only on corrective services, and proposals for change are often neglected due to the sense of urgency day to day. Thus, this study aims to demonstrate through theoretical applicability of simple tool, but of great value in increasing reliability within the maintenance sector of an industry, applying the concepts of Reliability Centered Maintenance – RCM and Analysis tool Failure Modes and Effects – FMEA in equipment of a chemical company directly involved in the manufacturing process of the brake fluid, which this product is used in vehicles around the country. That way, you can identify the types, occurrence and criticality of each failure and evaluate assertively decision making for each device, avoiding unnecessary downtime and potential failures of the same

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A Trimezia juncifolia (Iridaceae) é encontrada nas regiões tropicais e subtropicais e possui características muito próximas das plantas do mesmo gênero e família. Ela é utilizada pela população de Botucatu, São Paulo, para a depuração do sangue, para feridas intermitentes e como antiinflamatório. Por possuir interesse econômico primordialmente ornamental, são raros os estudos que a caracteriza, facilitando as complicações que podem ocorrer por trocas de espécies. Por causa disso, este trabalho tem como objetivos descrever a morfologia externa da Trimezia juncifolia, visando a caracterização da droga vegetal, e a anatomia das raízes, bulbo, caule aéreo e escamas do bulbo, visando uma descrição microscópica farmacopeica. A caracterização morfológica da planta foi feita com o auxílio de estereomicroscópio binocular. Para o estudo anatômico de Trimezia juncifolia (beressol), foram selecionados exemplares que contenham raízes, caule subterrâneo, e caule aéreo. Os catafilos, bulbo, raízes e caule aéreo foram divididos em terço apical, médio e basal. Com ênfase no caule subterrâneo, o bulbo e as raízes tiveram as três frações analisadas, e o catafilo, as frações média e basal. Somente o terço médio do caule aéreo foi analisado.O material foi fixado em solução de glutaraldeído e formaldeído. Em seguida o material foi conduzido às etapas de inclusão em resina (metacrilato). O material incluído foi seccionado em micrótomo de rotação. As secções dispostas em lâminas foram coradas com azul de toluidina pH 6,8. Mesmo com a descrição das frações medianas da raiz, bulbo, catafilos e caule aéreo, ou escapo, na discussão deste trabalho foi dada ênfase à análise do caule subterrâneo e raízes. Mesmo que popularmente a fração utilizada da planta seja o bulbo, essa análise se faz necessária para auxiliar o controle de qualidade... (Resumo completo, clicar acesso eletrônico abaixo)

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This work covers the methodology Six Sigma with the application of the steps Define, Measure and Analyze a company of steel tubes, with the objective of identify special causes in the process that drives the creation of the pore defect in the solder. It is highlighted the fact that this work is the base of an continuous upgrade project that aims in eliminating the occurrence of this defect. The motivation is given to the necessity of improving the productivity of the factory, considering that the defect occurs at random and your causes are unknown. This way, it was defined that the problem to analyze, measured the capability of the process in DPMO and analyzed with the aid of graph by attribute P. The results show the process that present special cases, as well as the process considered ideal, This way it was stated that in this work, the processes destabilized and the controlled, allowing a comparison of the characteristics for the elaboration of concise action plans to eliminate the defect. The project must follow the steps Upgrade and control the methodology Six Sigma, in order to ensure success in his execution, aiming to amplify the competitive edge of the business

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O nitrato de fenticonazol é um derivado imidazólico de amplo espectro de ação contra patógenos dermatófitos, como Malassezia furfur e leveduras, a principal delas Candida albicans. É necessário que se possa garantir a qualidade dos medicamentos produzidos. O controle de qualidade é uma ferramenta que assegura a qualidade, eficácia e segurança desses produtos até o momento de sua utilização e faz-se necessário que métodos analíticos sejam desenvolvidos e validados para o doseamento desses fármacos. A grande importância dos métodos microbiológicos utilizados no controle de qualidade de fármacos com atividade antimicrobiana é demonstrar sua atividade biológica por meio de seu efeito inibitório no crescimento de micro-organismo. A diminuição da atividade antimicrobiana ou potência pode indicar alguma alteração sutil na molécula, que é pouco detectável em um método analítico físico-químico. O objetivo deste trabalho foi desenvolver e validar o método microbiológico difusão em ágar para o produto nitrato de fenticonazol creme vaginal. O método de difusão em ágar foi desenvolvido utilizando meio de cultura ágar Sabouraud e cepa de Candida albicans ATCC 64548 como micro-organismo teste. Para o ensaio foi utilizado o delineamento 3 x 3, conforme preconiza a Farmacopeia Brasileira (2010). A validação do método proposto demonstrou linearidade entre os diâmetros dos halos de inibição e o logaritmo da concentração na faixa de 50,0 a 200,0 μg/mL. O método obteve resultados precisos e lineares com r2=1. A exatidão foi comprovada pelo intervalo de tolerância de 98,83%, dentro dos limites permitidos. O método foi validado de maneira satisfatória, podendo ser utilizado em análises do Controle de Qualidade deste fármaco.

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This study aimed to produce beer, using different botanical origins of honeys (orange, eucalyptus and wild), as malt adjuncts, and their Physical-chemical and sensorial characterizations. The production was made with malt, water, hops and honey. All musts were adjusted to 12 Brix, and the concentration of honey in the formulation was 45% (based on the extract), except for the control (0%). The physical and chemical analysis were performed on malt (extract content), honey (pH, free acidity, lactonic acidity, total acidity, color, turbidity, extract content, moisture content, reducing sugar, total reducing sugar and sucrose) in wort (content extract, pH, color, turbidity, fermentability ,bitterness and total acidity) and beer apparent extract, apparent fermentability, real extract, real fermentability, alcohol content, pH, total acidity, total foam, foam density , bitterness, carbon dioxide, color and turbidity). Sensory analysis was performed by nine-points hedonic scale testing. The attributes evaluated were appearance, aroma, flavor and overall. The results were submitted to ANOVA and means compared by Tukey testing at a 5% of probability. Beer with honey as adjuncts’ had high fermentability and low content of fat, compared to the pure malt beer. The addition of honey as an adjunct did not affect the majority of the physical-chemical parameters, except for turbidity, whereas beer with honey showed the highest value for this feature, in addition, it has also presented their biterness differences the values for beer with honey were lower. The different types of honeys did not affect the acceptability of beer, however, the beer with honey showed greater acceptance between beer with malt and honey

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The quality assurance control program (QACP) in clinical radiology is very important to acquire, image quality, patient dose reduction and cost for the institution. The verification of the real tension on the x ray tube, it is one of many parameters that may be determined on a QACP. This act on image quality as absorbed dose in patient. Once proved the importance of this fact, this study come up with the determination of tension to any X ray tube used on medical routine, on quick, safe and low cost manner. To reach the aim of this study, the methodology consisted on measuring expose rates (ER) using different thicknesses of copper (Cu) plates like filters and relating these results with Half Layer Value (HLV). Afterwards, the HLV was associated to real tension that was acquired with kilo voltage of peak (kVp) measurers used on clinical routine. So walking in this path, when performed the ER, on any X ray tube, it’s possible acquire the HLV and consequently the real kVp, considering measures obtained before, on the methodology of kVp estimative development

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The constant search for improvements and the survival of organizations makes the strategic guidelines are deployed and executed at the operational levels. This work is the approach to critical analysis of the equipment of a chemical industry through a case study based on the classification of each equipment manufactures through qualitative and quantitative analysis on the pillars of maintenance costs, loss of production, MTBF, contribution margin, Health Safety and Environment (SHE). From this study and future data collection, along with the flow diagram show the main equipment that should be special attention. To this can be prepared an action plan with deadlines and responsible. With the results one can measure the maintenance costs, loss of production and technical availability of the plant, with future gains

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This work was developed in order to reduce the discrepancy found between the stock data of an item in the system and the amount found physically in stock in the company presented on this study case. Therefore, this paper makes a study on system of information that can assist in the collection, control and manipulation of data regarding the company's stock. It is very important to do the inventory management, so we can control the level of this sub-product to meet sales orders and production. In the study discussed below, we used the Six Sigma methodology to identify points that had flaws in the process and thus improve their work where the results show grater process control and provide a reliable database to the point where no further problems of lack of components in stock

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O ofloxacino, uma fluorquinolona de segunda geração, foi sintetizada em 1982, apresenta eficácia e segurança no tratamento comprovadas. A determinação da potência dos antimicrobianos é importante no controle e na garantia da qualidade das preparações farmacêuticas e faz-se necessário o desenvolvimento de procedimentos práticos e econômicos que possam ser validados e aplicados no doseamento desses fármacos. Dentre os ensaios microbiológicos, os mais comumente empregados são o de difusão em ágar e o turbidimétrico. Na literatura, apenas são encontradas descrições de ensaios para o ofloxacino utilizando o método de difusão em ágar. O método turbidimétrico tem como uma das principais vantagens, a necessidade de menor tempo de análise. O método consiste na avaliação quantitativa de substâncias em função da turbidez de suas suspensões, proporcional a seu poder de difração sobre luz incidente (efeito Tyndall) (FB 5, 2010). O objetivo desse trabalho foi desenvolver um método microbiológico analítico para quantificação do ofloxacino que possa ser usado para análises rotineiras em laboratórios de controle de qualidade. Os parâmetros estudados para a validação do método analítico para quantificação do ofloxacino não atenderam a todas as especificações recomendadas. Assim sendo, pode-se concluir que este trabalho de conclusão de curso, não conseguiu atingir seu objetivo que era de desenvolver e validar uma metodologia analítica. O método demonstrou desenvolvimento complexo e trabalhoso e não apresentou o paralelismo e exatidão necessários para validação

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TThis work deals with present how to increase the accuracy of productivity indicators, aiming to increase the information accuracy of performance indicators and propose improvements to the process in question, more specifically to improve the visualization of information from these indicators for all hierarchical levels of the company, and then make possible use them to assist in the processes of decision making and planning of the production process. We start with an analysis of the current process to be studied seeking sources of information losses during the production process. Afterwards, a specific analysis of the points considered critical, so alternatives are raised for improvements to these points. This project has some specific tools and methodologies that guide the development of work which are required of any project carried out in the company

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Control charts are very important tools in statistical quality control of industrial processes and its use started last century. Since its development, the charts have always been attributed to independent processes, i.e. without any correlation between samples. But nowadays, with the high level of automation in the industrial environment, it is noticeable the autocorrelation factor between samples. The main Xcharts used in monitoring quality characteristics represented by continuous variables are the mean (X ), amplitude (R) and variance (S²). Therefore, this work aims to analyze the performance of X and R charts and in of X and S² charts with different sample sizes (4 and 5) for monitoring autocorrelated processes. Through computer simulations using the Fortran software and the use of mathematical expressions was possible to obtain data and performance analysis of the detection power charts for independent observations and for autocorrelated observations according to the model AR (1). The results show that the effect of autocorrelation reduces the ability of monitoring the control charts and that, the greater this effect, the slower the chart becomes in misfits signaling

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This thesis aims to analyze the applicability of Lean Six Sigma and DMAIC to improve processes focused on agriculture. We discuss the origins of each system separately, Lean Manufacturing, the Toyota plants in Japan, and Six Sigma, by Motorola in the U.S., and then appears to merge them and can meet their complementarities and synergy between their tools. Finally, we describe a case study focused on the harvesting department, applicable to all types of manuals crops, covering the production of fruits, vegetables and greens. This study shows the ability to reduce costs, increase productivity and elimination of defects that the methodology developed with the fusion of Lean Manufacturing with Six Sigma allows

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A company must have full knowledge and control of its operations so as to meet the market requirements and meet their production goals. Thus this paper uses the Taguchi method to extend the operational control of a cutting process by fusion of a synthetic fabric in the longitudinal direction. For process analysis and tracking of possible causes of the problem techniques of Production Engineering as the cause and effect diagram, also known as Ishikawa diagram, and design of experiments were used, the last one was applied to the design techniques of Taguchi. Finally the preparation method of understanding and design of experiment was due to the use of the software MINITAB v15 ®, which showed that the speed of rolling the fabric after cutting is crucial for controlling the entire operation