958 resultados para Indústria - Métodos de produção


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A experimentação industrial é um método científico de aprendizagem que visa aprimorar conhecimentos sobre o funcionamento de sistemas, almejando redução de variabilidade e incertezas nos processos produtivos. Em inovação, constitui-se como uma oportunidade de teste e pré-implementação, permitindo à empresa aperfeiçoar seus projetos de inovação antes de levá-los ao mercado. Contudo, para que empresas obtenham sucesso em inovar, faz-se necessário um ambiente favorável à inovação, considerando que a cultura organizacional impacta diretamente no potencial inovador. Uma cultura de inovação bem desenvolvida demanda o envolvimento de todos os líderes da empresa atuando como facilitadores do processo. Nesse contexto, esta pesquisa tem como propósito avaliar o perfil da cultura organizacional visando o uso de experimentação no processo de inovação em uma indústria do ramo alimentício no Estado do Rio Grande do Norte. Para tanto, busca-se, por meio de fundamentação teórica, ampliar a compreensão da relação existente entre os temas experimentação, inovação e cultura organizacional, e tem-se como método de pesquisa, uma abordagem quanti-qualitativa em um estudo de caso. Os dados para análise da pesquisa são coletados por meio de entrevistas e aplicação de questionários. Para avaliar a cultura organizacional, utiliza-se como instrumento o questionário baseado no Modelo de Valores Competitivos, desenvolvido por Cameron e Quinn (2006), aplicado com os líderes na empresa em estudo. Este instrumento, denominado OCAI (em inglês Organizacional Culture Assessment Instrument), permite diagnosticar o perfil da cultura organizacional e da cultura da qualidade no cenário atual e no contexto ideal, a partir da percepção dos líderes da organização. Para análise dos dados, utiliza-se a técnica de análise de agrupamento, que permite avaliar a homogeneidade das opiniões dos líderes. Os resultados apontam, conforme a visão dos líderes, a necessidade de mudança no perfil cultural organizacional da empresa em estudo, de uma cultura em que predominam elementos da cultura de mercado (cenário atual) para uma cultura com maior ênfase em elementos da cultura clã e inovadora (cenário ideal), bem como uma cultura de qualidade que estimule a inovação, favorável à geração de ideia e conhecimento, a melhoria contínua e a busca por soluções criativas

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This study presents a comparative analysis of methodologies about weighted factors considered in the selection of areas for deployment of Sanitary Landfills, applying the methodologies of classification criteria with scoring bands Gomes, Coelho, Erba & Veronez (2000); Waquil et al, 2000. That means, we have the Scoring System used by Union of Municipalities of Bahia and the Quality Index Landfill Waste (IQR) which are applyed for this study in Massaranduba Sanitary Landfill located in the municipality of Ceará Mirim /RN, northeastern of Brazil. The study was conducted in order to classify the methodologies and to give support for future studies on environmental management segment, with main goal to propose suited methodologies which allow safety and rigor during the selection, deployment and management of sanitary landfill, in the Brazilian municipalities, in order to help them in the process to extinction of their dumps, in according of Brazilian Nacional Plan of Solid Waste. During this investigation we have studied the characteristics of the site as morphological, hydrogeological, environmental and socio-economic to permit the installation. We consider important to mention the need of deployment from Rio Grande do Norte State Secretary of Environment and Water (SEMARH), Institute of Sustainable Development and Environment of RN (IDEMA), as well, from Federal and Municipal Governments a public policies for the integrated management of urban solid waste that address environmental preservation and improvement of health conditions of the population of the Rio Grande do Norte

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This Master of Science Thesis deals with applying DEA (Data Envelopment Analysis) to the academic performance evaluation of graduate programs in Brazil, exploring it on a Mechanical and Production Engineering Program 2001-2003 data. The data used is that of the national assessment carried by CAPES, the governmental body in charge for graduate program assessment and certification. It is used the CCR output oriented DEA model, the CCR-Output with Assurance Region, and Window Analysis. The main findings are first that the CCR has the concerning problem of zero values of weights of outputs that is not appropriate in a sense that a graduate program has the higher efficiency score zeroing some output (e.g., number of academic papers published). Secondly, the Assurance Region method proved useful. Third, the Window Analysis also gave some light to the consistency of the performance in the time frame analysed. Also, the analysis results in the understanding that the Mechanics and Production Engineering should not be assessed jointly like currently applied by CAPES and rather should be assessed in its own field separately. Finally, the result of the DEA analysis showed some serious inconsistencies with the CAPES method. Graduate programs considered excellent has got low performance score and vice versa. This Thesis provides a strong argument in order to use DEA at least as a complimentary methodology for graduate program performance evaluation in Brazil

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The general aim of this research was to analyze the factors that determine the environmental management strategies in the industry Millennium Inorganic Chemicals: Crystal Global, but also analyze which environmental management strategies are used by industry. For the achievement of the proposed objective, we conducted a case study organization based in twenty-eight environmental management strategies raised in the literature. Following this survey, it was possible to ascertain which of these strategies are used in the industry studied, as well as which factors are decisive for the implementation of these. The research is characterized as qualitative and applied, as the goals is exploratory and descriptive, with regard to the data, these were obtained through interviews with the directors of the organization and also documents made available by the industry. As a main result, it was realized that the industry practices twenty-eight twenty of environmental management strategies proposed in this study, the scale Waste Management that encompasses more strategies. Regarding the determinants realized that the endogenous factors that are most pressing for the organization creating environmental strategies, and these determinants, since the exogenous, with the exception of environmental legislation, not put pressure on the organization

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A Indústria Farmacêutica é uma das mais competitivas indústrias do mundo contemporâneo, e um dos seus principais desafios está na comercialização de seus medicamentos, que na sua maioria depende da prescrição médica. O objetivo deste estudo é identificar as estratégias de avaliação de desempenho utilizadas pela Indústria Farmacêutica de origem multinacional que atua no nordeste Brasileiro e o papel dos seus gerentes, para avaliar os propagandistas vendedores de medicamentos. Para tanto, buscouse reunir elementos para uma abordagem satisfatória que contemple a complexidade da temática pesquisada: Avaliação de Desempenho, Estratégias da Indústria Farmacêutica, Propaganda Médica e Competências dos Propagandistas de Medicamentos. A temática justifica-se em razão da importância estratégica dos propagandistas de medicamentos para a indústria farmacêutica, que é uma das indústrias que mais investe em pesquisa na atualidade, e contribui para melhorar a qualidade de vida e a saúde humana. A metodologia é caracterizada como um survey, de natureza quali-quantitativa. O objeto de estudo é composto pelas empresas farmacêuticas multinacionais de origem Americanas, Europeias e Asiáticas, associadas à INTERFARMA que atuam no Nordeste do Brasil. A coleta de dados foi realizada através de um questionário fechado (instrumento de pesquisa), composto por 5 perguntas fechadas que abordam a temática central dessa dissertação, 27 afirmativas para medir a concordância(escala likert) e 1 tabela contendo 46 competências, aplicado junto a gerentes da indústria farmacêutica. A análise dos dados foi feita por meio das técnicas de estatística descritiva e uma análise quantitativa para estabelecer o Ranking Médio (RM) para a parte do questionário que utilizou escala tipo Likert de 5 pontos para mensurar o grau de concordância dos respondestes. Através dos resultados desta pesquisa foi possível identificar as estratégias de avaliação de desempenho, utilizadas pelas empresas farmacêuticas, que atuam no Nordeste do Brasil, na gestão dos propagandistas vendedores de medicamentos, e identificar as competências essenciais dos propagandistas de medicamentos, na percepção dos gestores. Os resultados demonstraram que a Indústria Farmacêutica desenvolve e utiliza várias estratégias para medir e avaliar o desempenho dos propagandistas de medicamentos no Brasil, assim como em outros países, e que na percepção dos gerentes da Indústria Farmacêutica existem competências consideradas essenciais ao bom desempenho profissional dos propagandistas de medicamentos da indústria farmacêutica, contribuindo de para avanço do conhecimento deste tema

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The objective of the present work is develop a model to simulate electrical energy networks in transient and stead states, using the software ATP (Alternative Transient Program), able to be a way to join two distinct themes, present in classical methodology planning networks: short circuit analysis and load flow theory. Beyond that, using a tool for relay simulation, this paper intend to use the new developed model to investigate the influence of transient phenomenon in operation of protection relays, and calibrate the enterprise's protections relays. For testing the model, some relays, actually, installed at COSERN were used

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The Electrical Submersible Pump (ESP) has been one of the most appropriate solutions for lifting method in onshore and offshore applications. The typical features for this application are adverse temperature, viscosity fluids and gas environments. The difficulties in equipments maintenance and setup contributing to increasing costs of oil production in deep water, therefore, the optimization through automation can be a excellent approach for decrease costs and failures in subsurface equipment. This work describe a computer simulation related with the artificial lifting method ESP. This tool support the dynamic behavior of ESP approach, considering the source and electric energy transmission model for the motor, the electric motor model (including the thermal calculation), flow tubbing simulation, centrifugal pump behavior simulation with liquid nature effects and reservoir requirements. In addition, there are tri-dimensional animation for each ESP subsytem (transformer, motor, pump, seal, gas separator, command unit). This computer simulation propose a improvement for monitoring oil wells for maximization of well production. Currenty, the proprietaries simulators are based on specific equipments manufactures. Therefore, it is not possible simulation equipments of another manufactures. In the propose approach there are support for diverse kinds of manufactures equipments

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

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The production of the red pottery brick, made traditionally with clay, is a technique that is already stabled. However, in spite of the little complexity that involves the conventional process of these bricks production, it are exposed to many problems that begin in the fase of exploration of the mines, the problems get worse because of the lack of the clay's characterization, and they continue through the steps of the dough preparation, conformation of the products, the drying and the burning process. The wastefulness is shown and so is the low quality of the material produced. Among other factors, the high use of energy in the burning makes the cost of this material inaccessible to the low income consumer. Besides this, the destruction of the environment around the mines and the use of native vegetation to produce wood - the most used fuel in the pottery industry - make serious environmental damage. The production technique of a new type of simple brick (adobe), that has low cost and no environmental damage, can be the viable altemative to lower the cost of this part of the civil construction, and, consequently, in the building of cheaper houses. In this paper, the results of the mechanical resistance of the adobe brick are shown, using in its composition, clay, natural vegetable fibers, cement and plaster in a process that is completely handcrafted and manual. It is intented to make clear that are possible alternatives to be put in practice, with the simple process, using "raw earth" that has been used in the construction of houses in thousands of years, trying to solve these severe problems. Analysis and tests were performed to find results that could prove the possibility of the utilization of this kind of material. Other studies are in progress, and the new researches are necessary to enrich this work, but it stays the certainty that there is potential to produce bricks from adobe, as an alternative that has low cost to civil construction

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The marble and granite waste come from the process of mining of those ornamental rocks for use in the building industry. Brazil is one of the largest producers of blocks or finished products of ornamental rocks, extracting about 5.2 tons / year. The largest national producers are the states of Espírito Santo, Minas Gerais and Bahia which account for 80% of the Brazilian production. However, the waste total amount during processing of these blocks reaches 40% of the total. The use of the waste produced by this industry in white ceramics could be a form of disposition, because these materials, are thrownasa mud directly at decantation ponds, wastelands or in rivers, without any treatment. The present work has as main purpose to study the influence that reject of the ornamental rocks on the physical and mechanical properties of white ceramics. X-Ray characterizations of raw materials by were performed X-Ray fluorescence, X-Ray diffraction, granulometric, thermogravimetric and thermodiferencial analysis, five formulations were made (0, 10, 20, 30, 40% in granite weight) wich were burned at three temperatures: 1100°C, 1150°C and 1200ºC with 60 minutes of sorling time. After sintering, the samples were submitted to different analyser absorption of water, linear retraction, apparent porosity, apparent specific mass, flexival stronght, and scanning were obtained microscopy. Compatible technological properties within the limits demanded for the production of porcelainized stoneware

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In the manufacture of composite, textile materials are being used as reinforcement. Generally, the combination of the matrix with the textile material in the form of fibres or yarns is used depending on their distribution in the web. In the present work, in place of fibres or yarns, a knitted structure in the form of the final product which is defined as preform. The preform is weft knit manufactured with polyester filaments. In the manufacture of composite, polyester resin was used as matrix. The physical and mechanical properties as well as the formability of the weft knit were analysed. The physical and mechanical properties as well as the formability of the knitted structure were analysed. The results obtained on the analysis show that the courses and wales of the weft knit structure and the tensile properties help the formability of the structure and the impregnation of the resin. It could be clearly observed that composite structure in the direction of the courses support more tension than in the direction of the wales. In relation to the three points flexural tests it was possible to note that there was more flexion in the direction of wales, what was expected. It was also possible to note that there are other advantages such as reduction in the loss of materials used, homogeneity in the distribution of the knitted structure in the mould, reduction in the preparation time and also in the reduction in the cost of manufacture

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Brazil is the world s leading coffee producer. In 2008, 45.99 million of 60 kg bags of benefited coffee were produced. In the process of improvement 50% is grain and 50% is husk, thus, 1.38 million tons of coffee husk are produced annually. The husk is used as combustible in the drying and improvement ovens in the coffee farms, generating ash as residue. These ashes contain a high concentration of alkaline metals and earth metals, mainly K2O and CaO. This work studies the use of this residue in the ceramic tiles industry, as fluxing agents in substitution to the feldspar. Ten mixtures with equal ratios of clay and kaolin, proceeding from Bahia and the residue (varying from 30 to 5%) were defined and produced in uniaxial tool die of 60x20mm with approximately 5 mm of thickness and 45MPa compacting pressure. The samples were fired in four different temperatures: 1100 °C, 1150 °C, 1185 °C and 1200 °C during 60 minutes and characterized by means of X-ray fluorescence, X-ray diffraction, gravimetric thermal analysis and differential thermal analysis. The results of water absorption, apparent porosity, linear shrinkage, XRD, dilatometry, flexural strength and SEM were also analysed. The test specimen with addition of 10% of ash fired in 1200 °C resulted in 0.18% water absorption and 40.77 MPa flexural strength, being classified as porcelain stoneware tiles according to ABNT, UNI and ISO norms

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In recent decades, ceramic products have become indispensable to the technological development of humanity, occupying important positions in scientific production and consequently in industrial production. One area of the economy that continues to absorb large amounts of the products of this sector is Construction. Among the branches of the ceramic industry, there are the red ceramic industry which is traditionally the basis of that economic sector. Among the reasons for which the red ceramic industry became popular in the country, and specifically in Rio Grande do Norte, is the abundance of this raw material, easily found throughout the national territory. However, it appears that the red ceramic industry has deficiencies in technology and skilled labor, resulting in the production of ceramic goods with low added value. Among the factors that determine the quality of the ceramic products red has the proper formulation of the ceramic mass, the conformation and the firing temperature. Thus, the overall goal of this work is to study the mineralogical and technological properties, two clays from the region of the Wasteland Potiguar industrial ceramist. Therefore, the raw materials were characterized by analysis of Xray diffraction (XRD) analysis, X-ray fluorescence (XRF), particle size analysis (FA), scanning electron microscopy (SEM), optical microscopy (OM ), plasticity index (PI), thermal gravimetric analysis (TGA) and differential thermal analysis (DTA). The technological properties of the material were analyzed by water absorption tests (AA%) porosity (% PA), the linear shrinkage (RT%), apparent density (MEA), loss on ignition (PF%) and flexural strength three points (TRF)

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Emerald mining is an important area of the economy in Brazil, country which is in second place among the exporting nations of this gem. Due to the process of extraction, a great amount of reject is generated. Since there is no appropriate destination, the reject is abandoned around the mining industries, contributing to environment degradation. Nowadays, some of the most relevant things to an industry in general are: energy conservation, cost reduction, quality and productivity enhancement. The production of isolating, transformed refractory materials achieves the sustainability dimension when protection of the environment is incorporated to such process. This work investigates the use of emerald mining rejects in the ceramic body of refractory materials, aiming at obtaining a product whose characteristics are compatible with commercial products and, at the same time, allow the use of such rejects to solve the environmental issue caused by its disposal in nature. X-ray fluorescence analysis show that the emerald reject obtained after the flotation to extract molybdenum and mica has 70% of silica and alumina (SiO2+Al2O3) and 21% of a basic oxides and alkaline metals and earthy alkaline mixture (Na2O, K2O, CaO e MgO). Because of the significant amount of silica and alumina present in the reject, four refractory ceramic bodies were prepared. Samples with a rectangular shape and dimensions 100x50x10 mm were pressed in a steel mold at 27,5 MPa and sintered at 1200ºC for 40 min. under environment atmosphere in a resistive oven. The sintered samples were characterized in relation to the chemical composition (FRX), mineralogical composition (DRX), microstructure (MEV) and physical and mechanical properties. The results indicate that the mixture with 45% of reject, 45% of alumina and 10% of kaolin presents a refractory quality of 1420ºC, dimensional linear variation below 2.00%, apparent specific mass of 1,56 g/cm3 and porosity of 46,68%, which demonstrates the potential use of the reject as raw material for the industry of isolating transformed refractory materials

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