101 research outputs found

    Método para avaliação do desempenho do processo de desenvolvimento de produtos

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    Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia de Produçã

    Reasons for technology-based companies contemplated by the first company program to seek ISO 9001:2008 certification

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    The search for implementation of Quality Management Systems aims to continuously improve their results. Thus, for the services and/or products offered to convey trust and credibility, they must be designed within appropriate norms and standards. In this sense, this study seeks to assess the reasons that induce incubated technology-based companies to seek adequacy of their quality management system to the NBR ISO 9001:2008 standard. Through an exploratory survey in twenty-six incubated technology-based companies, a twelve-question questionnaire proposed by Bhuiyan and Alam (2005) was applied. After analyzing the data, it is concluded that the reasons for adequacy of QMS to the NBR ISO 9001:2008 standard are: competitive advantage over competitors; consultant´s approach for implementation; improvement in product quality; and government funding for ISO 9001 certification.  It is found that the consultant´s approach stands out as a strong reason for seeking the adequacy of QMS to the NBR ISO 9001 standard

    Reasons and benefits associated with ISO 9001 - Certification for sugar and ethanol companies

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    With increasing business competitiveness, companies have sought to adapt their processes and / or products to worldwide established quality standards in order to achieve a greater share of consumers having as favorable aspect the quality assurance of the products and/or services provided. It was observed that companies of different sizes have different challenges regarding the certification however, the degree of difficulty is the same for all of them. The objective of this paper is to verify the reasons for the implementation of ISO 9001, the obstacles encountered during the implementation, the benefits arising from the use of the quality management system and the degree of difficulty to implement this standard. This work was developed based on a survey involving companies certified with ISO 9001:2008 from the productive sector of sugar, ethanol and derivatives of sugarcane, located in all Brazilian states. It was observed that companies of different sizes have different challenges regarding the certification however the degree of difficulty is the same for all of them. Thus, we believe that expected results represent a very important contribution to examining the reasons, benefits and difficulties of the ISO 9001 to both, the companies and certification bodies, and to researchers.CAPES Foundation, (Process PE024/2008), the FAPEMIG Foundation (Processes: T EC-PPM-00520/13 and TEC-PPM-000 58-13) and the CNPq (Processes: 2 49160/2013-7, 310660/ 2012-2, 401082/2 014-8 and 478509/2012-

    Reasons, benefits and difficulties associated with ISO 9001 certification for sugar and ethanol companies

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    Purpose: With increasing business competitiveness, companies have sought to adapt their processes and / or products to worldwide established quality standards in order to achieve a greater share of consumers having as favorable aspect the quality assurance of the products and/or services provided. It was observed that companies of different sizes have different challenges regarding the certification however, the degree of difficulty is the same for all of them. The objective of this paper is to verify the reasons for the implementation of ISO 9001, the obstacles encountered during the implementation, the benefits arising from the use of the quality management system and the degree of difficulty to implement this standard. Design/methodology/approach: This work was developed based on a survey involving companies certified with ISO 9001:2008 from the productive sector of sugar, ethanol and derivatives of sugarcane, located in all Brazilian states. Findings: It was observed that companies of different sizes have different challenges regarding the certification however the degree of difficulty is the same for all of them. Originality/value: Thus, we believe that expected results represent a very important contribution to examining the reasons, benefits and difficulties of the ISO 9001 to both, the companies and certification bodies, and to researchers

    Risk management prioritization in medical device SMEs based on AHP analysis

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    Purpose - Risk management is crucial for the longevity of companies and it is also required by many standards and regulations, such as ISO 9001 and ISO 13485. Particularly for the medical device industry the standards are stricter, due to the level of risk that products can represent. However, each standard is particular on its requirements and establishing the risk management process can be challenging, namely for small and medium-sized enterprises (SMEs). This research aims to identify and prioritize the key features for the risk management of medical device SMEs. Design/methodology/approach - The Analytic Hierarchy Process (AHP) was applied as follows: from the literature review and the above-mentioned standards the authors defined the problem, objectives, alternatives and identified 5 evaluation criteria and 8 evaluation subcriteria, organized in the hierarchical structuring of four matrices, which were the basis for data collection and analysis. Five experts from Brazilian and Portuguese companies operating in the sector were interviewed and asked to evaluate each of the matrices, establishing the relative importance among the criteria, for the calculation of local priorities. Findings - The results led to the involvement of employees as the most important criterion for risk management, followed by employees training and qualification. Organizational culture was listed as the least important criterion, with four of the five evaluators considering training and qualification as a way to work towards a cultural change and encourage risk-based thinking. Originality/value - Recent researches highlight the need for methodological and scientific support on risk management for the companies. This paper provides discussion regarding whether the literature reflects the reality of organizations and how the process is considered by them.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior(undefined

    Desempenho do pomeleiro "marsh seedles" enxertado em trifoliata inoculado com viróides no Brasil

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    Alguns viróides reduzem o crescimento dos citros e podem ser usados para o controle do tamanho das plantas objetivando a instalação de pomares adensados que podem ter maior produtividade que os pomares com espaçamentos convencionais. Para estudar o efeito da inoculação de viróides no desenvolvimento vegetativo, produção e qualidade dos frutos de pomeleiro 'Marsh Seedless' (Citrus paradisi Macf.) enxertado em trifoliata [Poncirus trifoliata (L.) Raf.], foi instalado um experimento em Janeiro de 1991, em Bebedouro, Estado de São Paulo, Brasil. O delineamento experimental foi em blocos casualizados com quatro tratamentos e duas plantas por parcela: viróides dos citros (CEVd + CVd-II + CVd-III) e (CVd-II + CVd-III) e testemunhas: enxertia de duas borbulhas sadias (testemunha) e sem enxertia (testemunha absoluta). A inoculação foi feita no campo, seis meses após o plantio, por enxertia de borbulhas. Ambos isolados reduziram o crescimento das árvores (diâmetro do tronco, altura da planta diâmetro e volume da copa). As árvores não inoculadas produziram mais que as inoculadas nas onze colheitas realizadas, mas as produtividades foram similares. A qualidade dos frutos foi afetada pela inoculação de viróides, mas não de maneira restritiva. O uso de isolados ananicantes severos não deve ser recomendado para plantios de alta densidade de pomelo enxertado em trifoliata.Some viroids reduce citrus tree growth and may be used for tree size control aiming the establishment of orchards with close tree spacing that may provide higher productivity than conventional ones. To study the effects of citrus viroids inoculation on vegetative growth, yield and fruit quality of 'Marsh Seedless' grapefruit (Citrus paradisi Macf.) grafted on trifoliate orange [Poncirus trifoliata (L.) Raf.], an experiment was set up in January 1991, in Bebedouro, São Paulo State, Brazil. The experimental design was randomized blocks with four treatments with two plants per plot: viroid isolates Citrus Exocortis Viroid (CEVd) + Hop stunt viroid (HSVd - CVd-II, a non cachexia variant) + Citrus III viroid (CVd-III) and Hop stunt viroid (HSVd - CVd-II, a non cachexia variant) + Citrus III viroid (CVd-III) and controls: two healthy buds (control), and no grafting (absolute control). Inoculation was done in the field, six months after planting by bud grafting. Both isolates reduced tree growth (trunk diameter, plant height, canopy diameter and volume). Trees not inoculated yielded better (average of eleven harvests) than inoculated ones but the productivity was the same after 150 months. Fruit quality was affected by viroids inoculation but not in a restrictive way. The use of such severe dwarfing isolates for high density plantings of grapefruit on trifoliate orange rootstock is not recommended

    Índices não paramétricos para seleção de citros híbridos como porta-enxertos, enxertados com laranjeira 'Valência'

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    The objective of this work was to evaluate five nonparametric selection indices for the selection of hybrid citrus rootstocks grafted with 'Valência' sweet orange, using horticultural traits relevant for the juice processing industry. Forty-six rootstocks were evaluated in a randomized complete block design, with three replicates and five trees in the plot, in the period from 2009–2015, in a rainfed cultivation. The means of the variables plant height, accumulated fruit yield, fruit yield efficiency, total soluble solids concentration, juice yield, and drought-tolerance were used to calculate the following indices: multiplicative index (IEi), sum of classification (IMMi), genotype-ideotype distance (DiI), and ranking indices (IRKi, based on simple means; and IRKii, based on linear normalization). The indices were efficient to classify the hybrids in relation to general performance. Spearman’s correlation showed a high similarity between most nonparametric indices, notably between IRKi and IRKii. The ranking indices, mainly IRKii, provide a more coherent classification of the hybrids, which allows of the selection of more productive and drought-tolerant rootstocks to produce high-quality fruit for processing.O objetivo deste trabalho foi avaliar cinco índices de seleção não paramétricos para a seleção de citros híbridos como porta-enxertos, enxertados com laranjeira 'Valência', com base em atributos horticulturais relevantes para a indústria de processamento de suco. Avaliaram-se 46 porta-enxertos em delineamento de blocos ao acaso, com três repetições e cinco plantas na parcela, no período de 2009–2015, em cultivo de sequeiro. As médias das variáveis altura de planta, produção acumulada de frutos, eficiência produtiva de frutos, concentração de sólidos solúveis totais, rendimento de suco e tolerância à seca foram utilizadas para calcular os seguintes índices: multiplicativo (IEi), soma de classificação (IMMi), distância genótipo-ideótipo (DiI) e ranqueamento (IRKi, baseado em médias simples; e IRKii, baseado em normalização linear). Os índices foram eficientes em classificar os híbridos em relação ao desempenho geral. A correlação de Spearman mostrou alta similaridade entre a maioria dos índices não paramétricos, notadamente entre IRKi e IRKii. Os índices de ranqueamento, principalmente o IRKii, fornecem uma classificação mais coerente dos híbridos, o que permite a seleção de porta-enxertos mais produtivos e tolerantes à seca, para a produção de frutas de alta qualidade para processamento

    Processing parameters in the ball milling of niobium hydride: An optimization approach

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    717-723Due to its particular properties, niobium has been widely used in the industry. In order to produce niobium-base parts, its powder can be obtained through a powder metallurgy’s method called ball milling. In this article, the ball milling parameters, in the production of niobium’s powder,have been optimized using the Taguchi’s method in order to obtain a high yield in the process, considering a particle size smaller than 75 mm. Taguchi’s method, among several experimental designs, has been chosen due to its simplicity, efficiency and systematic approach to determine the optimal parameters in a manufacturing process. The experimental results have been indicated that the milling speed and time are the main variables in the process. In addition, the morphology of niobium hydride particles with the lowest and highest yield has been analyzed through the electron microscopy’s scanner

    Priorização de oportunidades de pesquisa em engenharia de produção: estudo de caso alinhado ao processo de cooperação universidade-empresa / Prioritization of research opportunities in production engineering: case study aligned with the university-enterprise cooperation process

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    A importância da cooperação entre universidades e empresas, como propulsora do crescimento econômico e de desenvolvimento dos sistemas de inovação, se destaca dentro do modelo da hélice tríplice. Nessa direção, o objetivo deste trabalho é priorizar oportunidades de pesquisa dentro das áreas da engenharia de produção no setor industrial da cidade de itajubá (MG). A pesquisa se classifica como quanti-qualitativa, utilizando-se de um estudo de caso e da aplicação do método de auxílio à tomada de decisão analytic hierarchy process (AHP) como ferramenta de priorização. Importantes membros da hélice tríplice do município realizaram as priorizações e, como resultado, a estrutura final obtida ressaltou a relevância das agências transversais de pesquisa e desenvolvimento para fomentar pesquisas em engenharia de produção no setor industrial de itajubá. Por fim, foram identificadas três implicações práticas da pesquisa, no âmbito das instituições de ensino superior de itajubá; das empresas do setor industrial de itajubá; e das agências governamentais e de fomento à pesquisa de itajubá
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