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Uma proposta para o aprendizado de gestão da produção utilizando-se um modelo de referência / not availableLenza, Rogério de Paula 12 September 2001 (has links)
O cenário atual, para as empresas de manufatura, é marcado por mudanças no comportamento dos clientes, competidores e fornecedores de uma empresa. Tais mudanças exigem um esforço contínuo para a manutenção da competitividade, fazendo assim com que as empresas busquem implementar ações de melhorias e novas tecnologias. Porém, a simples adoção e implementação de uma ação de melhoria não garante a competitividade da empresa. É preciso, também, preocupar-se com elemento primordial na implantação e absorção de tais ações - o homem, capacitando-se com conhecimentos que o auxiliem no processo de decisão. Tal processo de capacitação acontece, em grande parte, na formação do profissional pelas Universidades. Todavia, nota-se que a educação em engenharia, ainda atua sob as formas tradicionais de ensino, não acompanhando as mudanças que ocorrem e preparando um profissional para uma realidade passada, diferente da atual. Tal situação apresenta a possibilidade de se investir em propostas de ensino e aprendizagem. Esse trabalho apresenta uma proposta para o ensino e aprendizagem dos conceitos de Gestão da Produção por meio do uso de Modelos de Referência. / The actual scenario, for the manufacturing enterprises is marked for great changes in customers, competitors and suppliers behavior of an enterprise. Those changes require a continuous effort to keep the competitiveness, making, by this way, that the enterprise look toward to implement new technologies and improvement actions. However, just the implementation of an improvement action cannot guarantee the enterprise competitiveness. It is also necessary to give attention for the main element involved in the implementation absorption of such action - the human, giving him the knowledge to assist in a decision process. This qualification process, happen, mostly in the professional education done by the Universities. However, it can be realized, that the engineering education still working with the traditional education forrns, and do not follow the happening changes, preparing, with this, a professional for an past reality, different from the actual one. This situation shows the possibility to invest in new teaching and learning proposals. This work presents a proposal for the teaching/learning process for the Production Management concepts using, for this, a Reference Model.
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Uma contribuição ao processo de gestão da produção pelo uso da coleta automática de dados de chão de fábrica. / Contribution to the production management process using automatic shop floor data collection.Favaretto, Fabio 20 April 2001 (has links)
O processo de gestão da produção é responsável pelo planejamento de todas as atividades de produção em empresas de manufatura. Modelos conceituais são referências para implantação e organização deste processo, e alguns não abordam o uso da coleta automática de dados de chão de fábrica. É proposto um modelo conceitual que considera a coleta automática, tratamento e disponibilização destes dados, permitindo que sejam tomadas decisões com base em dados mais precisos, detalhados e fáceis de serem obtidos. / The production management process is in charge to plan all production activities in manufacturing enterprises. Conceptual models are references for implantation and organization of this process. Some of these models do not include automatic shop floor data collection. It is proposed a conceptual model that takes into account the automatica data collection, using, treating and making it available. This will permit a decision making based on more detailed, accurated and easy to get information.
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Improved performance and increased productivity through decision support system : a survey and a case study of a decision support system application.January 1986 (has links)
by Ang Siu-lun. / Bibliography: leaves 137-140 / Thesis (M.B.A.)--Chinese University of Hong Kong, 1986
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How to improve the production lead time of knitted fabrics for company X.January 1991 (has links)
by Yang Ming-Yen Teresa. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1991. / Includes bibliographical references (leave 61). / ABSTRACT --- p.ii / ACKNOWLEDGEMENTS --- p.iii / TABLE OF CONTENTS --- p.iv / LIST OF ILLUSTRATIONS --- p.vi / LIST OF TABLES --- p.vii / Chapter I. --- Introduction --- p.1 / Company Background --- p.6 / Chapter II. --- Methodology --- p.9 / Chapter III. --- Analysis of the Existing System --- p.10 / Piecegoods Purchase Order System --- p.10 / Physical Flow --- p.17 / Yarn Dyeing --- p.24 / Knitting --- p.26 / Piece Dyeing --- p.26 / Finishing --- p.30 / Final Inspection --- p.32 / Transit Time --- p.35 / Chapter IV. --- Identification of Major Problem Areas --- p.38 / Documentation Flow --- p.38 / Physical Flow --- p.40 / Feasibility of the Target Lead Time --- p.41 / Feasibility of the Target --- p.42 / Production Capacity / Identification of the Problem Areas --- p.44 / Chapter V. --- Recommendations To Improve the Lead Time --- p.50 / Measurements --- p.50 / Skills --- p.51 / Communication --- p.54 / Decision Process --- p.56 / Management Support --- p.57 / Appendix --- p.60 / Bibliography --- p.61
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Production functions of the manufacturing industry in Hong Kong.January 1978 (has links)
Choi Hak. / Thesis (M.Phil.)--Chinese University of Hong Kong. / Bibliography: leaves 185-193.
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Inventory models with weather derivatives and weather-conditional rebates for seasonal products. / CUHK electronic theses & dissertations collection / ProQuest dissertations and thesesJanuary 2007 (has links)
Key words. Newsvendor Model, Inventory Model, Seasonal Product, Weather Risk, Weather Option, Weather Derivative, Weather-Conditional Rebate, CVaR, Mean-CVaR. / The first model considers the problem of hedging inventory risk for a newsvendor who sells a seasonal product. The newsvendor not only decides the order quantity, but also adopts a weather hedging strategy. A typical hedging strategy is to use an option that is constructed on a weather index before the season begins, which will compensate the buyer of the option if the actual seasonal weather index is above (or below) a given strike level. We explore the joint decision problem in mean-variance, expected utility, conditional value-at-risk (CVaR), and mean-CVaR frameworks. We analyze the impact of weather hedging on optimal order quantity. It is proven that the newsvendor may order more than in the absence of weather options. Numerical analysis on the sensitivity of the optimal order quantity, the risk premium of the option, the portfolio selection and the comparison between the weather option hedging and a particular operational hedging are presented as well. / The second model investigates the advantages of early sales of a seasonal product. To induce early sales, the newsvendor adopts a weather-conditional rebate program, which will pay rebates to the customers who buy the product in the preselling period if a specified weather condition for normal selling season is realized. For an example, a certain amount of refund will be paid to early buyer if the seasonal average temperature falls below the past-three-year seasonal average. Two conditional rebate programs with early booking and early purchasing are investigated and compared. Both of them can price differentiate within a customer among his/her post valuation on the seasonal product, and thus increase the sales. For the early purchasing program, it can further save inventory holding cost and ordering cost. The expected profit can be improved by the programs. Moreover, combined with weather derivatives, the conditional rebate program can manage the financial risk with the expected profit being still improved. / To investigate the means that firms may adopt in managing the adverse impacts of weather on their businesses, this dissertation proposes and analyzes two inventory models for seasonal products when the demand is sensitive to the weather in the season. Both models are formulated under the newsvendor context. / Gao, Fei. / "October 2007." / Adviser: Youhua Frank Chen. / Source: Dissertation Abstracts International, Volume: 69-08, Section: B, page: 5002. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (p. 108-119). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest dissertations and theses, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.
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Gerenciamento da produção: um estudo sobre redução de falhas utilizando o monitoramento do processo produtivo.Medeiros, Hyggor da Silva 29 September 2009 (has links)
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Previous issue date: 2009-09-29 / The technology progress has been doing with companies look for to offer products with quality, because it is well-known that products without quality interfere directly in the final results inside the companies, for that, it is essential that the managers make available time and resources for the implantation of continuous improvement that it has as main objective to reduce the current losses of operational flaws or of the non quality of the materials, and this process search to reach all of the industrial sections. The present study has as objective shows the influence of the monitoring inside in the percentile of flaws a productive process of cellular apparels in relation to the production results. The study has as focus the manufacture process and the areas involved in the support the production, being the monitoring of these areas the process that consists of the reduction of the index of flaws. The study used as methodology the observation in loco taking as base documents and production reports, for being a case study being limited to an only one it manufactures of cellular the same used as reference the products and the others manufacture of the group around of the globe. This study it exposes areas that have losses, take the productivity decline in the it manufactures Manaus besides showing the relationship of the measures and the comparative among the another manufacture of same group telling her influences from these losses to global levels. However, the results obtained with the research showed that it is possible to map the areas of larger contribution for the origin of flaws in the productive process as well as it showed that the possibility exists of working with the production reports with the purpose of improvement of the process, seeking to the reduction of the indexes of flaws, perfecting the monitoring techniques and answer to the variations of the process. In the general the work shows the direct influence of monitoring the sections that you/they compose the manufacture process, showing the significant changes in elapsing of the time if maintained a work of constant improvement in each section, besides, the study showed that other external factors the production can interfere in the evaluation of the comparative reports among you manufacture tends significant part in the results. / O avanço da tecnologia tem feito com que as empresas busquem oferecer produtos com qualidade, pois é notório que produtos sem qualidade interferem diretamente nos resultados finais do processo das empresas, por isso, é essencial que os gestores disponibilizem tempo e recursos para a implantação de melhoria contínua que tem como objetivo principal diminuir as perdas decorrentes de falhas operacionais ou da não qualidade dos materiais, sendo que este processo busca atingir todos os setores fabris. O presente estudo tem como objetivo mostrar a influência do monitoramento no percentual de falhas dentro de um processo produtivo de aparelhos celulares em relação aos resultados de produção. O estudo tem como foco o processo de manufatura e as áreas envolvidas no suporte a produção, sendo o monitoramento destas áreas o processo que consiste na redução do índice de falhas. O estudo utilizou como metodologia a observação in loco tomando como base documentos e relatórios de produção, por ser um estudo de caso limitando-se a uma única fabrica de celular o mesmo utilizou como referência os produtos e a demais fabricas do grupo ao redor do globo.Este estudo expõe as áreas causadoras de perdas que levam o declínio de produtividade na fabrica Manaus além de mostrar a relação das medidas e o comparativo entre as outras fabricas do mesmo grupo relatando a influencia destas perdas a níveis globais. No entanto, os resultados obtidos com a pesquisa mostraram que é possível mapear as áreas de maior contribuição para a origem de falhas no processo produtivo assim como mostrou que existe a possibilidade de trabalhar com os relatórios de produção com a finalidade de melhoria do processo, visando à redução dos índices de falhas, aprimorando as técnicas de monitoramento e resposta às variações do processo. No geral o trabalho mostra a influência direta do monitoramento dos setores que compõem o processo de manufatura, mostrando as significativas mudanças no decorrer do tempo se mantido um trabalho de melhoria constante em cada setor, além disso, o estudo mostrou que outros fatores externos a produção podem interferir na avaliação dos relatórios comparativos entre fabricas tendo parte significativa nos resultados.
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Diagnóstico do mestrado profissional em engenharia de produção da UFAM: contribuição para as organizações, academia e egressos.Mendes, Vera Nilce Campos 31 May 2010 (has links)
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Previous issue date: 2010-05-31 / Não Informada / This paper presents a case study conducted in 2009 in graduate school training in production engineering from UFAM, where it was possible to examine the scientific knowledge generated through the dissertations in the program. We checked the subjects of the graduates from the lines of research of course: Strategies and Organizations, Quality and Productivity, Manage Production, Economic Management and Environmental Management, in order to verify contributions to the management tools discussed in the dissertations of course brought for organizations, academia and the professional life of ourselves. The theme was carried through the qualitative research, which is analyzed initially bibliography of relevant literature and field research followed by the egress of the course in question to identify whether the research methodology developed during his stay in the program were implemented by the organization if the same has publications in journals and knowledge to CAPES. The study revealed that the research methodology used by the students brought improvements to their working life, people and organizations in which they work or have worked, because 71% of methodological research undertaken by students have been deployed in the workplace, contributing greatly to regional development. However, for the socialization of knowledge is necessary to improve the quality of bibliographic publications in journals, thus avoiding low scores in the CAPES evaluation and accreditation of the course next to it. / Este trabalho apresenta um estudo de caso realizado em 2009 no curso de mestrado profissional em engenharia de produção da UFAM, onde foi possível realizar analise do conhecimento científico gerado por meio das dissertações apresentadas no Programa. Foram verificados os temas abordados pelos egressos a partir das linhas de pesquisas do curso: Estratégias e Organizações, Qualidade e Produtividade, Gerencia da Produção, Gestão Econômica e Gestão Ambiental, com intuito de verificar que contribuições as ferramentas de gestão abordada nas dissertações do curso trouxeram para as organizações, academia e para a vida profissional dos mesmos. A abordagem do tema foi realizada através da pesquisa qualitativa, onde é analisado inicialmente levantamento bibliográfico da literatura pertinente e em seguida pesquisa de campo junto ao egresso do mestrado em questão para identificar se a pesquisa metodológica desenvolvida durante sua permanência no programa foram implementada junto à organização, se o mesmo possui publicações em periódicos e conhecimento sobre avaliação da CAPES. O estudo revelou que as pesquisas metodológicas utilizadas pelos egressos trouxeram melhorias para sua vida profissional, pessoas e para as organizações em que os mesmos trabalham ou trabalharam, pois, 71% da pesquisa metodológica realizada pelos discentes foram implantadas nos locais de trabalho, contribuindo grandemente para o desenvolvimento regional. No entanto, para a socialização desse conhecimento é necessário melhorar a qualidade de publicações em periódicos bibliográficos, evitando assim pontuações baixa na avaliação CAPES e o descredenciamento do curso junto à mesma.
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Mejora en el proceso de planeamiento y control de la producción de la empresa de Fundición Metalurgia del Fierro y del Cobre S.R.L.Pardo Villavicencio, Lucia Asunción 12 September 2019 (has links)
El presente proyecto de investigación se basa en la búsqueda de la mejora continua en el proceso de planeamiento y control de la producción en una empresa de la industria metalmecánica del Perú la cual ha ido creciendo rápidamente. Sin embargo, debido a los constantes cambios del mercado, se identifica que la demanda actual que maneja este sector es flexible. Para el cumplimiento de dicha demanda, las empresas han tenido que realizar una reestructuración del método de fabricación de sus productos. Sin embargo, algunas empresas aún siguen trabajando con el mismo método de fabricación para el cumplimiento de demanda constante. Un ejemplo, es la empresa Metalurgia del Fierro y del Cobre S.R. L. El problema actual que la empresa presenta es el incremento de pedidos atrasados, causando así una baja facturación durante el mes. Para la solución, se analizó que la causa principal es la mala planificación de la producción, debido a que la empresa no ha tenido un análisis previo de la demanda durante los años anteriores, esto tiene como causas que la parte operativa de la empresa tenga tiempos no estandarizados, constantes paradas de máquinas y la falta de stock de insumos. Para la solución de estas causas se propone las siguientes metodologías: Desarrollo de pronósticos basados la herramienta de suavización exponencial doble y la creación de un sistema de planificación y control de la producción bajo pedido y proponiendo la incorporación de nuevos procedimientos basados en la herramienta MRP II. / This research project is based on the search for continuous improvement in the process of planning and control of production in a company of the metalworking industry in Peru, which has been growing rapidly. However, due to the constant market changes, the current demand that manages this sector is flexible. To meet this demand, companies have had to restructure the manufacturing method of their products. However, some companies are still working with the same manufacturing method to meet constant demand. For example, it is the company Metalurgia del Fierro y del Cobre S.R. L. The current problem that the company presents is the increase in backorders, thus causing low turnover during the month. For the solution, the main cause was analyzed is the poor production planning, because the company has not had a previous analysis of the demand during the previous years, this has as causes that the operational part of the company has times not Standardized, constant machine shutdowns and lack of stock of inputs. For the solution of these causes, the following methodologies are proposed: Development of the specified double exponential smoothing method and the creation of a planning and control production system and proposing the incorporation of new specific procedures in the MRP II tool. / Tesis
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Sequential games under positional uncertaintyGibson, Christopher Daniel January 2019 (has links)
This dissertation focuses on sequential games of imperfect information. I study settings in which not only do agents face imperfect information in the traditional sense of not possessing all payoff-relevant information, but they also face uncertainty about their position of movement in the sequence. I have utilized this framework to study financial investment decisions by individuals, production decisions by firms, and implications on information aggregation in observational learning.
In order to study production decisions by firms I utilize a Stackelberg oligopoly model with a stochastic consumer demand. In this setting firms do not know their position of movement, and as a result of the stochastic demand they cannot infer from the prevailing price if another firm has yet entered the market. I find that as a result of uncertainty firms produce a higher quantity than they otherwise would have, resulting in a more competitive outcome. In fact, as the number of firms in the market increases, with positional uncertainty the equilibrium quantity actually exceeds the perfectly competitive quantity.
I then investigate the impact of positional uncertainty when agents must choose levels of investment in a financial asset. Investors receive a signal about the value of the asset but are not necessarily aware of their position in the sequence of investors. As a result, they are unsure to what extent the signal they receive represents profit-relevant information, or if the signal is “stale” in the sense that the information has been incorporated into the price by other investors. This results in more cautious levels of investment, and an asset price that does not represent the true underlying value.
To study the behavioral aspects of financial investment, I introduce in this model a notion of confidence. While much work in the area of behavioral finance has studied the role of confidence over the accuracy of information, my interest is in confidence over the timing of information. I define an agent as overconfident if they believe they are more likely to have received the signal earlier than other agents, and are thus more likely to be early investors. The effect of overconfidence can overwhelm the cautious nature of positionally uncertain investors, even potentially leading to an overreaction to information. This effect can explain overvaluation of assets and volatility of prices in response to information.
In a model of observational learning, limited information about the history of actions slows the integration of information. However, I show that in the limit, even in the presence of limited histories complete learning occurs. In the environment of limited access to historical information I introduce uncertainty over position of action. This uncertainty even further dampens the process of learning from a welfare standpoint, but as the number of agents grows large complete learning still obtains in the limit for all levels of uncertainty.
The common finding in all these settings is that uncertainty about the order of action causes agents to be cautious about exploiting profitable opportunities. In the case of oligopoly this leads to more competitive outcomes, whereas in the cases of investment and social learning uncertainty leads to less effective information aggregation.
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