69 research outputs found
Proposta de diretrizes para o projeto para manufatura enxuta
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia MecânicaA implementação da Manufatura Enxuta tem tido uma importante participação na busca pelo aumento de eficiência e produtividade de indústrias que enfrentam uma competição de mercado acirrada, como a automotiva. A Manufatura Enxuta encontra seus principais alicerces nas boas práticas desenvolvidas pelas indústrias automotivas japonesas no final da segunda grande guerra, na busca por alta qualidade, baixos custos de transformação, menores lead times e maior flexibilidade. Devido à alta competitividade em diversos setores industriais, particularmente no automotivo, existe um grande esforço pela aplicação da Manufatura Enxuta em níveis cada vez mais profundos. É de fácil verificação que o processo de desenvolvimento de produtos tem forte impacto na eficácia e amplitude de sua aplicação. Por outro lado, verifica-se a falta de elementos para o desenvolvimento de produtos que contribuam com a implantação da abordagem enxuta, buscando eliminar desperdícios na etapa de manufatura a partir das fases iniciais do processo de desenvolvimento de produtos. A preocupação em desenvolver produtos que maximizem características específicas, através da utilização da Engenharia Simultânea, fez surgir o Projeto para Manufatura (DFM). Até o momento, nenhuma ferramenta conseguiu oferecer subsídios suficientes para equipes de desenvolvimento, em sua tarefa de desenvolver produtos que venham a contribuir com a implantação da Manufatura Enxuta em sua totalidade. Da mesma forma, a Engenharia Simultânea não tem sido utilizada de maneira apropriada na busca pelo envolvimento da equipe de desenvolvimento com a Manufatura Enxuta. O presente estudo busca desenvolver e sugerir, na forma de diretrizes para o Design for Lean Manufacturing (DFLM), uma sistematização das melhores práticas para o desenvolvimento de produtos com foco na implantação da Manufatura Enxuta. Estas diretrizes foram reunidas levando-se em consideração a identificação de requisitos pertinentes à implementação da Manufatura Enxuta, durante o processo de projeto. As diretrizes propostas foram aplicadas num estudo de caso junto a uma empresa do setor automobilístico, e os resultados mostraram a relativa facilidade de aplicação das mesmas e também ganhos significativos em termos da redução do lead time do processo produtivo. Lean Manufacturing approach implementation has had an important participation in productivity improvement in first-rate industries. This approach came from the gathering of the best practices used by the Japanese automotive industries as of the end of the Second World War targeting simultaneously high quality, low costs, lower lead time and enhanced flexibility. Due to high competitiveness in first rate industries, mainly automotive, there is a great effort in applying Lean Manufacturing approach in deeper levels. It is not difficult to verify, that product concept has had an important role on its efficacy, and while on the other hand, one can verify a lack of elements for a proper development of products with focus on Lean Manufacturing approach. Concern to design products that maximize specific characteristics through utilization of Simultaneous Engineering gave birth to DFX tools such as Manufacture (DFM). To this date, no DFX tool has offered enough subsidies to the design team in its task of generating products that will contribute with the implementation of Lean Manufacturing in its entirety, also has Simultaneous Engineering not been properly utilized in the job of involving the Product Design team with Lean Manufacturing approach. The present study seeks to bring forward, in the form of a set of guidelines called Design for Lean Manufacturing (DFLM), the systematization of the best supporting practices for the development of products with focus on the implementation of Lean Manufacturing through Simultaneous Engineering. These guidelines have been put together considering the identification of product requisites pertinent with the implementation of Lean Manufacturing. The proposed systematization focuses conceptual design and detailed design phases of Product Development Process. Proposed guidelines were applied in a case study placed in an automotive facility sector and results indicated they were relatively easy to use as well as significant gains regarding productive process lead time were achieved
Modelagem, demanda e precificação no mercado de seguros: combate à assimetria de informação
No full textEste estudo explora a influência das variações de prêmio e a introdução do cashback nos seguros prestamista, investigando como esses fatores podem afetar a decisão de contratação de seguros ligados a empréstimos bancários no Brasil. Analisa-se o processo decisório dos tomadores de empréstimos e como este pode ser compreendido à luz da teoria da aversão ao arrependimento. A diluição do risco pode ser incentivada por estratégias de precificação e inovações de produto. Assim, foi desenhado um experimento para avaliar hipóteses centrais que sugerem que a oferta de cashback pode resultar em uma melhor classificação de risco de crédito para a seguradora, atraindo clientes com perfis de risco mais favoráveis. As análises-base da pesquisa não conseguiram validar as hipóteses centrais do modelo desenvolvido para a amostra obtida. Os resultados indicam a necessidade de mais estudos que relacionem os aspectos comportamentais da teoria com evidencias empíricas e experimentais do processo de escolha de contratação de seguros.This study explores the influence of premium variations and the introduction of cashback in credit insurance, investigating how these factors can affect the decision to contract insurances linked to bank loans in Brazil. The decision-making process of loan borrowers is analyzed and how this process can be understood from the perspective of the theory of regret aversion. Risk dilution can be encouraged by pricing strategies and product innovations, therefore, an experiment was designed to evaluate central hypotheses suggesting that the offer of cashback can lead to better credit risk classification for the insurer, attracting clients with more favorable risk profiles. The baseline analyses of the research could not validate the central hypotheses of the model developed for the sample used. The findings indicate the need for further studies linking the behavioral aspects of the theory with empirical and experimental evidence of the insurance purchasing decision process
A High-Resolution Optical Measurement System for Rapid Acquisition of Radiation Flux Density Maps (Poster)
No full textTo identify the power and flux density of concentrated solar radiation the Institute of Solar Research at the
German Aerospace Center (DLR - Deutsches Zentrum für Luft- und Raumfahrt e. V.) has used the camera-based
measurement system FATMES (Flux and Temperature Measurement System) since 1995. The disadvantages of low
resolution, difficult handling and poor computing power required a revision of the existing measurement system. The
measurement system FMAS (Flux Mapping Acquisition system) is equipped with state-of-the-art-hardware, is
compatible with computers off-the-shelf and is programmed in LabView. The expenditure of time for an image
evaluation is reduced by the factor 60 compared to FATMES. The new measurement system is no longer associated with
the facilities Solar Furnace and High Flux Solar Simulator at the DLR in Cologne but is also applicable as a mobile
system. The data and the algorithms are transparent throughout the complete process. The measurement accuracy of
FMAS is determined to at most +/- 3 % until now. The error of measurement of FATMES is at least 2 % higher according
to the conducted comparison tests
Clinical Ambulatory Anesthesia
No full textAmbulatory care can be a challenging setting in which to provide anesthesia – not all patients are suitable for rapid discharge post-operatively and opinions differ as to which types of surgery should be performed as day cases. This comprehensive guide delivers up-to-date, evidence-based advice on how to provide optimal anesthesia care for ambulatory surgery. Written by a leading clinical anesthesiologist, it provides clear guidance about how to handle particular patients in particular situations. The evidence and scientific knowledge for each issue are presented with reference to major studies and review papers, followed by practical advice based on the author&apos;s continuous clinical and scientific experience over 30 years. Topics include planning, equipping and staffing ambulatory units, pharmacology, basic concepts of ambulatory care, pre- and post-operative issues and current controversies. Clinical Ambulatory Anesthesia is essential reading for the clinical, postgraduate anesthesiologist as well as nurse anesthetists involved with ambulatory care.</jats:p
Keel.
No full textPatent for an improved type of keel construction, "of which the distance between the keel and covering-boards is equalized throughout the length of the vessel and a vessel of exceptional strength and advantageous construction is afforded." (Lines 16-20) Includes instructions and illustrations
F. A. Hayek on the role of reason in human affairs
No full textThis-study examines the views of F. A. Hayek on the role of reason in human affairs. The author explicates certain elements of Hayekian theory that bear on this issue-his views on the nature of mind, rules, law, and cultural evolution-and discusses the characteristics of both the constructivist and critical kinds of rationalism Hayek identifies. She then examines the views of various critics who have challenged Hayek\u27s argument. She concludes that, contrary to certain critics, 1) the distinction he draws between constructivist and critical rationalism is meaningful and that the two kinds of rationalism appear to be related to certain political views; 2) whether Hayek, despite his criticism of the constructivistic conceit, should himself be considered a constructivist depends on whether one adopts a broad or narrow interpretation of constructivism; and 3) Hayek\u27s method of social criticism-what he terms immanent criticism -does provide the basis for a meaningful critical theory
Die Frühjahrsarbeiten der Aufklärungsstreitkräfte und weitere neue Dokumente zur Entwicklung des deutschen seestrategischen Denkens im Ersten Weltkrieg
No full textDer Beitrag befasst sich mit kürzlich entdeckten Quellen aus dem Bundesarchiv-Militärarchiv, welche ein neues Licht auf die Entwicklung des deutschen seestrategischen Denkens im Ersten Weltkrieg werfen. Es handelt sich um eine Sammlung von Denkschriften, die im Frühjahr 1915 in den Aufklärungsstreitkräften unter dem Kommando von Konteradmiral Franz Hipper entstanden. Darin wird das Scheitern der bisherigen Strategie einer Entscheidungsschlacht in der Nordsee analysiert und es werden Lösungsansätze für einen zukünftigen Seekrieg entwickelt. Nach Ansicht der beteiligten Offiziere, zu denen u. a. Kapitän z.S. Max Hahn, Kapitän z.S. Magnus von Levetzow und Konteradmiral Georg Hebbinghaus gehörten, konnte die Lösung nur in einer völligen Umgestaltung der Seestrategie liegen. Das Konzept sah einen systematischen Angriff auf die britischen Versorgungswege im Atlantik vor. Dieser sollte mit neu zu entwickelnden Großkampfschiffen von überragender Kampfkraft, ausgestattet mit Dieselantrieb oder Ölfeuerung, sowie mit unterstützenden leichten Streitkräften geführt werden. Darüber hinaus wird gezeigt, dass diese Ideen auch in der restlichen Flotte und im RMA auf positive Resonanzen stießen. Abschließend wird auf mögliche Kontinuitäten zum Z-Plan unter Admiral Erich Raeder hingewiesen
A Midsummer Night's Dream, May 8, 1968
No full textConcert program for A Midsummer Night's Dream, by Benjamin Britten, May 8,
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Author Correction: Comprehensive analysis of chromothripsis in 2,658 human cancers using whole-genome sequencing
No full textauthor correctio
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