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7. As vivências urbanas da mulher negra com o seu cabelo: indícios de dificuldades para o cumprimento dos ODS da agenda 2030 brasileira?

Author

Arcoverde Moreira, Vanessa Suellen, Fideliz da Silva, Iris, Bezerra da Silva, Alexandre Magno, de Sá Queiroz, Pedro Felipe, Ferreira Silva, Bianca Gabriely, José Silva, Marcone, and da Nóbrega Costa, Flávia Zimmerle

Abstract

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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14. A new Lean Six Sigma framework for improving competitiveness.

Author

da Silva, Iris Bento, Filho, Moacir Godinho, Agostinho, Oswaldo Luiz, and Lima Junior, Orlando Fontes

Abstract

Manufacturing companies strive for ever-increasing competitiveness through productivity and quality. This goal can be achieved through the implementation of lean manufacturing and six sigma methodologies. Lean manufacturing adds value by reducing waste, while six sigma eliminates variability. In this context, this article proposes a new framework within Lean Six Sigma circumstances. The framework was proposed by means of an exhaustive literature review which identified the positive points of other Lean Six Sigma frameworks available on literature. The framework was applied to a case study, and the assessments were based on semi-structured questionnaires and analysis of records and documents. The implementation was carried out in a manufacturing company in Brazil, which belongs to an American-based multinational. In the case study described herein, the manufacturing company established the proposed framework to support the combination of lean manufacturing and six sigma and introduced an enterprise-wide culture of project through the proposed Lean Six Sigma framework, which resulted in significant benefits. [ABSTRACT FROM AUTHOR]

Published
2019
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15. História do Serviço Social - resgatando uma história de mulheres.

Author

Freitas, Rita, Barros, Nivia, Mesquita, Adriana, and da Silva, Iris

Abstract

Copyright of Em Pauta is the property of Editora da Universidade do Estado do Rio de Janeiro (EdUERJ) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2018
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16. Implantação de conceitos de manufatura enxuta em célula de conformação de chapas

Author

Camargo Alves, José Augusto and da Silva, Iris Bento

Subjects
GESTÃO DA PRODUÇÃO / GESTÃO ESTRATÉGICA E ORGANIZACIONAL
Abstract

A necessidade crescente de células produtivas, cada vez mais eficientes, torna imprescindível a utilização de ferramentas de manufatura enxuta, para modificação na forma de planejar, manipular e processar o produto. Neste trabalho, será apresentado um cenário produtivo deficiente, de uma célula de conformação de chapas e os procedimentos implantados para torná-la adequada aos requisitos de demanda de uma companhia. Palavras-chave: Manufatura enxuta, Just in time, eliminação de desperdícios.

Published
2012

17. Investigation of the degradation of LSM-YSZ SOFC cathode by electrochemical impedance spectroscopy

Author

Torres da Silva, Iris Maura

Abstract

The aim of this PhD study was to investigate degradation of the LSM-YSZ cathode of anode supported Ni-YSZ/YSZ/LSM-YSZ solid oxide fuel cells. The chosen cathode materials LSM25 and 8YSZ were investigated for their compatibility and stability, to confirm that expansion/contraction or decreasing conductivity would not be a problem during degradation experiments of the cells. The experiments carried out for this purpose include x-ray diffraction, conductivity and dilatometry. LSM-YSZ/YSZ/LSM-YSZ symmetrical cells were prepared and investigated by means ofelectrochemical impedance spectroscopy, at different operating conditions. An equivalent circuit was developed for the symmetrical cell, describing the processes taking place at the LSM-YSZ cathode. This equivalent circuit was applied in degradation studies, where the processes affected by degradation over time could be pinpointed. Furthermore, it was discovered that impurities in air cause significant degradation of the cathode. Humidity was found to increase the degradation rate, but other impurities might also be present and increasing degradation. Then the anode supported Ni-YSZ/YSZ/LSM-YSZ single cells were prepared and tested. It was found that at the applied operating conditions the impedance data could not be deconvoluted as anode and cathode processes were overlapping. Nonetheless it appeared that at OCV the degradation of the cathode is similar for symmetrical and single cells. Under current degradation was significantly lower, so real performance and degradation data can only be obtained on single cells as symmetrical cells can only be tested at OCV. For single cells degradation caused by impurities from air was also observed.

Published
2012

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