Zugl.: Passau, Univ., Diss., 2007

Le Contrôle Non Destructif (CND) hyperfréquence consiste à examiner un matériau de telle manière qu’à l’issue de ce contrôle, son utilisation future n’en soit pas affectée. Ce type de caractérisation est généralement réalisé au travers de la mesure des propriétés de réflexion ou/et de transmission du matériau sous test par un analyseur de réseaux vectoriel conventionnel. Cependant, ce type d’appareillage s’avère surdimensionné en termes d’éventail de mesure et donc de coût pour un usage hors laboratoire. Aussi, nous avons développé, dans une optique de faible coût, des systèmes basés sur la technique six-port. En particulier, dans ce travail, un double réflectomètre quatre-port est développé pour la mesure des paramètres de réflexion et de transmission d’un quadripôle passif dans la bande de 55 - 65 GHz. La proposition d’une instrumentation plus complète, intégrant les ressources matérielles et logicielles, permet d’entrevoir des développements de systèmes spécialisés dans le domaine de la caractérisation hyperfréquence. Ainsi, nous avons adjoint des solutions logicielles, basée sur les réseaux de neurones artificiels, pour le traitement des grandeurs mesurées, afin de satisfaire aux besoins d’une Évaluation Non Destructive plus quantitative. Enfin, dans le but d’effectuer des caractérisations de défauts dont les dimensions sont inférieures à la longueur d’onde, un microscope micro-ondes constitué du système millimétrique associé à une sonde à ondes évanescentes a été proposé. Cet ensemble permet de relever les variations en module et en phase du coefficient de réflexion du matériau sous test, de manière sans contact. / Non Destructive microwave Testing (NDT) consists in examining a material so that after testing, its future use is not affected. Such characterization is usually achieved through the measurement of reflection and/or transmission properties of the material under test by a vector network analyzer. However, this type of equipment is oversized in terms of measurements abilities and cost for a use outside the laboratory. In order to overcome this limitation, we have developed, with a view to low cost, systems based on the six-port technique. In particular, a dual four-port reflectometer is developed for the measurement of reflection and transmission parameters of passive devices in the frequency range of 55 - 65 GHz. In addition, we have proposed complete solution which integrates hardware and software resources allowing the development of specialized systems in the field of microwave characterization. The added software solutions, based on artificial neural networks contribute to satisfy the needs of a non-destructive, quantitative evaluation. Finally, in order to perform characterization of defects whose dimensions are smaller than the wavelength, a mm-wave microscope formed by the mm-wave system and associated with an evanescent wave probe has been proposed. This ensemble reveals changes in magnitude and phase reflection coefficients of the material under test, allowing non-contact measurements. ___________________________________________________________________________

Aim of this thesis is to show practical usage of Six Sigma tools. Six sigma is considered a system of quality control, managerial style or methodology. It is always supported by solid data as it originates in statistics.. Concept is used for improvement of current processes, design of new ones or their better management with one ultimate goal -- refinement of business results. Core of its success is a customer oriented focus and expectation fulfilment. Six Sigma tools can be employed across all business actvities from manufacture to administration. Practical part describes employment of Six sigma tools in four separate chapters. Tools were applied on a real existing company. I am focused on Voice of Customer in the first chapter, which is essential for all other activities across company. Its strong feature is customer feedback. Next chapter deals with 5S tools and their implementation in manufacturing plants and their benefits for company. Third and last chapter describe two projects, which were implemented to back office. Refinement processes were based on DMAIC procedure. Their goal was to accelerate pricing process and sublime output, which is critical for management decision.

The thesis suggests quality management for small organizations and focuses on its implementation, using the DMAIC methodology in accordance with ČSN EN ISO 9001. First, a chosen small organization will be analysed; next, the key processes will be defined and their setting in accordance with ČSN EN ISO 9001 provided.

No description available.

No description available.

This paper examines how and to what extent the District Six Museum has contributed the current redevelopment of the District Six site. Since its inception, the Museum has challenged accepted definitions of heritage and has transcended common museological practices through its initiative as an institution to go beyond nurturing the memory of one of the most iconic sites of forced removal in South Africa, but to also contribute to the site’s redevelopment. The Museum grew out of an organisation that was dedicated to protecting the empty wasteland that the District had become since it was announced a ‘white area’ by the apartheid government and bulldozed. The same group of people became passionate not only about protecting the site, and conducting “memory work” surrounding it but eventually contributing to a process of restitution and rebuilding the homes and lives of those whose houses where destroyed and communities were fragmented. This paper considers such an initiative, which began in a pre-democratic environment where the concept of heritage was ill-defined and cultural institutions often served apartheid agendas. This consideration will involve an examination of the way in which the District Six Museum developed; the Museum’s role and how this role has evolved and the District Six that has been re-imagined through the Museum and how this “idea” is contributing to re-development.

O Lean Six Sigma é a metodologia originada a partir da integração das metodologias Lean e Six Sigma. O Lean Six Sigma procura eliminar as perdas e reduzir os defeitos, agregando os benefícios de cada uma das duas metodologias que a dão origem. O objetivo deste trabalho é aplicar a metodologia Lean Six Sigma para melhoria de um processo produtivo. Neste trabalho é apresentada uma revisão bibliográfica sobre as metodologias Lean e Six Sigma, buscando a compreensão das origens do Lean Six Sigma, e uma revisão sobre a metodologia Lean Six Sigma. Baseado na revisão bibliográfica é apresentada uma metodologia para aplicação do Lean Six Sigma, que tem por estrutura o DMAIC (Define, Measure, Analyze, Improve and Control). Na sequência esta metodologia é aplicada para melhoria de um processo produtivo. Os resultados da aplicação do Lean Six Sigma foram: aumento do nível de sigma e redução dos defeitos do processo, demonstrando que as metodologias Lean e Seis Sigma podem ser integradas, e como ocorre essa integração. Os fatores de sucesso da aplicação da metodologia Lean Six Sigma também foram evidenciados. / Lean Six Sigma is a methodology originated from the integration of Lean and Six Sigma. Lean Six Sigma seeks for eliminate waste and reduce defects, combining benefits from both methodologies. The objective of this dissertation is apply the Lean Six Sigma methodology to improve a production process. In this dissertation is presented a bibliography review about the Lean and Six Sigma methodology, looking for understanding of the Lean Six Sigma sources and a review about the Lean Six Sigma methodology. Based on the bibliography review is presented a methodology to apply Lean Six Sigma, that has the DMAIC as the structure (Define, Measure, Analyze, Improve and Control). This methodology is applied to improve a production process. The results of the Lean Six Sigma application were the increase of sigma level and reduction of process defects, showing that Lean and Six Sigma can be combined and how this combination happens. The success factors of the application of Lean Six Sigma methodology were evidenced.

O Lean Six Sigma é a metodologia originada a partir da integração das metodologias Lean e Six Sigma. O Lean Six Sigma procura eliminar as perdas e reduzir os defeitos, agregando os benefícios de cada uma das duas metodologias que a dão origem. O objetivo deste trabalho é aplicar a metodologia Lean Six Sigma para melhoria de um processo produtivo. Neste trabalho é apresentada uma revisão bibliográfica sobre as metodologias Lean e Six Sigma, buscando a compreensão das origens do Lean Six Sigma, e uma revisão sobre a metodologia Lean Six Sigma. Baseado na revisão bibliográfica é apresentada uma metodologia para aplicação do Lean Six Sigma, que tem por estrutura o DMAIC (Define, Measure, Analyze, Improve and Control). Na sequência esta metodologia é aplicada para melhoria de um processo produtivo. Os resultados da aplicação do Lean Six Sigma foram: aumento do nível de sigma e redução dos defeitos do processo, demonstrando que as metodologias Lean e Seis Sigma podem ser integradas, e como ocorre essa integração. Os fatores de sucesso da aplicação da metodologia Lean Six Sigma também foram evidenciados. / Lean Six Sigma is a methodology originated from the integration of Lean and Six Sigma. Lean Six Sigma seeks for eliminate waste and reduce defects, combining benefits from both methodologies. The objective of this dissertation is apply the Lean Six Sigma methodology to improve a production process. In this dissertation is presented a bibliography review about the Lean and Six Sigma methodology, looking for understanding of the Lean Six Sigma sources and a review about the Lean Six Sigma methodology. Based on the bibliography review is presented a methodology to apply Lean Six Sigma, that has the DMAIC as the structure (Define, Measure, Analyze, Improve and Control). This methodology is applied to improve a production process. The results of the Lean Six Sigma application were the increase of sigma level and reduction of process defects, showing that Lean and Six Sigma can be combined and how this combination happens. The success factors of the application of Lean Six Sigma methodology were evidenced.

O Lean Six Sigma é a metodologia originada a partir da integração das metodologias Lean e Six Sigma. O Lean Six Sigma procura eliminar as perdas e reduzir os defeitos, agregando os benefícios de cada uma das duas metodologias que a dão origem. O objetivo deste trabalho é aplicar a metodologia Lean Six Sigma para melhoria de um processo produtivo. Neste trabalho é apresentada uma revisão bibliográfica sobre as metodologias Lean e Six Sigma, buscando a compreensão das origens do Lean Six Sigma, e uma revisão sobre a metodologia Lean Six Sigma. Baseado na revisão bibliográfica é apresentada uma metodologia para aplicação do Lean Six Sigma, que tem por estrutura o DMAIC (Define, Measure, Analyze, Improve and Control). Na sequência esta metodologia é aplicada para melhoria de um processo produtivo. Os resultados da aplicação do Lean Six Sigma foram: aumento do nível de sigma e redução dos defeitos do processo, demonstrando que as metodologias Lean e Seis Sigma podem ser integradas, e como ocorre essa integração. Os fatores de sucesso da aplicação da metodologia Lean Six Sigma também foram evidenciados. / Lean Six Sigma is a methodology originated from the integration of Lean and Six Sigma. Lean Six Sigma seeks for eliminate waste and reduce defects, combining benefits from both methodologies. The objective of this dissertation is apply the Lean Six Sigma methodology to improve a production process. In this dissertation is presented a bibliography review about the Lean and Six Sigma methodology, looking for understanding of the Lean Six Sigma sources and a review about the Lean Six Sigma methodology. Based on the bibliography review is presented a methodology to apply Lean Six Sigma, that has the DMAIC as the structure (Define, Measure, Analyze, Improve and Control). This methodology is applied to improve a production process. The results of the Lean Six Sigma application were the increase of sigma level and reduction of process defects, showing that Lean and Six Sigma can be combined and how this combination happens. The success factors of the application of Lean Six Sigma methodology were evidenced.