244 resultados para Siemens


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While the indirect and direct cost of occupational musculoskeletal disorders (MSD) causes a significant burden on the health system, lower back pain (LBP) is associated with a significant portion of MSD. In Australia, the highest prevalence of MSD exists for health care workers, such as nurses. The digital human model (DHM) Siemens JACK was used to investigate if hospital bed pushing, a simple task and hazard that is commonly associated with LBP, can be simulated and ergonomically assessed in a virtual environment. It was found that while JACK has implemented a range of common physical work assessment methods, the simulation of dynamic bed pushing remains a challenge due to the complex interface between the floor and wheels, which can only be insufficiently modelle

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[ES]Este proyecto se concibe como respuesta a la creciente demanda de piezas de turbomaquinaria y a la problemtica que entraa su fabricacin. En los procesos de mecanizado de tales piezas de geometras complejas, las colisiones entre herramienta-mquina-utillaje son un problema real que puede ocasionar serias prdidas econmicas. Se implementar una metodologa de simulacin con Siemens NX9 previa a la fabricacin para evitar tales colisiones.

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The standard design process for the Siemens Industrial Turbomachinery, Lincoln, Dry Low Emissions combustion systems has adopted the Eddy Dissipation Model with Finite Rate Chemistry for reacting computational fluid dynamics simulations. The major drawbacks of this model have been the over-prediction of temperature and lack of species data limiting the applicability of the model. A novel combustion model referred to as the Scalar Dissipation Rate Model has been developed recently based on a flamelet type assumption. Previous attempts to adopt the flamelet philosophy with alternative closure models have failed, with the prediction of unphysical phenomenon. The Scalar Dissipation Rate Model (SDRM) was developed from a physical understanding of scalar dissipation rate, signifying the rate of mixing of hot and cold fluids at scales relevant to sustain combustion, in flames and was validated using direct numerical simulations data and experimental measurements. This paper reports on the first industrial application of the SDRM to SITL DLE combustion system. Previous applications have considered ideally premixed laboratory scale flames. The industrial application differs significantly in the complexity of the geometry, unmixedness and operating pressures. The model was implemented into ANSYS-CFX using their inbuilt command language. Simulations were run transiently using Scale Adaptive Simulation turbulence model, which switches between Large Eddy Simulation and Unsteady Reynolds Averaged Navier Stokes using a blending function. The model was validated in a research SITL DLE combustion system prior to being applied to the actual industrial geometry at real operating conditions. This system consists of the SGT-100 burner with a glass square-sectioned combustor allowing for detailed diagnostics. This paper shows the successful validation of the SDRM against time averaged temperature and velocity within measurement errors. The successful validation allowed application of the SDRM to the SGT-100 twin shaft at the relevant full load conditions. Limited validation data was available due to the complexity of measurement in the real geometry. Comparison of surface temperatures and combustor exit temperature profiles showed an improvement compared to EDM/FRC model. Furthermore, no unphysical phenomena were predicted. This paper presents the successful application of the SDRM to the industrial combustion system. The model shows a marked improvement in the prediction of temperature over the EDM/FRC model previously used. This is of significant importance in the future applications of combustion CFD for understanding of hardware mechanical integrity, combustion emissions and dynamics of the flame. Copyright 2012 by ASME.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

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Towards a holistic perspective of CRM, this project aims to diagnose and propose a strategy and market segmentation for Siemens Healthcare. The main underlying principle is to apply a full customer-centric outlook taking own business properties into consideration while preserving Siemens Healthcares culture and vision. Mainly focused on market segmentation, this project goes beyond established boundaries by employing an unbiased perspective of CRM while challenging current strategy, goals, processes, tools, initiatives and KPIs. In order to promote a sustainable business excellence strategy, this project aspires to streamline CRM strategic importance and driving the company one step forward.

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This work project is a business plan for a project regarding corporate social entrepreneurship that will be developed by Siemens Switchboard Factory in Corroios. The main purpose of this project is to understand the viability of a partnership between Siemens AGs and CERCISA in order to include disabled people into Siemens AGs Energy Management Division, with the goal of achieving social and economic impact by insources activities while complying with the law1. The produced output, a business plan, aims to study and understand the practical suitability and feasibility of the concepts and propose a sustainable project that can be replicated, starting with a pilot testing and validation period.

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El presente trabajo de investigacin: Diseo de un Modelo de Gestin basado en Responsabilidad Social Empresarial. Caso: Nokia Siemens Networks Ecuador S.A. se compone de 3 captulos: 1.- Responsabilidad Social Empresarial, 2.- Diagnstico de la empresa Nokia Siemens Networks Ecuador S.A. y 3.- Diseo del Modelo de Gestin de Responsabilidad Social Empresarial. El primer captulo contempla el marco terico donde se analizan los conceptos de varios autores acerca de la Responsabilidad Social Empresarial, de la norma ISO 26000, as como ejemplos de empresas ecuatorianas que ya utilizan a la RSE como parte fundamental de su estrategia de negocios. Finalmente se citan entidades que promueven la Responsabilidad Social Empresarial en el Ecuador. En el segundo captulo se realiza un estudio estratgico de la situacin actual de la empresa, se analiza su modelo de gestin y su estrategia de negocios. Finalmente en el tercer captulo se realiza el diseo del Modelo de Gestin basado en Responsabilidad Social Empresarial para la empresa Nokia Siemens Networks Ecuador S.A. El mtodo de investigacin de la tesis se bas en el estudio descriptivo de esta empresa en su conjunto, de su modelo de gestin y de sus principios (visin, misin, valores corporativos, objetivos estratgicos, polticas) para determinar de una manera inferencial y con un enfoque predominante cualitativo las acciones y cambios que debe implementar Nokia Siemens Networks Ecuador S.A. en su modelo de gestin actual para que est enfocado en una Responsabilidad Social Empresarial. La empresa Nokia Siemens Networks es una multinacional de Telecomunicaciones que naci en 2007 como la fusin de la empresa alemana Siemens con la finlandesa Nokia. En Ecuador, esta multinacional tiene su representacin con la empresa Nokia Siemens Networks Ecuador S.A. Palabras Claves: Responsabilidad Social, Modelo de Gestin, competitividad, sustentabilidad, estrategia de negocio, stakeholders.

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Trata da anlise de um programa de Qualidade Total nas empresas do grupo Siemens fazendo uma avaliao comparativa entre a metodologia das quatro vozes e a teoria das restries. A valia a partir do material levantado na empresa pela metodologia das quatro vozes, quais os efeitos indesejveis segundo a teoria das restries que se pode encontrar no referido material e verifica a existncia de restries no identificadas e no contempladas. Faz uma anlise crtica do processo sob o ponto de vista da teoria das restries

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Trata da anlise de um programa de Qualidade Total nas empresas do grupo Siemens fazendo uma avaliao comparativa entre a metodologia das quatro vozes e a teoria das restries. A valia a partir do material levantado na empresa pela metodologia das quatro vozes, quais os efeitos indesejveis segundo a teoria das restries que se pode encontrar no referido material e verifica a existncia de restries no identificadas e no contempladas. Faz uma anlise crtica do processo sob o ponto de vista da teoria das restries.

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It is very relevant, for academic or for society purposes as a whole the subject "corruption", a recurring problem that plagues companies and Governments in various parts of the world. Many recent cases draw attention to this topic, but one in particular, the case of corruption of the company Siemens AG, that resulted in the payment of the largest fines in the history on your model, based on the terms of the FCPA since it became law in 1977. This event caters specifically to the objective of this work which is to make an analysis based on agency theory and the codes of good practices of corporate governance on how large companies revising their corporate management systems and practices aiming at the recovery of its institutional image after significant impact on the company, such as the corruption scandal in which Siemens was involved. For this study, we opted for qualitative research as a methodological path contemplating the single case study. In the process of data collection were used data obtained through documentary research about the corruption scandal on public collection available in the internet. Open conversations were made with 3 compliance Department officials of Siemens for the purposes of understanding the case with. At the end of this work, it was observed in the Siemens turnaround process a correlation between what was proposed by the Agency Theory about internal control Systems based on what was accomplished by the company when promoted an extensive restructuring of the Department of compliance and corporate governance system, the improvement of internal controls, as well as the creation of detection tools , control, analysis and prevention of fraud, which were used to minimize the effects generated by the conflict of interest covered by the theory of Agency. KEY WORDS: Corporate Governance; Compliance; Corruption; Turnaround, Agency Theory

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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)

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Edicin revisada y corregida por Mara del Carmen Martn Marichal, Elosa llavero Ruiz, Clara Montenegro Artiles ; Prlogo de Rosario lvarez Martnez

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Polysilicon cost impacts significantly on the photovoltaics (PV) cost and on the energy payback time. Nowadays, the besetting production process is the so called Siemens process, polysilicon deposition by chemical vapor deposition (CVD) from Trichlorosilane. Polysilicon purification level for PV is to a certain extent less demanding that for microelectronics. At the Instituto de Energa Solar (IES) research on this subject is performed through a Siemens process-type laboratory reactor. Through the laboratory CVD prototype at the IES laboratories, valuable information about the phenomena involved in the polysilicon deposition process and the operating conditions is obtained. Polysilicon deposition by CVD is a complex process due to the big number of parameters involved. A study on the influence of temperature and inlet gas mixture composition on the polysilicon deposition growth rate, based on experimental experience, is shown. Moreover, CVD process accounts for the largest contribution to the energy consumption of the polysilicon production. In addition, radiation phenomenon is the major responsible for low energetic efficiency of the whole process. This work presents a model of radiation heat loss, and the theoretical calculations are confirmed experimentally through a prototype reactor at our disposal, yielding a valuable know-how for energy consumption reduction at industrial Siemens reactors.

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Proyecto de gra elctrica para el servicio de un taller de hornos Martin-Siemens de 12 toneladas