27 research outputs found

    Controle de l'instabilite de Benard Von Karman en aval d'un obstacle chauffe a faible nombre de Reynolds

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    SIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : T 81771 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

    From FMEA as a problem solving method to a design-oriented process: Toward a design perspective of FMEA

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    International audienceThe main question of this paper tries to answers: How to explain FMEA difficulties and how to improve FMEA methodology in order to be able to design a better risk management strategy in NPD? First, this research will discuss the FMEA procedure, its history, its main concepts and its current weakness. Then, we propose to highlight that the limits of FMEA procedure can be linked to the limits of a problem-solving paradigm. We reveal that current vision of engineering design, and particularly FMEA procedure, is based on problem solving perspective, which is restricted by the “bounded-rationality” model. From the concept of “expandable rationality” we propose to revisit the theoretical framework of the FMEA to explain why FMEA cannot be reduced to problem solving. Finally, we argue that FMEA procedure is a full design activity and we propose to extend the initial FMEA methodology, by using CK design theory. The research was carried out in STMicroelectronics manufacturing department, more specifically in the Engineering Competences Center located in Crolles (France)

    J Neurol

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    The history of mankind is marked by numerous epidemics, some of which involved diseases of the peripheral nervous system, either infectious or otherwise. We describe here the three main infectious causes of epidemics that affect the peripheral nervous system: leprosy, poliomyelitis and diphtheria. We then discuss the main epidemics of immune-mediated origin

    Epidemics and outbreaks of peripheral nervous system disorders: II. Toxic and nutritional causes

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    International audiencePeripheral neuropathies have various causes, both infectious and non-infectious. When we think of “epidemics”, we often refer to an infectious or even post-infectious origin. Nevertheless, the history of mankind is marked by episodes of epidemics of peripheral neuropathies of non-infectious nature, either of nutritional or toxic origin: we present here the main causes of such epidemics

    J Neurol Sci

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    Olfaction, one of our five main qualitative sensory abilities, is the action of smelling or the capacity to smell. Olfactory impairment can be a sign of a medical problem, from a benign nasal/sinus problem up to a potentially serious brain injury. However, although clinicians (neurologists or not) usually test the olfactory nerves in specific clinical situations (for example, when a neurodegenerative disorder is suspected), they may omit such tests in many other situations. With the recent COVID-19 pandemic, the resurgence of anosmia has reminded us of the importance of testing this sensorineural function. We retrace here the main historical steps and discoveries concerning olfaction and anosmia

    Simulations of Joule Effect Heating in a Bulge Test

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    International audienceThis work focuses on the integration of an electrical conduction heating of circular blank in a bulge test device. This device will be used to characterize the thermomechanical behaviour of Usibor (R) 1500 under biaxial deformation at very high temperature (to 930 degrees C). First a thermoelectric model using COMSOL Multiphysics (R) was developed to study the heating of a rectangular blank. This model is validated by comparing the calculated temperatures with thermocouples measurements. Secondly electrical field optimization is approached to obtain a fast and uniform heating of a circular blank
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