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International audience; The psychological contract is defined as an employee’s belief in mutual duties between his/her employer and him/herself. These are based solely on the perception of the organization’s promises, which do not necessarily match with reality. Our study seeks to measure the perception of the fulfillment of the psychological contract by the sample of 119 ungraduated workers from a French automobile plant in restructuring situation. The results show that workers perceive the fulfillment of the employer’s obligations as well as the fulfillment of their obligations in the presence of a Perceived Organizational Support (POS).; Le contrat psychologique se définit comme une croyance de l’employé à des obligations réciproques entre son employeur et lui-même. Celles-ci sont basées uniquement sur la perception des promesses de l’organisation mais qui ne correspondent pas obligatoirement à la réalité. Notre étude cherche à mesurer la perception de la réalisation du contrat psychologique de l’échantillon composé de 119 ouvriers non diplômés d’un site de production automobile français en situation de restructuration industrielle. Les résultats montrent que les ouvriers perçoivent la réalisation des obligations de l’employeur ainsi que la réalisation de leurs obligations en présence d’un Support Organisationnel Perçu (SOP).

International audience

International audience; Listed among the UNESCO World Heritage Sites in 2007, Bordeaux city welcomes more than five million tourists annually. Sharing its age-old wine culture, demystifying its meaning, protecting and passing on this intangible universal heritage has become the mission of the important cultural wine centre “La Cité de Vin” that opened its doors in June 2016. An 81 million euro project with a staff of 200, the centre covers more than 14,000 m2, hosts a state-of-the art experiential museum, temporary exhibitions, cultural and wine-tasting workshops, movie projections, restaurants, boutiques, a wine cellar, a library as well as professional and academic seminars. It has successfully attained the target of receiving 450,000 paying customers per annum in its first year of operation.This case study analyses the challenging issues of experience design and technological innovations in the cultural context of the world of wine, focusing on the different aspects of museum design and original scenography solutions to meet visitor expectations. The case also offers valuable insights on the effectiveness of design choices in the wine tourism sector.; Listed among the UNESCO World Heritage Sites in 2007, Bordeaux city welcomes more than five million tourists annually. Sharing its age-old wine culture, demystifying its meaning, protecting and passing on this intangible universal heritage has become the mission of the important cultural wine centre “La Cité de Vin” that opened its doors in June 2016. An 81 million euro project with a staff of 200, the centre covers more than 14,000 m2, hosts a state-of-the art experiential museum, temporary exhibitions, cultural and wine-tasting workshops, movie projections, restaurants, boutiques, a wine cellar, a library as well as professional and academic seminars. It has successfully attained the target of receiving 450,000 paying customers per annum in its first year of operation.This case study analyses the challenging issues of experience design and technological innovations in the cultural context of the world of wine, focusing on the different aspects of museum design and original scenography solutions to meet visitor expectations. The case also offers valuable insights on the effectiveness of design choices in the wine tourism sector.

International audience

International audience

International audience

International audience

To contribute to a possible redefinition of the Système international d'unités, french national metrology institutes are developping a watt balance experiment.This experiment, whose principle has been proposed in 1976 by B. Kibble (NPL), allows to link a standard mass m (calibrated against the international prototype of the kilogram) to the Planck constant h. To redefine the unit of mass by fixing the value of this constant, measurement of the h/m ratio must be performed with a relative uncertainty of 10−8.Realization of the experiment requires to build mechanical systems, a magnetic circuit and a translation stage in particular. For our experiment, we have chosen to design (i) a magnetic circuit with permanent magnets producing an axisymetric flux density field of about one tesla whose relative variations must be smaller than 10−4 in the air gap, and (ii) a flexure stage constraining a coil to travel inside the air gap of the circuit along a 80mm rectilinear and vertical translation.We study the effects, on the result of the experiment, of the deviations of the magnetic circuit and the translation stage from their nominal definitions. Considering compromises inherent in any realization, we deduce from this study acceptable differences and we present the design, realization, and characterization of these two mechanical systems., En vue de contribuer à une possible redéfinition du Système international d'unités, les laboratoires nationaux de métrologie français développent une expérience de balance du watt.Cette expérience, dont le principe a été proposé en 1976 par B. Kibble (NPL), permet de relier la masse m d'un étalon (raccordé au prototype international du kilogramme) à la constante de Planck h. Pour permettre, à terme, de redéfinir l'unité de masse en fixant la valeur de cette constante, la mesure du rapport h/m doit être réalisée avec une incertitude relative de l'ordre de 10−8. La mise en œuvre de l'expérience exige de construire des systèmes mécaniques, un circuit magnétique et un système de translation notamment. Pour notre expérience, nous avons choisi de concevoir (i) un circuit magnétique à aimants permanents délivrant un champ d'induction axisymétrique, d'intensité égale à un tesla environ, et dont l'amplitude des variations doit être limitée à 10−4 en valeur relative dans la partie utile de l'entrefer, et (ii) un système de translation à liaisons flexibles contraignant une bobine à se déplacer dans l'entrefer du circuit selon une translation rectiligne et verticale de 80mm de long.Nous étudions les effets, sur le résultat de l'expérience, des écarts de réalisation du circuit magnétique et du système de translation par rapport à leur définition nominale. Nous en déduisons des écarts admissibles tenant compte des compromis incontournables dans toute réalisation et nous présentons la conception, la réalisation et la caractérisation des deux systèmes mis en œuvre.