Gondolier\u27s Love : L\u27amour Du Gondolier

https://digitalcommons.library.umaine.edu/mmb-ps/3652/thumbnail.jp

Le projet CODALEMA

National audienceThis chapter presents the methodology of the radio detection of cosmic ray extensive air showers developed for the codalema experiment. We illustrate the performances and results obtained in the first four years of operation of codalema

Réconciliation sémantique des données et des services mis en œuvre au sein d’une situation collaborative

La collaboration entre organisations est l’un des principaux enjeux de l’écosystème industriel actuel. L’établissement d’une telle collaboration doit être réactive, afin de saisir les différentes opportunités, et flexibles, pour pouvoir s’adapter aux changements dans la collaboration. Pour cela, ces collaborations doivent être supportées par un système d’information (SI) dédié, en charge de fournir l’interopérabilité entre les différents SI des partenaires et capable de gérer les spécificités de la collaboration. Le projet MISE (Mediation Information System Engineering) propose une approche dirigée par les modèles permettant à l’utilisateur de concevoir un Système d’Information de Médiation (SIM) adapté au support de cette collaboration. Deux étapes sont au coeur de la conception de ce SIM : la génération du processus métier collaboratif depuis une description de la situation (niveau abstrait) et sa transformation en un système exécutable (niveau concret). Ce manuscrit s’intéresse à cette seconde phase et tente, à l’aide de technologies basées sur la connaissance, de réconcilier ces modèles métiers avec les services techniques disponibles. Après une étude du besoin et des méthodes existantes d’apport sémantique pour les différents niveaux d’abstraction, nous faisons le choix de nous intéresser aux standards SAWSDL et WSMO-Lite au niveau des services et nous proposons un nouveau mécanisme d’annotation sémantique au niveau des processus métier (appelé SABPMN), faute de standard reconnu. Les informations sémantiques ajoutées aux modèles sont ensuite exploitées lors de la transformation des processus métier en workflows exécutables proposée ici. Cette transformation se déroule alors en trois phases : (i) on recherche pour les différentes activités métier du processus le ou les service(s) qui répond(ent) au besoin métier exprimé à l’aide de mécanismes de sélection et de composition de services ; (ii) on génère pour chaque service à invoquer la transformation de données nécessaire pour garantir une bonne communication avec les autres composants ; (iii) une fois ces informations validées par l’utilisateur, on génère les fichiers nécessaires à l’exécution de ce processus sur la plateforme collaborative. Les résultats de cette thèse s’inscrivent aussi au sein du projet FUI ISTA3 (Interopérabilité de 3ème génération pour les Sous-Traitants de l’Aéronautique) qui se propose d’améliorer l’interopérabilité de la chaine logistique des sous-traitants aéronautiques de l’Aerospace Valley afin de faciliter la co-conception. Une implémentation des différents mécanismes proposés a été réalisée et est disponible sous la forme d’un prototype fonctionnel open-source. ABSTRACT : Collaboration bewteen organisations is one of nowadays main stakes in industrial ecosystem. Establishment of such collaboration must be reactive, in order to take avantage of opportunities, and flexible, in order to adapt collaboration to context changes. In this view, such collaboration must be supported by a dedicated Information System (IS), responsible for ensuring interoperability between partner’s IS and able to manage collaboration specificities. MISE project (Mediation Information System Engineering) provides a model-driven engineering approach dedicated to design a Mediation Information System (MIS) which supports this collaboration. Two steps are involved in the MIS design : generation of business processes from the description of the collaborative situation (abstract level) and transformation of these process models into an executable system (concrete level). This PhD thesis takes interest in the second level trying to match those business models with available technical services, thanks to knowledge based technologies. First, we studied our semantic needs and existing methods of semantic annotation for models from both business and technical levels. We chose SAWSDL and WSMOLite standards for service annotations whereas we provided a new semantic annotation mechanism for business processes (called SABPMN), in the absence of existing standard. Added semantic information is then used during the business processes to executable workflows transformation. This transformation is performed in three steps : (i) for each activity involved in business processes we search for technical services which fit our business needs thanks to our service selection and composition mechanisms ; (ii) we generate for each selected service the required data transformation to ensure correct communication with other components ; (iii) once this information validated by user, we generate technical files expected by the collaborative platform to execute those processes. Those results are in line with the FUI ISTA3 project (3rd generation of Interoperability for Aeronautics Sub-contracTors) which focuses on improving supply chain interoperability for aeronautics sub-contractors of Aerospace Valley in order to facilitate co-design. All proposed transformation and matchmaking mecanisms are implemented as open-source functional prototypes

Resenha Um discurso sobre educação a distância

Resenha Um discurso sobre educação a distânci

O MERCADO DE TRABALHO E A FORMAÇÃO DO PROFISSIONAL DE SECRETARIADO EXECUTIVO

Analysis on the influence and the determination performed by the labor market in pedagogical practice relating to the Executive Secretarial professional. Critical evaluation on the possibilities and answers from Educational Institutions towards market needs.Análise da influência e das determinações que o mercado de trabalho exerce nas práticas pedagógicas relacionadas com a formação do profissional de Secretariado Executivo. Avaliação crítica das possibilidades e respostas das Instituições de Ensino diante das demandas do mercado

Radio Detection of Cosmic Ray Air Showers with Codalema

Studies of the radio detection of Extensive Air Showers is the goal of the demonstrative experiment CODALEMA. Previous analysis have demonstrated that detection around $5.10^{16}$ eV was achieved with this set-up. New results allow for the first time to study the topology of the electric field associated to EAS events on a event by event basis.Comment: 6 pages, 4 figures Proceedings of the Rencontres de Moriond, Very High Energy Phenomena in the Universe, La Thuile, Italy (March 12-19, 2005

Radio Detection of Extensive Air Showers with CODALEMA

The principle and performances of the CODALEMA experimental device, set up to study the possibility of high energy cosmic rays radio detection, are presented. Radio transient signals associated to cosmic rays have been identified, for which arrival directions and shower's electric field topologies have been extracted from the antenna signals. The measured rate, about 1 event per day, corresponds to an energy threshold around 5.10^16 eV. These results allow to determine the perspectives offered by the present experimental design for radiodetection of UHECR at a larger scale.Comment: 4 pages and 3 figures. To appear in the Proceedings of the 29th ICRC, Pune (2005

A Medium Resolution Near-Infrared Spectral Atlas of O and Early B Stars

We present intermediate resolution (R ~ 8,000 - 12,000) high signal-to-noise H- and K-band spectroscopy of a sample of 37 optically visible stars, ranging in spectral type from O3 to B3 and representing most luminosity classes. Spectra of this quality can be used to constrain the temperature, luminosity and general wind properties of OB stars, when used in conjunction with sophisticated atmospheric model codes. Most important is the need for moderately high resolutions (R > 5000) and very high signal-to-noise (S/N > 150) spectra for a meaningful profile analysis. When using near-infrared spectra for a classification system, moderately high signal-to-noise (S/N ~ 100) is still required, though the resolution can be relaxed to just a thousand or two. In the appendix we provide a set of very high quality near-infrared spectra of Brackett lines in six early-A dwarfs. These can be used to aid in the modeling and removal of such lines when early-A dwarfs are used for telluric spectroscopic standards.Comment: 12 pages, 3 tables, 14 figures. AASTex preprint style. To appear in ApJS, November 2005. All spectra are available by contacting M.M. Hanso

A informação como semiformação nas práticas de leitura no ciberespaço

Análise do ciberespaço a partir dos riscos de se reduzir o conhecimento à informação, levando as práticas de leitura no hipertexto a uma condição de semiformação cultural. Ressalta-se a experiência formativa por meio da literatura como um meio de se abordar o texto virtual de modo criativo e crítico