30 research outputs found

    PROTEUS – Creating Distributed Maintenance Systems through an Integration Platform

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    International audienceThis paper is based on the results from the project PROTEUS sponsored by the French Ministry of Economy, Finance and Industry and the Federal Ministry of Education and Research of Germany under the label of European Commission Initiative ITEA. It presents the architecture and the basic concepts of an integration platform, which constitutes the framework of systems implementing the tasks dedicated to remote maintenance, as well as other applications, for large and medium scale industrial installation. The approach illustrated here is useful for executing any maintenance strategy by implementing the relevant means for controlling workflow between several system components as well as the component's integration itself. The paper first points out the need for designing such a maintenance-oriented platform, continues with a requirements analysis to a global maintenance system followed by the description of the fundamentals of a maintenance application integration system. Finally a sample implementation of a maintenance scenario is given

    Building Conceptual Models by Knowledge Management Methodology

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    Colloque avec actes et comité de lecture. internationale.International audienceThe article proposes to use an alternative approach to design and validation processes of loosely integrated distributed co-operating systems. The example of such a process constitutes the technological background of ITEA project PROTEUS. One of the major technical challenges of PROTEUS project consists in the development of a platform which would facilitate the integration, without major functional modifications, of existent software tools which originally are not designed to work in co-operation. The tools cannot be modified profoundly solely in view of their integration, only a supplementary layer of data interpretation can be introduced. The fact that the tools mustn't be modified in order to follow the integration requirements creates the need of a top level description. Commonly used UML[1] representation of overall tool service is not sufficient to provide distributed view on the co-operation scenarios. Most naturally the UML description is the best adapted when one attempts to obtain a semi automatic code generation. Yet, the UML description is not sufficient for formal verifications such as functional consistency proofs. In order to conciliate the divergent criteria it is proposed to use a higher level description language. This article intends to show the potential of knowledge management methodology used to build conceptual models of domains as a means for integration of UML representations of distributed systems

    Genome-wide analysis of Brucella melitensis genes required throughout intranasal infection in mice

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    Brucellae are facultative intracellular Gram-negative coccobacilli that chronically infect various mammals and cause brucellosis. Human brucellosis is among the most common bacterial zoonoses and the vast majority of cases are attributed to B .melitensis .Using transposon sequencing (Tn-seq) analysis, we showed that among 3369 predicted genes of the B .melitensis genome, 861 are required for optimal growth in rich medium and 186 additional genes appeared necessary for survival of B .melitensis in RAW 264.7 macrophages in vitro .As the mucosal immune system represents the first defense against Brucella infection, we investigated the early phase of pulmonary infection in mice. In situ analysis at the single cell level indicates a succession of killing and growth phases, followed by heterogenous proliferation of B .melitensis in alveolar macrophages during the first 48 hours of infection. Tn-seq analysis identified 94 additional genes that are required for survival in the lung at 48 hours post infection. Among them, 42 genes are common to RAW 264.7 macrophages and the lung conditions, including the T4SS and purine synthesis genes. But 52 genes are not identified in RAW 264.7 macrophages, including genes implicated in lipopolysaccharide (LPS) biosynthesis, methionine transport, tryptophan synthesis as well as fatty acid and carbohydrate metabolism. Interestingly, genes implicated in LPS synthesis and β oxidation of fatty acids are no longer required in Interleukin (IL)-17RA -/- mice and asthmatic mice, respectively. This demonstrates that the immune status determines which genes are required for optimal survival and growth of B .melitensis in vivo .info:eu-repo/semantics/publishe

    La Maintenance intégrée : Le projet PROTEUS

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    Cette présentation est dédiée aux résultats de projet européen ITEA PROTEUS consacré à la maintenance intégrée. Nous montrons sur un exemple les besoins en système d'information des opérations de maintenance et leur complexité. Nous montrons ensuite comment les principes de la solution générique PROTEUS facilitent l'intégration de systèmes existants a priori non interopérables dans un dispositif homogène. La solution s'appuie sur la définition d'une ontologie du dispositif à maintenir qui de plus établit les liens entre tous les éléments des systèmes d'information existants. L'usage de Web services standardise les méthodes d'accès aux informations

    The semantics of person and de se effects in free indirect discourse

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    In this contribution we will address the main puzzling empirical issues that have been formulated around Free Indirect Discourse (FID): the constraints on the use of first person pronouns and of proper names (as well as of definite descriptions), the reasons why different grammatical features (person, gender, number) give rise to presuppositions that must be resolved at different levels of interpretation in FID, the factors that account for the observation that person and tense behave similarly in FID. At the same time, we will also discuss the main controversies to which the ongoing debate on FID has given rise in the literature, showing that Schlenker (Mind Lang 19(3):279-304, 2004)'s distinction between a Context of Thought (CT) and a Context of Utterance (CU) still provides a fundamentally valid insight into the nature of FID, in spite of many qualifications that are necessary and some well-motivated criticism. However, our main task here is more ambitious than simply taking a stand on the many unsettled controversies surrounding FID. In fact, we claim that Schlenker's split between CU and CT can be derived in a principled way from the inner nature of FID as a linguistic process of 'phenomenal identification', whereby a Higher Experiencer attempts at reproducing (at a distinct time) the phenomenal experience proper to a Lower Experiencer. This distinction between qualitatively identified but numerically distinct experiences provides the conceptual basis for the derivation of virtually all remarkable properties of FID (including its somehow intermediate status between Direct and Indirect Discourse), while connecting, at the same time, with some intriguing semantic properties of first-person pronouns, such as the different varieties of de se readings

    Immunity to Error through Misidentification and (Direct and Indirect) Experience Reports

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    Inthiscontribution,weaddresstheissuesconcerningthesemanticvalue 5 of Wittgenstein\u2019s subject \u201cI\u201d, as in (i) \u201cI have a toothache\u201d, resulting from the use 6 of predicates that involve first-person knowledge of the mental states to which they 7 refer. As is well-known, these contexts give rise to the phenomenon of \u2018immunity 8 to error through misidentification\u2019 (IEM): the utterer of (i) cannot be mistaken as 9 to whether he is the person having a toothache. We provide a series of arguments 10 in favor of a principled distinction between a de facto IEM, grounded in perceptual 11 and proprioceptive judgments, and a de iure IEM, grounded in experience reports 12 whereby the experience wears the experiencer on its sleeve. From this perspective, 13 the no-referent account of subject \u201cI\u201d advocated by Wittgenstein/Anscombe is 14 correct.Infact,weshowhowthisanalysiscanbemadecompatiblewithaKaplanian 15 account of first-person indexicals, by identifying the speaker in the context of 16 utterance with the person who has access to the reported private experienc

    PROTEUS - An Integration Platform for Distributed Maintenance Systems

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    Colloque avec actes et comité de lecture. Internationale.International audienceThis account presents the architecture and the basic operation principle of an integration platform, which constitutes the framework of the system implementing the task of remote maintenance for the large and medium scale industrial installation. The approach illustrated here is useful to drive every maintenance strategy by implementing the relevant means for controlling workflow between several system components as well as the component s integration itself. The account first points out the need for designing such a platform, continues with a requirements analysis to a global maintenance system followed by the description of the fundamentals of a maintenance application integration system. Finally an example for the implementation of a maintenance scenario is given
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