Academic literature on the topic 'Sûreté et disponibilité'
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Journal articles on the topic "Sûreté et disponibilité"
GOCKO, X., J. SOUSA BARBOSA, B. POZZETTO, and C. PLOTTON. "HESITATION, REFUS VACCINAL, COVID-19 ET BIAIS COGNITIFS. UNE REVUE NARRATIVE." EXERCER 34, no. 190 (February 1, 2023): 70–75. http://dx.doi.org/10.56746/exercer.2023.190.70.
Full textde Warren, Nicolas. "Réussir la décarbonation de l’industrie française grâce à l’atout compétitif du nucléaire." Annales des Mines - Responsabilité et environnement N° 113, no. 1 (January 23, 2024): 63–66. http://dx.doi.org/10.3917/re1.113.0063.
Full textBouchareb, Meriem, Mourad Bouaziz, Mahfoud Djebien, and Mouhamed Saidani. "Formation de résidents en anesthésie-réanimation à la gestion des voies aériennes. Évaluation d’un dispositif pédagogique recourant à la simulation dans une faculté de médecine en Algérie." Pédagogie Médicale 21, no. 2 (2020): 75–82. http://dx.doi.org/10.1051/pmed/2020030.
Full textDissertations / Theses on the topic "Sûreté et disponibilité"
Betous-Almeida, Cláudia. "Construction et affinement de modèles de sûreté de fonctionnement : application aux systèmes de contrôle-commande." Toulouse, INPT, 2002. http://www.theses.fr/2002INPT006H.
Full textJemel, Mayssa. "Stockage des données locales : sécurité et disponibilité." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0053.
Full textDue to technological advancements, people are constantly manipulating multiple connected and smart devices in their daily lives. Cross-device data management, therefore, remains the concern of several academic and industrial studies. The proposed frameworks are mainly based on proprietary solutions called private or closed solutions. This strategy has shown its deficiency on security issues, cost, developer support and customization. In recent years, however, the Web has faced a revolution in developing standardized solutions triggered by the significant improvements of HTML5. With this new version, innovative features and APIs are introduced to follow business and user requirements. The main purpose is to provide the web developer with a vendor-neutral language that enables the implementation of competing application with lower cost. These applications are related neither to the used devices nor to the installed software. The main motivation of this PhD thesis is to migrate towards the adoption of standardized solutions to ensure secure and reliable cross-device data management in both the client and server side. There is already a proposed standardized Cloud Digital Safe on the server side storage that follows the AFNOR specification while there is no standardized solution yet on the client-side. This thesis is focused on two main areas : 1) the proposal of a standardized Client Digital Safe where user data are stored locally and 2) the synchronization of these data between the Client and the Cloud Digital Safe and between the different user devices. We contribute in this research area in three ways. First, we propose a Client Digital Safe based on HTML5 Local Storage APIs. We start by strengthening the security of these APIs to be used by our Client Digital Safe. Second, we propose an efficient synchronization protocol called SyncDS with minimum resource consumption that ensures the synchronization of user data between the Client and the Cloud Digital Safe. Finally, we address security concerns, in particular, the access control on data sharing following the Digital Safe requirements
Hong, Tuan Ha Stéphane. "Programmation par aspects et tissage de propriétés : application à l'ordonnancement et à la disponibilité." Rennes 1, 2007. http://www.theses.fr/2007REN1S187.
Full textThis thesis proposes a novel approach for aspect-oriented programming by considering aspects as properties on execution traces. The semantic impact of aspects remains under control as they are constrained to select or abort program execution traces. The approach relies on finite state or temporized automata : programs and aspects are described by automata and weaving as automata product. The contributions of this thesis are both an original and formal approach where aspects are trace properties and applying it to the domains of scheduling and availability. Scheduling aspects specify constraints on the execution of networks of components. They allow to specify and enforce availability policies in order to prevent deadlocks and starvations
Martinello, Magnos. "Modélisation et évaluation de la disponibilité de services mis en oeuvre sur le web : une approche pragmatique." Toulouse, INPT, 2005. https://hal.science/tel-04595476.
Full textThis thesis presents a pragmatic modeling approach allowing designers of web-based applications and systems to evaluate the service availability provided to the users. Multiple sources of service unavailability are taken into account, in particular i) hardware and software failures affecting the servers, and ii) performance degradation (overload of servers, very long response time, etc. ). An hierarchical multi-level approach is proposed based on performability modeling, combining Markov chains and queueing models. The main concepts and the feasibility of this approach are illustrated using a web-based travel agency. Various analytical models and sensitivity studies are presented considering different assumptions with respect to the architectures, recovery strategies, faults, users profile and traffic characteristics
Dakil, Manal. "Développement d'une méthodologie conjointe d'analyse structurelle et de sûreté de fonctionnement des propriétés d'un système complexe." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0133/document.
Full textThis thesis concerns the development of analysis of structural properties in interaction with indicators of reliability. Our study focuses on (linear, bilinear or switching) structured systems, they must verify some important properties for the accomplishment of their mission. Properties depend on the structure of the system, hence the term "structural properties". The structure of the system can be represented by a graph consisting of vertices and edges. Verification of structural properties depends mainly on four basic conditions of connectivity, link distance and complete linkage. We have developed algorithms to express the form of Boolean expressions based on the edges of the graph representing the system. We consider that each edge is linked to the system components. A failure at the component level can cause changes in the structure of the system, and therefore can make a structural property unsatisfied. Thus, the structural properties are written as boolean expressions based on the operating state of the components. Using boolean expressions associated to the structural properties, reliability and / or availability can be calculated knowing the characteristics of the system components. Through this study, we can check if during the mission time of the system, a structural property remain satisfied and / or comply with a level of performance required by the specifications
Ziani, Rezki. "Vérification des objectifs de disponibilité et de maintenabilité des systèmes complexes modélisés par leurs ensembles minimaux : vers une optimisation de la sûreté des systèmes." Compiègne, 1986. http://www.theses.fr/1986COMPI250.
Full textBrissaud, Florent. "Contributions à la modélisation et à l'évaluation de la sûreté de fonctionnement de systèmes de sécurité à fonctionalités numériques." Troyes, 2010. http://www.theses.fr/2010TROY0015.
Full textThe use of new technologies in safety-related systems gives rise to specific issues with respect to risk management, and it needs having probabilistic evaluation tools adapted to the in-creasing complexity of systems. The thesis works presented in this dissertation contribute to the dependability evaluation of safety-related systems, and especially for digital-based transmitters, which combine data acquisition with information processing and transmission. The aim is to extend the dependability model-ling methods in order to take at best the various interactions and dynamic behaviours of the systems into account. The first proposed model allows to represent the functional and material aspects of a safety system, the faults and failures, as well as the different relations between elements. This modelling framework is used as support to perform reliability analyses and uncertainty analyses with regard to parameters and model. A second contribution assumes the transmitters as part of control systems and aims to model the interactions between transmitters, and the interactions with the other systems’ components and the process, using a dynamic reliability framework
Simache, Cristina. "Evaluation de la sûreté de fonctionnement de systèmes Unix et Windows à partir de données opérationnelles : méthode et application." Toulouse 3, 2004. http://www.theses.fr/2004TOU30280.
Full textAcademic and industrial computing environments are mainly based on interconnected heterogeneous systems including a large number of Unix, Windows NT and Windows 2000 workstations and servers. These environments are designed to facilitate resource sharing and cooperative work between users. However, these benefits may be compromised by failures affecting the communication network, the applications or the end systems. There is no better way to understand the behavior of computing environments in the presence of faults than by direct measurement, analysis and assessment based on data obtained from the observation of their behavior in an operational environment. Our work focuses on the development and the implementation of methods allowing data collection and dependability analysis of log files automatically recorded by some operating systems. The target systems in our study are Unix, Windows NT and Windows 2000 systems interconnected in a local area network. Besides the definition and the implementation of the data collection strategy, the data processing aims to extract the relevant information and to obtain quantitative measures in order to characterize the target systems from a dependability point of view. We also showed how the measures assessed from operational data can be integrated within an analytical modeling allowing the estimation of user-perceived availability. The comparative analysis of measures characterizing the systems and those reflecting users' perceptions represents another original result of our work
Brissaud, Florent. "Contributions à la Modélisation et à l'Évaluation de la Sûreté de Fonctionnement de Systèmes de Sécurité à Fonctionnalités Numériques." Phd thesis, Université de Technologie de Troyes, 2010. http://tel.archives-ouvertes.fr/tel-00553045.
Full textBroy, Perrine. "Evaluation de la sûreté de systèmes dynamiques hybrides complexes : application aux systèmes hydrauliques." Phd thesis, Université de Technologie de Troyes, 2014. http://tel.archives-ouvertes.fr/tel-01006308.
Full textBook chapters on the topic "Sûreté et disponibilité"
COPPOLA, Marcello, and George KORNAROS. "Automatisation pour l’industrie 4.0 avec des passerelles LoRaWan sécurisées." In Systèmes multiprocesseurs sur puce 2, 71–93. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9022.ch3.
Full textConference papers on the topic "Sûreté et disponibilité"
Bartholdt, Michael, and Bernd Bertsche. "tARg€t – Détermination des objectifs de disponibilité et de fiabilité." In Congrès Lambda Mu 20 de Maîtrise des Risques et de Sûreté de Fonctionnement, 11-13 Octobre 2016, Saint Malo, France. IMdR, 2016. http://dx.doi.org/10.4267/2042/61711.
Full textCarer, Philippe, Xavier De Bossoreille, and Martin Otter. "Modelica et simulation de Monte Carlo pour l’étude de fiabilité et disponibilité d’un Data Center." In Congrès Lambda Mu 20 de Maîtrise des Risques et de Sûreté de Fonctionnement, 11-13 Octobre 2016, Saint Malo, France. IMdR, 2016. http://dx.doi.org/10.4267/2042/61801.
Full textJoliot, X., and M. Giraudeau. "Innovations dans l’évaluation de la fiabilité et de la disponibilité des radars à antennes actives." In Congrès Lambda Mu 19 de Maîtrise des Risques et Sûreté de Fonctionnement, Dijon, 21-23 Octobre 2014. IMdR, 2015. http://dx.doi.org/10.4267/2042/56167.
Full textde Reffye, J. "Application du code relsys au respect des exigences de disponibilité des lignes ferroviaires." In Congrès Lambda Mu 19 de Maîtrise des Risques et Sûreté de Fonctionnement, Dijon, 21-23 Octobre 2014. IMdR, 2015. http://dx.doi.org/10.4267/2042/56136.
Full textFolleau, Cyrille, C. Vinuesa, and S. Collas. "Méthode de calcul de la disponibilité de production des systèmes pétroliers multi-flux." In Congrès Lambda Mu 20 de Maîtrise des Risques et de Sûreté de Fonctionnement, 11-13 Octobre 2016, Saint Malo, France. IMdR, 2016. http://dx.doi.org/10.4267/2042/61816.
Full textDe Reffye, Jérôme, and Marc Antoni. "Contrôle continu de l'impédance des Joints Isolants Collés pour la disponibilité des lignes SNCF." In Congrès Lambda Mu 20 de Maîtrise des Risques et de Sûreté de Fonctionnement, 11-13 Octobre 2016, Saint Malo, France. IMdR, 2016. http://dx.doi.org/10.4267/2042/61717.
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