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Статті в журналах з теми "Alarmes de diagnostic des défauts"
Muller, F. "Diagnostic prénatal des défauts de fermeture du tube neural." Journal de Pédiatrie et de Puériculture 4, no. 8 (December 1991): 448–52. http://dx.doi.org/10.1016/s0987-7983(05)80005-2.
Повний текст джерелаLefebvre, Dimitri, and Catherine Delherm. "Diagnostic des défauts pour les SDED modélisés par réseaux de Petri." Journal Européen des Systèmes Automatisés 39, no. 5-6 (June 30, 2005): 713–38. http://dx.doi.org/10.3166/jesa.39.713-738.
Повний текст джерелаMonnet-Corti, Virginie, Arnaud Barrin, and Cyril Goubron. "Apport de la parodontologie dans l’esthétique du sourire." L'Orthodontie Française 83, no. 2 (June 2012): 131–42. http://dx.doi.org/10.1051/orthodfr/2012012.
Повний текст джерелаMesquita, Mirka. "Le mental déficient et le mental malade." psychologie clinique, no. 46 (2018): 60–70. http://dx.doi.org/10.1051/psyc/201846060.
Повний текст джерелаBachir, Smail, Slim Tnani, Jean-Claude Trigeassou, Gérard Champenois, and Jacques Saint-Michel. "Diagnostic de la machine asynchrone par identification paramétrique. Modélisation et détection des défauts stator et rotor." Revue internationale de génie électrique 5, no. 3-4 (December 30, 2002): 401–30. http://dx.doi.org/10.3166/rige.5.401-430.
Повний текст джерелаCasimir, R., E. Bouteleux, H. Yahoui, Guy Clerc, H. Heano, C. Delmotte, GA Capolino, et al. "Modélisation et diagnostic de la machine asynchrone à cage en présence de défauts. Synthèse de plusieurs méthodes." Revue internationale de génie électrique 8, no. 2 (April 30, 2005): 259–86. http://dx.doi.org/10.3166/rige.8.259-286.
Повний текст джерелаAboubou, Abdennacer, Mohammed Sahraoui, Salaheddine Zouzou, Noureddine Harid, Hubert Razik, and Abderrezak Rezzoug. "Comparaison de trois techniques dédiées au diagnostic des défauts rotoriques dans les moteurs asynchrones triphasés à cage." Revue internationale de génie électrique 8, no. 3-4 (August 30, 2005): 557–76. http://dx.doi.org/10.3166/rige.8.557-576.
Повний текст джерелаFedala, S., A. Felkaoui, R. Zegadi, and R. Ziani. "Optimisation des paramètres du vecteur formé : application au diagnostic vibratoire automatise des défauts d'une boite de vitesse d'un hélicoptère." Matériaux & Techniques 97, no. 2 (2009): 149–55. http://dx.doi.org/10.1051/mattech/2009026.
Повний текст джерелаStrub, Marion, Elie Kramer, Marie-Cécile Manière, and Delphine Wagner. "Défauts primaires d’éruption : état des lieux auprès des spécialistes en orthopédie dento-faciale des régions Grand Est et Bourgogne-Franche-Comté." L'Orthodontie Française 90, no. 2 (June 2019): 149–59. http://dx.doi.org/10.1051/orthodfr/2019013.
Повний текст джерелаPignoly, Marion, Virginie Monnet-Corti, and Michel Le Gall. "Échec de la mise en place de dents retenues et incluses." L'Orthodontie Française 87, no. 1 (March 2016): 23–38. http://dx.doi.org/10.1051/orthodfr/2016001.
Повний текст джерелаДисертації з теми "Alarmes de diagnostic des défauts"
Al-Kharaz, Mohammed. "Analyse multivariée des alarmes de diagnostic en vue de la prédiction de la qualité des produits." Electronic Thesis or Diss., Aix-Marseille, 2021. http://theses.univ-amu.fr.lama.univ-amu.fr/211207_ALKHARAZ_559anw633vgnlp70s324svilo_TH.pdf.
Повний текст джерелаThis thesis addresses the prediction of product quality and improving the performance of diagnostic alarms in a semiconductor facility. For this purpose, we exploit the alarm history collected during production. First, we propose an approach to model and estimate the degradation risk of the final product associated with each alarm triggered according to its activation behavior on all products during production. Second, using the estimated risk values for any alarm, we propose an approach to predict the final quality of the product's lot. This approach models the link between process alarm events and the final quality of product lot through machine learning techniques. We also propose a new approach based on alarm event text processing to predict the final product quality. This approach improves performance and exploits more information available in the alarm text. Finally, we propose a framework for analyzing alarm activations through performance evaluation tools and several interactive visualization techniques that are more suitable for semiconductor manufacturing. These allow us to closely monitor alarms, evaluate performance, and improve the quality of products and event data collected in history. The effectiveness of each of the above approaches is demonstrated using a real data set obtained from a semiconductor manufacturing facility
Savy, Antoine. "Diagnostic de défauts capteurs sur turboréacteur." Vandoeuvre-les-Nancy, INPL, 2003. http://www.theses.fr/2003INPL109N.
Повний текст джерелаThe engine is the most important part of an aircraft. The total loss of control imply (for a single engine aircraft) the loss of the aircraft. The engine functioning must be safe. Engine manufacturer have searched diagnostic method using analytical redundancy which allows the decrease of material redundancies by using analytical models. This thesis done in collaboration with Snecma Engines, we classified the diagnostic methods designed by this collaborator. One of this methods has been studied more in detail with test results from real engine test bench. Finally, we studied a new method based on multimodel to generate non linear residual and based on a decision part with an statistical residual analysis. This methods has been identified as acceptable because it shows good performances results in accordance with the expected performances for a diagnosis method at Snecma Engines
Jarrou, Abderrahmane. "Diagnostic de défauts et commande tolérante aux défauts des systèmes à énergie renouvelable." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0052.
Повний текст джерелаThe aim of this thesis work is to develop methodological tools for fault diagnosis and fault tolerant control for a multi-source renewable energy production system. In this context we consider an intelligent energy production-storage and consumption system, capable of reacting dynamically to its context of use and whose energy consumption is measured and controlled by monitoring systems. Based on these information flows, the energy performance of existing buildings (new and old) can be monitored, evaluated and controlled by developing methodologies and tools based on relevant factors such as user behaviour, weather forecasts, occurrence of faults, ... This thesis proposes the development of an optimal control scheme to control the climatic conditions of the building. The objective is to ensure the comfort of the occupants with the minimum energy consumption. A MPC (model predictive control) approach is first proposed in a centralized context, then declined in a distributed version for large buildings. In the presence of faults, the energy performance of buildings is degraded and a fault-tolerant control (FTC) should be implemented. The proposed FTC scheme is based on a diagnosis of the building instruments (sensor and actuator) that adapts the control laws so that the current performance remains close to the desired performance. In the thesis these approaches are developed in a linear and then bi-linear modeling framework. Simulation results show the efficiency of the proposed methods
Chabir, Karim. "Diagnostic de défauts de systèmes contrôlés via un réseau." Phd thesis, Université Henri Poincaré - Nancy I, 2011. http://tel.archives-ouvertes.fr/tel-00653836.
Повний текст джерелаSanchez, Jean. "Aide au diagnostic de défauts des transformateurs de puissance." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-01017179.
Повний текст джерелаKidar, Thameur. "Diagnostic des défauts de fissures d'engrenages par l'analyse cyclostationnaire." Thesis, Saint-Etienne, 2015. http://www.theses.fr/2015STET4007/document.
Повний текст джерелаThe gear crack is considered as the most complicated failure to diagnose because its vibration signature is not really known. In addition, the integration of crack defect in numerical models is not a simple task. On the other hand, gears diagnosis can be done in the time domain through statistical descriptors or in the frequency domain using spectral analysis or cepstral analysis. During the appearance of a crack defect, nonlinear and nonstationary phenomena occur which makes the classical tools of signal processing unreliable. In this manuscript, we respond to these challenges by developing a gear model of 6 DOF that has a crack that breathes. This allows us to study the signature of the defect in the resulting vibrations with a flexible way away from external vibrations. The results showed that the crack leads to a fall in the mesh stiffness. In addition, the opening and closing of the crack causes a fatigue in the material which generates a random term in the vibration signal. The combination of the random term with periodic component due to the rotation of the shafts leading to the appearance of second-order cyclostationary. A comparative study of sensitivity and robustness between the fast Fourier transform, second-order cyclostationary and estimators of instantaneous phase (the Hilbert transform, Estimation of Signal Parameters via Rotational Invariance Techniques with a sliding window, Weighted Least Squares Estimation and phase scalogramme) is performed for the early detection of cracks. In addition, experimental tests were carried out on a test-bench with different sizes of crack. The theoretical and experimental results showed that the cyclostationary analysis is the most sensitive and most robust method for the early detection of cracks in comparison with the other evaluated methods. Furthermore, the analysis of the instantaneous phase also gives good results in the case of crack defects. We have shown that the phase scalogramme is a priori more efficient than other approaches
Casimir, Roland. "Diagnostic des défauts des machines asynchrones par reconnaissance des formes." Phd thesis, Ecole Centrale de Lyon, 2003. http://tel.archives-ouvertes.fr/tel-00139706.
Повний текст джерелаOumri, Mohamed. "Diagnostic des défauts de réseaux électriques filaires par la réflectométrie." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112090/document.
Повний текст джерелаThis thesis focuses on fault diagnosis of wired electric networks using reflectometry. To develop diagnostic algorithms, we studied the direct problem (numerical simulations of electrical networks) and the inverse problem (determination of certain properties of a network from reflectometry measurements). For the direct problem, we developed a method for the computation of reflection coefficients. This method is based on the successive solving for a Riccati differential equation. We also generalized the BLT equation for the nonuniform electric networks and automated the resolution of this method. The thesis has made two new results concerning the inverse problem. The first result concerns the estimation of lengths and loss coefficients of the branches of a star network via an iterative method. The second focuses on the identification, at least partially, of the branches admittance matrices of a electric network modeled by the equation of BLT. The methodologies and formalisms proposed in this thesis are validated either by numerical simulations or by real measurements
Yang, Jingwen. "Diagnostic de défauts des systèmes dynamiques par optimisation non lisse." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0035/document.
Повний текст джерелаThis thesis considers the application of nonsmooth optimization approach on several FDI problems. First, to overcome the drawback of classical methods, a nonsmooth optimization approach is proposed to solve a multiobjective fault detection problem in the worst case. An additional constraint of fast transients of residual responses could be added into the design, which could be solved by nonsmooth optimization approach. A framework of designing a unique observer gain and residual weighting matrix is proposed for a system with multiple models. When the exact model is unknown, a new framework of robust fault detection filter and an unchanged threshold are proposed. Second, a method is proposed to design an integrated fault detection observer for general case (unknown l_2 bounded faults and disturbances) and specific case (some specific faults) in frequency and time domain. The lower bound envelope is used to design a fast fault detection observer for the specific faults with a guaranteed ability of fault detection in the worst. By contrast, to decrease false alarms when fault disappearing, a constraint of an upper bound envelope is added into the design. Third, a new framework of active diagnosis with auxiliary signal is proposed. A criterion of peak amplitude is proposed to evaluate the worst effects from the auxiliary signal on the system. The effects of auxiliary signal on the outputs and control signals are considered in the design. The design is firstly shown with a case of two models, which is then extended to multiple models case
Alachkar, Bassem. "Diagnostic vibro-acoustique des défauts de fabrication des machines électriques." Paris 11, 1995. http://www.theses.fr/1995PA112190.
Повний текст джерелаКниги з теми "Alarmes de diagnostic des défauts"
1949-, Patton Ron, Clark Robert 1925-, and Frank Paul M, eds. Issues of fault diagnosis for dynamic systems. London: Springer, 2000.
Знайти повний текст джерела(Editor), Ron J. Patton, Paul M. Frank (Editor), and Robert N. Clark (Editor), eds. Issues of Fault Diagnosis for Dynamic Systems. Springer, 2000.
Знайти повний текст джерелаFrank, Paul M., Robert N. Clark, and Ron J. Patton. Issues of Fault Diagnosis for Dynamic Systems. Springer London, 2010.
Знайти повний текст джерела