Dissertations / Theses on the topic 'Méthodes de test'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Méthodes de test.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Baschiera, Daniel. "Modélisation de pannes et méthodes de test de circuits intégrés CMOS." Phd thesis, Grenoble INPG, 1986. http://tel.archives-ouvertes.fr/tel-00320020.
Full textFagot, Christophe. "Méthodes et algorithmes pour le test intégré de circuits VLSI combinatoires." Montpellier 2, 2000. http://www.theses.fr/2000MON20003.
Full textHariri, Yassine. "Étude de faisabilité d'une méthodologie de test exploitant le test par le courant IDDQ, et l'intéraction d'autres méthodes de test de diagnostic." Mémoire, École de technologie supérieure, 2008. http://espace.etsmtl.ca/113/1/HARIRI_Yassine.pdf.
Full textLeroux, (zinovieva) Elena. "Méthodes symboliques pour la génération de tests desystèmes réactifs comportant des données." Phd thesis, Université Rennes 1, 2004. http://tel.archives-ouvertes.fr/tel-00142441.
Full textde transitions ne permet pas de le faire. Ceci oblige à énumérer les valeurs des données avant de construire le modèle de système de transitions d'un système, ce qui peut provoquer le problème de l'explosion de l'espace d'états. Cette énumération a également pour effet d'obtenir des cas de test où toutes les données sont instanciées. Or, cela contredit la pratique industrielle où les cas de test sont de vrais programmes avec des variables et des paramètres. La génération de tels
cas de test exige de nouveaux modèles et techniques. Dans cette thèse, nous atteignons deux objectifs. D'une part, nous introduisons un modèle appelé système symbolique de transitions à entrée/sortie qui inclut explicitement toutes les données d'un système réactif. D'autre part, nous proposons et implémentons une nouvelle technique de génération de test qui traite symboliquement les données d'un système en combinant l'approche de génération de test proposée auparavant par notre groupe de recherche avec des techniques d'interprétation abstraite. Les cas de test générés automatiquement par notre technique satisfont des propriétés de correction: ils émettent toujours un verdict correct.
Qin, Yilong. "SPICE benchmark pour méthodes tomographiques globaux et test des modèles tomographiques globaux." Paris, Institut de physique du globe, 2007. http://www.theses.fr/2007GLOB0016.
Full textOver the last two decades, a lot of global-scale or regional-scale seismic models of the Earth's interiors have been constructed from different types of seismological measurements (body-wave traveltime, surface-wave phase velocity or full waveforms) and with different theoretical assumptions of seismic wave propagation (ray theory, Born approximation or wave equation) and with different inversion techniques (iterative least-square inversion, Monte-Carlo or Neighborhood algorithm) and different parameterizations (spherical harmonics up to a variable degree or blocks or adaptive triangles). Generally these different tomographic methods generate different tomographic models. To calibrate these different tomographic methods and test these different tomographic models, we decided to perform a global-scale benchmark for seismic tomography and test different global-scale tomographic models. So this thesis is divided into two parts
Legrand, Claire. "Méthodes d'étude de la tolérance oculaire "in vivo" et "in vitro"." Paris 5, 1992. http://www.theses.fr/1992PA05P079.
Full textSicard, Pascal. "Nouvelles méthodes de synthèse logique." Phd thesis, Grenoble INPG, 1988. http://tel.archives-ouvertes.fr/tel-00327269.
Full textZinovieva-Leroux, Eléna. "Méthodes symboliques pour la génération de tests de systèmes réactifs comportant des données." Rennes 1, 2004. https://tel.archives-ouvertes.fr/tel-00142441.
Full textFromont, Magalie. "Quelques problèmes de sélection de modèles : construction de tests adaptatifs, ajustement de pénalités par des méthodes de bootstrap." Paris 11, 2003. http://www.theses.fr/2003PA112276.
Full textThe nonasymptotic approach to model selection by penalization for adaptive estimation, as initially proposed by Birgé and Massart, has been adapted to numerous statistical problems. This thesis, which is devoted to the construction of adaptive tests and classification rules in nonparametric frameworks, further developes this line of research. In the first section, we consider a density model, where the density s is assumed to belong to L2(R). We propose some goodness-of-fit tests of hypotheses such as "s equals some given density" or "s belongs to some translation/scale family". We describe classes of alternatives over which these tests have a prescribed power. Then we prove that they are adaptive in the minimax sense (up to a possible logarithmic factor) over Hölder classes or Besov balls. The second section, motivated by an application to laser vibrometry, deals with the problem of periodic signal detection in a Gaussian fixed design regression model. After studying the minimax separation rates over some periodic Sobolev balls when the variance is known, we present a testing procedure available when the variance and the period are unknown, and adaptive (up to a logarithmic factor) over the considered Sobolev balls. In the third section, we consider the binary classification framework. We build new classification rules by minimizing the sum of the empirical classification error and a penalty term based on bootstrap samples of the observations. The obtained rules satisfy "oracle" type inequalities and achieve the global minimax risk over Vapnik-Chervonenkis classes. The methods developed in this thesis are inspired by the empirical processes theory. Each theoretical result is furthermore illustrated by an experimental study
Beurton, Alexandra. "Prédiction de la réponse à l’expansion volémique : Nouvelles limites, nouvelles méthodes." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS468/document.
Full textVolume expansion is the first-line treatment of acute circulatory failure in almost all cases. However, its inconsistent effectiveness and side effects encourage to predict its effects before undertaking it. Several tests have been developed to detect preload responsiveness and we have sought to improve some of them and describe their limits.The passive leg raising (PLR) test is based on the transfer of some venous blood from the venous compartment of the splanchnic compartment and the lower limbs toward the thorax. We have shown that, in case of intra-abdominal hypertension, the diagnostic value of the test was lower, with many cases false negatives cases. This limitation of the PLR test is of importance because of the prevalence of intra-abdominal hypertension in critically ill patients.The effects of this test should be evaluated on cardiac output, and several methods have already been described for this evaluation. First, we have shown that measuring the effects of the test on carotid and femoral arterial flows was unreliable, with a very poor correlation between changes in cardiac output and those in these two arterial flows. Second, we have described an original and reliable method for measuring the effects of the test, which consists in measuring the perfusion index (PI), the ratio between the pulsatile and non-pulsatile portions of the pulse oximetry signal. Although a stable signal could not be obtained in all patients, changes in this index during PLR allowed the measurement of its effects and the detection of preload responsiveness. These results open up the possibility of measuring the effects of the test with a non-invasive tool that can be used in all patients in the intensive care unit and the operating room.Finally, we applied the PI measurement to another test of preload responsiveness, the end-expiratory occlusion test. It consists in interrupting mechanical ventilation for a few seconds and observing simultaneous changes in cardiac output. Although the changes are smaller than those induced by PLR, these changes were well tracked by PI changes and reliably detected preload dependence
Rigaud, Fabrice. "Etude et conception des structures de test et méthodes d'analyse pour les technologies CMOS." Aix-Marseille 1, 2010. http://www.theses.fr/2010AIX1A083.
Full textBecause of the constant transistors size reduction, it becomes more and more difficult to obtain good yields. The aim of this work is to propose tools to speed up the yield ramp up of CMOS technologies. These tools consist of test circuit design, combined with test and analysis methods. Three kinds of test structure are analyzed in this work: logic TEG, a test macro-cell and a hybrid TEG. The analyzed logic TEG are compound of inverter chains and allow to detect defects and process variations. Defects can also be localized in order to ease their analysis. The test macro-ceIl studied contains an "oscillating" SRAM memory array which is able to oscillate. The SRAM mode allows detecting and localizing of defects present on the memory array. In comparison with logic TEG, the probability to catch defects is more important thanks to the structure size. The oscillating mode allows, thanks to different interconnection configurations of memory cells, to characterize process variations. The last proposed structure is a hybrid TEG which consists of several ring oscillators with different layout configurations. A numeric bloc is also embedded, allowing to measure oscillating frequencies up to 1. 5GHz and to restitute them on a numeric output. An analysis method is then developed in order to retrieve values of parameters previously chosen as a function of oscilIating frequencies. Ln a fust time, the method is validated by simulation. Then, some wafers with the TEG embedded on are tested. The test shows tbat the learning performed by simulation has to be executed on silicon to obtain expected results
Rekik, Ahmed. "Méthodes alternatives pour le test et la calibration de MEMS : application à un accéléromètre convectif." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20091/document.
Full textMEMS test and calibration are challenging issues due to the multi-domain nature of MEMS devices. They therefore require the application of physical stimuli, using expensive test equipments, to test and to calibrate their specifications. The main objective of this thesis is to develop alternative electrical-only test and calibration procedures for MEMS convective accelerometers.First, a behavioral model that includes the influence of sensor geometrical parameters on sensitivity is developed and validated with respect to FEM simulations. Second, the model is used to perform fault simulations and to identify correlation that may exist between device sensitivity to acceleration and some electrical parameters. Third, this correlation is exploited to develop alternative test and calibration methods where the sensitivity is estimated using only electrical measurements and without applying any physical stimulus (acceleration). The efficiency of these methods is demonstrated. Finally, two architectures that allow on-chip test and calibration are proposed
Le, Roy Pascale. "Méthodes de détection de gènes majeurs : application aux animaux domestiques." Paris 11, 1989. http://www.theses.fr/1989PA112146.
Full textStatistical tests have been proposed for identification of major genes from data collected in non-experimental populations, in particular in human populations. These methods are compared on their statistical properties (power, level, robustness) and their speed (computation time). Adaptations are proposed for livestock studies. The comparisons are realised using large scale simulations of the test statistics distributions under different hypotheses concerning existence and characteristics of the major gene. The methods are classified in three groups: fast methods used as indicators of major gene segregation, segregation analysis, and analysis of complex pedigrees. All these tests are applied to different data sets concerning two male composite lines of pigs and an experimental flock of goats. The results show segregation of major genes on technological pork quality and lean percentage of pigs, as well as on milk flow of goats
Pienkowski, Catherine. "Etude des diffèrentes méthodes d'exploration somatotrope dans 257 cas de retard statural : tests pharmacologiques, sécrétion nycthémérale, test GHRH, somatomédine C." Toulouse 3, 1988. http://www.theses.fr/1988TOU31260.
Full textLauer, Peccoud Marie-Reine. "Méthodes statistiques pour le controle de qualité en présence d'erreurs de mesure." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997NICE5136.
Full textBa, Papa-Sidy. "Détection et prévention de Cheval de Troie Matériel (CTM) par des méthodes Orientées Test Logique." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT271/document.
Full textIn order to reduce the production costs of integrated circuits (ICs), outsourcing the fabrication process has become a major trend in the Integrated Circuits (ICs) industry. As an inevitable unwanted side effect, this outsourcing business model increases threats to hardware products. This process raises the issue of un-trusted foundries in which, circuit descriptions can be manipulated with the aim to possibly insert malicious circuitry or alterations, referred to as Hardware Trojan Horses (HTHs). This motivates semiconductor industries and researchers to study and investigate solutions for detecting during testing and prevent during fabrication, HTH insertion.However, considering the stealthy nature of HTs, it is quite impossible to detect them with conventional testing or even with random patterns. This motivates us to make some contributions in this thesis by proposing solutions to detect and prevent HTH after fabrication (during testing).The proposed methods help to detect HTH as well during testing as during normal mode(run-time), and they are logic testing based.Furthermore, we propose prevention methods, which are also logic testing based, in order tomake harder or quasi impossible the insertion of HTH both in netlist and layout levels
Desmoulin, Alexandra. "Test d'interopérabilité de protocoles : de la formalisation des critères d'interopérabilité à la génération des test." Rennes 1, 2007. ftp://ftp.irisa.fr/techreports/theses/2007/desmoulin.pdf.
Full textThis thesis deals with the domain of protocol interoperability testing. The objective is to verify that different network components are able to communicate correctly while providing the service described in their respective specification. We propose a formal definition of the interoperability notion using interoperability criteria that precise conditions to be verified by components to be considered interoperable. We propose an automatic test generation method for the most used context of two components interoperability testing. This method avoids the state space explosion problem that interoperability test generation generally faces. A specific problem of the interoperability testing domain is the verification of the actual reception of a message that was sent to a component. We propose a solution based on causal dependencies between messages. For the interoperability of multiple components (more than two), we propose a classification of the possible testing architectures, definitions of interoperability criteria, a methodology for the choice of interconnection topologies to be used and some elements for the test derivation
Guyot, Nathalie. "Étude numérique du test d'indentation de Brinell couplage des méthodes d'éléments finis et d'éléments frontières." Vandoeuvre-les-Nancy, INPL, 1998. http://www.theses.fr/1998INPL044N.
Full textGarstecki, Lukasz. "Méthodes efficaces de test de conformité fonctionelle pour les bibliothèques de programmation parallèle et distribuée." Grenoble INPG, 2004. http://www.theses.fr/2004INPG0068.
Full textThe thesis presents a complete methodology for creating Conformance Test Suites for programming languages, libraries and APIs, with a special attention to parallel and distributed programming libraries. Author has started his research in the field of conformance testing for parallel and distributed programming libraries, but methodology Consecutive Confinements Method (CoCoM), invented by Author, turned out to be general enough to be applied to a wider class of programming libraries, languages and APIs, including both sequential and non-sequential programming models based on imperative programming paradigm. Methodology CoCoM is based on notions defined in the international standard ISO/IEC 13210: Information Technology , - Requirements and Guidelines for Test Methods Specifications and Test Method Implementations for Measuring Conformance to POSIX Standards, and attempts to extend it. CoCoM can be seen as a framework, where many different methodologies and tools can be incorporated, allowing for expansion towards any specific formalism, for which a supporting processing engine can be found. For the purpose of the Thesis Author has developed a prototype tool called CTS Designer, which implements significant parts of the standard ISO/IEC 13210 and the CoCoM methodology and shall be considered a top integrating component of a dedicated formal framework postulated before
Prigent, Armelle. "Le test des systèmes temps-réel paramétrés : application à la conception d'architectures avioniques." Nantes, 2003. http://www.theses.fr/2003NANT2097.
Full textVoon, Lew Yan, and Lew Fock Chong. "Contribution au test intégré déterministe : structures de génération de vecteurs de test." Montpellier 2, 1992. http://www.theses.fr/1992MON20035.
Full textSellami, Fayçal. "Méthodes d'étude des régimes perturbés dans les systèmes électroniques de puissance : conception de procédure de test." Toulouse, INPT, 1986. http://www.theses.fr/1986INPT031H.
Full textGentil, Marie-Hélène. "Conception et réalisation d'un planificateur de test hiérarchisé pour circuits logiques complexes." Montpellier 2, 1994. http://www.theses.fr/1994MON20035.
Full textDoche, Marielle. "Techniques formelles pour l'évaluation de systèmes critiques complexes : test et modularité." École nationale supérieure de l'aéronautique et de l'espace (Toulouse ; 1972-2007), 1999. http://www.theses.fr/1999ESAE0024.
Full textRodriguez, Béatrice. "Contribution au test des pannes temporelles : diagnostic et génération de vecteurs de test orientée diagnostic." Montpellier 2, 1996. http://www.theses.fr/1996MON20111.
Full textElleuch, Ahmed. "Contribution au test des circuits intégrés : extraction automatique de liste de fautes." Montpellier 2, 1989. http://www.theses.fr/1989MON20047.
Full textExantus, Judith. "Comparaison des propriétés métriques des scores obtenus avec un test de concordance de script au regard de trois méthodes de détermination des scores." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40447.
Full textAzam, Philippe. "Développement de méthodes alternatives à l'expérimentation animale pour la détection du potentiel de sensibilisation de contact." Montpellier 1, 2004. http://www.theses.fr/2004MON13515.
Full textNemouchi, Yakoub. "Model-based Testing of Operating System-Level Security Mechanisms." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS061/document.
Full textFormal methods can be understood as the art of applying mathematical reasoningto the modeling, analysis and verification of computer systems. Three mainverification approaches can be distinguished: verification based on deductive proofs,model checking and model-based testing.Model-based testing, in particular in its radical form of theorem proving-based testingcite{brucker.ea:2012},bridges seamlessly the gap between the theory, the formal model, and the implementationof a system. Actually,theorem proving based testing techniques offer a possibility to directly interactwith "real" systems: via differentformal properties, tests can be derived and executed on the system under test.Suitably supported, the entire process can fully automated.The purpose of this thesis is to create a model-based sequence testing environmentfor both sequential and concurrent programs. First a generic testing theory basedon monads is presented, which is independent of any concrete program or computersystem. It turns out that it is still expressive enough to cover all common systembehaviours and testing concepts. In particular, we consider here: sequential executions,concurrent executions, synchronised executions, executions with abort.On the conceptual side, it brings notions like test refinements,abstract test cases, concrete test cases,test oracles, test scenarios, test data, test drivers, conformance relations andcoverage criteria into one theoretical and practical framework.In this framework, both behavioural refinement rules and symbolic executionrules are developed for the generic case and then refined and used for specificcomplex systems. As an application, we will instantiate our framework by an existingsequential model of a microprocessor called VAMP developed during the Verisoft-Project.For the concurrent case, we will use our framework to model and test the IPC API of areal industrial operating system called PikeOS.Our framework is implemented in Isabelle/HOL. Thus, our approach directly benefitsfrom the existing models, tools, and formal proofs in this system
Hammi, Tarik. "Étude de méthodes de mesures et réalisation d'un banc de test pour l'évaluation des propriétés électrostatiques des textiles." Lille 1, 2005. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2005/50376-2005-Hammi.pdf.
Full textCourchesne, Marie-Pierre. "Test du cadran de l'horloge : analyse de deux méthodes de cotation servant à discriminer les déficits cognitifs légers." Thèse, Université du Québec à Trois-Rivières, 2003. http://depot-e.uqtr.ca/4526/1/000105205.pdf.
Full textGraffeo, Nathalie. "Méthodes d'analyse de la survie nette : utilisation des tables de mortalité, test de comparaison et détection d'agrégats spatiaux." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM5067/document.
Full textIn cancer research, net survival is a key indicator of health care efficiency. This theoretical concept is the survival that would be observed in an hypothetical world where the disease under study would be the only possible cause of death. In population-based studies, where cause of death is unknown, net survival allows to compare net cancer survival between different groups by removing the effect of death from causes other than cancer. In this work, after presenting the concept and the estimation methods of net survival, we focus on three complementary issues. The first one is about the life tables used in the estimates of net survival. In France, these tables are stratified by age, sex, year and département. Other prognostic factors impact on mortality. So it would be interesting to use life tables stratified by some of these factors. We study the impact of the lack of stratification in life tables on the estimates of the effects of prognostic factors on excess mortality by simulations and real data studies. In 2012, the Pohar-Perme estimator was proposed. It is a consistent non parametric estimator of net survival. The second issue involves the building of a log-rank type test to compare distributions of net survival (estimated by the Pohar-Perme estimator) between several groups. Our third issue is to propose a method providing potential spatial clusters which could contain patients with similar net cancer survival rates. We adapt a clustering method using the test we have built as a splitting criterion. This work proposes new developments and new tools to study and improve the quality of care for cancer patients. These methods are suitable to other chronic diseases
L'Moudden, Ahmed. "Test d'indépendance et d'ajustement basé sur le processus de Kendall calcul des valeurs critiques par deux méthodes numériques." Thèse, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/5065.
Full textSall, Alioune. "Un test pour la bonne spécification d'un modèle structurel marginal." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/32526.
Full textEstimating the effect of a time-varying exposure using ordinary regression models may lead to bias if time-varying confounding variables are an effect of past exposures. Marginal structural models (MSMs) are a solution to this problem that is increasingly used, especially in health studies. One of the main assumptions of MSMs is that the relationship between outcome and past exposures is well specified. Thus, we developed a statistical test of this hypothesis. Different weights can be used to estimate MSM parameters and these should produce similar estimates when the model is correctly specified. A statistical test verifying if the differences observed are beyond those expected makes it possible to test that the model is correct. The performance of the test is investigated using a synthetic data simulation study, where different true relationships between exposures and outcome, as well as different sample sizes were considered. The simulation study demonstrates good test performance: rejection rates for correct models are low, while rejection rates for incorrect models are generally high, especially for large sample sizes. However, there are situations where the test is unable to detect specification errors. The test is applied to study the effect of repeated psychosocial work stressor exposure over a 5-year period on ambulatory blood pressure in a cohort of 1576 white-collar workers.
Guedj, Mickael. "Méthodes Statistiques pour l'Analyse de Données Génétiques d'Association à Grande Echelle." Phd thesis, Université d'Evry-Val d'Essonne, 2007. http://tel.archives-ouvertes.fr/tel-00169411.
Full textAprès une description introductive des principales problématiques liées aux études d'association à grande échelle, nous abordons plus particulièrement les approches simple-marqueur avec une étude de puissance des principaux tests d'association, ainsi que de leur combinaisons. Nous considérons ensuite l'utilisation d'approches multi-marqueurs avec le développement d'une méthode d'analyse fondée à partir de la statistique du Score Local. Celle-ci permet d'identifier des associations statistiques à partir de régions génomiques complètes, et non plus des marqueurs pris individuellement. Il s'agit d'une méthode simple, rapide et flexible pour laquelle nous évaluons les performances sur des données d'association à grande échelle simulées et réelles. Enfin ce travail traite également du problème du test-multiple, lié aux nombre de tests à réaliser lors de l'analyse de données génétiques ou génomiques haut-débit. La méthode que nous proposons à partir du Score Local prend en compte ce problème. Nous évoquons par ailleurs l'estimation du Local False Discovery Rate à travers un simple modèle de mélange gaussien.
L'ensemble des méthodes décrites dans ce manuscrit ont été implémentées à travers trois logiciels disponibles sur le site du laboratoire Statistique et Génome : fueatest, LHiSA et kerfdr.
Mazuet, Christine. "Stratégies de test pour des programmes synchrones : application au langage LUSTRE." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT112H.
Full textDiack, Cheikh Ahmed Tidiane. "Test de convexité pour une fonction de régression." Toulouse 3, 1997. http://www.theses.fr/1997TOU30165.
Full textSalomond, Jean-Bernard. "Propriétés fréquentistes des méthodes Bayésiennes semi-paramétriques et non paramétriques." Thesis, Paris 9, 2014. http://www.theses.fr/2014PA090034/document.
Full textResearch on Bayesian nonparametric methods has received a growing interest for the past twenty years, especially since the development of powerful simulation algorithms which makes the implementation of complex Bayesian methods possible. From that point it is necessary to understand from a theoretical point of view the behaviour of Bayesian nonparametric methods. This thesis presents various contributions to the study of frequentist properties of Bayesian nonparametric procedures. Although studying these methods from an asymptotic angle may seems restrictive, it allows to grasp the operation of the Bayesian machinery in extremely complex models. Furthermore, this approach is particularly useful to detect the characteristics of the prior that are strongly influential in the inference. Many general results have been proposed in the literature in this setting, however the more complex and realistic the models the further they get from the usual assumptions. Thus many models that are of great interest in practice are not covered by the general theory. If the study of a model that does not fall under the general theory has an interest on its owns, it also allows for a better understanding of the behaviour of Bayesian nonparametric methods in a general setting
Michel, Thierry. "Test en ligne des systèmes à base de microprocesseur." Phd thesis, Grenoble INPG, 1993. http://tel.archives-ouvertes.fr/tel-00343488.
Full textSulis, Sophia. "Méthodes statistiques utilisant des simulations hydrodynamiques d'atmosphères stellaires pour détecter des exoplanètes en vitesse radiale." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4073/document.
Full textConsidering a time series affected by a colored noise of unknown statistics, a difficulty for periodic signal detection is to control the true significance level at which the detection tests are conducted. The objective of this thesis is to develop a new method using training datasets of the noise to improve this control. For the case of regularly sampled observations, we analyze the performances of various detectors applied to periodograms standardized using the noise training datasets. The proposed standardization leads, in some cases, to powerful constant false alarm rate tests. Thanks to the development of the asymptotical distribution of the standardized periodogram, we derive analytical expressions for the false alarm and detection rates of several tests. In the case of irregular sampling, we show that it is possible to combine the proposed periodogram standardization and bootstrap techniques to consistently estimate the false alarm rate. We also show that the procedure can be improved by using generalized extreme value distributions. This study has been applied to the case of extrasolar planet detection in radial velocity (RV) data. The main barrier to detect Earth-mass planets comes from the host star activity, as the convection at the stellar surface. This work investigates the possibility of using hydrodynamic simulations of the stellar convection in the detection process to control exoplanet detection claims
Criqui, Françoise. "L'asthme aux isocyanates, valeur des méthodes diagnostiques : tests de provocation bronchique spécifiques et mise en évidence d'IgE spécifiques : à propos de 75 cas." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR1M030.
Full textRouillard, Davy. "Application de techniques de preuve assistée pour la spécification, la vérification et le test." Bordeaux 1, 2002. http://www.theses.fr/2002BOR12573.
Full textBurgueño, Arjona Augusto. "Vérification et synthèse de systèmes temporisés par des méthodes d'observation et d'analyse paramétrique." Toulouse, ENSAE, 1998. http://www.theses.fr/1998ESAE0012.
Full textBulone, Joseph. "Généralisation des méthodes de scan pour le test des circuits intégrés complexes et application à des circuits critiques en vitesse." Phd thesis, Grenoble INPG, 1994. http://tel.archives-ouvertes.fr/tel-00344980.
Full textDelétage, Jean-Yves. "Etude de la durée de vie d'assemblages microélectroniques par l'utilisation de simulations, de modèles de dégradation et de circuits intégrés spécifiques de test." Bordeaux 1, 2003. http://www.theses.fr/2003BOR12796.
Full textThis work is in the field of reliability estimation of microelectronics assemblies. We study their thermomechanical behaviour with simple analytical and comparative method but also with FEM simulations. These tools are used from the design step to evaluate the criticality of the assemblies considering solder joint failures. We evaluate the lifetime of assemblies using an experimental test and a degradation law model of the alloy of the solder joint. This model consists of an analytical expression deduced from experimental results and of a FEM simulation. The effect of the deviation of technological parameters on the lifetime distribution is studied from this model. Finally, the design and the use of full custom integrated circuits dedicated to measure, in situ, stress induced by the moulding compound, is described
Chebana, Fateh. "Estimation et tests par des méthodes fonctionnelles : applications aux M-estimateurs et aux tests de Bickel-Rosenblatt." Paris 6, 2003. http://www.theses.fr/2003PA066517.
Full textDerème, Tristan. "Test en tension des courts-circuits en technologie CMOS." Montpellier 2, 1995. http://www.theses.fr/1995MON20032.
Full textJabbour, Jacques. "Méthodes d’essais de vieillissement accéléré des bétons à l’échelle des ouvrages." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLN038.
Full textThis thesis is part of a research program on the aging of nuclear infrastructures launched by the IRSN (Institute for Radiological Protection and Nuclear Safety) within the project aiming to extend the lifespan of the French nuclear power plants. The goal is to contribute to the knowledge of aging mechanisms touching the constituents of non-replaceable structures of a nuclear power plant, such as the containment building. Matter of fact, the behavior of such structures is an important point for the safety assessment of nuclear installations because they represent the third and last barrier against the dispersion of radioactive particles in the environment. Among the phenomena involved in aging mechanisms, internal swellings reactions (ISR) are pathologies that can degrade concrete by causing swelling, cracking and major disorders in the affected structures. Internal swelling reactions (ISW) include the delayed ettringite formation (DEF), the alkali-aggregate reaction (AAR) and the concomitance of the two. These pathologies are endogenous reactions, occurring as a result of the interaction between the initial components of the material. These interactions take place following the use of reactive aggregates in case of AAR and/or following a significant warm-up at the concrete’s early age in case of DEF. In nuclear facilities, the possibility of these phenomena cannot be ruled out. Matter of fact, they include massive reinforced concrete elements for which a significant heating could have occurred at the early age. Moreover, reactive aggregates may have been used during the construction phase. Therefore those risks ought to be studied especially if the extension of the lifespan of these installations is envisaged.However, the kinetics of these reactions are generally slow and it can take for up to a few decades for disorders to appear in the structure. Among the solutions used in research laboratories, one is to use accelerated test methods developed on small specimens.The research work carried out in this context includes three major axis: the development of an experimental protocol to accelerate internal swelling reactions of concrete on a massive structure scale, multi-scale analysis of the phenomena involved and the development of innovative instrumentation adapted to this problem. The purpose is to allow better observation and understanding of swelling reactions at such scale. Hence, three representative massive concrete mock-ups whose dimensions are 2,4 x 1,4 x 1 m3 were realized under controlled and optimized conditions for the development of delayed ettringite formation (DEF), alkali silica reaction (ASR) and the concomitant ASR-DEF case respectively.The scale effect on swelling kinetics is demonstrated by an experimental study comparing the evolution of swelling reaction in the massive samples with the evolution in reconstituted concrete laboratory specimens as well as coring specimens.An innovative instrumentation method using optical fibers is also developed thus allowing the monitoring of the pathologies in the massive structures and the tracking of the respective deformation fields in several two-dimensional plans of interest. The measurements are to finely describe and help in understanding the evolutionary mechanisms of structural degradation and can be used subsequently as a reference for numerical simulations
N'Cho, Janvier Sylvestre. "Développement de nouvelles méthodes de diagnostic et de régénération des huiles pour transformateurs de puissance." Thesis, Ecully, Ecole centrale de Lyon, 2011. http://www.theses.fr/2011ECDL0004/document.
Full textA power transformer outage has a dramatic financial consequence not only for electric power systems utilities but also for interconnected customers. In order to prevent any failure and to optimize their maintenance, various diagnostic techniques and tools have been developed. Insulating oil contains about 70% of diagnostic information on the transformer condition. The challenge is to access and use them efficiently. To meet this objective reliable diagnostic techniques are required. In addition to traditional testing methods, three recently developed ASTM testing techniques were used: (1) oil stability testing that simulates the behaviour of oil under electrical stress by providing information on its quality; (2) the UV/Visspectrophotometry that measures the amount of the relative dissolved decay products in insulating oil; and (3) the turbidity that measures the purity of virgin and aged oil. A quantitative laboratory technique capable of determining the parameters affecting the formation of corrosive sulphur deposition on copper conductors in power transformer is proposed. It is shown among other that the gassing tendency of natural esters is lower than that of the other types of insulating fluids (mineral oil, synthetics esters and silicone oil). The turbidity and UV/Vis spectrophotometry allow quantifying effectively, the relative amount of contaminants resulting from electrical discharge in oils. A large number of reclamation cycles (around 15 passes) are required for in-service aged oil to regenerate to the level of new oil. Anew technique enabling reducing the number of reclamation cycles is proposed; this latter consists in the use of Fuller’s Earth previously treated with dry nitrogen. It is also shown that time is the most influential parameter in the formation of corrosive sulfur. The process is accelerated when time and aggressiveness of oxygen are partnered
Gasser, Jean-Luc. "Analyse de signature des circuits intégrés complexes par test aléatoire utilisant les méthodes de traitement du signal : application à un microprocesseur." Toulouse, INPT, 1986. http://www.theses.fr/1986INPT079H.
Full text