Literatura científica selecionada sobre o tema "Émulateurs"
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Artigos de revistas sobre o assunto "Émulateurs"
Borghi, Bruno. "Les fiches cuisine d’Onc PostScript : 2. Un émulateur de table traçante". Cahiers GUTenberg, n.º 3 (1989): 66–68. http://dx.doi.org/10.5802/cg.38.
Texto completo da fonte-SAUDEMONT, Christophe. "Développement d'un émulateur temps réel d'un système de génération éolienne associé à un stockage inertiel d'énergie". Revue de l'Electricité et de l'Electronique -, n.º 10 (2004): 49. http://dx.doi.org/10.3845/ree.2004.102.
Texto completo da fonteNoel Kaze, Beaudelaire. "L’ECONOMIE FUNEBRE ET FUNERAIRE EN PAYS BAMILEKE (OUEST CAMEROUN): FACTEUR DE NOUVELLES DYNAMIQUES SOCIALES". EPH - International Journal of Humanities and Social Science 6, n.º 4 (5 de outubro de 2020). http://dx.doi.org/10.53555/eijhss.v6i4.106.
Texto completo da fonteSharma, Pankaj Kumar, Sadaf Tasneem e Rajeev Kumar Ranjan. "A New Electronic Tunable High-Frequency Meminductor Emulator Based on a Single VDTA Un nouvel émulateur de meminducteur électronique accordable à haute fréquence basé sur un seul VDTA". IEEE Canadian Journal of Electrical and Computer Engineering, 2023, 1–6. http://dx.doi.org/10.1109/icjece.2023.3261886.
Texto completo da fonteTeses / dissertações sobre o assunto "Émulateurs"
Bahri, Nesrine. "Une commande neuronale adaptative basée sur des émulateurs neuronal et multimodèle pour les systèmes non linéaires MIMO et SIMO". Thesis, Le Havre, 2015. http://www.theses.fr/2015LEHA0024/document.
Texto completo da fonteThe porosity of a composite plate in carbon / epoxy of type RTM is known by used of tomography X. A method of determination of this porosity by measure of the mitigation of the longitudinal waves through the thickness of this kind of plate is proposed. These measures are made on surfaces of different sizes (from some cm2 to some mm2) and allow the obtaining of cartographies. A correspondence porosity (tomo X) - Mitigation (US wave) is deducted and analyzed according to the structure of the composite material. In every case, we estimate the quality of the obtained relations and we deduct the limits of validity of the correspondence between porosity and mitigation. First results of acoustic tomography are obtained
Benchaib, Yacine. "Virtualisation de réseaux fixes et mobiles". Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066653.
Texto completo da fonteA significant number of experimental tools now allow the study of problems for fixed and mobile multi -hop networks. Based on a state of the art reporting different features and characteristics specific to different testing methods, this thesis aims to provide some assessment of these innovative experiments tools. Concerning the study of fixed networks , we propose and evaluate VIRCONEL , a tool for the definition of virtual network topologies as well as the realization of scenario under realistic conditions. For the study of mobile multi-hop networks , we first propose SILUMOD , a language that allows using specific keywords and operators to easily define characteristics of the movement of a mobile node. We then propose VIRMANEL , a tool for managing connections between mobile nodes represented by virtual machines, using an algorithm optimizing the update of effective links between mobile nodes. By combining SILUMOD and VIRMANEL , we obtain a tool to simulate the movement of a mobile node while evaluating and establishing potential connections between mobile nodes. Evaluations of these tools show that if virtualization is indeed a relevant and useful tool for network experiments , it also has its limitations and the realism of results depends on experimental conditions. We discuss this problem and propose at the end of this thesis , some criteria for assessing the degree of trust to give a result
Roux, Antoine. "Emulation of PGCM calculations using the Eigenvector continuation method". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP114.
Texto completo da fonteAn atomic nucleus is a quantum system of interacting nucleons and constitutes a problem difficult to solve exactly. For this reason, a diversity of approximate resolution methods has been designed, and Projected Generator Coordinate Method (PGCM) is one of them. The strong point of PGCM is to construct a physically inspired small dimensional space, in which an approximate solution of the nuclear many-body problem is easily found. However the numerical cost of PGCM space computation make this method inadapted for sensibility analysis of nuclear observables with restect to parametrisation of the interaction model, this analysis requiring an huge number of PGCM computations. In order to make this type of study possible, this thesis explore the concept of PGCM emulator. In this work, a combination of PGCM with Eigenvector Continuation (EC) is constructed and studied. This combination (the PGCM-EC emulator) takes advantage of mathematical similarities between PGCM and EC, and above all of the decomposition of the hamiltonian as a linear combination of parameter-independent terms. The latter property is used to concentrate the heavier numerical cost in the computation of parameter-independent quantities (the elementary kernels), and open the feasability of massive PGCM emulations, the price being having first-handedly computed the costly elementary kernels. Limits of the emulator are also explored, by introducing the concept of over-training, which is exactly a consequence of the aproximativeness of a PGCM computation. Eventually this thesis demonstrates the possibility to emulate millions of PGCM computations with an error on collective spectroscopy less than 3%, and with a low numerical cost fraction of 1% of the million PGCM calculations cost
Benchaib, Yacine. "Virtualisation de réseaux fixes et mobiles". Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066653.
Texto completo da fonteA significant number of experimental tools now allow the study of problems for fixed and mobile multi -hop networks. Based on a state of the art reporting different features and characteristics specific to different testing methods, this thesis aims to provide some assessment of these innovative experiments tools. Concerning the study of fixed networks , we propose and evaluate VIRCONEL , a tool for the definition of virtual network topologies as well as the realization of scenario under realistic conditions. For the study of mobile multi-hop networks , we first propose SILUMOD , a language that allows using specific keywords and operators to easily define characteristics of the movement of a mobile node. We then propose VIRMANEL , a tool for managing connections between mobile nodes represented by virtual machines, using an algorithm optimizing the update of effective links between mobile nodes. By combining SILUMOD and VIRMANEL , we obtain a tool to simulate the movement of a mobile node while evaluating and establishing potential connections between mobile nodes. Evaluations of these tools show that if virtualization is indeed a relevant and useful tool for network experiments , it also has its limitations and the realism of results depends on experimental conditions. We discuss this problem and propose at the end of this thesis , some criteria for assessing the degree of trust to give a result
Marsala, Giuseppe. "Modélisation et réalisation d'un émulateur de système de piles à combustibles : développement des stratégies et des lois de commande". Besançon, 2008. http://www.theses.fr/2008BESA2036.
Texto completo da fonteThis thesis deals with modelling of a PEM-Fuel Cell System (FCS) for power generation in an electrical vehicle. The goal of the research is the construction of an emulator of the PEM Fuel Cell stack, that of a device having the same behaviour as the real system, and the development of command strategies for the FCS. After a bibliographical study of the models of Fuel Cell stack, a buck converter structure has been chosen and then implemented to build the emulator. The novelty of this thesis is that all the auxiliary components of a FCS have been considered in a Hardware In the Loop (HIL) fashion by using a DSPACE development platform. Several command strategies have been implemented and assessed by using the emulator, which has been designed with a high bandwidth. The voltage control of the emulator has been accomplished by using the “State Variable Feedback”, which is a pole-placement technique for achieving the desired bandwidth and dynamical and steady-state performance. The particular case of control of the air-management system has been considered and used to asses the emulator. Actually several control strategies (static feedforward, PI) have been studied and their results compared also by using a novel neural network based command strategy. This neural network implements the inversion of the relationship between the compressor speed and the “oxygen excess ratio”, whose regulation is a key issue for preventing the oxygen starvation of the membrane
Nasreddine, Nadim. "Conception et modélisation d'un émulateur de réseaux de capteurs sans fils". Phd thesis, INSA de Toulouse, 2012. http://tel.archives-ouvertes.fr/tel-00719398.
Texto completo da fonteNasreddine, Nadim. "Conception et modélisation d'un émulateur d'un réseau de capteurs sans fil". Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0007/document.
Texto completo da fonteTo accelerate the design process of embedded systems, a fast and efficient simulation environment is needed. To make it efficient, the behavioral models of the elementary components of the system must be able to replace the real elements in their influences and responses to all the influential phenomena: disruptions, attenuation, delays...Our thesis work aims to contribute to this methodological approach: we treat the development of an emulator for WSNs. To do, two types of simulators have been studied:• The first is a software simulator based on the creation of behavioral models, described in VHDL-AMS.• The second is a hardware simulator based on the creation of behavioral logic models, described in synthesizable VHDL. The simulation will be done on an FPGA target. Changes may be made on the architecture dynamically
Muench, Marius. "Dynamic binary firmware analysis : challenges & solutions". Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS265.
Texto completo da fonteEmbedded systems are a key component of modern life and their security is of utmost importance. Hence, the code running on those systems, called "firmware", has to be carefully evaluated and tested to minimize the risks accompanying the ever-growing deployment of embedded systems. One common way to evaluate the security of firmware, especially in the absence of source code, is dynamic analysis. Unfortunately, compared to analysis and testing on desktop system, dynamic analysis for firmware is lacking behind. In this thesis, we identify the main challenges preventing dynamic analysis and testing techniques from reaching their full potential on firmware. Furthermore we point out that rehosting is a promising approach to tackle these problems and develop avatar2, a multi-target orchestration framework which is capable of running firmware in both fully, and partially emulated settings. Using this framework, we adapt several dynamic analysis techniques to successfully operate on binary firmware. In detail we use its scriptability to easily replicate a previous study, we demonstrate that it allows to record and replay the execution of an embedded system, and implement heuristics for better fault detection as run-time monitors. Additionally, the framework serves as building block for an experimental evaluation of fuzz testing on embedded systems, and is used as part in a scalable concolic execution engine for firmware. Last but not least, we present Groundhogger, a novel approach for unpacking embedded devices' firmware which, unlike other unpacking tools, uses dynamic analysis to create unpackers and evaluate it against three real world devices
Sylla, Abdoulaye Mamadie. "Modélisation d'un émulateur éolien à base de machine asynchrone à double alimentation". Thèse, Université du Québec à Trois-Rivières, 2013. http://depot-e.uqtr.ca/6946/1/030586161.pdf.
Texto completo da fonteDron, Wilfried. "Méthode d'estimation de la durée de vie des objets connectés". Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066719.
Texto completo da fonteConnected devices are embedded electronic systems that are powered by batteries. Their lifetime is an important constraint to take into account at very early design stages. In the context of this work, the lifetime is defined as being the time elapsed from the device very first boot until its battery does not contain enough energy to supply it. Thus, in this work, we investigate lifetime estimation in early design stages. A deep state-of-the-art's study showed that existing solutions were not accurate enough to do such estimation. Therefore, we introduce an original method oriented toward lifetime estimation in order to address this limitation. Our method relies on three fundamental aspects that are the software running on the device, its hardware platform and the battery that supplies it. This method has been implemented as a framework for the OMNeT++ network simulator. We evaluate the simulation performances of our implementation as well as the precision of our method. Moreover, in the context of a scientific collaboration with the SICS (Sweden), this method has been applied to a case study that implies several TMote Sky nodes running ContikiOS with a RPL/6LowPan communication's stack. Actually, our method gave us access to useful insights. These latter were used to improve the lifetime from 4 months to more than a year. We also compare our method’s simulation results to real experiment's measures. The absolute mean error is going from 6.17% to 11.56% depending on the model. In comparison, the state-of-the-art methods/solutions lead to an error that is greater than 35% - which highlights their inaccuracies. We also need to mention that the models that we have designed in our method were built using only the technical specifications and do not require any calibration
Livros sobre o assunto "Émulateurs"
Introduction To Network Emulation. Pan Stanford Publishing, 2012.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Émulateurs"
Vétel, Bruno. "La conception des émulateurs de jeux en ligne". In Penser (avec) la culture vidéoludique, 77–88. Presses universitaires de Liège, 2022. http://dx.doi.org/10.4000/books.pulg.24993.
Texto completo da fonte