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Статті в журналах з теми "Systèmes microélectromécaniques – Simulation par ordinateur"
Toussaint, J., T. Habtemariam, D. Oryang, and S. Wilson. "Développement d’un modèle de simulation informatique pour l’anaplasmose, notamment dans les Antilles." Revue d’élevage et de médecine vétérinaire des pays tropicaux 46, no. 1-2 (January 1, 1993): 47–48. http://dx.doi.org/10.19182/remvt.9396.
Повний текст джерелаThrasher, Craig L. "Corporate Team Training : A More Rational Organizational Development Method." Relations industrielles 27, no. 4 (April 12, 2005): 655–62. http://dx.doi.org/10.7202/028331ar.
Повний текст джерелаFortin, J. P., R. Moussa, C. Bocquillon, and J. P. Villeneuve. "Hydrotel, un modèle hydrologique distribué pouvant bénéficier des données fournies par la télédétection et les systèmes d'information géographique." Revue des sciences de l'eau 8, no. 1 (April 12, 2005): 97–124. http://dx.doi.org/10.7202/705215ar.
Повний текст джерелаДисертації з теми "Systèmes microélectromécaniques – Simulation par ordinateur"
Klein, Meyer Jean-Sébastien. "Contribution à la modélisation multi-physique des systèmes complexes dans un contexte de DFX : application à la conception de micro-mécanismes." Troyes, 2008. http://www.theses.fr/2008TROY0011.
Повний текст джерелаWe propose in this PhD a method to assist the designer in the choice of multi-physical tech-nologies. We propose to improve the link be-tween functional requirements of a product and technologies. This link between those two concepts is made owing to physical principles. We propose a model based on relationships between Function, Physical Principle and Tech-nology (FPPT). We present in detail this model by describing the process of creation, the enti-ties that composed the FPPT model and the functional, physical and technological parame-ters. Those parameters also support the link and help to assess the design choices. They can be use to simulate the behaviour of a design alternative very early in the design process. The FPPT model takes into account physical and technological limits issued from the physics or the technology solutions. Those limits are espe-cially useful for MEMS design. We present, trough an example (the design of a MEMS switch), how the FPPT model is integrated into a DFX approach. We also present how information given by the FPPT model and how the parameters can be used to realise more complex simulation: Multi Disciplinary Optimisation (MDO) or robustness analyses. Finally we present the specifications and the development of a software demonstrator (KBE system) to implement the FPPT model
Aouabdia, Nabila. "Etude d'un capteur à base de résonateur planaire pour applications au contrôle non destructif." Paris 6, 2012. http://www.theses.fr/2012PA066137.
Повний текст джерелаThe objective of this thesis is the study of a sensor based on a rectangular planar resonator (RPR) for applications to Non-destructive Evaluation (NDE). In this context, two approaches were defined. First one, conception, modeling, simulation and realization have been made on rectangular structures with an anisotropic substrate and an isotropic superstrate. An analytic model was developed by using the Moments Method (MoM) and validated with two electromagnetic commercial softwares (HFSS and CST). The second approach of this work was focused on the characterization of biological materials with the RPR prototypes used as an applicator for Non-destructive Evaluation in the medical domain. Our center of interest was oriented towards the measurements of dielectric properties of biological tissues replacing the superstrate in order to extract their complex permittivity. Measurements were made in the Laboratoire d'Électronique et Électromagnétisme (L2E) on several samples (liver, fat, chicken, butter, foie gras, etc…). Measurements associated with electromagnetic simulations have enabled to obtain microwave dielectric parameters of these materials
Nguyen, Duy Duc. "Modeling a micro-mirror array and contribution to the development of a simulator of micro-system arrays." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD087.
Повний текст джерелаIn this thesis, we contribute to the modeling, simulation and optimization of a new generation of micro mirror arrays designed by the Astrophysics Laboratory of Marseille (LAM). A contribution is also made to the development of MEMSALab a symbolic computation software package designed to asist multiscale model derivation for microsystem arrays. The coupling between the quasi-static nonlinear behavior of a cell of the micro-mirror array and the electrostatic field used for its actuation is simulated. The simulation is then used to study the phenomenon of pull-in and its optimization. Then, a homogenized model for the electrostatic field in the vacuum space surrounding in the micro-mirror array has been built using an asymptotic method. The contributions to the development of MEMSALab consist in the introduction of an extension and combination theory that will be used to construct multiscale models based on various asymptotic approaches by a process of successive complexifications. Finally, a complete specification language for using MEMSALab is presented and illustrated by significant examples. In particular, it was used to encode the derivation of a homogenized model that serves as an initial state to the extension-combination method
Hénin, Jérôme. "Simulations moléculaires d'événements rares dans les systèmes biologiques membranaires." Nancy 1, 2006. http://www.theses.fr/2006NAN10007.
Повний текст джерелаSlow or non spontaneously occurring processes involving biological macromolecules may still be studied through molecular dynamics simulations, provided that an algorithm promotes the exploration of a well–chosen reaction coordinate by the system. We implemented such an algorithm in the NAMD program, designed for large–scale simulations of biomolecular systems. We can then investigate the folding of peptides into alpha–helices, the recognition and association of proteins inside the membrane, as well as the specific transport of a small molecule, glycerol, by a bacterial transmembrane channel
Rongère, François. "Simulation dynamique des systèmes bâteau-avirons-rameur(s)." Ecole centrale de Nantes, 2011. https://tel.archives-ouvertes.fr/tel-00679491.
Повний текст джерелаRowing, a mechanical water sport, consists in propelling a boat by human power. From a mechanical point of view, the complex system Boat-Oars-Rower(s) can be considered as a multibody structure on a floating base. Its study comes under the multibody mechanics and, concerning the fluid-structure interaction, under seakeeping, maneuverability and aerodynamics. The large amplitude periodic motion of the rower and the intermittent nature of propulsion, both excite the boat along its six degree of freedom. Aside from practice, the strong coupling between the rowers, the boat and propulsion can be understood, and accurately described by numerical simulation. A framework for dynamics simulation taking into account the floating base has been developed by unifying mechanical and hydrodynamic approaches. It has been called GMRS (Global Mechanical Rowing Simulator). Robotics techniques have been used to describe the mechanics of the multibody system. The systematization of the parameters allows to model every kind of rowing system, taking on board one toeight rowers with one or two oars. Dynamics solving is based on the recursive formulation of the Newton-Euler equations. The inertial characteristics of the rowers are set fromanthropometric models. The system is driven by inverse dynamics. The kinematics are generated using B-spline models, whose properties are exploited to allow a parametric description of the motion, offering the possibility to optimize the rowing technique
Le, Bodic Laurent. "Approche de l'évaluation des systèmes interactifs multimodaux par simulation comportementale située." Brest, 2005. http://www.theses.fr/2005BRES2006.
Повний текст джерелаThe Phd thesis is a contribution to evaluation of multimodal interactive systems. More particularly, we propose an approach of the evaluation of theses systems by a behavorial and located simulation. Such a study requires the use of a virtual actor, registered in a virtual environment. Its interaction with a virtual interactive system is used as a representation of a possible man-machine communication. The people in charge of the development use then the usability problems, detected in the virtual world, as a source of investigations to increase the efficiency of their prototypes. Modeling that we propose lies on the interaction of three functional bricks, which are : Models of environment, which influence user in his decision-making and which interacts with him (avoidance, displacement, etc. ). Model describing interactive systems which, by their characteristics, allows and guides the dialogue. Model of users, reproducing human decision with mixing of cognitive and perceptive aspects. This virtual user, by his characteristics, his history, interacts with environment and interactive system through the realization, in a virtual world, of a scenario of evaluation. This study is concluded by the introduction of the software demonstrator SIHMM and the study from its operational validity. This one is examined through the correlation of reals and virtuals experiments. From this one, we determine the potential use of the simulation in the phases of development, of interactive systems and open prospects on the future use of the simulation which we wish to develop
Béraud, Nicolas. "Fabrication assistée par ordinateur pour le procédé EBM." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI052/document.
Повний текст джерелаThe Electron Beam Melting (EBM) process allows to build metallic parts from powder. Thanks to the geometric and mechanical quality of the parts produced, the EBM process can be used to manufacture functional parts and not only prototypes. This process, with other additive metallic processes, make it possible to consider a transition from 3D printing to metallic additive manufacturing.The use of additive manufacturing in an industrial environment requires compliance with quality, cost and time criteria for the parts produced. The production of manufactured parts involves a series of numerical stages which is called the numerical chain. The numerical chain has a significant impact on the three criteria mentioned above. Thus, this thesis provides an answer to the following question:How Computer Aided Manufacturing can improve the quality, cost and time of the EBM manufacturing process?This problem is addressed through the following underlying question:What are the required characteristics for a Computer Aided Manufacturing system adapted to the EBM process?In order to answer this question, the current numerical chain is analyzed. Three main limitations are found:- the use of STL files format- the process cannot be optimized at different scales- the process cannot be simulatedTo solve these issues, a CAM environment is proposed. It allows the centralization of all numerical operations in a single environment. All supported formats can be used within this environment, such as native CAD file formats or STEP format. Software developments are done to prove the feasibility of such an environment.The CAM environment implementation reveals the crucial role of simulation in this system. It is therefore necessary to answer this second question:How to obtain an EBM process simulation allowing the development of parameters, virtually?Although EBM simulation is a recurrent subject in scientific literature, existing studies are based on the finite elements method but the calculation time needed is too important to be used in an CAM environment. Thus, an alternative type of simulation is created in this thesis: a simulation based on abacus. It is composed of a finite elements model, that allows heat maps generation for standards cases of heating and cooling. These heat maps are then transformed in abacus. The simulation algorithm based on abacus search the nearest abacus from the simulated situation in order to estimate the temperatures at the next time step.This simulation method was used to reduce the calculation time while keeping a sufficient precision to optimize process parameters.With the simulation based on abacus, a tool for the optimization of melting strategies is developed. This tool allows quality improvement for the produced parts through the calculation of melting strategies according to thermic criteria.To summarize, the main contributions of this work are:- the definition of requirements specifications of a powerful numerical chain for the EBM process- the development of a CAM environment adapted to the EBM process- the proposal of a fast simulation for the EBM process, based on abacus- the development of a tool for the optimization of melting strategies
Escude, Bruno. "Modélisation et simulation à évenements discrets de systèmes hybrides." Aix-Marseille 3, 2000. http://www.theses.fr/2000AIX30017.
Повний текст джерелаCavaliere, Domenico. "DAMeSI : un profil pour l'évaluation de performances des systèmes d'automatisation distribués." Vandoeuvre-les-Nancy, INPL, 2002. http://www.theses.fr/2002INPL032N.
Повний текст джерелаPierreval, Henri. "Analyse, modélisation et simulation des systèmes de production : application au cas d'une fonderie." Lyon 1, 1987. http://www.theses.fr/1987LYO19029.
Повний текст джерелаКниги з теми "Systèmes microélectromécaniques – Simulation par ordinateur"
Treuil, Jean-Pierre. Modélisation et simulation à base d'agents: Exemples commentés, outils informatiques et questions théoriques. Paris: Dunod, 2008.
Знайти повний текст джерелаPhil, Husbands, and Harvey Inman, eds. Fourth European Conference on Artificial Life. Cambridge, Mass: MIT Press, 1997.
Знайти повний текст джерелаPrusinkiewicz, Przemyslaw. Lindenmayer systems, fractals, and plants. Berlin: Springer-Verlag, 1989.
Знайти повний текст джерелаEmmeche, Claus. The garden in the machine: The emerging science of artificial life. Princeton, N.J: Princeton University Press, 1994.
Знайти повний текст джерелаCai, Yang. Digital human modeling: Trends in human algorithms. Berlin: Springer, 2008.
Знайти повний текст джерелаCai, Yang. Digital human modeling: Trends in human algorithms. Berlin: Springer, 2008.
Знайти повний текст джерелаG, Langton Christopher, ed. Artificial life: An overview. Cambridge, Mass: MIT Press, 1995.
Знайти повний текст джерелаDigital human modeling: Trends in human algorithms. Berlin: Springer, 2008.
Знайти повний текст джерелаservice), SpringerLink (Online, ed. Digital Human Modeling: Second International Conference, ICDHM 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.
Знайти повний текст джерелаHannon, Bruce, Matthias Ruth, and S. A. Levin. Modeling Dynamic Biological Systems. Springer, 2013.
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