Academic literature on the topic 'Dynamique auxiliaire'
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Journal articles on the topic "Dynamique auxiliaire":
Shoham, Shlomo, Giora Rahav, and A. Kreizler. "The Measurement of Movements on the Conformity-Deviance Continuum as an Auxiliary Tool for Action-Research." Acta Criminologica 3, no. 1 (January 19, 2006): 103–41. http://dx.doi.org/10.7202/017012ar.
Covarrubias Melgar, Felipe, América Libertad Rodríguez Herrera, Erick Alfonso Galán Castro, Manuel I. Ruz Vargas, and Maximino Reyes Umaña. "La participación y gobernanza en la planeación urbana de Acapulco." Regions and Cohesion 12, no. 3 (December 1, 2022): 110–33. http://dx.doi.org/10.3167/reco.2022.120306.
Lanctôt, Nadine, and Marc LeBlanc. "Les adolescentes membres des bandes marginales : un potentiel antisocial atténué par la dynamique de la bande ?" Criminologie 30, no. 1 (August 16, 2005): 111–30. http://dx.doi.org/10.7202/017400ar.
SIMON, Sylvaine, Aude ALAPHILIPPE, and Solène BORNE. "Focus sur le projet « Z », un espace de production de fruits renforçant les régulations biologiques dans un objectif zéro phyto." Sciences Eaux & Territoires, no. 40 (October 13, 2022): xx. http://dx.doi.org/10.20870/revue-set.2022.40.7147.
Irvine, R. L. "DAMAGE TO U. S. NAVAL. AUXILIARY JASON AS A RESULT OF EXPLOSION OF DYNAMITE ON STEAMER ALUM CHINE." Journal of the American Society for Naval Engineers 26, no. 1 (March 18, 2009): 82–84. http://dx.doi.org/10.1111/j.1559-3584.1914.tb04736.x.
Halmøy, Madeleine. "Actants and aktionsart: The Norwegian verb få as the dynamic counterpart to ha / Actants et mode d'action : le verbe norvégien få comme contrepartie dynamique de ha." Canadian Journal of Linguistics/Revue canadienne de linguistique 64, no. 02 (February 11, 2019): 216–80. http://dx.doi.org/10.1017/cnj.2018.38.
FAVERDIN, P., and C. LEROUX. "Avant-propos." INRAE Productions Animales 26, no. 2 (April 16, 2013): 71–76. http://dx.doi.org/10.20870/productions-animales.2013.26.2.3137.
Dissertations / Theses on the topic "Dynamique auxiliaire":
Esna, Ashari Esfahani Alireza. "Détection active de pannes dans les systèmes dynamiques en boucle fermée." Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST1060.
The aim is to develop a novel theory of robust active failure detection based on multi-model formulation of faults. The original method was already proposed by the Metalau group of INRIA. We have continued to work on the extension of this approach to more general cases. The focus is on the effects of feedback on the previous approach. The multi-model approach is still used to model the normal and the failed systems; however the possible advantages of using linear dynamic feedback in the construction of the auxiliary signal for robust fault detection is considered and the results are compared to the previously developed open-loop setup. An original formulation of the active fault detection problem using feedback is developed. The norm of the auxiliary signal is considered as a possible cost criterion. Also, we have considered a more general cost function that has already been used for measuring the performance of feedback configurations in Linear Control Theory. We have given a complete solution to this problem. In order to find a complete solution, several mathematical problems are solved
Liu, Jie. "State Estimation for Linear Singular and Nonlinear Dynamical Systems Based on Observable Canonical Forms." Electronic Thesis or Diss., Bourges, INSA Centre Val de Loire, 2024. http://www.theses.fr/2024ISAB0002.
This thesis aims, on the one hand, to design estimators for linear singular systems usingthemethod of modulation functions. On the other hand, it aims to develop observersfor a class of nonlinear dynamical systems using the method of canonical formsof observers. For singular systems, the designed estimators are presented in the formof algebraic integral equations, ensuring non-asymptotic convergence. An essentialcharacteristic of the designed estimation algorithms is that noisy measurements of theoutputs are only involved in integral terms, thereby imparting robustness to the estimatorsagainst perturbing noises. For nonlinear systems, the main design idea is totransform the proposed systems into a simplified form that accommodates existingobservers such as the high-gain observer and the sliding-mode observer. This simpleformis called auxiliary output depending observable canonical form.For the linear singular systems, we transform the considered system into a formsimilar to the Brunovsky’s observable canonical form with the injection of the inputs’and outputs’ derivatives. First, for linear singular systems with single input and singleoutput, the observability condition is proposed. The system’s input-output differentialequation is derived based on the Brunovsky’s observable canonical form. Algebraicformulas with a sliding integration window are obtained for the variables in differentsituations without knowing the system’s initial condition. Second, for linear singular systemswith multiple input and multiple output, an innovative nonasymptotic and robust estimation method based on the observable canonical form by means of a set of auxiliary modulating dynamical systems is introduced. The latter auxiliary systems are given by the controllable observable canonical with zero initial conditions. The proposed method is applied to estimate the states and the output’s derivatives for linear singular system in noisy environment. By introducing a set of auxiliary modulating dynamical systems which provides a more general framework for generating the requiredmodulating functions, algebraic integral formulas are obtained both for the state variables and the output’s derivatives. After giving the solutions of the required auxiliary systems, error analysis in discrete noisy case is addressed, where the provided noise error bound can be used to select design parameters.For the nonlinear dynamical systems, we propose a family of "ready to wear" nonlineardynamical systemswith multiple outputs that can be transformed into the outputauxiliarydepending observer normal forms which can support the well-known slidingmode observer. For this, by means of the so-called dynamics extension method anda set of changes of coordinates (basic algebraic integral computations), the nonlinearterms are canceled by auxiliary dynamics or replaced by nonlinear functions of themultiple outputs. It is worth mentioning that this procedure is finished in a comprehensible way without resort to the tools of differential geometry, which is user-friendly for those who are not familiar with the computations of Lie brackets. In addition, the efficiency and robustness of the proposed observers are verified by numerical simulations in this thesis. Second, a larger class of "ready to wear" nonlinear dynamicalsystems with multiple inputs and multiple outputs are provided to further extend anddevelop the systems proposed in the first case. In a similar way, by means of the corresponding auxiliary dynamics and a set of changes of coordinates, the provided systems are converted into targeted nonlinear observable canonical forms depending on both the multiple outputs and auxiliary variables. Naturally, this procedure is still completed without resort to geometrical tools. Finally, conclusions are outlined with some perspectives
Arrignon, Florent Balent Gérard. "HOVER-WINTER un modèle multi-agent pour simuler la dynamique hivernale d'un insecte auxiliaire des cultures (Episyrphus balteatus, Diptera: Syrphidea) dans un paysage hétérogène /." Toulouse : INP Toulouse, 2007. http://ethesis.inp-toulouse.fr/archive/00000444.
Arrignon, Florent. "Hover-winter : un modèle multi-agent pour simuler la dynamique hivernale d'un insecte auxiliaire des cultures (Episyrphus balteatus, Diptera: Syrphidea) dans un paysage hétérogène." Phd thesis, Toulouse, INPT, 2006. https://hal.science/tel-04574792.
Moukambi, Félicien. "Études de la dynamique des cellules Tfh et T CD4 mémoires au cours de l'infection au VIH." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27740.
Since its discovery, HIV-1 has caused the death of 35 million people, and 36.9 million are living infected. Although researches have led to the development of antiretroviral therapies, which not only improve life expectation but also life quality of infected individuals, these therapies are not capable of eradicating the virus, and unfortunately there is no vaccine. The pathogenesis of HIV-1 is linked to a dysfunction of CD4 T cells that favors progression to AIDS. Therefore, given that most vaccines are based on T cell-dependent antibody production, the first part of my PhD research is devoted to understanding the impact of HIV-1 on CD4 T Follicular helper (Tfh) cells, which are essential for B cell activation and the production of specific antibodies. These cells are particularly crucial in the spleen, which is the major organ for B cell response. In the second part, I have analyzed the dynamics of memory CD4 T, Tfh and of B cells in mesenteric lymph nodes: an inductive site of the immune response that provides memory cells to the lamina propria (effector site) of the intestinal mucosa. Given the difficulties to study these deep organs, particularly during the acute phase in humans, I have used rhesus macaques infected with the simian immunodeficiency virus (SIV) to study the dynamics of Tfh cells. My results show an early depletion of splenic Tfh cells during the acute phase; a depletion that persists during the chronic phase within macaques in which the infection rapidly progresses to AIDS. Concomitantly, we report a depletion of memory B cells and low titers of anti-SIV IgG titers in these macaques. Furthermore, I observed a massive depletion of memory CD4 T, Tfh and B cells in mesenteric lymph nodes, as well as a phenotypic change of Tfh cells that become central memory cells associated with the upregulation of the expression of CD127 (IL-7 receptor). My results also show that environmental cytokines such as IL-7 and IL-27 contribute to their dysfunction as support the expression of transcription factors that inhibit Tfh cells such as T-bet, Foxo1 and Stat5. In conclusion, my results provide a better understanding of B cell dysfunction related to the early loss of the Tfh cells during HIV/SIV infection. Moreover, I hypothesize that the loss of immunity in the intestinal mucosa is due to the sudden depletion of memory CD4 T, Tfh and B cells in the mesenteric lymph nodes. Therefore, maintaining Tfh and memory CD4 T cells during the early phase of infection could be a promising therapeutic and vaccine approach for neutralizing HIV/SIV, as well as preventing bacterial translocation.
Rabezanahary, Aina Henintsoa. "Dynamique d'infection des sous-populations lymphocytaires T CD4 chez le macaque Rhésus infecté par le Virus de l'Immunodéficience Simienne." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/27654.
During HIV infection, viral reservoirs are established early, and represent a major problem regarding their eradication. Understanding the basis of viral dissemination, particularly in deep tissues such as the spleen, which is difficult to analyze in Human, particularly during the early phase of infection, is a challenge for public health. Our hypothesis was to determine the contribution of a subset of CD4 T cells namely Tfh (T follicular helper cells) that play a major role in the establishment of humoral response and which is preponderant in the spleen. My results showed in rhesus macaques infected with simian immunodeficiency virus (SIV) that during the acute phase of infection, splenic Tfh cells are a target of the virus. This early infection of these cells could therefore contribute to the spread of infection and account for the lack of effective antibody response against the virus.
Mascalchi, Patrice. "Analyse par suivi de particule unique à la surface de lymphocytes vivants de l'organisation dynamique des récepteurs CD4 et CCR5 impliqués dans l'infection par le VIH." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1560/.
Infection of CD4+ T lymphocytes by the human immunodeficiency virus (HIV) is initiated by the sequential interaction of the viral envelope protein gp120 with the primary receptor CD4 and then a coreceptor, CCR5 in most cases of primo-infection. The necessity of this double interaction suggests that the efficiency of the HIV entry process could depend on the dynamic membrane organization of these two receptors. To study this organization at the surface of living lymphocytes, we used single particle tracking (SPT), a high resolution and non-invasive microscopy approach. Firstly, we validated the choice of Quantum dots (QD) for SPT experiments based on the results of a systematic study that evaluated the influence of the particle on the measured diffusion coefficient. Secondly, we determined and analyzed the movement of CD4 and CCR5 receptors labeled with QD, at the surface of lymphocytes immobilized on glass coverslips. These experiments showed that both receptors exhibit three different diffusion modes: random, permanently or transiently confined diffusion. Addition of molecules that destabilize the CD4-CCR5 interaction (soluble CD4, maraviroc) revealed that it is partially responsible for their confinement. All these observations allow us to establish the basis for a model of the dynamic membrane organization of CD4 and CCR5 at the surface of living lymphocytes. These data represent a starting-point for the understanding of the presumed relationship between the dynamic organization of the receptors and the first steps of the HIV infection process
Nguyen, Khoa Duc. "Electrical energy management of the vehicle network including electrified auxiliaries in HEV/PHEVs." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI004.
Facing to the increase of fuel price and stringent legal requirements on the greenhouse gas emission in recent years, truck manufacturers have to investi-gate more on new technical measures to be more competitive on the market. Within this context, electromobility rises as one of the most promising approaches to answer to above requirements, where its principle solution is the electric hybridization of powertrain. In parallel with this solution, another technical solution of electromobility- the auxiliary electrification that appears recently becomes also an attractive solution for not only the academic community but also the automotive companies. However, the integration of these two solutions together in a vehicle can give rise to a much more complicated system control problem, especially in term of energy management. The objective of this work is to figure out an appropriate approach for designing the electrified auxiliary control, which can cope with the control strategy of the electric hybrid powertrain on one hand, and can improve the overall energy efficiency of the vehicle on the other hand. Firstly, the work focuses on only one typical electrified auxiliary- the air supply system. For this simple case, energy-based modeling and control based on predictive control (MPC) are developed in order to minimize the energy consumption/efficiency of this auxiliary along a driving cycle. By pointing out the difficulties for reaching the target on the energy efficiency when considering only auxiliary units, the approach focuses then on the impact analysis of the auxiliary system on the overall vehicle‘s energy efficiency. The first step of this analysis proposes a general method to simplify the powertrain controller of HEV/PHEVs. Then, an optimization-based method is presented and applied on a simplified vehicle model, which contains the simple powertrain controller obtained from the above step. This optimization method, which is an offline con-trol and based on the dynamic programming method, allows us to determine the maximal achievable energy saving of the vehicle when applying an advanced control strategy on the electrified auxiliary system. Additionally, some ideas/rules for designing the auxiliary control are drawn as well from the results obtained with the above method. Toward an online implementation of these concepts, a multi-agent based control is finally adopted for controlling the electrified auxiliary system (EAS). Based on the results of the impact analysis step and a simple model of the EAS, three control settings for the EAS (centralized, hierarchical, and distributed) are studied and discussed. Finally, different algorithms for these control settings are provided, and then compared to point out the advantages and limitations of each algorithm
Bertrand, Colette. "L'hétérogénéité spatiale et temporelle des paysages agricoles influence les auxiliaires généralistes des cultures et le potentiel de contrôle biologique des ravageurs." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S161/document.
In the context of reducing pesticide use, the potential role of some arthropod groups as pest natural enemies provides them an ecological and economic interest. In particular, ground beetles and spiders are generalist predators likely to be effective biocontrol agents. Previous studies have shown that the structure and composition of their communities, as well as the effectiveness of biological control, are influenced by landscape heterogeneity, and in particular by the presence of semi-natural habitats. However, the role of the crop mosaic, which can be highly heterogeneous in space and time, have been little considered. The main objective of our study was to determine the influences of spatial and temporal heterogeneity of agricultural landscapes on generalist natural enemies and the potential for biological pest control. We sampled carabid and spider communities in winter cereal fields, and estimated biological control potential using sentinel aphids glued on predation cards. We characterized the spatial heterogeneity of the landscapes around each cereal field by 1) the amount of wooded habitats and the length of the hedgerow network, 2) the average size of the agricultural fields, and 3) crop diversity. We also proposed four new metrics that synthesize different aspects of the multi-year temporal heterogeneity of cropped areas. Our results show that in spring, landscapes characterized by small fields, and therefore by a high density of non-cropped field margins, promote spiders abundance in cereal fields. In early summer, landscapes with small fields also promote aphid predation rates and the abundance of carabid spring breeders, which overwinter as adults in semi-natural habitats. Crop diversity promotes the abundance of carabids overwintering in soils of arable fields and breeding in autumn. Our results also show that the temporal heterogeneity of the crop mosaic - characterized among other things by the changes in crop diversity over a five year period - benefits some carabid species commonly found in agricultural landscapes (such as Poecilus cupreus and Pterostichus melanarius) which are likely to play an important role as pest natural enemies. These results highlight the complementary role of the crop mosaic and the non-cropped field borders for generalist natural enemies, and show the importance of taking into account the spatial and temporal heterogeneity of the cultivated area in further ecological studies on biodiversity in agricultural landscapes. In the context of reducing pesticide use, our results suggest that landscapes with 1) a high crop diversity that change over time, and 2) small fields that promote the interspersion between crops and semi-natural habitats, are likely to promote generalist natural enemies and biological pest control
Benhani, El mehdi. "Sécurité des systèmes sur puce complexes hétérogènes." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSES016.
The thesis studies the security of the ARM TrustZone technology in the context of complex heterogeneous SoCs. The thesis presents hardware attacks that affect elements of the SoCs architecture and it also presents countermeasure strategies
Book chapters on the topic "Dynamique auxiliaire":
Barralis, Christine. "Chapitre XII. Les auxiliaires de l’évêque : chanoines et archidiacres." In Structures et dynamiques religieuses dans les sociétés de l’Occident latin (1179-1449), 147–56. Presses universitaires de Rennes, 2010. http://dx.doi.org/10.4000/books.pur.131151.