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Literatura académica sobre el tema "Modèles à croissance aléatoire linéaire"
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Artículos de revistas sobre el tema "Modèles à croissance aléatoire linéaire"
Auguste Emmanuel, ISSALI, MPIKA Joseph, MOKOLO Jean Baptiste y ATTIBAYEBA P. "Response of Cucurbitaceae seedlings, Cucurbita mochata, Cucurbita pepo and Lagenaria siceraria to the fertilization by pig dejecta at Brazzaville, Congo". Journal of Applied Biosciences 150 (30 de junio de 2020): 15469–76. http://dx.doi.org/10.35759/jabs.150.7.
Texto completoBalafrej, Mohammed, Abdelatif Sahnoun y Mohamed Sadik. "Comparaison des modèles mathématiques non linéaires et détermination du modèle qui décrit au mieux la croissance de la race Sardi". Revue d’élevage et de médecine vétérinaire des pays tropicaux 73, n.º 4 (25 de noviembre de 2020): 255–61. http://dx.doi.org/10.19182/remvt.31945.
Texto completoLordon, Frédéric. "Théorie de la croissance : quelques développements récents". Revue de l'OFCE 36, n.º 2 (1 de marzo de 1991): 157–211. http://dx.doi.org/10.3917/reof.p1991.36n1.0157.
Texto completoAlonso, Lucille y Florent Renard. "Compréhension du microclimat urbain lyonnais par l’intégration de prédicteurs complémentaires à différentes échelles dans des modèles de régression". Climatologie 17 (2020): 2. http://dx.doi.org/10.1051/climat/202017002.
Texto completoR. B., Fatai, Akinyemi M. O., Osaiyuwu O. H., Ewuola K. M., Bello S. F. y Salako A. E. "Weight-Age Relationship in Yoruba and FUNAAB-Alpha Chickens using Non-linear Regression Models". Nigerian Journal of Animal Production 50, n.º 5 (12 de octubre de 2024): 88–95. https://doi.org/10.51791/njap.v50i5.8034.
Texto completoBattista, Katelyn, Liqun Diao, Karen A. Patte, Joel A. Dubin y Scott T. Leatherdale. "Utilisation des arbres décisionnels dans la recherche en surveillance de la santé de la population : application aux données d’enquête sur la santé mentale des jeunes de l’étude COMPASS". Promotion de la santé et prévention des maladies chroniques au Canada 43, n.º 2 (febrero de 2023): 78–92. http://dx.doi.org/10.24095/hpcdp.43.2.03f.
Texto completoAdamu, J., A. Y. Shuaibu y A. O. Raji. "Growth characteristics of noiler chickens as determined by nonlinear algorithms". Nigerian Journal of Animal Production 48, n.º 5 (10 de noviembre de 2021): 12–19. http://dx.doi.org/10.51791/njap.v48i5.3183.
Texto completoUmutoni, C. y I. Ngaruye. "Prediction of Tea Production in Rwanda Using Data Mining Techniques". Agricultural and Food Science Journal of Ghana 15, n.º 1 (22 de marzo de 2023): 1631–40. http://dx.doi.org/10.4314/afsjg.v15i1.10.
Texto completoOchefu, J., B. Emmanuel y S. C. Onho. "Gastrointestinal tract morphometry and visceral organ weights of grower rabbit fed dried ginger (Zingiber officinale) root meal". Nigerian Journal of Animal Production 47, n.º 6 (28 de febrero de 2021): 10–17. http://dx.doi.org/10.51791/njap.v47i6.2862.
Texto completoMakovický, Pa, M. Milerski, M. Margetín, Pe Makovický y M. Nagy. "Paramètres génétiques de la taille des citernes de lait chez les brebis diagnostiqués par échographie parmi les races: improved Valachian, Tsigai, Lacaune et leurs croisements". Archivos de Zootecnia 64, n.º 247 (10 de diciembre de 2015): 403–8. http://dx.doi.org/10.21071/az.v64i248.427.
Texto completoTesis sobre el tema "Modèles à croissance aléatoire linéaire"
Siest, Pierrick. "Étude d’un modèle de percolation avec contrainte, et de modèles à croissance aléatoire linéaire". Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0204.
Texto completoConstrained percolation is the study of percolation models in which the random subgraph obtained after edge removal is conditioned to verify a particular constraint. The first part of this thesis deals with a specific constrained percolation model: the corner percolation model. We show that in a regime with preferred directions, there are almost surely infinitely many infinite edge paths, and we determine the common asymptotic direction of these paths, using two different approaches. The second part of this thesis deals with interacting particle systems. We focus on variants of two classical models in this field: the Richardson model and the contact process. The latter can be seen as simplified versions of models representing the evolution over time of an epidemic, with infection and recovery dynamics. We focus on the incorporation into these models of a mixing dynamics, corresponding to the movement of individuals. We show several results on the Richardson model with mixing and the contact process with mixing, including an asymptotic shape theorem for the set of infected individuals. To prove this theorem, we use a general asymptotic shape theorem that we have shown for a class of interacting particle systems, which we call linear random growth models: this theorem is the subject of the last part of this thesis
Deshayes, Aurélia. "Modèles de croissance aléatoire et théorèmes de forme asymptotique : les processus de contact". Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0168/document.
Texto completoThis thesis is a contribution to the mathematical study of interacting particles systems which include random growth models representing a spreading shape over time in the cubic lattice. These processes are used to model the crystal growth or the spread of an infection. In particular, Harris introduced in 1974 the contact process to represent such a spread. It is one of the simplest interacting particles systems which exhibits a critical phenomenon and today, its behaviour is well-Known on each phase. Many questions about its extensions remain open and motivated our work, especially the one on the asymptotic shape. After the presentation of the contact process and its extensions, we introduce a new one: the contact process with aging where each particle has an age age that influences its ability to give birth to its neighbours. We build a coupling between our process and a supercritical oriented percolation adapted from Bezuidenhout-Grimmett's construction and we establish the 'at most linear' growth of our process. In the last part of this work, we prove an asymptotic shape theorem for general random growth models thanks to subadditive techniques, which can be complicated in the case of non-Permanent models conditioned to survive. We conclude that the process with aging, the contact process in randomly evolving environment, the oriented percolation with hostile immigration and the bounded modified contact process satisfy asymptotic shape results
Deshayes, Aurélia. "Modèles de croissance aléatoire et théorèmes de forme asymptotique : les processus de contact". Electronic Thesis or Diss., Université de Lorraine, 2014. http://www.theses.fr/2014LORR0168.
Texto completoThis thesis is a contribution to the mathematical study of interacting particles systems which include random growth models representing a spreading shape over time in the cubic lattice. These processes are used to model the crystal growth or the spread of an infection. In particular, Harris introduced in 1974 the contact process to represent such a spread. It is one of the simplest interacting particles systems which exhibits a critical phenomenon and today, its behaviour is well-Known on each phase. Many questions about its extensions remain open and motivated our work, especially the one on the asymptotic shape. After the presentation of the contact process and its extensions, we introduce a new one: the contact process with aging where each particle has an age age that influences its ability to give birth to its neighbours. We build a coupling between our process and a supercritical oriented percolation adapted from Bezuidenhout-Grimmett's construction and we establish the 'at most linear' growth of our process. In the last part of this work, we prove an asymptotic shape theorem for general random growth models thanks to subadditive techniques, which can be complicated in the case of non-Permanent models conditioned to survive. We conclude that the process with aging, the contact process in randomly evolving environment, the oriented percolation with hostile immigration and the bounded modified contact process satisfy asymptotic shape results
Chaubert-Pereira, Florence. "Combinaisons markoviennes et semi-markoviennes de modèles de régression. Application à la croissance d'arbres forestiers". Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2008. http://tel.archives-ouvertes.fr/tel-00341822.
Texto completoDantigny, Philippe. "Cinétique, modélisation de la croissance de saccharomyces cerevisiae : commandes non-linéaires de type L/A d'un procédé semi-continu". Vandoeuvre-les-Nancy, INPL, 1989. http://www.theses.fr/1989NAN10141.
Texto completoMoussa, Kaouther. "Estimation de domaines d'attraction et contrôle basé sur l'optimisation : application à des modèles de croissance tumorale". Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALT078.
Texto completoThe main objective of this thesis is to propose frameworks and algorithms that are based on advanced control approaches, in order to guide cancer treatments scheduling. It also aims at pointing out the importance of taking into account the problem of stochastic uncertainties handling in the drug scheduling design, since cancer dynamical systems are considered to be highly uncertain phenomena.Cancer dynamical interactions are still an open research topic which is not fully understood yet. The complexity of such dynamics comes from their partially unknown behavior and their uncertain nature. Additionally, they are often described by nonlinear complex dynamics and require taking into consideration many constraints related to physiology as well as biology.In terms of control design, this topic gathers many complexity ingredients such asnonlinear dynamics, constraints handling and optimality issues. Therefore, in this thesis, we propose to use a recent optimal control approach that is based on moment optimization. This framework has the advantage of considering all the state and input variables as probability densities, allowing therefore to explicitly consider parametric as well as initial state uncertainties in the optimal control problem. We use this framework in Part II, in order to design robust optimal control schedules that represent cancer drugs injection profiles.The second problem that we address in Part III consists in the estimation of regionsof attraction for cancer interactions models. This problem is interesting in the context of cancer treatment design, since it provides the set of all possible initial conditions (tumor and patient health indicators), that can be driven to a desired targeted safe region, where the patient is considered to be healed. Furthermore, we focus on the assessment of methodologies that take into consideration the parametric uncertainties that can affect the dynamical model
Dubois, Anne. "Tests de bioéquivalence basés sur les modèles non linéaires à effets mixtes : application à la pharmacocinétique des médicaments biologiques". Paris 7, 2011. http://www.theses.fr/2011PA077188.
Texto completoThis thesis considers bioequivalence tests to analyse crossover trials using nonlinear mixed effects modelling (NLMEM). AH proposed applications concern biologic drugs. We first compared the usual bioequivalence tests based on the individual parameters estimated by non compartmental analysis (NCA) to those based on the empirical Bayes estimates (EBE) obtained from NLMEM. We observed an inflation of the type I error of the EBE-based tests which is linked to the shrinkage and thus limits the use of such tests. Then, we studied the Wald test and the likelihood ratio test (LRT) based on a NLMEM including the treatment, period, and sequence effects, in top of the between and within-subject variability. We proposed a method to perform the Wald test on a secondary parameter of the structural model. For the small sample size designs, the type I error of the Wald test and LRT is inflated. For the Wald test, this inflation can be corrected using the empirical estimation standard error or an approach based on the weighting of the estimation variance. These results were applied to the analysis of two bioequivalence trials comparing different formulations of somatropin or erythropoietin. Finally, we demonstrated that the use of the Fisher information matrix allows the evaluation and the optimisation of designs of bioequivalence crossover trials which will be analysed by NLMEM. To conclude, this work underlines the interest of the bioequivalence analysis based on NLMEM and applied to clinical trials on biologic drugs
Gu, Chao. "Création d'un modèle inductifs de croissance de clusters industriels à flux optimisés, pour réduire leur impact sur l'environnement". Thesis, Le Havre, 2015. http://www.theses.fr/2015LEHA0013/document.
Texto completoIndustrial ecology aims to resolve issues related to the use of technological resources in societies in order to add to the party the knowledge to begin to assess quality issues related to the environment and resource availability issues. The concept of industrial ecology can be realized and practiced through the establishment of eco-industrial parks. An eco-industrial park is a manufacturing community and service businesses located together on a common property. Members seek environmental performance, increased economic and social through collaboration in managing environmental and resource. The main aim of this thesis is to create mathematical optimization models to maximize trade flows in an eco-industrial park and to reduce the negative impacts of industry on the environment. The seven symbolic eco-industrial parks have been studied in this thesis in order to get a practical view of the issues and to acquire information from the development of eco-parks in reality. The numerical tools and optimization models for eco-industrial parks were studied. Three optimization models have been proposed with numerical simulations in this thesis
Dervaux, Julien. "Morphogénèse et élasticité en géométrie mince". Phd thesis, Université Paris-Diderot - Paris VII, 2010. http://tel.archives-ouvertes.fr/tel-00544143.
Texto completoGökcan, Hatice. "Modélisation moléculaire de la réactivité de GABA-AT : de petits modèles représentatifs à la protéine complète, de la mécanique moléculaire à la chimie quantique, du statique au dynamique". Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0130/document.
Texto completoUnderstanding enzymes and their catalytic mechanisms is very important in order to develop more effective drugs having little to no side effects. In order to decipher the catalytic behavior of enzymes, different approaches such as QM, MM-MD, and QM/MM can be used and their results can be correlated. The main aim of this thesis is to get a deeper understanding of the mechanistic insights of the reactivity and of the dynamics of the pyridoxal-5-phosphate (PLP) dependent enzyme y-aminobutyric acid aminotransferase (GABA-AT). Because GABA-AT resembles many other PLP-dependent enzymes, understanding it could be of importance for the broad community of biochemists and computational chemists who study such class of proteins. Our work has consisted of five stages to pursuit the comprehension of GABA-AT. First, the reaction and the preferred binding mode of the natural substrate GABA has been elucidated with different isomers by means of model systems with DFT. Second, the dynamics and the behavior of the enzyme has been studied with MM-MD through the use of apoenzyme, holoenzyme and holoenzyme with an inactivator. Third, the effect of the active site residues in the inactivation mechanism has been investigated with the modelling of clusters at the QM level involving key residues. Fourth, new diagonalization routines for the SEBOMD (SemiEmpirical Born-Oppenheimer Molecular Dynamics) approach implemented in the Amber suite of programs, have been incorporated using LAPACK and SCALAPACK libraries, tested and evaluated to optimize the diagonalization procedure of the Fock matrix. Fifth, reaction free energies of PLP containing systems have been investigated with SEBOMD simulations