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Academic literature on the topic 'Plan expérimental croisé'
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Journal articles on the topic "Plan expérimental croisé"
Boucher, Louis-Philippe. "Vérification expérimentale de la relation entre l’utilisation des opérations formelles et le degré de complexité conceptuelle." Revue des sciences de l'éducation 5, no. 2 (October 9, 2009): 215–25. http://dx.doi.org/10.7202/900106ar.
Full textLenclud, Gérard. "La Statue du Commandeur (Note critique)." Annales. Histoire, Sciences Sociales 48, no. 5 (October 1993): 1221–30. http://dx.doi.org/10.3406/ahess.1993.279208.
Full textDissertations / Theses on the topic "Plan expérimental croisé"
Couffignal, Camille. "Variabilité de la réponse pharmacologique, modélisation et influence des plans expérimentaux." Electronic Thesis or Diss., Université Paris Cité, 2021. http://www.theses.fr/2021UNIP5250.
Full textThe increasing number of patients with chronic diseases, most of whom are subject to long-term treatment, justifies the exploration and characterisation of phenotypic and genetic factors of pharmacological response. The identification and estimation of the pharmacokinetic-pharmacodynamic variability involved in the response to a treatment are essential steps in this exploration to achieve precision medicine. We studied the re-introduction of β-blockers after cardiac surgery in a prospective multicentre cohort of patients receiving chronic β-blocker therapy and who underwent cardiac surgery. With a landmark analysis, we have shown the efficacy of reintroducing β-blockers 72 hours after cardiac surgery on the occurrence of atrial fibrillation. We modelled, using a population approach, the serum, erythrocyte and urine concentration data of once-daily sustained-release lithium in bipolar patients undergoing treatment for at least two years. A clinical research protocol was then written, with an optimization of sampling times, based on the pharmacokinetic model obtained, to characterise inter- and intra-individual variability and to identify predictive factors of the prophylactic response to lithium. We evaluated, by simulation, the impact of the crossover versus parallel design, as well as the choice of statistical model during the analysis, in pharmacogenetic studies evaluating two treatments (candidate and reference) when a genetic polymorphism increases or not the efficacy of the candidate treatment compared to the reference. The results of this simulation study show that the choice of the model and the choice of the experimental design strongly affect not only the type I error and the power to detect a gene-treatment interaction, but also the correct allocation of the treatment. This work reinforces the need to use adequate statistical tools and experimental designs in the analysis of a clinical trial or pharmacoepidemiological study to characterize and quantify the variability of the pharmacological response
Wang, Yunli. "Etude expérimentale et numérique des oscillations hydrodynamiques en milieux poreux partiellement saturés." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0127/document.
Full textThis thesis aims at investigating experimentally, analytically and numerically, the consequences of hydrodynamic variations and oscillations with high temporal variability in partially saturated porous media. The problems investigated in this work involve “free surfaces” both outside and inside the porous media, the free surface being defined as the “atmospheric” water pressure isosurface (Pwater = Patm). The laboratory experiments studied in this work are, respectively: Lateral imbibition in a dry sand box with significant capillary effects; Transmission of oscillations of the free surface through a vertical sand box placed in a small wave canal (IMFT, Toulouse); Dynamics of free surface oscillations and wave propagation in a large wave canal (HYDRALAB, Barcelona), partially covered with sand, with measurements of both open water and groundwater levels, and of sand topography (erosion / deposition). For theoretical studies, we have developed linearized analytical solutions. Here is a sample problem that was treated analytically in this work: The linearized equation of Dupuit-Boussinesq (DB) for transient free surface flow, assuming horizontal flow and instantaneous wetting/drainage of the unsaturated zone: forced oscillations, wave transmission and dissipation through a rectangular sandbox. We also developed a weakly nonlinear solution of the Dupuit-Boussinesq equation to study the sudden imbibition (temporal monitoring of the wetting front). We have studied the different types of transient flow problems related to the experiments cited above by numerical simulation. In particular, we have simulated unsaturated or partially saturated transient flows in vertical cross-section, using a computer code (BIGFLOW 3D) which solves a generalized version of Richards’ equation. Thus, using the Richards / BIGFLOW 3D model, we have studied numerically the experiment of unsaturated imbibition in a dry sand (IMFT sandbox), and then, with the same model, we have also studied the partially saturated wave propagation experiment in the large Barcelona wave canal (HYDRALAB laboratory), focusing on the sloping sandy beach, with coupling between the micro-porous zone (sand) and the “macro-porous” zone (open water). To interpret the results of the latter experiment and compare them to simulations, we use several methods of signal analyzis and signal processing, such as: Fourier analysis, discrete multi-resolution wavelets (Daubechies), auto and cross-correlation functions. These methods are combined with pre-filtering methods to estimate trends and residuals (moving averages; discrete wavelet analyses). This signal analyzis has allowed us to interpret and quantify water propagation phenomena through a sandy beach. To sum up, different modeling approaches, combined with model calibration procedures, were applied to transient nonlinear coupled flow problems. These approaches have allowed us to reproduce globally the water content distributions and water level propagation in the different configurations studied in this work
Antunes, José. "Contribution à l'étude des vibrations de faisceaux de tubes en écoulement transversal." Paris 6, 1986. http://www.theses.fr/1986PA066215.
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