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Academic literature on the topic 'Analyse de courbes de percée dynamique'
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Journal articles on the topic "Analyse de courbes de percée dynamique"
Sahel,, M., and O. Ferrandon-Dusart. "Adsorption dynamique en phase liquide sur charbon actif : comparaison et simplification de différents modèles." Revue des sciences de l'eau 6, no. 1 (April 12, 2005): 63–80. http://dx.doi.org/10.7202/705166ar.
Full textYahiaoui, Abdelhalim, Bénina Touaïbia, Christophe Bouvier, and Noureddine Dechemi. "Modélisation du régime de crue en Débit – durée – Fréquence du bassin de l’oued Mekerra dans l’ouest Algérien." Revue des sciences de l’eau 24, no. 2 (October 4, 2011): 103–15. http://dx.doi.org/10.7202/1006105ar.
Full textEasingwood, Christopher J., Vijay Mahajan, and Eitan Muller. "Un modèle de diffusion des produits nouveaux intégrant un effet d'imitation variable." Recherche et Applications en Marketing (French Edition) 2, no. 3 (September 1987): 17–33. http://dx.doi.org/10.1177/076737018700200302.
Full textAmboulé-Abath, Anastasie. "Des enjeux de genre à la (re)féminisation de la gouvernance scolaire au Québec : une dynamique d’égalisation de rattrapage ou de dévalorisation?" Revue organisations & territoires 30, no. 3 (February 11, 2022): 107–19. http://dx.doi.org/10.1522/revueot.v30n3.1385.
Full textDissertations / Theses on the topic "Analyse de courbes de percée dynamique"
Al, Atrach Jaouad. "Advanced design οf zeοlitic materials fοr the adsοrptiοn/separatiοn οf CΟ2, Ν2, and CΗ4 mοlecules." Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMC234.
Full textThis thesis is dedicated to optimizing small-pore zeolite materials for efficient CO2 adsorption andgas separation. The work focuses on improving zeolite performance through cation exchange,crystal size control, and the synthesis of novel adsorbents. Mg-exchanged Gismondine (GIS)zeolites were synthesized, demonstrating enhanced CO2/N2 and CO2/CH4 selectivities due to partialcation exchange with Mg2+, which influenced the framework distortion and improved bothadsorption capacity and selectivity, underscoring their potential for practical carbon captureapplications. A seed-assisted synthesis method was also employed to develop nanosized zeolite P(GIS), which significantly improved CO2 adsorption kinetics by reducing diffusion limitations,with faster diffusion resulting from an intracrystalline diffusion mechanism. This superior diffusionwithin the nanosized zeolites led to enhanced performance in dynamic gas separation compared totheir micron-sized counterparts. The thesis also introduces Levyne (LEV) zeolites as novelcandidates for CO2 adsorption, where careful control of the Si/Al ratio and the use of nanosizedseeds allowed for precise tuning of adsorption properties. The study highlights the critical role ofthe Si/Al ratio in optimizing CO2 selectivity, uptake, and adsorption−desorption behaviour,establishing LEV as a promising material for gas separation. These findings demonstrate howtailored synthesis methods, cation exchange optimization, crystal size control, and Si/Al ratioadjustment can significantly enhance the performance of zeolite-based materials in carbon captureand energy-efficient gas separation technologies
Alquier, Laurent. "Analyse et représentation de scènes complexes par groupement perceptuel : Application à la perception de structures curvilignes." Montpellier 2, 1998. http://www.theses.fr/1998MON20137.
Full textChamroukhi, Faicel. "Hidden process regression for curve modeling, classification and tracking." Compiègne, 2010. http://www.theses.fr/2010COMP1911.
Full textThis research addresses the problem of diagnosis and monitoring for predictive maintenance of the railway infrastructure. In particular, the switch mechanism is a vital organ because its operating state directly impacts the overall safety of the railway system and its proper functioning is required for the full availability of the transportation system; monitoring it is a key task within maintenance team actions. To monitor and diagnose the switch mechanism, the main available data are curves of electric power acquired during several switch operations. This study therefore focuses on modeling curve-valued or functional data presenting regime changes. In this thesis we propose new probabilistic generative machine learning methodologies for curve modeling, classification, clustering and tracking. First, the models we propose for a single curve or independent sets of curves are based on specific regression models incorporating a flexible hidden process. They are able to capture non-stationary (dynamic) behavior within the curves and address the problem of missing information regarding the underlying regimes, and the problem of complex shaped classes. We then propose dynamic models for learning from curve sequences to make decision and prediction over time. The developed approaches rely on autoregressive dynamic models governed by hidden processes. The learning of the models is performed in both a batch mode (in which the curves are stored in advance) and an online mode as the learning proceeds (in which the curves are analyzed one at a time). The obtained results on both simulated curves and the real world switch operation curves demonstrate the practical use of the ideas introduced in this thesis
Woo, Sahng Hyuck. "Membranes composites acide perfluorosulfonique (PFSA)/argile pour un fonctionnement à faible humidité relative et haute température des piles à combustible à membrane échangeuse de protons (PEMFC)." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM033.
Full textThis thesis introduces novel electrolyte membranes which can be operated at low relative humidity (below 50%) and intermediate temperature, i.e., 90℃. More specifically, the thesis takes benefit from hygroscopicity of microfibrous SEP (sepiolite) and tubular HNT (halloysite). Changes in Nafion membrane properties with blending time were studied. Moreover, these nanoclays are functionalized and pretreated to make them proton conductive and to improve their compatibility with short-side-chain PFSA (perfluorosulfonic acid) composite membranes based on Aquivion. To begin with, functionalized and pretreated clay nanoparticles are characterized prior to incorporation in polymer matrix: ATR-FTIR (attenuated total reflection-fourier transform infrared spectroscopy), Py-GC/MS (pyrolysis gas chromatography mass spectrometry), and TGA (thermogravimetric analysis). Composites membranes have them been prepared and characterized for proton conductivity, water uptake, swelling, thermo-mechanical strength and chemical stability. The dispersion state of SEP and HNT inside polymer phase was observed using SEM/EDS (field emission scanning electron microscopy/Energy dispersive X-ray spectroscopy). The properties of pretreated nanoclays are characterized using XRD (X-ray diffraction) and EDS. Chemical stability regarding radical attack against composite membranes is clarified using Ion meter through fluoride ion (F-) analysis. Proton conductivity of composite membranes is also measured under condition of different relative humidity and temperature. Following this, it is demonstrated by DMA (dynamic mechanical analysis) results that the particular elongated morphology of SEPs and HNTs participates to improving mechanical property of the composite membranes with decreased swelling ratio. MEAs (membrane electrode assembly) performance are evaluated to understand the advantage of the presence of nanoclays in the composite membranes regarding the relative humidity of the feeding gas, the operating temperature of the cell, and the hydrogen crossover. Detailed abstracts including main results were provided at the beginning of each chapter
Books on the topic "Analyse de courbes de percée dynamique"
Nackoney, Janet, Jena Hickey, David Williams, Charly Facheux, Takeshi Furuichi, and Jef Dupain. Geospatial information informs bonobo conservation efforts. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198728511.003.0017.
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