Добірка наукової літератури з теми "Teneur d'eau"
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Статті в журналах з теми "Teneur d'eau":
Daghari, H., and L. DeBacker. "Transfert d'eau dans un milieu poreux non isotherme." Revue des sciences de l'eau 13, no. 1 (April 12, 2005): 75–84. http://dx.doi.org/10.7202/705382ar.
Millet, A., T. Bariac, C. Grimaldi, and J. Boulègue. "Signature isotopique et chimique des précipitations (pluies et pluviolessivats) en Guyane française." Revue des sciences de l'eau 12, no. 4 (April 12, 2005): 729–51. http://dx.doi.org/10.7202/705375ar.
Hubert, P., P. Olive, and S. Ravailleau. "Estimation pratique de l'âge des eaux souterraines par le tritium." Revue des sciences de l'eau 9, no. 4 (April 12, 2005): 523–33. http://dx.doi.org/10.7202/705265ar.
Roth, E., B. Fabre, A. Accary, and B. Faller. "Étude du colmatage de membranes d'osmose inverse utilisées pour la préparation des eaux de dialyse rénale." Revue des sciences de l'eau 11, no. 3 (April 12, 2005): 409–28. http://dx.doi.org/10.7202/705314ar.
Jusserand, C., A. W. el S. Ibrahim, O. Guelorget, and J. P. Perthuisot. "Teneurs en 18O et concentration saline d'eaux paraliques et continentales égyptiennes." Revue des sciences de l'eau 1, no. 3 (April 12, 2005): 277–301. http://dx.doi.org/10.7202/705013ar.
Bazer-Bachi, A., E. Puech-Coste, R. Ben Aim, and J. L. Probst. "Modélisation mathématique du taux de coagulant dans une station de traitement d'eau." Revue des sciences de l'eau 3, no. 4 (April 12, 2005): 377–97. http://dx.doi.org/10.7202/705081ar.
Vergez, M. "Principales caractéristiques de la teneur en vapeur d'eau au-dessus de la couche limite planétaire." Atmospheric Research 21, no. 2 (October 1987): 171–79. http://dx.doi.org/10.1016/0169-8095(87)90006-8.
Chatonnet, Pascal, Jean-Noël Boidron, Denis Dubourdieu, and Alexandre Pons. "Evolution des composés polyphénoliques du bois de chêne au cours de son séchage. Premiers résultats." OENO One 28, no. 4 (December 31, 1994): 337. http://dx.doi.org/10.20870/oeno-one.1994.28.4.1135.
Lortie, Guy, and Jean-Claude Dionne. "Analyse préliminaire des diatomées de la coupe de Montmagny, côte sud de l’estuaire du Saint-Laurent, Québec." Géographie physique et Quaternaire 44, no. 1 (December 18, 2007): 89–95. http://dx.doi.org/10.7202/032801ar.
Marjoua, A., P. Olive, and C. Jusserand. "Apports des outils chiniques et isotopiques à l'identification des origines de la salinisation des eaux : Cas de la nappe de La Chaouia côtière (Maroc)." Revue des sciences de l'eau 10, no. 4 (April 12, 2005): 489–505. http://dx.doi.org/10.7202/705290ar.
Дисертації з теми "Teneur d'eau":
Van, Hullebusch Eric. "Contribution à l'étude du devenir, de la mobilité et de l'impact de métaux utilisés pour le traitement de plans d'eau eutrophes : cas de l'aluminium et du cuivre." Limoges, 2002. http://www.theses.fr/2002LIMO0016.
Eichinger, Marie. "Dégradation bactérienne du carbone organique dissous dans la colonne d'eau : une approche couplée expérimentation - modélisation." Aix-Marseille 2, 2007. http://theses.univ-amu.fr.lama.univ-amu.fr/2007AIX22098.pdf.
This thesis aims to utilise both experimental and modelling approaches to investigate growth of pelagic heterotrophic bacteria that utilise dissolved organic carbon (DOC) as nutritive resource. Two main axes merge from this work: (1) the study of growth models, constructed from experimental results, with a view to implement them in ecosystem models, and (2) the investigation of the environmental factors influencing the bacterial growth efficiency (BGE) with these models. The main objective consists of the study of bacterial growth in different environmental contexts and to deduce a suitable mathematical formulation for describing the interaction between growth and DOC to include this in a biogeochemical model later on. Firstly, bacterial production and respiration data, obtained during the POMME program that carried out in the Northeast Atlantic Ocean according to several depths and seasons, allowed the application of the Monod model that uses Michaelis-Menten kinetics. The coupled study of the model with data permitted to show that BGE varies according to depth and season. BGE has been estimated experimentally directly from data but also with the model, as BGE is one of the parameter. We have thus highlighted that this model, often utilised in biogeochemical models to represent bacterial growth, is not sufficient. In order to use mechanistic models to describe bacterial growth, we decided to realise biodegradation experiments, in artificial and controlled medium, with a monospecific bacterial strain and a unique carbon substrate. Two kinds of experiments were realised: batch-kind experiments where all the carbon substrate was introduced since the beginning of the experiment, and experiments where the carbon substrate was periodically pulsed. The total amount of substrate put in both systems was the same. These experiments first allowed highlighting key processes: the refractory DOC production that accumulates in batches, the variation of the specific bacterial carbon content during an experiment, the maintenance process at the respiration level when bacteria are starved as well as the instantaneous response to an environmental perturbation. BGE have also been estimated for each experiment and according to different methods: experimentally directly from the data sets and from various models, each of them comprising a different level of complexity. Three models were utilised: the Monod model, the Marr-Pirt model and a mechanistic model resulting from the DEB (Dynamic Energy Budget) theory and specifically constructed for the pulse substrate experiment. We highlighted that what else the method used, BGE value is always higher for the pulse experiment than for the batch-kind experiment. BGE values were also always higher when the maintenance process was taken into account in their estimation. This would mean that BGE value is under-estimated with the classical method of estimation, i. E. With batch experiments and without considering the maintenance process. This would lead to the conclusion that the bacterial role as CO2 producer is over-estimated. The DEB model, highly complex for the representation of only one bacterial species and a unique substrate, was also simplified in view of its implementation in a biogeochemical model later on. We have demonstrated that the original system with 4 differential equations can be reduced to a system with 2 differential equations, where growth can be expressed by a logistic equation with a variable carrying capacity. The simplification of this model does not imply any loss of performance at the level of model dynamics and reduces the calibration and simulation time
Kengni, Lucas. "Mesure in-situ des pertes d'eau et d'azote sous culture de maïs irriguée : application à la plaine de la Bièvre (Isère)." Grenoble 1, 1993. http://www.theses.fr/1993GRE10067.
Kuppel, Sylvain. "Assimilation de mesures de flux turbulents d'eau et de carbone dans un modèle de la biosphère continentale." Versailles-St Quentin en Yvelines, 2012. http://www.theses.fr/2012VERS0041.
Assimilating terrestrial ecosystem data is an approach increasingly used to fill the gap between experimental observations and the ecophysiological theory as embodied in process-based land surface models. In this thesis, we have sought to use the information content of eddy covariance measurements of net carbon dioxide (NEE) and latent heat (LE) fluxes made at the sites of the FLUXNET global network, aiming at optimizing key parameters of the ORCHIDEE vegetation model and at refining the uncertainty budget. A Bayesian statistical approach has been chosen, so as to account for prior knowledge of the uncertainties related to the model parameters, the model equations, and the measurements. The major line of work has been to develop a data assimilation method where observations from several flux sites are simultaneously used as a constraint, in order to optimize a unique set of parameters considered as generic within a given class of ecosystem. We found that this multi-site approach significantly improves the model-data agreement at seasonal and annual time scales, with performances fairly similar to those brought by site-scaled, independently optimized parameters (single-site approach). We notably discuss the fact that the multi-site parameters’ values are not always a mere average of their single-site counterparts. Making use complementary data, we also evaluated the ability of the multi-site optimizations to improve the simulation of the gross carbon fluxes (photosynthesis and respiration) at the site scale, while at the global scale we considered the modeled phenology of the leaf cover and the seasonal cycle of the atmospheric CO2 concentration. Within our methodological developments, we have also proposed a technique to infer the statistical structure of the error stemming from inadequate and/or missing process representations in a global vegetation model such as ORCHIDEE. Focusing on net carbon fluxes, our results suggest that this « model error » deserves an explicit representation in the uncertainty budget inherent to carbon cycle modeling
Féray, Christine. "Nitrification en sédiment d'eau douce : incidence de rejets de station d'épuration sur la dynamique de communautés nitrifiantes." Lyon 1, 2000. http://www.theses.fr/2000LYO10058.
Despreaux, Marc. "Le phosphore et l'azote dans les sédiments du fleuve Charente (France) : variations saisonnières et mobilité potentielle." Lyon 1, 1990. http://www.theses.fr/1990LYO10007.
Ouedraogo, Francois. "Etude des transferts d'eau à l'interface sol-atmoshpère. Cas d'un sol du Burkina Faso à faible teneur en eau." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2008. http://tel.archives-ouvertes.fr/tel-00731139.
Ouedraogo, François. "Etude des transferts d'eau à l'interface sol-atmosphère : cas d'un sol du Burkina Faso à faible teneur en eau." Montpellier 2, 2008. http://www.theses.fr/2008MON20235.
The transfer of water at the soil-atmosphere interface is addressed through a thermo dynamical approach which constitutes a general framework for describing both the thermodynamical status of the water in the soil and the transfer mechanisms at stake: liquid phase filtration, water vapor diffusion, liquid-vapor phase change. An experimental characterization of a soil has been carried out and completed with bibliographical data. Experimental tests of water transfer in columns of the same soil, placed in drying atmosphere enabled the establishment of the global kinetic of water loss and the evolution of the profiles of the water content through time. A numerical simulation of the water transfer in the neighborhood of the interface is proposed. A study about the sensitiveness to the physical parameters of the soil is presented. The results of the numerical model are then compared with the tests of the transfer on the columns. The correspondence is good on the basis of an adjustment of the hydrologic parameters as mentioned in the literature. Water and vapor fluxes evolutions in low water content soils allow the description of transfer mechanisms near the interface. It is shown that the phase change which ensures the continuity of the transfers between the soil and the atmosphere relates to a few centimeters of the soil under that interface
Humbert, Hugues. "Etude de la sorption des matières organiques naturelles par les résines échangeuses d'ions : intérêt pour la production d'eau potable." Poitiers, 2006. http://www.theses.fr/2006POIT2256.
Natural Organic Matter (NOM) represents through Total Organic Carbon (TOC) a key parameter for the control of drinking water quality. The first objective of this study was to evaluate the efficacy of the Anion Exchange Resin (AER) MIEX® and different other AER for the elimination of Dissolved Organic Carbon (DOC) from a high DOC content surface water. The performances of these AER were compared with those of coagulation/flocculation at laboratory scale as well as pilot scale. The second objective of this study was to determine the impact of AER treatment on the reduction of competition mechanisms between NOM and pesticides for the adsorption on activated carbon and on the reduction of membrane fouling (ultrafiltration). Various analytical tools (fluorescence spectroscopy, size exclusion chromatography, pyrolysis GC/MS (gas chromatography/mass spectrometry)) were used in order to characterize NOM of raw and treated waters. As well as MIEX® resin, whole studied AER proved to be an interesting alternative to coagulation/flocculation for DOC removal. Moreover, the interest of AER lies in its combination with activated carbon for the reduction of competition mechanisms between NOM and pesticides
Bourget, Sébastien. "Limnologie et charge en phosphore d'un réservoir d'eau potable sujet à des fleurs d'eau de cyanobactéries : le lac St-Charles, Québec." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28078/28078.pdf.
Книги з теми "Teneur d'eau":
Cantor, Abigail. Water distribution system monitoring: A practical approach for evaluating drinking water. Boca Raton: Taylor & Francis, 2009.
Hayes, Colin. Best practice guide on the control of lead in drinking water. London: IWA Pub., 2010.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality, Second Edition. Taylor & Francis Group, 2018.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality. Taylor & Francis Group, 2009.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking WaterQuality, Second Edition. Taylor & Francis Group, 2018.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking WaterQuality, Second Edition. Taylor & Francis Group, 2018.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality. Taylor & Francis Group, 2017.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality, Second Edition. Taylor & Francis Group, 2018.
Cantor, Abigail F. Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality, Second Edition. Taylor & Francis Group, 2018.
Funk, J., C. R. Hayes, T. N. Croft, Corine Houtman, and Ron van der Oost. Optimisation of Corrosion Control for Lead in Drinking Water Using Computational Modelling Techniques. IWA Publishing, 2013.