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Academic literature on the topic 'Détection d'eau'
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Journal articles on the topic "Détection d'eau"
Djamba, Kalema Josue, and Baraka Ntawanga Irene. "INTEGRATION D'UNE APPLICATION MOBILE AU SYSTEME DE REGULATION DU NIVEAU D'EAU D'UN RESERVOIR." British Journal of Multidisciplinary and Advanced Studies 5, no. 1 (January 8, 2024): 8–22. http://dx.doi.org/10.37745/bjmas.2022.0388.
Full textStumpf, André, Emmanuel Augereau, Julien Bonnier, Christophe Delacourt, and Eric Delcher. "Mesure des débits par photogrammétrie adaptée aux rivières torrentielles." La Houille Blanche, no. 5-6 (October 2018): 66–74. http://dx.doi.org/10.1051/lhb/2018053.
Full textDia, Mamadou Lamine, N. Van Meirvenne, E. Magnus, Antony George Luckins, C. Diop, A. Thiam, Philippe Jacquiet, and R. Hamers. "Evaluation de quatre tests de diagnostic : frottis sanguins, CATT, IFI et ELISA-Ag dans l'étude de l'épidémiologie de la trypanosomose cameline à T. evansi en Mauritanie." Revue d’élevage et de médecine vétérinaire des pays tropicaux 50, no. 1 (January 1, 1997): 29–36. http://dx.doi.org/10.19182/remvt.9598.
Full textDemargne, Julie, Pierre Javelle, Didier Organde, Léa Garandeau, and Bruno Janet. "Intégration des prévisions immédiates de pluie à haute-résolution pour une meilleure anticipation des crues soudaines." La Houille Blanche, no. 3-4 (October 2019): 13–21. http://dx.doi.org/10.1051/lhb/2019023.
Full textLe Curieux, F., S. Giller, D. Marzini, A. Brice, and F. Erb. "Utilisation de trois tests de génotoxicité pour l'étude de l'activité génotoxique de composés organohalogénés, d'acides fulviques chlorés et d'échantillons d'eau (non concentrés) en cours de traitement de potabilisation." Revue des sciences de l'eau 9, no. 1 (April 12, 2005): 75–95. http://dx.doi.org/10.7202/705243ar.
Full textHolub, Petr, and Tudor Dumitrescu. "Détection des cavités à l'aide de mesures électriques et du géoradar dans une galerie d'amenée d'eau." Journal of Applied Geophysics 31, no. 1-4 (February 1994): 185–95. http://dx.doi.org/10.1016/0926-9851(94)90057-4.
Full textOudra, B., M. Loudiki, B. Sabour, B. Sbiyyaa, and V. Vasconcelos. "Étude des blooms toxiques à cyanobactéries dans trois lacs réservoirs du Maroc : résultats préliminaires." Revue des sciences de l'eau 15, no. 1 (April 12, 2005): 301–13. http://dx.doi.org/10.7202/705454ar.
Full textGaléa, G., B. Vasquez-Paulus, B. Renard, and P. Breil. "L'impact des prélèvements d'eau pour l'irrigation sur les régimes hydrologiques des sous-bassins du Tescou et de la Séoune (bassin Adour-Garonne, France)." Revue des sciences de l'eau 18, no. 3 (April 12, 2005): 273–305. http://dx.doi.org/10.7202/705560ar.
Full textKoudjonou, B. K., J. P. Croué, and B. Legube. "Formation des ions bromate lors de l'ozonation des ions bromures en présence de la matière organique." Revue des sciences de l'eau 9, no. 2 (April 12, 2005): 231–45. http://dx.doi.org/10.7202/705251ar.
Full textDrozd, C., M. C. Bonville, V. Lahoussine-Turcaud, and J. Schwartzbrod. "Méthodes de détection de Cryptosporidium dans l'eau : Revue et application à l'analyse d'eaux usées au laboratoire." Journal français d’hydrologie 24, no. 2 (1993): 173–90. http://dx.doi.org/10.1051/water/19932402173.
Full textDissertations / Theses on the topic "Détection d'eau"
Fontaine, Mélanie. "Détection moléculaire du parasite Cryptosporidium dans des échantillons d'eau." Nantes, 2003. http://archive.bu.univ-nantes.fr/pollux/show.action?id=37b1f1ed-7c51-44e3-8fb8-8e3bfda369d6.
Full textThe protozoan parasite Cryptosporidium is known to occur widely in both raw and drinking water and is the cause of water-borne outbreaks of gastroenteritis throughout the world. The routinely used method for the detection of Cryptosporidium oocysts in water is based on an immunofluorescence assay which is non-specific for the human pathogenic species, C. Parvum. We have developed a TaqMan PCR test that accurately quantifies C. Parvum oocysts in water samples. The protocol consisted of the following successive steps: Envirochek® capsule filtration, immunomagnetic-separation (IMS), thermal lysis followed by DNA purification and finally real-time PCR using TaqMan technology. Quantification was accomplished by comparing the fluorescence signals obtained from test samples with those from standard dilutions of C. Parvum oocysts. This IMS-TaqMan PCR assay permits rapid and reliable quantification over six orders of magnitude, with a quantification limit of 5 oocysts. Replicate samples of spiked tap water and Seine river water samples were tested and oocyst recoveries were range respectively from 69,7 % (± 22,3) to 84,5 % (± 9,7) and from 46,4 % (± 7,3) to 57,6 % (± 10,7). We also report on a TaqMan reverse transcription-PCR method that targets and quantifies C. Parvum 18S rRNA for detecting viable oocysts in water. This test performed in water samples obtained similar recoveries. To study the suitability of 18S rRNA as an indicator of Cryptosporidium oocysts viability, the stability of 18S rRNA and rDNA was monitored by real-time RT-PCR following various heat treatments. Our results indicate that 18S rRNA detection may not be directly associated with viability following heat inactivation of oocysts even if in all the experiments 18S rRNA was less stable than rDNA. These new molecular methods offer a rapid, sensitive and specific alternative for C. Parvum oocyst quantification in water and can be useful for better health risk assessment during routine controls of drinking water quality, evaluation of treatment efficiency as well as identification of risk resources
Guépié, Blaise Kévin. "Détection séquentielle de signaux transitoires : application à la surveillance d'un réseau d'eau potable." Troyes, 2013. http://www.theses.fr/2013TROY0004.
Full textThis thesis is part of the project "Vigires'eau" funded by the French National Research Agency program through the Concepts, Systems and Tools for Global Security (ANRCSOSG, ANR-08-SECU-013-02). It addresses the problem of sequentially detecting a transient signal in safety-critical systems. For these systems, the detection of a change has to be made, on the one hand, with a detection delay less than a prescribed value, and on the other hand, with the minimal probability of nondetection under constraint on the probability of false alarm. The optimality criteria and algorithms found in the literature are not suitable for this kind of detection. We propose in this thesis a new optimality criterion which aims to minimize the worst probability of missed detection under constraint on the worst probability of false alarm. To solve the detection problem according to the new optimality criterion, we introduce a detection algorithm called Variable Thresholds Window Limited CUSUM. After analyzing the statistical performance of this algorithm, we proceed to the optimization of the latter. The algorithm is then applied to a concrete case which is the monitoring of a drinking water distribution system. Such monitoring is critical in the sense that any contamination, whether accidental or intentional, causes a public health problem
Fitzback, Josée. "Détection des cours d'eau par images radar selon les stratégies de la vision humaine." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0006/MQ41900.pdf.
Full textBissery, Christophe. "La détection centralisée des fuites sur les réseaux d'eau potable par réseaux de neurones." Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0112.
Full textFor few years, under the influence of the urban environment, the perception of dysfunction risk in technical systems and in particular in water supply networks has changed. The lack of risk doesn't exist and it's necessary to learn how to manage it. It's in this way that appears the need of centralized leakage detection on water supply networks, leaks that represent an important part of the dysfunction risk of water supply. This study proposes a centralized leakage detection system using a computerized neural network approach. The building method of learning bases and the sensors localization method are pointed out and developed. This study has showed that on a realistic network model results obtained with the centralized leakage detection system using a computerized neural network approach allowed experimentations on real networks. The study ends on the presentation of the working priorities for these real experimentations (and in particular the need of hourly water consumption previsions)
Gondrand, Cécile. "Analyse des transferts d'eau dans les micropiles à combustible." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7543/1/gondrand.pdf.
Full textLeyli, Abadi Milad. "Modélisation dynamique, classification et détection de changement dans les panels catégoriels issus d'un réseau d'eau intelligent." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2003.
Full textNowadays, we observe a growing concern raised by the environmental issues and those related to management of the resources as electricity and water. As part of a collaborative project with Veolia Eau d'Île-de-France and le syndicat des eaux d'Île-de-France, this PhD research addresses initially the clustering of water consumers based on their consumption behavior dynamics over time. These dynamics, in each cluster, depend on a number of exogenous factors. To model this joint density, non-homogeneous Markov models are investigated as the components of a mixture model. Hence, the estimation of the parameters in each cluster allows to predict the future consumption behaviors independently. Afterwards, the problem of online structural change detection in a set of consumption behavior sequences is addressed. To this end, a sequential hypothesis testing of generalized likelihood ratio, based on a non-homogeneous Markov model is proposed. An adaptive threshold is also used which can be adjusted throughout the various types of changes and may reduce the number of false alarms. The results on a real dataset which is issued from a water network allow to highlight the effectiveness of the proposed methods both in terms of clustering and change detection. Finally, the analysis of the estimated parameters of both models allows to study the influence of exogenous factors on clustering and detected changes
Yaradou, Diaraf Farba. "Legionella pneumophila : de la détection dans les réseaux d'eau à l'étude de l'invasion des cellules épithéliales pulmonaires humaines." Lyon 1, 2007. http://www.theses.fr/2007LYO10174.
Full textJacob, Paul. "Détection et compréhension des mécanismes de mouillage en distillation membranaire sous vide appliquée au dessalement d'eau de mer." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0036.
Full textWith an ever-increasing population and the growing disparity in potable water resource, humanity has turned its attention to the oceans for its potable water needs. To overcome the current limitations in current desalination technologies, membrane distillation (MD) is actively being developed. The interest of MD for seawater desalination was established in the last decades but today the risk of membrane wetting is one of the major barrier for industrial implementation of MD. Under the framework of the ANR project “WETMEM”, the issue of this thesis was to develop tools for better understanding wetting mechanisms in vacuum membrane distillation. Several fabricated (WETMEM partners) and commercial membranes were studied to understand the influences of membrane properties on wettability. Therefore, a definition and classification on wetting were formulated. After that two wetting indicators were developed using scanning electron microscopy and X-ray dispersion spectroscopy under a method called “Detection of Dissolved Tracer Intrusion”. A proof of concept was provided with various wetting mechanisms visualized and interpreted. These ex-situ indicators were used with wettability tools (Contact Angle, Liquid Entry Pressure) to understand the influence of temperature (35-50°C), salinity (22-310 g/L NaCl sol.) and flow rate (400 – 4000 Re) on wetting and wettability of a PVDF membrane under vacuum membrane distillation. Indeed, it was found that salinity has a greater impact on wetting than the other operating parameters. Additionally, a proof of concept was provided for non-invasive in-situ optical method for visualizing wetting in membrane distillation. Progression of in-situ wetting visualization was validated at different scales for various saline solutions and seawaters
Rouleau, Jean François. "Développement d'une méthode micro-onde différentielle pour la détection de faibles quantités de vapeur d'eau dans l'hexafluorure de soufre (SF6)." Thèse, Université du Québec à Trois-Rivières, 2000. http://depot-e.uqtr.ca/6641/1/000681091.pdf.
Full textRenard, Benjamin. "Détection et prise en compte d'éventuels impacts du changement climatique sur les extrêmes hydrologiques en France." Grenoble INPG, 2006. http://www.theses.fr/2006INPG0095.
Full textClimate change is widely considered as a reality by scientists. Nevertheless, impacts on hydrological extremes are more difficult to observe and to predict. The aim of this thesis is to answer the following questions: How to detect changes in hydro-climatic series? What are the observed changes for extreme discharges in France? How to take into account possible changes in frequency analysis? These objectives refer to both the local and the regional scales. For this purpose, methodological aspects have been explored, by evaluating the benefit ofusing statistical tools like the Bayesian analysis or the use of copulas as a model for spatial dependence