Добірка наукової літератури з теми "Dispositif d'échantillonnage"
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Статті в журналах з теми "Dispositif d'échantillonnage":
Kaboré, Sibiry Albert, Brigitte Bastide, Salifou Traoré, and Joseph Issaka Boussim. "Dynamique du karité, Vitellaria paradoxa, dans les systèmes agraires du Burkina Faso." BOIS & FORETS DES TROPIQUES 313, no. 313 (September 1, 2012): 47. http://dx.doi.org/10.19182/bft2012.313.a20496.
Tra Jeannot, Tra Bi, Kouassi Kouadio Henri, and Keulai Minty Celestin. "Evaluation de l’Impact des Activités Anthropiques Sur la Séqustration de Carbone dans le Parc National Du Mont Sangbé, en Côte d‘Ivoire." European Scientific Journal, ESJ 19, no. 6 (February 28, 2023): 367. http://dx.doi.org/10.19044/esj.2023.v19n6p367.
Tra Bi Tra, Jeanot. "Evaluation de l’Impact des Activités Anthropiques sur la Séquestration de Carbone dans la Parc National du Mont Sangbé, en Côte d’Ivore." European Scientific Journal ESJ 1 (January 11, 2023). http://dx.doi.org/10.19044/esipreprint.1.2023.p1.
Дисертації з теми "Dispositif d'échantillonnage":
Gerbe, Vincent. "Etude et réalisation d'un dispositif optoélectronique d'échantillonnage pour l'analyse d'impulsions brèves et uniques." Grenoble 1, 1993. http://www.theses.fr/1993GRE10110.
Akiki, Maria. "Identification et quantification des concentrations en espèces gazeuses à l’état de trace dans l’air exhalé des patients hémodialysés : enjeux technologiques et perspectives d’utilisations cliniques." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2022. http://www.theses.fr/2022MTLD0014.
Chronic kidney disease is characterized by a progressive decline in kidney function. It is clinically silent until an advanced stage. At the final stage of this pathology (end-stage chronic renal failure), it is necessary to perform a renal replacement therapy by dialysis, or a renal transplant. The detection of this pathology is done by blood and urine tests. However, this detection remains insufficiently, and chronic kidney disease is often discovered too late. To improve the acceptability of an early detection by non-invasive methods, it is interesting to approach the techniques for analysis of volatile organic compounds (VOC) in exhaled air. As a preliminary to this approach, this thesis reports first the analysis of a physico-chemical VOC appropriate to CKD population at dialysis stage. The characterization of exhaled air at the beginning and at the end of dialysis was done by sampling it with 43 hemodialysis patients. For this, we used a sampling device ReCIVA and then an analysis of exhaled air by a TD/GC/FID-MS method. The results presented that 23 VOC from different chemical families have varying concentrations in exhaled air of dialysis patients between the beginning and end of the same dialysis session. Nine of these 23 VOC are probably exogenous origin emitted by dialysis equipment. Other VOC are probably endogenous emitted into exhaled air. The second part of this thesis concerns the qualification of a sampling device developed within IMT NE which is based on the sampling of exhaled air by allowing the selection of the different respiratory phases and the collection of exhaled air on a multiplicity of characterization techniques (collection support, online analyses). The purpose of this work was to verify the chemical inertness of this device before deploying it to patients. First, the characterization of the non-contamination potential made it possible to identify 4 VOC at concentrations between 5 and 80 µg/m3 and 2 others VOC (N.N-dimethylacetamide and phenol) between 100 and 700 µg/m3. Conditioning the material constituting the device in an oven reduced the emissions of these species very significantly (> 90 %). In addition, the non-retention parameter was quantified: 9 VOC presented a difference in their concentrations of less than 15 %. However, for acetone, a loss of 25 % was quantified in the mask, which will need to be reduced or considered during sampling. Finally, storage in collection bags allowed to conclude a stability of 9 VOC tested (difference < 13%) for one week. In contrast, two species (acetone and ammonia) revealed losses. In view of these results, it was suggested to store the sample for a maximum of two hours to limit the loss of these species to 20 %, or at the latest 2 days considering a loss of 36 % for ammonia
Camsonne, A. "Dispositif expérimental pour la diffusion Compton virtuelle dans le régime profondément inélastique dans le Hall A au Jefferson Laboratory." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2005. http://tel.archives-ouvertes.fr/tel-00683591.
Plaisance, Hervé. "Étude de la composition chimique des précipitations en France à partir du réseau de MEsures des Retombées Atmosphériques MERA." Compiègne, 1996. http://www.theses.fr/1996COMPD939.