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Статті в журналах з теми "Précurseurs de NOx"
Gaudel, Audrey, Owen R. Cooper, Kai-Lan Chang, Claire Granier, Valérie Thouret, Philippe Nédélec, Romain Blot, et al. "Augmentation d'ozone troposphérique dans l'hémisphère Nord observée grâce aux mesures Iagos." La Météorologie, no. 116 (2022): 017. http://dx.doi.org/10.37053/lameteorologie-2022-0010.
Повний текст джерелаДисертації з теми "Précurseurs de NOx"
Bertus, Thomas. "Devenir de l'azote lors de la combustion de biomasse dans le lit d'une chaudière à grille." Electronic Thesis or Diss., Ecole nationale des Mines d'Albi-Carmaux, 2024. http://www.theses.fr/2024EMAC0013.
Повний текст джерелаBiomass combustion in industrial-scale biomass grate-fired boilers produces several types of pollutants, including nitrogen oxides. These species, also known as NOx, are harmful to the environment because they cause acid rain and are greenhouse gases. These pollutants are mostly formed by the oxidation of the nitrogen that was initially present in the biomass. NOx emissions are a primary concern for biomass boiler manufacturers. Modeling is a great help in reducing NOx emissions. The gas phase chemistry of nitrogen is well known so gas phase reactions involving NOx species above the bed are not a problem. However, the chemistry governing the heterogeneous combustion of the fuel bed remains poorly understood. In particular, the nature of the nitrogen gases exiting the bed is not accurately predicted. The objective of this work is to provide a bed model capable of predicting the gas phase composition at the exit of the bed, with a particular focus on nitrogen species. To this end, a bed model was developed using MATLAB. This model is based on the BASIC model developed by the University of Aalborg. This is a 1D Euler-Euler bed that employs the walking column approach to simulate a biomass grate-fired boiler bed. Two significant modifications were made to the model: the incorporation of thermal non-equilibrium and the inclusion of nitrogen chemistry. To validate the model, experiments were conducted in a cross-fired fixed bed reactor. An existing experimental device was adapted to enable the quantification of nitrogen in all products. Three series of experiments were conducted. The first series compared the fate of nitrogen of three agrofuels during the pyrolysis and combustion. The second series investigated the influence of particle size and temperature on the fate of nitrogen during particleboard combustion and pyrolysis. The third series focused on the influence of chemical treatment on NOx emissions for three chemically treated particleboards. The results obtained with the experimental setup allowed us to fix some kinetic data for the model. This model represents a first step towards the prediction of nitrogen gas production in a biomass bed
Bey, Isabelle. "Contribution des processus nocturnes a la chimie troposphérique : modélisation des flux de radicaux et transformation des précurseurs d'ozone (COV, NOx)." Paris 12, 1997. http://www.theses.fr/1997PA120017.
Повний текст джерелаLe, Dréau Gwenvaël. "NOV/CCN3 et système nerveux central : étude du rôle de NOV/CCN3 dans les précurseurs de neurones granulaires et des astrocytes." Paris 6, 2008. http://www.theses.fr/2008PA066063.
Повний текст джерелаDuckert, Jean-Frédéric. "Synthèses de mimes non peptidiques du glutathion, précurseurs d'analogues du leucotriène C4." Montpellier 2, 2002. http://www.theses.fr/2002MON20037.
Повний текст джерелаLoureiro, Morais Latino. "Synthèse de thiooligosaccharides, précurseurs d'analogues de facteurs de nodulation." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2004. http://tel.archives-ouvertes.fr/tel-00662408.
Повний текст джерелаMaldonado, Rojas Paloma P. "Communication synaptique et non-synaptique entre neurones et cellules précurseurs d’oligodendrocytes dans le cortex somatosensoriel." Thesis, Paris 5, 2013. http://www.theses.fr/2013PA05T064/document.
Повний текст джерелаOligodendrocyte precursor cells (OPCs) are the main source of myelinating oligodendrocytes during postnatal development. These progenitors, identified by the expression of the proteoglycan NG2, are extremely abundant before myelination, but also persist in the mature brain. Similarly to other non-neuronal cells they express a wide range of ionic and ligand-gated ion channels. However, they are unique by their ability to receive truly glutamatergic and GABAergic synaptic contacts from neurons. During this thesis, we characterized the electrophysiological properties of OPCs during the postnatal development of the mouse somatosensory cortex (post postnatal month). By performing patch-clamp recordings, single-cell RT-PCR analyses and pharmacological approaches, we found that outwardly rectifying I-V curves become linear during development, as the result of an upregulation of Kir4.1 potassium channels. Endowed with these channels, adult OPCs are able to sense local extracellular potassium increases generated by neuronal activity. This developmental upregulation of Kir4.1 channels in OPCs revealed that these cells gain physiological properties during development, conferring them the capacity to communicate with neurons, via a non-synaptic potassium-mediated mechanism. This developmental change also supports the view that OPCs are probably more than simple progenitors. In the second part of this thesis, we were interested in study the connectivity patterns underlying the GABAergic interneuron-OPC network in the young somatosensory cortex (second postnatal week). First, we took advantage of the high lateral and axial precision of one-photon holographic photolysis to stimulate GABAergic interneurons at a single cell resolution in order to evoke an action potential. We then used this technique to map the connectivity between interneurons and OPCs. We found that the connectivity probability of OPCs was around half less than that of pyramidal cells and involved more local microcircuits. In addition, by performing paired-recordings, OPCs showed to be transiently contacted by fast-spiking (FSI) and non-fast-spiking (NFSI) interneurons, through single or double release sites. Interestingly, postsynaptic sites containing GABAA receptors with the γ2 subunit were predominantly connected by FSI, indicating that these cells provide a specific input to OPCs. Here we described for the first time the emergence of specific cortical network between neurons and non-neuronal cells. In conclusion, this thesis contributed to get a better understanding of the different modes of communication between neurons and OPCs and the establishment of new signaling mechanisms used by neurons to control the activity of these precursors
Maldonado, Rojas Paloma P. "Communication synaptique et non-synaptique entre neurones et cellules précurseurs d'oligodendrocytes dans le cortex somatosensoriel." Phd thesis, Université René Descartes - Paris V, 2013. http://tel.archives-ouvertes.fr/tel-01017183.
Повний текст джерелаMoreau, Carole. "Electrosynthèse d'oligomères hétérocycliques siliciés précurseurs de matériaux conducteurs et de matériaux pour l'optique non linéaire." Bordeaux 1, 1996. http://www.theses.fr/1996BOR10638.
Повний текст джерелаTran, Dinh Phong. "Synthèse et caractérisation de précurseurs de cuivre, or et iridium et études des dépôts de films métalliques correspondants par CVD pour des applications en microélectronique." Paris 11, 2007. http://www.theses.fr/2007PA112248.
Повний текст джерелаA novel series of fluorine free copper (I) precursors, (b-diketonate)Cu(L) (L = BTMSA or TMSP), has been synthesized by acid-base reaction and characterized. Of these precursors, (5-methyl-2,4-hexanedionate)Cu(BTMSA) and (5,5-dimethyl-2,4-hexanedionate)Cu(BTMSA) are the most interested ones. Use of these precursors, the continuous, pure and electrically conducting copper thin films were grown on Ta/TaN from 170°C with high deposition rates (50 nm/min). AuCl(PF3) has been also evaluated for Au thermal CVD in this work. This inorganic precursor was used in solid form (with a conventional bubbler) as well as in a solution with toluene solvent (use of a liquid delivery system). Use of H2 as co-reactant gas, continuous and pure gold metallic thin films were deposited on Ta/TaN from 110°C. The impact of carrier gas nature (N2, H2) and deposition temperature on the precursor deposition reaction as well as on the properties of grown gold films has been investigated. [IrCl(PF3)2]2 has been used, for the first time in this work, as iridium source for Ir CVD. This inorganic precursor is very volatile but unstable. Hence, in this work, we have synthesized this precursor "in-situ" in the CVD reactor from IrCl(PF3) which is more stable and experimental. Under N2 carrier gas, compact, conformal and highly pure iridium thin films were grown on SiO2/Si from 240°C. We have also studied the influence of carrier gas nature (N2, H2, or O2) as well as the deposition temperature on the growth of iridium films
Hovhannissian, Gaghik. "Signaux électriques, magnétiques et mécaniques associés à la percolation de l'eau en milieux saturés et non saturés." Paris 6, 2000. http://www.theses.fr/2000PA066216.
Повний текст джерелаКниги з теми "Précurseurs de NOx"
Milleret, Guénolée. Haute couture: Histoire de l'industrie de la création : des précurseurs à nos jours. Paris: Eyrolles, 2015.
Знайти повний текст джерелаPeels, Rafael, and Aida Ponce del Castillo. Utiliser la prospective stratégique pour réfléchir et agir face à un avenir du monde du travail incertain. Genève: OIT, 2024. http://dx.doi.org/10.54394/otow7473.
Повний текст джерелаHorace Wells (1815-1848) et Villiam T.G. Morton (1819-1869): La rencontre improbable de deux précurseurs de l'anesthésie. Paris: L'Harmattan, 2013.
Знайти повний текст джерелаЧастини книг з теми "Précurseurs de NOx"
DORANDEU, F., M. P. PETIT, O. NESPOULOUS, F. VOLOT, Ph LABADIE, A. M. JALADY, J. U. MULLOT, H. DELACOUR, and Ch RENARD. "Actualités des réponses médicales aux menaces chimiques." In Médecine et Armées Vol. 46 No.3, 239–46. Editions des archives contemporaines, 2018. http://dx.doi.org/10.17184/eac.7339.
Повний текст джерела"Incidences des conflits et des différends territoriaux non résolus sur le contrôle des précurseurs." In Précurseurs et produits chimiques fréquemment utilisés dans la fabrication illicite de stupéfiants et de substances psychotropes, 39–44. United Nations, 2024. http://dx.doi.org/10.18356/9789213588048c008.
Повний текст джерелаSepiéter, Martine. "La mise en place du dispositif de médiation interne à une grande entreprise : l’exemple précurseur de la SNCF." In L’art de pacifier nos conflits, 315–25. Érès, 2022. http://dx.doi.org/10.3917/eres.benha.2022.01.0315.
Повний текст джерелаHUSSON, Laurent, and Pierre SEPULCHRE. "Biogéographie géophysique." In La biogéographie, 95–128. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9060.ch4.
Повний текст джерелаLAMINE, Claire, Denis CAREL, and Hélène PROIX. "Paysamap." In Pratiques et savoirs agricoles dans la transition agroécologique, 79–96. Editions des archives contemporaines, 2022. http://dx.doi.org/10.17184/eac.3054.
Повний текст джерелаButez, Charlotte, Ilana Sabo, Marie Thery, and Christine Toulet. "L’harmonie tonique comme précurseur de la relation et nos objets périnataux pour accommoder les nouveau-nés vulnérables." In L'art d'accommoder embryons, fœtus et bébés, 213–34. Érès, 2014. http://dx.doi.org/10.3917/eres.dugna.2014.01.0213.
Повний текст джерела"Parties et non-parties à la convention de 1988, par région, au 1er Novembre 2014." In Précurseurs et produits chimiques fréquemment utilisés dans la fabrication illicite de stupéfiants et de substances psychotropes, 45–50. UN, 2015. http://dx.doi.org/10.18356/08c6f50e-fr.
Повний текст джерела"Parties et non-Parties à la Convention de 1988, par région, au 1er novembre 2013." In Précurseurs et produits chimiques fréquemment utilisés dans la fabrication illicite de stupéfiants et de substances psychotropes 2013, 45–50. UN, 2014. http://dx.doi.org/10.18356/364dfaf1-fr.
Повний текст джерела"Parties et non-parties à la convention de 1988, par région, au 1er novembre 2016." In Précurseurs et Produits Chimiques Fréquemment Utilisés Dans la Fabrication Illicite de Stupéfiants et de Substances Psychotropes 2016, 45–49. UN, 2017. http://dx.doi.org/10.18356/1204b8b9-fr.
Повний текст джерела"Parties et non-Parties à la Convention des Nations Unies contre le trafic illicite de stupéfiants et de substances psychotropes de 1988, par région, au 1er novembre 2020." In Précurseurs et produits chimiques fréquemment utilisés dans la fabrication illicite de stupéfiants et de substances psychotropes, 43–47. United Nations, 2021. http://dx.doi.org/10.18356/9789210056779c007.
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