Academic literature on the topic 'De brouillard'
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Journal articles on the topic "De brouillard"
Shamlou, Ahmad. "Brouillard." Vacarme 68, no. 3 (2014): 134. http://dx.doi.org/10.3917/vaca.068.0134.
Full textMoorhead, Robert. "Brouillard." Revue Possibles 46, no. 1 (June 1, 2022): 192–93. http://dx.doi.org/10.62212/revuepossibles.v46i1.569.
Full textDardenne, Luc, and Élise Domenach. "Dans le brouillard." Esprit Mars/avril, no. 3 (2009): 234. http://dx.doi.org/10.3917/espri.0903.0234.
Full textPech, Thierry. "Sortir du brouillard." Alternatives Économiques N° 330, no. 12 (December 1, 2013): 5. http://dx.doi.org/10.3917/ae.330.0005.
Full textVidal Sephiha, Haim. "Nuit et brouillard." Sud/Nord 18, no. 1 (2003): 77. http://dx.doi.org/10.3917/sn.018.0077.
Full textArnodin, Lionnette. "Imaginaires du brouillard." Ethnologie française 39, no. 4 (2009): 609. http://dx.doi.org/10.3917/ethn.094.0609.
Full textDischl, Jonas. ""Nuit et brouillard" – Die erinnerungskulturelle Gedächtnismaschine. Ein Blick auf Alain Resnais' Meisterwerk." Didactica Historica 3, no. 1 (2017): 47–51. http://dx.doi.org/10.33055/didacticahistorica.2017.003.01.47.
Full textRaymond Brouillard. "Foreword by Raymond Brouillard." Current Organic Chemistry 16, no. 5 (April 4, 2012): 556. http://dx.doi.org/10.2174/138527212799859381.
Full textAuby, Jean-Bernard. "Brouillard dans les institutions." Tous urbains 1, no. 1 (2013): 48. http://dx.doi.org/10.3917/tu.001.0048.
Full textDONGUY, Patrick, and Loic HARANG. "Brouillard fluvial - Janvier 2005." La Météorologie 8, no. 50 (2005): 7. http://dx.doi.org/10.4267/2042/34814.
Full textDissertations / Theses on the topic "De brouillard"
Suard, Sylvain. "Propagation pulsatoire des flammes de brouillard." Laboratoire de modélisation et simulation numérique en mécanique et génie des procédés (Marseille), 2004. http://www.theses.fr/2004AIX22100.
Full textLaigneau, Claude. "Le brouillard en France : influences de l'urbanisation." Paris 4, 1996. http://www.theses.fr/1995PA040183.
Full textFog generates poor horizontal and vertical visibility, thus directly intervenes on human activities. The growth of towns and cities has implied modifications in the environment, changing the frequency of fog as well. Urban areas are parts of climatic and topographic entities that influence the distribution of fog over the country. So, it is more frequent in towns situated in continental climate areas than in seaside or oceanic climate ones. The same occurs with relief: it will be observed less frequently on coastlines, plains plateaux or narrow valleys than in broad valleys and hollow, hilly or mountainous areas. If the necessary connotations for the fog to build up (temperature, wind speed, relative moisture, etc) are met, it will generally appear, though it may be exceptional in some places. Human conditions must then be taken into account. As a matter of fact, as France is getting more urbanised, two contrary influences oppose each other in towns and cities for the building up of fog: pollution and urban heat island phenomenon. So, when the influence of urban heat outweighs the one of atmospheric pollution, the importance of the urban heat island is so high that the floating particles brought by pollution hinder the condensation of water vapour and thus the build-up of fog. On the contrary, when these conditions are reversed, the amount of particles is high, global radiation is lower and fog occurrence is higher. The decrease of fog is most frequently observed, particularly in stations progressively caught up by urbanization. This has been confirmed by the fact that stations situated in little or non-urbanised areas have counted up a growing number [. . . ]
MONERRIS, JACQUES. "Etude d'une couche de brouillard : observations et simulation numerique." Toulouse 3, 1989. http://www.theses.fr/1989TOU30046.
Full textVishwakarma, Pragya. "Méthodes innovantes pour la restitution des propriétés des nuages à partir du radar BASTA." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPASJ009.
Full textClouds are critical to the majority of aspects of human existence on earth. They also have a significant impact on the earth's energy balance. Although the effect of clouds on the climate is complex and not fully understood, much of the uncertainty about global warming is related to the cloud-climate feedback problem. Studies have shown that the representation of low-level clouds is still underestimated in various climate models. The necessity to examine the cloud properties at different levels has emerged as a priority in earth observation. Continuous and detailed observations of clouds are needed to characterize the cloud properties on a local and global scale. Active remote and passive sensing instruments like cloud radars, lidars, visible and microwave radiometers, etc., have the advantage of continuous observation for long periods from the ground or space.One of the fundamental parameters to characterize the microphysical properties of these low-level clouds is the liquid water content (LWC). This thesis aims at developing an algorithm estimating LWC in low-level clouds using cloud radar and microwave radiometer (MWR) synergy when the latter is available. A 95GHz cloud radar measures the backscattered energy from cloud droplets in terms of radar reflectivity factor (Z). In the Rayleigh regime, Z is considered proportional to the sixth moment of droplet size. Traditionally, empirical relations following a power law such as Z=aLWCb are used to retrieve the LWC of low-level liquid clouds. However, such relationships do not always represent the variability of drop size distribution in a heterogeneous cloud system and do not account for liquid cloud attenuation. In this thesis, I propose using the same concept, but the constraint on ‘a’ from the power law is released by adding extra information such as the liquid water path (LWP). Studies have shown that the accuracy of LWC estimates can be increased by incorporating additional information from an independent remote sensing instrument like a microwave radiometer (MWR) in the retrieval method.My retrieval algorithm is based on probabilistic estimation theory called the variational approach. Thanks to this flexible framework, when liquid water path (LWP) information from MWR is assimilated, the LWC in the profile is scaled by LWP information, and the scaling factor (lna) can also be retrieved for each profile. To test the behavior of the retrieval algorithm, a sensitivity analysis for perturbations in key parameters using synthetic fog profiles from AROME simulation is conducted. The analysis has shown that the algorithm is very sensitive to the bias in LWP because it is a vertically integrated information and thus plays a critical role in the retrieval. Other parameters, such as 'b' and alternative attenuation relationships, have less implications on the stability of the algorithm.Because the sensitivity test is not validating the microphysical assumptions of the method,the validation of such an algorithm is challenging, as we need reference measurements of LWC co-located with the retrieved values.During the SOFOG-3D campaign (South-West of France, October 2019 to March 2020), in-situ measurements of LWC were collected in the vicinity of a cloud radar and a microwave radiometer, allowing comparison against my retrieved LWC. The comparison showed better agreement with in-situ observations for stratus clouds than fog. The comparison also demonstrated that cloud-fog heterogeneity is an important factor in the assessment. Finally, the retrieval algorithm is employed to build a climatology of LWC and lna for 39 cloud and fog cases from November 2018 to May 2019 at the SIRTA observatory. Since the retrieval method must be usable without radiometer information, we propose using this climatology as a priori knowledge for the scaling factor, which is no longer constrained by LWP
Blanchard, Elizabeth. "Modélisation de l'interaction entre un brouillard d'eau et un foyer en tunnel." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10103/document.
Full textThis work deals with the study of the phenomena involved when a water mist is sprayed in a tunnel fire environment. It relies on an extensive use of numerical simulations using the CFD code "Fire Dynamics Simulator". The first chapter of this thesis provides an overview of the tunnel fire characteristics and the phenomena involved when the water mist is sprayed. A bibliographical review on the research on tunnel fires with or without any mitigation system is conducted, allowing to outline the reason and the context for this research. In the second and third chapters, the computational tool undergoes testing. It is verified and validated based on comparison with analytical solutions and experimental cases of increasing complexity: from the laboratory scale for assessing one particular part of the water spray model (chapter 2) up to the tunnel scale (chapter 3). For the last case, the code validation makes use of the results of a reduced scale (1/3rd) tunnel fire test campaign conducted between 2005 and 2008. Once the validation is achieved, the computational tool is used intensively in the third chapter in order to improve the understanding of the interaction phenomena between water mist, tunnel longitudinal ventilation and fire. In particular, the water mist influence on the tunnel air flow is studied, the water mist heat contribution is quantified and the heat transfered to the droplets is identified. Furthermore, the CFD code is used to assess the impact of the longitudinal air velocity, the heat release rate and the water droplet size on the water mist efficiency. The last chapter illustrates how a CFD code can be used on a given situation, here a compartment fire test campaign, in order to foresee the interaction between the water mist, the smoke layer and the smoke extraction
Blanchard, Elizabeth. "Modélisation de l'interaction entre un brouillard d'eau et un feu en tunnel." Phd thesis, Université Henri Poincaré - Nancy I, 2011. http://tel.archives-ouvertes.fr/tel-00672668.
Full textOuarti, Nawel. "Modélisation de l'allumage d'un brouillard de carburant dans un foyer de turbomachine." École nationale supérieure de l'aéronautique et de l'espace (Toulouse ; 1972-2007), 2004. http://www.theses.fr/2004ESAE0013.
Full textSainsaulieu, Lionel. "Modélisation, analyse mathématique et numérique d'écoulements diphasiques constitués d'un brouillard de gouttes." Palaiseau, Ecole polytechnique, 1991. http://www.theses.fr/1991EPXX0012.
Full textEulerian modelization of sprays leads to convection-diffusion systems written under non conservatrice form. We show how the averaging of the Navier-Stokes equations satsified by the gas flow around the droplets and the liquid flow inside the droplets leads to a well-posed problem. The shock waves solutions of the first order non-conservative system extracted from this model are defined as the limit when the diffusion processes are neglected of solutions of the second order system. Then we solve the Riemann problem. More generally this method allows us to define shock waves solutions for a wide class of hyperbolic systems written under non-conservative form. Finally the last section deals with the numerical simulation of sprays
Marois, Gentien. "Modélisation eulérienne de l'interaction d'un brouillard avec un choc en régime supersonique." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0045/document.
Full textIn this thesis we focus on the interaction between a supersonic dilute flow and a detached shock. The Eulerian approach has been chosen because it is particularly adapted to parallel computing. A program named SDFS (Supersonic Dilute Flow Solver), was created and validated in a CEA aerodynamic code. Three aspects of the computational simulation have been studied. First the study and creation of new models. Then the numerical implementation and the validation through academic reference cases. Finally, the comparison between numerical results and experimental data
Klein, Céline. "Conception et prototypage d’un lidar pour la mesure du contenu en eau liquide dans le brouillard." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0094/document.
Full textThe objective of the present study is the design of a lidar for the measurement of vertical profiles of liquid water content in fogs. Presently, there is no system able to measure such profile. The liquid water content is measured at ground or at limited number of altitudes. Yet, the information would improve our understanding of fog processes and provide valuable data for controlling fog forecast models. Its feasibility is theoretically possible because it was shown in the late 70s that the liquid water content and the optical extinction at 11μm are empirically linked by a linear relationship. My first objective was to test this relationship with rencent observations more precise than in the late 70s. The relationship is confirmed within limits that I tried to determine. The vertical extension of fogs is several hundreds of meters. We thus need a lidar with a maximum range of several meters. I compared the range of a direct versus a heterodyne lidar and I found the heterodyne lidar is more appropriate. I have developed analytic approximations of the heterodyne efficiency for several transmitter configurations - monostatic, bistatic with parallel or non-parallel axes - and found the monostatic configuration gives the best results at short range. I coded a simulator for the lidar and showed the retrieval of the extinction coefficient from lidar signals with the usual signal processing technique produces biases at short range. I proposed and validated a correction scheme. I derived two analytic approximations for the bias and the standard deviation of the estimations of the extinction coefficient. They were used to estimate the practical range and accuracy a lidar can achieve for the measurement of the liquid water content in fogs
Books on the topic "De brouillard"
Nkollo, Jean-Jacques. Brouillard. Paris: L'Harmattan, 1990.
Find full textMongrain, Serge. Brouillard. Montréal: Éditions du Noroît, 1999.
Find full textBrouillard d'automne. Paris: Mazarine, 1985.
Find full textBrouillard: Roman. Paris: Cherche midi, 2013.
Find full textHalter, Paul. Le Brouillard rouge. Paris: Librairie des Champs-Elysees, 1988.
Find full textGeorges, Moustaki, and Meir Siegfried, eds. Fils du brouillard. Paris: Fallois, 2000.
Find full textartist, Garcia 1954, and Delobel Anne colorist, eds. Brouillard sur Whitehall. Paris: Dargaud, 1990.
Find full texteditor, Duguet Anne-Marie 1947, Nakaya Fujiko, Nakaya Fujiko, and Nakaya Fujiko, eds. Fog: Kiri = Brouillard. Paris: Éditions Anarchive, 2012.
Find full textChafiq, Chahla. Chemins et brouillard. Genève: Metropolis, 2005.
Find full textVies de brouillard. Casablanca: Afrique orient, 2010.
Find full textBook chapters on the topic "De brouillard"
Resnais, Alain. "Nuit et brouillard (Night and Fog)." In 100 Documentary Films, 161–62. London: British Film Institute, 2009. http://dx.doi.org/10.1007/978-1-84457-551-0_66.
Full textBährle-Rapp, Marina. "brouiller le teint." In Springer Lexikon Kosmetik und Körperpflege, 76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_1343.
Full text"BROUILLARD." In La cacocratie ou la démocratie assassinée par le mensonge, 7–20. Presses de l'Université Laval, 2020. http://dx.doi.org/10.2307/j.ctv1h0p3bv.6.
Full text"Brouillard." In La cacocratie ou la démocratie assassinée par le mensonge, 7–19. Les Presses de l’Université de Laval, 2020. http://dx.doi.org/10.1515/9782763752662-005.
Full text"Références." In « Nuit et Brouillard », 271–80. Odile Jacob, 2007. http://dx.doi.org/10.3917/oj.linde.2007.01.0271.
Full textBaillargeon, Stéphane. "SORTIR DU BROUILLARD MÉDIATIQUE." In La quête de sens à l'heure du Web 2.0, 65–70. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18phg91.12.
Full textGagey, P. M., B. Gagey, and M. Ouaknine. "Quarante ans dans le brouillard." In Posturologie Clinique. Comprendre, évaluer, Soulager les Douleurs, 209–16. Elsevier, 2012. http://dx.doi.org/10.1016/b978-2-294-72130-4.00021-9.
Full text"Nuit et Brouillard (Night and Fog)." In Music as Image, 93–107. Routledge, 2015. http://dx.doi.org/10.4324/9781315722900-19.
Full textBakis, Henry. "Pour l’aménagement d’espaces sans brouillard électromagnétique." In Invitation aux flux, 143–50. Presses universitaires de Provence, 2016. http://dx.doi.org/10.4000/books.pup.28865.
Full textHillier, Jim. "Nuit et brouillard (Night and Fog)." In 100 Documentary Films. British Film Institute, 2009. http://dx.doi.org/10.5040/9781838710606.0069.
Full textConference papers on the topic "De brouillard"
Cohen, Nadja, and Anne Reverseau. "Photographie ou cinéma ? Le brouillage des modèles dans la poésie moderniste." In Création, intermédialité, dispositif. Fabula, 2017. http://dx.doi.org/10.58282/colloques.4430.
Full textReports on the topic "De brouillard"
Fayard, Q., P. Mercier-Langevin, N. Wodicka, R. Daigneault, and S. Perreault. The B26 Cu-Zn-Ag-Au project, Brouillan volcanic complex, Abitibi greenstone belt, part 1: geological setting and geochronology. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2020. http://dx.doi.org/10.4095/323668.
Full textFayard, Q., P. Mercier-Langevin, R. Daigneault, S. Perreault, and N. Wodicka. The B26 Cu-Zn-Ag-Au project, Brouillan volcanic complex, Abitibi greenstone belt, part 2: hydrothermal alteration and mineralization. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2020. http://dx.doi.org/10.4095/323669.
Full textFayard, Q., P. Mercier-Langevin, R. Daigneault, and S. Perreault. Volcanic, hydrothermal and structural controls on the nature and distribution of base and precious metals at the B26 project, Brouillan volcanic complex, Abitibi, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306440.
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