Academic literature on the topic 'Milieux ionisés'
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Journal articles on the topic "Milieux ionisés"
De Matos Simoes, Ricardo, Benjamin G. Barwick, Ryosuke Shirasaki, Olga Dashevsky, Sara Gandolfi, Huihui Tang, Brian Glassner, et al. "Functional Oncogenomic and Immune Response Landscape for Genes Recurrently Mutated in Myeloma." Blood 138, Supplement 1 (November 5, 2021): 1589. http://dx.doi.org/10.1182/blood-2021-154359.
Full textDissertations / Theses on the topic "Milieux ionisés"
Boubert, Pascal. "Méthodes spectroscopiques appliquées aux plasmas et aux milieux à haute enthalpie." Rouen, 1999. http://www.theses.fr/1999ROUES056.
Full textGaouar, Adil. "Théorie cinétique et données de base des électrons dans les plasmas non thermiques : application aux milieux d'excitation des lasers à excimères." Toulouse 3, 1995. http://www.theses.fr/1995TOU30287.
Full textLanza, Mathieu. "Collisions inélastiques et réactives pour les milieux astrophysiques et pour les plasmas froids : théorie et modélisation." Thesis, Le Havre, 2014. http://www.theses.fr/2014LEHA0008/document.
Full textThe determination of the physical conditions in energetic media such as interstellar molecular clouds and cold plasmas (temperature, gas density, molecular abundance) requires the knowlegde of collisional rate coefficients of molecules in collisions with the dominant species which are e, H, He and H2. In this context, quantum chemistry calculations and collisional dynamics were performed for HCl in collision with He and H2 and the electron-ion collisions for BeH+ (and its isotopes) and H2+ were studied. The consequences of these calculations on the energetic media are presented
Boffelli, Jeoffrey. "Cοllisiοns réactives entre électrοns et catiοns d'hydrures : apprοches théοriques et applicatiοns dans les milieux iοnisés hοrs-équilibre." Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH19.
Full textElectron-impact collisions of molecules are present in cold ionized media such as interstellar clouds, planetary atmospheres and cold plasma. With enough energy to move about and escape from capture, electrons collide and react with other species in their environment forming precursors of more complex molecules and destroying species, allowing for redistribution of energy and material. Experimental and theoretical researchers are working hand-in-hand to continuously improve their respective ability to probe and to describe the kinetic of such media. Experimental devices such as storage-rings (e.g. CSR) are now able to produce measurements with state-to-state resolution. On the other hand, theoretical studies are not restricted by physical (e.g. finance) or chemical (e.g. toxicity) limitations while still being time-consuming. This work is about two theoretical approaches and their applications to investigate different processes for three diatomic molecular cations. Firstly, we extend our group previous dissociative recombination study of SH+ by accounting for more dissociative states (coming from the 4Π neutral symmetry), by producing branching ratios and by calculating vibrational excitation cross sections and rate coefficients (using the SW-MQDT approach). While the rotational structure of the molecule is neglected and should be investigated in a future work, good agreement is found with the storage-ring measurements for the yields from the dissociative recombination process. Secondly, we also extend our group previous low energy study BeH+ to high energy including the dissociative excitation process through discretized ionization continua and by accounting for higher-lying dissociative states, allowing the production of cross sections and rate coefficients for the dissociative recombination, dissociative excitation and vibrational transitions (using the SW-MQDT approach). Finally, we investigate the dissociative recombination of CF+ using a different approach called RMT-MQDT, where electronic couplings and neutral dissociative states do not need to be explicitly calculated, based on R-matrix theory to calculate the electronic fixed-geometry scattering matrix and based also on MQDT theory --- for the treatment of the nuclear motion (frame transformation) and accounting for the Rydberg series of states (quantum defect with CCEP). Good agreement is found with the storage-ring experiment when accounting for the rotational structure of the molecule
Béquin, Philippe. "Modèles de sources acoustiques à gaz ionisé." Le Mans, 1994. http://www.theses.fr/1994LEMA1018.
Full textBrahimi, Loann. "Transport du rayonnement cosmique dans le milieu interstellaire faiblement ionisé." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS048.
Full textCosmic rays play a fundamental role in the dynamics of the galaxy. The way it is injected into the interstellar medium and the processes it can impact over is an active research branch of Astrophysics. Although supernova remnants are thought to be the main cosmic ray accelerators there is no actual model for their injection that can efficiently explain their spectral distribution as observed on Earth and that can be validated by observations at high energy. Moreover, the effects of cosmic rays on the turbulent dynamic of the weakly ionized interstellar medium and in particular the galactic star formation rate stay unknown.In this thesis I have developed an injection and transport model for cosmic rays in the energy range 1 GeV to 100 TeV. The particles escape from Ia type supernovae remnants and propagate in the weakly ionized interstellar medium. This process is studied using a new 1D transport code called : CR SPECTRA. Having escaped from the remnant, cosmic rays drive magnetic turbulence at scales corresponding to their gyration radius which contribute to confine the particles close to the accelerator. Molecular clouds in the environment of the source represent preferential targets to probe the cosmic ray content using gamma-ray telescopes.In a second work, I have modeled the interactions of cosmic rays with a weakly ionized, thermally bi-stable interstellar medium using the 3D MHD code RAMSES. Cosmic rays transport properties are intimately linked with those of magnetic turbulence. In particular, I showed that under certain conditions, cosmic rays can prevent dense structures formations and can potentially contribute to reduce the star formation rate in the galaxy
MAITIA, VERONIQUE. "Extension du programme de chronometrage des pulsars millisecondes a nancay. Application cosmologique et etudes du milieu interstellaire ionise." Paris 7, 1998. http://www.theses.fr/1998PA077097.
Full textGENSOARMES, FRANCOIS. "Les processus de charge electrique : _ des aerosols non radioactifs en milieu fortement ionise, _ des aerosols radioactifs artificiels emetteurs beta." Paris 12, 2000. http://www.theses.fr/2000PA120031.
Full textPorquet, Delphine. "Étude du milieu fortement ionisé dans les noyaux actifs de galaxies ("Warm Absorber") : modélisation multi-longueurs d'onde et diagnostics de plasmas dans le domaine des rayons X." Paris 6, 1999. http://www.theses.fr/1999PA066413.
Full textVassal, Marie-Cécile. "Etude et miniaturisation d'un analyseur basse fréquence destiné à la correction de l'effet Doppler à bord d'une sonde en mouvement rapide par rapport au milieu étudié : application à la mission "Solar Probe"." Versailles-St Quentin en Yvelines, 2001. http://www.theses.fr/2001VERS0029.
Full textBook chapters on the topic "Milieux ionisés"
"Chapitre 5 Le gaz interstellaire ionisé." In Le milieu interstellaire, 97–132. EDP Sciences, 2002. http://dx.doi.org/10.1051/978-2-7598-0280-7.c006.
Full textTURBAL, Yurii, Mariana TURBAL, and Andrii BOMBA. "Ondes solitaires dans les « eaux peu profondes »." In Méthodes de calcul et modélisation mathématique en cyberphysique et applications techniques 1, 311–49. ISTE Group, 2024. https://doi.org/10.51926/iste.9164.ch12.
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