Academic literature on the topic 'Faibles angles de diffusion'
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Journal articles on the topic "Faibles angles de diffusion"
Rhaiem, H. Ben, D. Tessier, and Ch H. Pons. "Comportement hydrique et évolution structurale et texturale des montmorillonites au tours d'un cycle de dessiccation-humectation: partie I. Cas des montmorillonites calciques." Clay Minerals 21, no. 1 (March 1986): 9–29. http://dx.doi.org/10.1180/claymin.1986.021.1.02.
Full textRuel, L., A. Rahmouni, A. Luciani, A. Gaston, and P. Brugières. "Estimation de la perfusion cerebrale par imagerie de diffusion a facteurs b faibles." Journal de Radiologie 86, no. 10 (October 2005): 1405. http://dx.doi.org/10.1016/s0221-0363(05)75706-1.
Full textNallet, F. "Introduction à la diffusion aux petits angles." École thématique de la Société Française de la Neutronique 11 (2010): 17–42. http://dx.doi.org/10.1051/sfn/201011003.
Full textPardo, B., F. Bridou, and M. Maaza. "Réflectométrie X et diffusion aux petits angles." Le Journal de Physique IV 06, no. C4 (July 1996): C4–351—C4–366. http://dx.doi.org/10.1051/jp4:1996432.
Full textGlättli, H. "La diffusion de neutrons aux petits angles." Le Journal de Physique IV 11, PR9 (November 2001): Pr9–19—Pr9–32. http://dx.doi.org/10.1051/jp4:2001902.
Full textLanglois, Simon. "Les réseaux personnels et la diffusion des informations sur les emplois." Articles 18, no. 2 (April 12, 2005): 213–45. http://dx.doi.org/10.7202/055748ar.
Full textJelali, M., A. Vignaud, L. Ruel, M. Bouanane, P. Brugière, A. Luciani, H. Kobeiter, Y. Allory, A. de Lataille, and A. Rahmouni. "Imagerie de diffusion a faibles valeurs de B Dans le cancer de la prostate." Journal de Radiologie 88, no. 10 (October 2007): 1454–55. http://dx.doi.org/10.1016/s0221-0363(07)81404-1.
Full textCinque, L., L. Lombardi, and A. Rosenfeld. "Evaluating digital angles by a parallel diffusion process." Pattern Recognition Letters 16, no. 10 (October 1995): 1097–104. http://dx.doi.org/10.1016/0167-8655(95)00056-m.
Full textLairez, D. "Introduction à la diffusion de neutrons aux petits angles." Journal de Physique IV (Proceedings) 103 (February 2003): 253–90. http://dx.doi.org/10.1051/jp4:200300010.
Full textLazarian, Alex, and Siyao Xu. "Diffusion of Cosmic Rays in MHD Turbulence with Magnetic Mirrors." Astrophysical Journal 923, no. 1 (December 1, 2021): 53. http://dx.doi.org/10.3847/1538-4357/ac2de9.
Full textDissertations / Theses on the topic "Faibles angles de diffusion"
Wellers, François. "Étude de la diffusion élastique neutron-proton à faible transfert entre 400 et 1100 MeV." Paris 11, 1986. http://www.theses.fr/1986PA112338.
Full textThis thesis presents the first complete results of forward differential cross-section, over the entire range of the intermediate energies, in the neutron-proton system. The neutron beam is produced with the synchrotron Saturne II, using the reaction of deuteron break-up, with gives it a relatively high intensity and small energy dispersion. The experimental apparatus is a drift ionization chamber, IKAR, filled with high pressure gas which plays the double role of target and detector of the recoil proton. The use of a neutral beam requires new procedures in the analysis, more elaborate thani1n the case of charged projectiles, where scattered particles were detected in coincidence in wire chambers. The results are then normalized and discussed, using phenomenological parametrization, and integrated in a continuously energy-dependent phase-shifts analysis. An entirely analytic Glauber calculation allows us to estimate the validity of the normalization method
Dehmoune, Jalal. "Rhéoépaississement de systèmes auto-associatifs de la famille CnTAB." Phd thesis, Université de Metz, 2007. http://tel.archives-ouvertes.fr/tel-00266086.
Full textLes systèmes retenus appartiennent à la famille de CnTAB (C12-, C14-, C16- et C18TAB). Nous avons effectué une comparaison entre des résultats de rhéométrie, rhéo-optique, vélocimétrie ultrasonore et diffusion de neutrons aux petits angles. L'ensemble de ce travail a abouti à une description des formes et des dimensions des micelles présentent à l'équilibre. Sous écoulement, il a été déduit que les dimensions des micelles sont grandes et facilement orientables même aux faibles cisaillements quand la chaîne aliphatique est longue. Au déclenchement du rhéoépaississement, la structure induite est totalement orientée et se modifie dans le sens de l'écoulement. Aux taux de cisaillement élevés, les systèmes ont un comportement rhéologique identique, de même que la structure demeure orientée. Sur la base de nos résultats et de ceux de travaux antérieurs, nous avons proposé un modèle décrivant les transitions de formes micellaires liées au comportement sous écoulement des solutions micellaires.
Van, der Grinten Maurits. "Diffusion des neutrons aux petits angles. Variation de contraste par polarisation dynamique." Paris 11, 1993. http://www.theses.fr/1993PA112213.
Full textGummel, Jérémie. "Structures et mécanismes de formation de complexes polyélectrolyte-protéine." Paris 11, 2006. https://tel.archives-ouvertes.fr/tel-00120315.
Full textThe mechanisms driving the formation of complexes made of charged polymeric chains (polyelectrolytes) and proteins, found in domains such as food engineering, pharmacology, or biology, lead to structures still poorly known. We studied them by Small Angle Neutron Scattering (SANS) and used deuterated polymer and contrast matching in solvents made of heavy water and light water. The protein is the lysozyme (positively charged at pH<11) and the polyelectrolyte is polystyrene sulfonate (PSS, always negatively charged). The ratio of charges brought ([-]/[+]) is an essential parameter. When it is close to 1, two structures can be obtained. One is a gel of PSS crosslinked by the proteins, that locally shrink the PSS chains but keep them in an entangled regime (semi-diluted). The other is made of dense globules (radius ~10 nm) with a fractal organisation at higher scale where the chains are too short and are in a disentangled regime (diluted) after being shrunk. This structure is very well defined and allows a deeper study: we have shown that the core of the globules has a null charge, that the species in excess in an electrostatic point of view stay in solution, possibly in a shell for the PSS chains, and that their size is fixed by the ionic strength. A specific measurement of the counterions has proved that they are ejected from the core of the complexes during their formation. The conformation of the chains inside the complexes has been measured using an adapted labelling. Finally when [-]/[+]>>1, a fluid and limpid transient network of proteins denatured by the PSS is obtained
Brûlet, Annie. "Etudes structurales et dynamiques par diffusion de neutrons aux petits angles de polymères cristaux liquides." Habilitation à diriger des recherches, Université Paris Sud - Paris XI, 2004. http://tel.archives-ouvertes.fr/tel-00006457.
Full textMannix, Oonagh. "Etude de complexes de nanoparticules et polysaccharides par diffusion de rayons X aux petits angles." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAV068.
Full textThe macroscopic properties and long-term stability of a colloidal suspension are controlled by its microstructure. Inter-particle interactions determine the microstructure and dynamics of the system. Colloidal systems are often metastable and so the inter-particle correlations can change with time (and so change the microstructure, and macroscopic properties of the system). As smaller colloidal particles can be used to form larger structures with different properties it is necessary to examine a system across various size scales.In this PhD thesis a combination of small and ultra-small angle x-ray scattering (U)SAXS and x-ray photon correlation spectroscopy (XPCS) techniques are used to investigate colloidal complexation across both time and space. Spatial scales from nanometers (si{nanometre}) to microns (si{micrometre}) and time scales from milliseconds (si{millisecond}) to months were examined to elucidate the formation pathway and structural evolution of the complexes. To uncover general mechanisms of broad relevance this work uses technical-grade, non-ideal materials. The study is on the complexation of silica nanoparticles and chitosan, a bio-sourced, cationic polysaccharide.First, a new description for scattering data of polydisperse silica nanoparticles using a fractal model is employed. An investigation into the small-angle scattering of chitosan by neutrons and x-rays, and static light scattering reveals significant differences that are not readily explained. The investigation of nanoparticle and polysaccharide complexes uses kinetic SAXS measurements to study the formation pathways of the complexes, with rapid mixing experiments to access shorter times (stopped-flow apparatus). Combined USAXS and SAXS data are analysed to provide information on the complex structure within a state diagram. Salt was removed from the system using dialysis, and the subsequent behaviour of the system was investigated. It was found that the behaviour of the dialysed system differed to the behaviour of the non-dialysed system over long timescales. In the dialysed system the growth of crystallites of colloidal silica was observed. These results, along with an investigation into the temperature dependency of the system lead to some understanding of the microstructure of this type of colloidal complex
Mendes, Eduardo. "Etude par diffusion des neutrons aux petits angles de la structure de gels de polymere." Université Louis Pasteur (Strasbourg) (1971-2008), 1991. http://www.theses.fr/1991STR13070.
Full textLoppinet, Benoit. "Etude de la structure de solutions d'ionomères en solvants polaires par diffusion aux petits angles." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10208.
Full textDe, Iuliis Silvana. "Etude de la vitesse de formation des suies à partir de l'éthylène en présence d'hydrogène par les méthodes du tube à choc et du brûleur au moyen de différentes techniques optiques." Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00623053.
Full textCardoso, de Lima Joao. "Étude des alliages amorphes métalliques Ni-Zr par diffusion anomale des rayons X aux grands angles." Paris 11, 1989. http://www.theses.fr/1989PA112360.
Full textBooks on the topic "Faibles angles de diffusion"
École Thématique de la Société Française de Neutronique (1998 Albé, Massif Vosgien, France). Diffusion de neutrons aux petits angles (DNPA): École Thématique de la Société Française de Neutronique, Albé, Massif Vosgien, France, 12-13 mai 1998. Les Ulis cedex A, France: EDP Sciences, 1999.
Find full textP, Cotton J., Nallet F, and Société française de neutronique, eds. Diffusion de neutrons aux petits angles (DNPA): École thématique de la Société française de neutronique, Albé, Massif Vosgien, France, 12-13 mai 1998. Les Ulis, France: EDP Sciences, 1999.
Find full textHaugen, Odd Einar, and Daniel Apollon. The Digital Turn in Textual Scholarship. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252038402.003.0002.
Full textCelati, Marta. Conspiracy Literature in Early Renaissance Italy. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198863625.001.0001.
Full textBook chapters on the topic "Faibles angles de diffusion"
Cantoni, V., L. Cinque, S. Levialdi, and L. Lombardi. "Evaluating digital angles by a parallel diffusion process." In Image Analysis and Processing, 133–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-60298-4_248.
Full textOttenberg, Karsten. "Brightness-contrast diffusion and the grouping of missing angles." In Computer Analysis of Images and Patterns, 133–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/3-540-57233-3_18.
Full text"10. Diffusion aux petits angles des rayons X et des neutrons." In Du verre au cristal, 233–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2-016.
Full text"10. Diffusion aux petits angles des rayons X et des neutrons." In Du verre au cristal, 233–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2.c016.
Full textA. Olkhov, Anatoly, Svetlana G. Karpova, Anna V. Bychkova, Alexandre A. Vetcher, and Alexey L. Iordanskii. "Electrospinning of Fiber Matrices from Polyhydroxybutyrate for the Controlled Release Drug Delivery Systems." In Electrospinning - Material Technology of the Future [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105786.
Full textConference papers on the topic "Faibles angles de diffusion"
Tsukada, Takumi, Taichi Nishijima, and Wataru Watanabe. "Image reconstruction of objects through diffusers with different diffusion angles." In Biomedical Imaging and Sensing Conference, edited by Osamu Matoba, Yasuhiro Awatsuji, Yuan Luo, Toyohiko Yatagai, and Yoshihisa Aizu. SPIE, 2021. http://dx.doi.org/10.1117/12.2615662.
Full textShreeve, R. P., Y. Elazar, J. W. Dreon, and A. Baydar. "Wake Measurements and Loss Evaluation in a Controlled Diffusion Compressor Cascade." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-129.
Full textMcMullan, W. Andrew, and Gary J. Page. "Large Eddy Simulation of a Controlled-Diffusion Cascade Blade at Varying Flow Inlet Angles." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59668.
Full textElBialy, Esmail, Haytham El-Zomor, Essam Khalil, and Mohamed Morsy. "Effect of Compound and Forward Diffusion Angles on Film Cooling Effectiveness of Flat Plate Surface." In 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2013. http://dx.doi.org/10.2514/6.2013-600.
Full textHOBSON, GARTH. "A Navier-Stokes analysis of a controlled-diffusion compressor cascade at increasing inlet-flow angles." In 28th Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1992. http://dx.doi.org/10.2514/6.1992-3313.
Full textYu, H. "Research on sewage diffusion from different azimuth and jet angles of QI Dong marine discharge engineering." In The 2015 International Conference on Electronics, Electrical Engineering and Information Science (EEEIS2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814740135_0092.
Full textElazar, Y., and R. P. Shreeve. "Viscous Flow in a Controlled Diffusion Compressor Cascade With Increasing Incidence." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-131.
Full textMortazavi, Mehdi, and Kazuya Tajiri. "Impact of Gas Diffusion Layer Properties on Liquid Water Breakthrough Pressure in Polymer Electrolyte Fuel Cell." In ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 7th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fuelcell2013-18361.
Full textCyrus, Vaclav. "Separated Flows in Axial Flow Compressor With Variable Stator Vanes at Positive Incidence Angles." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-480.
Full textMuñoz-Moreno, Emma, Rubén Cárdenes, and Alejandro F. Frangi. "Analysis of the helix and transverse angles of the muscle fibers in the myocardium based on Diffusion Tensor Imaging." In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010). IEEE, 2010. http://dx.doi.org/10.1109/iembs.2010.5627867.
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