Academic literature on the topic 'Propriété électriques'
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Journal articles on the topic "Propriété électriques"
Musso, J., A. Benlhachemi, and J. R. Gavarri. "Modélisation des propriétés électriques d'un composite supraconducteur." Le Journal de Physique IV 08, PR1 (May 1998): Pr1–13—Pr1–19. http://dx.doi.org/10.1051/jp4:1998103.
Full textBartolo, Denis, and Cécile Cottin-Bizonne. "Matière active synthétique." Reflets de la physique, no. 57 (April 2018): 27–31. http://dx.doi.org/10.1051/refdp/201857027.
Full textKhadir, Samira, Mahmoud Chakaroun, and Azzedine Boudrioua. "Effet du plasmon de surface localisé sur les propriétés des sources organiques (OLED)." Photoniques, no. 90 (January 2018): 26–27. http://dx.doi.org/10.1051/photon/20189026.
Full textGahé, Emile, Michel Allard, and Maurice K.-Seguin. "Géophysique et dynamique holocène de plateaux palsiques à Kangiqsualujjuaq, Québec nordique." Géographie physique et Quaternaire 41, no. 1 (December 18, 2007): 33–46. http://dx.doi.org/10.7202/032663ar.
Full textPointu, A. M. "Modélisation des propriétés électriques des décharges RF diode." Revue de Physique Appliquée 24, no. 3 (1989): 257–76. http://dx.doi.org/10.1051/rphysap:01989002403025700.
Full textMoreau, Julien, and Lionel Lartigue. "Plasmons polaritons de surface." Photoniques, no. 115 (August 8, 2022): 46–50. http://dx.doi.org/10.1051/photon/202211246.
Full textSimon, François-Xavier, Julien Guillemoteau, Guillaume Hulin, Joachim Rimpot, Julien Thiesson, and Alain Tabbagh. "De nouvelles perspectives pour les applications des méthodes électromagnétiques basse fréquence en archéologie." Archimède. Archéologie et histoire ancienne 7 (June 9, 2020): 272–82. http://dx.doi.org/10.47245/archimede.0007.act.14.
Full textDhouib, A., A. L. Conjeaud, B. Maloumbi, and L. Gouskov. "Propriétés électriques et photoélectriques d'homojonctions InP p +/n diffusées Zn." Journal de Physique 46, no. 6 (1985): 947–54. http://dx.doi.org/10.1051/jphys:01985004606094700.
Full textFievet, Patrick, and Anthony Szymczyk. "Caractérisation des propriétés électriques des parois de pores d’une membrane." Comptes Rendus Chimie 5, no. 6-7 (June 2002): 493–505. http://dx.doi.org/10.1016/s1631-0748(02)01413-3.
Full textNâamoune, F., A. Hammouche, and A. Kahoul. "Propriétés électriques des oxydes de tantale électrogénérés en milieu aqueux." Journal de Chimie Physique et de Physico-Chimie Biologique 95, no. 7 (July 1998): 1640–49. http://dx.doi.org/10.1051/jcp:1998332.
Full textDissertations / Theses on the topic "Propriété électriques"
Masillamani, Appan Merari. "Propriétés électriques des nanostructures π-conjugués." Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-00836614.
Full textPatureau, Pascaline. "Synthèse et caractérisations de matériaux à propriétés magnéto-électriques." Nantes, 2015. https://archive.bu.univ-nantes.fr/pollux/show/show?id=1ca05480-62dc-4c53-ab66-11d77e833e63.
Full textThis thesis is centered on the study of type II multiferroic material MnWO4. The helical arrangement of the spins carried by Mn2+ ions in the temperature range between 8 and 12. 3 K induces, at the micrometric level, the onset of a ferroelectric order. In order to better understand both the strong magnetic-dielectric coupling and the structure-properties relationships, we defined two main research directions. One is the chemical substitution of Jahn-Teller Cu2+ ions for Mn2+ ions. The existence of a Mn1-xCuxWO4 solid solution for 0 ≤ x ≤ 1 with a crystalline phase change at x ≈ 0. 3 was demonstrated. Magnetic susceptibility and dielectric measurements have highlighted the preservation of the multiferroic properties for x < 0. 15 and the emergence of new magnetic interactions within the materials for x < 0. 3. The research direction is to reduce the size of MnWO4 particles to the nanoscale. Nanoparticles with sizes under 100 nm and a controlled morphology, having a wolframite structure, were synthesized using the hydrothermal route. The presence of crystallization water and hydroxyl groups in these compounds was demonstrated for the first time. Intermediate compounds in the synthesis of these nanoparticles were also studied, revealing an interesting variety of chemical formulas and structures. Finally, Spark Plasma Sintering densification of powder compacts allowed to prove the multiferroic property of nanometric materials having both the MnWO4 chemical formula and the wolframite structure
Lecoublet, Morgan. "Ρrοpriétés Diélectriques des Μatériaux Biοsοurcés." Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMR027.
Full textIn a context of sustainable development and public awareness of environmental issues, biobased polymers represent a promising niche in the industrial sector, with a strong growth potential. This is a favorable context for the development of new biobased and/or biodegradable structures suitable for a wide range of dielectric applications, but many limitations still exist to fully benefit from the dielectric performance of biobased polymers. This thesis is part of a broader effort to promote the use of biobased materials in the dielectric field, proposing an advanced study of the multiphysical properties, particularly dielectric properties, of biobased polymers to identify applications in dielectric fields suitable for such materials. In the first phase of the thesis, an advanced literature review identified three biobased polymers with high potential for the dielectric field, i.e. polylactic acid (PLA), polyhydroxybutyrate-co-valerate (PHBV) and cellulose acetate (CA). Their dielectric performance were comparable to conventional synthetic polymers used in electrical insulation, such as polyethylene, polypropylene and epoxy resin. In addition, the literature review also identified three potential strategies to encourage the use of bio-based polymers in electrical insulation, i.e. the development of polymer blends, the creation of bio(nano)composites based on cellulosic fillers, and the use of new processing techniques such as 3D printing. The second phase of the thesis proposes the creation of polymer blends and 3D printing to obtain 3D-printed PLA-based materials for application in electrical insulation. Preliminary results showed that PLA : CA blends were the most promising for the continuation of the project and were therefore chosen for the 3D printing step. The addition of CA improved the mechanical stability of PLA in a rubbery state, but also slightly reduced their electrical insulation capacity. An optimization step using a Taguchi design resulted in 3D-printed polymer blends samples with mechanical rigidity and electrical insulation capacity comparable to low-density polyethylene. The final phase of the thesis proposes to combine the use of cellulose-based bio(nano)composites and 3D printing to obtain PLA-based materials for application in electrical insulation. Two different fillers were used and compared: cellulose microcrystals (MCC) and cellulose nanocrystals (NCC). The results showed that the addition of cellulose fillers improved the mechanical rigidity of the materials, but also slightly reduced their electrical insulation capacity. A factorial design optimization step produced cellulose-reinforced biocomposites with superior mechanical properties to polypropylene, while offering comparable electrical insulation properties. This thesis therefore proposes biobased and even compostable alternatives to polyethylene and polypropylene in the electrical insulation field, through the combined use of different strategies easily applicable on an industrial scale, in line with a sustainable development approach
Beauvais, Sébastien. "Etude de l'influence de la porosité sur les propriétés électriques de dépôts réalisés par projection plasma." Phd thesis, École Nationale Supérieure des Mines de Paris, 2003. http://tel.archives-ouvertes.fr/tel-00006592.
Full textutilisation comme revêtement isolant est envisagé pour l?amélioration des sondes géologiques. La souplesse du
procédé de projection plasma a permis l?obtention de dépôts présentant une large gamme de porosités aux proportions et morphologies variées. Le dépôt se construit par empilement de gouttelettes en fusion. Celles-ci, en s?étalant et se solidifiant pour former des lamelles, génèrent un réseau de porosité interconnectée, anisotrope et tridimensionnel. Ce dernier est difficile à observer et caractériser. Il comprend les pores globulaires, les fissures inter-lamellaires et les fissures intra-lamellaires. Leur caractérisation microstructurale a été réalisée par analyse d?images de coupes de dépôts. Six d?entre eux, ont été sélectionnés pour mesurer leurs propriétés électriques. Ces microstructures très particulières, riches en défauts, entraînent une dégradation plus ou moins importante des propriétés électriques par rapport à l?alumine massive. Ces mesures ont montré que la porosité, principalement via les fissures intralamellaires, constituait des canaux « perforants » reliant le substrat à la surface du dépôt. Des mesures par spectroscopie d?impédance ont révélé que pour tous les dépôts, lors d?une immersion, le liquide arrivait à
atteindre le substrat et à amorcer une réaction de corrosion au fond des pores. Enfin, la méthode appelée
« Scanning Electron Microscopy Mirror Effect », consistant à irradier un matériau avec un canon à électrons, a
démontré que suivant leur orientation, les fissures constituaient soit des chemins privilégiés, soit des obstacles pour les porteurs de charges au sein du matériau.
Cette porosité « perforante » étant due à son haut degré d?interconnexion, une simulation tridimensionnelle de la
microstructure et de la porosité a été développée. Elle se fait par empilements successifs de lamelles incorporant
de manière aléatoire les pores et les fissures. Pour cela, des lamelles étalées sur des substrats d?alumine polis et
préchauffés ont été observées et caractérisées. L?acquisition de leurs volumes par microscopie confocale a
permis de les modéliser. Les probabilités de présence des défauts ont été déterminées à partir d?observations de
coupes de dépôts. Cette démarche a aboutie à la création d?images 3D du dépôt réel. A partir de ces images,
après un maillage approprié, des calculs par éléments finis, ont permis de révéler une anisotropie des propriétés
électriques en relation directe avec celle de la microstructure. Cette simulation couplée au calcul par éléments finis semble très prometteuse pour la compréhension des relations microstructure/propriétés des dépôts réalisés par projection plasma.
Leboeuf, Mathilde. "Influence des paramètres du procédé sur les propriétés électriques et rhéologiques des polyamides chargés de noir de carbone." Phd thesis, École Nationale Supérieure des Mines de Paris, 2007. http://tel.archives-ouvertes.fr/tel-00246810.
Full textTraoré, Jean. "Dispositif numérique de conditionnement thermique en vue de l'étude des propriétés ohmiques et thermo-électriques d'alliage binaire en couche mince." Rouen, 1992. http://www.theses.fr/1992ROUES052.
Full textAmsellem, Olivier. "Simulations 2D et 3D de microstructure d'alumine projetée plasma pour l'étude de ses propriétés mécaniques et électriques." Phd thesis, École Nationale Supérieure des Mines de Paris, 2008. http://tel.archives-ouvertes.fr/tel-00331802.
Full textHe, Zhongzheng. "Quantification of Electrical Properties of Organs by Magnetic Resonance Imaging." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0099.
Full textTissue electrical properties (EPs), including electrical conductivity and permittivity, define the pathways through which current flows in the body in response to an electromagnetic (EM) field. These properties are influenced by tissue composition, internal structure, aging, and factors like water content, ion concentration, and the medium in which they reside (intra- or extracellular). EPs vary significantly across different tissues and pathological conditions, making them potential biomarkers for clinical applications such as cancer diagnosis, therapy monitoring, and fundamental etiology research. Additionally, understanding EPs allows for the calculation of EM field distribution within the body, which is crucial for assessing personalized specific absorption rate (SAR) in MRI systems to ensure radiofrequency (RF) safety. Among the various technologies for imaging EPs, Magnetic Resonance Electrical Properties Tomography (EPT) stands out due to its non-invasive nature and high spatial resolution. EPT reconstructs the quantitative spatial distribution of EPs from the measured B1 field variations in MRI. The overarching goal of this thesis is to evaluate and optimize EPT methods, and explore the variability of EPs in the population to benefit accurate SAR modeling. This thesis provides a comprehensive overview of the state-of-the-art in EPT, detailing the analysis and review of EPT reconstruction and data acquisition methods. The performance of various EPT methods was first evaluated using conductivity phantoms in terms of accuracy and resolution limits. Considering the advantages and drawbacks of each technique proposed for MR-EPT, image-based EPT with Ultra-short Echo Time (UTE) sequence was selected as the most promising practical approach. The second part of the study focused on evaluating permittivity reconstruction accuracy in image-based EPT with different flip angles of UTE. An optimal flip angle for permittivity was identified, enhancing the reliability of permittivity measurements. Thirdly, to ensure the validity of homogeneous Helmholtz EPT formulations in large homogeneous regions, an adaptive Savitzky-Golay kernel was proposed for any arbitrary tissue shape with anatomical prior knowledge. Additionally, a numerical method for the surface integral version of EPT was developed, providing reduced noise effects by converting second derivatives to first derivatives in the formulation. The fourth part of the thesis explored in vivo conductivity changes in the brain and torso related to age, fat fraction, and sex. These findings offer insights into accurate SAR modeling with corrected conductivity values, accounting for their variability in the population. Finally, the application of EPT in local SAR calculation was developed and compared with those based on literature EPs values. This comparison validated the reliability of EPT, emphasizing its importance in SAR modeling
Achir, Ali. "Contribution à l’étude de la propriété de platitude sur des modèles Bond Graphs non linéaires." Ecole Centrale de Lille, 2005. http://www.theses.fr/2005ECLI0005.
Full textThis PHD thesis aims to study the differential flatness property on non-linear bond graph models (BGs) and to contribute to the resolution of the two principal problems encountered in practice, mainly the problems of flat outputs identification and differential parameterisation. In order to reach this objective, new concepts and graphical tools are introduced. Particularly, thanks to the use of the Kähler differentials, the notion of tangent or variationnel BG (VBG) model is defined. A BG method based on the use of the BGV model enables identifying the bases of the differential module associated with the VBG model, which become the flat outputs of the original non-linear system after integration. Besides, by defining the notion of non-commutative ring BGs, a new gain rule known as Riegle’s gain formula is extended to BGs. Then, by considering a VBG model as a particular case of non-commutative ring BGs, the problem of differential parameterisation is then solved using Riegle’s gain formula and the concept of bicausality. Finally, in order to introduce further concepts of differential algebra and modules theory to the BG methodology, the case of non-linear BG models governed by polynomial differential equations is approached. In this context, the BG allows to conduct a direct analysis of the main properties of the system from its associated BG model, such as the choices of inputs, the dynamics corresponding to these choices, the calculation of differential (non-differential) transcendence degrees, etc. . . It is also shown that Riegle's gain rule can be extended to this class of BGs models
Ruet, Joël. "La réforme du secteur électrique de l'Inde : administration à vendreTransformer les State Electricity Boards en entreprises." Paris, ENMP, 2001. http://www.theses.fr/2001ENMP1128.
Full textBooks on the topic "Propriété électriques"
Manfred, Fiebig, Eremenko Victor V, and Chupis Irina E, eds. Magnetoelectric interaction phenomena in crystals. Dordrecht: Kluwer Academic Publishers, 2004.
Find full textCompany, Canadian Electric Light, ed. The electric light: Illumination upon the systems known as Gramme, Weston, Maxim, Nichols, etc., under propriety rights, for the Dominion of Canada, of the Canadian Electric Light Company, no. 17, Place D'Ames [sic] Montreal. [Montréal?: s.n., 1994.
Find full text1928-, Elliott R. J., and Ipatova I. P. 1929-, eds. Optical properties of mixed crystals. Amsterdam: North-Holland, 1988.
Find full textRicardo, Díaz-Calleja, ed. Electrical properties of polymers. New York: Marcel Dekker, 2004.
Find full textLarry, Rupprecht, ed. Conductive polymers and plastics in industrial applications. Norwich, NY: Plastics Design Library, 1999.
Find full textGlor, Martin. Electrostatic hazards in powder handling. Letchworth, Hertfordshire, England: Research Studies Press, 1988.
Find full textFrançois, Béguin, and Frackowiak Elzbieta, eds. Carbons for electrochemical energy storage and conversion systems. Boca Raton: Taylor & Francis, 2010.
Find full text1965-, Kotov Nicholas A., ed. Nanoparticle assemblies and superstructures. Boca Raton: Dekker/CRC Press, 2006.
Find full textZoila, Reyes, ed. Electrically conductive organic polymers for advanced applications. Park Ridge, N.J., U.S.A: Noyes Data Corp., 1986.
Find full textJiles, David. Introduction to the electronic properties of materials. 2nd ed. London: Nelson-Thornes Pub., 2001.
Find full textBook chapters on the topic "Propriété électriques"
Etienne, Serge, and Laurent David. "Chapitre 7. Propriétés électriques et optiques." In Introduction à la physique des polymères, 221–62. Dunod, 2012. http://dx.doi.org/10.3917/dunod.etien.2012.01.0221.
Full textLU, Xiaoxin, Julien YVONNET, Fabrice DETREZ, and Jinbo BAI. "Modélisation électromécanique non linéaire multi-échelle de nanocomposites graphène-polymère." In Nanocomposites, 167–98. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9031.ch6.
Full textSAKHO, Ibrahima. "Équations de Maxwell." In Ondes électromagnétiques 1, 5–119. ISTE Group, 2020. http://dx.doi.org/10.51926/iste.9006.ch1.
Full textBARDEAU, Jean-francois, Bernard HUMBERT, Angélina D'ORLANDO, and Guy LOUARN. "Spectroscopie vibrationnelle exaltée : Raman résonnant et SERS." In Spectroscopies vibrationnelles, 221–46. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.4202.
Full textPaté, Arthur. "APPROCHE DE LA GUITARE ÉLECTRIQUE SOLID BODY PAR L’ACOUSTIQUE." In Quand la guitare [s']électrise!, 99–113. Sorbonne Université Presses, 2022. http://dx.doi.org/10.70551/lwts4713.
Full text"12 Transport de charges électriques. Conducteurs et isolants. Propriétés électroniques des oxydes." In La chimie des solides, 443–80. EDP Sciences, 2004. http://dx.doi.org/10.1051/978-2-7598-0173-2.c014.
Full textDELAHAYE, Anthony, and Laurence FOURNAISON. "Utilisation des hydrates pour le stockage et la distribution du froid." In Stockage de la chaleur et du froid 1, 161–216. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9133.ch7.
Full textAkeoune, A., J. Claverie, A. Tazaikt, G. Villeneuve, and A. Casalot. "Propriétés structurales, magnétiques et électriques des oxyfluorures V 1-x MxO 2-2x F2x (M = Mg, Ni)." In May 16, 271–82. De Gruyter, 1985. http://dx.doi.org/10.1515/9783112494646-029.
Full textConference papers on the topic "Propriété électriques"
Mangin, Jacques. "Métrologie des propriétés optiques de matériaux massifs : absorption résiduelle, coefficients thermo-optiques, piézo-électriques et électro-optiques." In Élaboration et caractérisation des cristaux massifs et en couches minces pour l'optique. Les Ulis, France: EDP Sciences, 2003. http://dx.doi.org/10.1051/bib-sfo:2002811.
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