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Статті в журналах з теми "Matériaux de faible dimension":
d’Anglejan, Bruno. "Évolution post-glaciaire et sédiments récents de la plate-forme infra-littorale, baie de Sainte-Anne, estuaire du Saint-Laurent, Québec." Géographie physique et Quaternaire 35, no. 2 (February 1, 2011): 253–60. http://dx.doi.org/10.7202/1000442ar.
Koadri, Zainate, Azzedine Benyahia, Nadir Deghfel, Kamel Belmokre, Brahim Nouibat, and Ali Redjem. "Étude de l’effet du temps de traitement alcalin de fibres palmier sur le comportement mécanique des matériaux à base d’argile rouge de la région de M’sila." Matériaux & Techniques 107, no. 4 (2019): 404. http://dx.doi.org/10.1051/mattech/2019031.
Djeddi, Fadila, Mouloud Mohellebi, and Ahmed Ouibrahim. "Optimisation des propriétés mécaniques de matériaux polymériques par les mélanges et effet bénéfique du vieillissement thermique." Matériaux & Techniques 107, no. 6 (2019): 604. http://dx.doi.org/10.1051/mattech/2020001.
Robinet, J. C., and M. Rhattas. "Détermination de la perméabilité non saturée des matériaux argileux à faible porosité." Canadian Geotechnical Journal 32, no. 6 (December 1, 1995): 1035–43. http://dx.doi.org/10.1139/t95-100.
Pelletier, J. M. "Les verres métalliques massifs : matériaux à faible ou à fort coefficient d’amortissement ?" Revue de Métallurgie 108, no. 6 (2011): 331–41. http://dx.doi.org/10.1051/metal/2011067.
Boutin, Roland. "Le clapage des produits de dragage - Rejet par faible profondeur de matériaux vaseux." Revue française de génie civil 5, no. 7 (October 28, 2001): 1085–104. http://dx.doi.org/10.3166/rfgc.5.1085-1104.
Guéret, Samuel, Gwenaël Diélie, Frédérique Bastin, Tiriana Segato, Michel Verbanck, and Pierre D’Ans. "Influence de la substitution d’argile par des déchets sédimentaires dans des briques en terre crue comprimée (BTCC) sur la résistance à l’abrasion." Matériaux & Techniques 107, no. 3 (2019): 302. http://dx.doi.org/10.1051/mattech/2019018.
Barthel, Étienne, Thierry Deschamps, Guillaume Kermouche, Christine Martinet, Gergely Molnar, and Anne Tanguy. "Le verre : fragile ou ductile ?" Reflets de la physique, no. 74 (December 2022): 46–51. http://dx.doi.org/10.1051/refdp/202274046.
Lamy, Laurent. "De la traduction comme « faible force messianique »." TTR : traduction, terminologie, rédaction 17, no. 1 (December 22, 2005): 195–214. http://dx.doi.org/10.7202/011979ar.
Serifou, Mamery Adama, Obre Sery Paul Jolissaint, Bleh Raoul Kouassi, and Emeruwa Edjikémé. "Analyse physico-mécanique d’un composite paille de riz/ciment." Matériaux & Techniques 108, no. 2 (2020): 208. http://dx.doi.org/10.1051/mattech/2020024.
Дисертації з теми "Matériaux de faible dimension":
Al, Hokayem Karen. "Synthèse électrochimique de nanostructures à base de tellure pour la conversion thermoélectrique." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0315.
Among the thermoelectric materials, tellurium has a high positive Seebeck coefficient (500 μV/K) at room temperature but with a relative high thermal conductivity (3 W/m.K). Nanostructuring is a solution to improve thermoelectric performances, as the lattice part of the thermal conductivity can be independently lowered. In this work, we synthesized self-standing Te nanostructures by electrodeposition technique, taking advantage of the templating properties of ionic liquids solvents. Single crystalline hexagonal nanostructures were systematically obtained with a preferential orientation along the [001] direction. By varying the conditions of electrodeposition, the size of nanostructures can be tuned. Finally, nanorods of 52 ± 11 nm in diameter and less than 300 nm long were grown by applying a small charge density. Tellurium nanorods were used as precursors of an additional synthesis step. Indeed, by simple redox reaction in Ag(I) or Cu(II) aqueous solution, Te nanostructures have been transformed into single crystalline nanorods Ag2+xTe and Cu1.75Te respectively. In the last part of the work, we tried to incorporate these nanostructures as well as graphene quantum dots in conductive polymer in order to realize flexible hybrid films. The latter should combine the interesting thermoelectric properties of the nanostructures and the low thermal conductivity as poly(3-hexylthiophene) (P3HT)
D'Andrea, Fabio. "La variabilite atmospherique a basse frequence comme probleme de faible dimension." Paris 6, 1999. http://www.theses.fr/1999PA066012.
Mokthari, Ilham. "Synthèse et caractérisation de polyimides poreux à faible constante diélectrique." Chambéry, 2005. http://www.theses.fr/2005CHAMS049.
This research work concerns the elaboration of low dielectric constant materials to be used as interlayer dielectrics in microelectronics. The strategy adopted for the generation of porosity relies on the thermal degradation of thermolabiles polycaprolactone sequences simply dispersed or covalently linked to thermostable polyimide matrices, slightly crosslinked by a photochemical process. The first part of this work is devoted to the synthesis and characterization of different polyimides matrices. In a second part, functionnalized polycaprolactone segments (amine-PCL or diamine-PCL) have been synthesized, characterized and involved in a polycondensation reaction in order to end up with controlled architecture copolymers. The last part of the work is related to the elaboration of porous materials. First, the experimental conditions suitable for a complete elimination of the thermolabile segments without any mage to the polyimide matrix have been determined. Therefore, a precise study of the influence of different parameters (polyimide structure, glass transition temperature, polycaprolactone proportion introduced. . . ) on the elaboration of porous structures have been realized. The results obtained suggest at two parameters are crucial for the elaboration of porosity : a high transition temperature of the matrix as well as a phase separation of the thermolabile segments in the themostable polymer
Cargnelli-Barral, Katia. "Elaboration et caractérisation d'aérogels organiques de très faible densité." Montpellier 2, 1999. http://www.theses.fr/1999MON20023.
Dupin, Christophe. "Etude du comportement mécanique des matériaux composites à matrice céramique de faible épaisseur." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00955585.
Boukraa, Djaber. "Sur la conception, la génération de trajectoires et la commande d'un avion autonome de faible dimension." Evry-Val d'Essonne, 2006. http://www.biblio.univ-evry.fr/theses/2006/Interne/2006EVRY0027.pdf.
This work deals with the fixed wings unmanned aerial vehicle (UAV) design, trajectories planning and control. The manuscript is organized as follows : The first part presents the process of design and the UAV modelling. In the second part we propose two algorithms. The first one allows to determining the trim configurations (state and control vectors) for different constraints and limitations to which it is subjected. The second algorithm is a trajectories planner; it uses like primitives a set of trim trajectories to reduce the complexity of the dynamical model. It generates the optimal trajectory by using bang-bang strategy. The last part of this manuscript presents a control technique based on output feedback linearization. This approach transforms the system into an equivalent linear system. This makes possible the use, after that, of any linear control approach
Boubidi, Pascal. "Caractérisation expérimentale et modélisation numérique de la fatigue à faible nombre de cycles d'un superalliage base ni monocristallin sous chargement multiaxial." ENSMP, 2000. http://www.theses.fr/2000ENMP1001.
Sène, Ndèye Awa. "Etudes expérimentales et numériques de la micro-formabilité des matériaux métalliques de faible épaisseur." Chambéry, 2010. http://www.theses.fr/2010CHAMS010.
In recent years, a growing demand on micro technical products is observed. Nowadays, the production of parts with small dimensions and thin thickness by the micro deep drawing process is not always well controlled. New difficulties encountered in the manufacture of such parts are often linked to scaling effects. The objective of this thesis is to characterize the micro-forming ability of aluminium of thin thickness for the determination of micro-forming limit diagrams. The starting point is the achievement of a specific micro deep drawing tool with a punch diameter 9 mm for materials of maximum thickness 0. 4 mm, coupled to an image analysis set-up. Using this experimental device allowed a series of tests on annealed aluminium 1050 A (99. 5%) of small thickness. Several micro-forming limit diagrams were determined by various methods and different criteria for the detection of necking. In order to obtain virtual micro-forming limit diagrams, a numerical modelling of micro deep drawing process has been established: a first simulation with the definition of the complete tool taking into account the surface roughness and a second simulation called "reduced" in which only in the central part of the sample is modelling. For this last, geometric imperfections and microstructure heterogeneities were respectively introduced. Finally, the potential of the micro deep drawing tool is used for the deformation of single crystals and multicrystals following different strain paths in order to validate later micro-mechanical models
Félix, Vincent. "Caractérisation thermique de matériaux isolants légers. Application à des aérogels de faible poids moléculaire." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL095N/document.
The issue of preserving energy raises a number of challenges to science, particularly its efficiency. The conception and characterization of new more efficient thermal insulating materials prove fundamental in this regard. Aerogels appear as serious candidates in this area, their manufacturing process provides extreme characteristics such as high porosity and low density for some of them. Thermal characterization of such materials is tricky, their low sensitivity to heat flux makes well-known methods difficult to implement. Through the study of low molecular weight aerogel samples designed by the LCPM a characterization method suitable to these samples has been developed by the LEMTA. This “three-layers” method offers the advantages of being robust and to overcome the knowledge of parameters that are difficult to reach in such cases. Describing and validating this method is the main object of this work. In addition, thermal conductivity measurements under vacuum have been processed which allowed a deeper understanding of the structure of aerogels. The results obtained this study open perspectives for the optimization of new solutions for thermal insulation
Morandeau, Antoine. "Carbonatation atmosphérique des systèmes cimentaires à faible teneur en portlandite." Phd thesis, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00932816.
Частини книг з теми "Matériaux de faible dimension":
PALA, Marco. "Transistors à effet tunnel basés sur des semi-conducteurs III-V." In Au-delà du CMOS, 5–35. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9127.ch1.
Coqueugniot, Hélène. "Paléo-imagerie par rayons X : une méthode d’exploration transdisciplinaire, de l’archéologie à la chirurgie Hélène." In Regards croisés: quand les sciences archéologiques rencontrent l'innovation, 139–56. Editions des archives contemporaines, 2017. http://dx.doi.org/10.17184/eac.3794.
Звіти організацій з теми "Matériaux de faible dimension":
Dufour, Quentin, David Pontille, and Didier Torny. Contracter à l’heure de la publication en accès ouvert. Une analyse systématique des accords transformants. Ministère de l'enseignement supérieur et de la recherche, April 2021. http://dx.doi.org/10.52949/2.