Results 111 to 120 of about 239,031 (265)

Modélisation numérique des matériaux à changement de phase

Incertitudes et Fiabilité des Systèmes Multiphysiques
Les systèmes de refroidissement traditionnels n’ont pas la capacité d’assurer un bon transfert d’énergie thermique. Grâce à l’évolution de ces systèmes, il est possible d’améliorer les nouveaux dispositifs.
Kawtar Esstar, Bouchaib Radi, Abdelkhalak El Hami   +2 more
doaj   +1 more source

Using Low-Cost Iron-Based Materials as Oxygen Carriers for Chemical Looping Combustion Utilisation de matériaux bon marché à base de fer comme transporteur d’oxygène dans la combustion en boucle chimique

Oil & Gas Science and Technology, 2011
In chemical looping combustion with solid fuels, the oxygen-carrier lifetime is expected to be shorter than with gaseous fuels. Therefore, it is particularly important to use low-cost oxygen carriers in solid fuel applications.
Jerndal E., Leion H., Axelsson L., Ekvall T., Hedberg M., Johansson K., Källén M., Svensson R., Mattisson T., Lyngfelt A.   +9 more
doaj   +1 more source

Dictionnaire des matériaux du peintre

Ge-conservación, 2011
Reseña del libro: Dictionnaire des matériaux du peintre François Perego Editorial Belin Paris 2005 895 páginas, 18 x 28cm ISBN: 978-2-7011-2135 ...
Marisa Gómez González
doaj   +1 more source

Morphology control of the magnetization reversal mechanism in Co80Ni20 nanomagnets

, 2015
Nanowires with very different size, shape, morphology and crystal symmetry can give rise to a wide ensemble of magnetic behaviors whose optimization determines their applications in nanomagnets.
Gaul, Audrey, Jouini, Noureddine, Leridon, Brigitte, Mercone, Silvana, Schoenstein, Frédéric, Zighem, Fatih   +5 more
core   +2 more sources

Main‐chain polyfullerenes: Taking fullerene to the next dimension

Polymer International, EarlyView.
This short review appraises main‐chain polyfullerenes. Their slow development over 30 years has suddenly boomed with a rapid growth due to exciting developments in solar energy. Abstract This mini‐review gives an overview of the development, chemistry, properties and applications of main‐chain polyfullerenes.
Marco Antônio GB Gomes, Orisson Ponce Gomes, Patricia Targon Campana, Didier Bégué, Roger C Hiorns   +4 more
wiley   +1 more source

Matériaux de construction et confort thermique en zone chaude Application au cas des régions climatiques camerounaises

Revue des Énergies Renouvelables, 2011
La présente étude est consacrée à l’obtention du confort thermique dans l’habitat par une utilisation judicieuse des matériaux de construction. La particularité de cette étude est qu’elle intègre un volet socioculturel par la prise en compte des ...
A. Kemajou, L. Mba
doaj  

Characterization of the Plasma Shape of the TIG Welding Arc [PDF]

, 2006
Tungsten electrodes were prepared to analyse the plasma geometry at TIG welding. The investigated electrodes were La02, Th02 alloyed. Tip flatted electrodes were grinded as well. The shape of plasma were analysed for 36 different electrodes.
Bernáth, Andrea, Dobránszky, János, Marton, Hilda   +2 more
core  

Oxidative degradation of rosslinked EPDM elastomers: Impact on the entanglement network

Journal of Polymer Science, EarlyView.
Entanglement versus chemical crosslink contributions during oxidation‐induced chain scission ageing. ABSTRACT The mechanical behavior of elastomers is mainly governed by the architecture of their macromolecular network. The increase in modulus observed during the oxidation of elastomers that predominantly undergo cross‐linking rather than chain ...
Maria Luísa Garbelini, Pierre‐Yves Le Gac, Maelenn Le Gall, Guillaume Le Dain, Servane Haller, Paul Sotta, Bruno Fayolle   +6 more
wiley   +1 more source

Approches théoriques de la conductivité thermique apparente du béton de pouzzolane à l’aide d’une modélisation des matériaux poreux

Revue des Énergies Renouvelables, 2011
Le développement récent de quelques matériaux allégés de construction, tel que les bétons légers, capables de jouer un rôle en tant qu’isolant, tout en conservant des niveaux de performances mécaniques suffisants.
M.Z. Bessenouci, E.N. Bibi Triki, S. Khelladi, A. Abene   +3 more
doaj  

Amino acid vectorization of salicylic acid enables efficient activation of NPR1‐dependent defense without phytotoxicity

Pest Management Science, EarlyView.
Amino acid‐vectorized salicylic acid activates PR1/NPR1‐dependent defenses without phytotoxicity, showing an efficient strategy for controlled delivery and enhanced plant immunity. Abstract BACKGROUND Addressing global food security under rapid population growth and climate change requires sustainable strategies to protect crops from pathogens while ...
Ruth Oussou, Benoit Guichard, Loïc Lemée, Vincent Lebeurre, Cécile Marivingt‐Mounir, Jean‐François Chollet, Sylvain La Camera   +6 more
wiley   +1 more source