Results 61 to 70 of about 9,990 (162)

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

open access: yesOil & 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.   +9 more
doaj   +1 more source

Dictionnaire des matériaux du peintre

open access: yesGe-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

Main‐chain polyfullerenes: Taking fullerene to the next dimension

open access: yesPolymer 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   +4 more
wiley   +1 more source

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

open access: yesRevue 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  

Influence of sulfonation degree and deposition technique on the electrical and morphological properties of sulfonated polystyrene thin films

open access: yesPolymer International, EarlyView.
Sulfonated polystyrene films with different degrees of sulfonation were fabricated using Langmuir–Schaefer and drop‐casting techniques. Both the deposition method and sulfonation level strongly affect film morphology and electrical response, governing the performance of these materials as ammonia gas sensors.
Maria Eduarda RS Medina   +8 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

open access: yesRevue 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   +3 more
doaj  

Degradation of Crystalline Si‐Based Solar Modules With Varying Material Combinations—Part I: Encapsulant Degradation

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This work deals with the degradation of solar modules with varying material combinations under accelerated aging conditions. By in situ moisture measurements and simulations of oxygen ingress, the consumption of stabilizing additives and polymer degradation can be correlated spatially resolved with the penetrating stressors.
Robert Heidrich   +11 more
wiley   +1 more source

Elaboration et caractérisation des matériaux binaires CuxS et Ag2S élaborés par la technique SILAR pour couche tampon de cellule solaire à base de couche absorbante CIS

open access: yesRevue des Énergies Renouvelables, 2010
Depuis une dizaine d’années, des efforts considérables ont été accomplis dans le domaine de nouveaux matériaux synthétisés à bas coût pour être intégrer dans les cellules solaires à base de couches absorbantes CIS: CuIn (S,Se)2, et GICS: Cu(In, Ga)(Se,S ...
M. Adnane   +4 more
doaj  

Incorporation of Natural Antimicrobial Agents Into Thermoplastic Polymers for Food Applications: Strategies, Efficacy, Challenges and Future Directions

open access: yesPackaging Technology and Science, EarlyView.
This graphical abstract summarizes the main strategies for incorporating natural antimicrobial agents into thermoplastic food packaging polymers, including melt processing, surface deposition, controlled release and chemical immobilization. It highlights the major classes of natural antimicrobials, key advantages such as microbial growth reduction and ...
Florence Akinmeye   +4 more
wiley   +1 more source

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials

open access: yesSmall, EarlyView.
In this work, new membranes based on charged & nanoporous nanosheets with unprecedented selectivity to silver versus a wide range of other metallic ions are reported. Furthermore, a demonstrated and lead specific intralamellar lead pathway is demonstrated. A potential applicability for ubiquitous silver in WEEE is validated.
Sarah M. Chevrier   +6 more
wiley   +1 more source

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