Results 81 to 90 of about 239,031 (265)

Quantum dot opto-mechanics in a fully self-assembled nanowire [PDF]

open access: yes, 2014
We show that fully self-assembled optically-active quantum dots (QDs) embedded in MBE-grown GaAs/AlGaAs core-shell nanowires (NWs) are coupled to the NW mechanical motion.
Fontana, Y.   +8 more
core   +2 more sources

Alkene Hydrogenation by a Cationic, Nine‐Coordinate Molybdenum(VI) Pentahydride Catalyst

open access: yesChemistry – A European Journal, EarlyView.
While late 3d metals dominate efforts to replace precious metals in homogeneous hydrogenation, molybdenum has remained largely ignored. This work reveals that a nine‐coordinate pentahydrido molybdenum complex can hydrogenate a broad range of alkenes efficiently, demonstrating that early‐metal polyhydrides can serve as genuine catalysts rather than mere
Arno Estival   +9 more
wiley   +1 more source

Caractérisation géotechnique de matériaux améliorés au liant végétal le néré (Parkia biglobosa) pour la stabilisation des sols routiers en Côte d’Ivoire

open access: yesRevue Congolaise des Sciences et Technologies
Le développement des infrastructures routières en matière de construction, d’amélioration et d’entretien exige l’amélioration des propriétés mécaniques et/ou chimiques des matériaux.
N’dri N’dri   +3 more
doaj   +1 more source

Multi-objective optimisation of bio-based thermal insulation materials in building envelopes considering condensation risk [PDF]

open access: yes, 2018
The reduction in energy demand for heating and cooling with insulation materials increases the material related environmental impact. Thus, implementing low embodied energy materials may equilibrate this trade-off.
Boer, Dieter   +5 more
core   +4 more sources

Harnessing Acoustic Cavitation Energy for the Selective Degradation of Impurities in Glucose Syrup

open access: yesChemistry – A European Journal, EarlyView.
The energy released during the implosion of acoustic cavitation bubbles can be harnessed and selectively transferred to a target solute, enabling its specific decomposition without degrading other solutes present in the solution. This proof of concept was demonstrated in the degradation of impurities present in trace amount in glucose syrup.
Shambel Getachew Wasse   +2 more
wiley   +1 more source

Modélisation, caractérisation, simulation et interprétation du comportement thermique de la paroi à inertie faible d’une serre tunnel expérimentale à l’aide du quotient de Bibi CB (.)

open access: yesRevue des Énergies Renouvelables, 2013
La serre tunnel agricole classique est largement répandue dans les pays méditerranéens, malgré les insuffisances qu’elle présente, notamment la surchauffe pendant le jour et le refroidissement nocturne intense, qui parfois se traduit par l’inversion ...
S. Bendimerad   +6 more
doaj  

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble   +7 more
wiley   +1 more source

Optimisation des couts des bâtiments en béton arme au Tchad : une étude qualitative des solutions innovantes adoptées dans la conception [PDF]

open access: yesAkofena
Résumé : Cette recherche porte sur l’optimisation du coût global durable des bâtiments en béton armé, en mettant en lumière les perceptions et pratiques des acteurs locaux.
Abdoulaye BICHARA, Hammouda ABDELAZIZ & Koina RODOUMTA
doaj   +1 more source

Model B4 : multi-decade creep and shrinkage prediction of traditional and modern concretes [PDF]

open access: yes, 2014
To improve the sustainability of concrete infrastructure, engineers face the challenge of incorporating new concrete materials while pushing the expected design life beyond 100 years.
Bazant, Z. P.   +2 more
core   +1 more source

Electrochemical Behavior of Magnetron-Sputtered Al–Cu Alloy Films in Sulfate Solutions [PDF]

open access: yes, 2007
Model alloys, generated by magnetron sputtering, have been employed to understand the role of copper on the corrosion behavior of aluminum alloys. Binary Al–Cu alloys, with copper contents between 0 and 100 atom %, were synthesized with well-controlled ...
Blanc, Christine   +6 more
core   +4 more sources

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