Results 41 to 50 of about 27,713 (301)
Potential Uses of Copper Wastes in the Building Sector: Inertization and Added Value Solutions
Materials Proceedings, 2021 Mining activity is the second biggest producer of waste in the European Union (EU), so to develop processes that allow the reuse of waste and the consequent creation of markets for these secondary raw materials are relevant for a desirable transition to ...
Santiago Rosado +3 more
doaj +1 more source
Proceedings of the Combustion Institute, 2015 AbstractCombustion noise is becoming increasingly important as a major noise source in aeroengines and ground based gas turbines. This is partially because advances in design have reduced the other noise sources, and partially because next generation combustion modes burn more unsteadily, resulting in increased external noise from the combustion.
Dowling, Ann P., Mahmoudi, Yasser
openaire +3 more sources
Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing
Advanced Materials, EarlyView.Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria +6 more
wiley +1 more source
Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes
Advanced Materials, EarlyView.A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang +11 more
wiley +1 more source
El efecto fiscal e impacto social de la liberalización del mercado de combustibles en el Ecuador
, 2004 El presente trabajo de investigación se enmarcará, esencialmente, dentro del Ecuador e incluirá cierta información de otros países sobre el tema del estudio. Para poder conocer la importancia de los ingresos por venta de combustibles, para el Estado, se
Sojos Echeverri, Angela María
core +1 more source
El legado tecnológico de la Segunda Guerra Mundial
Prisma Tecnológico, 2018 En este artículo presentamos cuatro de las innumerables tecnologías que fueron desarrolladas durante la segunda Guerra Mundial y de las que sus variantes hoy en día tienen un uso imprescindible en nuestro diario ...
Guadalupe González
doaj +1 more source
Lead Halide Perovskite Photoelectrocatalysis
Advanced Materials, EarlyView.Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley +1 more source
Diseño de un reactor de transesterificación para la producción de biodiesel [PDF]
, 2008 El siguiente estudio se centra en el aprovechamiento de la biomasa, en concreto, en la utilización de la biomasa para biocombustibles, y en la sustitución de los actuales combustibles fósiles por los nuevos combustibles “verdes”.
Gallardo Hipólito, Martín
core
El etanol como materia prima petroquímica
Ingeniería e Investigación, 1981 En este trabajo se presentan los aspectos relevantes de un programa a de investigación, aprobado por el CINDEC y COLCIENCIAS, sobre el desarrollo y estudio cinético de catalizadores para algunas reacciones químicas en las que el etanol está involucrado ...
Luis M. Carballo, Francisco Sánchez
doaj
Advanced Materials, EarlyView.Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang +9 more
wiley +1 more source