Results 41 to 50 of about 92,390 (150)

Characterization of cycle-to-cycle variations in a natural gas spark ignition engine [PDF]

open access: yes, 2015
Producción CientíficaSe presenta un estudio de la influencia del dosado o relación combustible/aire y del régimen de giro de un motor de combustión interna alternativo sobre la dispersión cíclica del motor de encendido provocado funcionando con mezclas
Giménez Olavarría, Blanca   +3 more
core   +2 more sources

Thermo‐Fluorescent Bactericidal Quantum Dots Based Smart Multifunctional Textiles via Molecular Surface Engineering and 3D‐Printed Interlocked Architectures

open access: yesAdvanced Healthcare Materials, EarlyView.
A versatile approach is presented for fabricating smart multifunctional textiles by integrating thermo‐fluorescent carbon dot/polymer nanocomposite coatings with 3D‐printed interlocked architectures. The fabrics exhibit temperature‐responsive fluorescence, durable hydrophobicity, strong antibacterial and antioxidant activity, and enhanced UV protection.
Poushali Das   +8 more
wiley   +1 more source

Medida de la temperatura superficial del carbonizado de Haya en un reactor de lecho fluido mediante pirometría para aclarar el efecto del CO2 en oxicombustión [PDF]

open access: yes, 2016
Debido a la necesidad de reducir las emisiones de CO2, causantes de la intensificación del efecto invernadero y el calentamiento global, surge como solución la técnica de captura de CO2 mediante oxi-combustión.
Berdugo Vilches, Ana
core  

The amazing chemistry of controlled deflagrations [PDF]

open access: yes, 2020
Las deflagraciones realizadas en condiciones controladas y con pequeñas cantidades de combustibles (etanol, acetileno y polvo de licopodio) proporcionan un fructífero recurso didáctico para que el profesorado consiga aumentar la atención del alumnado y
Pérez de Azpeitia, Fernando Ignacio de Prada
core   +2 more sources

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

open access: yesAdvanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu   +8 more
wiley   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Movimiento de un Fluido con Aportación de Calor en Toberas de Sección Variable [PDF]

open access: yes, 1951
Se destacan primeramente la importancia y aplicaciones de la cuestión que aquí va a tratarse, señalando las simplificaciones que sé admiten en su estudio. Previamente se considera el proceso de combustión o de aportación de calor en una tobera de sección
Sánchez Tarifa, Carlos
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

A study of the combustion problems of solid materials at conditions existing in space stations [PDF]

open access: yes, 1999
Combustión of a solid at microgravity conditions at zero or at very small forced flow velocities is in the first place discussed, pointing out that this is the basic process of a fire in a manned spacecraft, in which might exist small air currents ...
López Juste, Gregorio   +1 more
core  

Effect of Atomic Layer Deposition of Ultra‐Thin Oxide on Reactivity and Durability of Perovskite Oxygen Electrodes

open access: yesAdvanced Materials, EarlyView.
This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo   +8 more
wiley   +1 more source

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