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Now showing items 6504-6523 of 38446
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Co-hydrocracking of polyolefinic waste plastic with an intermediate stream of refinery
(2021-01-21)This thesis is focused in hydrotreating and hydrocracking secondary refinery streams that have been previously hydrotreated (drastically reducing their heteroatom content) for their valorization both, alone and co-processed ... -
CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes
(MDPI, 2021-11-24)The monolithic materials of reduced graphene oxide (rGO) can be used successfully in CO2 adsorption. Here, the incorporation of CeO2 particles with and without polymer brushes grafted from the particles showed that the ... -
CO2 cryogenic milling of Inconel 718: cutting forces and tool wear Author links open overlay panel
; ; Urbicain Pelayo, Gorka
; ; ; (Elsevier, 2020-07)
Machining Inconel 718 alloy is a challenge due to its low machinability. This thermal resis-tant alloy combines high strength even at high temperatures with strain hardening tendency that causes high forces and extreme ... -
CO2 revalorization for the organocatalytic synthesis of cyclic carbonates and vanillin-based non-isocyanate polyurethanes (NIPUSs).
(2020-09-05)El Capítulo 1 se describe el enorme potencial del CO2 para la síntesis de productos de valor añadido. Dentro de los procesos químicos en los que el CO2 está involucrado, la síntesis organocatalizada de carbonatos cíclicos ... -
CO2 valorization into light olefins over OX/ZEO tandem catalyst
(2023-10-10)Se ha llevado a cabo un estudio sobre la hidrogenación directa de CO, CO2 y sus mezclas para conseguir olefinas ligeras. Para ello, se han sintetizado diferentes catalizadores metálicos para la hidrogenación de CO/CO2 a ... -
CO2-ak bultzatutako gizarte baterantz: landareetatik ikasten
Huizi, Uxua; San Sebastian, Eider; (Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2020)
The current energy demand has led to a significant decrease in fossil fuels and to an increase in CO2 emissions, so the idea of a society propelled by alternative energy forms has gained strength. The role of CO2 in climate ... -
CO2-aren balorizazio zuzena hidrokarburoak ekoizteko
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2021)Mitigating the climate change caused by fossil fuels burning is one of the major challenges of today’s society. The most abundant (75 %) of the greenhouse gases emitted by these combustions is carbon dioxide (CO2). Therefore, ... -
CO2-aren erabilera, berotegi-efektua murrizteko estrategia
; ; Sierra García, Irene; (Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2020)
Climate change - caused mainly by the utilization of fossil fuels - has aroused great interest in the last decades. Among the greenhouse gases, carbon dioxide (CO2) is the most abundant, and thus, limiting its emissions ... -
CO2-ren bahiketa, klima-aldaketa arintzeko estrategia
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2016)Gero eta arreta gehiago eskaintzen ari zaio klima-aldaketari. Gizakion jardueraren eraginez Lurraren tenperatura igotzen ari da. Berotegi-efektuko gasen artean karbono dioxidoa (CO2) ugariena da, eta energia-iturri fosilen ... -
CO2-sourced polycarbonates as solid electrolytes for room temperature operating lithium batteries
(Royal Society of Chemistry, 2019-03-19)In the last few years, polycarbonates have been identified as alternatives to poly(ethylene oxide) as polymer electrolytes for lithium battery applications. In this work, we show the design of CO2-sourced polycarbonates ... -
Co3O4 hollow nanotubes for the catalytic oxidation of C2-chlorinated VOCs
; Gutiérrez Ortiz, José Ignacio; López Fonseca, Rubén ; (Elsevier, 2023-04-07)
Structured Co3O4 catalysts with a hollow nanotube morphology were prepared by several synthesis routes based on the Kirkendall effect. The resulting samples were kinetically evaluated in the gas-phase oxidation of vinyl ... -
Co3O4-based catalysts for methane emission control in natural gas engines: from bulk catalysts to open cell foam structured catalysts
Choya Atencia, Andoni (2021-01-29)
La comercialización de vehículos impulsados con gas natural es una estrategia interesante parareducir las emisiones en el sector transporte. Sin embargo, su consolidación en el mercadoexige el control de las emisiones ... -
Coalitional games with veto players: Myopic and farsighted behavior
(Departamento de Fundamentos del Análisis Económico I, 2013-10-10)This paper studies an allocation procedure for coalitional games with veto players. The procedure is similar to the one presented by Dagan et al. (1997) for bankruptcy problems. According to it, a player, the proposer, ... -
CoAP liburutegian konparaketa praktiko eta teorikoa
(2017-06-19)Azken urteotan, Gauzen Internet edo Internet of Things (IoT) zabaltzen joan da eta hainbat protokolo, inplementazio eta erabilpen kasu garatu dira. Komunikazio protokoloen artean, Contrained Application Protocol (CoAP) ... -
Coarsening Kinetics of Complex Macromolecular Architectures in Bad Solvent
(MDPI, 2020-03-02)This study reports a general scenario for the out-of-equilibrium features of collapsing polymeric architectures. We use molecular dynamics simulations to characterize the coarsening kinetics, in bad solvent, for several ... -
Coastal and marine pollution in the Anthropocene
Marigómez Allende, Juan Antonio (Springer, 2023-12)
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Coastal gradients of small microplastics and associated pollutants influenced by estuarine sources
(Elsevier, 2022)Small microplastics (SMPs) in the gulf of Cadiz was sampled at 5 m depth by pumping it through the ship's pipe system and filtered through a 45 mu m mesh size net. Our study reveals that higher densities have been found ... -
Cobalt aluminate spinel-derived catalysts for glycerol aqueous phase reforming
Reynoso Estévez, Alberto José; Ayastuy Arizti, José Luis ; ; (Elsevier, 2018-08-02)
Catalytic activity at mild (235 °C/3.5 MPa) and severe (260 °C/5.0 MPa) APR conditions was investigated over catalysts based on cobalt aluminate spinel synthetized by coprecipitation. Co/Al ratio was varied and physicochemical ... -
Cobertura informativa y visibilidad mediática del Foro Social Mundial en una esfera pública crecientemente transnacionalizada
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2012)The World Social Forum (WSF) held in Belem de Pará (Brazil) during December 2009 was both an international political and media phenomenon within an increasingly transnationalized public sphere. However, the way in which ... -
Cobertura radicular obtenida tras el tratamiento de recesiones gingivales: estudio retrospectivo de dos técnicas quirúrgicas
(2016-01-08)Los diferentes estudios epidemiológicos realizados sobre la enfermedad periodontal en seres humanos han demostrado la gran prevalencia de las recesiones gingivales, lo que hace que sean motivo de demanda de tratamiento. A ...