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Listar por palabra clave "Oxygen"

Mostrando ítems 1-20 de 35

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A permeable cuticle is associated with the release of reactive oxygen species and induction of innate immunity

L'Haridon, Floriane; Besson-Bard, Angelique; Binda, Matteo; Serrano Mateo, Mario; Abou-Mansour, Eliane; Balet, Francine; Schoonbeek, Henk-Jan; Hess, Stephane; Mir Moreno, Ricardo; Leon Ramos, Jose; Lamotte, Olivier; Metraux, Jean-Pierre (Public Library of Science, 2011)

[EN] Wounded leaves of Arabidopsis thaliana show transient immunity to Botrytis cinerea, the causal agent of grey mould. Using a fluorescent probe, histological staining and a luminol assay, we now show that reactive oxygen ...
A photophysical approach to investigate the photooxidation mechanism of pesticides: Hydroxyl radical versus electron transfer

Marín García, Mª Luisa; Lhiaubet, Virginie Lyria; Santos-Juanes Jordá, Lucas; Soler Escoda, Juan Miguel; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Miranda Alonso, Miguel Ángel (Elsevier, 2011-03-14)

[EN] The role of hydroxyl radical in different solar photocatalytic processes, namely photo-Fenton, titanium dioxide-based oxidation and organic photocatalysis (triphenylpyrylium) has been investigated. Using a methodology ...
Activator and repressor functions of the Mot3 transcription factor in the osmostress response of Saccharomyces cerevisiae

Martínez Montañés, Fernando Vicente; Rienzo, Alessandro; Poveda Huertes, Daniel; Pascual-Ahuir Giner, María Desamparados; Proft, Markus Hans (American Society for Microbiology, 2013-05)

[EN] Mot3 and Rox1 are transcriptional repressors of hypoxic genes. Both factors recently have been found to be involved in the adaptive response to hyperosmotic stress, with an important function in the adjustment of ...
Barrier properties of sodium caseinate films as affected by lipid composition and moisture content

Fabra Rovira, María José; Talens Oliag, Pau; GAVARA CLEMENTE, RAFAEL; Chiralt Boix, Mª Amparo (Elsevier, 2012-04)

This work analyses the effect of lipid addition (oleic acid, beeswax and oleic acid-beeswax mixtures) as well as the influence of the relative humidity (RH), or the equilibrium water content of the films, on the permeability ...
Cobalt(II) Bipyrazolate Metal-Organic Frameworks as Heterogeneous Catalysts in Cumene Aerobic Oxidation: A Tag-Dependent Selectivity

Nowacka, Anna Elzbieta; Vismara, R.; Mercuri, G.; Moroni, M.; Palomino Roca, Miguel; Domasevitch, K.; di Nicola, C.; Pettinari, C.; Giambastiani, G.; Llabrés i Xamena, Francesc Xavier; Galli, S.; Rossin, A. (American Chemical Society, 2020-06-15)

[EN] Three metal-organic frameworks with the general formula Co(BPZX) (BPZX(2-) = 3-X-4,4'-bipyrazolate, X = H, NH2, NO2) constructed with ligands having different functional groups on the same skeleton have been employed ...
Comparison of cryogenic and membrane oxygen production implemented in the Graz cycle

Gutiérrez, Fabio Alberto; García-Cuevas González, Luis Miguel; Sanz, Wolfgang (Elsevier, 2022-11-01)

[EN] One of the most promising technologies to decrease greenhouse gas emissions is carbon capture and storage (CCS). Oxy-fuel combustion, in which high-purity oxygen mixed with flue gases is used to burn fuels, reduces ...
Diseño y fabricación de un banco de pruebas hidráulico para test de erosión y corrosión

Carrió Pérez, Pedro (Universitat Politècnica de València, 2017-10-20)

[EN] The neutron time-of-flight facility at CERN is a source of high flux of neutrons obtained by the spallation process of 20 GeV/c protons from the CERN Proton Synchrotron (PS) onto a high purity (99.99 %) lead target. A ...
Edible films and coatings to prevent the detrimental effect of oxygen on food quality: Possibilities and limitations

Bonilla Lagos, Maria Jeannine; Atarés Huerta, Lorena María; Vargas, Maria; Chiralt, A. (Elsevier, 2012-05)

[EN] Oxygen has a deleterious effect on the quality of a wide variety of food products. The application of edible films and coatings to food products represents a new approach to solve this problem. Edible films and coatings ...
Electrochemical Analysis of Catalytic and Oxygen Interfacial Transfer Effects on MnO2 Deposited on Gold Electrodes

Doménech Carbó, Antonio; Sabate-Fornons, Ferran; Sabater Picot, Mª José (American Chemical Society, 2018-05-24)

[EN] A theoretical model for obtaining thermochemical and kinetic information on oxygen interfacial transfer in metal oxides deposited on gold electrodes, based in the voltammetry of immobilized particle methodology, is ...
Electrochemical monitoring of the oxidative coupling of alkynes catalyzed by triphenylphosphine gold complexes

Domenech Carbo, Antonio; Leyva Perez, Antonio; Al-Resayes, Saud I.; Corma Canós, Avelino (Elsevier, 2012-06)

Electrochemical monitoring of the oxidative coupling of alkynes in the homogeneous phase through catalytic cycles involving triphenylphosphine gold complexes and selectfluor as oxidant reveals that at least two gold species ...
Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products

Del Río García, Ana Isabel; Fernández Sáez, Javier; Molina Puerto, Javier; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Elsevier, 2011-06-15)

The electrochemical treatment of wastewaters from textile industry is a promising technique for substances which are resistant to biodegradation. This paper deals with the electrochemical decolourisation/degradation of ...
Endocrine disrupter compounds removal in wastewater using microalgae: Degradation kinetics assessment

Abargues Llamas, Miguel Rafael; Giménez García, J.B.; Ferrer, J.; Bouzas Blanco, Alberto; Seco Torrecillas, Aurora (Elsevier, 2018)

[EN] This paper describes a study carried out to determine the removal kinetics of four micropollutants (4-tert-octylphenol (OP), technical-nonylphenol (t-NP), 4-nonylphenol (4-NP) and bisphenol-A (BPA)) usually found in ...
Estudio tecno-económico de una planta de producción de hidrógeno, oxígeno y captura de dióxido de carbono a partir de Solid Oxide Electrolysis Cells (SOEC)

Sanchis i Cubas, Pau (Universitat Politècnica de València, 2021-10-11)

[ES] El siguiente proyecto consistirá en el diseño y optimización de una planta de producción de oxígeno, hidrógeno y oxicombustión (con captura de CO₂) mediante celdas SOEC (Solid Oxide Electrolysis Cell) basado en ...
Experiments on the influence of intake conditions on local instantaneous heat flux in reciprocating internal combustion engines

Desantes, J.M.; Torregrosa, A. J.; Broatch, A.; Olmeda González, Pablo Cesar (Elsevier, 2011-01)

[EN] The present study tries to be a contribution for the development of more precise theoretical models for predicting the dissipation of heat through the combustion chamber walls of reciprocating (internal combustion) ...
Fluid Dynamic Modeling of Oxygen Permeation through Mixed Ionic-Electronic Conducting Membranes

Gozálvez-Zafrilla, José M.; Santafé Moros, María Asunción; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel (ELSEVIER SCIENCE BV, 2011-08-15)

[EN] The oxygen transport in a lab-scale experimental set-up for permeation testing of oxygen transport membranes has been modeled using computational fluid dynamics using Finite Element Analysis. The modeling considered ...
Hedonic judgments of chemical compounds are correlated with molecular size

Zarzo Castelló, Manuel (MDPI, 2011)

Different psychophysical works have reported that, when a wide range of odors is assessed, the hedonic dimension is the most salient. Hence, pleasantness is the most basic attribute of odor perception. Recent studies suggest ...
High-pressure study of ScVO4 by Raman scattering and ab initio calculations

Panchal, V.; Manjón Herrera, Francisco Javier; Errandonea, D.; Rodriguez-Hernandez, P.; López-Solano, J.; Muñoz, A.; Achary, S.N.; Tyagi, A.K. (American Physical Society, 2011-02-25)

We report results of experimental and theoretical lattice-dynamics studies on scandium orthovanadate up to 35 GPa. Raman-active modes of the low-pressure zircon phase are measured up to 8.2 GPa, where the onset of an ...
Influence of cracking on oxygen transport in UHPFRC using stainless steel sensors

Martínez-Ibernón, Ana; Roig-Flores, Marta; Lliso-Ferrando, Josep Ramon; Mezquida-Alcaraz, Eduardo J.; Valcuende Payá, Manuel Octavio; Serna Ros, Pedro (MDPI AG, 2020-01)

[EN] Reinforced concrete elements frequently suffer small cracks that are not relevant from the mechanical point of view, but they can be an entrance point for aggressive agents, such as oxygen, which could initiate the ...
Influence of the irradiation wavelength on the photocatalytic activity of Au-Pt nanoalloys supported on TiO2 for hydrogen generation from water

Montes Navajas, Pedro Manuel; Serra, Marco; García Gómez, Hermenegildo (Royal Society of Chemistry, 2013)

[EN] Seven samples of P25 titania containing Au Pt nanoalloys at constant total metal loading (0.25% wt),very similar particle size (1.5 nm) and different proportions of Pt (0.0, 22.8, 27.8, 35.0, 50.0, 69.0 and 100.0% wt) ...
Intracrystalline diffusion in metal organic framework during heterogeneous catalisys: Influence of particle size on the activity of MIL-100 (Fe) for oxidation reaction

Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; Hwang, Young Kyu; Seo, You-Kyong; Corma Canós, Avelino; García Gómez, Hermenegildo (ROYAL SOC CHEMISTRY, 2011)

[EN] Three MIL-100 (Fe) samples differing in average crystal size (from 60-70 to >400 nm) have been synthesized by microwave heating using three HF/Fe 3+ ratios. Oxidation of diphenylmethane with tert-butylhydroperoxide ...