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UAB Digital Repository of Documents 35 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
1.
Effects of attention on the production of Spanish consonants by SFL learners / Liu, Zhao (East China Normal University) ; Machuca Ayuso, María Jesús (Universitat Autònoma de Barcelona)
The aim of this paper is to analyse the production of Spanish stops/b, d, g, p, t, k/and liquids/l, f/by Mandarin Chinese learners of Spanish (N=10). Two different tasks were used to elicit data: one induced a focus on stops and the other a focus on liquids. [...]
2021
Estudios de fonética experimental, Vol. 30 (2021) , p. 209-224  
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2.
9 p, 1.1 MB Use of CO2 for electrosynthesis / Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ; Peral Pérez, José (Universitat Autònoma de Barcelona. Departament de Química) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
A review of the main ideas related to the capture and valorization of CO by using electrochemical processes is presented. The advantages of using an electrode-controlled potential that provides the possibility of reducing CO to non-fossil carbon-based fuels, or of using this atmospheric pollutant in organic synthesis processes that rely on electrocarboxylation steps are outlined. [...]
2023 - 10.1016/j.coelec.2023.101392
Current Opinion in Electrochemistry, Vol. 42 (December 2023) , art. 101392  
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3.
9 p, 1.8 MB Real-time microscopy of the relaxation of a glass / Ruiz Ruiz, Marta (Institut Català de Nanociència i Nanotecnologia) ; Vila Costa, Ana (Universitat Autònoma de Barcelona. Departament de Física) ; Bar, Tapas (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez Tinoco, Cristian (Institut Català de Nanociència i Nanotecnologia) ; González Silveira, Marta (Universitat Autònoma de Barcelona. Departament de Física) ; Plaza, José A. (Institut de Microelectrònica de Barcelona) ; Alcalá, Jorge (Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica) ; Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez-Viejo, Javier (Universitat Autònoma de Barcelona. Departament de Física)
The understanding of the dynamics of a glass above its devitrification temperature remains incomplete. Here, we build a spatio-temporal map of the relaxation dynamics of a highly stable glass into its supercooled liquid using real-time atomic force microscopy imaging. [...]
2023 - 10.1038/s41567-023-02125-0
Nature Physics, Vol. 19, Issue 10 (October 2023) , p. 1509-1515  
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4.
Reflective-mode phase-variation submersible sensor for liquid characterization / Su, Lijuan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Vélez Rasero, Paris (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Casacuberta Orta, Pau (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Muñoz Enano, Jonathan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Gil Barba, Marta (Universidad Politécnica de Madrid. Departamento de Ingeniería Audiovisual y Comunicaciones) ; Martín, Ferran (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
A one-port reflective-mode microwave submersible sensor based on an open-ended step-impedance microstrip line configuration, operating at a single frequency, useful for the dielectric characterization of liquids and the measurement of liquid composition in binary mixtures, is proposed in this article. [...]
2023 - 10.1109/TIM.2023.3308228
IEEE transactions on instrumentation and measurement, Vol. 72 (2023)  
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5.
26 p, 1.3 MB Study of P(VDF-co-HFP)-ionic liquid based ionogels for designing flexible displays / Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ; Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
In flexible displays, solid electrolytes promote electron-transfer without compromising system integrity. Ionogels (IGs) are now preferred among other solid electrolytes, e. g. inorganic and hydrogel electrolytes, for being easier to produce than the former and showing excellent properties, including high ionic conductivities, broad electrochemical window, transparency, flexibility, and non-solvent volatility than the latter. [...]
2020 - 10.1016/j.molliq.2020.114033
Journal of Molecular Liquids, Vol. 318 (November 2020) , art. 114033  
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6.
30 p, 2.5 MB Electrochemical tools to disclose the electrochemical reduction mechanism of CO2 in aprotic solvents and ionic liquids / Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ; Ribas Saurí, Esteve (Universitat Autònoma de Barcelona. Departament de Química) ; Richart, Clara (Universitat Autònoma de Barcelona. Departament de Química) ; Gallardo, Iluminada (Universitat Autònoma de Barcelona. Departament de Química) ; Faraudo, Jordi (Institut de Ciència de Materials de Barcelona) ; Shaw, Scott K. (University of Iowa. Department of Chemistry) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
Carbon dioxide (CO2) plays a key role in controlling the temperature of the Earth. But the increase in the concentration of CO2 in the atmosphere brings with it a series of consequences, originating several environmental problems. [...]
2021 - 10.1016/j.jelechem.2021.115411
Journal of Electroanalytical Chemistry, Vol. 895 (August 2021) , art. 115411  
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7.
27 p, 1.9 MB Sustainable and efficient electrosynthesis of naproxen using carbon dioxide and ionic liquids / Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ; Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ; Gallardo, Iluminada (Universitat Autònoma de Barcelona. Departament de Química) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
The use of CO2 as a C1 carbon source for synthesis is raising increasing attention both as a strategy to bring value to carbon dioxide capture technologies and a sustainable approach towards chemicals and energy. [...]
2020 - 10.1016/j.chemosphere.2019.125557
Chemosphere, Vol. 245 (April 2020) , art. 125557  
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8.
6 p, 2.5 MB Suitability of blended ionic liquid-dimethylsulfoxide electrolyte for lithium-oxygen battery / Knipping, Etienne (Universitat Autònoma de Barcelona. Departament de Química) ; Aucher, Christophe (Leitat Technological Center (Terrassa)) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ; Aubouy, Laurent (Leitat Technological Center (Terrassa))
Electrolytes composed of dimethylsulfoxide (DMSO), 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMI TFSI) and LiClO are characterized for application in lithium-oxygen batteries. The increase of EMI TFSI content in the electrolyte enables to improve its thermal stability and to decrease the overpotential of the cell. [...]
2019 - 10.1002/batt.201800078
Batteries and Supercaps, Vol. 2, Issue 3 (March 2019) , p. 200-204  
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9.
12.8 MB Relación entre percepción y producción en una L3. La adquisición de las líquidas del español por sinohablantes / Sun, Ce ; Machuca Ayuso, María Jesús, dir.
Aquesta tesi constitueix un estudi experimental al voltant de l'adquisició de les consonants líquides de l'espanyol per part dels sinoparlants. L'anàlisi de les consonants ròtica simple, rotica múltiple i lateral alveolar des de dues perspectives diferents ens permet relacionar els processos de producció i de percepció del parlant aprenent a l'hora d'adquirir d'una manera completa el sistema fonològic de l'espanyol. [...]
La presente tesis constituye un estudio experimental en torno a la adquisición de las consonantes líquidas del español por parte de los sinohablantes. El análisis de las consonantes rótica simple, rotica múltiple y lateral alveolar desde dos perspectivas diferentes nos permite relacionar los procesos de producción y de percepción del hablante aprendiz a la hora de adquirir de un modo completo el sistema fonológico del español. [...]
This dissertation is an experimental study about the acquisition of the liquid consonants of Spanish by Chinese speakers. The analysis of tap, trill and alveolar lateral from two different perspectives allows us to relate the processes of production and perception of the learner when they have fully acquired the phonological system of Spanish. [...]
2022  
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10.
7 p, 2.5 MB Spectroelectrochemical studies of electrochromic diarylethene ionic Liquids : From solution to ionogel based devices / Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ; Cruz, Hugo (Nova University of Lisbon. Nova School of Science and Technology) ; Jordão, Noemí (Nova University of Lisbon. Nova School of Science and Technology) ; Giménez-Gómez, Pablo (Institut de Microelectrònica de Barcelona) ; Zalewska, Karolina (Nova University of Lisbon. Nova School of Science and Technology) ; Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona) ; Santos, Andreia F.M. (Nova University of Lisbon. Nova School of Science and Technology) ; Hernando Campos, Jordi (Universitat Autònoma de Barcelona. Departament de Química) ; Branco, Luís C. (Nova University of Lisbon. Nova School of Science and Technology) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
This study establishes the photoelectrochromic properties of four diarylethene ionic liquids (DAE-ILs) composed of a diarylethene dicarboxylate (DAE) moiety, as counter-anion, and different organic cations ([Cmim], [CPyr] , [N], [P]). [...]
2022 - 10.1016/j.microc.2022.107870
Microchemical Journal, Vol. 182 (November 2022) , art. 107870  
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