Mostrando ítems 21-40 de 421

    • Innovative flow-through reaction system for the sustainable production of phenolic monomers from lignocellulose catalyzed by supported Mo2C 

      Maisterra Udi, Maitane Upna; Atienza Martínez, María Upna Orcid; Hablich Alvarracin, Karina Lissett Upna; Moreira, Rui; Martínez Merino, Víctor Upna Orcid; Gandía Pascual, Luis Upna Orcid; Cornejo Ibergallartu, Alfonso Upna Orcid; Bimbela Serrano, Fernando Upna Orcid (Wiley, 2024)   Artículo / Artikulua  OpenAccess
      Molybdenum carbide supported on activated carbon (β-Mo2C/AC) has been tested as catalyst in the reductive catalytic fractionation (RCF) of lignocellulosic biomass both in batch and in Flow-Through (FT) reaction systems. ...
    • From fundamental materials chemistry to sensing applications: unravelling the water adsorption mechanism of a luminescent optical fibre sensor membrane 

      Cruz Quesada, Guillermo Upna Orcid; Rosales Reina, Beatriz; López Torres, Diego Upna Orcid; Reinoso, Santiago Upna Orcid; López Ramón, María Victoria; Arzamendi Manterola, María Cruz Upna Orcid; Elosúa Aguado, César Upna Orcid; Espinal Viguri, Maialen Upna Orcid; Garrido Segovia, Julián José Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      This work provides insight into the correlation between the luminescent response of a water-vapour optical fibre sensor and the textural properties of its lanthanide-doped silica coating. To this end, a library of 16 silica ...
    • Large-scale unsupervised spatio-temporal semantic analysis of vast regions from satellite images sequences 

      Echegoyen Arruti, Carlos; Pérez, Aritz; Santafé Rodrigo, Guzmán Upna Orcid; Pérez-Goya, Unai Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (Springer, 2024)   Artículo / Artikulua  OpenAccess
      Temporal sequences of satellite images constitute a highly valuable and abundant resource for analyzing regions of interest. However, the automatic acquisition of knowledge on a large scale is a challenging task due to ...
    • Olive industry liquid waste from trash to metal adsorbent for wastewater purifcation 

      Ishraydeh, Isra; Hamed, Othman; Deghles, Abdalhadi; Jodeh, Shehdeh; Azzaoui, Khalil; Hasan, Abdelfattah; Assali, Mohyeddin; Jaseer, Ataa; Mansour, Waseem; Hacıosmanoğlu, Gül Gülenay; Can, Zehra Semra; Algarra González, Manuel (BMC, 2024)   Artículo / Artikulua  OpenAccess
      The development of biobased polymeric materials for wastewater purification has become a demand due to the growing need for water free of hazardous metal ions for safe purposes. The organic components of the OLLW including ...
    • Gold nanoparticles capped with a novel titanium(iv)-containing polyoxomolybdate cluster: selective and enhanced bactericidal effect against Escherichia coli 

      Paesa, Mónica; Almazán, Fernando; Yus Argón, Cristina; Sebastián, Víctor; Arruebo Gordo, Manuel; Gandía Pascual, Luis Upna Orcid; Reinoso, Santiago Upna Orcid; Pellejero, Ismael Upna Orcid; Mendoza, Gracia (Wiley, 2024)   Artículo / Artikulua  OpenAccess
      Bacterial infections are a public health threat of increasing concern in medical care systems; hence, the search for novel strategies to lower the use of antibiotics and their harmful effects becomes imperative. Herein, ...
    • A new oxidative pathway of nitric oxide production from oximes in plants 

      López Gómez, Pedro Upna Orcid; Buezo Bravo, Javier Upna; Urra Rodríguez, Marina; Cornejo Ibergallartu, Alfonso Upna Orcid; Esteban Terradillos, Raquel; Fernández de los Reyes, Jorge; Urarte Rodríguez, Estíbaliz Upna; Rodríguez-Dobreva, Estefanía; Chamizo Ampudia, Alejandro Upna; Eguaras, Alejandro; Wolf, Sebastian; Marino Bilbao, Daniel Upna Orcid; Martínez Merino, Víctor Upna Orcid; Morán Juez, José Fernando Upna Orcid (Cell Press, 2024)   Artículo / Artikulua
      Nitric oxide (NO) is an essential reactive oxygen species and a signal molecule in plants. Although several studies have proposed the occurrence of oxidative NO production, only reductive routes for NO production, such ...
    • Effect of oxygen addition, reaction temperature and thermal treatments on syngas production from biogas combined reforming using Rh/alumina catalysts 

      Navarro Puyuelo, Andrea; Reyero Zaragoza, Inés Upna Orcid; Moral Larrasoaña, Ainara Upna; Bimbela Serrano, Fernando Upna Orcid; Bañares, Miguel A.; Gandía Pascual, Luis Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Dry reforming and partial oxidation of biogas were studied using 0.5 wt.% Rh/Al2O3 catalysts, both inhouse prepared and commercial. The effects of O2 addition on syngas yield and biogas conversion were studied at 700 C ...
    • How bimetallic CoMo carbides and nitrides improve CO oxidation 

      Villasana, Yanet; García-Macedo, Jorge A.; Navarro Puyuelo, Andrea; Boujnah, Mourad; Reyero Zaragoza, Inés Upna Orcid; Lara-García, Hugo A.; Muñiz, Jesús; Bimbela Serrano, Fernando Upna Orcid; Gandía Pascual, Luis Upna Orcid; Brito, Joaquin L.; Méndez, Franklin J. (Elsevier, 2023)   Artículo / Artikulua
      CO elimination is an important step for the proper management of gaseous effluents from various processes, thus avoiding adverse impacts on the environment and human health. In this study, different bimetallic Al2O3-supported ...
    • The role of the fiber/bead hierarchical microstructure on the properties of pvdf coatings deposited by electrospinning 

      Vicente Gómara, Adrián Upna Orcid; Rivero Fuente, Pedro J. Upna Orcid; Palacio, José F. Upna Orcid; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Among the various polymeric options employed for the deposition of electrospun coat-ings, poly(vinylidene fluoride) (PVDF) has been widely investigated thanks to its excellent mechanical properties, high chemical resistance, ...
    • Body composition and resting energy expenditure in a group of children with achondroplasia 

      Garde-Etayo, Laura; Trandafir, Paula Camelia Upna Orcid; Saint-Laurent, Céline; Ugarte Martínez, María Dolores Upna Orcid; Insausti Serrano, Ana María Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Background: Persons with achondroplasia develop early obesity, which is a comorbidity associated with other complications. Currently, there are no validated specific predictive equations to estimate resting energy expenditure ...
    • Antifungal activity of chitosan/poly (ethylene oxide) blend electrospun polymeric fiber mat doped with metallic silver nanoparticles 

      Murillo Larrey, Leire; Rivero Fuente, Pedro J. Upna Orcid; Sandúa Fernández, Xabier; Pérez Garrido, Gumersinda Upna Orcid; Palacio, José F.; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      In this work, the implementation of advanced functional coatings based on the combination of two compatible nanofabrication techniques such as electrospinning and dip-coating technology have been successfully obtained for ...
    • Unpaired spatio-temporal fusion of image patches (USTFIP) from cloud covered images 

      Goyena Baroja, Harkaitz; Pérez Goya, Unai Upna Orcid; Montesino San Martín, Manuel Upna Orcid; Militino, Ana F. Upna Orcid; Wang, Qunming; Atkinson, Peter M.; Ugarte Martínez, María Dolores Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      Spatio-temporal image fusion aims to increase the frequency and resolution of multispectral satellite sensor images in a cost-effective manner. However, practical constraints on input data requirements and computational ...
    • α-Hydroxy ketones as masked ester donors in Brønsted base catalyzed conjugate additions to nitroalkenes 

      Olaizola, Iurre; Campano, Teresa E.; Iriarte, Igor; Vera, Silvia; Mielgo, Antonia; García Castillo, Jesús María Upna Orcid; Odriozola Ibarguren, José Manuel Upna Orcid; Oiarbide, Mikel; Palomo, Claudio (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      The catalyst-controlled enantioselective direct addition reaction of enolizable esters and related carboxylic acid derivatives to p electrophiles remains a difficult synthetic transformation. In this study, the suitability ...
    • Acid-catalyzed etherification of glycerol with tert-butanol: reaction monitoring through a complete identification of the produced alkyl ethers 

      Cornejo Ibergallartu, Alfonso Upna Orcid; Reyero Zaragoza, Inés Upna Orcid; Campo Aranguren, Idoia; Arzamendi Manterola, María Cruz Upna Orcid; Gandía Pascual, Luis Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      Higher tert-Butyl glycerol ethers (tBGEs) are interesting glycerol derivatives that can be produced from tert-butyl alcohol (TBA) and glycerol using an acid catalyst. Glycerol tert-butylation is a complex reaction that ...
    • Dynamic testing in columns for soil heavy metal removal for a car park SUDS 

      López Rodríguez, José Javier Upna Orcid; Echeverría Morrás, Jesús Upna Orcid; San Martín González, Iban Upna; Delgado Zabala, Oihane (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      The increase in urban runoff brought about by a rise in impermeable surfaces has triggered the alteration and pollution of many aquatic systems. The overall goal of this research was to design a ‘Sustainable Urban Drainage ...
    • Flexible Bayesian P-splines for smoothing age-specific spatio-temporal mortality patterns 

      Goicoa Mangado, Tomás; Adin Urtasun, Aritz Upna Orcid; Etxeberria Andueza, Jaione Upna Orcid; Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (SAGE, 2019)   Artículo / Artikulua  OpenAccess
      In this paper age-space-time models based on one and two-dimensional P-splines with B-spline bases are proposed for smoothing mortality rates, where both xed relative scale and scale invariant two-dimensional penalties ...
    • In spatio-temporal disease mapping models, identifiability constraints affect PQL and INLA results 

      Goicoa Mangado, Tomás; Adin Urtasun, Aritz Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Hodges, James S. (Springer, 2018)   Artículo / Artikulua  OpenAccess
      Disease mapping studies the distribution of relative risks or rates in space and time, and typically relies on generalized linear mixed models (GLMMs) including fixed effects and spatial, temporal, and spatio-temporal ...
    • Kinetics of the acid-catalyzed hydrolysis of tetraethoxysilane (TEOS) by 29Si NMR spectroscopy and mathematical modeling 

      Echeverría Morrás, Jesús Upna Orcid; Moriones Jiménez, Paula Upna Orcid; Arzamendi Manterola, María Cruz Upna Orcid; Garrido Segovia, Julián José Upna Orcid; Gil Idoate, María José Upna Orcid; Cornejo Ibergallartu, Alfonso Upna Orcid; Martínez Merino, Víctor Upna Orcid (Springer, 2018)   Artículo / Artikulua  OpenAccess
      Tetraethoxysilane (TEOS) is widely used to synthesize siliceous material by the sol–gel process. However, there is still some disagreement about the nature of the limiting step in the hydrolysis and condensation reactions. ...
    • Comprehensive kinetics of hydrolysis of organotriethoxysilanes by 29Si NMR 

      Moriones Jiménez, Paula Upna Orcid; Arzamendi Manterola, María Cruz Upna Orcid; Cornejo Ibergallartu, Alfonso Upna Orcid; Garrido Segovia, Julián José Upna Orcid; Echeverría Morrás, Jesús Upna Orcid (American Chemical Society, 2019)   Artículo / Artikulua  OpenAccess
      The kinetics of several representative hybrid precursors were studied via 29Si NMR: three alkyl precursors, methyltriethoxysilane, ethyltriethoxysilane, and propyltriethoxysilane; as well as two unsaturated radicals, ...
    • Outstanding performance of rehydrated Mg-Al hydrotalcites as heterogeneous methanolysis catalysts for the synthesis of biodiesel 

      Navajas León, Alberto Upna Orcid; Campo Aranguren, Idoia; Moral Larrasoaña, Ainara Upna; Echave, Javier; Sanz Iturralde, Oihane; Montes, Mario; Odriozola, José Antonio; Arzamendi Manterola, María Cruz Upna Orcid; Gandía Pascual, Luis Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      There is still a need for active, selective and stable heterogeneous catalysts for the synthesis of biodiesel. In this work, magnesium-aluminium hydrotalcites with Mg/Al molar ratios within the 1.5–5 range were synthesized ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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