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Mostrando ítems 174-193 de 419

    • Icephobic and anticorrosion coatings deposited by electrospinning on aluminum alloys for aerospace applications 

      Vicente Gómara, Adrián Upna Orcid; Rivero Fuente, Pedro J. Upna Orcid; García, Paloma; Mora, Julio; Carreño, Francisco; Palacio, José F.; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Anti-icing or passive strategies have undergone a remarkable growth in importance as a complement for the de-icing approaches or active methods. As a result, many efforts for developing icephobic surfaces have been mostly ...

    • Identification of a Ni-vacancy defect in Ni-Mn-Z (Z = Ga, Sn, In): an experimental and DFT positron-annihilation study 

      Unzueta, Iraultza; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Zabala, Nerea; García, José Ángel; Plazaola, Fernando (American Physical Society, 2019)   Artículo / Artikulua  OpenAccess
      By means of experimental positron-annihilation-lifetime measurements and theoretical density functional theory (DFT) positron-lifetime calculations, vacancy-type defects in Ni50Mn50−xSnx (x = 25, 20, 15, 13, 10) and ...

    • Impact of extraction conditions on the phenolic composition and antioxidant capacity of grape stem extracts 

      Jiménez Moreno, Nerea Upna Orcid; Volpe Sainz, Francesca Upna; Moler Cuiral, José Antonio Upna Orcid; Esparza Catalán, Irene Upna; Ancín Azpilicueta, Carmen Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      The use of grape stems for the extraction of bioactive compounds to be used in the pharmaceutical, food, and cosmetic industries is a promising objective. The aim of this work is to determine the influence of the different ...

    • The importance of the urea cycle and its relationships to polyamine metabolism during ammonium stress in Medicago truncatula 

      Urra Rodríguez, Marina; Buezo Bravo, Javier Upna; Royo Castillejo, Beatriz Upna; Cornejo Ibergallartu, Alfonso Upna Orcid; López Gómez, Pedro Upna Orcid; Cerdán Ruiz, Daniel; Esteban Terradillos, Raquel; Martínez Merino, Víctor Upna Orcid; Gogorcena, Yolanda; Tavladoraki, Paraskevi; Morán Juez, José Fernando Upna Orcid (Oxford University Press, 2022)   Artículo / Artikulua  OpenAccess
      The ornithine–urea cycle (urea cycle) makes a signifcant contribution to the metabolic responses of lower photosynthetic eukaryotes to episodes of high nitrogen availability. In this study, we compared the role of the plant ...

    • Improved adhesion of the DCL coating using HiPIMS with positive pulses and plasma immersion pretreatment 

      Gómez Alonso, Íñigo Upna Orcid; Santiago, José A.; Fernández, Iván; Palacio, José F.; Diaz, Cristina; Mändl, Stephan; García Lorente, José Antonio Upna Orcid; Claver Alba, Adrián Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Diamond-like carbon (DLC) coatings are used due to their extraordinary tribomechanical properties, great hardness, high elastic modulus, high wear resistance, low friction coefficient and chemical inertness, which provide ...

    • Improved photocatalytic and antibacterial performance of Cr doped TiO2 nanoparticles 

      Gómez Polo, Cristina Upna Orcid; Larumbe Abuin, Silvia Upna; Gil Bravo, Antonio Upna Orcid; Muñoz Labiano, Delia Upna Orcid; Rodríguez Fernández, L.; Fernández Barquín, Luis; García-Prieto, Ana; Fernández-Gubieda, María Luisa; Muela, Alicia (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      The effect of Cr and N doping in the adsorption capacity, photocatalytic properties and antibacterial response of TiO2 anatase nanoparticles is analyzed. The nanoparticles (N-TiO2, Cr-TiO2 and Cr/N-TiO2) were prepared by ...

    • Improvement of the adsorption properties of an activated carbon coated by titanium dioxide for the removal of emerging contaminants 

      Taoufik, Nawal; Elmchaouri, Abdellah; Anouar, Fatna; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Three activated carbon coated titanium dioxide composites are evaluated as adsorbents for the removal of three pharmaceutical compounds: clofibric, gallic and salicylic acids from aqueous solutions. These composite materials ...

    • Improvement of the tribocorrosion properties of cemented carbide (WC-Tic-Co) samples with PVD coating 

      García Lorente, José Antonio Upna Orcid; Claver Alba, Adrián Upna Orcid; Marques, Mikel; Almandoz Sánchez, Eluxka Upna Orcid; Fernández de Ara, Jonathan; Palacio, José F.; Azkona, Ibon (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      This study aims to investigate the improvement of the tribocorrosion properties of WC-TiC-Co substrates by coating them with hard coatings such as AlCrSiN using cathodic arc deposition. WC-TiC-Co is commonly used in the ...

    • Improving the quality of satellite imagery based on ground-truth data from rain gauge stations 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Pérez Goya, Unai Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Multitemporal imagery is by and large geometrically and radiometrically accurate, but the residual noise arising from removal clouds and other atmospheric and electronic effects can produce outliers that must be mitigated ...

    • In situ synthesis of gold nanoparticles in layer-b y-layer polymeric coatings for the fabrication of optical fiber sensors 

      Martínez Hernández, María Elena Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Rivero Fuente, Pedro J. Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      A new method is proposed to tune the interferometric response of wavelength-based optical fiber sensors. Using the nanoparticle in situ synthesis (ISS) technique, it is possible to synthesize gold nanoparticles (AuNPs) ...

    • In situ synthesis of SERS-active Au@POM nanostructures in a microfluidic device for real-time detection of water pollutants 

      Lafuente, Marta; Pellejero, Ismael Upna Orcid; Clemente, Alberto; Urbiztondo, Miguel A.; Mallada, Reyes; Reinoso, Santiago Upna Orcid; Pina, María del Pilar; Gandía Pascual, Luis Upna Orcid (ACS, 2020)   Artículo / Artikulua  OpenAccess
      We present a simple, versatile and low-cost approach for the preparation of SERS-active regions within a microfluidic channel 50 cm in length. The approach involves the UV-light-driven formation of polyoxometalate-decorated ...

    • 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 ...

    • Induction of radiata pine somatic embryogenesis at high temperatures provokes a long-term decrease in DNA methylation/hydroxymethylation and differential expression of stress-related genes 

      Castander Olarieta, Ander; Pereira, Catia; Sales, Ester; Meijón, Mónica; Arrillaga, Isabel; Goicoa Mangado, Tomás Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Cañal, María Jesús; Moncaleán, Paloma; Montalbán, Itziar A. (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Based on the hypothesis that embryo development is a crucial stage for the formation of stable epigenetic marks that could modulate the behaviour of the resulting plants, in this study, radiata pine somatic embryogenesis ...

    • Influence of bi content on the temperature of the formation of the hard magnetic MnBi phase: simultaneous irreversible drop of resistance 

      Vergara Platero, José Upna Orcid; Favieres Ruiz, Cristina Upna Orcid; Madurga Pérez, Vicente Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      Pulsed laser-deposited (PLD) MnBi films were fabricated by alternating deposition of Mn and Bi layers. In order to obtain the ferromagnetic MnBi phase, heat treatments were performed on the samples. Simultaneously, the ...

    • Influence of defects on the irreversible phase transition in the Fe-Pd doped with Co and Mn 

      Bonifacich, Federico Guillermo; Lambri, Osvaldo Agustín; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Recarte Callado, Vicente Upna Orcid; Sánchez-Alarcos Gómez, Vicente Upna Orcid (Rede Latino-Americana de Materiais, 2018)   Artículo / Artikulua  OpenAccess
      The appearance of BCT martensite in Fe-Pd-based ferromagnetic shape memory alloys, which develops at lower temperatures than the thermoelastic martensitic transition, deteriorates the shape memory properties. In a previous ...

    • Influence of structural defects on the properties of metamagnetic shape memory alloys 

      Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Lambri, Osvaldo Agustín; López García, Javier Upna (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      The production of µ-particles of Metamagnetic Shape Memory Alloys by crushing and subsequent ball milling process has been analyzed. The high energy involved in the milling process induces large internal stresses and high ...

    • Influence of the geometry on the performance of GMI in meander configuration 

      Beato López, Juan Jesús Upna Orcid; Lete, N.; García-Arribas, A.; Gómez Polo, Cristina Upna Orcid (Elsevier, 2022)   Artículo / Artikulua
      The effect of geometry on Giant Magnetoimpedance effect (GMI) in a meander structure composed of three amorphous magnetic ribbons ((Co0.94 Fe0.06)72,5 Si12.5 B15; 20 mm length) connected electrically in series is analyzed. ...

    • Innovative catalyst integration on transparent silicone microreactors for photocatalytic applications 

      Pellejero, Ismael Upna Orcid; Clemente, Alberto; Reinoso, Santiago Upna Orcid; Cornejo Ibergallartu, Alfonso Upna Orcid; Navajas León, Alberto Upna Orcid; Vesperinas Oroz, José Javier; Urbiztondo, Miguel A.; Gandía Pascual, Luis Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      Reproducible and controllable incorporation and immobilization of catalysts and other active particles onto silicone microreactor channels is still challenging. In this work, we present an innovative fabrication protocol ...

    • 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. ...

    • Inorganic–organic hybrids based on sepiolite as efficient adsorbents of caffeine and glyphosate pollutants 

      Baldan Junior, Hugo; Silva Grazziano, Eliane da; Saltarelli, Michelle; Crispim, Denise; Nassar, Eduardo J.; Trujillano, Raquel; Rives, Vicente; Vicente, Miguel Ángel; Gil Bravo, Antonio Upna Orcid; Korili, Sophia A. Upna Orcid; Faria, Emerson H. de; Ciuffi, Katia J. (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      Sepiolite clay mineral was functionalized with (3-chloropropyl)triethoxysilane (ClPTES) or 3-[tri(ethoxy/methoxy)silyl] propylurea (TEMSPU) alkoxides and tested as adsorbent for herbicide glyphosate and also of caffeine, ...
      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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