• Evaluation of grape stems and grape stem extracts for sulfur dioxide replacement during grape wine production 

      Pires Nogueira, Danielle; Jiménez Moreno, Nerea Upna Orcid; Esparza Catalán, Irene Upna; Moler Cuiral, José Antonio Upna Orcid; Ferreira-Santos, Pedro; Sagüés Sarasa, Ana; Teixeira, José António; Ancín Azpilicueta, Carmen Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      Sulfur dioxide (SO2), the main preservative in wine, may affect the sensory properties of the wines, as well as cause allergic reactions and headaches in sensitive people. The aim of this work was to evaluate the replacement ...
    • Evaluation of the photocatalytic activity and anticorrosion performance of electrospun fibers doped with metallic oxides 

      Albistur, Ainhoa; Rivero Fuente, Pedro J. Upna Orcid; Esparza Gorráiz, Joseba; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      This paper reports the development and characterization of a multifunctional coating that combines anticorrosion and photocatalytic properties, deposited by means of the electrospinning technique. In the first step, a ...
    • Evidence for the synthesis of La-hexaaluminate from aluminum-containing saline slag wastes: correction of structural defects and phase purification at low temperature 

      Torrez Herrera, Jonathan Josué Upna; Fuentes Ordóñez, Edwin Gustavo Upna Orcid; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      The synthesis of a lanthanum hexaaluminate from the aluminum extracted from a saline slag waste is presented for the first time. Briefly, a refluxing 2 M solution of HCl is used to extract the aluminum, giving 8.9 gAl/dm3 ...
    • Evolution of magnetic response as a function of annealing temperature in Fe-based alloys 

      Gargicevich, Damián; Bonifacich, Federico Guillermo; Lambri, Osvaldo Agustín; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Recarte Callado, Vicente Upna Orcid (Rede Latino-Americana de Materiais, 2018)   Artículo / Artikulua  OpenAccess
      The magnetic response, coercive force and magnetic induction, in Fe-10at.% Si, Fe-6at.% Al-9at.% Si and Fe-4at.% Al-8at.% Ge alloys as a function of the annealing temperature was determined and correlated to the microstructural ...
    • Existence of almost greedy bases in mixed-norm sequence and matrix spaces, including besov spaces 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Bello, Glenier; Wojtaszczyk, Przemyslaw (Springer, 2023)   Artículo / Artikulua  OpenAccess
      We prove that the sequence spaces lp ⊕ lq and the spaces of infinite matrices lp(lq ), lq l(p) and ( ∞ n=1 n lp)lq , which are isomorphic to certain Besov spaces, have an almost greedy basis whenever 0 < p < 1 < q < ∞. ...
    • Experimental and theoretical studies of the interaction of ketoprofen in halloysite nanotubes 

      Sid, Dounia; Baitiche, Milad; Bourzami, Riahd; Merir, Roufaida; Djerboua, Ferhat; Gil Bravo, Antonio Upna Orcid; Boutahala, Mokhtar (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      In recent years, the application of halloysite (HAL) in the conception of drug systems has become important due to its excellent physicochemical properties. Ketoprofen (KET) is widely used around the world as an anti-inflammatory ...
    • Experimental evaluation of distortion in amplitude modulation techniques for parametric loudspeakers 

      San Martín Murugarren, Ricardo Upna Orcid; Tello Santacana, Pablo; Valencia Leoz, Ana Upna; Marzo Pérez, Asier Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Parametric loudspeakers can generate a highly directional beam of sound, having applications in targeted audio delivery. Audible sound modulated into an ultrasonic carrier will get self-demodulated along the highly directive ...
    • Experimental Stark widths and shifts of MnII spectral lines 

      Manrique Rosel, Javier; Aragón Garbizu, Carlos Upna Orcid; Aguilera Andoaga, José Antonio Upna Orcid (Oxford University Press, 2019)   Artículo / Artikulua  OpenAccess
      Stark widths and shifts of MnII lines with wavelengths in the range 2300-3500 Å have been measured by laser-induced breakdown spectroscopy. The use of fused glass samples with varying Mn concentrations has allowed minimization ...
    • Experimental stark widths and shifts of V II spectral lines 

      Manrique Rosel, Javier; Díaz Pace, D. M.; Aragón Garbizu, Carlos Upna Orcid; Aguilera Andoaga, José Antonio Upna Orcid (Oxford University Press, 2020)   Artículo / Artikulua  OpenAccess
      We have measured the Stark widths and shifts of V II spectral lines in the wavelength range 2000-4200 Å belonging to 75 multiplets. The spectra are emitted by laser-induced plasmas generated from fused glass discs prepared ...
    • Exploring a low-cost valorization route for amazonian cocoa pod husks through thermochemical and catalytic upgrading of pyrolysis vapors 

      Villasana, Yanet; Armenise, Sabino; Ábrego, Javier; Atienza Martínez, María Upna Orcid; Hablich Alvarracin, Karina Lissett Upna; Bimbela Serrano,  Fernando Upna Orcid; Cornejo Ibergallartu, Alfonso Upna Orcid; Gandía Pascual, Luis Upna Orcid (ACS Publications, 2023)   Artículo / Artikulua  OpenAccess
      Ecuador as an international leader in the production of cocoa beans produced more than 300 000 tons in 2021; hence, the management and valorization of the 2 MM tons of waste generated annually by this industry have a ...
    • Extraction of phenolic compounds from populus salicaceae bark 

      Autor, E.; Cornejo Ibergallartu, Alfonso Upna Orcid; Bimbela Serrano, Fernando Upna Orcid; Maisterra Udi, Maitane Upna; Gandía Pascual, Luis Upna Orcid; Martínez-Merino, V. (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      Lignocellulosic residues have the potential for obtaining high value-added products that could be better valorized if biorefinery strategies are adopted. The debarking of short-rotation crops yields important amounts of ...
    • Fe-C nanoparticles obtained from thermal decomposition employing sugars as reducing agents 

      Cervera Gabalda, Laura María Upna; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Garayo Urabayen, Eneko Upna Orcid; Monteserín, María; Larumbe Abuin, Silvia Upna; Martín, F.; Gómez Polo, Cristina Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      The aim of the work is to present a comparative analysis (structural and magnetic) of Fe-C nanocomposites obtained by the thermal decomposition of sugars (fructose, glucose and sucrose) employing FeCl3 as Fe3+ precursor. ...
    • Feasibility to producing second generation bioethanol in Bolivia 

      Beltrán Siñani, Magaly Inés; Gil Bravo, Antonio Upna Orcid (Universidad Nacional del Sur (Argentina), 2021)   Artículo / Artikulua  OpenAccess
      Bioethanol produced worldwide is mostly obtained from agricultural crops such as sugarcane and corn. However, it has negative environmental effects, so opportunity for producing bioethanol from agricultural waste arises. ...
    • Fiber optic sensors based on hybrid phenyl-silica xerogel films to detect n-hexane: determination of the isosteric enthalpy of adsorption 

      Echeverría Morrás, Jesús Upna Orcid; Calleja, Ignacio; Moriones Jiménez, Paula Upna Orcid; Garrido Segovia, Julián José Upna Orcid (Beilstein-Institut, 2017)   Artículo / Artikulua  OpenAccess
      We investigated the response of three fiber optic sensing elements prepared at pH 10 from phenyltriethoxysilane (PhTEOS) and tetraethylsilane (TEOS) mixtures with 30, 40, and 50% PhTEOS in the silicon precursor mixture. ...
    • Filling missing data and smoothing altered data in satellite imagery with a spatial functional procedure 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Montesino San Martín, Manuel Upna Orcid (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Outliers and missing data are commonly found in satellite imagery. These are usually caused by atmospheric or electronic failures, hampering the correct monitoring of remote-sensing data. To avoid distorted data, we propose ...
    • Fireballs recorded between May and July 2021 by the Southwestern Europe Meteor Network 

      Madiedo, J. M.; Ortiz, J. L.; Izquierdo, J.; Santos-Sanz, P.; Aceituno, J.; Guindos, E. de; Yanguas Sayas, Patricia Upna Orcid; Palacián Subiela, Jesús Francisco Upna Orcid; San Segundo, A.; Ávila, D. (MeteorNews, 2021)   Artículo / Artikulua  OpenAccess
      This work focuses on the analysis of the most remarkable bolides recorded over the Iberian Peninsula and neighboring areas in the framework of the Southwestern Europe Meteor Network (SWEMN) and the SMART project. These ...
    • 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 ...
    • FRIPON: a worldwide network to track incoming meteoroids 

      Colas, F.; Zanda, B.; Bouley, S.; Jeanne, S.; Malgoyre, A.; Birlan, M.; Yanguas Sayas, Patricia Upna Orcid; Blanpain, C.; Gattacceca, J.; Jorda, L.; Lecubin, J.; Marmo, C.; Rault, J. L.; Vaubaillon, J.; Vernazza, P.; Yohia, C.; Gardiol, D.; Nedelcu, A.; Poppe, B.; Rowe, J.; Forcier, M.; Koschny, D.; Trigo-Rodríguez, J. M.; Lamy, H.; Behrend, R.; Ferrière, L.; Barghini, D.; Buzzoni, A.; Carbognani, A.; Di Carlo, M.; Di Martino, M.; Knapic, C.; Londero, E.; Pratesi, G.; Rasetti, S.; Riva, W.; Stirpe, G.M.; Valsecchi, G.B.; Volpicelli, C.A.; Zorba, S.; Coward, D.; Drolshagen, E.; Drolshagen, G.; Hernández, O.; Jehin, E.; Jobin, M.; King, A.; Nitschelm, C.; Ott, T.; Sánchez-Lavega, Agustín; Toni, A.; Abraham, P.; Affaticati, F.; Albani, M.; Andreis, A.; Andrieu, T.; Anghel, S.; Antaluca, E.; Antier, K.; Appéré, T.; Armand, A.; Ascione, G.; Audureau, Y.; Auxepaules, G.; Avoscan, T.; Baba Aissa, D.; Bacci, P.; Bãdescu, O.; Baldini, R.; Baldo, R.; Balestrero, A.; Baratoux, D.; Barbotin, E.; Bardy, M.; Basso, S.; Bautista, O.; Bayle, L. D.; Beck, P.; Bellitto, R.; Belluso, R.; Benna, C.; Benammi, M.; Beneteau, E.; Benkhaldoun, Z.; Bergamini, P.; Bernardi, F.; Bertaina, M. E.; Bessin, P.; Betti, L.; Bettonvil, F.; Bihel, D.; Birnbaum, C.; Blagoi, O.; Blouri, E.; Boacã, I.; Boatã, R.; Bobiet, B.; Bonino, R.; Boros, K.; Bouchet, E.; Borgeot, V.; Bouchez, E.; Boust, D.; Boudon, V.; Bouman, T.; Bourget, P.; Brandenburg, S.; Bramond, Ph.; Braun, E.; Bussi, A.; Cacault, P.; Caillier, B.; Calegaro, A.; Camargo, J.; Caminade, S.; Campana, A. P. C.; Campbell Burns, P.; Canal Domingo, R.; Carell, O.; Carreau, S.; Cascone, E.; Cattaneo, C.; Cauhape, P.; Cavier, P.; Celestin, S.; Cellino, A.; Champenois, M.; Chennaoui Aoudjehane, Hasnaa; Chevrier, S.; Cholvy, P.; Chomier, L.; Christou, A.; Cricchio, D.; Coadou, P.; Cocaign, J. Y.; Cochard, F.; Cointin, S.; Colombi, E.; Colque Saavedra, J. P.; Corp, L.; Costa, M.; Costard, F.; Cottier, M.; Cournoyer, P.; Cousta, E.; Cremonese, G.; Cristea, O.; Cuzon, J. C.; D’Agostino, G.; Daiffallah, K.; Dãnescu, C.; Dardon, A.; Dasse, T.; Davadan, C.; Debs, V.; Defaix, J. P.; Deleflie, F.; D’Elia, M.; Luca, P. de; Maria, P. de; Deverchère, P.; Devillepoix, H.; Dias, A.; Di Dato, Andrea; Di Luca, R.; Dominici, F. M.; Drouard, A.; Dumont, J. L.; Dupouy, P.; Duvignac, L.; Egal, A.; Erasmus, N.; Esseiva, N.; Ebel, A.; Eisengarten, B.; Federici, F.; Feral, S.; Ferrant, G.; Ferreo, E.; Finitzer, P.; Foucault, A.; Francois, P.; Frîncu, M.; Froger, J. L.; Gaborit, F.; Gagliarducci, V.; Galard, J.; Gardavot, A.; Garmier, M.; Garnung, M.; Gautier, B.; Gendre, B.; Gerard, D.; Gerardi, A.; Godet, J. P.; Grandchamps, A.; Grouiez, B.; Groult, S.; Guidetti, D.; Giuli, G.; Hello, Y.; Henry, X.; Herbreteau, G.; Herpin, M.; Hewins, P.; Hillairet, J. J.; Horak, J.; Hueso, R.; Huet, E.; Huet, S.; Hyaumé, F.; Interrante, G.; Isselin, Y.; Jeangeorges, Y.; Janeux, P.; Jeanneret, P.; Jobse, K.; Jouin, S.; Jouvard, J. M.; Joy, K.; Julien, F.; Kacerek, R.; Kaire, M.; Kempf, M.; Koschny, D.; Krier, C.; Kwon, M. K.; Lacassagne, L.; Lachat, D.; Lagain, A.; Laisné, E.; Lanchares, Víctor; Laskar, J.; Lazzarin, M.; Leblanc, M.; Lebreton, J. P.; Lecomte, J.; Le Dû, P.; Lelong, F.; Lera, S.; Leoni, J. F.; Le Pichon, A.; Le Poupon, P.; Leroy, A.; Leto, G.; Levansuu, A.; Lewin, E.; Lienard, A.; Licchelli, D.; Locatelli, H.; Loehle, S.; Loizeau, D.; Luciani, L.; Maignan, M.; Manca, F.; Mancuso, S.; Mandon, E.; Mangold, N.; Mannucci, F.; Maquet, L.; Marant, D.; Marchal, Y.; Marín, J. L.; Martín Brisset, J. C.; Martín, D.; Mathieu, D.; Maury, A.; Mespoulet, N.; Meyer, F.; Meyer, J. Y.; Meza, E.; Moggi Cecchi, V.; Moiroud, J. J.; Millán, M.; Montesarchio, M.; Misiano, A.; Molinari, E.; Molau, S.; Monari, J.; Monflier, B.; Monkos, A.; Montemaggi, M.; Monti, G.; Moreau, R.; Morin, J.; Mourgues, R.; Mousis, O.; Nablanc, C.; Nastasi, A.; Niacsu, L.; Notez, P.; Ory, M.; Pace, E.; Paganelli, M. A.; Pagola, A.; Pajuelo, M.; Palacián Subiela, Jesús Francisco Upna Orcid; Pallier, G.; Paraschiv, P.; Pardini, R.; Pavone, M.; Pavy, G.; Payen, G.; Pegoraro, A.; Peña-Asensio, Eloy; Pérez, L.; Pérez-Hoyos, Santiago; Perlerin, V.; Peyrot, A.; Peth, F.; Pic, V.; Pietronave, S.; Pilger, C.; Piquel, M.; Pisanu, T.; Poppe, M.; Portois, L.; Prezeau, J. F.; Pugno, N.; Quantin, C.; Quitté, G.; Rambaux, N.; Ravier, E.; Repetti, U.; Ribas, S.; Richard, C.; Richard, D.; Rigoni, M.; Rivet, J. P.; Rizzi, N.; Rochain, S.; Rojas, J. F.; Romeo, M.; Rotaru, M.; Rotger, M.; Rougier, P.; Rousselot, P.; Rousset, J.; Rousseu, D.; Rubiera, O.; Rudawska, R.; Rudelle, J.; Ruguet, J. P.; Russo, P.; Sales, S.; Sauzereau, O.; Salvati, F.; Schieffer, M.; Schreiner, D.; Scribano, Y.; Selvestrel, D.; Serra, R.; Shengold, L.; Shuttleworth, A.; Smareglia, R.; Sohy, S.; Soldi, M.; Stanga, R.; Steinhausser, A.; Strafella, F.; Sylla, Serigne; Smedley, Andrew; Tagger, M.; Tanga, P.; Taricco, C.; Teng, J. P.; Tercu, J. O.; Thizy, O.; Thomas, J. P.; Tombelli, M.; Trangosi, R.; Tregon, B.; Trivero, P.; Tukkers, A.; Turcu, V.; Umbriaco, G.; Unda-Sanzana, Eduardo; Vairetti, R.; Valenzuela, M.; Valente, G.; Varennes, G.; Vauclair, S.; Vergne, J.; Verlinden, M.; Vidal Alaiz, M.; Vieira-Martins, Roberto; Viel, A.; Vîntdevarã, D. C.; Vinogradoff, V.; Volpini, P.; Wendling, M.; Wilhelm, P.; Wohlgemuth, K.; Zagarella, R.; Zollo, A. (EDP Sciences, 2020)   Artículo / Artikulua  OpenAccess
      Context. Until recently, camera networks designed for monitoring fireballs worldwide were not fully automated, implying that in case of a meteorite fall, the recovery campaign was rarely immediate. This was an important ...
    • 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 ...
    • Functionalization of 3D printed ABS filters with MOF for toxic gas removal 

      Pellejero, Ismael Upna Orcid; Almazán, Fernando; Lafuente, María; Urbiztondo, Miguel A.; Dobrek, Martin; Bechelany, Mikhael; Julbe, Anne; Gandía Pascual, Luis Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      Acrylonitrile butadiene styrene (ABS) is one of the most extensively used polymer in 3D printing manufacturing due to its competitive thermal and mechanical properties. Recently, a special attention has been devoted to ...

      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).
      Logo MinisterioLogo Fecyt