• Heterogeneous Fenton- and photo-Fenton-like catalytic degradation of emerging pollutants using Fe2O3/TiO2/pillared clays synthesized from aluminum industrial wastes 

      Cardona, Yaneth Upna Orcid; Wegrzyn, Agnieszka; Miskowiec, Pawel; Korili, Sophia A. Upna Orcid; Gil Bravo, Antonio Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The presence of emerging pollutants (EPs) in water is a major environmental concern. This study evaluates for the first time the removal of three EPs, namely triclosan (TCS), 2,6-dichlorophenol (2,6-DCP), and bisphenol A ...
    • Instantaneous amplitude and phase signal modeling for harmonic removal in wind turbines 

      Zivanovic, Miroslav Upna Orcid; Plaza Puértolas, Aitor Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Carlosena García, Alfonso Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      We present a novel approach to harmonic disturbance removal in single-channel wind turbine acceleration data by means of time-variant signal modeling. Harmonics are conceived as a set of quasi-stationary sinusoids whose ...
    • Characterization of multilayer coupling based on square complementary split ring resonator for multiport device implementation 

      Jarauta Ayensa, Eduardo Upna; Iriarte Galarregui, Juan Carlos Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The advent of context-aware environments and related applications demands a high degree of connectivity, with new spectral bands and related radio resource management functionalities in the current 5G bands and foreseen ...
    • Automated forearm prosthesis controlling using fiber bragg grating sensor 

      Valera Rialto Júnior, Péricles; Dureck, Eduardo Henrique; Kalinowski, Alessandra; Ruiz Zamarreño, Carlos Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Cardozo da Silva, Jean Carlos; Lazzaretti, André Eugenio; Dreyer, Uilian José (Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo, 2023)   Artículo / Artikulua  OpenAccess
      This paper describes the automation of a forearm prosthesis using the signal collected by a Fiber Bragg Grating (FBG) sensor. The FBG sensor is applied to one subject's forearm to measure the deformation as a result of the ...
    • Disposición adicional décima. Autorización extraordinaria de atraque en los puertos españoles 

      Zurutuza Arigita, Iñaki Upna Orcid (Tirant lo Blanch, 2023)   Capítulo de libro / Liburuen kapitulua
    • Tutorial on the conservation of momentum in photonic time-varying media [Invited] 

      Ortega Gómez, Ángel; Lobet, Michaël; Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo Upna Orcid (Optica, 2023)   Artículo / Artikulua  OpenAccess
      Time-varying media break temporal symmetries while preserving spatial symmetries intact. Thus, it represents an excellent conceptual framework to investigate the fundamental implications of Noether’s theorem for the ...
    • Performance analysis of a distributed optical fiber vibration sensor based on a sagnac interferometer 

      Ozcariz Celaya, Aritz Upna Orcid; Heim Weber, Guilherme; Fernandes Gomes, Danilo; Costa, Igor Brutkowski Vieira da; Galvão, José Rodolfo; Martins, Victor Matheus; Pipa, Daniel R.; Silva, Marco J. da; Cardozo da Silva, Jean Carlos; Ruiz Zamarreño, Carlos Upna Orcid; Martelli, Cicero (BMO/SBMag, 2023)   Artículo / Artikulua  OpenAccess
      In this work, measuring capabilities of a Sagnac Interferometer-based Distributed Optical Fiber Sensor (DOFS) system are demonstrated by comparing its results to a conventional amplitude-based Distributed Acoustic Sensing ...
    • Gas sensor based on lossy mode resonances by means of thin graphene oxide films fabricated onto planar coverslips 

      Vitoria Pascual, Ignacio Upna Orcid; Gallego Martínez, Elieser Ernesto; Melendi Espina, Sonia; Hernáez Sáenz de Zaitigui, Miguel Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The use of planar waveguides has recently shown great success in the field of optical sensors based on the Lossy Mode Resonance (LMR) phenomenon. The properties of Graphene Oxide (GO) have been widely exploited in various ...
    • Impact of graphene monolayer on the performance of non-conventional silicon heterojunction solar cells with moox hole-selective contact 

      Ros, Eloi; Fernández, Susana; Ortega, Pablo; Taboada, Elena; Arnedo Gil, Israel; Gandía, José Javier; Voz, Cristóbal (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      In this work, a new design of transparent conductive electrode based on a graphene monolayer is evaluated. This hybrid electrode is incorporated into non-standard, high-efficiency crystalline silicon solar cells, where the ...
    • Long-range traffic monitoring based on pulse-compression distributed acoustic sensing and advanced vehicle tracking and classification algorithm 

      Corera Orzanco, Íñigo Upna Orcid; Piñeiro Ben, Enrique; Navallas Irujo, Javier; Sagüés García, Mikel Upna Orcid; Loayssa Lara, Alayn (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      We introduce a novel long-range traffic monitoring system for vehicle detection, tracking, and classification based on fiber-optic distributed acoustic sensing (DAS). High resolution and long range are provided by the use ...
    • Measurement of paracetamol concentration using an erbium-doped fiber ring cavity 

      Soares, Liliana; Pérez Herrera, Rosa Ana Upna Orcid; Novais, Susana; Ferreira, António; Silva, Susana; Frazão, Orlando (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      Process Analytical Technology (PAT) has been increasingly used in the pharmaceutical industry to monitor essential parameters in real-time during pharmaceutical processes. The concentration of Active Pharmaceutical Ingredients ...
    • Synthesis of rectangular waveguide filters with smooth profile oriented to direct metal additive manufacturing 

      Percaz Ciriza, Jon Mikel Upna Orcid; Hussain, Jabir; Arregui Padilla, Iván Upna Orcid; Teberio Berdún, Fernando Upna Orcid; Benito Pertusa, David Upna Orcid; Martín Iglesias, Petronilo; Arnedo Gil, Israel; Gómez Laso, Miguel Ángel Upna Orcid; Lopetegui Beregaña, José María (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      In this paper, a novel design method for rectangular waveguide filters intended for fabrication using direct metal additive manufacturing is proposed. The synthesized filters will feature a smooth profile that allows us ...
    • Lossy mode resonance-based optical immunosensor towards detecting gliadin in aqueous solutions 

      Benítez Pérez, Melanys; Zubiate Orzanco, Pablo Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The development of accurate, intuitive, and easy-to-handle devices to detect different types of allergens is on the rise, as these are useful tools to guarantee consumer safety, which should be a priority for any food ...
    • Ultra-low frequency multidirectional harvester for wind turbines 

      Castellano Aldave, Jesús Carlos; Carlosena García, Alfonso Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Plaza Puértolas, Aitor Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      In this paper we propose, and demonstrate through a prototype, a completely novel device able to harvest mechanical energy from the multidirectional vibrations in a wind turbine, and convert it into electrical, to power ...
    • Spectrally stable thermal emitters enabled by material-based high-impedance surfaces 

      Navajas Hernández, David Upna; Pérez Escudero, José Manuel Upna Orcid; Liberal Olleta, Íñigo Upna Orcid (Royal Society of Chemistry, 2023)   Artículo / Artikulua  OpenAccess
      Radiative thermal engineering with subwavelength metallic bodies is a key element for heat and energy management applications, communication and sensing. Here, we numerically and experimentally demonstrate metallic thermal ...
    • High saturation photocurrent THz waveguide-type MUTC-photodiodes reaching mW output power within the WR3.4 band 

      Grzeslo, Marcel; Dülme, Sebastián; Clochiatti, Simone; Neerfeld, Tom; Haddad, Thomas; Lu, Peng; Tebart, Jonas; Makhlouf, Sumer; Biurrun Quel, Carlos Upna Orcid; Fernández Estévez, José Luis; Lackmann, Jörg; Weimann, Nils; Stöhr, Andreas (Optica, 2023)   Artículo / Artikulua  OpenAccess
      In this paper, we report on waveguide-type modified uni-traveling-carrier photodiodes (MUTC-PDs) providing a record high output power level for non-resonant photodiodes in the WR3.4 band. Indium phosphide (InP) based ...
    • Low-cost online monitoring system for the etching process in fiber optic sensors by computer vision 

      Rodríguez Rodríguez, Wenceslao Eduardo; Puente-Sujo, Jesús Abraham; Rodríguez Rodríguez, Adolfo Josué; Matías Maestro, Ignacio Upna Orcid; Vargas Requena, Dávid Tomás; García-Garza, Luis Antonio (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The present research exposes a novel methodology to manufacture fiber optic sensors following the etching process by Hydrofluoric Acid deposition through a real-time monitoring diameter measurement by computer vision. ...
    • Fast capacity and internal resistance estimation method for second-life batteries from electric vehicles 

      Braco Sola, Elisa Upna; San Martín Biurrun, Idoia Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The success of second-life (SL) Li-ion batteries from electric vehicles is still conditioned by their technical and economic viability. The knowledge of the internal parameters of retired batteries at the repurposing stage ...
    • Multiparametric renal magnetic resonance imaging: a reproducibility study in renal allografts with stable function 

      Echeverría Chasco, Rebeca; Martín Moreno, Paloma L.; García Fernández, Nuria; Vidorreta, Marta; Aramendía Vidaurreta, Verónica; Cano, David; Villanueva Larre, Arantxa Upna Orcid; Bastarrika, Gorka; Fernández Seara, María A. (Wiley, 2023)   Artículo / Artikulua  OpenAccess
      Monitoring renal allograft function after transplantation is key for the early detection of allograft impairment, which in turn can contribute to preventing the loss of the allograft. Multiparametric renal MRI (mpMRI) is ...
    • Wavelength-switchable L-band fiber laser assisted by random reflectors 

      Pérez Herrera, Rosa Ana Upna Orcid; Roldán Varona, Pablo; Sánchez-González, Arturo; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (EDP Open, 2023)   Artículo / Artikulua  OpenAccess
      A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented. This random reflector was inscribed by femtosecond (fs) laser ...

      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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