• Incandescent temporal metamaterials 

      Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo Upna Orcid (Nature Research, 2023)   Artículo / Artikulua  OpenAccess
      Regarded as a promising alternative to spatially shaping matter, time-varying media can be seized to control and manipulate wave phenomena, including thermal radiation. Here, based upon the framework of macroscopic quantum ...
    • Inclusion of a supercapacitor energy storage system in DFIG and full-converter PMSG wind turbines for inertia emulation 

      Berrueta Irigoyen, Alberto Upna Orcid; Sacristán Sillero, Javier; López Taberna, Jesús Upna Orcid; Rodríguez Izal, José Luis; Ursúa Rubio, Alfredo Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      The energy transition towards renewables must be accelerated to achieve climate targets. To do so, renewable power plants, such as wind power plants (WPPs) must replace conventional power plants (CPPs). Transmission System ...
    • Influence of control in cycling degradation when batteries perform PV ramp-rate control 

      González Moreno, Alejandro; Marcos Álvarez, Javier Upna Orcid; Parra Laita, Íñigo de la Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      This work studies the importance of the correct selection of control parameters in order to avoid unnecessary cycling in batteries when they perform PV smoothing. The classic ramp-rate control method (CRRC) is studied ...
    • Innovative approaches for organizing an inclusive optics and photonics conference in virtual format 

      Heras, Alba de las; Gómez-Varela, Ana Isabel; Tomás, María-Baralida; Pérez Herrera, Rosa Ana Upna Orcid; Sánchez, Luis Alberto; Gallazzi, Francesca; Santamaría, Beatriz; García Lechuga, Mario; Vinas María; Delgado Pinar, Martina; González Fernández, Verónica (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The COVID pandemic is forcing the renewal of scientific conferences, offering opportunities to introduce technological and inclusive developments. Our analysis focuses on the implementation of inclusive practices for female ...
    • 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 ...
    • Integrating multiple stubs in stepped-impedance filter aiming for high selectivity 

      Sami, Abdul Upna; Gómez Laso, Miguel Ángel Upna Orcid; Lopetegui Beregaña, José María; Arnedo Gil, Israel; Calero Fernández, Ibai; Teberio Berdún, Fernando Upna Orcid; Martín Iglesias, Petronilo; Benito Pertusa, David Upna Orcid; Arregui Padilla, Iván Upna Orcid (IETWiley, 2022)   Artículo / Artikulua  OpenAccess
      A design technique to include multiple and fully-controlled transmission zeros (TZs) in the frequency response of rectangular waveguide commensurate-line stepped-impedance filters is presented in this letter. These bandpass ...
    • Integration of autonomous wireless sensor networks in academic school gardens 

      López Iturri, Peio Upna Orcid; Celaya Echarri, Mikel Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      In this work, the combination of capabilities provided by Wireless Sensor Networks (WSN) with parameter observation in a school garden is employed in order to provide an environment for school garden integration as a ...
    • Intelligent control of wind-assisted PHEVs smart charging station 

      Hassan, Syed Zulqadar; Kamal, Tariq; Riaz, Muhammad Hussnain; Shah, Syed Aamir Hussain; Ali, Hina Gohar; Riaz, Muhammad Tanveer; Sarmad, Muhammad; Zahoor, Amir; Khan, Muhammad Abbas; Pascual Miqueleiz, Julio María Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      Two technology opportunities, integration of renewable energy sources and the electrification of vehicles are being encouraged to reduce dependency on fossil fuels and pollution problems. Nevertheless, the huge increase ...
    • Interaction between closely packed array antenna elements using meta-surface for applications such as MIMO systems and synthetic aperture radars 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Shukla, Panchamkumar; See, Chan H.; Abd-Alhameed, Raed; Khalily, Mohsen; Falcone Lanas, Francisco Javier Upna Orcid; Limiti, Ernesto (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      The paper presents a technique to enhance the isolation between adjacent radiating elements that is common in densely packed antenna arrays. Such antennas provide frequency beam-scanning capability needed in multiple-input ...
    • Interdigital concept in photonic sensors based on an array of lossy mode resonances 

      Domínguez Rodríguez, Ismel Upna Orcid; Del Villar, Ignacio Upna Orcid; Fuentes Lorenzo, Omar Upna; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Nature Research, 2021)   Artículo / Artikulua  OpenAccess
      Multi-parameter detection is key in the domain of sensors. Here it is demonstrated that an indium tin oxide (ITO) nanocoating can be used to generate multiple lossy mode resonances (LMRs) in the optical spectrum. To achieve ...
    • IoT-based COVID-19 diagnosing and monitoring systems: a survey 

      Anjum, Nasreen; Alibakhshikenari, Mohammad; Rashid, Junaid; Jabeen, Fouzia; Asif, Amna; Mohamed, Ehab Mahmoud; Falcone Lanas, Francisco Javier Upna Orcid (IEEE, 2022)   Artículo / Artikulua  OpenAccess
      To date, the novel Coronavirus (SARS-CoV-2) has infected millions and has caused the deaths of thousands of people around the world. At the moment, five antibodies, two from China, two from the U.S., and one from the UK, ...
    • Isolation improvement in UWB-MIMO antenna system using slotted stub 

      Altaf, Ahsan; Iqbal, Amjad; Smida, Amor; Smida, Jamel; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Multiple-input multiple-output (MIMO) scheme refers to the technology where more than one antenna is used for transmitting and receiving the information packets. It enhances the channel capacity without more power. The ...
    • Labyrinth metasurface absorber for ultra-high-sensitivity terahertz thin film sensing 

      Jáuregui López, Irati Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Urrutia Azcona, Aitor Upna Orcid; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      In this work, a labyrinth metasurface sensor operating at the low‐frequency edge of the THz band is presented. Its intricate shape leads to a high electric field confinement on the surface of the structure, resulting in ...
    • Labyrinth metasurface for biosensing applications: numerical study on the new paradigm of metageometries 

      Jáuregui López, Irati Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Kuznetsov, Sergei A.; Quemada Mayoral, Carlos Upna Orcid; Beruete Díaz, Miguel Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      The use of metasurfaces operating in the terahertz regime as biosensor devices has attracted increased interest in recent years due to their enhanced sensitivity and more accurate detection capability. Typical designs are ...
    • Layer-by-layer nano-assembly: a powerful tool for optical fiber sensing applications 

      Rivero Fuente, Pedro J. Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      The ability to tune the composition of nanostructured thin films is a hot topic for the design of functional coatings with advanced properties for sensing applications. The control of the structure at the nanoscale level ...
    • Libro II, De las donaciones y sucesiones. Título XX. De la partición de herencia (leyes 331 a 345) 

      Luquin Bergareche, Raquel Upna Orcid (Aranzadi, 2020)   Capítulo de libro / Liburuen kapitulua
    • Light propagation and magnon-photon coupling in optically dispersive magnetic media 

      Bittencourt, V.A.S.V.; Liberal Olleta, Íñigo Upna Orcid; Viola Kusminskiy, Silvia (American Physical Society, 2022)   Artículo / Artikulua  OpenAccess
      Achieving strong coupling between light and matter excitations in hybrid systems is a benchmark for the implementation of quantum technologies. We recently proposed (Bittencourt, Liberal, and Viola-Kusminskiy, arXiv:2110.02984) ...
    • Liquid level sensor based on dynamic Fabry–Perot interferometers in processed capillary fiber 

      Roldán Varona, Pablo; Pérez Herrera, Rosa Ana Upna Orcid; Rodríguez Cobo, Luis; Reyes González, Luis; López-Amo Sáinz, Manuel Upna Orcid (Springer Nature, 2021)   Artículo / Artikulua  OpenAccess
      In this work, a novel optical fiber sensor capable of measuring both the liquid level and its refractive index is designed, manufactured and demonstrated through simulations and experimentally. For this, a silica capillary ...
    • LMR-based optical sensor for ethylene detection at visible and mid-infrared regions 

      Gallego Martínez, Elieser Ernesto; Hualde Otamendi, Mikel; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      Ethylene monitoring has long been a method of controlling the ripening of climacteric fruits, but it turns out that this gas is an important biomarker in biomedical applications. This work presents an optical gas sensor ...

      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