Now showing items 1-20 of 577

    • Potencialidades del frijol caupí para la resiliencia al cambio climático en sistemas agrícolas locales 

      Santana-Baños, Yoerlandy; González García, Esther Upna Orcid; Ariz, Idoia Upna Orcid; Carrodeguas Díaz, Sergio (2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Las evidencias científicas sugieren tres usos fundamentales del frijol caupí, con agro-ecológicas y beneficios productivos, sociales y ambientales en los sistemas agrícolas locales; sin embargo, su rendimiento a nivel ...
    • Mechanical sensitivity analysis of strain gauge configurations in the main shaft of wind turbines 

      Bacaicoa Díaz, Julen Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Aginaga García, Jokin Upna Orcid; Plaza Puértolas, Aitor Upna Orcid (IOP Publishing, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Wind turbines are reaching their remaining useful life, thus it is important to guarantee the well status of its components. A common way to check the status is to measure the loads on the Low Speed Shaft with strain gauges, ...
    • Las eléctricas: la clave de bóveda de la Transición Energética en España (1969-2020) 

      Cano-Rodríguez, Sara (2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A pesar de la esperanza depositada en una transición global dirigida desde las instituciones, las compañías eléctricas han marcado los ritmos de cambio en la forma de generación de electricidad desde los inicios del sector. ...
    • Along-the-path exponential integration for Floquet stability analysis of wind turbines 

      Ros Ganuza, Javier Upna Orcid; Olcoz Alonso, Álvaro; Plaza Puértolas, Aitor Upna Orcid (IOP Publishing, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Traditionally, stability assessment of wind turbines has been performed by eigenanalysis of the azimuthally-averaged linearized system after applying the Multi-Blade Coordinate (MBC) transformation. However, due to ...
    • Monitoring of electric buses within an urban smart city environment 

      Astrain Escola, José Javier Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; López Martín, Antonio Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Villadangos Alonso, Jesús Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A practical experience on monitoring the data generated by electric buses is presented, focusing on energy consumption, charge and state of the batteries. The work is carried out in the framework of a global smart city ...
    • Design of a slotted Substrate Integrated waveguide antenna using a metasurface 

      Chocarro Álvarez, Javier; Pérez Escudero, José Manuel Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      In this paper, the use of a metasurface to improve the radiation properties of a Substrate Integrated Waveguide based slotted antenna is proposed. The design process of a metasurface covered 8 element slot antenna array ...
    • Explainable classification methods for fish species detection using hydroacoustic data 

      Costa, Lucas Tubino Bonifacio; Lucca, Giancarlo; Pereira Dimuro, Graçaliz Upna Orcid; Borges, Eduardo N.; Emmendorfer, Leonardo R.; Weigert, Stefan Cruz (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      This work aims to evaluate explainable classification methods for the detection of fish species from hydroacoustic data acquired by echo sounders at a region near the coastline of south and southeastern Brazil. Decision ...
    • Compact bull's-eye antenna in ridge gap waveguide with circular polarization at 60 GHz 

      Pérez Quintana, Dayan Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      In this work, a Bull's-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology, working in the millimeter-wave band (60 GHz) is numerically and experimentally demonstrated. The structure ...
    • General admissibly ordered interval-valued overlap functions 

      Asmus, Tiago Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid; Sanz Delgado, José Antonio Upna Orcid; Wieczynski, Jonata; Lucca, Giancarlo; Bustince Sola, Humberto Upna Orcid (CEUR Workshop Proceedings (CEUR-WS.org), 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Overlap functions are a class of aggregation functions that measure the verlapping degree between two values. They have been successfully applied in several problems in which associativity is not required, such as ...
    • Improving Michigan-style fuzzy-rule base classification generation using a Choquet-like Copula-based aggregation function 

      Hinojosa-Cardenas, Edward; Sarmiento-Calisaya, Edgar; Camargo, Heloisa A.; Sanz Delgado, José Antonio Upna Orcid (CEUR Workshop Proceedings (CEUR-WS.org), 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a modification of a Michigan-style fuzzy rule based classifier by applying the Choquet-like Copula-based aggregation function, which is based on the minimum t-norm and satisfies all the conditions ...
    • Fuzzy sets complement-based gated recurrent unit 

      Ferrero Jaurrieta, Mikel; Pereira Dimuro, Graçaliz Upna Orcid; Takáč, Zdenko; Santiago, Regivan; Fernández Fernández, Francisco Javier Upna Orcid; Bustince Sola, Humberto Upna Orcid (CEUR Workshop Proceedings (CEUR-WS.org), 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Gated Recurrent Units (GRU) are neural network gated architectures that simplify other ones (suchas, LSTM) by joining gates mainly. For this, instead of using two gates, if𝑥is the first gate, standardoperation1−𝑥is used ...
    • Gated local adaptive binarization using supervised learning 

      Fumanal Idocin, Javier Upna Orcid; Uriarte Barragán, Juan; Osa Hernández, Borja de la Upna; Bardozzo, Francesco; Fernández Fernández, Francisco Javier Upna Orcid; Bustince Sola, Humberto Upna Orcid (CEUR Workshop Proceedings (CEUR-WS.org), 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Image thresholding is one of the most popular problems in image processing. However, changes inlightning and contrast in an image can cause trouble for the existing algorithms that use a global threshold for all the image. ...
    • Multi-channel feedarray reflector antenna based radar concept for HRWS SAR imaging 

      Castillo, Javier del; Orgaz, Lara; García, Quiterio; Memeletzoglou, Nafsika; Toso, Giovanni; Imbembo, Ernesto; Biurrun Quel, Carlos Upna Orcid; Río Bocio, Carlos del Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Large deployable reflector based multi-channel antenna systems are a key component of next generation SAR missions as they allow implementing multi-beam imaging capabilities and provide an efficient way to overcome the ...
    • Learning channel-wise ordered aggregations in deep neural networks 

      Domínguez Catena, Iris Upna Orcid; Paternain Dallo, Daniel Upna Orcid; Galar Idoate, Mikel Upna Orcid (Springer, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      One of the most common techniques for approaching image classification problems are Deep Neural Networks. These systems are capable of classifying images with different levels of detail at different levels of detail, with ...
    • A scalable and flexible Open Source Big Data architecture for small and medium-sized enterprises 

      Iñiguez Jiménez, Luis; Galar Idoate, Mikel Upna Orcid (Springer, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      The advancements of Big Data, Internet of Things and Artificial Intelligence are causing the industrial revolution known as Industry 4.0. For automated factories, adopting the necessary technologies for its implementation ...
    • Hybrid xerogels doped with Tb(III) and Eu (III) and a water soluble Pybox ligand 

      Cruz Quesada, Guillermo Upna Orcid; Espinal-Viguri, Maialen Upna Orcid; Garrido Segovia, Julián José Upna Orcid (2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Hybrid organic-inorganic siliceous materials (ORMOSiLs) are a key focus within the nanoscience area as they combine advantages of inorganic materials without losing characteristics intrinsic of organic molecules. In the ...
    • New hybrid organochlorinated xerogels 

      Cruz Quesada, Guillermo Upna Orcid; Espinal-Viguri, Maialen Upna Orcid; López Ramón, María Victoria; Garrido Segovia, Julián José Upna Orcid (2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Hybrid silica xerogels (HSXG) combine the properties of organic and inorganic components in the same material, which makes them promising and versatile candidates for multiple applications. These materials can be easily ...
    • New coplanar waveguide based on the gap waveguide technology 

      Biurrun Quel, Carlos Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; Río Bocio, Carlos del Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new planar waveguide, coined Inverted coplanar gap waveguide is presented. The concept of gap waveguides and parallel plate suppression between perfect magnetic and a perfect electric conductors is applied to coplanar ...
    • An IoT framework for SDN based city mobility 

      Al-Rahamneh, Anas; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Klaina, Hicham Upna; Picallo Guembe, Imanol Upna Orcid; López Iturri, Peio Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (Springer, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      The Internet of Things (IoT) is becoming more widespread, with global application in a wide range of commercial sectors, utilizing a variety of technologies for customized use in specific environments. The combinationof ...
    • Impedance modelling for high frequency unitraveling-carrier photodiodes 

      Grzeslo, Marcel; Biurrun Quel, Carlos Upna Orcid; Stohr, Andreas (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena
      High-speed photodiodes stand out as potential candidates to enable next-generation communication systems working as mmWave/THz sources due to their intrinsic broadband behaviour. Impedance matching is an essential task in ...