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Mostrando ítems 566-585 de 631

    • Supervised penalty-based aggregation applied to motor-imagery based brain-computer-interface 

      Fumanal Idocin, Javier Upna Orcid; Vidaurre, Carmen Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Gómez Fernández, Marisol Upna Orcid; Andreu-Perez, J.; Prasad, M.; Bustince Sola, Humberto Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      In this paper we propose a new version of penalty-based aggregation functions, the Multi Cost Aggregation choosing functions (MCAs), in which the function to minimize is constructed using a convex combination of two relaxed ...

    • Suppressed-scattering spectral windows for radiative cooling applications 

      Pérez Escudero, José Manuel Upna Orcid; Torres García, Alicia E. Upna Orcid; Lezaun Capdevila, Carlos; Caggiano, Antonio; Peralta, Ignacio; Dolado, Jorge S.; Beruete Díaz, Miguel Upna Orcid; Liberal Olleta, Íñigo Upna Orcid (Optica, 2023)   Artículo / Artikulua  OpenAccess
      The scattering of light by resonant nanoparticles is a key process for enhancing the solar reflectance in daylight radiative cooling. Here, we investigate the impact of material dispersion on the scattering performance of ...

    • Surface exciton polariton resonances (SEPR)-based sensors 

      Vitoria Pascual, Ignacio Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Ozcariz Celaya, Aritz Upna Orcid; Imas González, José Javier Upna Orcid; Del Villar, Ignacio Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Elsevier, 2023)   Artículo / Artikulua
      A new type of resonance in the development of sensors using long-range surface exciton polariton (LRSEP) phenomena has been coined: surface exciton plasmon resonance (SEPR). The resonance was obtained in the reflected ...

    • A survey on detection techniques for cryptographic ransomware 

      Berrueta Irigoyen, Eduardo Upna Orcid; Morató Osés, Daniel Upna Orcid; Magaña Lizarrondo, Eduardo Upna Orcid; Izal Azcárate, Mikel Upna Orcid (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Crypto-ransomware is a type of malware that encrypts user files, deletes the original data, and asks for a ransom to recover the hijacked documents. It is a cyber threat that targets both companies and residential users, ...

    • The sustainability dimensions in intelligent urban transportation: a paradigm for smart cities 

      Reyes-Rubiano, Lorena Silvana Upna Orcid; Serrano Hernández, Adrián Upna Orcid; Montoya Torres, Jairo R.; Faulín Fajardo, Javier Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      The transportation sector has traditionally been considered essential for commercial activities, although nowadays, it presents clear negative impacts on the environment and can reduce social welfare. Thus, advanced ...

    • 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 ...

    • TBDClust: time-based density clustering to enable free browsing of sites in pay-per-use mobile Internet providers 

      Torres García, Luis Miguel Upna; Magaña Lizarrondo, Eduardo Upna Orcid; Morató Osés, Daniel Upna Orcid; García-Jiménez, Santiago Upna Orcid; Izal Azcárate, Mikel Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      The World Wide Web has evolved rapidly, incorporating new content types and becoming more dynamic. The contents from a website can be distributed between several servers, and as a consequence, web traffic has become ...

    • Technical and environmental characterization of hydraulic and alkaline binders 

      Espuelas Zuazu, Sandra Upna Orcid; Echeverría, Angel María Upna Orcid; Marcelino Sádaba, Sara Upna Orcid; Prieto Cobo, Eduardo Upna Orcid; Seco Meneses, Andrés Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      Portland cement is a widely used binder in construction and building applications because of its good properties. Despite its convenience as construction material, the social demands and policies trends are requesting a ...

    • Telecommunications on Earth and their possible relation with the anthropic principle 

      Del Villar, Ignacio Upna Orcid (Nicolaus Copernicus University, 2019)   Artículo / Artikulua  OpenAccess
      The society of the information is based on the ability of humans to communicate in real time. This is possible thanks to the emission of electromagnetic waves. In this work it is discussed, by analyzing the round trip time ...

    • Temperature sensor using a multiwavelength erbium-doped fiber ring laser 

      Díaz Lucas, Silvia Upna Orcid; San Fabián García, Noé Upna; Socorro Leránoz, Abián Bentor Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Hindawi, 2017)   Artículo / Artikulua  OpenAccess
      A novel temperature sensor is presented based on a multiwavelength erbium-doped fiber ring laser.The laser is comprised of fiber Bragg grating reflectors as the oscillation wavelength selecting filters.The performance of ...

    • Terahertz sensing based on metasurfaces 

      Beruete Díaz, Miguel Upna Orcid; Jáuregui López, Irati Upna Orcid (Wiley, 2020)   Artículo / Artikulua  OpenAccess
      The terahertz (THz) band has very attractive characteristics for sensing and biosensing applications, due to some interesting features such as being a non-ionizing radiation, very sensitive to weak interactions, thus, ...

    • Thermoelectric generator for high temperature geothermal anomalies: experimental development and field operation 

      Alegría Cía, Patricia; Catalán Ros, Leyre Upna Orcid; Araiz Vega, Miguel Upna Orcid; Casi Satrústegui, Álvaro Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      In the current climate and energy context, it is important to develop technologies that permit increase the use of renewable sources such as geothermal energy. Enhancing the use of this renewable source is particularly ...

    • Thermoelectric generator with passive biphasic thermosyphon heat exchanger for waste heat recovery: design and experimentation 

      Araiz Vega, Miguel Upna Orcid; Casi Satrústegui, Álvaro Upna Orcid; Catalán Ros, Leyre Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid; Astrain Ulibarrena, David Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      One of the measures to fight against the current energy situation and reduce the energy consumption at an industrial process is to recover waste heat and transform it into electric power. Thermoelectric generators can be ...

    • Thermoelectric heat recovery in a real industry: from laboratory optimization to reality 

      Casi Satrústegui, Álvaro Upna Orcid; Araiz Vega, Miguel Upna Orcid; Catalán Ros, Leyre Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      Thermoelectricity, in the form of thermoelectric generators, holds a great potential in waste heat recovery, this potential has been studied and proved in several laboratory and theoretical works. By the means of a ...

    • Three categories of set-valued generalisations from fuzzy sets to interval-valued and Atanassov intuitionistic fuzzy sets 

      Couso, Inés; Bustince Sola, Humberto Upna Orcid (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      Many different notions included in the fuzzy set literature can be expressed in terms of functionals defined over collections of tuples of fuzzy sets. During the last decades, different authors have independently generalised ...

    • THz sensing with anomalous extraordinary optical transmission hole arrays 

      Jáuregui López, Irati Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Kuznetsov, Sergei A.; Nikolaev, Nazar A.; Beruete Díaz, Miguel Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Subwavelength hole array (HA) metasurfaces support the so-called extraordinary optical transmission (EOT) resonance that has already been exploited for sensing. In this work, we demonstrate the superior performance of a ...

    • Towards environmental RF-EMF assessment of mmwave high-node density complex heterogeneous environments 

      Celaya Echarri, Mikel Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Rodríguez Corbo, Fidel Alejandro; López Iturri, Peio Upna Orcid; Ramos González, Victoria; Alibakhshikenari, Mohammad; Shubair, Raed M.; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      The densification of multiple wireless communication systems that coexist nowadays, as well as the 5G new generation cellular systems advent towards the millimeter wave (mmWave) frequency range, give rise to complex ...

    • Towards interval uncertainty propagation control in bivariate aggregation processes and the introduction of width-limited interval-valued overlap functions 

      Asmus, Tiago Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid; Bedregal, Benjamin Upna Orcid; Sanz Delgado, José Antonio Upna Orcid; Mesiar, Radko; Bustince Sola, Humberto Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      Overlap functions are a class of aggregation functions that measure the overlapping degree between two values. They have been successfully applied as a fuzzy conjunction operation in several problems in which associativity ...

    • Towards sub-meter level UWB indoor localization using body wearable sensors 

      Otim, Timothy Upna; Bahillo, Alfonso; Enrique Díez, Luis; López Iturri, Peio Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Thanks to its ability to provide sub-meter level positioning accuracy, Ultrawideband (UWB) has found wide use in several wireless body area network (WBAN) applications such as ambient assisted living, remote patient ...

    • Trayectorias de máxima rigidez de un robot redundante actuando como soporte en el mecanizado de paredes delgadas 

      Aginaga García, Jokin Upna Orcid; García Cuesta, Iván; Iriarte Goñi, Xabier Upna Orcid; Plaza Puértolas, Aitor Upna Orcid (Universitat Politècnica de València, 2023)   Artículo / Artikulua  OpenAccess
      La precisión de un robot está ligada a su rigidez. En comparación con la máquina herramienta tradicional, los robots industriales tienen un gran espacio de trabajo como ventaja, pero una rigidez reducida como desventaja. ...
      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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