• Implementation of context aware e-health environments based on social sensor networks 

      Aguirre Gallego, Erik Upna Orcid; Led Ramos, Santiago Upna Orcid; López Iturri, Peio Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Serrano Arriezu, Luis Javier Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      In this work, context aware scenarios applied to e-Health and m-Health in the framework of typical households (urban and rural) by means of deploying Social Sensors will be described. Interaction with end-users and ...
    • Implementation of wireless sensor network architecture for interactive shopping carts to enable context-aware commercial areas 

      López Iturri, Peio Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Astrain Escola, José Javier Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Salinero, Eduardo; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Upna Orcid (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      An interactive shopping cart to enable context aware environments within large commercial areas is presented. A wireless sensor network was designed, with specific nodes embedded within the shopping carts and infrastructure ...
    • An in-reflection strain sensing head based on a Hi-Bi photonic crystal fiber 

      Rota Rodrigo, Sergio Upna; Rodrigues Pinto, Ana Margarida Upna; Bravo Acha, Mikel Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (MDPI, 2013)   Artículo / Artikulua  OpenAccess
      A photonic crystal fiber-based sensing head is proposed for strain measurements. The sensor comprises a Hi-Bi PCF sensing head to measure interferometric signals in-reflection. An experimental background study of the sensing ...
    • Increasing surface plasmons propagation via photonic nanojets with periodically spaced 3D dielectric cuboids 

      Pacheco-Peña, Víctor Upna Orcid; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel Upna Orcid (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom ...
    • Increasing the sensitivity of an optic level sensor with a wavelength and phase sensitive single-mode multimode single-mode (SMS) fiber structure 

      Fuentes Lorenzo, Omar Upna; Del Villar, Ignacio Upna Orcid; Vento, José R.; Socorro Leránoz, Abián Bentor Upna Orcid; Gallego Martínez, Elieser Ernesto; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      The sensitivity of a liquid level sensor based on a single-mode-multimode-single-mode fiber structure has been increased by hydrofluoric acid etching. The etching process was analyzed and monitored both theoretical and ...
    • Independent component analysis as a tool to eliminate artifacts in EEG. A quantitative study 

      Iriarte, Jorge; Urrestarazu, Elena; Valencia Ustárroz, Miguel; Alegre, Manuel; Malanda Trigueros, Armando Upna Orcid; Viteri, César; Artieda, Julio (Lippincott, Williams & Wilkins, 2003)   Artículo / Artikulua  OpenAccess
      Independent component analysis (ICA) is a novel technique that calculates independent components from mixed signals. A hypothetical clinical application is to remove artifacts in EEG. The goal of this study was to apply ...
    • Indium tin oxide refractometer in the visible and near infrared via lossy mode and surface plasmon resonances with Kretschmann configuration 

      Torres Landívar, Víctor Upna; Beruete Díaz, Miguel Upna Orcid; Sánchez Zábal, Pedro Upna Orcid; Del Villar, Ignacio Upna Orcid (AIP Publishing, 2016)   Artículo / Artikulua  OpenAccess
      An indium tin oxide (ITO) refractometer based on the generation of lossy mode resonances (LMRs) and surface plasmon resonances (SPRs) is presented. Both LMRs and SPRs are excited, in a single setup, under grazing angle ...
    • Induction theorem analysis of resonant nanoparticles: design of a huygens source nanoparticle laser 

      Liberal Olleta, Íñigo Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Gonzalo García, Ramón Upna Orcid; Ziolkowski, Richard W. (American Physical Society, 2014)   Artículo / Artikulua  OpenAccess
      We propose an advanced formulation of standard antenna theory for the basic investigation and design of resonant nanoparticles. This methodology is based on transforming the original scattering problem into a radiation ...
    • Influence in cladding mode distribution of overlay deposition on long-period fiber gratings 

      Del Villar, Ignacio Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Optical Society of America, 2006)   Artículo / Artikulua  OpenAccess
      A thin overlay of higher refractive index than that of the cladding of a long-period fiber grating induces in cladding modes strong variations in effective index, mode profile, cross-coupling coefficient with the core ...
    • Influence of saturable absorbers on fiber ring laser sensors 

      Rodríguez Cobo, Luis; Quintela, M. A.; Ruiz Lombera, Rubén; Pérez Herrera, Rosa Ana Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid; López Higuera, José Miguel (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a fiber ring laser sensor has been employed to analyze the influence of passive Er-doped fiber acting as saturable absorber. Lasing modes of fiber ring lasers can be reduced by properly locating a saturable ...
    • Influence of the power supply on the energy efficiency of an alkaline water electrolyser 

      Ursúa Rubio, Alfredo Upna Orcid; Marroyo Palomo, Luis Upna Orcid; Gubía Villabona, Eugenio Upna Orcid; Gandía Pascual, Luis Upna Orcid; Diéguez Elizondo, Pedro Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (Elsevier, 2009)   Artículo / Artikulua  OpenAccess
      Electric energy consumption represents the greatest part of the cost of the hydrogen produced by water electrolysis. An effort is being carried out to reduce this electric consumption and improve the global efficiency ...
    • Influence of waist length in lossy mode resonances generated with coated tapered single mode optical fibers 

      Socorro Leránoz, Abián Bentor Upna Orcid; Del Villar, Ignacio Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2011)   Artículo / Artikulua  OpenAccess
      In this work, the generation of electromagnetic resonances due to the deposition of a nanocoating on a tapered single-mode optical fiber is analyzed. The layer-by-layer technique is used to control the thickness of the ...
    • Integración de tecnologías inalámbricas en sistemas de control y monitorización 

      Nazábal Urriza, Juan Antonio Upna (2014)   Tesis doctoral / Doktoretza tesia  OpenAccess
      En este trabajo se explora el concepto de ‘Internet of things’ y la integración de diferentes tecnologías de sensado en un mismo sistema de monitorización y control remoto. Básicamente la idea consiste en que todo esté ...
    • Intelligent vehicle communication: deterministic propagation prediction in transportation systems 

      Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Vargas Rosales, César; Falcone Lanas, Francisco Upna Orcid (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      Intelligent Transportation Systems (ITS) are currently under intense research and development for making transportation safer and more efficient. The development of such vehicular communication systems requires accurate ...
    • Interferometric vs wavelength selective optical fiber sensors for cryogenic temperature measurements 

      Miguel Soto, Verónica de Upna Orcid; Leandro González, Daniel Upna Orcid; López Aldaba, Aitor Upna; Beato López, Juan Jesús Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna Orcid (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a preliminary study of the behavior of two different interferometric fiber optic sensors and two different wavelength selective fiber optic sensors is performed. A photonic cristal fiber Fabry-Pérot interferometer, ...
    • Internal modulation of a Random fiber laser 

      Bravo Acha, Mikel Upna Orcid; Fernández Vallejo, Montserrat Upna; López-Amo Sáinz, Manuel Upna Orcid (Optical Society of America, 2013)   Artículo / Artikulua  OpenAccess
      A characterization of a modulated random mirror laser has been experimentally carried out. Unlike conventional internally modulated fiber lasers, no distortion of the modulating frequency or self-mode-locking effects were ...
    • Introducción de la bocina en el lazo de optimización de sistemas de reflectores 

      Delgado, D.; Teniente Vallinas, Jorge Upna Orcid; Río Bocio, Carlos del Upna Orcid (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In the design process of a complete antenna system based on reflectors, the feed real performance is usually included once the reflectors have been optimized with an ideal feed. In this paper, the proposal is to include ...
    • Is there a frontier in sensitivity with lossy mode resonance (LMR) based refractometers? 

      Ozcariz Celaya, Aritz Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Zubiate Orzanco, Pablo Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Nature Publishing Group, 2017)   Artículo / Artikulua  OpenAccess
      A tin dioxide thin layer has been studied in order to improve the sensitivity of lossy mode resonances (LMR) based sensors. The effects of the thin film thickness and the polarization of light in a SnO2 coated D-shaped ...
    • IVAN: Intelligent van for the distribution of pharmaceutical drugs 

      Moreno, Asier; Angulo Martínez, Ignacio; Perallos Ruiz, Asier; Landaluce, Hugo; García Zuazola, Ignacio Julio; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Astrain Escola, José Javier Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid (MDPI, 2012)   Artículo / Artikulua  OpenAccess
      This paper describes a telematic system based on an intelligent van which is capable of tracing pharmaceutical drugs over delivery routes from a warehouse to pharmacies, without altering carriers' daily conventional tasks. ...
    • Ku band low profile asymmetric Bull’s-Eye antenna with reduced side lobes and monopole feeding 

      Beaskoetxea Gartzia, Unai Upna Orcid; Torres García, Alicia E. Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      In this paper, a linearly polarized low profile and asymmetric Bull’s-Eye leaky wave antenna fed by a monopole operating at 13 GHz is presented. Broadside radiation from the monopole is achieved by surrounding it with an ...

      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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