Recent Submissions

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber 

    López Aldaba, Aitor Upna; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations ...
  • Influence of saturable absorbers on fiber ring laser sensors 

    Rodríguez Cobo, L.; Quintela, M. A.; Ruiz Lombera, Rubén; Pérez Herrera, Rosa Ana Upna; López-Amo Sáinz, Manuel Upna; 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 ...
  • Simultaneous temperature and vibration monitoring using an all-PM fiber loop mirror interferometer 

    Leandro González, Daniel Upna; López-Amo Sáinz, Manuel Upna (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    In this work, an all-polarization maintaining fiber loop mirror interferometer is presented and validated as vibration and temperature sensor without crosstalk between measurands. The system is entirely built using ...
  • Polyaniline deposition on tilted fiber Bragg grating for pH sensing 

    López Aldaba, Aitor Upna; González Vila, Á.; Debliquy, M.; López-Amo Sáinz, Manuel Upna; Caucheteur, C.; Lahem, D. (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    In this paper, we present the results of a new pH sensor based on a polyaniline (PAni) coating on the surface of a tilted fiber Bragg grating. The pH-sensitive PAni was deposited by in situ chemical oxidative polymerization. ...
  • Relative humidity multi-point optical sensors system based on Fast Fourier multiplexing technique 

    López Aldaba, Aitor Upna; López Torres, Diego Upna; Elosúa Aguado, César Upna; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; Arregui San Martín, Francisco Javier Upna; López-Amo Sáinz, Manuel Upna (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    In this paper, a new multipoint optical fiber system for relative humidity measurements based on Sn02-FP (Fabry-Pérot) sensing heads and an optical interrogator as single active device is presented and characterized. The ...
  • Optical power-based interrogation of plasmonic tilted fiber Bragg grating biosensors 

    González Vila, Á.; López Aldaba, Aitor Upna; Kinet, D.; Mégret, P.; López-Amo Sáinz, Manuel Upna; Caucheteur, C. (SPIE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Two interrogation techniques for plasmonic tilted fiber Bragg grating sensors are reported and experimentally tested. Typical interrogation methods are usually based on tracking the wavelength shift of the most sensitive ...
  • Interferometric vs wavelength selective optical fiber sensors for cryogenic temperature measurements 

    Miguel Soto, Verónica de; Leandro González, Daniel Upna; López Aldaba, Aitor Upna; Beato López, Juan Jesús; Pérez de Landazábal Berganzo, José Ignacio; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna (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, ...
  • KISS methodologies for network management and anomaly detection 

    Vega, Carlos; Aracil Rico, Javier Upna; Magaña Lizarrondo, Eduardo Upna (IEEE, 2018)   Contribución a congreso / Biltzarrerako ekarpena
    Current networks are increasingly growing in size, complexity and the amount of monitoring data that they produce, which requires complex data analysis pipelines to handle data collection, centralization and analysis tasks. ...
  • Using modelling techniques to analyze urban freight distribution. A case study in Pamplona (Spain) 

    Álvarez, Pablo; Serrano Hernández, Adrián; Faulín Fajardo, Javier Upna; Juan, Ángel Alejandro (Elsevier, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    The city of Pamplona, in Spain, is currently experiencing several changes regarding sustainable mobility such as pedestrianization of some streets in the city center, and access control to the Old Town for motor vehicles ...
  • Spacing roughness parameters analysis on the EDM of TiB2 

    Torres Salcedo, Alexia; Luis Pérez, Carmelo Upna; Puertas Arbizu, Ignacio Upna (Elsevier, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Titanium diboride (TiB2) is a novel sintered ceramic material which has attracted a great deal of interest because of its excellent mechanical properties, wear resistance and chemical resistance. At present, this ceramic ...
  • Spacing roughness parameters analysis on the EDM of Inconel (R) 600 alloy 

    Torres Salcedo, Alexia Upna; Puertas Arbizu, Ignacio Upna; Luis Pérez, Carmelo Upna (Elsevier, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Many research studies may be found regarding the measurement of surface roughness parameters. Most of them are focused on amplitude parameters as they are the most commonly used in industry, while little research has been ...
  • Design exploration prior to blade multi-disciplinary optimisation 

    Echeverría, Fernando; Mallor Giménez, Fermín Upna; San-Miguel, Unai (IOP Publishing, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    The approach of designing blades as a multi-disciplinary, holistic optimisation implies significant challenges owing to the high complexity of the involved factors such as aerodynamics, elasticity, controller and loads. ...
  • Learning fuzzy measures for aggregation in fuzzy rule-based models 

    Saleh, Emran; Valls Aida; Moreno, Antonio Upna; Romero-Aroca, Pedro; Torra, Vicenç; Bustince Sola, Humberto Upna (Springer Verlag, 2018)   Contribución a congreso / Biltzarrerako ekarpena
    Fuzzy measures are used to express background knowledge of the information sources. In fuzzy rule-based models, the rule confidence gives an important information about the final classes and their relevance. This work ...
  • On the optimal current followers for wide-swing current-efficient amplifiers 

    López Martín, Antonio Upna; Garde Luque, María Pilar; Carvajal, Ramón G.; Ramírez-Angulo, Jaime (IEEE, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    The design of various current followers for the implementation of OTAs with high slew rate and current efficiency is addressed. Two basic current follower topologies are compared, and modifications of both followers to ...
  • Folded Cascode OTA with 5540 MHzpF/mA FoM 

    Garde Luque, María Pilar; López Martín, Antonio Upna; Carvajal, Ramón G.; Ramírez-Angulo, Jaime (IEEE, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    A micropower single-stage folded cascode amplifier able to drive a wide range of capacitive loads is presented. It features class AB operation and includes power-efficient adaptive biasing techniques, which provide enhanced ...
  • 'La normalidad' del riesgo y las dinámicas de poder 

    GARCÍA-ORELLÁN, ROSA Upna (2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Para esta presentación se mostrarán partiendo de investigaciones realizadas, dos situaciones: el cambio que ha supuesto para la práctica del cuidado enfermero el traspaso del modelo paternalista y biologicista, al modelo ...
  • Atando cabos, contando circunferencias 

    Lasa Oyarbide, Aitzol Upna; Rodríguez Wilhelmi, Miguel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Se presenta el análisis de los comportamientos en una cuestión de combinatoria en la Olimpiada Matemática de 2º ESO. El Enfoque ontosemiótico y la Teoría de situaciones didácticas en matemáticas constituyen el marco ...
  • Requisitos del ingreso de personas mayores en centros residenciales 

    Elizari Urtasun, Leyre Upna (Centro de Estudios en Bioderecho, Ética y Salud (CEBES), 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    La forma en que se produce el ingreso de personas mayores en centros residenciales es una cuestión importante en una sociedad que afronta un proceso de envejecimiento y un aumento del número de personas que precisan de un ...
  • Defensa de la universalidad de los derechos humanos y protección de las diferencias 

    Jorqui Azofra, María (Universitat de València, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    La autora duda que existan criterios razonables que nos obliguen a debatirnos entre la uniformización intolerante con las minorías culturales o, la indiferencia recíproca. Solventar el problema de la situación de ilegalidad ...
  • Evaluación de respuestas a una tarea de recuento 

    Rodríguez Wilhelmi, Miguel Upna; Belletich Ruiz, Olga Upna; Lasa Oyarbide, Aitzol Upna; Reina, Luis (2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    La transposición didáctica explica los procesos adaptativos del saber en la escuela. Los desarrollos didácticos han puesto el énfasis en el modo en que estos procesos condicionan las intervenciones razonadas del docente ...

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