Now showing items 343-362 of 373

    • 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 ...
    • Study of the human eye working principle: an impressive high angular resolution system with simple array detectors 

      Betancourt Quiñones, Diego Upna; Río Bocio, Carlos del Upna (IEEE, 2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper the working principle of the human eye is studied since uses very simple detectors, cones and rods, to provide an impressive high angular resolution without using any kind of scanning technique. Usually ...
    • Study on antenna mutual coupling suppression using integrated metasurface isolator for SAR and MIMO applications 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier Upna; Andujar, A.; Anguera, J.; Limiti, Ernesto (IEEE, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A metasurface based decoupling structure that is composed of a square-wave slot pattern with exaggerated corners that is implemented on a rectangular microstrip provides high-isolation between adjacent patch antennas for ...
    • Sub-millimetre wave imaging array configurations using EBG technology 

      Ederra Urzainqui, Íñigo Upna; Gonzalo García, Ramón Upna; Martínez Pascual, Beatriz Upna; Río Bocio, Carlos del Upna; Azcona, L.; Alderman, B.; Huggard, P.G.; Hon, B.P. de; Beurden, M.C. van; Marchand, L.; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Suberb gaussian beam efficiency corrugated horn antennas 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we are presenting the possibilities of corrugated horn antennas that combine horizontal and vertical corrugations.
    • Subvertir el género: mujeres sin maternidad 

      Bogino Larrambebere, Mercedes Upna; Cis, Valeria (2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En este póster se propone el término ‘mujeres sin maternidad’ haciendo referencia a aquellas mujeres que en su trayectoria vital generan una ruptura o subversión de género. En otras palabras, ante la persistencia del ideal ...
    • Synthesis of virtual Brillouin frequency shift profiles in BOTDA sensors using optical source dithering 

      Urricelqui Polvorinos, Javier Upna; Sagüés García, Mikel Upna; Loayssa Lara, Alayn Upna (SPIE, 2014)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate a novel concept for Brillouin optical time domain analysis sensors that is based on synthesizing a virtual Brillouin frequency shift profile along the sensing fiber. The technique is based on modulating the ...
    • Technical specifications and quality control procedures for reducing the uncertainty in PV installations: results of the FP7 project PVCROPS 

      Martínez Moreno, Francisco; Lorenzo Pigueiras, Eduardo; Narvarte Fernández, Luis; Moretón Villagra, Rodrigo; Tyutyundzhiev, Nicolay; Parra Laita, Íñigo de la Upna (EU PVSEC, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      PVCROPS (PhotoVoltaic Cost r€duction, Reliability, Operational performance, Prediction and Simulation) is a project within the European Framework Programme 7 whose objectives are: improving the performance, reliability ...
    • Techniques for better alias resolution in Internet topology discovery 

      García-Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      One of the challenging problems related with network topology discovery in Internet is the process of IP address alias identification. Topology information is usually obtained from a set of traceroutes that provide IP ...
    • Técnicas eficientes de filtrado y análisis de tráfico para la monitorización continua de redes de comunicaciones 

      Ruiz, José Javier; Magaña Lizarrondo, Eduardo Upna; Aracil Rico, Javier Upna; Villadangos Alonso, Jesús Upna (1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents an efficient traffic filtering and analysis architecture for network monitoring. Opposed to the usual network monitoring architectures that provide simultaneous filters as requested by managers (packet ...
    • TIC, innovación organizativa y competitividad en la empresa navarra 

      Bayo Moriones, José Alberto Upna; Billón Currás, Margarita; Lera López, Fernando Upna (Gobierno de Navarra, Departamento de Economía y Hacienda, 2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      La nueva economía se ha venido caracterizando fundamentalmente por el incremento de inversiones por parte de las empresas en nuevas tecnologías de la información y de la comunicación. Sin embargo, también se ha observado ...
    • Title enhancement of the sensitivity of a volatile organic compounds MOF-sensor by means of its structure 

      López Torres, Diego Upna; López Aldaba, Aitor Upna; Elosúa Aguado, César Upna; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna; Arregui San Martín, Francisco Javier Upna (MDPI, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we experimentally compare several core structures of Microstructured Optical Fibers (MOFs) for low-finesse Fabry-Pérot (FP) sensors. These sensors are designed for Volatile Organic Compounds (VOCs) measurements. ...
    • TNS research in progress 

      Izal Azcárate, Mikel Upna; Prieto Suárez, Iria Upna; Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (Universidad Politécnica de Cartagena, Servicio de Documentación, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper summarizes latest works of Telematic, Networks and Services research group (TNS) of Public University of Navarra in the topics of FIERRO thematic network. Last two papers sent to major conferences are ...
    • Tools for the high penetration of PV systems in the EU electrical networks: results of PVCROPS Project 

      Narvarte Fernández, Luis; Marroyo Palomo, Luis Upna; Collares Pereira, Manuel; Tyutyundzhiev, Nicolay; Conlon, Michael; Bouzzan, N.; Guelbenzu Michelena, Eugenio; González, R.; Desportes, Adrien; Simmonds, Gary; Wilkin, Benjamin (EU PVSEC, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The Solar Energy Industrial Initiative established the objective of integrating PV into the grid to provide up to 12% of the EU electricity demand. The FP7 project PVCROPS has developed solutions to allow the high penetration ...
    • Traffic estimation in high-speed communication networks using fuzzy systems 

      Magaña Lizarrondo, Eduardo Upna; Villadangos Alonso, Jesús Upna; Astrain Escola, José Javier Upna (EUSFLAT, 2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We present a practical application of fuzzy systems in communication networks. In this case a fuzzy relational model is developed to estimate the bytes transferred every time unit over a communication link. Such estimation ...
    • Traffic generator using Perlin Noise 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (IEEE, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Study of high speed networks such as optical next generation burst or packet switched networks require large amounts of synthetic traffic to feed simulators. Methods to generate self-similar long range dependent traffic ...
    • Transición coaxial a guía doble ridge cargada 

      Cantora Álvarez, Pablo; Río Bocio, Carlos del Upna; Teniente Vallinas, Jorge Upna (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a new method to design a transition from coaxial waveguide to a loaded double ridge waveguide is proposed. This method allows the use of the large frequency bandwidth ridge waveguides present. In the ...
    • Trascendencia de la cooperación judicial europea en materia civil en el Derecho privado de los estados miembros y sus entes territoriales 

      Chicharro Lázaro, Alicia Upna (FEDHAV, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En el contexto del espacio de libertad, seguridad y justicia, en los últimos tiempos la cooperación judicial en materia civil está siendo un ámbito especialmente dinámico. Gracias a ello la Unión Europea ha dictado ...
    • Two methods for nonparametric spectrum peak discrimination 

      Zivanovic, Miroslav Upna; Carlosena García, Alfonso Upna (2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The conventional DFT-oriented nonparametric interpolation methods, based on time windowing and the DTFT envelope curve resampling (zero padding, Chirp-z [1], frequency scale distortion [2], etc.), can improve the spectrum ...
    • Ubiquitous connected train based on train-to-ground and intra-wagon communications capable of providing on trip customized digital services for passengers 

      Salaberria, Itziar; Perallos Ruiz, Asier; Azpilicueta Fernández de las Heras, Leyre Upna; Falcone Lanas, Francisco Javier Upna; Carballedo, Roberto; Angulo Martínez, Ignacio; Elejoste Larrucea, Pilar; Bahillo, Alfonso; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna (MDPI, 2014)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      During the last years, the application of different wireless technologies has been explored in order to enable Internet connectivity from vehicles. In addition, the widespread adoption of smartphones by citizens represents ...