Now showing items 169-188 of 372

    • Gain dependence of measured spectra in coherent Brillouin optical time-domain analysis sensors 

      Mariñelarena Ollacarizqueta, Jon Upna; Urricelqui Polvorinos, Javier Upna; Loayssa Lara, Alayn Upna (SPIE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We report on the effects of large pump pulse powers on Brillouin optical time-domain analysis (BOTDA) sensors based on phase-modulated probe wave and coherent detection. It is found that the large Brillouin gain that comes ...
    • Gamma radiation measurements using an optical fiber laser 

      Pérez Herrera, Rosa Ana Upna; Stancalie, Andrei; Cabezudo Sánchez-Valverde, Pablo Miguel; Sporea, Dan; Negut, Daniel; López-Amo Sáinz, Manuel Upna (Optical Society of America, 2018)   Contribución a congreso / Biltzarrerako ekarpena
      A fiber ring laser cavity configuration was used to analyze the effect of gamma-irradiation over the performance of different types of erbium doped fibers. Preliminary results validates this method to monitor gamma-radiation ...
    • Garantía de calidad de servicio basada en la predicción del ancho de banda 

      Villadangos Alonso, Jesús Upna; Magaña Lizarrondo, Eduardo Upna (2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents the architecture and performance evaluation of a neuronal estimator to predict network load in communication networks. System benchmarks are tested with real network traffic picked up from the 155 Mbps ...
    • Gaussian beam propagation versus Huygens method in non-paraxial conditions 

      Gonzalo García, Ramón Upna; Turullols, Pedro; Río Bocio, Carlos del Upna; Sorolla Ayza, Mario Upna (1997)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present a study about the difference between Gaussian beam propagation and Huygens method to obtain the radiation pattern in the case of non-paraxial conditions. We fix a way to determine the error in the ...
    • Gaussian profiled horn antennas 

      Gonzalo García, Ramón Upna; Teniente Vallinas, Jorge Upna; Río Bocio, Carlos del Upna (1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In many different applications parameters such efficiency, gain, directivity, etc., are really critical. By using the Gaussian techniques presented here, the radiating features of existing horn antenna systems can be ...
    • Generación del modo HE11 a partir de una guía circular lisa monomodo 

      Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna; Teniente Vallinas, Jorge Upna; Sorolla Ayza, Mario Upna (1996)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present an original taper design to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. The proposed corrugated taper has a longitudinal ...
    • A general beam-forming network made with CORPS 

      Betancourt Quiñones, Diego Upna; Río Bocio, Carlos del Upna (2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new beam-forming network concept is introduced. This network is based in the design principles of CORPS. The new proposed structure presents an improvement in design over the traditional beam-forming network since, ...
    • Generation of the HE11 mode from monomode smooth circular waveguide 

      Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna; Sorolla Ayza, Mario Upna (1996)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present an original taper design to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. The proposed corrugated taper has a longitudinal ...
    • Generation of the HE11 mode in rectangular waveguide using gaussian techniques 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Sorolla Ayza, Mario Upna; Río Bocio, Carlos del Upna (IEEE, 1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new and efficient design of a rectangular corrugated waveguide mode converter, from TE10 mode in a smooth rectangular monomode waveguide to HE11 mode in a corrugated rectangular waveguide, is proposed. The main idea ...
    • Génesis de la fiscalidad de «Estado» en el Reino de Navarra (1150-1253) 

      Carrasco Pérez, Juan Upna (FEDHAV, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      El «siglo de las luces» de la Edad Media Occidental (1150-1250) tuvo también su resplandor en el reino de Navarra. Nuestra exposición consta de los siguientes epígrafes: A) El armazón institucional y la geografía ...
    • Genetic breeding of edible mushrooms: from the genome to the production of new varieties of Pleurotus ostreatus 

      Pisabarro de Lucas, Gerardo Upna; Peñas Parrila, María Manuela; Pérez Garrido, Gumersinda Upna; Park, Sang-Kyu; Eizmendi Goicoechea, Arantza; Parada Albarracín, Julián Andrés; Palma Dovis, Leopoldo Upna; Idareta Olagüe, Eneko Upna; Jurado Cabanillas, Javier; Castellón Gadea, Jordi; Ramírez Nasto, Lucía Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The breeding of new varieties of industrially cultivated edible mushrooms must proceed in the framework defined by the breeding objectives, the biological characteristics of the material and the legal and cultural ...
    • Glottal spectrum based inverse filtering 

      Arroabarren Alemán, Ixone Upna; Carlosena García, Alfonso Upna (ISCA, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a new inverse filtering technique for the time-domain estimation of the glottal excitation is presented. This approach uses the DAP modeling for the vocal tract characterization, and a spectral model for the ...
    • Hábitos alimentarios y comparación con las diferentes zonas españolas 

      Chocarro Eguaras, Raquel Upna (Gobierno de Navarra, Departamento de Economía y Hacienda, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      España ha sufrido importantes transformaciones a nivel económico, demográfico, social y cultural en la última década que han supuesto modificaciones en la estructura de la dieta y en el trazado del nuevo modelo alimentario. ...
    • Healthcare professionals face the immanence of death embedded in scientific progress and the digital revolution 

      García-Orellán, Rosa Upna (2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Healthcare professionals como face to face with death as part of their daily routine. This happens in emergencies; but it also airses as life is ending, when palliative care is the only tratment thar remains available for ...
    • Herramienta de gestión en tiempo real de redes de área extensa 

      Magaña Lizarrondo, Eduardo Upna; Aracil Rico, Javier Upna; Villadangos Alonso, Jesús Upna (1998)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents PROMIS, a new network management tool based on a distributed architecture of traffic probes. It allows network managers to monitor traffic from any wide area network segment in real time using a WWW ...
    • High efficient dipole antennas by using left-handed superstrates 

      Sáenz Sáinz, Elena Upna; Gonzalo García, Ramón Upna; Ederra Urzainqui, Íñigo Upna; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper deals with pass band properties of Left Handed Media (LHM) to enhance dipole antenna performances. The LHM properties have been used in order to make high directivity antennas with good return loss features. The ...
    • High order mode beam waveguide for technological medium power millimeter wave applications 

      Río Bocio, Carlos del Upna; Gonzalo García, Ramón Upna; Marín Pilz, Miguel Upna; Sorolla Ayza, Mario Upna; Möbius, Arnold; Thumm, Manfred (1995)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The use of medium power millimeter wave CW gyrotrons (10- 30 kW and 30-100 GHz) has several potential applications in advanced materials processing. Since a stochastic field distribution in the applicator is desirable ...
    • High sensitivity fiber-optic liquid level sensor using biconical tapered fibers 

      Júdez Colorado, Aitor; Leandro González, Daniel Upna; Pérez Herrera, Rosa Ana Upna; Galarza Galarza, Marko; López-Amo Sáinz, Manuel Upna (Optical Society of America, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A liquid level sensor is presented using a biconical tapered standard single-mode fiber, being its main characteristic an outstanding sensitivity for a low cost transducer. Temperature compensation is enabled with the same ...
    • High-order PLL design with constant phase margin 

      Ugarte Gil, Mikel Upna; Carlosena García, Alfonso Upna (IEEE, 2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we describe a novel procedure to design high-type high-order Phase Locked Loops (PLLs) from lower order prototypes, preserving a prescribed Phase Margin (PM). The method builds on a model recently proposed ...
    • High-resolution transversal load sensor using a random distributed feedback fiber laser 

      Miguel Soto, Verónica de; Leandro González, Daniel Upna; López-Amo Sáinz, Manuel Upna (SPIE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a new application of random distributed feedback lasers to fiber optic sensing has been presented. The particular properties of these lasers, such as the lack of longitudinal modes and high stability, have ...