Now showing items 229-248 of 373

    • Manufacture and characteristics of wide bandwith, 3-D, EBG crystals for sub-millimetre antenna substrates 

      Azcona, L.; Alderman, B.; Huggard, P.G.; Gonzalo García, Ramón Upna; Martínez Pascual, Beatriz Upna; Ederra Urzainqui, Íñigo Upna; Río Bocio, Carlos del Upna; Hon, B.P. de; Beurden, M.C. van; Marchand, L.; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Mapping the Pleurotus ostreatus genome 

      Castellón Gadea, Jordi; Pisabarro de Lucas, Gerardo Upna; Ramírez Nasto, Lucía Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Pleurotus ostreatus is a commercially important edible mushroom commonly known as oyster mushroom which has also important biotechnical applications. Industrial production of P.ostreatus is based on a solid fermentation process ...
    • Maternidades: entre el mérito social y la rémora profesional 

      Bogino Larrambebere, Mercedes Upna; Cis, Valeria (2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En este póster se presenta como objeto de estudio la maternidad, un tema clásico en las teorías feministas que engloba distintos discursos teóricos, debates sociales y políticos. Se pretende explorar las presiones y tensiones ...
    • Measurements of a new gaussian profile corrugated horn antenna for millimeter wave applications 

      Gonzalo García, Ramón Upna; Martí Canales, J.; Teniente Vallinas, Jorge Upna; Río Bocio, Carlos del Upna; Sorolla Ayza, Mario Upna (IEEE, 1998)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The measurements results of a new design of corrugated horn antennas [1, 2, 3] following the gaussian expansion are presented in this paper. The performance of two corrugated horn antennas of this kind was verified in ...
    • Mejora de antenas metalo-dieléctricas en la banda de frecuencias GSM-UMTS mediante elementos en transmisión extraordinaria 

      Illescas, Jesús; Estévez, Aritz; Falcone Lanas, Francisco Javier Upna; Marcotegui, José Antonio Upna (2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work a dual band GSM/UMTS antenna is proposed. The antenna is based on a stacked planar structure, where the combination of collimation by Enhanced Transmission and the use of parasitic director elements is ...
    • Mejora de las características de antenas usando superestratos parche-slot-parche (PSP) 

      Betancourt Quiñones, Diego Upna; Ibáñez Loinaz, Asier; Río Bocio, Carlos del Upna (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper the novel Patch-Slot-Patch (PSP) structure is presented. The frequency resonate characteristics of this structure are calculated and measured. Gain enhancement of 15 dB is obtained for PSP structure as ...
    • Mejoras de los parametros de radiacion de una antena choque-gaussiana para cobertura global 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Extremely low sidelobe horn antennas are often required for the actual technology. This type of horn antennas is important to avoid interference with other systems. In this paper a novel design, consisting in attaching ...
    • Mejoras en la identificación de tráfico de aplicación basado en firmas 

      Santolaya Bea, Néstor; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Traffic identification has been based traditionally on transport protocol ports, associating always the same ports with the same applications. Nowadays that assumption is not true and new methods like signature identification ...
    • Las memorias de sostenibilidad de la Global Reporting Initiative 

      Archel Domench, Pablo Upna (Gobierno de Navarra, Departamento de Economía y Hacienda, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En la pasada cumbre de Johanesburgo tuvo lugar la presentación de la Guía para la elaboración de memorias de sostenibilidad de la Global Reporting Initiative (GRI), un extenso documento que contiene pautas para orientar ...
    • Meta-material behaviour of the new Coherently Radiating Periodic Structures (CORPS) 

      Betancourt Quiñones, Diego Upna; Ibáñez Loinaz, Asier; García Esparza, Raúl Upna; Río Bocio, Carlos del Upna (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, the study of the new Coherently Radiating Periodic Structures (CORPS) like a Metamaterial sets out. The shape of the structure under study is composed by two different layers, one layer is an array of ...
    • Metamaterials as super-substrate to enhance dipole antenna performances 

      Sáenz Sáinz, Elena Upna; Gonzalo García, Ramón Upna; Ederra Urzainqui, Íñigo Upna; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, pass band properties of Left Handed Media (LHM) are demonstrated. These properties have been used in order to make a LHM super-substrate that is put over a dipole antenna. This super-substrate is going to ...
    • La metodología mixta en las investigaciones en Ciencias de la Salud. Retos y emergencias 

      García-Orellán, Rosa Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      El objetivo de esta presentación es mostrar los retos en los que nos sumergen las investigaciones en enfermería que aplica una metodología mixta (cuantitativa y cualitativa). El segundo objetivo es profundizar en la ...
    • Micro-drilled optical fiber for enhanced laser strain sensors 

      Pérez Herrera, Rosa Ana Upna; Bravo Acha, Mikel Upna; Roldán Varona, Pablo; Leandro González, Daniel Upna; Rodríguez Cobo, L.; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna (SPIE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, we present an experimental measurement of temperature and strain sensitivities of a micro-drilled optical fiber (MDOF). The MDOF consisted of a quasi-randomly distributed reflector along a single mode fiber ...
    • Microstructured optical fiber sensor for soil moisture measurements 

      López Aldaba, Aitor Upna; López Torres, Diego Upna; Campo-Bescós, Miguel Upna; López Rodríguez, José Javier; Yerro Lizarazu, David; Elosúa Aguado, César Upna; Arregui San Martín, Francisco Javier Upna; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna (Optical Society of America, 2018)   Contribución a congreso / Biltzarrerako ekarpena
      A discrete sensor based on a Sn0₂-FP (Fabry-Pérot) cavity is presented and characterized in real soil conditions. Results are compared, for the first time to our knowledge, with a commercial capacitive sensor and gravimetric ...
    • Midiendo retardos y pérdidas en las redes móviles de alta velocidad 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Mobile networks are constantly evolving, but still, due to their nature, it is not trivial to analayse how they face up different kinds of traffic. On the Internet a wide range of services can be found. Usually the majority ...
    • Mitigation of modulation instability in Brillouin distributed fiber sensors by using orthogonal polarization pulses 

      Urricelqui Polvorinos, Javier Upna; Alem, Mehdi; Sagüés García, Mikel Upna; Thévenaz, Luc; Loayssa Lara, Alayn Upna; Soto, Marcelo A. (SPIE, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A technique based on the use of orthogonally-polarized pulses is proposed to mitigate the detrimental impact of modulation instability on Brillouin distributed fiber sensors. While the theoretical underpinnings of the ...
    • Modelling of vibrato production 

      Arroabarren Alemán, Ixone Upna; Carlosena García, Alfonso Upna (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a novel Non-Interactive Source-Filter model for singing voice, incorporating vibrato, is proposed. In this way the periodic frequency variation, peculiar to vibrato is included in a simplified signal model ...
    • Modern corrugated horn antenna design for extremely low sidelobe level 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The present paper deals with the design of modern corrugated horn antennas for extremely low sidelobe level with the use of the well known corrugated Gaussian Profiled Horn Antenna aperture (corrugated GPHA’s) to improve ...
    • Modulated fiber ring laser and its application in high-sensitivity temperature sensors 

      Pérez Herrera, Rosa Ana Upna; Tainta Ausejo, Santiago Upna; Erro Betrán, María José Upna; López-Amo Sáinz, Manuel Upna (SPIE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This work presents an experimental demonstration of a scheme based on an internally modulated fiber ring laser for high-sensitivity temperature sensing. The attained temperature resolution has been as low as ± 2pm even ...
    • Molecular characterization of A cellobiohydrolase gene family in the fungus Pleurotus ostreatus 

      Eizmendi Goicoechea, Arantza; Sannia, Giovanni; Ramírez Nasto, Lucía Upna; Pisabarro de Lucas, Gerardo Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Cellulose is the most abundant biological polymer on Earth. Its chemical composition consists of D-glucose units linked by β-1,4- glycosidic bonds forming linear polymeric chains with a reducing and a non-reducing ...