Envíos recientes

  • Dynamics of axially symmetric perturbed Hamiltonians in 1:1:1 resonance 

    Carrasco, Dante; Palacián Subiela, Jesús Francisco Upna; Vidal, Claudio; Vidarte, Jhon; Yanguas Sayas, Patricia Upna (Springer, 2018)   Artículo / Artikulua
    We study the dynamics of a family of perturbed three-degree-of-freedom Hamiltonian systems which are in 1:1:1 resonance. The perturbation consists of axially symmetric cubic and quartic arbitrary polynomials. Our analysis ...
  • Un algoritmo distribuido de detección y resolución de interbloqueo con coste lineal y carácter dinámico 

    Castillo Latorre, María Antonia Upna (2017)   Tesis doctoral / Doktoretza tesia  OpenAccess
    En esta tesis se presenta un algoritmo para la detección y resolución de interbloqueos en sistemas distribuidos para el modelo de solicitud único recurso. El algoritmo resuelve todos los interbloqueos que aparecen en el ...
  • Representaciones numéricas de semigrupos totalmente ordenados 

    Miguel Velasco, Juan Ramón de Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 1995)   Tesis doctoral / Doktoretza tesia  OpenAccess
    En esta memoria se estudia la posibilidad de obtener representaciones numéricas de semigrupos totalmente ordenados. En este caso, el objetivo es respetar tanto la estructura de orden, como la algebraica adicional. Denominaremos ...
  • Singular reduction of resonant Hamiltonians 

    Meyer, Kenneth Ray; Palacián Subiela, Jesús Francisco Upna; Yanguas Sayas, Patricia Upna (IOP PublishingLondon Mathematical Society, 2018)   Artículo / Artikulua
    We investigate the dynamics of resonant Hamiltonians with n degrees of freedom to which we attach a small perturbation. Our study is based on the geometric interpretation of singular reduction theory. The flow of the ...
  • Oscillatory motions in restricted N-body problems 

    Alvarez-Ramírez, Martha; Rodríguez García, Antonio Upna; Palacián Subiela, Jesús Francisco Upna; Yanguas Sayas, Patricia Upna (Elsevier, 2018)   Artículo / Artikulua
    We consider the planar restricted N-body problem where the N−1 primaries are assumed to be in a central configuration whereas the infinitesimal particle escapes to infinity in a parabolic orbit. We prove the existence of ...
  • Challenges in wireless system integration as enablers for indoor context aware environments 

    López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Azpilicueta Fernández de las Heras, Leyre Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
    The advent of fully interactive environments within Smart Cities and Smart Regions requires the use of multiple wireless systems. In the case of user-device interaction, which finds multiple applications such as Ambient ...
  • Characterization of radio propagation channel in urban vehicle to infrastructure environments to support WSNs 

    Granda, Fausto; Azpilicueta Fernández de las Heras, Leyre Upna; Vargas Rosales, César; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    Vehicular ad hoc Networks (VANETs) enable vehicles to communicate with each other as well as with roadside units (RSUs). Although there is a significant research effort in radio channel modelling focused in vehicle to ...
  • Spatial characterization of radio propagation channel in urban vehicle-to-infrastructure environments to support WSNs deployment 

    Granda, Fausto; Azpilicueta Fernández de las Heras, Leyre Upna; Vargas Rosales, César; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2017)   Artículo / Artikulua  OpenAccess
    Vehicular ad hoc Networks (VANETs) enable vehicles to communicate with each other as well as with roadside units (RSUs). Although there is a significant research effort in radio channel modeling focused on vehicle-to-vehicle ...
  • Evaluation of deployment challenges of wireless sensor networks at signalized intersections 

    Azpilicueta Fernández de las Heras, Leyre Upna; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Martínez Carrasco, Carlos; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2016)   Artículo / Artikulua  OpenAccess
    With the growing demand of Intelligent Transportation Systems (ITS) for safer and more efficient transportation, research on and development of such vehicular communication systems have increased considerably in the last ...
  • Radio characterization for ISM 2.4 GHz wireless sensor networks for judo monitoring applications 

    López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Azpilicueta Fernández de las Heras, Leyre Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2014)   Artículo / Artikulua  OpenAccess
    In this work, the characterization of the radio channel for ISM 2.4GHz Wireless Sensor Networks (WSNs) for judo applications is presented. The environments where judo activity is held are usually complex indoor scenarios ...
  • 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 ...
  • An easy to deploy street light control system based on wireless communication and LED technology 

    Elejoste Larrucea, Pilar; Angulo Martínez, Ignacio; Perallos Ruiz, Asier; Chertudi Ozamiz, Aitor; García Zuazola, Ignacio Julio; Moreno, Asier; Azpilicueta Fernández de las Heras, Leyre Upna; Astrain Escola, José Javier Upna; Falcone Lanas, Francisco Javier Upna; Villadangos Alonso, Jesús Upna (MDPI, 2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    This paper presents an intelligent streetlight management system based on LED lamps, designed to facilitate its deployment in existing facilities. The proposed approach, which is based on wireless communication technologies, ...
  • Adjusting fuzzy automata for string similarity measuring 

    Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; González de Mendívil Moreno, José Ramón Upna; Garitagoitia Padrones, José Ramón Upna; Fariña Figueredo, Federico Upna (EUSFLAT, 2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    In this paper, we introduce a fuzzy automaton for computing the similarity between pairs of strings and a genetic method for adjusting its parameters. The fuzzy automaton models the edit operations needed to transform ...
  • Aprender matemáticas con el ordenador 

    Bujanda Cirauqui, Blanca Upna; Ferreira González, Chelo Upna (Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa, 2004)   Libro / Liburua  OpenAccess
    Los futuros perfiles profesionales de nuestros actuales alumnos universitarios están cambiando vertiginosamente. Uno de los grandes cambios es el que viene dado por la incorporación del ordenador a la mayoría (casi todos) ...
  • Designing and implementing digital educational tools for children and youth with special needs using natural interfaces 

    Bossavit, Benoît Upna (2016)   Tesis doctoral / Doktoretza tesia  OpenAccess
    Esta tesis se centra en el potencial pedagógico de Interfaces Naturales de Usuario (NUIs) y su aplicación en distintos ámbitos educativos. Las NUIs son interacciones remotas basadas en movimientos gestuales del cuerpo y ...
  • New multiplexing structures for fiber optic sensors 

    Leandro González, Daniel Upna (2016)   Tesis doctoral / Doktoretza tesia  OpenAccess
    El campo de la fibra óptica ha sufrido una rápida evolución durante las últimas décadas debido a sus buenas prestaciones en aplicaciones de telecomunicaciones. Aprovechando este avance científico y técnico en componentes ...
  • Holographic acoustic elements for manipulating levitating particles. Applications in human-computer interaction 

    Marzo Pérez, Asier Upna (2016)   Tesis doctoral / Doktoretza tesia  OpenAccess
    En esta tesis doctoral demostramos simultáneamente atrapamiento 3D, traslación y rotación de las partículas utilizando dispositivos de una sola cara. Esto se logra mediante el ajuste de manera óptima los retardos de fase ...
  • Holographic acoustic elements for manipulation of levitated objects 

    Marzo Pérez, Asier Upna; Seah, Sue Ann; Drinkwater, Bruce W.; Sahoo, Deepak Ranjan; Long, Benjamin; Subramanian, Sriram (Nature Publishing Group, 2015)   Artículo / Artikulua  OpenAccess
    Sound can levitate objects of different sizes and materials through air, water and tissue. This allows us to manipulate cells, liquids, compounds or living things without touching or contaminating them. However, acoustic ...
  • Characterization of wireless channel impact on wireless sensor network performance in public transportation buses 

    Azpilicueta Fernández de las Heras, Leyre Upna; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Zubiri Segura, Cristóbal; Falcone Lanas, Francisco Javier Upna (IEEE, 2015)   Artículo / Artikulua  OpenAccess
    Wireless communications systems are growing rapidly during the last two decades and they are gaining a significant role for multiple communication tasks within public transportation buses. In this work, the impact of ...
  • Analysis of wireless sensor network topology and estimation of optimal network deployment by deterministic radio channel characterization 

    Aguirre Gallego, Erik Upna; López Iturri, Peio Upna; Azpilicueta Fernández de las Heras, Leyre Upna; Astrain Escola, José Javier Upna; Villadangos Alonso, Jesús Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2015)   Artículo / Artikulua  OpenAccess
    One of the main challenges in the implementation and design of context-aware scenarios is the adequate deployment strategy for Wireless Sensor Networks (WSNs), mainly due to the strong dependence of the radiofrequency ...

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