Articles publicats en revistes: Envíos recientes

Mostrando ítems 421-440 de 574

    • First observation of the decay B¯0s→D0K∗0 and a measurement of the ratio of branching fractions B(B¯0s→D0K∗0)/B(B¯0→D0ρ0) 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, Vol. 706, No. 1 (Novembre 2011), 2011-11-30)
      The first observation of the decay B¯s0→D0K⁎0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1 , is reported. A ...

    • First observation of the decay B0s→K∗0K∗0 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012,Vol. 709, No. 1-2 (Març 2012), 2012-03-13)
      The first observation of the decay $\kstarkstar$ is reported using 35\invpb of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of $49.8 \pm 7.5$ $B^0_s ...

    • Measurement of the CP-violating phase φs in B0s→J/ψπ+π− decays 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012, Vol. 713, No. 4-5 (Juliol), 2012-07-18)
      Measurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ ...

    • Measurement of the D± production asymmetry in 7 TeV pp collisions 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2013, Vol. 718, No. 3 (Gener 2013), 2013-01-08)
      The asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T ...

    • Observation of the decay B0s→D0φ 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2013, Vol. 727, No. 4-5 (Desembre 2013), 2013-12)
      First observation of the decayB0s→D0φis reported usingppcollision data, corresponding to an inte-grated luminosity of 1.0 fb−1, collected by the LHCb experiment at a centre-of-mass energy of 7 TeV. ...

    • Measurement of the cross-section ratio σ(χc2)/σ(χc1) for prompt χc production at √s=7TeV 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters, 2012, Vol. 714, No. 2-5 (Agost), 2012-08-14)
      The prompt production of the charmonium $\chi_{c1}$ and $\chi_{c2}$ mesons has been studied in proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=7$ TeV. The ...

    • High performance Web-of-Things architecture for the smart grid domain 

      Vernet, David; Zaballos, Agustin; Martin de Pozuelo, Ramon; Caballero, Víctor (International Journal of Distributed Sensor Networks. 2015, 2015-12)
      The increasing complexity in the management of Smart Grids is an essential factor in the creation of new technological infrastructures capable of managing the different devices involved in the network. ...

    • Nonuniform Overlapping Method in Designing Microstrip Patch Antennas Using Genetic Algorithm Optimization 

      Jayasinghe, Jeevani; Anguera Pros, Jaume; Uduwawala, Disala; Andújar, Aurora (International Journal of Antennas and Propagation. 2015, 2015-01)
      Genetic algorithm (GA) has been a popular optimization technique used for performance improvement of microstrip patch antennas (MPAs).When using GA, the patch geometry is optimized by dividing the patch ...

    • A Genetic QoS-Aware Routing Protocol for the Smart Electricity Networks 

      Zaballos, Agustin; Vernet, David; Selga Jorba, Josep Maria (International Journal of Distributed Sensor Networks. 2013., 2013-09)
      This paper presents a QoS-aware routing protocol suitable for distribution of smart electricity grids based on heterogeneous machine to machine communications. The distribution Smart Grid needs high ...

    • Contiguous Frequency-Time Resource Allocation andScheduling for Wireless OFDMA Systems with QoS Support 

      Gutiérrez González, Ismael; Aquilué de Pedro, Ricard; Pijoan Vidal, Joan Lluís; Bader, Faouzi (EURASIP Journal on Wireless Communications and Networking, 2009., 2009-04)
      The orthogonal frequency division multiple access (OFDMA) scheme has been selected as a potential candidate for many emerging broadband wireless access standards. In this paper, a new joint scheduling ...

    • Advances in Antenna Technology for Wireless Handheld Devices 

      Anguera Pros, Jaume; Andújar, Aurora; Huynh, Minh-Chau; Orlenius, Charlie; Picher, Cristina; Puente Baliarda, Carles (International Journal of Antennas and Propagation. 2013, 2013-01)
      The constant evolution of wireless handheld devices together with the apparition of multiple wireless communication systemsfosters the antenna community to design new radiating and measurements systems ...

    • Measurement of the effective B0s → K+K- lifetime 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, Vol. 716, No. 3-5, (Octubre 2012), 2012-10-02)
      A precise determination of the effectiveB0s→K+K−lifetime can be used to con-strain contributions from physics beyond the Standard Model in theB0smesonsystem. Conventional approaches selectBmeson ...

    • Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV. 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, Vol. 703, No. 3 (Setembre 2011), 2011-07)
      The cross-section for inclusive Φ meson production in pp collisions at a centre-of-mass energy of s=7 TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section ...

    • Concentrated Ground Plane Booster Antenna Technology for Multiband Operation in Handset Devices 

      Picher, Cristina; Anguera Pros, Jaume; Andújar, Aurora; Puente Baliarda, Carles; Bujalance Jurado, Adrián (Radioengineering, 2014. Vol. 23, 4 (Desembre), 2014-12)
      The current demand in the handset antenna field requires multiband antennas due to the existence of multi-ple communication standards and the emergence of new ones. At the same time, ...

    • Genetic Algorithm Optimization of a High-Directivity Microstrip Patch Antenna Having a Rectangular Profile 

      Ayasinghe, Jeevani; Anguera Pros, Jaume; Uduwawala, Disala (Radioengineering, 2013. Vol. 22, 3 Setembre, 2013-09)
      A single high-directivity microstrip patch antenna (MPA) having a rectangular profile, which can substitute a linear array is proposed. It is designed by using genetic algorithms with the advantage of ...

    • Slotted Circularly Polarized Microstrip Antenna for RFID Application 

      Kumar, Sanjeev; Vishwakarma, Rajesh Kumar; Kumar, Ravi; Anguera Pros, Jaume; Andújar, Aurora (Radioengineering, 2017, Vol. 26, 4 (Desembre), 2017-12)
      A single layer coaxial fed rectangular microstrip slotted antenna for circular polarization (CP) is proposed for radio frequency identification (RFID) application. Two triangular shaped slots and one ...

    • Epidemia: Variable Consistency for Transactional Cloud Databases 

      Arrieta-Salinas, Itziar; Armendáriz-Iñigo, José Enrique; Navarro, Joan (Journal of Universal Computer Science, 2014. Vol. 20, 14, 2014-12)
      Classic replication protocols running on traditional cluster-based databases are currently unable to meet the ever-growing scalability demands of many modern software applications. Recent cloud-based ...

    • Propuesta gráfica de “clasificación y búsqueda emocional de imágenes por internet” adaptada para usuarios discapacitados o no expertos 

      Fonseca, David; Fonseca, David; Pifarré Zaragoza, Marc; Villegas, Eva; Duran, Jaume (Revista Iberoamericana de Sistemas, Cibernética e Informática, Vol. 5, No. 2 (2008), 2008)
      Actualmente está reconocido que la imagen es la forma superior de comunicación. Su uso en cualquier sistema audiovisual está influyendo en cambios culturales que afectan principalmente a la optimización ...

    • Security issues and threats that may affect the hybrid cloud of FINESCE 

      Sánchez, Julia; Corral Torruella, Guiomar; Martin de Pozuelo, Ramon; Zaballos, Agustin (Network Protocols and Algorithms, 2016. Vol.8, 1, 2016-03)
      FINESCE is the Smart Energy use case project of the Future Internet Public Private Partnership Programme. It aims at defining an open infrastructure based on Information and Communications Technology ...

    • Smart Grid ICT Research Lines out of the European Project INTEGRIS 

      Selga Jorba, Josep Maria; Corral Torruella, Guiomar; Zaballos, Agustin; Martin de Pozuelo, Ramon (Network Protocols and Algorithms, 2014. Vol. 6, 2, 2014-06)
      The Smart Grid is at the same time a part of the Internet of Things and an example of a cyber-physical system where the physical power grid is surrounded by many intelligent and communication devices ...