Now showing items 561-580 of 737

    • Low Rate High Frequency Data Transmission from Very Remote Sensors 

      Bergadà Caramés, Pau; Alsina Pagès, Rosa Maria; Vilella Parra, Carles; Regué, Joan Ramon (Remote Sensing - Advanced Techniques and Platforms, 2012-06)
      This chapter deals with the difficulties of transmitting data gathered from sensors placedin very remote areas where energy supplies are scarce. The data link is established bymeans of the ionosphere, ...
    • Fuzzy Logic Control for Multiresolutive Adaptive PN Acquisition Scheme in Time-Varying Multipath Ionospheric Channel 

      Alsina Pagès, Rosa Maria; Mateo Segura, Clàudia; Socoró Carrié, Joan Claudi; Bergadà Caramés, Pau (Fuzzy Logic - Controls, Concepts, Theories and Applications, 2012-03)
      Communication with remote places is a challenge often solved using satellites. However, when trying to reach Antarctic stations, this solution suffers from poor visibility range and high operational ...
    • Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support 

      Gutiérrez González, Ismael; Bader, Faouzi; Aquilué de Pedro, Ricard; Pijoan Vidal, Joan Lluís (EURASIP Journal on Wireless Communications and Networking, 2009, 2009-02)
      The orthogonal frequency divisionmultiple access (OFDMA) scheme has been selected as a potential candidate formany emerging broadband wireless access standards. In this paper, a new joint scheduling and ...
    • Prototyping a Software Defined Utility 

      Martín de Pozuelo, Ramon; Zaballos Diego, Agustín; Navarro Martín, Joan; Corral Torruella, Guiomar (Energies, 2017. Vol. 10, 6, 2017-06)
      The smart grid can be seen as a hybrid system composed by many systems. From a large scale point of view, it combines the electric power system itself and a heterogeneous information and communication ...
    • An example of operation for a partly manned Antarctic geomagnetic observatory and the development of a radio link for data transmission 

      Torta Margalef, Joan Miquel; Marsal Vinadé, Santiago; Riddick, John C.; Vilella Parra, Carles; Altadill Felip, David; Blanch Llosa, Estefania; Cid, Oscar; Curto, Joan J.; De Santis, Angelo; Gaya-Piqué, Luis R.; Mauricio Ferré, Juan; Pijoan Vidal, Joan Lluís; Solé, Germán J.; Ugalde, Arantza (Annals of Geophysics, 2009. Vol. 52, 1 (Febrer), 2009-02)
      The experience acquired from more than ten years of operation of an Antarctic geomagnetic observatory is described along with the development of data transmission facilities. The observatory was deployed ...
    • Sustainable Entrepreneurship in Response to Grand Challenges: What Do We Know and How Do We Move Forward? 

      Villar, Eula Bianca; Miralles, Francesc (Miralles i Torner) (DLSU Business & Economics Review. 2019, Vol. 28, 3, 2019)
      The role of sustainability is gaining ground in management and entrepreneurship research especially in the midst of increasing exposure of the society to grand challenges. This paper provides a narrative ...
    • Unbundling the Influence of Human Capitalon the New Venture’s Performance 

      Giones Valls, Ferran; Gozun, Brian; Miralles, Francesc (Miralles i Torner) (DLSU Business & Economics Review. 2019, Vol. 28, 3, 2018)
      We use a longitudinal dataset on new ventures to assess the effects of human capital factors (education, work experience, and entrepreneurial experience) on new ventures’ performance. Our results show ...
    • Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B , 2013, Vol. 724, No. 1-3 (Juliol, 2013), 2013-07-09)
      Searches for the lepton flavour violating decay $\tau^-\rightarrow \mu^-\mu^+\mu^-$ and the lepton flavour and baryon number violating decays $\tau^-\rightarrow \bar{p}\mu^+\mu^-$ and $\tau^-\rightarrow ...
    • Measurement of the CKM angle γ from a combination of B±→Dh± analyses 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2013, Vol. 726, No. 1-3, (Octubre 2013), 2013-10-07)
      A combination of three LHCb measurements of the CKM angle gamma is presented. The decays B-+/- -> DK +/- and B-+/- -> D pi(+/-) are used, where D denotes an admixture of D-0 and (D) over bar (0) mesons, ...
    • Measurement of the B0s−B¯0s oscillation frequency Δms in B0s→D−s(3)π decays 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012-03-19)
      The B0s–B0soscillation frequency msis measured with 36 pb−1of data collected inppcollisions at √s=7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381B0s→D−sπ+andB0s→D−sπ+π−π+signal ...
    • Measurement of the differential branching fraction of the decay Λ0b → Λμ+ μ− 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2013, Vol. 725, No. 1-3 (Agost 2013), 2013-06)
      The differential branching fraction of the decay $\Lambda_b^0\rightarrow\Lambda\mu^+\mu^-$ is measured as a function of the square of the dimuon invariant mass, $q^2$. A yield of $78\pm12$ $\Lambda_b^ ...
    • Search for direct CP violation in D0 → h−h+ modes using semileptonic B decays 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2013, Vol. 723, No. 1-3 (Juny), 2013-06-10)
      A search for direct CP violation in D0 -> h- h+ (where h=K or pi) is presented using data corresponding to an integrated luminosity of 1.0 fb^-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass ...
    • Measurement of the D+s − D−s production asymmetry in 7 TeV pp collisions 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012, Vol. 713, No. 3, (Juliol), 2012-07-09)
      Heavy quark production in 7 TeV centre-of-mass energy pp collisions at the LHC is not necessarily flavour symmetric. The production asymmetry, A_P, between Ds+ and Ds- mesons is studied using the ...
    • Measurement of the B0s→J/ψK0S branching fraction 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012, Vol. 713, No. 3, (Juliol), 2012-07-09)
      The B0s→J/ψK0S branching fraction is measured in a data sample corresponding to 0.41 fb−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive tothe penguin ...
    • Measurement of the polarization amplitudes and triple product asymmetries in the B s 0 → ϕ ϕ decay 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physics Letters B, 2012, Vo. 713, No. 4-5 (Juliol 2012), 2012-07-18)
      Using 1.0 fb^{-1} of pp collision data collected at a centre-of-mass energy of sqrt{s}=7 TeV with the LHCb detector, measurements of the polarization amplitudes, strong phase difference and triple product ...
    • 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. ...