Ara es mostren els items 150-169 de 193

    • New era of lightning detection from space: application to electric power systems 

      Montañá Puig, Juan; López Trujillo, Jesús Alberto; Van der Velde, Oscar Arnoud; Solà de las Fuentes, Glòria; Romero Durán, David; Morales Rodríguez, Carlos Augusto; Visacro, Silverio; Goodman, Steven J.; Williams, Earle Rolfe; Peterson, Michael J.; Pineda Rüegg, Nicolau; Sousa Arcanjo, Marcelo Augusto; Aranguren Fino, Harby Daniel (2021)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Information about lightning activity and its parameters is necessary to design and evaluate the lightning protection of an electrical power system. This information can be obtained from ground-based lightning detection ...
    • Observation and properties of a sub-cloud bidirectional leader 

      Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Williams, Earle R.; Pineda Ruegg, Nicolau; Romero Durán, David; Solà de las Fuentes, Glòria (2014)
      Text en actes de congrés
      Accés obert
      In this paper we present the evolution of a bidirectional leader which appeared in ‘virgin’ air. In the observations we did not find any delay between the onsets of the two leader ends. The positive leader end presented a ...
    • Observations of Western Mediterranean TLE: LS8000 intracloud lightning and high-speed video 

      Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Romero Durán, David; Soula, Serge; Pineda Rüegg, Nicolau; Bech, Joan; Reglero, V. (2009)
      Comunicació de congrés
      Accés restringit per decisió de l'autor
      Transient luminous events (TLE) are electrical phenomena occurring between the ionosphere and the tops of thunderstorms. First discovered in 1989, the family of TLE now consists of different members: sprites, sprite ...
    • On the classification of self-triggered versus other-triggered lightning flashes 

      Sunjerga, A.; Mostajabi, A.; Pineda Rüegg, Nicolau; Romero Durán, David; Van der Velde, Oscar Arnoud; Montanya, Joan; Azadifar, M.; Rubinstein, M.; Diendorfer, Gergard (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017. The LMA network consists of six stations located ...
    • Polarimetric radar characteristics of lightning initiation and propagating channels 

      Figueras i Ventura, Jordi; Pineda Rüegg, Nicolau; Besic, Nikola; Grazioli, Jacopo; Hering, Alessandro; Van der Velde, Oscar Arnoud; Romero Durán, David; Sunjerga, A.; Mostajabi, A.; Azadifar, M.; Rubinstein, M.; Montañá Puig, Juan; Germann, Urs; Rachidi-Haeri, Farhad (2019-05-27)
      Article
      Accés obert
      In this paper we present an analysis of a large dataset of lightning and polarimetric weather radar data collected in the course of a lightning measurement campaign that took place in the summer of 2017 in the area surrounding ...
    • Potential use of space-based lightning detection in electric power systems 

      Montañá Puig, Juan; López Trujillo, Jesús Alberto; Van der Velde, Oscar Arnoud; Solà de las Fuentes, Glòria; Romero Durán, David; Morales Rodríguez, Carlos Augusto; Visacro, Silverio; Saba, Manuel; Goodman, Steven J.; Williams, Earle R.; Peterson, Michael J.; Pineda, Nicolau; Sousa Arcanjo, Marcelo Augusto; Aranguren Fino, Daniel (2022-12)
      Article
      Accés obert
      Information about lightning activity and its parameters is necessary to design and evaluate the lightning protection of an electrical power system. This information can be obtained from ground-based lightning detection ...
    • Registration of X-rays at 2500 m altitude in association with lightning flashes and thunderstorms 

      Montañá Puig, Juan; Fabró Tàpia, Ferran; Van der Velde, Oscar Arnoud; Romero Durán, David; Solà de las Fuentes, Glòria; Hermoso Costa, Juan Ramón; Soula, Serge; Williams, Earle; Pineda Rüegg, Nicolau (2014)
      Article
      Accés obert
      Electric fields and high-energy radiation of natural lightning measured at close range from a mountaintop tower are discussed. In none of the 12 negative cloud-to-ground upward flashes were X-rays observed. Also no energetic ...
    • Resultado de las medidas de campo eléctrico y electrostático para la caracterización de rayos 

      Montañá Puig, Juan; Hermoso Costa, Juan Ramón; Romero Durán, David; Hermoso Alameda, Blas (2004)
      Comunicació de congrés
      Accés restringit per decisió de l'autor
      Durante el verano del 2003 se realizó en Cataluña una campaña de medidas de campo electrostático y eléctrico en situaciones de tormenta. La finalidad de esta campaña fue la recolección de datos de campo eléctrico cara ...
    • Self-video recording for the integration and assessment of generic competencies 

      Masip Álvarez, Albert; Hervada Sala, Carme; Pàmies Gómez, Teresa; Arias Pujol, Antoni; Jaen Fernandez, Carles; Rodríguez Sorigué, María Cristina; Romero Durán, David; Nejjari Akhi-Elarab, Fatiha; Álvarez del Castillo, María Dolores; Roca Lefler, Marta; Hernández Farràs, Jorge; Montferrer Liñan, Raul (2013)
      Comunicació de congrés
      Accés obert
      This document presents the use of a self-video-recording service for the integration and assessment of certain generic competences (oral and written communication, teamwork and third (English) language) in all degree ...
    • Small scale simulation of lightning using vertical wires deployed by drones: on the land and sea peak current asymetry 

      Montañá Puig, Juan; Fontanes Molina, Pol; Arcanjo, Marcelo; Urbani, Michele; Williams, Earle Rolfe; Romero Durán, David; Horta Bernús, Ricard; López Trujillo, Jesús Alberto; Van der Velde, Oscar Arnoud; Pineda Rüegg, Nicolau (2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work we simulate lightning by means of vertical wires deployed by a multirotor drone under fair weather conditions. These wires, when isolated from ground, acquire an electric potential by virtue of electrostatic ...
    • Spatio-temporal dimension of lightning flashes based on three-dimensional Lightning Mapping Array 

      López Trujillo, Jesús Alberto; Pineda Rüegg, Nicolau; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Fabró Tàpia, Ferran; Romero Durán, David (2017-10-15)
      Article
      Accés obert
      3D mapping system like the LMA - Lightning Mapping Array - are a leap forward in lightning observation. LMA measurements has lead to an improvement on the analysis of the fine structure of lightning, allowing to characterize ...
    • Study of the total lightning activity in a hailstorm 

      Montañá Puig, Juan; Soula, Serge; Pineda Rüegg, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de las Fuentes, Glòria; Bech, Joan; Romero Durán, David (2007)
      Comunicació de congrés
      Accés restringit per decisió de l'autor
      A thunderstorm which developed in North-Eastern region of Spain on 16th June, 2006 is analyzed. This thunderstorm could be severe because it produced hailstones larger than 19 mm. The cell life time was 3h 30 minutes. ...
    • Study of the total lightning activity in a hailstorm 

      Montañá Puig, Juan; Soula, Serge; Pineda, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de las Fuentes, Glòria; Bech, Joan; Romero Durán, David (2009)
      Article
      Accés restringit per decisió de l'autor
      A thunderstorm that developed over northeastern Spain on 16 June 2006 is analyzed. This severe thunderstorm produced hailstones as large as 40 mm and had a lifetime of 3 h and 30 min. Radar cross-sections show strong ...
    • SUPERVISIÓ DE SISTEMES ELÈCTRICS (2n quadrimestre, 1r parcial) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2011-01-27)
      Examen
      Accés restringit a la comunitat UPC
    • SUPERVISIÓ DE SISTEMES ELÈCTRICS (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2004-11-01)
      Examen
      Accés restringit a la comunitat UPC
    • Supervisió de sistemes elèctrics (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2008-01-18)
      Examen
      Accés restringit a la comunitat UPC
    • Supervisió de sistemes elèctrics (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2007-11-06)
      Examen
      Accés restringit a la comunitat UPC
    • SUPERVISIÓ DE SISTEMES ELÈCTRICS (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2009-01-07)
      Examen
      Accés restringit a la comunitat UPC
    • SUPERVISIÓ DE SISTEMES ELÈCTRICS (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2007-01-19)
      Examen
      Accés restringit a la comunitat UPC
    • SUPERVISIÓ DE SISTEMES ELÈCTRICS (Examen 1r Quadr.) 

      Romero Durán, David (Universitat Politècnica de Catalunya, 2006-01-19)
      Examen
      Accés restringit a la comunitat UPC