Ara es mostren els items 5-24 de 24

  • High-speed observations of transient luminous events and lightning (The 2008/2009 Ebro Valley campaign) 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Soula, Serge; Romero Durán, David; Pineda Ruegg, Nicolau; Solà de Las Fuentes, Gloria; March Nomen, Víctor (2010)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • High-speed video of lightning and x-ray pulses during the 2009–2010 observation campaigns in northeastern Spain 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; March Nomen, Víctor; Romero Durán, David; Solà de Las Fuentes, Gloria; Pineda Ruegg, Nicolau (2012-11-01)
    Article
    Accés restringit per política de l'editorial
    This paper summarizes results obtained by the 2009–2010 field campaigns conducted in northeastern Spain using a high speed camera, VHF interferometer, VLF lightning location system and scintillation detectors for energetic ...
  • High-speed video recordings of lightning, electric fields and high-energy detections during thunderstorms in Catalonia Spain 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; Pineda Ruegg, Nicolau; Betz, H.D.; March Nomen, Víctor; Solà de Las Fuentes, Gloria (2010)
    Comunicació de congrés
    Accés obert
    High-speed video recordings of natural lightning flashes show amazing details of this phenomenon. The paper summarizes the results of the 2009 measurement campaign where the combination of electric fields, total ...
  • High-speed videos of laboratory leaders emerging from wind turbine blade tips 

    Montañá Puig, Juan; March Nomen, Víctor; Hermoso Alameda, Blas; Hermoso Costa, Juan Ramón (2010)
    Comunicació de congrés
    Accés obert
    This paper presents some observation results of the attachment test of a wind turbine blade as described in the upgrade of the IEC-61400-24. The optical observations were performed by means of high-speed video and ...
  • Lightning attachement test on a scale aircraft model as subject for educational purposes 

    Romero Durán, David; March Nomen, Víctor; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2010)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    A new subject on lightning protection of aircraft has been developed at the Technical University of Catalonia. This elective subject is implemented according to project-based learning (PBL). In this way, during the ...
  • Lightning detections and electrostatic field related to a flash that damaged a building in the city of Terrassa (Spain) 

    Montañá Puig, Juan; March Nomen, Víctor; Solà de Las Fuentes, Gloria; Romero Durán, David; Hermoso Alameda, Blas (2007)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • Negative lightning current parameters and detection efficiency for two operational LLS in Catalonia (NE Spain) 

    March Nomen, Víctor; Montañá Puig, Juan; Pineda Ruegg, Nicolau (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Lightning current parameters derived from Lightning Location Systems (LLS) have been used in the past to assess their influence in the local performance of the Network. The paper presents an analysis of the statistical ...
  • The 2007 objectives of the Eagle Nest Tower 

    Solà de Las Fuentes, Gloria; Montañá Puig, Juan; Romero Durán, David; March Nomen, Víctor (2007)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • The influence of the voltage-time derivative in X-rays emission from laboratory sparks 

    March Nomen, Víctor; Montañá Puig, Juan (2010-08-23)
    Article
    Accés obert
    X-ray produced by laboratory sparks in air at atmospheric pressure for rod-rod and rod-plane configurations were observed. A total of 585 sparks were applied with both polarities. The paper shows the effects of the voltage ...
  • Total lightning activity and electrostatic field in a hail-bearing thunderstorm in Catalonia 

    Montañá Puig, Juan; Pineda Ruegg, Nicolau; Soula, Serge; March Nomen, Víctor (2006)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    This paper presents the analysis of a hailstorm episode occurred in the city of Terrassa (Barcelona) Spain on the 10th July of 2005 (Figure 1.a)
  • Total lightning detections of lightning flashes recorded by means of high-speed videos 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; March Nomen, Víctor; Solà de Las Fuentes, Gloria; Pineda Ruegg, Nicolau (2011)
    Text en actes de congrés
    Accés restringit per decisió de l'autor
    A detailed analysis of two lightning flashes is presented. High speed video, total lightning detections and electric field measurements are the basis of the study. In general, the observed negative cloud-to-ground ...
  • Total lightning observations to wind turbines 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; March Nomen, Víctor; Solà de Las Fuentes, Gloria; Pineda Ruegg, Nicolau; Hermoso Alameda, Blas; Senosiáin Miquélez, Vicente (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In summer 2011 a new VHF Lightning Mapping Array was installed at the northeast of Spain. In that area a VHF interferometer and a VLFILF lightning detection networks are also operative. The close presence of wind farms in ...
  • Total lightning, electrostatic field and meteorological radar applied to lightning hazard warning 

    Montañá Puig, Juan; Aranguren Fino, Daniel; Pineda Ruegg, Nicolau; Solà de Las Fuentes, Gloria; Romero Durán, David; March Nomen, Víctor (2008)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    This paper presents the analysis of various combinations of data sets with the purpose of evaluation of lightning warning methods. The data sets include CG flashes, IC sources, radar reflectivity and, for some specific ...
  • Two upward lightning at the Eagle Nest tower 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; March Nomen, Víctor; Solà de Las Fuentes, Gloria; Pineda Ruegg, Nicolau; Soula, Serge; Hermoso Alameda, Blas (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A new instrument composed by a high speed camera, two high energy detectors, a E-field antenna and a VHF antenna were installed at the Eagle Nest tower (northeast of Spain) during summer 2011. With this equipment several ...
  • Two-years (2004-2005) of Safir evaluation in Catalonia 

    Montañá Puig, Juan; Pineda Ruegg, Nicolau; March Nomen, Víctor; Illa Arnau, Àngel; Romero Durán, David; Solà de Las Fuentes, Gloria (2006)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • Winter lightning activity in specific global regions and implications to wind turbines and tall structures 

    March Nomen, Víctor; Montañá Puig, Juan; Fabró Tàpia, Ferran; Van der Velde, Oscar Arnoud; Romero Durán, David; Solà de Las Fuentes, Gloria; Freijo Álvarez, Modesto; Pineda Rüegg, Nicolau (Zakon Group, 2016)
    Text en actes de congrés
    Accés obert
    The paper presents winter lightning maps on specific regions in the northern hemisphere. Four different degrees of winter lightning activity are defined based on information derived from Japanese case. Based on this reference ...
  • X-rays and microwave RF power from high voltage laboratory sparks 

    Montañá Puig, Juan; Fabró Tàpia, Ferran; March Nomen, Víctor; Van der Velde, Oscar Arnoud; Solà de Las Fuentes, Gloria; Romero Durán, David; Argemí Ribera, Oriol (2015-07-16)
    Article
    Accés obert
    Lightning flashes involve high energy processes that still are not well understood. In the laboratory, high voltage pulses are used to produce long sparks in open air allowing the production of energetic radiation. In this ...
  • X-rays and microwave RF power from high voltage laboratory sparks 

    Montañá Puig, Juan; Fabró Tàpia, Ferran; March Nomen, Víctor; Van der Velde, Oscar Arnoud; Solà de Las Fuentes, Gloria; Romero Durán, David (2014)
    Text en actes de congrés
    Accés obert
    Lightning involves high energy processes that still are not well understood. In the laboratory voltages pulses are used to produce long sparks allowing the production of energetic radiation. In this paper X-rays emitted ...
  • X-rays from laboratory sparks in air: the relationship between runaway electrons and the electric field 

    March Nomen, Víctor; Montañá Puig, Juan; Romero Durán, David; Solà de Las Fuentes, Gloria; Van der Velde, Oscar Arnoud (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This article presents an experiment in which the gap distance was varied between 46 and 84 cm. Series of 15 voltage impulses were applied for each distance and different peak voltages with a rise time of 600 ns. The results ...
  • X-Rays from long laboratory sparks in air 

    Montañá Puig, Juan; March Nomen, Víctor; Kochkin, Pavlo (2016-07-01)
    Capítol de llibre
    Accés obert
    This collective book provides a review of research concentrated on runaway electron beams and X-rays in an inhomogeneous electric field with different gases at increased pressure. Attention is also given to supershort ...