Ara es mostren els items 72-91 de 99

    • On the power and frequency of auditory signals on emergency vehicles 

      Balastegui Manso, Andreu; Romeu Garbí, Jordi; Clot Razquin, Arnau; Martín Román, Sara-Regina (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Sirens from emergency vehicles are particularly annoying for people living in the vicinities of hospitals. The power regulations for sirens vary for different countries as well as it does their frequency content. In order ...
    • On the use of a linear microphone array to measure wind turbine aerodynamic noise 

      Genesca Francitorra, Meritxell; Romeu Garbí, Jordi; Pàmies Gómez, Teresa; Solé, Jaume (2013-01)
      Article
      Accés restringit per política de l'editorial
      A linear microphone array is shown to be a simple tool to locate aerodynamic sound sources on a horizontal axis wind turbine. This paper discusses the capabilities and limitations of a linear microphone array to locate ...
    • Optimización de los parámetros para la determinación experimental de la receptancia a partir de una excitación armónica con barrido logarítmico en frecuencia 

      Reina, Salvatore; Arcos Villamarín, Robert; Romeu Garbí, Jordi; Clot Razquin, Arnau (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      La identificación de los parámetros modales tales como el factor de amortiguamiento y las frecuencias naturales de los sistemas mecánicos requieren de ensayos experimentales acurados. El objetivo del estudio analítico y ...
    • Optimization of dynamic vibration absorbers placed on the tunnel interior surface to mitigate underground railway-induced vibration 

      Noori, Beshshad; Cubría, Victor; Arcos Villamarín, Robert; Clot Razquin, Arnau; Romeu Garbí, Jordi (Sociedade Portuguesa de Acústica, 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the present study, dynamic vibration absorber (DVA) has been introduced as an innovative countermeasure in the field of railway-induced vibration. The Pipe-in-Pipe (PiP) model and Green's functions for a two-and-a-half ...
    • Optimization of the active control of turboprop cabin noise 

      Romeu Garbí, Jordi; Palacios, J.; Balastegui Manso, Andreu; Pàmies Gómez, Teresa (2015-09-01)
      Article
      Accés obert
    • Plan de acción contra el ruido de actividades de ocio al aire libre 

      Jiménez Diaz, Santiago; Romeu Garbí, Jordi; Balastegui Manso, Andreu; Vega Carrera, Carlos (Universidad Austral de Chile. Instituto de Acústica, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In certain environments it is not possible to achieve compliance with the external noise levels. In such cases, however, normative stresses the compliance levels in the interior of the housing. The communication presents ...
    • Planes específicos para la reducción de la contaminación acústica de la ciudad de Terrassa 

      Jiménez Diaz, Santiago; Romeu Garbí, Jordi; Genesca Francitorra, Meritxell; Alsina Sánchez, Antoni (2010)
      Text en actes de congrés
      Accés obert
      La Directiva 2002/49 sobre evaluación y gestión del ruido ambiental contempla la adopción de planes de acción, tomando como base los resultados de los mapas estratégicos del ruido, con vistas a prevenir y reducir el ruido ...
    • Prediction of the isolation efficiency of vibration countermeasures for a double-deck tunnel 

      Clot Razquin, Arnau; Arcos Villamarín, Robert; Romeu Garbí, Jordi; Noori, Beshshad (Sociedade Portuguesa de Acústica, 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Double-deck tunnels are an innovative tunnel design that has been recently implemented in some underground railways and metro lines worldwide. However, due to the complexity of this type of structures, its dynamic response ...
    • Proper location of the transducers for an active noise barrier 

      Sohrabi, Shahin; Pàmies Gómez, Teresa; Romeu Garbí, Jordi (SAGE PUBLICATIONS INC, 2022-04-15)
      Article
      Accés obert
      The main intention of this study is to propose general criteria for the locations of the control sources and error microphones that improve the performance of the active noise barrier. Based on the proposed criteria of ...
    • Recreation noise in acoustic mapping 

      Romeu Garbí, Jordi; Jiménez Diaz, Santiago; Genesca Francitorra, Meritxell; Sánchez Venegas, Ángel (2010)
      Text en actes de congrés
      Accés obert
      As far as most of citizens complains are about noise coming from recreational activities, usually related with the presence of people in the street around bars, pubs, parties and other activities carried out in public ...
    • Revision of cancellation at the edge approach for active noise barrier 

      Sohrabi, Shahin; Pàmies Gómez, Teresa; Romeu Garbí, Jordi (2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In most of the investigations, the active noise barriers are configured placing both secondary sources and error sensors close to the edge of barriers, but it is unclear how far is this approach from the maximum theoretical ...
    • Seasonal, monthly and daily stratification for annual noise level estimation 

      Quintero, G.; Romeu Garbí, Jordi; Balastegui Manso, Andreu (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      An analysis of temporal stratification was performed in order to improve the accuracy of the annual noise levels estimation by limiting noise sampling to certain periods of time where less variability of the noise data is ...
    • Silenci!! Arriben els caçadors de sorolls 

      Romeu Garbí, Jordi (Diari de Terrassa, 2008-06-28)
      Ressenya
      Accés obert
    • Some analytical aspects of viscoelastic Lamb’s problem for improving its numerical evaluation 

      Arcos Villamarín, Robert; Romeu Garbí, Jordi; Clot Razquin, Arnau; Genesca Francitorra, Meritxell (2013-03)
      Article
      Accés restringit per política de l'editorial
      Two analytical modifications of the original viscoelastic time-harmonic Lamb’s problem expressions are presented with the aim of improving their numerical integration efficiency. Firstly, a new change of variable in the ...
    • Statistical requirements for noise mapping based on mobile measurements using bikes 

      Quintero Pérez, Guillermo; Aumond, Pierre; Can, A.; Balastegui Manso, Andreu; Romeu Garbí, Jordi (2019-12-15)
      Article
      Accés obert
      This research presents a modeling framework that allows checking the statistical requirements for producing noise maps based on mobile measurements. First, a sound field of reference is created based on a micro-simulation ...
    • Stick-slip phenomena and acoustic emission in the Hertzian linear contact 

      Babici, Laura Mariana; Tudor, Andrei; Romeu Garbí, Jordi (Multidisciplinary Digital Publishing Institute, 2022-09-22)
      Article
      Accés obert
      AE detection and analysis usually requires a specific, costly platform due to its particular burst nature and high-frequency content. This experimental study investigates the relationship between low-demand acoustic emission ...
    • Street classification by means of cluster categorization for the night period 

      Quintero, G.; Romeu Garbí, Jordi; Balastegui Manso, Andreu (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      For spatial stratification, the street classification by typology has been widely used. Its main principle is that streets can be grouped according to their use for accessing or connecting an urban area, which improves the ...
    • Study of the validity of a rectangular strip track/soil coupling in railway semi-analytical prediction models 

      Ghangale, Dhananjay; Romeu Garbí, Jordi; Arcos Villamarín, Robert; Noori, Beshshad; Clot Razquin, Arnau; Cayero Becerra, Julián Francisco (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Semi-analytical prediction models for railway-induced vibration problems consider a two-dimensional track coupled with a three-dimensional soil. The semi-analytical models found in the literature assume a simplified model ...
    • Study the efficiency of dynamic vibration absorbers in minimizing vibration power flow radiated from a double-deck tunnel 

      Noori, Behshad; Clot Razquin, Arnau; Arcos Villamarín, Robert; Romeu Garbí, Jordi (Deutsche Gesellschaft für Akustik e.V. (DEGA), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In recent years, underground train-induced ground-borne vibrations have become an important issue in heavily populated areas. As they cause not only the material failure but also serious human health problems, various ...
    • Suitability of Active Noise Barriers for Construction Sites 

      Sohrabi, Shahin; Pàmies Gómez, Teresa; Romeu Garbí, Jordi (2020-09-04)
      Article
      Accés obert
      Barriers are increasingly used to protect the pedestrian and neighboring buildings from construction noise activities. This study aims to investigate the suitability of applying active noise control on barriers in a ...