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Mostrando ítems 1-20 de 63

  • Acelerómetros y sensores de vibración 

    Romeu Garbí, Jordi; Genesca Francitorra, Meritxell (2010-04)
    Artículo
    Acceso restringido por política de la editorial

  • Active control of aircraft fly-over sound transmission through an open window 

    Pàmies Gómez, Teresa; Romeu Garbí, Jordi; Genesca Francitorra, Meritxell; Arcos Villamarín, Robert (2014-04-13)
    Artículo
    Acceso restringido por política de la editorial
    This paper presents an experimental work on active control of sound transmission through a restricted opening bottom hinged window. The main goal of the work is to demonstrate the feasibility of the active technique to ...

  • Active control of sound transmission through an aperture in a thin wall 

    Magnusson Morer, Ingrid; Pàmies Gómez, Teresa; Romeu Garbí, Jordi (2014)
    Texto en actas de congreso
    Acceso abierto
    The reduction on sound transmission through an aperture by active means is theoretically investigated. The primary field is composed by a plane wave that arrives at a rectangular aperture placed in an infinite rigid thin ...

  • Actuaciones contra el ruido de actividades de ocio 

    Jiménez Diaz, Santiago; Romeu Garbí, Jordi; Pàmies Gómez, Teresa
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    In many cities can be found areas where there is a high concentration of local leisure activities and evening entertainment (music bars, nightclubs, restaurants…) that develop their activity in coexistence with the residential ...

  • Agglomeration noise strategic maps in Catalonia 

    Jiménez Diaz, Santiago; Romeu Garbí, Jordi; Pàmies Gómez, Teresa; Majó, Maite (2010)
    Texto en actas de congreso
    Acceso abierto
    The Directive 2002/49 on evaluation and management of the environmental noise demands in case of agglomerations, a series of information that one must communicate to the Commission, between which there is the number of ...

  • A ground-borne vibration assessment model for rail systems at-grade 

    Cardona, J.; Romeu Garbí, Jordi; Arcos Villamarín, Robert; Balastegui Manso, Andreu (2010)
    Texto en actas de congreso
    Acceso abierto
    Due to the increasing number and kilometres of new railways lines, either high speed railway lines or commuter lines, as well as the increasing in human sensitivity versus ground-borne vibration generated for this mean of ...

  • Aircraft localization using a passive acoustic method. Experimental test 

    Martín Román, Sara-Regina; Genesca Francitorra, Meritxell; Romeu Garbí, Jordi; Clot Razquin, Arnau (2016-01)
    Artículo
    Acceso abierto
    A passive acoustic method for aircraft localization is experimentally tested in this paper. The method relies on the Doppler effect influencing the signals received by a mesh of microphones distributed over the acoustic ...

  • Aircraft noise-monitoring according to ISO 20906: evaluation of uncertainty derived from the human factors affecting event detection 

    Asensio, Alberto; Ausejo, Miguel; Kambrosic, Kristian; Kang, Jiang; Moschioni, Giovanni; Pagán, R.; Pavón, I.; Romeu Garbí, Jordi; Trujillo, J. A.; Vigano, Giacomo; Ruiz Delgado, Manuel; Recuero López, Manuel (2012)
    Artículo
    Acceso restringido por política de la editorial
    One of the most important issues in aircraft noise monitoring systems is the correct detection and marking of aircraft sound events through their measurement profiles, as this influences the reported results. In the recent ...

  • Aircraft tracking by means of the Acoustical Doppler Effect 

    Martín Román, Sara-Regina; Genesca Francitorra, Meritxell; Romeu Garbí, Jordi; Pàmies Gómez, Teresa (2013-07)
    Artículo
    Acceso restringido por política de la editorial
    The present paper presents a passive acoustic method for aircraft tracking. The Acoustical Doppler Effect, characteristic of signals received by a mesh of spatially distributed microphones is the basis of the method. A ...

  • A low-cost noise measurement device for noise mapping based on mobile sampling 

    Quintero Pérez, Guillermo; Balastegui Manso, Andreu; Romeu Garbí, Jordi (2019-12-01)
    Artículo
    Acceso restringido por política de la editorial
    For the production of representative noise maps, a large amount of information is necessary, which includes, among others, on-site measurements of environmental noise. Thus, mobile sampling emerges as a possible solution ...

  • A measurement method to discriminate aircraft fly-over noise 

    Genesca Francitorra, Meritxell; Romeu Garbí, Jordi; Pàmies Gómez, Teresa (2010)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    Currently aircraft noise monitoring systems use a mesh of single microphones distributed around an airport to continuously sample the noise level. This fact requires a manual process of aircraft noise event detection and ...

  • A method based on 3D stiffness matrices in Cartesian coordinates for computation of 2.5D elastodynamic Green's functions of layered half-spaces 

    Noori, Behshad; Arcos Villamarín, Robert; Clot, Arnau; Romeu Garbí, Jordi (Elsevier, 2018-11-01)
    Artículo
    Acceso restringido por política de la editorial
    This article elaborates on an extension to the classical stiffness matrix method to obtain the Green's functions for two-and-a-half dimensional (2.5D) elastodynamic problems in homogeneous and horizontally layered half-spaces. ...

  • Analysis of fracture resistance of tool steels by means of acoustic emission 

    Martínez González, Eva; Picas Anfruns, Ingrid; Casellas Padró, Daniel; Romeu Garbí, Jordi (2010-12-10)
    Artículo
    Acceso restringido por política de la editorial
    The automotive manufacturers currently use advanced high-strength steels (AHSS) to produce lightweight vehicles with increased safety performance. While showing excellent strengthto-weight ratios, AHSS have several limitations ...

  • Analysis of fracture resistance of tool steels by means of acoustic emission. 

    Martínez González, Eva; Picas Anfruns, Ingrid; Casellas Padró, Daniel; Romeu Garbí, Jordi (2010)
    Texto en actas de congreso
    Acceso abierto
    The usage of advanced high strength steels (AHSS) in structural automotive components has been broadened in the past few years to satisfy the strict specifications of the automotive industry. Besides showing excellent ...

  • Analytical simulations on active control of sound transmission through an aperture in a rectangular enclosure 

    Pàmies Gómez, Teresa; Romeu Garbí, Jordi; Arcos Villamarín, Robert; Martín Román, Sara-Regina (2014-03-01)
    Artículo
    Acceso restringido por política de la editorial
    This paper uses an analytical model of sound transmission through an aperture for the study of the performance of an active control of sound inside the enclosure to prevent the transmission of sound through an aperture ...

  • An energy flow study of a double-deck tunnel under quasi-static and harmonic excitations 

    Clot Razquin, Arnau; Romeu Garbí, Jordi; Arcos Villamarín, Robert (2016-10)
    Artículo
    Acceso abierto
    This paper presents a comparison between the vibration energy flow radiated by a double-deck tunnel and the one radiated by a simple tunnel when both are excited by constant or by harmonic moving loads. For both cases, the ...

  • Annual traffic noise levels estimation based on temporal stratification 

    Quintero, G.; Balastegui Manso, Andreu; Romeu Garbí, Jordi (2017-10-19)
    Artículo
    Acceso abierto
    This paper proposes a temporal sampling strategy that increases the accuracy of long-term noise level estimation and allows to establish the estimation error according to the number of sampled days. Days of the week are ...

  • A power flow analysis of a double-deck circular tunnel embedded in a full-space 

    Clot Razquin, Arnau; Romeu Garbí, Jordi; Arcos Villamarín, Robert; Martín Román, Sara-Regina (2014-02)
    Artículo
    Acceso restringido por política de la editorial
    The purpose of the present investigation is to obtain the mean power flow radiated by a double-deck circular tunnel and compares it to the one radiated by a simple circular tunnel. To achieve this, a harmonic line load is ...

  • Application of dynamic vibration absorbers on a double-deck circular railway tunnel to minimize the radiated vibration energy flow induced by a moving load 

    Noori, Beshshad; Clot Razquin, Arnau; Arcos Villamarín, Robert; Romeu Garbí, Jordi (2017)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    The aim of this study is to investigate the efficiency of Dynamic Vibration Absorbers (DVAs) as a vibration abatement solution for railway-induced vibrations in the framework of a double-deck circular railway tunnel ...

  • Assessment of environmental noise and its effect on neonates in a Neonatal Intensive Care Unit 

    Romeu Garbí, Jordi; Cotrina, Laura; Perapoch, Josep; Linés, Marcos (2016-10-01)
    Artículo
    Acceso abierto
    A method for analyzing the influence of noise on newborns is proposed. The method consists of defining three different types of time interval (quiet, noisy and nursing) and, for each period, environmental noise levels, ...