Ponències/Comunicacions de congressos
Enviaments recents
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The state of art of terahertz sources: a communication perspective at a glance
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Comunicació de congrés
Accés restringit per política de l'editorialTerahertz band lying between infrared and microwave is a very promising part of electromagnetic spectrum for spectroscopy, space applications and different kind of imaging applications such as medical and security. Recently, ... -
Numerical study of an active noise barrier
(2017)
Comunicació de congrés
Accés restringit per política de l'editorialA numerical study was performed to find the best position for error sensors and secondary sources of an active noise barrier. In this paper, a numerical study has been done, using MacDonald's solution, to calculate diffracted ... -
Dynamic representation of excitation sources on construction-induced vibration problems based on multiple harmonic loads applied on the ground
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialConstruction machinery used in public works is a source of noise and vibration that generate annoyance to the surrounding residential buildings. Thus, prediction of noise and vibration levels that will be induced by these ... -
Seasonal, monthly and daily stratification for annual noise level estimation
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialAn 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 ... -
Application of dynamic vibration absorbers on a double-deck circular railway tunnel to minimize the radiated vibration energy flow induced by a moving load
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe 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 ... -
Control activo de transmisión de ruido causado por sobrevuelo de aeronaves transmitido por una apertura en fachada
(Sociedad Española de Acústica (SEA), 2013)
Text en actes de congrés
Accés obertThis paper presents an experimental study based on the active control of sound transmission through narrow opening of a casament window below. The main objective of the paper is to demostrate the feasibility of the ... -
Mapa acústico en zona acústica de régimen especial (ZARE) formada por actividades de ocio
(Sociedad Española de Acústica (SEA), 2013)
Text en actes de congrés
Accés obertLa Ley autonómica 16/2002 de protección contra la contaminación acústica permite la creación de zonas en las que, debido a las actividades que allí se desarrollan, se pueden superar los límites establecidos para el uso ... -
Study the efficiency of dynamic vibration absorbers in minimizing vibration power flow radiated from a double-deck tunnel
(Deutsche Gesellschaft für Akustik e.V. (DEGA), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialIn 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 ... -
Optimization of dynamic vibration absorbers placed on the tunnel interior surface to mitigate underground railway-induced vibration
(Sociedade Portuguesa de Acústica, 2016)
Text en actes de congrés
Accés restringit per política de l'editorialIn 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 ... -
Prediction of the isolation efficiency of vibration countermeasures for a double-deck tunnel
(Sociedade Portuguesa de Acústica, 2016)
Text en actes de congrés
Accés restringit per política de l'editorialDouble-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 ... -
Methodology for the experimental evaluation of frequency response functions in the frame of railway-induced or construction-induced groundbourne vibration
(Sociedade Portuguesa de Acústica, 2016)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a methodology for the experimental evaluation of mechanical vibration frequency response functions in the framework of groundbourne railway-induced and construction-induced vibration predictions is presented. ... -
Active control of sound transmission through an aperture in a thin wall
(2014)
Text en actes de congrés
Accés obertThe 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 ...
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