Now showing items 1-8 of 8

    • A predictive model for fracture in human ribs based on in-vitro acoustic emission data 

      García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Fernández Osete, Ismael; Velázquez Ameijide, Juan; Martínez González, Eva (2021-09-01)
      Article
      Open Access
      Purpose The aim of this paper is to propose a fracture model for human ribs based on acoustic emission (AE) data. The accumulation of microcracking until a macroscopic crack is produced can be monitored by AE. The ...
    • Análisis de fractura de costilla humana mediante datos de emisión acústica 

      Pérez Serrano, Víctor Manuel (Universitat Politècnica de Catalunya, 2021-07-02)
      Bachelor thesis
      Open Access
      En aquest projecte final de grau s'estudia i analitza el trencament de la costella humana a partir de la implementació de la tècnica d'emissió acústica; un assaig no destructiu que detecta l'energia elàstica alliberada en ...
    • Caracterización acústica de mezclas bituminosas con polvo de caucho: correlación con textura 

      Paje, S.E.; Bueno, M.; Terán, F.; Miró Recasens, José Rodrigo; Pérez Jiménez, Félix Edmundo; Martínez Reguero, Adriana Haydée (2009-11)
      Conference report
      Open Access
      El objeto de este trabajo ha sido caracterizar el comportamiento acústico in situ de mezclas bituminosas que contienen polvo de caucho procedente de neumáticos fuera de uso incorporadas por diferentes métodos. Las mezclas ...
    • Combination of acoustic emission and vibratory measure-ments to characterize an ultrasonic vibration assisted ball burnishing tool for a lathe 

      Fernández Osete, Ismael; Estévez Urra, Aida; Velázquez Corral, Eric; Valentín Ruiz, David; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodriguez, Jose Antonio (2021-07-14)
      Article
      Open Access
      In this paper, a resonant system that produces a movement of low amplitude and ultrasonic frequency is used to achieve the vibration assistance in a ball-burnishing process. A full vibration characterization of this process ...
    • Etude pour la mise au point de l'Emission Acoustique en ambiance cryogénique 

      Laguna Salvado, Laura (Universitat Politècnica de Catalunya, 2010-03-31)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Monitoring species in artificial reefs using acoustic communications 

      Sbragaglia, Valerio; Sarriá Gandul, David; Molino Minero, Erik; Manuel Lázaro, Antonio; Garcia Benadí, Albert; Rotllant Estelrich, Guiomar; Gisbert Casas, Enric; Sardà Amills, Francesc; Aguzzi, Jacopo (2011)
      Conference report
      Open Access
      The purpose of this work is to study and evaluate the limitations of using acoustic communications in the vicinity of artificial reefs. By placing hydrophones and transmitters in different strategic locations we have ...
    • Monitoring species using acoustic communications 

      Sarriá Gandul, David; Molino Minero, Erik; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio; Sardà Amills, Francesc; Aguzzi, Jacopo; Rotllant Estelrich, Guiomar (Institute of Electrical and Electronics Engineers, 2011)
      Conference report
      Restricted access - publisher's policy
      On this paper a description of a monitoring system for marine speciesbased on acoustic hydrophones and transmitters is presented. The main purpose of the work is to test the performance of these instruments working in ...
    • New siren tones optimised for increased detectability distances of emergency vehicles 

      Balastegui Manso, Andreu; Romeu Garbí, Jordi; Clot Razquin, Arnau; Martín Román, Sara-Regina (2013-06)
      Article
      Open Access
      Sirens from emergency vehicles are particularly annoying for people living in the vicinities of emergency centres. In order to reduce their discomfort, the present work computes the optimal output power and frequency content ...