Civil and Structural Engineering, Building and Construction, Environmental Engineering, Acoustics and Ultrasonics
57
Scopus Publications
Scopus Publications
Acoustic characterization of the Municipal Museum Abade Pedrosa 53rd International Congress and Exposition on Noise Control Engineering Internoise 2024, 2024
Roof Replacement of a Heritage Building Using Transparent Solutions: Room Acoustic Performance Comparison Macieira Mónica, Paulo Mendonça, João Miranda Guedes, António P. O. Carvalho International Journal of Architectural Heritage, 2022 Tensile membrane roofs are considered to have the potential to improve the buildings’ performance due to their lightweight and flexible nature. However, their potential for improving acoustic behaviour has hardly been accurately gauged or demonstrated due to their complexity in both geometric and physical aspects. To address this issue, Carmo’s church in Lisbon—a heritage building that lost the roof during the 1755 earthquake and is nowadays a museum—was selected as case study to analyse the impact of covering high complex volumes in room acoustics by using a conventional and an alternative transparent solution: (i) a single glazing and (ii) a simple and transparent ETFE membrane tensioned in a self-supporting metal structure. This last solution is combined with a retractable cross-vaulted ceiling in a translucent and acoustic absorbent membrane supported by pneumatic ribs. The acoustic performance for music and speech emission of these two options is compared to each other and to the existing scenario—without roof—through numerical modelling and by considering a set of selected parameters: Reverberation Time, Clarity, Early Decay Time, Speech Transmission Index and Definition (D50 ). These analyses allowed verifying the potential of membrane solutions to improve the acoustics of high complex volumes.
High-intensity infrasound effects on glucose metabolism in rats Gonçalo Martins Pereira, Madalena Santos, Sofia S. Pereira, Gonçalo Borrecho, Francisco Tortosa, et al. Scientific Reports, 2021 Recent focus has been given on the effects of high-intensity infrasound (HII) exposure, and whether it induces changes in pancreatic morphology and glucose metabolism is still unknown. As such, we have studied the impact of HII exposure on glucose tolerance, insulin sensitivity, pancreatic islet morphology, muscle GLUT4 and plasma insulin and corticosterone levels. Normal and glucose intolerant wild-type Wistar rats were randomly divided in two groups: one group not exposed to HII and the other continuously exposed to HII. Animals were sacrificed at three timepoints of exposure (1, 6 or 12 weeks). An intraperitoneal glucose tolerance test was performed, blood samples were collected and the pancreas and the quadriceps femoris muscle were excised. Circulating insulin and corticosterone levels were determined and pancreatic and muscular tissue were routinely processed for histochemistry and immunohistochemistry with an anti-GLUT4 antibody. Animals exposed to HII had higher corticosterone levels than animals not exposed. No differences were found on insulin concerning HII exposure or glucose intolerance. Glucose intolerant animals had pancreatic islet fibrosis and no differences were found in GLUT4 ratio concerning HII exposure. In conclusion, we found that continuous exposure to HII increases stress hormone levels without inducing glucose intolerance in rats.
Acoustically conserving the worship heritage of Nossa Senhora de Penha de França church, Goa Inter Noise 2018 47th International Congress and Exposition on Noise Control Engineering Impact of Noise Control Engineering, 2018
Acoustics of churches from Portugal and Peru when they were once the same country 19th International Congress on Sound and Vibration 2012 Icsv 2012, 2012
The acoustics of the Mekor Haim synagogue, Portugal 40th International Congress and Exposition on Noise Control Engineering 2011 Inter Noise 2011, 2011
Acoustical characterization of the underground chapels of the new Holy Trinity church in the Fatima shrine, Portugal Proceedings of Forum Acusticum, 2011
Acoustical characterization of the central mosque of Lisbon Proceedings of Forum Acusticum, 2011
Evaluation of acoustic silence, acoustic intelligibility and acoustic sacred factor in goan Catholic churches 40th International Congress and Exposition on Noise Control Engineering 2011 Inter Noise 2011, 2011
A methodology for assessing the impact of the use of road salt on groundwater resources in a mountain environment (Serra da Estrela, central Portugal) Cadernos do Laboratorio Xeoloxico De Laxe, 2011
Sound isolation provided by shading screens applied in façades 24th National Conference on Noise Control Engineering 2010 Noise Con 10 Held Jointly with the 159th Meeting of the Acoustical Society of America, 2010
Acoustical characterization of portuguese libraries 17th International Congress on Sound and Vibration 2010 Icsv 2010, 2010
Model of a benefit/cost ratio analysis for comparison of environmental noise barriers 24th National Conference on Noise Control Engineering 2010 Noise Con 10 Held Jointly with the 159th Meeting of the Acoustical Society of America, 2010
Living with high noise levels, is it sustainable? 39th International Congress on Noise Control Engineering 2010 Inter Noise 2010, 2010
Acoustic characterization of sacred music rendered by a human whistle at the Divine Providence Church in Goa, India 20th International Congress on Acoustics 2010 Ica 2010 Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society, 2010
Comparison of the acoustics of mosques and catholic churches 16th International Congress on Sound and Vibration 2009 Icsv 2009, 2009
The true cost of road traffic noise in Portugal 38th International Congress and Exposition on Noise Control Engineering 2009 Inter Noise 2009, 2009
Investment in noise reduction: A good option in Portugal? 8th European Conference on Noise Control 2009 Euronoise 2009 Proceedings of the Institute of Acoustics, 2009
Relationship between acoustic worship ambience and speech intelligibility in Goa's Bom Jesus Basilica 8th European Conference on Noise Control 2009 Euronoise 2009 Proceedings of the Institute of Acoustics, 2009
Prediction of acoustic comfort and acoustic silence in Goan Catholic churches 38th International Congress and Exposition on Noise Control Engineering 2009 Inter Noise 2009, 2009
Acoustic characterization of courtrooms by a multi-criteria Method Institute of Noise Control Engineering of the Usa 23rd National Conference on Noise Control Engineering Noise Con 08 and Sound Quality Symposium Sqs 08, 2008
Acoustic characterization of rehabilitated cloisters Proceedings European Conference on Noise Control, 2008
Action plans and municipal noise reduction plans in Portugal Turkish Acoustical Society 36th International Congress and Exhibition on Noise Control Engineering Inter Noise 2007 Istanbul, 2007
Reproducibility in interlaboratory impact sound insulation measurements 13th International Congress on Sound and Vibration 2006 Icsv 2006, 2006
Noise levels in dental schools J. C. Sampaio Fernandes, A. P. O. Carvalho, M. Gallas, P. Vaz, P. A. Matos European Journal of Dental Education, 2006
Social acoustic survey and noise mitigation solutions on a Portuguese urban highway International Congress on Noise Control Engineering 2005 Internoise 2005, 2005
Sustainability of acoustic materials and acoustic characterization of sustainable materials 12th International Congress on Sound and Vibration 2005 Icsv 2005, 2005
The new megachurch for the Sanctuary of Fátima Proceedings of the Tenth International Congress on Sound and Vibration, 2003
Expedite methodology for assessing noise levels in an urban scenario based on a new parameter: The Significant Measurement Starts (SMS) Proceedings of the Tenth International Congress on Sound and Vibration, 2003
Relationships between speech intelligibility and objective acoustical parameters or architectural features in catholic churches Proceedings National Conference on Noise Control Engineering, 1997
