41 documents found, page 1 of 5

Weather ageing effects on the long-term thermal conductivity and biological col...

The use of thermal insulation materials in the opaque walls is one of the best strategies toward the improvement of the thermal performance of the building envelope, thereby contributing to increase the energy efficiency of the built environment. In this context, an increasing number of studies are focusing on the development of mortars with enhanced thermal performance, i.e., thermal insulating mortars. Howeve...

Tectónica de placas amolecidas (soft): Homenagem ao Professor Pinto Peixoto

The Arraiolos – Portugal – Moderate-Sized 2018 (M = 4.9) earthquake of January ...

On 15 January 2018 at 11:51 UTC, an earthquake of 4.9 ML occurred in the Northeast of Arraiolos region near Aldeia da Serra village. The hypocentral location, determined by Instituto Português do Mar e da Atmosfera (IPMA), has coordinates 38.79 N, 7.93 W at 11 km depth. The focal mechanisms determined by P-wave first motion polarities and waveforms inversion indicate a dominance of strike-slip events with nodal...

Anomalies detection in adhesive wall tiling systems by infrared thermography

Adherent tiling systems are widely used all over the world as wall cladding because of their aesthetic and technical characteristics. However, anomalous behaviours often occur; compromising the overall behaviour of facades, and possibly raising safety risks. The need to create expeditious, non-destructive and accurate methods of inspection that can encourage these systems’ inspection and maintenance fomented a ...

Crustal seismic structure beneath Portugal and southern Galicia (Western Iberia...

The crustal structure in Western Iberia, is the result of a complex geodynamic history. Most of the surface is covered by rocks dating to the Variscan orogeny, the coastal ranges dominated by Mesozoic structures and Mesocenozoic basins covering partially the mainland. In this study we present the results of a local earthquake tomographic study, performed to image in depth this complex crustal structure down to ...

Crustal structure of the Eurasia-Africa plate boundary across the Gloria Fault,...

The oceanic crustal and uppermost lithospheric mantle structure across the Gloria Fault (GF) transcurrent plate boundary between Africa and Eurasia in the Northeast Atlantic is investigated based on seismic reflection, seismic refraction and wide-angle reflection data. This experiment used 18 ocean bottom stations along an N-S 150 km long traverse together with acquisition of a multichannel seismic reflection p...

Deteção de anomalias em revestimentos de ladrilhos por termografia de infraverm...

O revestimento de fachadas de edifícios com ladrilhos é uma técnica bastante usada em todo mundo. Apesar de bastante comum, principalmente devido às suas características estéticas, este tipo de revestimento tem uma aplicação complexa, dado o elevado número de componentes. Esta complexidade pode resultar em diversas anomalias, como é o caso do destacamento, a anomalia mais comum e mais gravosa neste tipo de reve...

Anomaly diagnosis in ceramic claddings by thermography - A review

With the increasing importance given to building rehabilitation comes the need to create simple, fast and non-destructive testing methods (NDT) to identify problems and for anomaly diagnosis. Ceramic tiles are one of the most typical kinds of exterior wall cladding in several countries; the earliest known examples are Egyptian dating from 4000 BC. This type of building facade coating, though being quite often u...

Developing an Event-Tree Probabilistic Tsunami Inundation Model for NE Atlantic...

This study constitutes a preliminary assessment of probabilistic tsunami inundation in the NE Atlantic region. We developed an event-tree approach to calculate the likelihood of tsunami flood occurrence and exceedance of a specific near-shore wave height for a given exposure time. Only tsunamis of tectonic origin are considered here, taking into account local, regional, and far-field sources. The approach used ...

Educating for earthquake science and risk in a tectonically slowly deforming re...

Over the past decade, scientists have been called to participate more actively in public education and outreach (E&O). This is particularly true in fields of significant societal impact, such as earthquake science. Local earthquake risk culture plays a role in the way that the public engages in educational efforts. In this article, we describe an adapted E&O program for earthquake science and risk. The program ...