Artigos de Revista

Os sectores da indústria cerâmica e da construção contribuem de forma significativa para a economia portuguesa. No entanto, são uma ameaça para o meio ambiente face ao elevado montante de subprodutos e resíduos por eles gerado, à consequente deposição em aterro, ao desperdício energético e à agressão causada pela exploração de matérias-primas que, embora existam ainda em quantidade e qualidade, são recursos esgotáveis.

Work undertaken in the EU HUMOR project on morphodynamical modelling, particularly with regard to simulating and understandingrhythmic surf zone bars and related morphodynamic self-organization, is presented. These features are reviewed and their engineering contextstated. Hydrodynamical and morphodynamical models developed and/or applied within the HUMOR project in order to address these issues arebriefly presented. The linear stability modelling concept and stability studies using fully nonlinear models are contrasted. The stability of a shoreparallelbar under normal or oblique wave incidence is chosen as a test case for the different models. The results are compared and discussed.Lastly, modelling efforts and main results from the project are summarized. Recommendations for further work are made.

This study aims at showing the sedimentary and geomorphological records of wave climate variations by spits. The studied spit (Arçay Spit) is located on the French Atlantic coast and has displayed a rapid elongationsince the beginning of the 19th century that potentially represents a two century-long wave climate record.Wave climate and spit growth relationships are studied from two complementary methods: (1) numerical modelling of wave and longshore transport temporal and spatial variabilities, and (2) morphologicalmonitoring based on the analysis of 4 historical maps (1811

N/A

Stone masonry in historical buildings. Ways to increase their resistance and durability

Digital preservation aims at maintaining digital objects anddata accessible over long periods of time. Data grids provide severalfunctionalities required by digital preservation systems, especially whenmassive amounts of data must be preserved, as in e-Science domains. Wepropose the use of existing data grid solutions to build frameworks fordigital preservation. In this paper we survey the main threats to digitalpreservation, which are used to identify a central point of failure in themetadata catalog of the iRODS data grid solution. We propose threeextensions to the iRODS framework, to overcome the shortcomings ofiRODS when used as a digital preservation system.

N/A

N/A

N/A

N/A