Browsing by Issue Date, starting with "2008-09"
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- Prospecção de sulfuretos maciços no sector português da Faixa Piritosa IbéricaPublication . Matos, João Xavier; Sousa, Pedro
- O planeamento sectorial da indústria extractiva e sua importância para os instrumentos de ordenamento do território : o caso de PortugalPublication . Falé, Patrícia; Mendonça, Alexandra
- Indicadores geológicos e ambientais para o ordenamento da actividade extractiva : o caso do Anticlinal de Estremoz, PortugalPublication . Carvalho, Jorge; Falé, Patrícia
- O e-Geo: Sistema Nacional de Informação GeocientíficaPublication . Patinha, Pedro; Antunes, Cristina
- Evaluation of emerald potential of mozambican pegmatites using lithogeochemical methodsPublication . Rosa, Diogo; Dias, Manuel Bettencourt
- Baseline contents of Cr, Ni, Pb and Zn in the portuguese shelf sedimentsPublication . Mil-Homens, Mário; Stevens, R. L.; Cato, Ingemar; Abrantes, Fátima
- Pb enrichments in short sediment cores collected off the Portuguese MarginPublication . Costa, Ana Novo; Mil-Homens, Mário; Lebreiro, Susana; Trancoso, Maria Ascensão; Melo, Zenaida; Mouro, Filomena; De Stigter, Henko; Boer, Win; Richter, Thomas; Van Weering, Tjeerd C. E.; Abrantes, Fátima
- Kinetics of a packed-bed bacth reactor for the treatment of olive oil wastewaters from a Portuguese millPublication . Ribeiro, Belina; Correia, Anabela; Baeta-Hall, Lina; Sàágua, M. C.; Duarte, José CardosoOlive oil production is a traditional agricultural industry in Mediterranean countries and Portugal is one of the ten major producers. This industry generates an effluent, olive mill wastewater. This effluent does not undergo any treatment and is usually stored in evaporation lagoons or spread on the land. This can have a negative impact in the environment since this effluent has a high level of organic matter leading to a high chemical oxygen demand. In addition it has also a high content of polyphenols that contributes to the ecotoxicity of this effluent.Different techniques for the treatment of these wastewaters have been studied. In this work a 60 litre vessel was filled with a packaging of plastic material consisting of a cubic geometry (Biological Carrier Media from Rauschert). The non-inoculated reactor was filled with effluent from an olive mill farm (from Alfândega da Fé, Trás-os-Montes) and the effluent was re-circulated daily for homogeneity. COD, colour, nitrogen, solids and phosphorous were measured to follow the evolution of the system. Microbial composition and polyphenols were also evaluated. As an indicator of the microbial activity in the reactor, lipase activities were measured. Ecotoxicity tests were carried out to follow the detoxification capacity of the system as well as its potential for using in the treatment of this type of agroindustrial effluent.
- Gestão de informação geocientífica no Serviço Geológico PortuguêsPublication . Laiginhas, Carlos
- Towards an interdisciplinary framework for automated negotiationPublication . Lopes, Fernando; Novais, Augusto Q.; Coelho, HelderNegotiation is an important and pervasive form of social interaction. The design of autonomous negotiating agents involves the consideration of insights from multiple relevant research areas to integrate different perspectives on negotiation. As a starting point for an interdisciplinary research effort, this paper presents a model that handles bilateral multi-issue negotiation, employs game-theoretic techniques to define equilibrium strategies for the bargaining game of alternating offers, and formalizes a set of negotiation strategies and tactics studied in the social sciences. Autonomous agents equipped with the model are currently being developed using the Jade framework. The agents are able to negotiate under both complete and incomplete information, thereby making the model in particular and the agents in general very compelling for automated negotiation
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