Estimativas Globais e Mapas de Fluxo de Calor

Heat flow density determinations have been done in a large part of the surface of the planet Earth. As a consequence, new heat flow density maps and estimates of global values of heat lost through the surface of the Earth has been done. In this work, we present some problems related with this matter. In the last three decades, we have learn many things related with heat flow, but there are yet many problems without answers.

Avaliação e controlo da qualidade da água de albufeiras com base em modelos dinâmicos

A problemática relacionada com a modelação da qualidade da água de albufeiras pode ser abordada de diversos pontos de vista. Neste trabalho recorre-se a metodologias de resolução de problemas que emanam da Área Cientifica da Inteligência Artificial, assim como a ferramentas utilizadas na procura de soluções como as Árvores de Decisão, as Redes Neuronais Artificiais e a Aproximação de Vizinhanças. Actualmente os métodos de avaliação da qualidade da água são muito restritivos já que não permitem aferir a qualidade da água em tempo real. O desenvolvimento de modelos de previsão baseados em técnicas de Descoberta de Conhecimento em Bases de Dados, mostrou ser uma alternativa tendo em vista um comportamento pró-activo que pode contribuir decisivamente para diagnosticar, preservar e requalificar as albufeiras. No decurso do trabalho, foi utilizada a aprendizagem não-supervisionada tendo em vista estudar a dinâmica das albufeiras sendo descritos dois comportamentos distintos, relacionados com a época do ano. ABSTRACT: The problems related to the modelling of water quality in reservoirs can be approached from different viewpoints. This work resorts to methods of resolving problems emanating from the Scientific Area of Artificial lntelligence as well as to tools used in the search for solutions such as Decision Trees, Artificial Neural Networks and Nearest-Neighbour Method. Currently, the methods for assessing water quality are very restrictive because they do not indicate the water quality in real time. The development of forecasting models, based on techniques of Knowledge Discovery in Databases, shows to be an alternative in view of a pro-active behavior that may contribute to diagnose, maintain and requalify the water bodies. ln this work. unsupervised learning was used to study the dynamics of reservoirs, being described two distinct behaviors, related to the time of year.

GUIA PROFISSIONAL DIGITAL: MAPAS CONCEITUAIS DAS PROFISSÕES ESCOLHIDAS PELOS ALUNOS DO ENSINO MÉDIO

This report aims to present the experience lived in the project "The School Pedro II in the Professional Decision of Secondary Education Students" aimed to promote professional student choice for the preparation of secondary to higher education, technical or job market with the integration of the areas of knowledge and ICT. Starting questions: How to awaken in students a vocation for academic life? How establish the connection between what students want to be in the future and to choose when isn’t a university course? How to take into account the factors that interfere in making professional student decision to build his own knowledge about your chosen profession? The experiment was performed at the State School of Elementary and Secondary Education D. Pedro II (Belem of Para State/Brazil), based on the view that knowledge must be represented in a format that requires coordination with the different forms of knowledge and the organization and use of technology. The results show that the tasks performed by students for professional choice provided information about themselves and the professional world. The conceptual map has contributed as a mediating tool of the teaching, learning and assessment and favored interest, autonomy and participation.