Encontrados 11 documentos, a visualizar página 1 de 2

Integrated Ocean Drilling Program Expedition 339 Preliminary Report : Mediterra...

Onset, evolution and effects of the Mediterranean Outflow : an overview of IODP...

Contributo da petrografia para o conhecimento da causa do aumento das emissões ...

NOx emissions and unburnt carbon may suddenly increase in a thermoelectric power plant, without major chemical change in the feed coal. One way of investigate these situations is the petrographic analysis of the feeds and ashes, and the information integration. Three situations are presented in this study where coal contamination, fines, and maceral composition were, or may be, the cause for increase in NOx emi...

Impacte ambiental da Central Termoeléctrica do Pego, na perspectiva de alunos d...

The environmental impact of the Pego Power Plant, which produces energy using coal as fuel, is the subject of this study using a group of 25 students from 8th grade. This study showed that the School plays a key role in information and dissemination/awareness, presenting a major role in the development of skills in the Environmental Education area

Petrografia e geoquímica orgânica das escombreiras de carvão da Bacia Carbonífe...

The coal waste piles that result from Douro Coalfield exploitation represent one of the most significant environmental impacts caused by mining activities. The aim of this work is the petrographic and geochemical characterization of the organic fraction of fifteen coal waste piles, to identify and understand potential impacts on the environment. The data point to the existence of oxidation, acid drainage and co...

Estudo comparativo dos produtos da combustão natural e industrial dos carvões d...

The coal waste piles and fly ash piles that resulted from the combustion of the coal represent one of the most significant environmental impacts caused by exploitation and utilization of coal from Douro Coalfield. The organic petrography and geochemistry studies indicate the existence of similar petrographic features in samples and the occurrence of high combustion temperatures in coal waste piles. There is a s...

Contributos dos webfólios para a formação inicial de professores de Biologia e ...

This work shows an experience that began in September 2009 under Supervised Teaching Practice (PES) and aims the creation of a reflective portfolio foreseen in the IPP regulation. With the construction of this portfolio is intended to go beyond the PES student’s evaluation and reflect on how this instrument contributes to the personal and professional development of the stakeholders (trainees and trainers...

Variations in fly ash composition with sampling location: Case study from a por...

Osteossíntese de úmero em pombos domésticos (Columba livia) associando-se pinos...

Foram utilizadas 28 aves adultas, separadas aleatoriamente em quatro grupos. Os pombos foram anestesiados com isoflurano para a realização da osteotomia diafisária transversa do úmero direito. No grupo I, a osteossíntese foi realizada associando-se dois pinos de Kirschner e polimetilmetacrilato, intramedulares; no grupo II, os pinos de Kirschner foram substituídos por pinos de Schanz; no grupo III, foram utiliz...

Inteligência emocional: um construto científico?

A inteligência emocional talvez seja o conceito psicológico mais popular do final do século XX. Rodeada mais de expectativa do que comprovação científica, a inteligência emocional não alcança, ainda, uma definição semântica e tampouco de validade psicométrica para que possamos considerá-la um tipo de inteligência. Com base em estudos recentes, o artigo apresenta uma reflexão crítica sobre a inteligência emocion...