Encontrados 5 documentos, a visualizar página 1 de 1
Impacto do PIT na qualidade de vida de uma jovem com dificuldade intelectual e ...
Antunes, Elisabete BaptistaTrabalho de Mestrado apresentado ao Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Educação Especial – Domínio Cognitivo e Motor. ; Este estudo pretende analisar o processo de transição para a vida pós-escolar de uma jovem com Dificuldades Intelectuais e Desenvolvimentais, procurando-se compreender as estratégias de atuação do sistema educati...
Flocculation studies in papermaking
Antunes, Elisabete SimõesThe flocculation process induced by polymeric additives has been studied extensively and is well reported in the literature. However, from the point of view of the papermaking process, still few studies relate flocculation behaviour and flocs characteristics with retention, drainage and sheet formation under various process conditions and for different retention aid systems. This correlation is of great importa...
Use of New Branched Cationic Polyacrylamides to Improve Retention and Drainage ...
Antunes, Elisabete; Garcia, Fernando A. P.; Ferreira, Paulo; Blanco, Angeles; Negro, Carlos; Rasteiro, M. GraçaCationic polyacrylamides of very high molecular weight and with different charge densities and degrees of branching have been investigated as retention aids for papermaking. The effects of polymer charge density and polymer branching on drainage and retention of a suspension containing fibers and precipitated calcium carbonate have been correlated with flocs properties. Additionally, the effects of flocculant d...
Effect of Water Cationic Content on flocculation, flocs resistance and refloccu...
Antunes, Elisabete; Garcia, Fernando A. P.; Ferreira, Paulo; Blanco, Angeles; Negro, Carlos; Rasteiro, M. GraçaIn papermaking, mill water closure may result in a significant increase of inorganic salts in the white water. The effect of these contaminants on the performance of retention aids was evaluated, in this study, through flocculation of Precipitated Calcium Carbonate (PCC) with three very high molecular weight cationic polyacrylamides (C-PAM) of medium charge density and with different degrees of branching. Furth...
Prevalência das queixas de insónia nos doentes que recorrem às consultas de clí...
Antunes, Elisabete Simões, 1976-Tese de mestrado em Medicina do Sono, apresentada à Faculdade de Medicina da Universidade de Lisboa, 2008
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||