17 documents found, page 1 of 2
Effects of mild running on substantia nigra during early neurodegeneration.
Almeida, M. F.; Silva, C. M.; Chaves, R. S.; Lima, N. C.; Almeida, R. S.; Melo, K. P.; Demasi, M.; Fernandes, T.; Oliveira, E. M.; Netto, L. E.Made available in DSpace on 2019-09-12T16:57:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2017; [Almeida, M. F.; Silva, C. M.; Chaves, R. S.; Lima, N. C.; Melo, K. P.; Netto, L. E.; Ferrari, M. F.] Univ Sao Paulo, Inst Biociencias, Sao Paulo, Brazil; [Almeida, R. S.] Universidade de Taubaté (Unitau); [Demasi, M.] Butantan Inst, Sao Paulo, Brazil; [Fernandes, T.; Oliveira, E. M.] Univ Sao Paulo, Sch Phys...
Nanoclays dispersion in a PA6/PP blend by twin screw compounding
Covas, J. A.; Almeida, M. F.; Machado, A. V.; Larocca, N. M.; Pessan, L. A.A modified PP and an organoclay (Cloisite C15A, a montmorillonite modified with alkyl ammonium) were incorporated in a PA/PP 70/30 w/w blend by means of twin-screw melt compounding. The dispersion of the nanoclay into the polymer matrix and its eventual compatibilization effect were investigated by collecting samples along the barrel and characterizing them by X-ray diffraction (XRD), oscillatory rheometry, sca...
Dispersion mechanisms of nanoclays in a polymer matrix by electron microscopy
Machado, A. V.; Almeida, M. F.; Larocca, N. M.; Pessan, L. A.This work investigates the dispersion of nanoclays in polymer/montmorillonite (MMT) nanocomposites. Nanocomposites were prepared in a twin screw extruder and the collected samples were analyzed by SEM and TEM. It was possible to study the dispersion of the nanoclays and moreover understand its effect as compatibilizer.
Argamassas de cimento portland com incorporação de <<óxido secundário>> aluminí...
Pereira, D. A.; Aguiar, J. L. Barroso de; Castro, F.; Almeida, M. F.; Labrincha, J. A.O objectivo principal deste trabalho prende-se com o estudo da possibilidade de reutilizar «óxido secundário» resultante do tratamento de reciclagem de escória salina, como matéria-prima a adicionar as argamassas de cimento Portland.. O comportamento da escória à lixiviação aquosa , a análise química da solução, do soluto e das várias fracções resultantes da separação granulométrica dos óxidos lixiviados por es...
Porto 1990/2000: Evaluation of environmental burdens from MSW management using ...
Xará, Susana; Almeida, M. F.; Silva, M.; Costa, C.The environmental burdens to air and water resulting from the MSW management practices in the municipality of Porto were evaluated for 1990 and 2000 using the model developed by White et al (White et al, 1995). The operations considered in the study are collection, sorting, biological treatment, thermal treatment and landfilling. Savings from energy and recycling of recovered materials are also quantified. For ...
Inertização de resíduos industriais de alumínio em materiais cerâmicos refractá...
Pereira, D. A.; Labrincha, J. A.; Couto, D. M.; Castro, F.; Almeida, M. F.Estudou-se a incorporação de escórias salinas de alumínio e lamas galvânicas de anodização de alumínio, como matéria prima para a fabricação de materiais refractários.
Life cycle inventory analysis of spent alkaline batteries treatment
Xará, S. M.; Almeida, M. F.; Silva, M.; Costa, C. A. V.
The effect on the GHG emissions and energy consumption of MSW management practi...
Xará, S.; Almeida, M. F.; Silva, M.; Costa, C.The present case study was developed for the municipality of Porto, the second largest city of Portugal that has near 300 000 inhabitants. Due to legislative evolution, some changes have been implemented on MSW management practices since 1990 leading to meaningful improvements on energy consumption and greenhouse gases emissions. Two situations were compared: (i) the first one concerns the situation in 1990 whe...
A aplicação da análise do ciclo de vida no planeamento da gestão integrada de r...
Xará, S.; Silva, M.; Almeida, M. F.; Costa, C.
Preliminary inventory of alkaline batteries incineration
Xará, S.; Almeida, M. F.; Silva, M.; Costa, C.