Search Results - "Rasteiro, M.G"

Toxicity of organic and inorganic nanoparticles to four species of white-rot fungi by Galindo, T.P.S., Pereira, R., Freitas, A.C., Santos-Rocha, T.A.P., Rasteiro, M.G., Antunes, F., Rodrigues, D., Soares, A.M.V.M., Gonçalves, F., Duarte, A.C., Lopes, I.

“…The rapid development of nanoparticles (NP) for industrial applications and large-volume manufacturing, with its subsequent release into the environment,…”
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The use of LDS as a tool to evaluate flocculation mechanisms by Rasteiro, M.G., Garcia, F.A.P., Ferreira, P., Blanco, A., Negro, C., Antunes, E.

“…Flocculation studies of precipitated calcium carbonate induced by cationic polyacrylamides (C-PAMs) were carried out using light diffraction scattering (LDS)…”
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Screening evaluation of the ecotoxicity and genotoxicity of soils contaminated with organic and inorganic nanoparticles: The role of ageing by Pereira, R., Rocha-Santos, T.A.P., Antunes, F.E., Rasteiro, M.G., Ribeiro, R., Gonçalves, F., Soares, A.M.V.M., Lopes, I.

“…► In general ageing decreases toxicity/genotoxicity of soil spiked with aqueous suspensions of NMs. ► Ageing may promote degradation of organic shells of…”
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Biochemical and metabolic effects of a short-term exposure to nanoparticles of titanium silicate in tadpoles of Pelophylax perezi (Seoane) by Salvaterra, T., Alves, M.G., Domingues, I., Pereira, R., Rasteiro, M.G., Carvalho, R.A., Soares, A.M.V.M., Lopes, I.

“…This study aimed to evaluate sublethal effects of a short-term exposure (96h) to titanium silicate nanoparticles (TiSiO4-NP) on Pelophylax perezi tadpoles…”
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PVC paste rheology: Study of process dependencies by Rasteiro, M.G, Tomás, A, Ferreira, L, Figueiredo, S

“…A plastisol is a dispersion (suspension) of fine particles of poly(vinyl chloride) with a plasticizer that is normally applied over a substrate, by spreading…”
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Solution viscosity and flocculation characteristics of linear polymeric flocculants in various media by Chimamkpam, T.O., Rasteiro, M.G., Garcia, F.A.P., Antunes, E., Ferreira, P., Hunkeler, D., Wandrey, C.

“…▶ Rheological characterization of a new set of cationic copolymers of acrylamide (AM and Q9) differing in molar mass and ratio Q9/AM. ▶ Water characteristics…”
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Epoxy/steel fiber composites-A simple model to predict the fiber sedimentation by Leite, J.L., Rasteiro, M.G., Salmoria, G.V., Ahrens, C.H., Pouzada, A.S.

“…Sedimentation of short steel fibers (SSFs) is an important phenomenon observed in the manufacture by casting of polymer/metal composites. Modeling of the fiber…”
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Describing the flocculation of PCC particles using population balance modelling approaches by Seghir, S., Hasseine, A., Rasteiro, M.G.

“…Two different approaches for a two dimensional population balance modeling strategy are used and compared in this work to describe the flocculation of PCC…”
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Tuning rheology and aggregation behaviour of TEMPO-oxidised cellulose nanofibrils aqueous suspensions by addition of different acids by Alves, L., Ferraz, E., Lourenço, A.F., Ferreira, P.J., Rasteiro, M.G., Gamelas, J.A.F.

“…•Charged cellulose nanofibrils suspensions form strong gels at low consistency.•Rheology and aggregation of charged cellulose nanofibrils change with pH…”
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Production of nanocellulose gels and films from invasive tree species by Almeida, R.O., Ramos, A., Alves, L., Potsi, E., Ferreira, P.J.T., Carvalho, M.G.V.S., Rasteiro, M.G., Gamelas, J.A.F.

“…Wood from invasive tree species Acacia dealbata and Ailanthus altissima was used to produce high value-added nanocellulose. Firstly, bleached pulps were…”
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Characterization of solid–liquid settling suspensions using Electrical Impedance Tomography: A comparison between numerical, experimental and visual information by Silva, R., Faia, P.M., Garcia, F.A.P., Rasteiro, M.G.

“…[Display omitted] •Experimental EIT concentrations profiling is proposed for solid–liquid flows.•Data is compared between EIT and a Sampling Probe as well as…”
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Impact of organic nano-vesicles in soil: The case of sodium dodecyl sulphate/didodecyl dimethylammonium bromide by Gavina, A., Bouguerra, S., Lopes, I., Marques, C.R., Rasteiro, M.G., Antunes, F., Rocha-Santos, T., Pereira, R.

“…Aiming at contributing new insights into the effects of nanomaterials (NMs) in the terrestrial ecosystem, this study evaluated the impacts of organic…”
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Evaluation of the Flocculation and Reflocculation Performance of a System with Calcium Carbonate, Cationic Acrylamide Co-polymers, and Bentonite Microparticles by Antunes, E, Garcia, F. A. P, Blanco, A, Negro, C, Rasteiro, M. G

“…Flocculation, flocs resistance, and reflocculation capacity of a precipitated calcium carbonate (PCC) suspension with cationic polyacrylamides (C-PAMs) varying…”
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The effects of acrylamide polyelectrolytes on aquatic organisms: Relating toxicity to chain architecture by Costa, R., Pereira, J.L., Gomes, J., Gonçalves, F., Hunkeler, D., Rasteiro, M.G.

“…•The effects of polyelectrolytes on aquatic biota depend on chain architecture.•Branched polymers are less toxic due to lower coverage of the biological…”
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Assessing the ecotoxicity of metal nano-oxides with potential for wastewater treatment by Nogueira, V., Lopes, I., Rocha-Santos, T. A. P., Rasteiro, M. G., Abrantes, N., Gonçalves, F., Soares, A. M. V. M., Duarte, A. C., Pereira, R.

“…The rapid development of nanotechnology and the increasing use of nanomaterials (NMs) raise concern about their fate and potential effects in the environment,…”
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Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation by Antunes, E., Garcia, F.A.P., Ferreira, P., Blanco, A., Negro, C., Rasteiro, M.G.

“…A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of…”
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Crystalline phase characterization of glass-ceramic glazes by Rasteiro, M.G., Gassman, Tiago, Santos, R., Antunes, E.

“…The firing process of five raw crystalline frits was investigated by means of DTA, XRD, heating microscopy and dilatometry. The chemical composition of the…”
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Validating dilute settling suspensions numerical data through MRI, UVP and EIT measurements by Silva, R., Garcia, F.A.P., Faia, P.M., Krochak, Paul, Söderberg, Daniel, Lundell, Fredrik, Rasteiro, M.G.

“…The measurement of fluid dynamic quantities are of great interest both for extending the range of validity of current correlations to be used in equipment…”
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Oil/water flow in a horizontal pipe—dispersed flow regime by Santos, D.S., Garcia, F.A.P., Rasteiro, M.G., Faia, P.M.

“…In multiphase fluid flow, the formation of dispersed patterns, where one of the phases is completely dispersed in the other (continuous medium) is common, for…”
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Evaluation of flocs resistance and reflocculation capacity using the LDS technique by Rasteiro, M.G., Garcia, F.A.P., Ferreira, P., Blanco, A., Negro, C., Antunes, E.

“…In a previous paper we have shown the added value of using LDS to monitor flocculation. It can supply, simultaneously, information on flocs size and structure…”
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