Project Gutenberg
Maximilianus, Transylvanus, Pigafetta, Antonio,
... J.C. Bib. Brasiliense, 1581. Moraes, P.B. de Bib. Brasiliana (rev. and enl. ed.), 547-548. BM STC Italian, 1465-1600, 428. Book.
0000 - Gale Group | Sabin
... completed, under the leadership of the Portuguese mariner Fernão de Magalhães, the first circumnavigation of the ocean. A quarter ...
Tópico(s): Maritime Navigation and Safety
2015 - Wiley | Limnology and Oceanography Bulletin
FOUR hundred years ago, in April 1521, died Fernao de Magalhaes, more familiarly known to Englishmen as Ferdinand Magellan, ...
Tópico(s): Historical Geography and Cartography
1921 - Wiley | Geographical Journal
Book.
0000 - Gale Group | Sabin
Joana Pimenta, Carlos Gonçalves, Loic Hiliou, Jorge F. J. Coelho, Fernão D. Magalhães,
This study investigates the role of the polymeric binder on the properties and performance of an intumescent coating. Waterborne resins of different types (vinylic, acrylic, and styrene-acrylic) were incorporated in an intumescent paint formulation, and characterized extensively in terms of thermal degradation behavior, intumescence thickness, and thermal insulation. Thermal microscopy images of charred foam development provided further information on the particular performance of each type of coating ...
Tópico(s): Silicone and Siloxane Chemistry
2015 - Springer Science+Business Media | Journal of Coatings Technology and Research
Title within ornamental border. Imprint from colophon, p. [35]. Book.
0000 - Gale Group | Sabin
Artur M. Pinto, Jorge Martins, J. Agostinho Moreira, Adélio Mendes, Fernão D. Magalhães,
Abstract Graphene nanoplatelets ( GNPs ) were directly dispersed in poly(vinyl acetate) ( PVAc ) latex in concentrations from 0.05 up to 2 wt% (based on dry weight), without using additional surfactants or dispersants. Stable dispersions were obtained due to interaction of the GNPs with protective colloids (poly(vinyl alcohol) and hydroxyethylcellulose) originally present in the latex. This caused an increase in viscosity and accentuated the pseudoplastic behavior of the latex, as evidenced by rheological ...
Tópico(s): Polymer crystallization and properties
2013 - Wiley | Polymer International
Produção Nacional
Revisado por pares
Tiago T. Santos, Tatiara G. Almeida, Dayanne Diniz de Souza Morais, Fernão D. Magalhães, Rui Miranda Guedes, Eduardo L. Canedo, Laura Hécker de Carvalho,
Tópico(s): Polymer crystallization and properties
2019 - Springer Science+Business Media | Polymer Bulletin
... the circumnavigation of the world by Ferdinand Magellan (Fernão de Magalhães) between 1519 and 1521. Instead of Magellan, Harun' ... the circumnavigation, see the appendix 'De reis van Fernão de Magalhães' in Wickeren (Citation2000: 197–246). We owe much ...
Tópico(s): Education and Islamic Studies
2009 - Routledge | Indonesia and the Malay World
Sandra Monteiro, Jorge Martins, Fernão D. Magalhães, Luísa Carvalho,
It has been shown that wood particleboards bonded with sour cassava starch can display low density combined with good physico-mechanical performance, thanks to starch being able to produce a strong foam that fills the interparticular space. Here we optimize the pressing conditions for the production of these panels. The procedure involved hot-plate pressing in two stages: (1) lowering the top platen to a specified thickness for a duration designated as pressing time, followed by (2) raising the top ...
Tópico(s): Nanocomposite Films for Food Packaging
2019 - Multidisciplinary Digital Publishing Institute | Materials
Ana M. Ferreira, Jorge Martins, Luísa Carvalho, Fernão D. Magalhães,
Single-use plastic items made of non-biodegradable and fossil-based materials have been identified as a major environmental problem in modern society. Food packaging materials represent an important fraction of these, and replacement with biosourced, sustainable and low-cost alternatives, is a key priority. In the present work, and for the first time, trays suitable for some food packaging applications were produced by the hot-pressing of brewer's spent grains (BSG, a low added-value byproduct of ...
Tópico(s): biodegradable polymer synthesis and properties
2019 - Multidisciplinary Digital Publishing Institute | Polymers
Diana Paiva, André M. Pereira, Ana L. Pires, Jorge Martins, Luísa Carvalho, Fernão D. Magalhães,
Microparticles of corn starch and chitosan crosslinked with glutaraldehyde, produced by the solvent exchange technique, are studied as reinforcement fillers for thermoplastic corn starch plasticized with glycerol. The presence of 10% w/w chitosan in the microparticles is shown to be essential to guaranteeing effective crosslinking, as demonstrated by water solubility assays. Crosslinked chitosan forms an interpenetrating polymer network with starch chains, producing microparticles with a very low ...
Tópico(s): biodegradable polymer synthesis and properties
2018 - Multidisciplinary Digital Publishing Institute | Polymers
... de uma curta “narração” sobre a viagem de Fernão de Magalhães escrita por um português. Trata-se da única ...
Tópico(s): Travel Writing and Literature
2022 - Editora da Pontifícia Universidade Católica do Rio Grande do Sul (EDIPUCRS) | Letrônica
The Portuguese figure of the Fernão de Magalhães/Fernando de Magallanes marked an important turn in the Iberian history, since he carried out the first circumnavigation of the Earth, ...
Tópico(s): Basque language and culture studies
2019 - Autonomous University of Madrid | Revista Historia Autónoma
Thomaz Oscar Marcondes de Souza,
Apreciando com a habitual imparcialidade a viagem de Fernão de Magalhães, o notável americanista norte-americano Henry Harrisse assim ...
Tópico(s): Colonialism, slavery, and trade
1961 - UNIVERSIDADE DE SÃO PAULO | Revista de História
Se a viagem de Fernão de Magalhães tivesse conseguido acrescentar as Molucas ao mundo espanhol, a história da Amé-rica do Sul teria sido bem diferente. A ...
Tópico(s): History of Colonial Brazil
1961 - UNIVERSIDADE DE SÃO PAULO | Revista de História
Joana V. Barbosa, F. C. E. de Oliveira, Jorge Moniz, Fernão D. Magalhães, Margarida M. S. M. Bastos,
Abstract This work evaluated the use of allyl fatty acid esters derived from vegetable oil (palmitic acid, soybean and sunflower oils) as reactive coalescing agents in a waterborne latex system. Allyl fatty acid derivatives (AFAD) from vegetable oils were synthesized by two different processes. The synthesis was monitored by IR‐spectroscopy and the final product characterized by FT‐IR, GC–MS, 1 H and 13 C NMR. The presence of conjugated double bonds in the aliphatic chain was confirmed, which is a ...
Tópico(s): Biodiesel Production and Applications
2012 - Wiley | Journal of the American Oil Chemists Society
Sandra Monteiro, Jorge Martins, Fernão D. Magalhães, Luísa Carvalho,
Wood composites are materials made by bonding together wood and adhesives into a large material that can be used for different purposes. Nowadays, lightweight materials play an important role in several industries: aerospace, building and furniture. The reduction of weight is desirable for economic reasons (materials and transportation costs) and environmental reasons (resources, eco-efficiency). Once wood composites are employed in these industries, low density is a desired property. There are several ...
Tópico(s): Wood Treatment and Properties
2017 - Springer International Publishing | Springer series on polymer and composite materials
Artur M. Pinto, Fernão D. Magalhães,
Graphene-polymer nanocomposites continue to gain interest in diverse scientific and technological fields [...]
Tópico(s): Carbon Nanotubes in Composites
2021 - Multidisciplinary Digital Publishing Institute | Polymers
Pedro Bandeira, Judith Monteiro, A.P.M. Baptista, Fernão D. Magalhães,
This work reports the tribological performance of a self-lubricating epoxy-PTFE coating modified with oxidized graphene nanoplatelets (GNPox) and 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [DMIM][NTf2] ionic liquid, alone and in combination. [DMIM][NTf2] was incorporated without encapsulation, which is shown not to hinder coating adhesion for the tested applications. Crossed-cylinders tribological testing of coatings under different load conditions showed synergistic effects from ...
Tópico(s): Diamond and Carbon-based Materials Research
2016 - Elsevier BV | Tribology International
Carolina Gonçalves, Artur M. Pinto, A. V. Machado, J. Agostinho Moreira, Inês C. Gonçalves, Fernão D. Magalhães,
A recently made available form of graphene nanoplatelets (GNP‐C) is investigated for the first time as reinforcement filler for PLA. GNP‐C, with thickness of about 2 nm and length 1–2 μm, was incorporated at different loadings (0.1–0.5 wt%) in poly(lactic acid) (PLA) by melt blending. The effect of varying mixing time and mixing intensity was studied and the best conditions were identified, corresponding to mixing for 20 min at 50 rpm and 180°C. Thermal analysis (differential scanning calorimetry and ...
Tópico(s): Bone Tissue Engineering Materials
2016 - Wiley | Polymer Composites
Artur M. Pinto, Carolina Gonçalves, Inês C. Gonçalves, Fernão D. Magalhães,
Two types of graphene nanoplatelets (GNP-M and GNP-C) were incorporated in PLA by melt-blending at 0.25 wt.% loading, and the resulting composites subject to hydrolytic degradation for 6 months in phosphate-buffered saline (PBS) at 37 °C. The materials were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), size exclusion chromatography (GPC-SEC), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), tensile testing, ...
Tópico(s): Bone Tissue Engineering Materials
2016 - Elsevier BV | European Polymer Journal
Artur M. Pinto, Carolina Gonçalves, Daniela M. Sousa, Ana Rita Ferreira, J. Agostinho Moreira, Inês C. Gonçalves, Fernão D. Magalhães,
Graphene-based materials (GBMs) have recognized potential for biomedical applications, however different production methods and treatments originate divergent biocompatibility. In this work, two commercially available graphene nanoplatelets (GNP) were studied, differing in platelet size: GNP-C, with 1–2 μm, and GNP-M, with 5 μm. GNP-M was oxidized using KMnO4 in different ratios (1:3 and 1:6), leading to GNP-M-ox-1:3 and GNP-M-ox-1:6. The effect of oxidation and size on biocompatibility was evaluated ...
Tópico(s): Carbon and Quantum Dots Applications
2015 - Elsevier BV | Carbon
Pedro Bandeira, Judith Monteiro, A.P.M. Baptista, Fernão D. Magalhães,
In this work, a PTFE-based self-lubricating coating containing microencapsulated [HMIM][NTf2] ionic liquid (IL) lubricant is reported. The microcapsules, made of polysulphone, are prepared by solvent evaporation. In order to allow incorporation in the thin PTFE coating layer, which is applied by spraying, the capsules were produced with small sizes (below 10 μm). Their physico-chemical characterization is presented in terms of SEM/EDS, TGA, FTIR and particle size distribution analysis. It is shown ...
Tópico(s): Diamond and Carbon-based Materials Research
2015 - Springer Science+Business Media | Tribology Letters
Artur M. Pinto, Inês C. Gonçalves, Fernão D. Magalhães,
Graphene-based materials (GBMs) have broad potential applications in biomedical engineering and biotechnology. However, existing studies regarding biological effects of GBMs often present contradictory or inconclusive results. This work presents a review of published data in order to provide a critical overview of the state of the art. Firstly, the distinct physical–chemical nature of the GBMs available is clarified, as well as the production methods involved. The review then discusses the available ...
Tópico(s): Bone Tissue Engineering Materials
2013 - Elsevier BV | Colloids and Surfaces B Biointerfaces
Artur M. Pinto, Susana Moreira, Inês C. Gonçalves, Miguel Gama, Adélio Mendes, Fernão D. Magalhães,
The incorporation of graphene-based materials has been shown to improve mechanical properties of poly(lactic acid) (PLA). In this work, PLA films and composite PLA films incorporating two graphene-based materials – graphene oxide (GO) and graphene nanoplatelets (GNP) – were prepared and characterized regarding not only biocompatibility, but also surface topography, chemistry and wettability. The presence of both fillers changed the films surface topography, increasing the roughness, and modified the wettability – ...
Tópico(s): Electrospun Nanofibers in Biomedical Applications
2012 - Elsevier BV | Colloids and Surfaces B Biointerfaces
Artur M. Pinto, Joana I.T.A. Cabral, David A. Pacheco Tanaka, Adélio Mendes, Fernão D. Magalhães,
Abstract Nanocomposite thin films of poly(lactic acid) (PLA) were produced incorporating small amounts (0.2 to 1 wt%) of graphene oxide (GO) and graphene nanoplatelets (GNP). The films were prepared by solvent‐casting. Mechanical properties were evaluated for plasticized (by residual solvent) and unplasticized films. Plasticized nanocomposite films presented yield strength and Young's modulus about 100% higher than those of pristine PLA. For unplasticized films improvements in tensile strength and Young' ...
Tópico(s): Bone Tissue Engineering Materials
2012 - Wiley | Polymer International