Produção Nacional
Revisado por pares
Marcelo Rodrigues Marques, Diego Damasceno Paz, Lívia Patrícia Rodrigues Batista, Celma de Oliveira Barbosa, Marcos Antônio Mota Araújo, Regilda Saraiva dos Reis Moreira-Araújo,
... of in vitro Terminalia Catappa Linn (locally called castanhola) using the DPPH assay. The castanhola fruits had an average weight of 19.60 ± ... resulting in no significant levels. Aqueous extracts of castanhola pulp showed a higher concentration of phenolics, 244. ...
Tópico(s): Food Science and Nutritional Studies
2012 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Produção Nacional
Amanda Larissa Garça de Souza, Maria Caroline Rodrigues Ferreira, Letícia Ramos de Miranda, Rayssa Caroline de Almeida Silva Silvino, Natasha Dantas Lorenzo, Nádia Cristina Fernandes Corrêa, Orquídea Vasconcelos dos Santos,
... como objetivo aplicar tecnologias analíticas ao fruto da castanhola (Terminalia catappa Linn.), com vistas à agregação de ...
Tópico(s): Agricultural and Food Sciences
2016 - | Revista Pan-Amazônica de Saúde
Produção Nacional
Revisado por pares
Edilayane da Nóbrega Santos, Erick dos Anjos Bezerra, Luciana Márcia Andrade da Silva, Mônica Tejo Cavalcanti,
... a farinha proveniente da polpa do fruto da castanhola. Os parâmetros analisados foram umidade </span><span>2, ... seguido pelas proteínas. Desta forma, a farinha da castanhola surge como uma alternativa para aplicação em diversos ...
Tópico(s): Food Science and Nutritional Studies
2017 - Grupo Verde de Agroecologia e Abelhas (GVAA) | Revista Verde de Agroecologia e Desenvolvimento Sustentável
... em seringueiras; Oligonychus mangiferus (Rahman & Punjab, 1940) em castanhola e Tetranychus desertorum Banks, 1900 em juta.
Tópico(s): Study of Mite Species
1979 - SciELO | Anais da Escola Superior de Agricultura Luiz de Queiroz
A. Loureiro, B. F. O. Costa, António Castanhola Batista, A. Rodrigues,
The aim of this research is to study the effect of an activating flux, two shielding gases (100%Ar and 50%Ar z 50%He) and a range of weld currents on the microstructure of autogeneous A-TIG welds on an austenitic stainless steel. Metallographic, Mössbauer, X-ray diffraction and magnetic permeability methods were used in the study to evaluate ferrite content in the welds. The increase in welding current coarsened the microstructure and increased the retained ferrite content in welds made with and ...
Tópico(s): Microstructure and Mechanical Properties of Steels
2009 - Maney Publishing | Science and Technology of Welding & Joining
Jorge Rebelo, Martin Kornmeier, António Castanhola Batista, A. Morão Dias,
During electro discharge machining (EDM) a characteristic residual stress profile is formed. The process is essentially thermal and leads to tensile residual stresses at the surface. The profile form is independent from the discharge energy. However, the profile depth, the maximum value of the tensile residual stresses and the depth where the maximum is observed are found to be energy dependent. The residual stress profile is characterised by an increase from a certain tensile value at the surface ...
Tópico(s): Advanced Surface Polishing Techniques
2002 - Trans Tech Publications | Materials science forum
Produção Nacional
Revisado por pares
I DOSSANTOS, Sandra Helena Vieira de Carvalho, J SOLLETI, W FERREIRADELASALLES, K TEIXEIRADASILVADELASALLES, Simoni Margareti Plentz Meneghetti,
... catappa L (TC), popularly known in Brazil as "castanhola", evaluating selected properties and chemical composition of the ...
Tópico(s): Plant biochemistry and biosynthesis
2008 - Elsevier BV | Bioresource Technology
J. P. Nobre, António Castanhola Batista, Luís Coelho, Alfredo M. P. G. Dias,
Two experimental methods to characterize the mechanical behavior of work-hardened surface layers of metallic materials, induced by mechanical surface treatments, are described and discussed. The study was conducted using two steels with different mechanical properties, subjected to a similar shot-peening treatment. To characterize the elastic–plastic behavior of the surface layers affected by shot-peening, the X-ray diffraction assisted four-point bending method (XRDABM) and the normalized hardness ...
Tópico(s): Metal Alloys Wear and Properties
2010 - Elsevier BV | Journal of Materials Processing Technology
Z. Pu, J.C. Outeiro, António Castanhola Batista, O. W. Dillon, David A. Puleo, I.S. Jawahir,
Surface integrity of machined components has a critical impact on their performance. Magnesium alloys are lightweight materials used in the transportation industry and are also emerging as a potential material for biodegradable medical implants. Surface integrity factors, such as grain size, crystallographic orientation and residual stress, have been proved to remarkably influence the functional performance of magnesium alloys, including corrosion/wear resistance and fatigue life. In this study, ...
Tópico(s): Metal Alloys Wear and Properties
2011 - Elsevier BV | International Journal of Machine Tools and Manufacture
J. P. Nobre, Jan-Hendrik Stiffel, Wim Van Paepegem, Andreas Nau, António Castanhola Batista, María José Marqués, Berthold Scholtes,
In this work, a methodology to quantify the effect of the drilling operation, during the application of the incremental hole-drilling technique (IHD) for measuring residual stresses in laminate composites, in particular, the polymer matrix composites (PMC), is presented. This technique will allow the optimization of the drilling procedures and its parameters, enabling the quantification of the drilling effect. This quantification is obtained by using an experimental calibration procedure followed ...
Tópico(s): Advanced Machining and Optimization Techniques
2011 - Trans Tech Publications | Materials science forum
Z. Pu, J.C. Outeiro, António Castanhola Batista, O. W. Dillon, David A. Puleo, I.S. Jawahir,
Surface integrity of machined products has a critical impact on their functional performance. Magnesium alloys are lightweight materials for transportation industry and are also emerging as a potential material for temporary biomedical implants. However, their unsatisfactory corrosion resistance limits their application to a great extent. Surface integrity factors, such as grain size, crystallographic orientation and residual stresses, were reported to have significant influence on corrosion resistance ...
Tópico(s): Metal and Thin Film Mechanics
2011 - Elsevier BV | Procedia Engineering
J.C. Outeiro, António Castanhola Batista, María José Marqués,
The major challenge of the Mg alloys has been their unsatisfactory corrosion resistance, which can be enhanced by improving the surface integrity. Cryogenic machining, where liquid nitrogen was used during machining, has been reported to improve the surface integrity of machined components, including compressive residual stresses. This paper analyses the influence of several cutting parameters, tool geometry and cryogenic conditions on the surface and subsurface residual stresses distribution.
Tópico(s): Metal Alloys Wear and Properties
2014 - Trans Tech Publications | Advanced materials research
J.C. Outeiro, Frédéric Rossi, Guillaume Fromentin, Gérard Poulachon, G. Germain, António Castanhola Batista,
The corrosion resistance of magnesium alloys depends mainly on its surface integrity. Previous experimental studies have shown that machining can induces small (nano-scale) grain size, compressive residual stresses and basal plane crystallographic texture, which significantly improve the corrosion resistance of magnesium alloy. These studies have focused on the positive effects of cryogenic cooling and tool edge radius preparation. In this paper, the influence of a wide range of cutting process parameters ( ...
Tópico(s): Metal and Thin Film Mechanics
2013 - Elsevier BV | Procedia CIRP
J. P. Nobre, Jan-Hendrik Stiffel, Andreas Nau, J.C. Outeiro, António Castanhola Batista, Wim Van Paepegem, Berthold Scholtes,
Residual strains induced by drilling of glass-fibre reinforced polymers (GFRPs) were determined using a hybrid experimental–numerical methodology. Experimentally, a set of GFRP specimens were drilled under well-defined tensile (calibration) stresses, using an especially designed tensile test device. To remove the effect of the initial residual stresses, this methodology considers differential stress values instead of absolute ones. Numerically, the experimental procedure was simulated using the finite ...
Tópico(s): Advanced Machining and Optimization Techniques
2013 - Elsevier BV | CIRP Annals
María José Marqués, Anandkumar Ramasamy, António Castanhola Batista, J. P. Nobre, A. Loureiro,
Samples of ferritic–perlitic steel were cladded by submerged arc welding with three layers of two austenitic stainless steel filler metals. After the weld cladding, samples were submitted to stress relief heat treatment (SRHT) under different parameters. The characterization of the microstructure of the samples was made by optical and scanning electron microscopy, and the residual stresses determined by X-ray diffraction and incremental hole drilling method. The results were compared and related ...
Tópico(s): High Entropy Alloys Studies
2015 - Elsevier BV | Journal of Materials Processing Technology
Rafael Ramos, Natália Ferreira, J.A.M. Ferreira, C. Capela, António Castanhola Batista,
Shot peening and ultrasonic peening are widely used mechanical surface treatment in the automotive and aerospace industries to improve the fatigue life of metallic components. This work aims to further improve the mechanical properties of the AA7475-T7351 alloy by applying three different peening processes: Ultrasonic Peening (USP) and Microshot Peening with two different beads size (MSP). A systematic study was carried out on the roughness, surface hardening, residual stress profiles and fatigue ...
Tópico(s): Advanced machining processes and optimization
2016 - Elsevier BV | International Journal of Fatigue
Produção Nacional
Revisado por pares
Oscar Tadeu Ferreira da Costa, Lucas Castanhola Dias, Cacilda Satomy Yano Malmann, César Augusto de Lima Ferreira, Iracimar Batista do Carmo, Andrew Georg Wischneski, Rafael Luckwu de Sousa, Bruno Adan Sagratzki Cavero, Juliana Luiza Varjão Lameiras, Maria Cristina Dos‐Santos,
Farming of Amazonian native fish species holds great promise. One species whose characteristics make it suitable for intensive farming is tambaqui (Colossoma macropomum). However, there is a lack of consensus about the most suitable stocking density (SD) for intensive farming. More information on the physiology of fish in farming systems is thus required, as this would increase our understanding of the effects of stress on these fish. The aim of this study was therefore to evaluate the effect of different ...
Tópico(s): Fish biology, ecology, and behavior
2018 - Elsevier BV | Aquaculture
Francesco Careri, Stano Imbrogno, Domenico Umbrello, Moataz M. Attallah, J.C. Outeiro, António Castanhola Batista,
The aim of this study is to determine the most suitable post-processing routines to enhance the surface integrity of components produced with Inconel 718 superalloy by additive manufacturing. The components were fabricated by Direct Energy Deposition (DED) followed by two typical post-processing methods: machining and heat treatment. The effect of the post-processing sequence (machining + heat treatment or heat treatment + machining) and the corresponding effects on the surface integrity of these components ...
Tópico(s): High Entropy Alloys Studies
2020 - Elsevier BV | Journal of Manufacturing Processes
Natália Ferreira, J.S. Jesus, J.A.M. Ferreira, C. Capela, J.D. Costa, António Castanhola Batista,
The present work aims to analyse the effect of shot peening processing parameters, material and size of beads on the fatigue behaviour of aluminium alloy AA7475-T7351. A systematic study was carried out on the roughness, surface hardening, residual stress profiles and fatigue life. Fatigue tests were carried out under both three points bending (3 PB) and tensile loadings. For 3 PB tests it was concluded that shot peening does not introduce significant improvement on fatigue life and that the use ...
Tópico(s): Advanced machining processes and optimization
2020 - Elsevier BV | International Journal of Fatigue
Produção Nacional
Revisado por pares
Monique Freire Santana, Rebecca Augusta de Araújo Pinto, Bruna Hilzendeger Marcon, Lia Carolina Soares Medeiros, Thiago Barros do Nascimento de Morais, Lucas Castanhola Dias, Lorenna Pereira de Souza, Gisely Cardoso de Melo, Wuelton Marcelo Monteiro, Marcus Lacerda, Fernando Val, Pritesh Lalwani, Luíz Carlos de Lima Ferreira,
INTRODUCTION: Electron microscopy (EM) is a rapid and effective tool that can be used to create images of a whole spectrum of virus-host interactions and, as such, has long been used in the discovery and description of viral mechanisms. METHODS: Electron microscopy was used to evaluate the pulmonary pathologies of postmortem lung sections from three patients who died from infection with SARS-associated coronavirus 2 (SARS-CoV-2), a new member of the Coronaviridae family. RESULTS: Diffuse alveolar ...
Tópico(s): Dermatological and COVID-19 studies
2021 - Brazilian Society of Tropical Medicine | Revista da Sociedade Brasileira de Medicina Tropical
Produção Nacional
Revisado por pares
Rosângela Câmara Costa, Viviane Hiromi Uchida, Thaís Bezerra Veríssimo Miguel, Márcia Duarte, Kássio M. G. Lima,
... compounds (TPCs) and total anthocyanin compounds (TACs) in castanhola fruits.
Tópico(s): Phytochemicals and Antioxidant Activities
2016 - Royal Society of Chemistry | Analytical Methods
Produção Nacional
Revisado por pares
Juliana Luiza Varjão Lameiras, Valéria Mourão de Moura, Lucas Castanhola Dias, Ilia Gilmara Carvalho dos Santos, Oscar Tadeu Ferreira da Costa, Maria Cristina Dos‐Santos,
In this study, two mouse hyperimmune sera were produced, one using extract from the stinger of the stingray Potamotrygon motoro and the other using extract from the dorsal region of the same species and their cross-reactivity with extracts from the following species of stingrays from the Amazon basin was investigated using Western blot and dot ELISA: Paratrygon aiereba, Plesiotrygon iwamae, Potamotrygon orbignyi and Potamotrygon schroederi. The results show that the dorsal extract was as immunogenic ...
Tópico(s): Marine Invertebrate Physiology and Ecology
2017 - Taylor & Francis | Toxin Reviews
Gabriel Castillo-Dalí, Raquel Castillo de Oyagüe, Antonia Terriza, Saffar Jl, António Castanhola Batista, Ángel Barranco, Javier Cabezas-Talavero, Christopher D. Lynch, Brigitte Barouk, Anni Llorens, Alastair J. Sloan, Rocío V. Cayón, José Luís Gutiérrez Pérez, Daniel Tórres-Lagares,
To evaluate the bone regeneration potential of a new membrane fabricated with polyglycolide acid (PLGA) after being treated with oxygen plasma (PO2), and/or being functionalized with silicon dioxide (SiO2) or titanium dioxide (TiO2) nanoparticles.Bone defects (5 mm 3 mm) were produced on the top of 3 experimentation rabbits’ skulls and were covered with variously modified PLGA scaffolds. After the animals were sacrificed, neoformed bone (%), mineralized bone (mm), bone resorption (%), osteoclasts/mm2, and intensity ...
Tópico(s): Orthopaedic implants and arthroplasty
2014 - Elsevier BV | Journal of Dentistry
Produção Nacional
Revisado por pares
Marcela dos Santos Magalhães, Richard C. Vogt, Antônio Sebben, Lucas Castanhola Dias, Moacir Franco de Oliveira, Carlos Eduardo Bezerra de Moura,
Tópico(s): Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
2017 - Springer Science+Business Media | Zoomorphology
Produção Nacional
Lívia Karine Lima Rabelo, Eldeane de Castro Pires, Sarah Stephanie Rebelo Traian Baumann, Camila Amorim Santa Brígida, Jaine Beatriz Sousa da Silva, Pricila da Silva Lima, Mayra Piloni Maestri, Marina Gabriela Cardoso de Aquino,
... indica L.), Oitizeiro (Licania tomentosa), Jambeiro (Syzygium malaccense), Castanhola (Terminalia catappa), Cajueiro (Anacardium occidentale) e Goiabeira (Psidium ...
Tópico(s): Growth and nutrition in plants
2019 - Escola Superior de Sustentabilidade | Revista Ibero-Americana de Ciências Ambientais
Simon Vitzthum, Joana Rebelo-Kornmeier, M. Hofmann, Maximilian Gruber, Emad Maawad, António Castanhola Batista, Christoph Hartmann, Wolfram Volk,
The thermoelastic effect indicates the dependency of temperature and volume change in the material and, due to the heat released during plastic deformation, a temperature minimum occurs in the region of the onset of yielding. An experimental setup is presented for the microscopic analysis of the thermoelastic effect, which allows high precision measurements of specimen. In-situ diffraction experiments were performed for a single phase low carbon steel HC260Y using synchrotron diffraction at the ...
Tópico(s): Fatigue and fracture mechanics
2022 - Elsevier BV | Materials & Design
M. Martínez Duró, Tiago E. F. Silva, María José Marqués, António Castanhola Batista, P.A.R. Rosa, Abílio M.P. De Jesus,
Abstract Metal additive manufacturing (MAM) currently allows the production of mechanical components with technical specifications suitable for structural applications with a high level of complexity. Despite the most recent technological developments, additively manufactured parts may still lack the geometrical and dimensional accuracy as well as surface integrity required for precision mechanical assemblies and system reliability. These requirements often lead to post-processing operations through ...
Tópico(s): Welding Techniques and Residual Stresses
2023 - Springer Science+Business Media | The International Journal of Advanced Manufacturing Technology
J Loureiro, António Castanhola Batista, V. A. Khomchenko, B. F. O. Costa, G. Le Caër,
Order-disorder transformations were studied in annealed and high-energy ball-milled near-equiatomic FeCo alloys. X-ray diffraction with Co K α radiation enables to follow disordering with milling time because of anomalous dispersion.
Tópico(s): Microstructure and Mechanical Properties of Steels
2011 - Cambridge University Press | Powder Diffraction
Serafino Caruso, J.C. Outeiro, Domenico Umbrello, António Castanhola Batista,
Residual stress is one of the most important surface integrity parameter that can significantly affect the service performance of a mechanical component, such as: contact fatigue, corrosion resistance and part distortion. For this reason the mechanical state of both the machined surface and subsurface needs to be investigated. Residual stress induced by dry and cryogenic machining of hardened AISI 52100 steel was determined by using the X-ray diffraction technique. The objective was to evaluate ...
Tópico(s): Advanced Surface Polishing Techniques
2014 - Trans Tech Publications | Key engineering materials
Francesco Careri, Stano Imbrogno, Domenico Umbrello, J.C. Outeiro, António Castanhola Batista,
The paper presents a Finite Element Modelling (FEM) of the turning process on the Nickel superalloy IN718 produced by the Direct Energy Deposition (DED) to predict the residual stress. The material behaviour was implemented by a customized user-routine to take into account the anisotropy of the material due to the DED process. The residual stresses were experimentally measured on the surface and beneath the machined surface and the data collected were used to validate the FEM model.
Tópico(s): Welding Techniques and Residual Stresses
2021 - Elsevier BV | Procedia CIRP