Produção Nacional
Revisado por pares
Leonardo Roberto da Silva, Davi Alves da Silva, Francisco Vieira dos Santos, Fernando Júnio Duarte,
Tópico(s): Advanced Surface Polishing Techniques
2018 - Springer Science+Business Media | The International Journal of Advanced Manufacturing Technology
Produção Nacional
Revisado por pares
Aline Silva Magalhães, Iane Dutra Moutinho, Indiana Rosa Oliveira, Aline Oliveira Vasconcelos Ferreira, Davi Silva Alves, Dagoberto Brandão Santos,
Tópico(s): Material Properties and Failure Mechanisms
2017 - The Iron and Steel Institute of Japan | ISIJ International
Produção Nacional
Revisado por pares
Paula Oliveira Malta, Davi Silva Alves, Aline Oliveira Vasconcelos Ferreira, Iane Dutra Moutinho, Carolina Arriel Pedroso Dias, Dagoberto Brandão Santos,
Tópico(s): Microstructure and mechanical properties
2017 - Springer Science+Business Media | Metallurgical and Materials Transactions A
Produção Nacional
Revisado por pares
Aline Silva Magalhães, Carlos Eduardo dos Santos, Aline Oliveira Vasconcelos Ferreira, Davi Silva Alves, Dagoberto Brandão Santos,
Medium manganese steel is typically fabricated from hot-rolling followed by cold-rolling and intercritical annealing processes. However, a singular process, warm-rolling, is an appealing prospect. The microstructure, mechanical properties and texture of a 8 wt-% Mn–0.08 wt-% C steel was investigated by cold-rolling followed by intercritical annealing or warm-rolling. The product from both processes exhibited a highly refined microstructure as well as a large volume fraction of austenite. However, ...
Tópico(s): Metal Alloys Wear and Properties
2018 - Maney Publishing | Materials Science and Technology
Produção Nacional
Welka Preston, Yuri Jacques Agra Bezerra da Silva, Clístenes Williams Araújo do Nascimento, Karina Patrícia Vieira da Cunha, Davi José Silva, Hailson Alves Ferreira,
Contamination of vineyard soils by the continuous use of cupric fungicides and fertilizers has been a worldwide concern. The objective of this study was to determine the total concentration of Cu, Zn, Fe, Mn, Ni and Pb from vineyard soils of a semiarid region in Brazil. Soil samples at 0–20 and 20–40 cm depth were collected in areas under 5, 6, 8, 10, 12, 15, 16 and 30 years of cultivation, and compared with native vegetation areas. Samples were digested and total metal concentrations were determined ...
Tópico(s): Heavy Metals in Plants
2016 - Elsevier BV | Geoderma Regional
Produção Nacional
Revisado por pares
José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Ricardo Francisco Alves, Rênnio Félix de Sena, Ricardo Antônio Francisco Machado, Cintia Marangoni,
This work provides the first insights on the bioenergy potential of macauba endocarp (Acrocomia aculeate) based on the pyrolysis kinetics and thermodynamic parameters of activation. The kinetic triplet was obtained from non-isothermal thermogravimetric data by using four isoconversional methods, kinetic compensation effect, and master-plots method. The pyrolysis behavior of macauba endocarp was modeled with three independent parallel reactions, describing the devolatilization of pseudo-hemicellulose, ...
Tópico(s): Biodiesel Production and Applications
2021 - Elsevier BV | Thermochimica Acta
José Luiz Francisco Alves, Emmely Trindade, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Ricardo Francisco Alves, José Maria Barbosa‐Filho, Petrônio de Athayde‐Filho, Rennio de Sena,
This work aims to investigate the energy-related characteristics of apple bagasse, orange bagasse and cashew-apple bagasse to identify their potential as bioenergy feedstocks.For this, a detailed characterization was performed, including proximate analysis, ultimate analysis, atomic molar ratio, heating values, chemical composition, bulk density, bioenergy density, fuel-value-index (FVI), fossil fuel equivalence and potential CO 2 retention.Proximate composition revealed moisture, volatile matter, ...
Tópico(s): Biofuel production and bioconversion
2020 - Brazilian Chemical Society | Journal of the Brazilian Chemical Society
Produção Nacional
Revisado por pares
Welka Preston, Clístenes Williams Araújo do Nascimento, Yuri Jacques Agra Bezerra da Silva, Davi José Silva, Hailson Alves Ferreira,
Cultivation can substantially change soil quality through improvement or degradation of the physical and chemical characteristics.Vineyard soils are sensitive to soil changes due to the intensive chemical input.This study assesses the soil fertility changes in vineyard soils of the São Francisco valley in Northeastern Brazil during different cultivation time spans (5, 6, 8, 10, 12, 15, and 16 years).An area with natural vegetation (Caatinga) was used as a reference area.We analyzed pH, exchangeable ...
Tópico(s): Horticultural and Viticultural Research
2017 - Springer Science+Business Media | Journal of soil science and plant nutrition
Produção Nacional
Revisado por pares
Marivaldo José Costa Corrêa, Fátima Miranda Nunes, Heriberto Rodrigues Bitencourt, Fábio Borges, Giselle Maria Skelding Pinheiro Guilhon, Mara S.P. Arruda, Andrey M. R. Marinho, Alberdan Silva Santos, Cláudio Nahum Alves, Davi do Socorro Barros Brasil, Lourivaldo da Silva Santos,
The fungus Aspergillus flavus isolated as endophytic of the plant Paspalum maritimum Trin. was evaluated for its potential application in biotransformation reactions. The compounds chalcone (1), 3,4,5-trimethoxychalcone (2) and 2,3,4,4'-tetramethoxychalcone (3) were biotransformed, respectively, in dihydrochalcone (4), 3,4,5-trimethoxydihydrochalcone (5) and 2,3,4,4'-tetramethoxydihydrochalcone (6). The structures were elucidated by spectroscopic methods including 1D and 2D NMR techniques, and MS analysis. ...
Tópico(s): Steroid Chemistry and Biochemistry
2011 - Brazilian Chemical Society | Journal of the Brazilian Chemical Society
Produção Nacional
Geovane de Melo Leal, João Alves Silva, Davi Silva, Dihêgo Henrique Lima Damacena,
The use of technologies and their digital resources in society plays an increasingly important role in people's daily lives and education.This research aims to analyze the contributions of the use of information technologies in the teaching-learning process in chemistry by high school students of a public school of the state-Union-PI network.The results indicate that the majority of the students
Tópico(s): Education Pedagogy and Practices
2020 - Brazilian Journal of Development | Brazilian Journal of Development
Produção Nacional
Revisado por pares
Paula Oliveira Malta, Camila Magalhães Gonçalves, Davi Silva Alves, Aline Oliveira Vasconcelos Ferreira, Iane Dutra Moutinho, Dagoberto Brandão Santos,
Tópico(s): Hydrogen embrittlement and corrosion behaviors in metals
2016 - Springer Nature | Journal of materials research/Pratt's guide to venture capital sources
Produção Nacional
Revisado por pares
João Vicente de Figueiredo Latorraca, Milene Teixeira de Souza, Leonardo Davi Silveira Augusto Baptista da Silva, Letícia Maria Alves Ramos,
O Schizolobium parahyba (Vell.) Blake, popularmente conhecido por “guapuruvu”, apresenta anéis de crescimento distintos, evidenciados por maior espessamento de suas paredes no lenho tardio e pela presença de parênquima em faixa marginal. Neste contexto, o objetivo deste estudo foi construir a cronologia dos anéis de crescimento de árvores de S. parahyba de ocorrência na ReBio de Tinguá, RJ, visando gerar conhecimento sobre a dinâmica de crescimento da espécie, bem como sobre a sensibilidade da formação ...
Tópico(s): Plant Water Relations and Carbon Dynamics
2015 - Sociedade de Investigações Florestais | Revista Árvore
Produção Nacional
Revisado por pares
Guilherme Davi Mumbach, José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Rênnio Félix de Sena, Cintia Marangoni, Ricardo Antônio Francisco Machado, Ariovaldo Bolzan,
Pyrolysis is widely used as a waste treatment technology (thermal recycling), which can be an alternative to disposal in landfills. To investigate the applicability of pyrolysis of plastic solid waste (PSW) to recovery energy from plastic solid waste (PSW), the pyrolysis of PSW was performed in a thermogravimetric analyzer under an inert condition. The PSW samples were heated under dynamic conditions from 25 °C to 1000 °C at four low heating rates (5, 10, 20, and 30 °C min−1). The decomposition behavior ...
Tópico(s): Municipal Solid Waste Management
2019 - Elsevier BV | Energy Conversion and Management
Produção Nacional
Guilherme Davi Mumbach, José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Michele Di Domenico, Rênnio Félix de Sena, Cintia Marangoni, Ricardo Antônio Francisco Machado, Ariovaldo Bolzan,
Tópico(s): Thermal and Kinetic Analysis
2020 - Springer Nature | Biomass Conversion and Biorefinery
Produção Nacional
Revisado por pares
Guilherme Davi Mumbach, José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Michele Di Domenico, Santiago Arias, José Geraldo A. Pacheco, Cintia Marangoni, Ricardo Antônio Francisco Machado, Ariovaldo Bolzan,
This work reports the first detailed investigation of the physicochemical properties of the pecan nutshell waste (PNS) and its suitability for pyrolytic conversion into bioenergy and bio-based chemicals based on the kinetic triplet, thermodynamic parameters, and Py-GC/MS analysis. The pyrolysis behavior of PNS was assessed using a thermogravimetric analyzer at five heating rate programs under an oxygen-free atmosphere. The Asym2Sig deconvolution function showed that pyrolysis of PNS might be successfully ...
Tópico(s): Lignin and Wood Chemistry
2021 - Elsevier BV | Renewable and Sustainable Energy Reviews
Produção Nacional
Revisado por pares
Guilherme Davi Mumbach, José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Michele Di Domenico, Cintia Marangoni, Ricardo Antônio Francisco Machado, Ariovaldo Bolzan,
The pyrolysis of butia seed waste (BSW) was investigated under a thermogravimetric scale at multiples heating rates (5–40 °C min−1) in a nitrogen atmosphere. First, the pyrolysis behavior of BSW was deconvoluted into four independent reactions using the Asym2Sig fitting function. The kinetic triplets (activation energies, pre-exponential factors, and reaction models) were acquired using four isoconversional methods, the compensation effect method and the master plot method. The kinetic parameters estimated ...
Tópico(s): Biodiesel Production and Applications
2022 - Elsevier BV | Renewable Energy
Produção Nacional
Revisado por pares
Maria Z.R. Silva, João Paulo Bestete de Oliveira, Márcio V. Ramos, Davi Felipe Farias, Chayenne Alves de Sá, Juliana A.C. Ribeiro, Ayrles F.B. Silva, J. S. de Sousa, Rafael Audino Zambelli, Ana C. da Silva, Gilvan Pessoa Furtado, Thalles B. Grangeiro, Mirele S. Vasconcelos, Sandro Rios Silveira, Cléverson D.T. Freitas,
This article reports the characterization and evaluation of the biotechnological potential of a cysteine protease purified from Calotropis procera (CpCP3). This enzyme was highly stable to different metal ions and was able to hydrolyze κ-casein similarly to bovine chymosin. Atomic force microscopy showed that the process of casein micelle aggregation induced by CpCP3 was similar to that caused by chymosin. The cheeses made using CpCP3 showed higher moisture content than those made with chymosin, ...
Tópico(s): Vitamin K Research Studies
2019 - Elsevier BV | Food Chemistry
Produção Nacional
Revisado por pares
José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Ricardo Francisco Alves, Michele Di Domenico, Cintia Marangoni,
An investigation was conducted to elucidate the bioenergy potential of mango seed waste through pyrolysis kinetics, thermodynamics parameters of activation, and analysis of evolved volatiles. Experiments were performed in a thermogravimetric analyzer (TGA) coupled with a Fourier transform infrared (FTIR) spectrometer. The pyrolysis behavior was assumed to be the sum of four independent parallel reactions corresponding to the devolatilization of extractives, hemicellulose, cellulose, and lignin. The ...
Tópico(s): Thermal and Kinetic Analysis
2023 - Elsevier BV | Thermochimica Acta
Produção Nacional
Revisado por pares
Francinaldo Leite da Silva, Alan de Oliveira Campos, Davi Alves dos Santos, Sérgio Dantas de Oliveira Júnior, Carlos Eduardo de Araújo Padilha, Francisco Canindé de Sousa Júnior, Gorete Ribeiro de Macêdo, Everaldo Silvino dos Santos,
In this study the effect of pretreatments, such as hydrothermal (HT) with hydrogen peroxide-alkaline (HP-A), acid-alkaline (AA), or alkaline (AL) pretreatments, on the Carnauba (Copernicia prunifera) straw residue—a plant native to Brazil that is used to produce wax —as well as the use of the pretreated biomass for the production of lignocellulolytic enzymes (cellulases and xylanases) by Trichoderma reesei CCT2768 using solid state fermentation (SSF) were evaluated. The untreated and pretreated biomasses ...
Tópico(s): Catalysis for Biomass Conversion
2017 - Elsevier BV | Renewable Energy
Produção Nacional
Revisado por pares
Francinaldo Leite da Silva, Alan de Oliveira Campos, Davi Alves dos Santos, Emilianny Rafaely Batista Magalhães, Gorete Ribeiro de Macêdo, Everaldo Silvino dos Santos,
In this study, the use of carnauba straw residue to produce cellulosic ethanol by simultaneous saccharification and fermentation (SSF) with three industrial yeasts was investigated. Hydrothermal (HT), alkaline (AL), and acid–alkaline (AA) pretreatments were carried out on the residues, and the efficiency of the enzymatic hydrolysis of these residues was evaluated. The SSF was performed using Saccharomyces cerevisiae UFLA CA11, Saccharomyces cerevisiae CAT-1, and Kluyveromyces marxianus ATCC-36907 at ...
Tópico(s): Catalysis for Biomass Conversion
2018 - Elsevier BV | Renewable Energy
Produção Nacional
Revisado por pares
Daniel Gomide Alves, Jéssica Terra Teodoro da Silva, Davi Batista Quintino, Carlos Henrique Ataíde,
In an oil well drilling operation, the control of the pressure exerted by the fluid occupying the annular region is essential for the success and reliability of this expensive operation. If the pressure exerted by the fluid is less than the pore pressure of the formation, the undesirable invasion of fluids trapped in these pores into the well will occur. If, in contrast, the pressure exerted by the fluid is very high, the fracture of the rock formation can occur, which in extreme cases can lead ...
Tópico(s): Granular flow and fluidized beds
2019 - Elsevier BV | Separation and Purification Technology
Produção Nacional
Revisado por pares
Francinaldo Leite da Silva, Davi Alves dos Santos, Alan de Oliveira Campos, Emilianny Rafaely Batista Magalhães, Everaldo Silvino dos Santos,
Tópico(s): Lignin and Wood Chemistry
2021 - Springer Science+Business Media | Applied Biochemistry and Biotechnology
Produção Nacional
Revisado por pares
Davi Mello Cunha Crescente Alves, José Alexandre Felizola Diniz‐Filho, Kelly da Silva e Souza, Sidney F. Gouveia, Fabricio Villalobos,
Several studies have already shown the close relationship between geographic gradients of biodiversity and distinct environmental determinants such as energy, environmental heterogeneity and seasonality. Nevertheless, whether and how such relationships vary around the globe remains poorly understood. Here we used spatial models to answer whether the bat species richness-environment relationship on a global scale are constant across geographic space. We also partitioned the contribution of the different ...
Tópico(s): Wildlife Ecology and Conservation
2017 - Elsevier BV | Basic and Applied Ecology
Produção Nacional
Revisado por pares
Dalila Chaves Sicupira, Raphael França Assumpção, Daniela Barçante Perasoli, Davi Silva Alves, Aline Oliveira Vasconcelos Ferreira, Dagoberto Brandão Santos,
Duplex stainless steel (DSS) has been considered as an excellent alternative for applications where high corrosion resistance and high mechanical strength are required. Therefore, microstructure and properties of DSS remain topics of much interest. For this purpose, the effect of warm-rolling was studied in a duplex stainless steel. The focus of this work was 2205 which is one of the most useful type of DSS. Although evolution of microstructure, texture and tensile properties during warm rolling ...
Tópico(s): Welding Techniques and Residual Stresses
2019 - Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímer | Materials Research
Produção Nacional
Revisado por pares
Danielly Albuquerque da Costa, Davi Antas e Silva, Aline Coutinho Cavalcanti, Marcos Antônio Alves de Medeiros, Julianeli Tolentino de Lima, José Marcílio Sobral Cavalcante, Bagnólia Araújo da Silva, Maria de Fátima Agra, María de Fátima Vanderlei de Souza,
The phytochemical investigation of Bakeridesia pickelii Monteiro led to the isolation of seven compounds: β-sitosterol, a mixture of sitosteryl-3-O-β-D-glucopyranoside and stigmasteryl-3-O-β-D-glucopyranoside, vanillic acid, p-coumaric acid, quercetin 3-O-β-Dglucopyranoside (isoquercitrin) and kaempferol-3-O-β-D-(6"-E-p-coumaroyl) glucopyranoside (tiliroside), which was isolated as the major component.Their structures were elucidated on the basis of spectroscopic data such as IR, 1 H and 13 C NMR, ...
Tópico(s): Traditional and Medicinal Uses of Annonaceae
2007 - Brazilian Chemical Society | Química Nova
Produção Nacional
Marcos Almeida Matos, Luanne Lisle dos Santos Silva, Giordano Bruno Alves, Walter Silva de Alcântara Júnior, Davi Veiga,
To verify the impact of avascular necrosis of the femoral head on the quality of life of children and adolescents with Perthes disease and sickle cell disease.A comparative study including 24 children between eight and 18 years old with avascular necrosis of the femoral head secondary to Perthes disease and sickle cell disease (Group with Necrosis) and 24 children considered asymptomatic (Group without Necrosis). Clinical and sociodemographic data were collected and the PedsQL 4.0 and the Charnley ...
Tópico(s): Hemoglobinopathies and Related Disorders
2018 - Brazilian Society of Orthopedics and Traumatology | Acta Ortopédica Brasileira
Produção Nacional
José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Ricardo Francisco Alves, Michele Di Domenico,
Tópico(s): Biodiesel Production and Applications
2022 - Springer Nature | Biomass Conversion and Biorefinery
Produção Nacional
Revisado por pares
P.W. Crous, Michael J. Wingfield, Treena I. Burgess, Angus J. Carnegie, G.E.St.J. Hardy, David Smith, Brett A. Summerell, J. Cano, Josep Guarro, Jos Houbraken, L. Lombard, M.P. Martín, Marcelo Sandoval‐Denis, A.V. Alexandrova, C.W. Barnes, I.G. Baseia, Jadson Diogo Pereira Bezerra, Vladimiro Guarnaccia, Tom W. May, Margarita Hernández‐Restrepo, Alberto M. Stchigel, Andrew N. Miller, María-Eugenia Ordoñez, Vanessa Pereira de Abreu, Thiago Accioly, Carlo Agnello, Adans A. Colmán, Cynthia Cavalcanti de Albuquerque, Dônis da Silva Alfredo, Pablo Alvarado, Gianne Rizzuto Araújo-Magalhães, S Arauzo, Toni June Atkinson, Angelo Barili, Robert W. Barreto, José Luiz Bezerra, Tiara Sousa Cabral, F Camello Rodríguez, Rhudson Henrique Santos Ferreira da Cruz, Pablo P. Daniëls, Bianca Denise Barbosa da Silva, Davi Augusto Carneiro de Almeida, Aníbal Alves de Carvalho Júnior, Cony Decock, Lynn Delgat, Sandra Denman, R. Dimitrov, Jacqueline Edwards, Anna G. Fedosova, Renato Juciano Ferreira, André Luiz Firmino, J A Flores, Dania García, Josepa Gené, Alejandra Giraldo, Jefferson dos Santos GÓIS, André Ângelo Medeiros Gomes, Camila Melo Gonçalves, D.E. Gouliamova, Marizeth Groenewald, Borislav Guéorguiev, Marcela Guevara‐Suarez, Luís Fernando Pascholati Gusmão, Kentaro Hosaka, Vít Hubka, Sabine M. Huhndorf, Margita Jadan, Ž Jurjević, Bart Kraak, Viktor Kučera, T. K. Arun Kumar, Ivana Kušan, Sírleis Rodrigues Lacerda, Supaporn Lamlertthon, W. S. Lisboa, Michael Loizides, Janet Jennifer Luangsa-ard, P Lysková, Walter P. Mac Cormack, D. M. Macedo, Alexandre Reis Machado, Ekaterina Malysheva, Paulo Marinho, Neven Matočec, Martin Meijer, Armin Mešić, Suchada Mongkolsamrit, Keila Aparecida Moreira, Olga Morozova, K U Nair, Noritaka Nakamura, Wasana Noisripoom, Ibai Olariaga, Rafael José Vilela de Oliveira, Laura Mesquita Paiva, Prativesh Pawar, Olinto Liparini Pereira, Stephen W. Peterson, María Prieto, Ernesto Rodríguez-Andrade, C Rojo De Blas, Manish Roy, Everaldo Silvino dos Santos, Rohit Sharma, Gladstone Alves da Silva, Cristina Maria de Souza‐Motta, Yuko Takeuchi-Kaneko, Chihiro Tanaka, Ajaykumar Thakur, Maudy Th. Smith, Zdenko Tkalčec, Nicomedes Valenzuela-López, P van der Kleij, Annemieke Verbeken, Marina Delli Zotti Souza Viana, X W Wang, J.Z. Groenewald,
Novel species of fungi described in this study include those from various countries as follows: Antarctica: Cadophora antarctica from soil. Australia: Alfaria dandenongensis on Cyperaceae, Amphosoma persooniae on Persoonia sp., Anungitea nullicana on Eucalyptus sp., Bagadiella eucalypti on Eucalyptus globulus, Castanediella eucalyptigena on Eucalyptus sp., Cercospora dianellicola on Dianella sp., Cladoriella kinglakensis on Eucalyptus regnans, Cladoriella xanthorrhoeae (incl. Cladoriellaceae fam. ...
Tópico(s): Mycorrhizal Fungi and Plant Interactions
2017 - National Herbarium of the Netherlands | Persoonia - Molecular Phylogeny and Evolution of Fungi
Produção Nacional
Revisado por pares
José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Michele Di Domenico, Rênnio Félix de Sena, Ricardo Antônio Francisco Machado, Cintia Marangoni,
Tópico(s): Biofuel production and bioconversion
2020 - Springer Science+Business Media | BioEnergy Research
Produção Nacional
Revisado por pares
José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Michele Di Domenico, Valdemar Francisco da Silva Filho, Rênnio Félix de Sena, Ricardo Antônio Francisco Machado, Cintia Marangoni,
Around 2.96 million tons of potential feedstocks are generated annually in the form of jackfruit waste, including peels (JP) and seeds (JS). This study assessed the suitability of JP and JS as new feedstocks for combustion and their preliminary potential for bioenergy considering their physicochemical properties, bioenergy indicators, combustion behaviors and emission characteristics. The jackfruit wastes presented attractive features for direct application in combustion, such as their composition ...
Tópico(s): Biofuel production and bioconversion
2020 - Elsevier BV | Renewable Energy