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Influence of polymer insertion on the dielectric, piezoelectric and acoustic properties of 1-0-3 polyurethane/cement-based piezo composite
Sanches, A. O.
; ; Zaghete, M. A. ; ; Malmonge, J. A. ; Silva, M. J. ; Sakamoto, W. K. (Materials Research Bulletin, 2019) [Artigo]
Cement/polyurethane based piezo composite was fabricated with 1-0–3 connectivity. Microstructural analysis shows that polyurethane (PU) acts as a binder, reducing the porosity and improving the matrix adhesion to the ... -
Mechanical, thermal, and morphological properties of natural rubber/45S5 Bioglass® fibrous mat with ribbon-like morphology produced by solution blow spinning
Sousa, Eliraldrin Amorin; Silva, Michael Jones ; Sanches, Alex Otávio ; ; Job, Aldo Eloizo ; Malmonge, José Antonio (European Polymer Journal, 2019) [Artigo]
Natural rubber (NR)/45S5 Bioglass® (BG) based fibrous mat biocomposite were fabricated using a solution blow spinning (SBS) method. NG/BG fibrous mat with ribbon-like morphology were obtained with different amounts of 45S5 ... -
DBSA to improve the compatibility, solubility, and infusibility of cellulose nanowhiskers modified by polyaniline in reinforcing a natural rubber-based nanocomposite
Silva, Michael Jones; ; Sanches, Alex Otávio ; ; Malmonge, Jose Antonio (Polymer Bulletin, 2019) [Artigo]
In this study, the authors evaluate the potential of the reinforcement of cellulose nanowhiskers coated with polyaniline-DBSA (CNW-PANiDB) in a natural rubber latex nanocomposite. For this purpose, cellulose nanowhiskers ... -
Voltammetric techniques for pesticides and herbicides detection- an overview
Barbosa, Priscila Fernanda Pereira; ; ; Paim, Leonardo Lataro ; Nakamura, Ana Paula Rizzato ; ; do Carmo, Devaney Ribeiro (International Journal of Electrochemical Science, 2019) [Artigo]
Pesticides and herbicides contamination in soil, groundwater, rivers, lakes, rainwater and air is considered a matter of concern. Some techniques are used to detect the presence of those compounds, here in this review is ... -
Poly(vinyl pyrrolidone) sub-microfibers produced by solution blow spinning
; Silva, M. J.; Malmonge, L. F. ; Malmonge, J. A. (Journal of Polymer Research, 2018) [Artigo]
In this study, poly(vinyl pyrrolidone) (PVP) polymeric fibers were obtained by the solution blow-spinning (SBS) technique using PVP of low molecular weight. The fabrication of nano-microfibers of polymers with low molecular ... -
Sugarcane bagasse fiber as semi-reinforcement filler in natural rubber composite sandals
de Paiva, Fábio Friol Guedes; de Maria, Vitor Peixoto Klienchen ; ; Dognani, Guilherme ; dos Santos, Renivaldo José ; Cabrera, Flávio Camargo ; Job, Aldo Eloizo (Journal of Material Cycles and Waste Management, 2019) [Artigo]
In many countries, agricultural wastes cause significant air pollution due owing the burning of large amounts of residue. Biocomposites represent a new generation of materials that are eco-friendly, CO 2 -neutral, economical, ... -
THE ROLE OF BRAZIL IN THE REGIONAL INTEGRATION PROCESS IN MERCOSUR
Oliveira Cruz, Dayana Aparecida Marques de (Revista Formacao Online, 2018) [Artigo]
In the world system, Brazil plays the hybrid role of semiperiphery, alternating between regional leadership and subordination. In South America, the country is one of the main protagonists of the integration initiatives, ... -
DESHADOWING OF HIGH SPATIAL RESOLUTION IMAGERY APPLIED TO URBAN AREA DETECTION
; Oliveira, Renan Furlan de; Casaca, Wallace ; Silva, Erivaldo (Boletim De Ciencias Geodesicas, 2019) [Artigo]
Different built-up structures usually lead to large regions covered by shadows, causing partial or total loss of information present in urban environments. In order to mitigate the presence of shadows while improving the ... -
THERMOGRAVIMETRIC AND FTIR ANALYZES OF CORN COB PYROLYSIS
; ; Santiago Hansted, Ana Larissa; ; ; De Conti, Andrea Cressoni ; (Quimica Nova, 2019) [Artigo]
Charcoal has a large share in the Brazilian market. The production is carried out by pyrolysis of biomass at different temperatures, between 300 and 500 degrees C. In this study, the corn cob pyrolysis was investigated ... -
Longitudinal vortex generator applied to heat transfer enhancement of a flat plate solar water heater
Silva, Felipe A. S. da; ; Pantaleao, Aluisio V. ; Salviano, Leandro O. (Applied Thermal Engineering, 2019) [Artigo]
The population growth and industrial development increase the demand for energy and the solar energy conversion is an important alternative to complement the world energy matrix. Flat plate solar collectors are devices ... -
The seeds of the past and the fruits of tomorrow: the transformations and influences of the time in the cultural traits on the acampamento dos agregados of Rosana, Sao Paulo
Cortez Thomaz, Rosangela Custodio; Moreira Goncalves, Leonardo Giovane (Geosaberes, 2019) [Artigo]
This paper sought to understand whether there have been changes and influences in cultural traits of the agrarian reform camps of this in contrast with those of the past. To achieve these goals, was held a visitation and ... -
Optimal Restoration/Maintenance Switching Sequence of Unbalanced Three-Phase Distribution Systems
; Franco, John F.; ; Romero, Ruben (Ieee Transactions On Smart Grid, 2018) [Artigo]
This paper presents a mixed-integer non-linear programming (MINLP) model for the optimal restoration/maintenance switching sequence of unbalanced three-phase electrical distribution systems. Once the protection coordination ... -
An Analysis of the Optimal Switching Problem in Transmission Systems
Flores, Moises; Romero, Ruben ; Franco, John F. ; (2017 Ieee Pes Innovative Smart Grid Technologies Conference - Latin America (isgt Latin America), 2017) [Trabalho apresentado em evento]
This paper presents an analysis of the optimal transmission switching problem. Previous works have reported that opening a transmission line may result in the improvement of the economical operation of the electrical power ... -
A Contribution to the Optimization of the Reconfiguration Problem in Radial Distribution Systems
Macedo, Leonardo H.; Franco, John F. ; Mahdavi, Meisam ; Romero, Ruben (Journal Of Control Automation And Electrical Systems, 2018) [Artigo]
Optimal reconfiguration is one of the most important strategies used to improve the operation of radially operated distribution systems. A large amount of research related to the reconfiguration problem has been carried ... -
Joint optimal operation of photovoltaic units and electric vehicles in residential networks with storage systems: A dynamic scheduling method
Sabillon, Carlos; Franco, John F. ; ; Romero, Ruben (International Journal Of Electrical Power & Energy Systems, 2018) [Artigo]
The growing penetration of low-carbon technologies in residential networks such as photovoltaic generation (PV) units and electric vehicles (EVs) may cause technical issues on the grid. Thus, operation planning of electrical ... -
Defining Customer Export Limits in PV-Rich Low Voltage Networks
(IEEE Transactions on Power Systems, 2018) [Artigo]The growing adoption of residential photovoltaic (PV) systems around the world is presenting Distribution Network Operators (DNOs) with technical challenges, particularly on Low Voltage (LV) networks. The need to mitigate ... -
Analysis of the electrical conduction in percolative nanocomposites based on castor-oil polyurethane with carbon black and activated carbon nanopowder
(Polymer Composites, 2017) [Artigo]Flexible nanocomposite films derived from castor-oil polyurethane (PUR) and conductive fillers of activated carbon nanopowder (CNP) and carbon black (CB) nanoparticles were prepared by casting and characterized by scanning ... -
Integration between the ethanol production and the energy co-generation through the energetical densification of lignocellulosic residues and gasification process
De Conti, Andrea Cressoni; De Conti, Cláudio ; (Bioethanol and Beyond: Advances in Production Process and Future Directions, 2018) [Capítulo de livro]
This chapter presents the energetic densification as an alternative for the use of lignocellulosic residues, such as the ones from ethanol production, so that they can be used in gasifiers, aiming towards the energy ... -
Inducing Contextual Classifications with Kernel Functions into Support Vector Machines
Negri, Rogério Galante; Da Silva, Erivaldo Antônio ; Casaca, Wallace (IEEE Geoscience and Remote Sensing Letters, 2018) [Artigo]
Kernel functions have revolutionized theory and practice in the field of pattern recognition, especially to perform image classification. Besides giving rise to nonlinear variants of the well-known support vector machine ... -
New Method for Carbohydrates Determination in Sugarcane Bagasse by HPAEC-RPAD Using Glassy Carbon Electrode Modified with Carbon Nanotubes and Nickel Nanoparticles
Cardoso de Sá, Acelino; Cristina Sedenho, Graziela ; Paim, Leonardo Lataro ; Ramos Stradiotto, Nelson (Electroanalysis, 2018) [Artigo]
Second generation ethanol can be produced from carbohydrates released from both sugarcane bagasse cell wall and sugarcane straw. The development of new method for the analysis of carbohydrates is, in this sense, seen as ...