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Mostrando ítems 1-20 de 227

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A Closer Look at the Brazilian Social Fuel Seal: Uptake, Operation and Dysfunctions

Planchez De Carvalho-Marcossi, Gisele; Moreno-Pérez, Olga M. (Taylor & Francis, 2018)

[EN] The Brazilian government created the Social Fuel Seal (SFS) within the framework of the National Program of Production and Use of Biodiesel (PNPB) launched in 2004. The SFS is a certification standard aimed at upgrading ...
A green coffee based product and its comparasion to commercial products regarding the antioxidant capacity

Souza, F.; Souza, E.; Pontes, S.; Leal Junior, W.; Freitas-Silva, O.; Nogueira, R. (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Green Coffee Products (GCP) consumption have been increased recently and is justified due its benefits to human health, as the antioxidant activity and thermogenic properties and ant mutagenic and ant carcinogenic ...
A GRU deep learning system against attacks in software defined networks

Assis, Marcos V.O.; Carvalho, Luiz F.; Lloret, Jaime; Proença Jr, Mario L. (Elsevier, 2021-03-01)

[EN] The management of modern network environments is becoming more and more complex due to new requirements of devices' heterogeneity regarding the popularization of the Internet of Things (IoT), as well as the dynamic ...
A Lamellar MWW Zeolite With Silicon and Niobium Oxide Pillars: A Catalyst for the Oxidation of Volatile Organic Compounds

Schwanke, Anderson Joel; Balzer, Rosana; Lopes, Christian Wittee; Meira, Debora Motta; DÍAZ MORALES, URBANO MANUEL; Corma Canós, Avelino; Pergher, Sibele (John Wiley & Sons, 2020-08-17)

[EN] In this work, an MWW-type zeolite with pillars containing silicon and niobium oxide was synthesized to obtain a hierarchical zeolite. The effect of niobium insertion in the pillaring process was determined by combining ...
A new species of Brevipalpus (Acari: Tenuipalpidae) from the Azores Islands, with remarks on the B. cuneatus species group

Dos Santos Alves, Jorge Laerson; Ferragut Pérez, Francisco José; Mendonça, Renata Santos; Tassi, Aline Daniele; Navia, Denise (Systematic and Applied Acarology Society, 2019-11)

[EN] Brevipalpus contains about 290 species, some of which are considered of economic importance. In spite of their agricultural importance, the species diversity is scarcely known in several regions around the world, ...
A new waterborne chitosan-based polyurethane hydrogel as a vehicle to transplant bone marrow mesenchymal cells improved wound healing of ulcers in a diabetic rat model

Viezzer, Christian; Mazzuca, Rafael; Machado, Denise Cantarelli; Forte, María Magdalena de Camargo; Gómez Ribelles, José Luís (Elsevier, 2020-03-01)

[EN] Foot ulcers, a common complication of diabetes, can cause physical incapacity and are derived from several factors, including poor wound healing. New therapeutic strategies are needed to minimize this complication for ...
A photochemical and theoretical study of the triplet reactivity of furano- and pyrano-1,4-naphthoquionones towards tyrosine and tryptophan derivatives

Teixeira, Rodolfo I.; Goulart, Juliana S.; Correa, Rodrigo J.; Garden, Simon J.; Ferreira, Sabrina B.; Netto-Ferreira, Jose Carlos; Ferreira, Vitor F.; Miro, Paula; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel; De Lucas, Nanci C. (The Royal Society of Chemistry, 2019)

[EN] The photochemical reactivity of the triplet state of pyrano- and furano-1,4-naphthoquinone derivatives ( 1 and 2) has been examined employing nanosecond laser flash photolysis. The quinone triplets were efficiently ...
A robust handwritten recognition system for learning on different data restriction scenarios

de Sousa Neto, Arthur Flor; Bezerra, Byron Leite Dantas; Toselli, Alejandro Héctor; Lima, Estanislau Baptista (Elsevier, 2022-07)

[EN] Handwritten Text Recognition (HTR) systems have gained interest in fields of academic research and commercial applications. Deep learning techniques, and more precisely Convolutional Neural Networks (CNNs), have enabled ...
A simheuristic algorithm for the stochastic permutation flow-shop problem with delivery dates and cumulative payoffs

Villarinho, Pedro A.; Panadero, Javier; Pessoa, Luciana S.; Juan, Angel A.; Oliveira, Fernando L. Cyrino (Blackwell Publishing, 2021-03)

[EN] This paper analyzes the permutation flow-shop problem with delivery dates and cumulative payoffs (whenever these dates are met) under uncertainty conditions. In particular, the paper considers the realistic situation ...
A Statistical Learning Reputation System for Opportunistic Networks

Soares, Diogo; Mota, Edjair; Souza, Camilo; Manzoni, Pietro; Cano Escribá, Juan Carlos; Tavares de Araujo Cesariny Calafate, Carlos Miguel (IEEE, 2014-11)

Contacts are essential to guarantee the performance of opportunistic networks, but due to resource constraints, some nodes may not cooperate. In reputation systems, the perception of an agent depends on past observations ...
A three-stage chemical cleaning of ion-exchange membranes used in the treatment by electrodialysis of wastewaters generated in brass electroplating industries

Santana Barros, Kayo; Martí Calatayud, Manuel César; Pérez-Herranz, Valentín; Espinosa, Denise Crocce Romano (Elsevier, 2020-10-15)

[EN] After long-term electrodialysis, cleaning the membranes is crucial to extend their lifetime. In this work, we evaluate the effects of a three-stage chemical cleaning on electrochemical and structural properties of ...
A world panorama of bruxism in children and adolescents with emphasis on associated sleep features: A bibliometric analysis

Ribeiro-Lages, Mariana Batista; Jural, Lucas Alves; Barauna Magno, Marcela; Vicente Gomila, José Miguel; Masterson Ferreira, Daniele; Fonseca-Goncalves, Andrea; Cople Maia, Lucianne (Blackwell Publishing, 2021-11)

[EN] Background and Objectives To present a world panorama of the published papers on bruxism in children and adolescents, emphasising the characteristics of studies related to the sleep features of these patients. Methods ...
Acoustic fields of acid suspensions containing cassava bagasse: Influence of physical properties on acoustic attenuation

Carregari-Polachini, Tiago; Mulet Pons, Antonio; Telis-Romero, Javier; Carcel, Juan A. (Elsevier, 2021-06)

[EN] The effects produced by high-intensity ultrasound application during the acid pretreatment of biomass can enhance its later conversion into bioethanol. Therefore, it is interesting to evaluate how residues,such as ...
Adición de un Paso de Fusión de Datos al Algoritmo de Mínimos Cuadrados Clásico para Mejorar la Estima del Campo de Flujo Óptico

Soria, Carlos M.; Sarcinelli Filho, Mario; Carelli, Ricardo (Universitat Politècnica de València, 2013-07-09)

[ES] En este artículo se propone una versión mejorada del método clásico basado en el criterio de mínimos cuadrados para estimar el campo de flujo óptico. La esencia de la propuesta es fusionar algunas estimas de un mismo ...
AgY zeolite as catalyst for the selective catalytic oxidation of NH3

Martinez-Ortigosa, Joaquin; Lopes, Christian W.; Agostini, Giovanni; Palomares Gimeno, Antonio Eduardo; Blasco Lanzuela, Teresa; Rey Garcia, Fernando (Elsevier, 2021-08)

[EN] Ag-exchanged Y zeolites (Si/Al = 2.5; Ag/Al = 0.30-0.95) have been tested in the NH3-SCO reaction, the most promising method for the elimination of ammonia emissions, and deeply characterized before and after reaction ...
Al2O3-3YTZP-Graphene multilayers produced by tape casting and spark plasma sintering

Rincón, Acacio; Moreno, Rodrigo; Chinelatto, Adriana S. A.; Gutierrez-Gonzalez, Carlos F.; Rayón Encinas, Emilio; Salvador Moya, Mª Dolores; Borrell Tomás, María Amparo (Elsevier, 2014-09)

This work aims to establish a colloidal route to obtain laminates of alumina zirconia combining layers with and without graphene. Green tapes of alumina, alumina with 5 vol.% of 3Y-TZP and alumina with 5 vol.% of 3Y-TZP ...
Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions

Carpio-Cobo, Pablo; Salvador Moya, Mª Dolores; Borrell Tomás, María Amparo; Sanchez Vilches, Enrique; Moreno, Rodrigo (Elsevier, 2016)

[EN] Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhib- it improved properties. However, the key to obtain coatings with superior functional properties relies on ...
Ammonium Toxicity Alleviation by Silicon is Dependent on Cytokinins in Tomato cv. Micro-Tom

Ferreira Barreto, Rafael; de Mello Prado, Renato; Barbosa Lucio, Jose Clebson; LOPEZ DIAZ, ISABEL; Carrera, Esther; Falleiros Carvalho, Rogerio (Springer-Verlag, 2022-01)

[EN] The objectives were to verify the effects of the lack of cytokinins (CKs), comparing tomato cv. Micro-Tom (MT, wild type) to MT CKX2 (transgenic with less CKs) fed with nitrate (NO3-) and ammonium (NH4+), in the ...
An electrochemical Study of Phenol Oxidation in Acidic Medium

Xavier, J.L.N.; Ortega Navarro, Emma María; Ferreira, J.Z.; Bernardes, A.M.; Pérez-Herranz, Valentín (Electrochemical Science Group, 2011-03-01)

[EN] This work addresses the electrooxidation of phenol on platinum electrodes applying cyclic voltametry. The effect of different parameters on the electrooxidation of phenol, such as the scan rate, the inversion potential, ...
An in situ XAS study of the activation of precursor-dependent Pd nanoparticles

Wittee Lopes, Christian; Cerrillo, José Luis; Palomares Gimeno, Antonio Eduardo; Rey Garcia, Fernando; Agostini, G. (The Royal Society of Chemistry, 2018-05-14)

[EN] The activation of precursor-dependent Pd nanoparticles was comprehensively followed by in situ X-ray absorption spectroscopy on two inorganic supports for rationalizing the final catalytic activity. Two series of ...