Search Results - "Cerqueira, Rafael"

Development of a deep learning-based image processing technique for bubble pattern recognition and shape reconstruction in dense bubbly flows by Cerqueira, Rafael F.L., Paladino, Emilio E.

“…•Novel CNN-based bubble identification algorithm.•Bubbles detection in images with high bubble overlapping.•Accurate determination of bubbles velocities and…”
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Experimental study of the flow structure around Taylor bubbles in the presence of dispersed bubbles by Cerqueira, Rafael F.L., Paladino, Emilio E.

“…•Experimental observation of the interaction between large and small bubbles.•New insights for influence of dispersed bubbles on rising velocity of Taylor…”
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Multiscale modeling and validation of the flow around Taylor bubbles surrounded with small dispersed bubbles using a coupled VOF-DBM approach by Cerqueira, Rafael F.L., Paladino, Emilio E., Evrard, Fabien, Denner, Fabian, Wachem, Berend van

“…•CFD model for gas-liquid flows with different interface length scales is presented.•The model is based on VOF for large interfaces and Lagrangian approach for…”
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Detecting flooding state in extraction columns: Convolutional neural networks vs. a white‐box approach for image‐based soft sensor development by Bayomie, Omar S., de Cerqueira, Rafael F. L., Neuendorf, Laura, Kornijez, Iwan, Kieling, Samuel, Sandermann, Tim H., Lammers, Keno, Kockmann, Norbert

“…•ML models are tested as a monitoring tool in a liquid-liquid extraction column.•The ML models can produce accurate results with minimal computational…”
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Development and assessment of a particle tracking velocimetry (PTV) measurement technique for the experimental investigation of oil drops behaviour in dispersed oil–water two-phase flow within a centrifugal pump impeller by de Cerqueira, Rafael F.L., Perissinotto, Rodolfo Marcilli, Verde, William Monte, Biazussi, Jorge Luiz, de Castro, Marcelo Souza, Bannwart, Antonio Carlos

“…The objective of the current work is to present the development of a Particle Tracking Velocimetry (PTV) algorithm for the analysis of oil drops behaviour in…”
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Long-term monitoring of the behavior of a talus-colluvium deposit by Ehrlich, Mauricio, da Costa, Douglas Pereira, Silva, Rafael Cerqueira

“…This article describes the behavior of a talus-colluvium deposit up to 70-m thick located in the Serra dos Orgaos, Rio de Janeiro/RJ, Brazil. The monitoring…”
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Particle image velocimetry in the impeller of a centrifugal pump: Relationship between turbulent flow and energy loss by Fonseca, William D.P., Perissinotto, Rodolfo M., Cerqueira, Rafael F.L., Verde, William Monte, Castro, Marcelo S., Franklin, Erick M.

“…Turbulent flows play a dominant role in the operation of centrifugal pumps, which find widespread use in industrial settings and various aspects of human life…”
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Experimental apparatus and flow instrumentation for the investigation of a quasi-real slug flows in vertical ducts by de Cerqueira, Rafael F.L., Paladino, Emilio E., Brito, Ronei M., Maliska, Clovis R., Meneghini, Cristiano

“…•Novel experimental techniques for the study of quase-real slug flows presented.•High inverse viscosity numbers and presence of dispersed bubbles in liquid…”
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Particle image velocimetry in a centrifugal pump: Details of the fluid flow at different operation conditions by Perissinotto, Rodolfo M., Cerqueira, Rafael F.L., Fonseca, William D.P., Monte Verde, William, Biazussi, Jorge L., Bannwart, Antonio Carlos, Franklin, Erick M., Castro, Marcelo S.

“…Centrifugal pumps are present in the daily life of human beings. They are essential to several industrial processes that transport single- and multi-phase…”
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Particle image velocimetry in the impeller of a centrifugal pump: A POD-based analysis by Fonseca, William D.P., Cerqueira, Rafael F.L., Perissinotto, Rodolfo M., Monte Verde, William, Castro, Marcelo S., Franklin, Erick M.

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Behavior of a colluvial slope located in Southeastern Brazil by Ehrlich, Mauricio, da Costa, Douglas Pereira, Silva, Rafael Cerqueira

“…Colluvial deposits are commonly found throughout the Serra do Mar escarpment in Brazil. This article discusses predisposing geotechnical and geological factors…”
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Strategies to extend the shelf life of sheep and goat cheese whey under refrigeration: Nisin, bioprotective culture, and acidification by dos Santos, Fabio Ribeiro, Martins Filho, Cesar Melo, de Cerqueira, Rafael F.L., Yada, Rickey Y., Augusto, Pedro Esteves Duarte, Leite Junior, Bruno Ricardo de Castro, Tribst, Alline Artigiani Lima

“…The valorization of sheep and goat cheese whey are important from economic, social and environmental perspectives. However, their low microbiological and…”
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Analysis of energy losses and head produced by a radial impeller using particle image velocimetry by Perissinotto, Rodolfo M., de Cerqueira, Rafael F. L., Monte Verde, William, Fonseca, William D. P., Franklin, Erick M., de Castro, Marcelo S.

“…Centrifugal pumps play a crucial role in industrial operations involving fluid transport. The quest for optimizing efficiency and reducing energy usage is a…”
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Complete mitochondrial genome sequence of the high altitude Brazilian treefrog Pithecopus megacephalus (Anura, Phyllomedusidae) by Lima, Nathália Gonçalves da Silva, Carmo, Anderson Oliveira do, Souza, Rafael Cerqueira Castro de, Kalapothakis, Evanguedes, Eterovick, Paula Cabral

“…The first complete mitochondrial genome (mtDNA) for the family Phyllomedusidae (genus Pithecopus) is presented. It is a circular molecule with 17713 pb…”
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Complete mitochondrial genome sequence of the high-altitude Brazilian tree frog Bokermannohyla alvarengai (Anura, Hylidae) by Lima, Nathália Gonçalves da Silva, Carmo, Anderson Oliveira do, Martins, Ana Paula Vimieiro, Souza, Rafael Cerqueira Castro de, Kalapothakis, Evanguedes, Eterovick, Paula Cabral

“…The first complete mitochondrial genome (mtDNA) for the genus Bokermannohyla (Hylidae) is presented. The mtDNA contains 17,325 bp and is similar in size, gene…”
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Theoretical and experimental analysis of multiphase twin-screw pumps operating in serial arrangement by Paladino, Emilio E., de Cerqueira, Rafael F.L., Weise, Josiane, Lavoratti, Thales C., Caetano, Elisio F.

“…Twin-screw boosting technology has shown a versatile and reliable performance for a wide range of gas fractions at inlet streams. However, the use of positive…”
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Reflexividade do sensível e do cuidado à família no contexto da saúde mental [Reflexivity of the sensitive and family care in the context of mental health] [Reflexividad de lo sensible y de la atención familiar en el contexto de la salud mental] by Carvalho, Patricia Anjos Lima de, Santos, Vanessa Thamyris Carvalho dos, Soares, Ricardo Henrique, Oliveira, Márcia Aparecida Ferreira de, Fornasier, Rafael Cerqueira, Sena, Edite Lago da Silva

“…Objetivo: descrever a experiência de famílias que vivenciam o sofrimento mental em dispositivos existenciais presentes no território. Métodos: estudo…”
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EDUCAÇÃO NO ENSINO SUPERIOR EM TEMPOS DE PANDEMIA by B. R. S. de CERQUEIRA, Bruno Rafael Santos de Cerqueira

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Behavior of a 31m high excavation supported by anchoring and nailing in residual soil of gneiss by Ehrlich, Maurício, Silva, Rafael Cerqueira

“…A 31m high excavation located at Niterói/RJ in residual soil from gneissmigmatite with high NSPT (>40) was performed for a building construction. Two levels of…”
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O mural virtual como recurso para aprendizagem colaborativa em tempos de aulas remotas no ensino superior by Cerqueira, Bruno Rafael Santos de

“…Em tempos de pandemia de COVID-19, todos os níveis de ensino precisaram buscar as melhores estratégias para lidar com a continuidade da educação formal no…”
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