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Acoustic signal associated with the bursting of a soap film which initially closes and overpressurized cavity Experiment and theory
(2005)
We report an experimental study of the sound produced by the bursting of a thin liquid film, which initially closes an overpressurized cylindrical cavity. There is a need for a deep understanding of the phenomenon, which ...
The effect of head-fractioned teletherapy on pulp tissue
(Blackwell Scientific PublicationsPorto Alegre, 2007)
Aim To evaluate the early and delayed effects of fractioned teletherapy (radiotherapy) on the dental pulps of rats using Co60. Methodology In group 1 – rats ( n = 15) were subjected to fractioned teletherapy by 30 daily ...
Análise da geração de golfadas em escoamentos horizontais de líquido-gás utilizando CFD
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2015-11-18)
The slug flow is a pattern of gas-liquid two-phase flow very common in several industry areas, notably the oil and gas industry. This kind of flow consists in the alternation of two structures: the liquid slug and the ...
Topology of the polarization field in PbTiO3 nanoparticles of different shapes by atomic-level simulations
(American Institute of Physics, 2020-04)
An atomistic model approach parameterized from first-principles calculations is used to investigate size and shape effects on the polarization field in isolated stress-free PbTiO3 nanoparticles. The study was carried out ...
The effect of head-fractioned teletherapy on pulp tissue
(Blackwell Scientific PublicationsPorto Alegre, 2007)
Aim To evaluate the early and delayed effects of fractioned teletherapy (radiotherapy) on the dental pulps of rats using Co60. Methodology In group 1 – rats ( n = 15) were subjected to fractioned teletherapy by 30 daily ...
A Lyman-α protocluster at redshift 6.9
(2021)
Protoclusters, the progenitors of the most massive structures in the Universe, have been identified at redshifts of up to 6.6 (refs. (1-6)). Besides exploring early structure formation, searching for protoclusters at even ...
Caracterização do escoamento bifásico em golfadas utilizando redes neurais artificiais
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2016-12-14)
Gas-liquid two-phase flows are present in nature and in different industrial activities. In this type of flow, the liquid and gas phases assume different spatial configurations inside the pipe, called flow patterns. Slug ...
Estudo experimental do fenômeno da ebulição em um termossifão de vidro
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2019-12-17)
Thermosiphons are devices used to exchange heat and are more efficient than conventional heat exchangers. For the correct dimensioning of the thermosiphons, specific correlations are required for the boiling process that ...
Simulação numérica do escoamento intermitente utilizando uma metodologia híbrida baseada no acoplamento dos modelos de captura de golfadas e de seguimento de pistões
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2017-07-07)
The slug flow consists of the intermittent repetition of liquid slugs and elongated bubbles, and it is a common flow regime in oil production and nuclear industry. Even though many studies have been conducted, the understanding ...