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Development of a computer vision image recognition tool for underwater wet welding
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2022-07-22)
The focus of this work is to analyze the dynamics of the bubbles resulting from the welding
process, on the effect of different formulations of coated electrodes, in both polarities and
varying the welding current. The ...
Dynamics of soap bubble bursting and its implications to volcano acoustics
(2010-04-14)
In order to assess the physical mechanisms at stake
when giant gas bubbles burst at the top of a
magma conduit, laboratory experiments have been
performed. An overpressurized gas cavity is initially
closed by a thin ...
Dynamics of charged bubbles in general relativity and models of particles
(1988)
The dynamics of extended models of charged particles considered as sources of the Reissner-Nordström geometry is analyzed. They consist of spherical bubbles with electric charge and surface tension. Equations of motion for ...
Interaction of particles with a cavitation bubble near a solid wall
(AIP Publishing, 2018)
Hard particle erosion and cavitation damage are two main wear problems that can affect the internal components of hydraulic machinery such as hydraulic turbines or pumps. If both problems synergistically act together, the ...
SPACE-TIME DEFECTS
(Amer Inst PhysicsWoodbury, 1995)
Is there a price bubble in the exchange rates of the developing countries? The case of BRICS and Turkey
(Universidad ESAN. ESAN EdicionesPE, 2022-12-28)
Purpose: The last decades have experienced increasingly integrated global political and economic dynamics ranging especially from the influence of exchange rates and trade amid other sources of uncertainties. The purpose ...
Surface damage caused by the interaction of particles and a spark-generated bubble near a solid wall
(Elsevier, 2019-11-15)
Machine components operating in a fluid under conditions of cavitation and hard particle erosion can be severely affected by wear, which may reduce the lifespans of the components. To understand this synergic behaviour, ...
Exploration by Shake-the-Box technique of the 3D perturbation induced by a bubble rising in a thin-gap cell
(Springer, 2021-01)
Abstract: From Lagrangian measurements using the Shake-the-Box technique (Schanz et al. in Exp Fluids 57(5):70, 2016) we investigate the velocity field about a single bubble rising in a thin-gap cell and we discuss it in ...
HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
(EDP Sciences, 2005-12)
We analyze the interstellar medium in the environs of two hot and massive stars, HD 92809 (= WR 23, WC6) and LSS 1887 (O8V), which ionize the optical ring nebulae Anon(WR 23) and RCW 52, respectively. Our analysis is based ...
Discrete axial motion of a radioactive tracer reconstructed from the response of axially aligned detectors: Application to the analysis of a bubble column dynamics
(Elsevier, 2013-03)
The feasibility of extracting relevant dynamic information of a bubble column from the approximate reconstruction of a radioactive tracer axial trajectory using a set of axially aligned detectors (AAD) is explored. The ...