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Mostrando ítems 111-120 de 121
Artículo
Tackling unbalanced datasets for yellow and brown rust detection in wheat
(Frontiers, 2024-05)
This study evaluates the efficacy of hyperspectral data for detecting yellow and brown rust in wheat, employing machine learning models and the SMOTE (Synthetic Minority Oversampling Technique) augmentation technique to ...
Artículo
Role of liquid viscosity and of air entrapped on the splashing of drops impacting over superhydrophobic substrates
(American Physical Society, 2022-09)
Here we analyze the splash transition of drops of liquids with different viscosities impacting normally over different types of rough superhydrophobic substrates, finding that the velocity for the splash transition, V∗, ...
Artículo
Amplification of Supersonic Microjets by Resonant Inertial Cavitation-Bubble Pair
(American Physical Society, 2024-03)
We reveal for the first time by experiments that within a narrow parameter regime, two cavitation bubbles with identical energy generated in antiphase develop a supersonic jet. High-resolution numerical simulation shows a ...
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A Symmetry-Based Unscented Particle Filter for State Estimation of a Ballistic Vehicle
(Elsevier, 2023)
The problem of state estimation for vehicles when an initial fix is highly uncertain and/or the number of sensors is not sufficient (and changes with time) is very relevant for both aircraft and spacecraft navigation. This ...
Artículo
Evaluation and Modelling of the Coastal Geomorphological Changes of Deception Island since the 1970 Eruption and Its Involvement in Research Activity
(MDPI, 2024-01)
Deception Island is an active volcano with a submerged caldera open to the sea called Port Foster. Several post-caldera collapsed volcanic events, as well as hydrodynamics, have changed its inner coastline, shaping new ...
Artículo
Multi-agent deployment in 3-D via reaction–diffusion system with radially-varying reaction
(Elsevier, 2024-01)
This paper considers the problem of the deployment of a set of agents distributed on a disk-shaped grid onto three-dimensional (3-D) profiles, by using a continuum approximation (valid in the limit for a large number of ...
Artículo
Predicting Air Traffic Congestion under Uncertain Adverse Weather
(Multidisciplinary Digital Publishing Institute (MDPI), 2024)
This paper presents an approach for integrating uncertainty information in air traffic flow management at the tactical phase. In particular, probabilistic methodologies to predict sector demand and sector congestion under ...
Artículo
Inclined impact of drops
(Cambridge University Press, 2020-06)
Here we extend the results in Gordillo et al. (J. Fluid Mech., vol. 866, 2019, pp. 298–315), where the spreading of drops impacting perpendicularly a solid wall was analysed, to predict the time-varying flow field and the ...
Artículo
On the sea spray aerosol originated from bubble bursting jets
(Cambridge University Press, 2020)
Here we provide a theoretical framework revealing that the radius of the top droplet ejected from a bursting bubble of radius and can be expressed as for or as for , with the numerically fitted constants , , the Ohnesorge ...
Artículo
Method of mass production of monodisperse microbubbles aided by intense pressure gradients
(Wiley, 2020-10)
Here we present a method for producing noncoalescing monodisperse microbubbles in an efficient, massive and controlled way. Since our prototype is easily scalable, it can be straightforwardly adapted to satisfy the specific ...