Results 1 to 10 of about 531,970 (297)
A Definition of Vortex Vector and Vortex [PDF]
Journal of Fluid Mechanics, 2017 Vortex is ubiquitous in nature. However, there is not a consensus on the vortex definition in fluid dynamics. Lack of mathematical definition has caused considerable confusions in visualizing and understanding the coherent vortical structures in ...
Dong, Xiangrui +3 more
core +3 more sources
AI, 2023 Vehicle detection in parking areas provides the spatial and temporal utilisation of parking spaces. Parking observations are typically performed manually, limiting the temporal resolution due to the high labour cost.
Kayal Lakshmanan +9 more
doaj +1 more source
Nuclear Physics B, 2002 We show that the Abelian Higgs field equations in the four dimensional anti de Sitter spacetime have a vortex line solution. This solution, which has cylindrical symmetry in AdS$_4$, is a generalization of the flat spacetime Nielsen-Olesen string. We show that the vortex induces a deficit angle in the AdS$_4$ spacetime that is proportional to its mass ...
Dehghani, M. H. +2 more
openaire +3 more sources
Frontiers in Earth Science, 2022 Blizzard is a severe weather-related disaster with significant environmental, economic, and social impacts. What is worse, the blizzard is increasingly frequent along with climate change.
Qi Yan +7 more
doaj +1 more source
Frontiers in Oncology, 2020 Lung cancer is the leading cause of cancer-related mortality worldwide. Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) therapies, based on the evaluation of EGFR mutations, have shown dramatic clinical benefits.
Haiyan E. Liu +19 more
doaj +1 more source
WRF-LES Simulation of the Boundary Layer Turbulent Processes during the BLLAST Campaign
Atmosphere, 2020 A real case long-term nested large eddy simulation (LES) of 25-day duration is performed using the WRF-LES modelling system, with a maximum horizontal grid resolution of 111 m, in order to explore the ability of the model to reproduce the turbulence ...
Mireia Udina +4 more
doaj +1 more source
Macro-estructuras de corrupción: el caso lava jato
Rivista di studi e ricerche sulla criminalità organizzata, 2018 In this article it is developed and analyzed a social network model of a criminal organization engaged on corruption in Brazil. The model, based on judicial records published by Brazilian authorities, is referenced herein as the “Lava Jato” network.
Luis Jorge Garay Salamanca +2 more
doaj +1 more source
Numerical Comparison of Two Runners for Gravitational Vortex Turbine
Engineering Transactions, 2021 The main purpose of this study is to compare numerically the torque generated by two runners for a gravitational vortex turbine. One of the runners was an H-Darrieus turbine with the rotational flow into the chamber that helped to decrease its negative ...
Alejandro RUIZ SÁNCHEZ +3 more
doaj +1 more source
Numerical and experimental study of different geometries of expansion-contraction microchannels in particle sorting [PDF]
مجله مدل سازی در مهندسی, 2022 In this paper, a new simulation method (quasi-three-dimensional) is introduced to model devices based on inertial and Magnus forces. Simulations were computed using the COMSOL software.
Hanieh Heidari +3 more
doaj +1 more source