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Redefining the role of obstacles in pedestrian evacuation
(IOP Publishing, 2018-12)
The placement of obstacles in front of doors is believed to be an effective strategy to increase the flow of pedestrians, hence improving the evacuation process. Since it was first suggested, this counterintuitive feature ...
Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
(Versita, 2012-06)
The effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium ...
Los pársecs más internos de las galaxias activas /
(2010-12)
Los núcleos activos de galaxias o AGNs son considerados los objetos más luminosos del Universo. Estos emiten cantidades importantes de energía a lo largo de todo el espectro electromagnético, la cual es capaz de superar ...
Simultaneous K and L-band spectroscopy of Be stars: circumstellar envelope properties from hydrogen emission lines
(Iop Publishing, 2010-04)
We present medium-resolution K- and L-band spectra of a sample of eight Be stars, obtained with Gemini/ NIRI. The IR K and L bands contain many lines of different hydrogen series that are used as a diagnosis to the physical ...