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A micromechanical model of collapsing quicksand
Dirk Kadau, Jose S. Andrade, Hans J. Herrmann
The discrete element method constitutes a general class of modeling techniques to simulate the microscopic behavior (i.e. at the particle scale) of granular/soil materials. We pres…
Tricritical point in explosive percolation
Nuno A. M. Araujo, Jose S. Andrade, Robert M. Ziff +1
The suitable interpolation between classical percolation and a special variant of explosive percolation enables the explicit realization of a tricritical percolation point. With hi…
Inter-arrival times of message propagation on directed networks
Tamara Mihaljev, Lucilla de Arcangelis, Hans J. Herrmann
One of the challenges in fighting cybercrime is to understand the dynamics of message propagation on botnets, networks of infected computers used to send viruses, unsolicited comme…
Simulation of particle mixing in turbulent channel flow due to intrinsic fluid velocity fluctuation
Thomas Burgener, Dirk Kadau, Hans J. Herrmann
We combine a DEM simulation with a stochastic process to model the movement of spherical particles in a turbulent channel flow. With this model we investigate the mixing properties…
Transport on exploding percolation clusters
Jose S. Andrade, Hans J. Herrmann, Andre A. Moreira +1
We propose a simple generalization of the explosive percolation process [Achlioptas et al., Science 323, 1453 (2009)], and investigate its structural and transport properties. In t…
Protein Interaction Networks are Fragile against Random Attacks and Robust against Malicious Attacks
Christian M. Schneider, Roberto F. S. Andrade, Troy Shinbrot +1
The capacity to resist attacks from the environment is crucial to the survival of all organisms. We quantitatively analyze the susceptibility of protein interaction networks of num…