Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Herrmann Hans-Jürgen"'
We study the Landau levels in curved graphene sheets by measuring the discrete energy spectrum in the presence of a magnetic field. We observe that in rippled graphene sheets, the Landau energy levels satisfy the same square root dependence on the en
Externí odkaz:
http://arxiv.org/abs/1803.01345
Publikováno v:
J. Phys. A: Math. Theor. 51 125003 (2018)
The dynamical relaxation and scaling properties of three different variants of the contact process in two spatial dimensions are analysed. Dynamical contact processes capture a variety of contagious processes such as the spreading of diseases or opin
Externí odkaz:
http://arxiv.org/abs/1802.00037
Publikováno v:
Granular Matter (2016) 18: 75
The mechanics of granular media at low liquid saturation levels remain poorly understood. Macroscopic mechanical properties are affected by microscale forces and processes, such as capillary forces, inter-particle friction, liquid flows, and particle
Externí odkaz:
http://arxiv.org/abs/1709.00205
Publikováno v:
Phys. Rev. E 95, 013110 (2017)
We develop and validate a new model to study simultaneous erosion and deposition in three-dimensional porous media. We study the changes of the porous structure induced by the deposition and erosion of matter on the solid surface and find that when b
Externí odkaz:
http://arxiv.org/abs/1609.03746
Autor:
Fuhr, Matthias Jörg, Meyer, Michael, Fehr, Eric, Ponzio, Gilles, Werner, Sabine, Herrmann, Hans Jürgen
Publikováno v:
PLoS ONE. 2015;10(2):e0117676
The skin forms an efficient barrier against the environment, and rapid cutaneous wound healing after injury is therefore essential. Healing of the uppermost layer of the skin, the epidermis, involves collective migration of keratinocytes, which requi
Externí odkaz:
http://arxiv.org/abs/1507.08602
Motivated by the observation that electrons in graphene, in the hydrodynamic regime of transport, can be treated as a two-dimensional ultra-relativistic gas with very low shear viscosity, we examine the existence of the Rayleigh-B\'enard instability
Externí odkaz:
http://arxiv.org/abs/1410.8177
Publikováno v:
Physical Review E 86, 046308 (2012)
In this paper we present a new model for modeling the diffusion and relative dispersion of particles in homogeneous isotropic turbulence. We use an Heisenberg-like Hamiltonian to incorporate spatial correlations between fluid particles, which are mod
Externí odkaz:
http://arxiv.org/abs/1205.6297
Publikováno v:
Physical Review E 86, 036321 (2012)
In this paper we numerically investigate the influence of dissipation during particle collisions in an homogeneous turbulent velocity field by coupling a discrete element method to a Lattice-Boltzmann simulation with spectral forcing. We show that ev
Externí odkaz:
http://arxiv.org/abs/1204.4985