Πλοήγηση ανά Συγγραφέα "Karakasidis, T. E."
-
Molecular dynamics simulation on flows in nano-ribbed and nano-grooved channels
Sofos, F.; Karakasidis, T. E.; Giannakopoulos, A. E.; Liakopoulos, A. (2015)We present molecular dynamics simulation results on fluid and transport properties for nanochannel flows. The upper channel wall is constructed from periodic roughness elements and flows are simulated both in longitudinal ... -
Molecular dynamics simulation study of Ni2+ adatom diffusion on the NiO (001) surface
Karakasidis, T. E.; Papageorgiou, D. G.; Evangelakis, G. A. (2001)Using molecular dynamics simulations we studied the cation adatom diffusion on the NiO(001) surface. We found that there are two equilibrium adatom positions: one over an oxygen ion, that is raised by as much as 30% at ... -
Multiscale modeling in nanomaterials science
Karakasidis, T. E.; Charitidis, C. A. (2007)Nanoscience is an area with increasing interest both in the physicochemical phenomena involved and the potential applications such as silicon carbide films, carbon nanotubes, quantum dots, MEMS etc. These materials exhibit ... -
Ni3+ adsorbate dynamics on a NiO(001) surface
Karakasidis, T. E.; Vamvakopoulos, E. (2006)We present results concerning the dynamical behavior of a Ni3+ adsorbate on a NiO(001) surface obtained by molecular dynamics simulations. In a first place, we examined at low temperature the position of the Ni3+ ion as ... -
Noise perturbation of the thermostat in constant temperature molecular dynamics simulations
Andreadis, I.; Karakasidis, T. E. (2004)In this work we study the effects of noise applied on the thermostat in the case of the constant temperature molecular dynamics simulations. We consider the cases of additive and or multiplicative noise. We then examine ... -
Nonlinear time series analysis and clustering for jet axis identification in vertical turbulent heated jets
Charakopoulos, A. K.; Karakasidis, T. E.; Papanicolaou, P. N.; Liakopoulos, A. (2014)In the present work we approach the hydrodynamic problem of discriminating the state of the turbulent fluid region as a function of the distance from the axis of a turbulent jet axis. More specifically, we analyzed temperature ... -
ON A CLOSENESS OF THE JULIA SETS OF NOISE-PERTURBED COMPLEX QUADRATIC MAPS
Andreadis, I.; Karakasidis, T. E. (2012)In the present work, we extend the results of the study of the structural stability of the Julia sets of noise-perturbed complex quadratic maps in the presence of dynamic and output noise both for the additive and the ... -
On a numerical approximation of the boundary structure and of the area of the Mandelbrot set
Andreadis, I.; Karakasidis, T. E. (2015)Based on the boundary scanning method, a partition of the boundary of the Mandelbrot set is defined. The various classes of points of the boundary according to their divergence from the interior and the exterior of the ... -
On a topological closeness of perturbed Julia sets
Andreadis, I.; Karakasidis, T. E. (2010)In the present work we expand our previous work in [1] by introducing the Julia Deviation Distance and the Julia Deviation Plot in order to study the stability of the Julia sets of noise-perturbed Mandelbrot maps. We observe ... -
On a topological closeness of perturbed Mandelbrot sets
Andreadis, I.; Karakasidis, T. E. (2010)In the present work we propose a numerical and visual tool for the study of the deformation of the Mandelbrot sets of perturbed Mandelbrot maps by noise in comparison with the original Mandelbrot set. Further, by employing ... -
On numerical approximations of the area of the generalized Mandelbrot sets
Andreadis, I.; Karakasidis, T. E. (2013)In the present work, the area of the generalized Mandelbrot sets is defined as the double limit of the areas of the plotted generalized Mandelbrot sets in a given square lattice, using the finite escape algorithm, while ... -
On perturbations of the Mandelbrot map
Argyris, J.; Andreadis, I.; Karakasidis, T. E. (2000)In this work, we propose new applications of analytic and non-analytic perturbations of the Mandelbrot map as expressed in a two-parameter deformation family of it. The influence of alternative applications of noise for ... -
On probabilistic Mandelbrot maps
Andreadis, I.; Karakasidis, T. E. (2009)In this work, we propose a definition for a probabilistic Mandelbrot map in order to extend and support the study initiated by Argyris et al. [Argyris J, Andreadis I, Karakasidis Th. On perturbations of the Mandelbrot map. ... -
On the Julia set of the perturbed Mandelbrot map
Argyris, J.; Karakasidis, T. E.; Andreadis, I. (2000)In this work, we present numerical results which support the smooth decomposition method of the generalized Julia set by Peintge et al., in the case of other perturbations of the Mandelbrot map studied in our previous work ... -
On the Julia set of the perturbed Mandelbrot map (vol 11, pg 2067, 2001)
Argyris, J.; Karakasidis, T. E.; Andreadis, I. (2001) -
On the Julia sets of a noise-perturbed Mandelbrot map
Argyris, J.; Karakasidis, T. E.; Andreadis, I. (2002)In the present work we present numerical results which support further a 2 " -type bifurcation scenario for the interior of the Fatou sets, as suggested by the smooth decomposition method introduced by Peinke, Parisi, ... -
Parallel short range molecular dynamics simulations on computer clusters: Performance evaluation and modeling
Karakasidis, T. E.; Cholevas, N. S.; Liakopoulos, A. B. (2005)This paper describes the performance of a portable molecular dynamics code running on an eight-node PC cluster. The molecular dynamics code is based on the atom decomposition method for distributing the computation load ... -
Parameters Affecting Slip Length at the Nanoscale
Sofas, F.; Karakasidis, T. E.; Liakopoulos, A. (2013)We investigate liquid flows in various nanochannels and present the effect of all physical parameters affecting slip length at the boundary using molecular dynamics simulations. Our computational model shows that slip ... -
Partitioning elements of the Periodic Table via fuzzy clustering technique
Karakasidis, T. E.; Georgiou, D. N. (2004)In this paper we present fuzzy clustering results of the elements of the Periodic Table according to several physical properties related directly to their electronic structure (ionization potential, cohesion energy, ... -
A quasi-continuum multi-scale theory for self-diffusion and fluid ordering in nanochannel flows
Giannakopoulos, A. E.; Sofos, F.; Karakasidis, T. E.; Liakopoulos, A. (2014)We present a quasi-continuum self-diffusion theory that can capture the ordering effects and the density variations that are predicted by non-equilibrium molecular dynamics (NEMD) in nanochannel flows. A number of properties ...