Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Hellén, E. K. O."'
Publikováno v:
JSTAT (2004) P09002
Two-dimensional cluster-cluster aggregation is studied when clusters move both diffusively and sediment with a size dependent velocity. Sedimentation breaks the rotational symmetry and the ensuing clusters are not self-similar fractals: the mean clus
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409229
The persistence probability, $P_C(t)$, of a cluster to remain unaggregated is studied in cluster-cluster aggregation, when the diffusion coefficient of a cluster depends on its size $s$ as $D(s) \sim s^\gamma$. In the mean-field the problem maps to t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0206139
Autor:
Hellén, E. K. O., Krug, J.
Publikováno v:
Phys. Rev. E 66, 011304 (2002).
Coarsening of sand ripples is studied in a one-dimensional stochastic model, where neighboring ripples exchange mass with algebraic rates, $\Gamma(m) \sim m^\gamma$, and ripples of zero mass are removed from the system. For $\gamma < 0$ ripples vanis
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203081
Publikováno v:
Europhys. Lett. 59, 186 (2002).
We study the probability, $P_S(t)$, of a cluster to remain intact in one-dimensional cluster-cluster aggregation when the cluster diffusion coefficient scales with size as $D(s) \sim s^\gamma$. $P_S(t)$ exhibits a stretched exponential decay for $\ga
Externí odkaz:
http://arxiv.org/abs/cond-mat/0111522
Autor:
Hellén, E. K. O., Alava, M. J.
Publikováno v:
Phys. Rev. E 66, 026120 (2002).
Persistence is considered in diffusion--limited cluster--cluster aggregation, in one dimension and when the diffusion coefficient of a cluster depends on its size $s$ as $D(s) \sim s^\gamma$. The empty and filled site persistences are defined as the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0111367
Publikováno v:
Phys. Rev. E 62, 4752 (2000).
We study the dynamic scaling properties of an aggregation model in which particles obey both diffusive and driven ballistic dynamics. The diffusion constant and the velocity of a cluster of size $s$ follow $D(s) \sim s^\gamma$ and $v(s) \sim s^\delta
Externí odkaz:
http://arxiv.org/abs/cond-mat/0007223
Publikováno v:
Journal of Applied Physics; 7/15/2006, Vol. 100 Issue 2, p023528, 6p, 1 Black and White Photograph, 1 Diagram, 10 Graphs
Publikováno v:
Europhysics Letters; 7/15/2002, Vol. 59 Issue 2, p186-192, 7p
Autor:
Jukka Ketoja, Hellén, E. K. O., Lappalainen, J., Kulachenko, A., Puisto, A., Alava, M., Penttilä, A., Lumme, K., Paavilainen, S., Róg, T., Vattulainen, I., Vidal, D., Uesaka, T.
Publikováno v:
Scopus-Elsevier
Ketoja, J, Hellén, E K O, Lappalainen, J, Kulachenko, A, Puisto, A, Alava, M, Penttilä, A, Lumme, K, Paavilainen, S, Róg, T, Vattulainen, I, Vidal, D & Uesaka, T 2010, Multi-scale modeling environment for nanocellulose applications . in International Conference on Nanotechnology for the Forest Products Industry 2010 . TAPPI Press, pp. 731-758, International Conference on Nanotechnology for the Forest Products Industry 2010, Espoo, Finland, 27/09/10 .
Ketoja, J, Hellén, E K O, Lappalainen, J, Kulachenko, A, Puisto, A, Alava, M, Penttilä, A, Lumme, K, Paavilainen, S, Róg, T, Vattulainen, I, Vidal, D & Uesaka, T 2010, Multi-scale modeling environment for nanocellulose applications . in International Conference on Nanotechnology for the Forest Products Industry 2010 . TAPPI Press, pp. 731-758, International Conference on Nanotechnology for the Forest Products Industry 2010, Espoo, Finland, 27/09/10 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7881384de0eeccc671f57b491538b218
http://www.scopus.com/inward/record.url?eid=2-s2.0-80052462778&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-80052462778&partnerID=MN8TOARS
Publikováno v:
Scopus-Elsevier
Hellén, E K O, Ketoja, J A, Niskanen, K J & Alava, M J 2002, ' Diffusion through fibre networks ', Journal of Pulp and Paper Science, vol. 28, no. 2, pp. 55-62 .
Hellén, E K O, Ketoja, J A, Niskanen, K J & Alava, M J 2002, ' Diffusion through fibre networks ', Journal of Pulp and Paper Science, vol. 28, no. 2, pp. 55-62 .
We study gas diffusion through computer-generated random fibre networks using random walk simulations. The simulation results are consistent with steady-state experiments. The comparison of the simulated time-dependent diffusion flux with one-dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::03db7afed168be40d1e5246193a38950
http://www.scopus.com/inward/record.url?eid=2-s2.0-0036472186&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0036472186&partnerID=MN8TOARS