Results 1 to 10 of about 777,778 (215)
Sensitivity to initial conditions in coherent noise models [PDF]
The European Physical Journal B, 2005 Sensitivity to initial conditions in the coherent noise model of biological evolution, introduced by Newman, is studied by making use of damage spreading technique. A power-law behavior has been observed, the associated exponent $α$ and the dynamical exponent $z$ are calculated. Using these values a clear data collapse has been obtained.
Ergun, E, Tirnakli, U
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Sensitivity of the frog model to initial conditions
Electronic Communications in Probability, 2019 The frog model is an interacting particle system on a graph. Active particles perform independent simple random walks, while sleeping particles remain inert until visited by an active particle. Some number of sleeping particles are placed at each site sampled independently from a certain distribution, and then one particle is activated to begin the ...
Johnson, Tobias, Rolla, Leonardo T.
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Bioclogging in porous media: Model development and sensitivity to initial conditions [PDF]
Environmental Modelling & Software, 2009 This work presents a numerical model able to simulate the effect of biomass growth on the hydraulic properties of saturated porous media, i.e., bioclogging. A new module for an existing coupled flow and reactive-transport code-PHWAT-was implemented. Laboratory experiments were used to validate the model.
Alessandro Brovelli +2 more
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On the sensitivity of a regional Arctic climate model to initial and boundary conditions [PDF]
Climate Research, 2000 The sensitivity of Arctic atmospheric simulations to initial and boundary conditions was investigated with the high horizontal resolution regional climate model HIRHAM driven by observa- tional data analyses at the lateral and lower boundaries. Investigation of the constraint of the synoptic- scale flow in the specific circumpolar Arctic domain showed ...
A Rinke, K Dethloff
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Sensitivity to Initial Conditions in an Extended Activator--Inhibitor Model for the Formation of Patterns [PDF]
Acta Physica Polonica B, 2018 Despite simplicity, the synchronous cellular automaton [D.A. Young, Math. Biosci. 72, 51 (1984)] enables reconstructing basic features of patterns of skin. Our extended model allows studying the formatting of patterns and their temporal evolution also on the favourable and hostile environments.
Ryszard Piasecki +2 more
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Space Matters: Extending Sensitivity Analysis to Initial Spatial Conditions in Geosimulation Models [PDF]
Journal of Artificial Societies and Social Simulation, 2019 Although simulation models of geographical systems in general and agent-based models in particular represent a fantastic opportunity to explore socio-spatial behaviours and to test a variety of scenarios for public policy, the validity of generative models is uncertain unless their results are proven robust and representative of 'real-world' conditions.
Raimbault, Juste +4 more
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Evaluation of the Sensitivity of Medicane Ianos to Model Microphysics and Initial Conditions Using Satellite Measurements [PDF]
Remote Sensing, 2021 Tropical-like cyclone (TLC or medicane) Ianos formed during mid-September 2020 over the Southern Mediterranean Sea, and, during its mature stage on days 17–18, it affected southern Italy and especially Greece and its Ionian islands, where it brought widespread disruption due to torrential rainfall, severe wind gusts, and landslides, causing casualties.
Comellas Prat, Albert +5 more
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Eos, Transactions American Geophysical Union, 1992 A well‐known approach to studying the impact of greenhouse gases on climate is computer‐simulated general circulation models (GCMs) that integrate current understanding of the various factors influencing climate through a comprehensive mathematical model.
H. L. Gray, Wayne A. Woodward
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DAMAGE SPREADING IN THE BAK–SNEPPEN MODEL: SENSITIVITY TO THE INITIAL CONDITIONS AND EQUILIBRATION DYNAMICS [PDF]
International Journal of Modern Physics C, 2003 The short-time and long-time dynamics of the Bak–Sneppen model of biological evolution are investigated using the damage spreading technique. By defining a proper Hamming distance measure, we are able to make it exhibit an initial power-law growth which, for finite size systems, is followed by a decay towards equilibrium.
Tirnakli, U, Lyra, ML
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Classical infinite-range-interaction Heisenberg ferromagnetic model: Metastability and sensitivity to initial conditions [PDF]
Physical Review E, 2003 A N-sized inertial classical Heisenberg ferromagnet, which consists in a modification of the well-known standard model, where the spins are replaced by classical rotators, is studied in the limit of infinite-range interactions. The usual canonical-ensemble mean-field solution of the inertial classical $n$-vector ferromagnet (for which $n=3$ recovers ...
Nobre, Fernando D., Tsallis, Constantino
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