Cellular-automata-based ecological and ecohydraulics modelling

Cellular-automata-based ecological and ecohydraulics modelling

Qiuwen Chen Fei Ye Weifeng Li (corresponding author) Research Centre for Eco-Environmental Sciences, Chinese Academy of Science, Shuangqing Road 18, Haidian District, Beijing 100085, China Tel.:/Fax: +86 10 6284 9311 E-mail: [email protected] Spatially lumped models may fail to take into account the effects of spatial heterogeneity and local interactions. These properties sometimes are crucial ...

Unstructured Cellular Automata in Ecohydraulics Modelling

Event-based modelling of ecological systems with asynchronous cellular automata

In this article, we give an example for the modelling of ecological systems with cellular automata based on the description of cell's behaviour by Petri nets. Petri nets ooer a formal modelling technique with event{based, concurrent, asynchronous state changes where graphical symbols are used for the description of states resp. state changes. This allows the formal description of cellular autom...

Modelling Biofilms with Cellular Automata

For an integrated nitrification-denitrification processes, nitrite formation in the aerobic stage leads to big savings. Recently experimental observations (Garrido et al., 1996) have shown that it is possible to obtain full ammonium conversion with approximately 50 % nitrate and 50 % nitrite in the effluent of a biofilm airlift suspension reactor. With oxygen concentrations between 1 and 2 mg/l...

Mining Ecological Data with Cellular Automata

This paper introduces a Cellular Automata (CA) approach to spatiotemporal data mining (STDM). The recently increasing interest in using Genetic Algorithms and other evolutionary techniques to identify CA model parameters has been mainly focused on performing artificial computational tasks such as density classification. This work investigates the potential to extend this research to spatial and...