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more System dynamics is a methodology to model and simulate complexity in science and engineering.In this approach there are limited mathematical descriptions due to a large time in the behavior and a non-mathematical definition of the relationships between variables of the phenomena.
As well as the qualitative behavior of the stellar mass, molecular gas density and intergalactic gas density for the galactic evolution model.
Therefore we concluded that System Dynamics is a powerful tool for modelling complex phenomena with feedback in Astrophysics.
We introduce a more expressive variant of branching ratio called partial formation rate.
With these we are capable of determining the characteristic neutron density values.
The computational model is almost the only way to look into the details.
There is a simple full network computer model for neutron capture nucleosynthesis [2,3] which was made strictly following Käppeler .Nearly sixty years after BBFH , it is very important to re-investigate neutron capture processes.Since 1957 everybody has spoken about s-process and r-process, but how are these processes realized in fact? more Nearly sixty years after BBFH , it is very important to re-investigate neutron capture processes.This is only possible when two stable nuclei are separated by an unstable nucleus.At these places we investigated the neutron density required for equilibrium nucleosynthesis both isotopically and isotonically at temperatures of AGB interpulse and thermal pulse phases.In this work the nuclei are identified by (Z, N), which allows reading out new information from the measured abundances.We are interested in the neutron density required to reproduce the measured abundance of nuclei assuming equilibrium processes.Since 1957 everybody has spoken about s-process and r-process, but how are these processes realized in fact?Do s-path and r-path exist, or these are only two useful approximations? How does the formation of nuclei occur starting from seed nucleus Fe-26 ?In this work the nuclei are identified by (Z, N), which allows...more Heavy elements are formed in nucleosynthesis processes.