# Batch Immigration-Death

## dsmts-004-01

This model has a single species X and has two reactions with mass-action kinetics. The batch immigration reaction is 0 → 5 X with rate parameter Alpha = 1. The death reaction is X → 0 with rate parameter Mu = 0.2. Use the open button in the tool bar to import the file `examples/sbml/dsmts31/dsmts-004-01.xml`. The model is imported correctly and the reactions are recognized as having mass-action kinetics. Below is the plot of the mean and standard deviation of the species population calculated from 10,000 trajectories.

## dsmts-004-02

This model is the same as dsmts-004-01, except that the immigration reaction is 0 → 10 X and the rate parameter Mu is changed to 0.4.

## dsmts-004-03

This model is the same as dsmts-004-01, except that the immigration reaction is 0 → 100 X and the rate parameter Mu is changed to 4.