Simulation of a model: Pyruvate production with E. coli in a fed-batch process

The aim of the project is to implement a model to simulate pyruvate production with a fed-batch
process using the E.coli strain YYC202 ldhA::Kan with the help of the coding language Python 3.8.
Concerning the model functions, we referred to the following paper:

"Modeling of the pyruvate production with Escherichia coli in a
    fed-batch bioreactor" by Zelić, B., Vasić-Rački, Đ., Wandrey, C., Takors, R.
    in 2004.
    PMID: 15085423  DOI: 10.1007/s00449-004-0358-0

To start the simulation, run "main.py". An interactive dashboard will appear where the user should input eight variables mandatory for the simulation of the process:

Parameters for the batch-simulation

1. initial biomass concentration
2. initial glucose concentration
3. initial acetate concentration
4. initial filling volume of the reactor

Parameters for the follow-up fed-batch simulation

1. volumetric flow rate of glucose
2. volumetric flow rate of acetate
3. glucose concentration of feed
4. acetate concentration of feed

Clicking the "start simulation" button, a batch process of the pyruvate production will be simulated. 
This step is necessary to determine the end of the batch process and thus, start of fed-batch. The time will be defined, when glucose
concentration is close to zero (< 0.01 g/L). At that time, the fed-batch simulation will start.

Finishing the fed-batch simulation, a figure will be plotted below the user input showing the 
concentrations of glucose, acetate, biomass and pyruvate over time. This is the end of the simulation.