Team:Edinburgh/modelling(reallifemodelling)

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Revision as of 18:23, 14 October 2009 by Dzonni (Talk | contribs)

Modelling - Real Life Modelling
Personal note

Since our system designed to detect landmines it was thought that we should include a visual representation of how the system would operate in real life. It is known that TNT leaks out of the landmine into the soil and we predict that the bacteria will move toward the TNT due to the chemotaxis response of the ribose binding protein which has previously computationally designed TNT receptor1
TNT and Nitrite diffusion has been modelled using a finite difference method which approximates the 2 dimensional time dependent diffusion equation below



where α is the diffusion coefficient, to a numerical solution which can be solved . By splitting the area into a grid M2 by N with a space step of h=1/M (in both the x and y directions) and time step size of k=T/N. This gives a grid of the form



which was set up as a matrix in the program.

An initial concentration of TNT in the field was then set to 107800µg/cm3 and the diffusion of TNT out from this site was calculated from the following equation,
Edinburgh University iGEM Team 2009