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Old December 1st, 2008, 05:02 AM
shawsend shawsend is offline
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Hey is this it:

M(t)=Mo-C_1\sum _{n=0}^{1000} k R^2 t \left(\pi ^2 d n^2+k R^2\right)-\frac{\pi ^2 D n^2 R^2 \exp \left(-\frac{t \left(\pi ^2 D n^2+k R^2\right)}{R^2}\right)}{\left(\pi ^2 D n^2+k R^2\right)^2}-\pi ^2 D n^2 R^2

C_1=\pi  8 D \text{Ms} R (\text{Mo}-\text{Ms})

Ms=140,\; Mo=11.58,\;R=0.004

with D and k to be determined by the fit?
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Last edited by shawsend; December 1st, 2008 at 05:15 AM.
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