Table 1 |
||
| Coefficients obtained by the ANN and LSM algorithms for an EFM system | ||
| Coefficients | ANN | LSM |
| qi | ||
| q1 | −0.26 | 417.40 |
| q2 | 1.75 | −2.31 |
| q3 | −1.54 | 2.43 |
| q4 | 0.98 | −0.82 |
| Li | ||
| L1 | −0.032 | −12,582.71 |
| L2 | −0.15 | 2,194.47 |
| L3 | −0.30 | −157.42 |
| L4 | 0.90 | 5.51 |
| L5 | 0.41 | 0.015 |
| L6 | 0.13 | 0.48 |
| L7 | 1.32 | −0.39 |
| L8 | −7.31 | 26.26 |
| L9 | 10.16 | −445.25 |
| L10 | 11.51 | 3,126.11 |
| L11 | 7.75 | −9,298.52 |
| L12 | 4.42 | 9,311.48 |
L = 10 R, θ = 20°, D = 0.1 R, and ϵ = 10. qi and Li correspond to punctual charges and charged segments inside the tip, respectively.
Castellano-Hernández et al. Nanoscale Research Letters 2012 7:250 doi:10.1186/1556-276X-7-250
