Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Sensors and chemical compounds sensitivity from the ‘E-Nose’_
| No. of sensors of the ‘E-Nose’ and chemical compounds sensitivity | |
|---|---|
| Sensor 1: | Aromatic compound, Alkane |
| Sensor 2: | Nitrogen oxides, Alcohols, Aromatic compounds |
| Sensor 3: | Aromatic compound, Alkane |
| Sensor 4: | Hydrogen |
| Sensor 5: | Aromatic compounds, Alkane |
| Sensor 6: | Methane, Alcohol |
| Sensor 7: | Inorganic sulfur compounds, Terpenes, Sulfur containing organic compounds, Aromatic compound |
| Sensor 8: | Alcohol, Aromatic compound |
| Sensor 9: | Aromatic compounds and inorganic sulfur compounds as H2S |
| Sensor 10: | Methane and aliphatic organic compounds |
Confusion Table; SW: Staphylococcus warneri, BS: Bacillus subtilis, PE: Penicilium expansum, AV: Apergillus versicolor, TSB: Tryptic Soy Broth, CZ: Czapek-Dox Agar
| SW (TSB) | BS (TSB) | PE, AV (CZ) | Negative (CZ) | Negative (TSB) | Empty ‘Airsampler’ | |
|---|---|---|---|---|---|---|
| Predicted as SW | 20 | 0 | 0 | 0 | 2 | 0 |
| Predicted as BS | 0 | 12 | 0 | 0 | 0 | 0 |
| Predicted as PE, AV | 0 | 0 | 7 | 0 | 0 | 0 |
| Predicted as (CZ) Negative | 0 | 0 | 1 | 2 | 2 | 0 |
| Predicted as (TSB) Negative | 0 | 2 | 0 | 0 | 2 | 9 |
| Predicted as Empty ‘Airsampler’ | 0 | 0 | 1 | 1 | 0 | 28 |
Confusion matrix; SW: Staphylococcus warneri, BS: Bacillus subtilis, PE: Penicilium expansum, AV: Apergillus versicolor, TSB: Tryptic Soy Broth, CZ: Czapek-Dox Agar
| Correctly identified positive | False positive | Correctly identified negative | False negative | |
|---|---|---|---|---|
| SW (TSB) | 0.95238 | 0.02778 | 0.97222 | 0.04762 |
| BS (TSB) | 0.85714 | 0.00000 | 1.00000 | 0.14286 |
| PE, AV (CZ) | 0.77778 | 0.00000 | 1.00000 | 0.22222 |
| Negative (CZ) | 0.66667 | 0.03333 | 0.96667 | 0.33333 |
| Negative (TSB) | 0.33333 | 0.12644 | 0.87356 | 0.66667 |
| Empty Airsampler | 0.75676 | 0.05357 | 0.94643 | 0.24324 |