| Acronym | Meaning |
| LCPLS | Logcontrast Partial Least Squares |
| UAPSP | Utility Acid Precipitation Study Program |
| MCQDPT2 | Second-order Multiconfigurational Quasi-degenerate Perturbation |
| FOPPA | First-order Polarization Propagator Approach |
| TCC | Thermal Contact Cracking |
| RPSA | Rapid Pressure Swing Adsorption |
| HEM | Human Exposure Model |
| RNN | Recurrent Neural Network |
| BWO | Backward Wave Oscillator |
| FLMS | Femtosecond Laser Mass Spectrometry |