| Acronym | Meaning |
| HPCA | Hierarchical Principal Component Analysis |
| PEM | Parametric Equations Of Motion |
| TEAM | Thermal Energy Atomic And Molecular Beam Scattering |
| OEP-SIC | Optimized Effective Potential Self-interaction Correction |
| PSD | Pore Size Distribution |
| IEEM | Ion-electron Emission Microscopy |
| XIAES | X-ray Induced Auger Emission Spectroscopy |
| HERS | High Energy Range Spectrometer |
| OLSR | Ordinary Least Squares Regression |
| PDA | Photodiode Array |