| Acronym | Meaning |
| AI | Agpaitic Index [represents The (Na2O + K2O)/Al2O3 Ratio] |
| SRXPS | Spin-resolved X-ray Photoelectron Spectroscopy |
| IWEM | Institution Of Water And Environmental Management |
| STN | Scientific And Technical Information Network |
| TRXPS | Total Reflection X-ray Photoelectron Spectroscopy |
| OPAL | Optical Pumping Absorption Lidar |
| LCCO | Light Catalytic Cycle Oil |
| HOPG | Highly Oriented Pyrolytic Graphite |
| IAPA | Independent Asymptotic Pair Approxn. (in Electronic Structure) |
| LNO | Localized Natural Orbital |