| Acronym | Meaning |
| SCC | Sludge Conditioning Controller |
| FRC | Frozen Core Approxn. |
| DIHEN | Direct Injection High Efficiency Nebulizer |
| SAES | State Agricultural Experiment Stations |
| GCTE | Global Change And Terrestrial Ecosystems |
| IPPP | Iterative Pariser-Parr-Pople Method |
| CCPD | Charge-coupled Photodiode Device |
| LCMVAO | Linear Combination Of Modified Valence Atomic Orbital |
| CIT | Cylindrical Ion Trap |
| ASTIS | Arctic Science And Technology Information System |