| Acronym | Meaning |
| DAFLOW | Diffusion Analogy Flow [model] |
| ICEAS | Intermittent Cycle Extended Aeration System (activated Sludge) |
| ROM | Regional Oxidant Model |
| DSO-GF | Diagonal Second Order (approxn. To)-Green Function |
| MHA | Mott-Hubbard-Anderson (model In Band-structure Calcns.) |
| TMR | Tunneling Magnetoresistance |
| FTIR | Fourier Transform Infrared Spectroscopy |
| PTD | Photothermal Deflection |
| ECOP | Electron Correlation Polarization (potential) |
| NBOD | Nitrogenous Biochemical Oxygen Demand |