| Acronym | Meaning |
| T-J MODEL | Heisenberg-Hubbard Model (Hamiltonian) |
| RCM | Rotated-coordinate Method |
| RAS | Returned Activated Sludge |
| DOP | Dissolved Organic Phosphorus |
| FACT | Fuel And Combustion Technology |
| TIME | Transferred Ionized Molten Energy Process (for Metal Arc Welding) |
| MINI-N | Minimal-type Contracted Gto Basis Set (n= 1 |
| MESNA | Sodium 2-mercaptoethane Sulfonate |
| ECP | Exchange Coupled Pair |
| LAPS | Light-Addressable Potentiometric Sensor |