| Acronym | Meaning |
| HELP | Hydrologic Evaluation Of Landfill Performance Model |
| CLAES | Cryogenic Limb Array Etalon Spectrometer |
| SMIDG | Submicro Inverse-detection Gradient |
| EMPT | Effective Medium Percolation Theory |
| MALS | Multi-angle Light Scattering |
| ROBK1 | Relativistic First-order Oppenheimer-Brinkman-Kramers |
| VADW | Vibrationally-adiabatic Distorted-wave Method |
| ZORA | Zeroth-order Regular Approximation |
| ERDAS | Earth Resource Data Analysis System |
| RPJ | Radio-frequency Plasma Jet |