| Acronym | Meaning |
| NLP | Nonlinear Programming |
| DMRG | Density Matrix Renormalization Group (quantum Calcn. Method) |
| PBDE | Polybrominated Diphenyl Ether |
| SIV | Simian Immunodeficiency Virus |
| ERDEC | U.S. Army Edgewood Research |
| FEMP | Federal Energy Management Program |
| MARISS | Mass Resolved Ion Scattering Spectrometry |
| RSMST | Real-space Multiple-scattering Theory (in Electronic Structure) |
| PPT-MCF | Pseudo-polarization Tensor-mutually Consistent Field ( For Mol. Interactions) |
| TLM | Thermal Lens Microscopy |