M/U margin-to-uncertainty (ratio)
NAE National Academy of Engineering
NASA National Aeronautics and Space Administration
NNSA National Nuclear Security Administration
NRC National Research Council
NSF National Science Foundation
NWS National Weather Service
ODE ordinary differential equation
PC polynomial chaos
PDE partial differential equation
PDF probability density function
PECOS Center for Predictive Engineering and Computational Sciences
POD proper orthogonal decomposition
PSAAP Predictive Science Academic Alliance Program
QMU quantification of margins and uncertainty
QOI quantity of interest
SA sensitivity analysis; Spalart-Allmaras
SC stochastic collocation
SNL Sandia National Laboratories
SPICE Simulation Program with Integrated Circuit Emphasis
SQA software quality assurance
SSP Stockpile Stewardship Program
SUPG streamline-upwind/Petrov-Galerkin
TPM tire pressure monitoring
TPS thermal protection system
UQ uncertainty quantification
V&V verification and validation
VVUQ verification, validation, and uncertainty quantification

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