NMPC	Non-linear Model Predictive Control
SVM	Support Vector Machine
LSSVM	Least-Square SVM
GWO	Grey-Wolf Optimization
PSO	Particle Swarm Optimization
ANN	Artificial Neural Network
QP	Quadratic Programming
ABC	Artificial Bee Colony
CS	Cuckoo Search
FFA	Firefly Algorithm
BA	Bat Algorithm
FPA	Flower Pollination Algorithm
GSA	Gravitational Search Algorithm
DE	Differential Evolution
EP	Evolutionary Programming
ES	Evolution strategy
NFL	No Free Lunch
GPC	Generalized Predictive Control
NP	Non-linear Programming
KKT	Karush–Kuhn–Tucker conditions
NP	Non-linear Programming
RMSE	Root Mean Square Error
MAE	Mean Absolute Error
MAPE	Mean Absolute Percentage Error
ml	Milliliter
mm	Millimeter
rpm	Revolutions per minute
MPa	Megapascal
vvm	Volume per Unit per Minute