SEARCH Articles Figures Tables Examples of first normal-stress differences First Normal Stress Function First normal stress coefficient defined First normal stress coefficient from viscosity data First normal stress difference First normal stress difference negative values First normal stress growth coefficient First normal-stress coefficient Negative first normal stress differences Non-Newtonian shear viscosity and first normal stress coefficient of polymer melts Normal stress Normal-stress coefficients difference, first Parameters Influencing the First Normal Stress Difference Zero-shear first normal stress coefficient