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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Pressure drop in the tip of the needle (Δpneedle tip) as a function of temperature and dynamic viscosity of the material. The normal distribution of the model was verified for each group using the Kolmogorov-Smirnov test. The adjusted R-square (R-sq (adj)) for the model was 0.941.