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In the present work a new application of fuzzy clustering techniques is developed. The authors use this classification technique to study the magnetic losses in the induction machine stators, dividing this part of the motor in different clusters. There is a substantial difference between this fuzzy technique and the classical techniques of classification, while in the classical techniques a point...
The aim of the preset work is the estimation and analysis of magnetic losses in stator cores of inductions motors, focusing in the areas where rotational losses due to rotational flux density vector are most important. The tool presented is used in this paper to determine and analyze rotational areas in seven different commercial induction motors. The main contribution of this work is that, with the...
The aim of the present work is to shed some light on the surface atomic structure of an Fe/Mn-promoted sulfated zirconia catalyst using high-resolution transmission electron microscopy (HRTEM) imaging. The presence of Fe and Mn species, which were found to be dispersed at a molecular level, were apparent on the {001} and {110} surfaces of zirconia particles. A combination of the present results with...
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