C Haţiegan

TL;DR: In this article, a comparative analysis of seven Central and Eastern European stock markets using recent financial data up to August 2018 by employing seasonal and trend decompositions before applying multifractal detrended fluctuation analysis is presented.

TL;DR: In this paper, the authors presented the modeling and simulation of the thermal analysis on the hydrogenerator stator winding with high voltage of 11kV and compared the results with measurement values.

TL;DR: In this paper, the influence of the thermal field on X60 carbon steel components during welding in CO 2 environment given that the heat source (electric arc) moves was studied through ANSYS software for modeling and simulation of welded components.

TL;DR: In this article, the authors presented the modeling and simulation of the thermal transfer in the transformers from the high electric voltage stations using finite element method, which is based on the creating of a geometrical model which follows the transformer's sizes and material properties, real constants are established by standards.

TL;DR: In this article, the vibration analysis of a hydro generator that equips a Kaplan hydraulic turbine of a hydropower plant in Romania is presented, which means vibrations measurement to different operating regimes of the hydro generator respectively before installing it and into operation.