Improving the learning process using computer technologies in a foreign language communication

The monograph presents materials on the following topics: the experimental formation of algorithms of professional activity of a military specialist in a foreign language environment; features of the implementation of educational functions in classical and distance learning methods; communicative competence of future bachelors of cultural science and subject-language integrated learning (on the example of the disciplines "Art History" and "English language"); foreign language as a component of professional training of ship radio engineer; analysis of the paradigm of cognitive linguistics; the use of thematic corpuses of texts when translating specialized discourse; expressiveness in the scientific and technical text; representation of linguistic personality in the field of maritime professional activity. The monograph is intended for researchers, university professors and students of psychological, pedagogical, methodical and linguistic specialties.

A Mathematical Model to Predict Voltage Fluctuations in a Distribution System with Renewable Energy Sources

This paper proposes a simplified mathematical model to predict the impact of connection of Distributed Generators (DGs) to the ac grid. The model allows the user to examine the fluctuations in the magnitude of voltages at different nodes in the distribution system. In order to use the model, the user does not require a commercial simulation software making it a handy tool for a practicing engineer. Analysis has been presented to describe how the detailed mathematical model of the system is reduced using elementary matrix manipulation techniques to obtain the final simplified mathematical model. Simulation results are presented to verify the mathematical model with a ring distribution system with three DGs connected to it and the results validate those attained from the mathematical model.