The Rose "Ophelia" and Flower Symbolism in “Hamlet”

The study examines some topical issues associated with the quality of vocational training of future biologists. The article demonstrates the need for and the objective nature of transformation of the linguistic and educational paradigm from communicative to intercultural. The authors emphasize that it is important in the process of teaching foreign language biology students to create such professionally oriented foreign language learning environment that would form professional and sociocultural competences in students. The authors propose a nonstandard approach to the formation of professional competence in future biologists: learning the biological characteristics of the rose "Ophelia" by studying Shakespeare's tragedy "Hamlet" in the context of Ophelia’s image. Ophelia is the symbol of femininity. Her lines and the lines addressed to her show a lot about both her character and Shakespeare’s views of femininity. Considering the importance of professional and speech culture, special attention is also paid to professional-focused technology in intercultural communication teaching. The symbolism of the flowers of Ophelia's "bouquet" is describedж the image of Ophelia in films, music, ballets, paintings is presented.

From the particle pair production to the Hawking–Unruh radiation in the maximal acceleration hypothesis

Starting from a nonstandard approach to the Unruh effect, we present a description of the emission of radiation from a black hole that avoids quantization of scalar fields and Bogoliubov transformations, but assumes the existence of a maximal acceleration. In this framework, the description appears closer to the original heuristic Hawking’s point of view, with respect to the standard scenario.

Investigations of drilled and multi-piped impellers cavitation performance

The industry needs the rotodynamic pumps operating with ultra-low specific speed and relatively low flow rate more often. Designing of such structures on acceptable efficiency level is extremely difficult and require nonstandard approach to design as for example: drilled impeller or patented by author multi-piped impeller. Such pump elements are very easy to manufacture and operate with relatively high efficiency, but cavitation behavior is unknown.This paper focuses on experimental research in order to determine the cavitation characteristics of the drilled impellers and multi-piped impellers. The test rig was presented. Impeller models were made by means of SLS Rapid Prototyping methods. Additionally, CFD calculations were presented in order to determine static pressure distribution in the inlet sections of the investigated impellers.