ΠšΠ°Ρ‚Π΅Π³ΠΎΡ€ΠΈΡ: # 4, 2024

The method of experimental evaluation of accuracy of the DJI MAVIC 2 ZOOM navigation system

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DOI 10.51955/2312-1327_2024_4_127

Roman O. Arefyev

Oleg N. Skrypnik

Natalya G. Arefyeva (Astrakhanceva)

Abstract. Rapid development of unmanned aircraft systems (UAS) and their application areas requires safe and efficient airspace (AS) for various categories of its users. One of the important tasks when using AS is planning a trajectory and flying the unmanned aerial vehicles (UAV) with account of the accuracy characteristics of on-board navigation systems. The paper presents a methodology for experimentally evaluating the accuracy characteristics of the on-board navigation system of the DJI MAVIC 2 ZOOM quadcopter. The methodology is based on the formation of a UAV desired track, with the help of which it is possible to estimate the deviation error in one of the horizontal coordinates and altitude. The experiments were conducted for real UAV flights at different altitudes and speeds. Semi-natural experiments were conducted with the GNSS SN-3803M signal simulator allowing us to determine the state of operability of the transport complex with a reduction in the number of the working constellation satellites.

Keywords: unmanned aerial vehicle (UAV), on-board navigation system, GNSS, trajectory accuracy.

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Linear density theorem for circulation in a vortex tube

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DOI 10.51955/2312-1327_2024_4_67

Nikolay V. Danilenko

Anton G. Kirenchev

Abstract. The article describes vortex formation in the atmospheric medium and analyzes the research on this topic. The main contradictions and problems in the study of vortex formation are revealed. The working process of transforming the initial potential flow of working body of the medium under study into vortex flow with the description of the main factors influencing this process is considered. The contradictions in the process of vortex tube formation are revealed, for which a new object of research was chosen – specific linear density of vortex circulation of gas (liquid) natural and anthropogenic media. The state and problems of the specific linear density of vortex circulation of the investigated vortex formation are assessed. The definition of specific linear density of circulation on the basis of its working process is presented. The correlation between the linear circulation density and the tangential velocity of the medium on the outer surface of the vortex tube is established. The definition of the theorem on the linear circulation density of a vortex tube is given. The proof of the theorem and the mathematical relationship of the linear density of medium vortex tube circulation and the tangential velocity on its outer surface are given. Corollaries of the theorem and their applications are presented.

Keywords: vortex formation, generation factors, working process, definition, theorem, classification, linear density of circulation, vortex tube, aircraft engine air intake vortices, tornadoes.

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Column writing in english mediadiscourse: communicative and pragmatic aspects

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DOIΒ 10.51955/2312-1327_2024_4_140

Tatiana I. Semenova

Andrey N. Dytov

Abstract. The study considers column writing that is equal to personalized journalism. Of central concern in the research is the issue of the individualized tinge in the column-writing, diversity of thought, independent thinking and personal style of the columnist. The paper focuses on the thought-provoking personal style of the distinguished Guardian columnist Simon Jenkins who covers issues across politics and society. The paper reveals lexical and syntactic stylistic devices used by the columnist to offer his views and opinions on the British prime minister cheerleading for war in the Ukraine.

Kew words: column, column writing, columnist, personal journalism, mediadiscourse, mediatext, personal style, a viewpoint of a columnist.

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Scientific and pedagogical concept as a form of scientific and pedagogical knowledge

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DOI 10.51955/2312-1327_2024_4_195

Zulfiya A. Aksyutina

Abstract. The largest forms of scientific and pedagogical knowledge are considered to be scientific methodological approaches, pedagogical theories, pedagogical concepts and scientific and pedagogical concepts. Scientific methodological approaches and pedagogical concepts as forms of scientific and pedagogical knowledge are quite fully substantiated. Pedagogical theory as one of the elements of pedagogical knowledge performs the function of explaining the essence of pedagogical facts, phenomena, processes and dependencies between them. The purpose of the article is a theoretical analysis of the scientific concept as a form of scientific and pedagogical knowledge based on the properties of the scientific nature of pedagogical knowledge. In the course of the study, five stages of development of scientific and pedagogical concepts through the use of various meaningful forms of the word in scientific discourse were identified: emergence, conceptualization, categorical filling, transformation, terminological consolidation. It is proved that scientific concepts have such properties as objectivity, general significance, systematicity and universality, therefore they are a form of scientific and pedagogical knowledge. In the conditions of the multiplicity of meanings of scientific and pedagogical concepts, greater clarity and unambiguity are required in their formation with an ascent to a higher level of abstraction in their design. Scientific and pedagogical concepts remain one of the significant forms of scientific and pedagogical knowledge, since they have the properties of objectivity, general significance, systemicity and universality.

Key words: pedagogical science, scientific and pedagogical knowledge, structure, pedagogical category, scientific and pedagogical concept, forms of scientific and pedagogical knowledge, properties, objectivity, general validity, consistency, universality.

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Emotive code of the English tourism discourse

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DOIΒ 10.51955/2312-1327_2024_4_152

Andrey B. Evseev

Abstract. The article is devoted to the enquiry into the category of the emotive code of the English tourism discourse. The paper aims at a comprehensive inquiry into the linguistic means dealing with the category of emotive code which identifies specificity of the tourism discourse. To solve the problem raised, we utilized general scientific methods (synthesis, generalization), analysis of the text corpus, method of linguistic analysis. The relevance of the paper is justified by the growing interest of linguists across the globe in the study of problems of emotivity and emotionality implied in various modes and genres of discourse, as well as the presence of a wide research potential of discursive communication, as a set of methods and techniques of interaction between the addresser and the addressee.

Key words: The English tourism discourse, emotion, emotionality, emotivity, emotive, emotiology, emotive code, linguistic category, tropes, grammatical level, stylistics.

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