Additive Manufacturing of Smart Composite Structures Based on Flexinol Wires

3D printing of a composite structure with shape memory materials requires a special approach to the subject, at the stage of the design and printing process. This paper presents the design steps during the development of a 3D-printed composite structure with shape memory material. The connection points between the SMA fibers and the printer filament are developed in the MATLAB environment. Finite element method is used to simulate the shortening of the shape memory material under the influence of temperature and its effect on the printed polymer material is presented. In the MATLAB environment, evolutionary algorithms were used to determine the shape of the SMA fiber alignment. This work demonstrates the use of shape memory effect in 3D printed smart composite structures, where the component takes a predetermined shape. The structure obtained as a result of such printing changes with the heat generated by the current voltage, making it the desired fourth dimension.

Calculation of tunnel incision parameters during phacoemulsification in patients with previous anterior radial keratotomy

Background. The purpose was the choice of the type of tunnel incision on the basis of mathematical calculations in cataract patients with a previous anterior radial keratotomy. Materials and methods. During the calculations, the formula for the chord length of a circle was used: L = 2R · sin(α/2), where R is the radius of the cornea, α is the angle (in degrees) between the two corneal incisions. The chord length was measured on the limbus (upper edge of the tunnel incision) and 2 mm from the limbus (lower edge of the tunnel incision). The chord 2 mm from the limbus is more important because the distance between kerato­tomy incisions at this site is smaller. From 0.4 to 1.0 mm must be added to the width of the knife blade, depending on the type of postoperative corneal healing, which will be the key to crossing the incisions. Results. The most common knives are those 2.2 mm long with a tunnel length of 2 mm. Therefore, we perform calculations based on this knife in patients with 8 and 12 keratotomy incisions and a corneal diameter of 12 mm vertically and 11 mm horizontally. In patients with 8 keratotomy incisions, a 2.2 mm knife can be used for a corneal tunnel incision, and in patients with 16 incisions, it is impossible to use a corneal tunnel. Conclusions. In cataract patients who have previously undergone anterior radial keratotomy, a special approach is needed to the choice of tunnel incision. The choice of access depends on the diameter of the cornea, the number of keratotomy incisions and the width of the knife and is calculated using the formula for the chord length of a circle.

SPECIFICITY OF THE ARCHITECTURAL AND SPATIAL ORGANIZATION OF THE PETROGRAD SIDE OF ST. PETERSBURG

The preservation of the historical, urban planning and architectural heritage of the central territories of St. Petersburg requires a special approach to solving the problems of reconstruction and renovation of the historical urban environment. The modern period, characterized by active reconstruction of the historical center, puts forward new requirements for the preservation of cultural heritage sites. The att itude to history as an experience, on which modern practice should be based, presupposes the disclosure of historical architectural and urban planning processes on the basis of systematization of existing and fi lling in missing information. This allows us to analyze the spatial and temporal transformations that the city underwent in the course of its development. Revealing the internal laws of the genesis of these processes is of great importance. The article analyzes the state of urban landscapes within the boundaries of the historical territories of the Petrogradsky district of St. Petersburg.

PEDESTRAIN OVERPASSES IN THE COMPLEX TRANSFORMATION OF DEVASTED CITY TERRITORIES

The preservation of the historical, urban planning and architectural heritage of historical cities requires a special approach to the environment modernization. The modern period is characterized by the search for new safe waste management algorithms. It often leads to the construction of large-scale discordant objects. This process puts forward new requirements for the preservation of the visual protection zones of cultural heritage objects. The article is devoted to a promising strategy for optimizing of devastated territories. It includes the creation of overpass pedestrian links, which can be an additional source of landscaping, as well as open up new opportunities for the transit of engineering networks. The article analyzes the possibility of using such architectural and spatial solutions to modernize the waste management infrastructure of urban devastated.

PRAGMATIC ANALYSIS OF THE USE OF STYLISTICALLY COLORED LINGUISTIC UNITS IN POLITICAL DISCOURSE: ON THE MATERIAL OF V.V. PUTIN'S SPEECHES

Постановка задачи. В предлагаемой статье мы подвергаем прагматическому анализу употребление стилистически окрашенных языковых единиц в политическом дискурсе жанра устной речи: на материале телевизионных выступлений (таких, как заседание и интервью) Президента России. Исследование окрашенных языковых единиц в рамках политического дискурса представляет собой особый интерес, поскольку данные единицы обслуживают прагматику языка. Результаты. Прагматическая информация в политическом дискурсе распределена между всеми языковыми единицами. Однако стилистически окрашенные языковые единицы, под которыми мы подразумеваем коннотативно насыщенные слова, выражения, фразеологизмы и афоризмы, несут в себе наибольшую прагматическую нагрузку. Именно они способствуют не только привлечению внимания адресата, но и воздействию на него. Выводы. Политический дискурс, представляя собой специфический и комплексный вид коммуникации, требует особого подхода к его исследованию. Роль стилистически окрашенных языковых единиц в реализации речевой интенции адресанта в политическом дискурсе велика. В ходе исследования было констатировано, что использованные Президентом России слова, выражения, фразеологизмы и афоризмы носят в целом оценочный характер, точнее ироническую окраску (в частности, отмечается довольно частотное употребление фразеологизмов (81.81%), а иногда стилистически сниженных слов и выражений (6.06%)). Это возможно объяснить тем, что фразеологизмы, в отличие от афоризмов, являются носителями лексического значения и могут выступать в качестве эквивалентов слов. Кроме того, степень сочетаемости компонентов во фразеологизмах неодинакова, т.е. в них могут входить несвободные, но легко отделяемые по смыслу слова, и употребляться в переносном значении. Следовательно, они с большей лёгкостью создаются в процессе речи, способствуя достижению иллокутивной цели адресанта. Тем не менее фразеологизмы и афоризмы, а также стилистически сниженные слова благодаря своей экспрессивности способствуют не только привлечению внимания адресата, но и воздействию на него, производя при этом определённый прагматический эффект. Problem statement. In the proposed paper, we subject to a pragmatic analysis the use of stylistically colored linguistic units in the political discourse of the genre of oral speech: based on the material of television speeches (as meeting and interview) of the President of Russia. The study of colored linguistic units within the framework of political discourse is of particular interest, since these units serve the pragmatics of language. Results. Pragmatic information in political discourse is distributed among all linguistic units. However, stylistically colored linguistic units, by which we mean connotatively saturated words, expressions, phraseological units and aphorisms, carry the greatest pragmatic load. They contribute not only to attracting the attention of the addressee, but also to influencing him. Conclusion. Political discourse, representing a specific and complex type of communication, requires a special approach to its study. The role of stylistically colored linguistic units in the realization of the addressee's speech intention in political discourse is huge. In the course of the study, it was stated that the words, expressions, phraseological units and aphorisms used by the President of Russia are generally evaluative, more precisely, ironic (in particular, there is a fairly frequent use of phraseological units (81.81%), and sometimes stylistically reduced words and expressions (6.06%)). This can be explained by the fact that phraseological units, unlike aphorisms, are carriers of lexical meaning and can act as an equivalent of words. In addition, the degree of compatibility of components in phraseological units is not the same, i.e. they may include non-free, but easily separable words, and be used in a figurative sense. Consequently, they are more easily created in the process of speech, contributing to the achievement of the illocutionary goal of the addressee. Nevertheless, phraseological units and aphorisms, as well as stylistically reduced words, due to their expressiveness, contribute not only to attracting the attention of the addressee, but also to influencing him, while producing a certain pragmatic effect.

NAZI MILITARY ADMINISTRATION ON THE OCCUPIED NORTH CAUCASUS DURING 1942-1943: PLANS AND PRACTICES

The article presents the conceptual and practical dimensions of the Nazi military administration in the North Caucasus in 1942-1943. The issue’s relevance draws on the academic assumption on the “special” German policy in the annexed North Caucasus. The analysis of documentary material enabled reconstruction of some aspects of the German occupation policy before and during the battle for the Caucasus. Germany’s plans contained explicit contradictions. The clear goal to seize the Caucasus’s resources and geopolitical benefits coexisted with the idea of applying a brand new type of occupation strategy and propaganda to prevent the resistance of local ethnic groups prone to conventionally dismiss the state’s penetration of society. A set of documents and the expert opinions of some German military-political actors are the source of the concept of a “special” occupation policy, which is based on the idea of reviving traditional Caucasian institutions and the restrained use of military violence in national regions. It is argued that a significant gap has appeared between the theory and practice of the occupation policy. Germany failed to conquer the entire Caucasian region, establish the Reichskommissariat “Caucasus” and create an effective management system. The occupation policy did not correspond to the idea of implementing a “special” approach. In practice, the structure and functions of the military administration were reduced to the political support of economic exploitation. A system of economic services was deployed in the North Caucasus to extract strategic assets whilst the punitive authorities acted within the standard framework.

Ego-network of István Bocskai in the Light of His Correspondence (1576–1598)

István Bocskai (1557–1606) was an outstanding person of the Hungarian history at the turn of the 16th and 17th century, who is one of the greatest letter-writer in the early modern age. The total exchange of letters (about 500 pieces) has been scattered over 30 various source-publications and source-books, while the unpublished letters can be found in different Hungarian and foreign archives. In my paper I focus on the social network of István Bocskai in two less-known periods, using a special approach (ego-network). My research is based on the correspondence of István Bocskai, that is one group of ego documents. My aim is to present, by 134 records (letters and testimonies) clean-cut, main tendencies.

USING POP SONGS IN TEACHING ENGLISH LANGUAGE TO STUDENTS MAJORING IN MUSIC ARTS. PHONOLOGICAL ASPECT

In the process of foreign language acquisition, students can face various obstacles, which can prevent them from achieving the desired goal. English pronunciation is traditionally considered one of the most challenging issues, which require special approach and teaching techniques to tackle. Teaching English language using popular songs appears to be a very effective method as songs provide students with plethora of pronunciation patterns they can master in an effective and at the same time enjoyable way. Moreover, music influences students' feelings thus developing their emotional intelligence, ensure relaxed atmosphere in the classroom, thus motivating them to learn various aspects of English language. Another indisputable argument for using songs and music in the process of EFL/ESL teaching is that these two notions have a lot in common. Both language and music have acoustic parameters like pitch, duration, stress and intonation. Having analyzed the research works of domestic and foreign scholars and practitioners, it was concluded that popular songs can be used to practice all language skills – grammar, vocabulary, reading, listening, writing and most importantly, pronunciation skills. It is clear that inadequate phonetic interpretation of the vocal text can cause deviation from the original (authentic) content and result in total misunderstanding or spoilt aesthetic perception of a song. In the process of mastering pronunciation with vocalists, it is necessary to take into account the peculiarities of vocal speech too. The article focuses on the methodological value of popular songs in the development of phonetic abilities in students majoring in music arts. The article also outlines the difficulties students face in the process of honing phonological skills such as certain consonant sounds and diphthongs as well as connected speech and provides the methodological approach to using songs in the classroom. It is strongly advised that language instructors carefully select the songs, taking into account many factors such as the students' level of English, age, and interests, as well as the complexity of the songs and their rhythm. It is recommended to follow a certain sequence of activities when working on the song material in order to facilitate the process of improving pronunciation of English sounds

Análisis ético de los deportes electrónicos: ¿un paso atrás respecto al deporte tradicional? (Ethical analysis of esports: a step backwards compared to traditional sports?)

Los deportes electrónicos, también conocidos como esports, son un rompedor fenómeno basado en competiciones deportivas en las que el ser humano desarrolla y entrena capacidades mentales y físicas bajo el uso de videojuegos competitivos. Su especial acercamiento a las nuevas generaciones ha creado cierta preocupación social sobre la educación, concretamente ética, que ofrece esta manifestación a los más jóvenes. Apoyados en la corriente hermenéutica, nuestro objetivo es analizar, desde un prisma ético, el fenómeno de los esports y como pueden contribuir, están contribuyendo o podrían contribuir a que sus practicantes tengan una vida plena. Entre los elementos analizados encontramos el proceso de virtualización, la corporalidad, la libertad, la virtud, el autoconocimiento o la violencia. Tras el análisis, se puede concluir que esta preocupación y crítica socialmente asentada no está fundamentada pues los deportes electrónicos pueden contribuir a un desarrollo ético del individuo y, con éste, a su educación. De esta forma, el desarrollo ético del sujeto contribuye al desarrollo ético de la sociedad. Algunos aspectos desarrollados pueden las concepciones de corporalidad, género y feminismo, la democratización de la competición humana, la disonancia entre la realidad y la virtualidad, la concepción de la agresividad, la violencia y la catarsis, la idea de libertad como existencia auténtica o las implicaciones del juego y del deporte en la humanidad. Abstract: Electronic sports, also known as esports, are a groundbreaking phenomenon based on sports competitions in which the human beings develops and trains mental and physical abilities using competitive videogames. Its special approach to the new generations has created certain social concern about education, specifically ethics, which this manifestation offers to the youngest. Supported by the hermeneutical current, our objective is to analyse, from an ethical prism, the phenomenon of esports and how they can contribute, are contributing or could contribute to their practitioners having a fulfilling life. Among the analysed elements we find the process of virtualization, corporeality, freedom, virtue, self-knowledge or violence. After the analysis, it can be concluded that this socially based concern and criticism is not founded, since electronic sports can contribute to an ethical development of the individual and, with this, to his education. In this way, the ethical development of the subject contributes to the ethical development of society. Some aspects developed can be the conceptions of corporeality, gender and feminism, the democratization of human competition, the dissonance between reality and virtuality, the conception of aggressiveness, violence and catharsis, the idea of freedom as authentic existence or the implications of the game and sport in humanity.

ДОСВІД І ОСОБЛИВОСТІ ФОРМУВАННЯ МАСОВИХ ХАРАКТЕРИСТИК МОДИФІКАЦІЙ ВАЖКОГО ТРАНСПОРТНОГО ЛІТАКА

Heavy transport aircraft are built and operated by US airlines (C-5A, C-5B, B-747-400), the European Concern Airbus (A-380), and the ANTONOV domestic state-owned enterprise. Such heavy aircraft as An-22, An-124 and An-225 have received worldwide recognition as the most efficient in their class [1, 2, 3]. It should be noted that such outstanding compatriots as O. K. Antonov, P. V. Balabuev, S. A. Bychkov, V. I. Tolmachev, V.F.Eroshin, O.K.Bogdanov made a decisive contribution to their improvement (including formation of mass characteristics).The main path of development of domestic heavy transport aircraft is to create modifications that meet the ever-increasing requirements of the time and customers to improve their transport and economic performance.The article shows that one of the ways to improve this type aircraft efficiency is the formation of their mass characteristics (i.e., mass of the aircraft modification itself and its individual units), which significantly affect all flight technical and economic parameters.It is proposed to take into account possible changes in four groups of parameters when assessing the starting mass (formed at the initial stages of creating a modification):T - a group of parameters that determine the level of requirements for a new modification;U - a group of parameters that determine the achievement of the stated goals at the stages of creation and operation of the modification;O - a group of parameters that determine the appearance of the future modification;P - a group of parameters that determine the mass and its density in the created modification.Division of the parameters into four groups makes it possible to evaluate and minimize the effect of the objective "square - cube" law on the mass gain in the design, production of a prototype and its flight tests and to represent it in the form of the starting mass of the modification (m0).The effectiveness of using the proposed approach to the formation of mass characteristics is shown on examples of the development of modifications of the An-124-100M and An-124-100M-150 airplanes.A distinctive feature of these modifications are: they were developed twenty years after creation of the base An-124 aircraft, carrying capacity has been increased by 30 tons, takeoff weight has been increased by 7%, the wing area, as well as the takeoff roll and landing run remained unchanged. The empty aircraft mass also remained unchanged, which indicates a special approach to the formation of mass characteristics. At the same time, in these modifications, the carrying capacity and flight performance increased by 25%, which is the highest achievement in the practice of creating aircraft of this type