Litteris et Artibus. – 2017 р.

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https://ena.lpnu.ua/handle/ntb/40266

Proceedings of the 7th International youth science forum, November 23–25, 2017, Lviv, Ukraine

У збірнику опубліковано матеріали наукового форуму, присвяченого проблемам у галузі комп’ютерних наук та інженерії, інформаційних технологій; геодезії, архітектури та будівництва; енергетики та систем керування; гуманітарних та соціальних наук; машинобудування, матеріалознавства, транспорту; економіки та менеджменту; хімії та хімічних технологій; права та психології; екології, природоохоронної діяльності та туризму. Видання призначено для науковців, аспірантів, студентів.

Litteris et Artibus : proceedings of the 7th International youth science forum, November 23–25, 2017, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2017. – CD-ROM. – 466 p.

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Recent Submissions

Now showing 1 - 20 of 187
  • No Thumbnail Available
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    The evolution of the ceiling in architecture
    (Видавництво Львівської політехніки, 2017-12-23) Tkachuk, Hanna; Bilinska, Oksana; Lviv Polytechnic National University
    The evolution of the ceiling, vault, as an important element of forming the interior space of architectural buildings is highlighted. The form, structure, materials and aesthetic factors in the building history of mankind are analyzed. The changes in the formation of the ceiling, the principles of the application of polychrome are described. The topic of artistic aesthetics ceilings (e.g. vaults ) was discussed in detail. Examples of modern types of ceilings, such as geo-grating, ceilings made of red shoe laces, modern interpretation of the vault – stretch ceilings, etc., which today are extremely important for interior design of buildings, are given.
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    Optical illusions: the path of enlightment
    (Видавництво Львівської політехніки, 2017-12-23) Chernychuk, Elena; Bazylevych, Viktoriya; Lviv Polytechnic National University
    The article presents a periodization of optical illusions done by the authors.
  • No Thumbnail Available
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    Bearing capacity of anchors in thin aerated concrete masonry under tension and shear loading
    (Видавництво Львівської політехніки, 2017-12-23) Verba, Volodymyr; Charaf, Younes; Ouassim, Tahri; Lviv Polytechnic National University
    This article is devoted to a problem of anchoring strength of anchors (wall plugs) in thin aerated concrete blockwork. Aim, research tasks and programme of experiment are represented.
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    Educational establishments and their role in the formation of the architectural environment of Vinnytsia at the beginning of the XX century
    (Видавництво Львівської політехніки, 2017-12-23) Subin-Kozhevnikova, Alyona; Vinnytsia National Technical University
    The article deals with the formation and development of the architectural environment of Vinnytsia at the beginning of the 20th century under the influence of sociocultural and historical factors. It is established that the architectural and town planning system of the city at the beginning of the XX century was formed under the influence of traditional elements, like the environment, in combination with fundamentally new components, caused by the functional and spiritual needs of the society of that time. In the article the author reveals the city as a multifunctional social organism fulfilling an important cultural function. That is why the influence of the development of the educational infrastructure on the formation of the architectural and spatial organization and the aesthetically artistic image of Vinnytsia is studied in the work.
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    The basic principles of the formation of the palace architecture of the Eastern Podillya in the period of early classicism
    (Видавництво Львівської політехніки, 2017-12-23) Khorosha, Oksana; Vinnytsia National Technical University
    The article analyzes the influence of the early classicism period on the formation of the main aspects of the architectural environment of the palace complexes in the Eastern Podillya. For the first time, monuments are classified according to the stages of development of classicism and it is described the principles of organization of palace structures of the late 18th century. It is considered the historical and sociopolitical preconditions for the establishment of palace complexes of that period. In the article the author gives examples of palace buildings and follows their architecturalplanning and functional-spatial features. It is proved that the principles of the European early classicism had impact on the creation of conceptual features and typical signs of the palace complexes of the Eastern Podillya in the context of regional architectural tendencies and belonging to the territory of the Polish-Lithuanian Commonwealth in the XVIII century.
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    The significance of open-air museums for preserving of memorable architectural ensembles of Ukraine
    (Видавництво Львівської політехніки, 2017-12-23) Brych, Mariia; Lviv Polytechnic National University
    Ukraine owns a great number of architectural monuments. Many of them are large ensembles and complexes. They require a special approach to their protection. In this article problems of their preservation in connection with the region, society and environment are analyzed. The method of their preservation by way of museumification and creation of open-air museums on their basis with the aim of revealing their historical, cultural, scientific and artistic value is proposed.
  • No Thumbnail Available
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    Mobile housing design: overview of current trends
    (Видавництво Львівської політехніки, 2017-12-23) Khymytsia, Olha; Lviv Politechnic National University
    The relevance of using mobile housing is substantiated, its classification is based on an own version of a mobile home (transformer type).
  • No Thumbnail Available
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    Hemp-lime bio-composites – properties and applications in architectural design
    (Видавництво Львівської політехніки, 2017-12-23) Gołębiewski, Michał; Warsaw University of Technology, POLAND, Warsaw
    This paper discusses physical properties and applications of hemp-lime bio-composites in architectural design. Hempcrete is a new, innovative construction material with significant ecological benefits, which gains popularity all over the world. Research on this topic is being conducted in many areas: material science, civil engineering, agriculture, ecology and architecture. The aim of this work was to review the worldwide publications and systemize the knowledge about the issue to provide information designated mainly for architects.
  • No Thumbnail Available
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    The peer land exchange in land readjustment models
    (Видавництво Львівської політехніки, 2017-12-23) Bugaienko, Olena; Kyiv National University of Construction and Architecture
    The research is aimed at substantiation of land readjustment optimization models based on the equivalence of land plots to be exchanged. European experience of land readjustment has been considered. The formation of the notion of equivalency in the readjustment optimization models has been scrutinized. Factors influencing the land plots equivalency have been singled out. Land reallocation modelling with the formation of demands to the equivalence of the reallocated land plots by qualitative and spatial and technological characteristics has been suggested.
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    Models of representation of selenopotentials by spherical functions and using point masses
    (Видавництво Львівської політехніки, 2017-12-23) Haihel, Yuriy; Lviv Polytechnic National University
    there are many approaches to studying the gravitational field of the moon, and depending on the method chosen and the input information, each of them has certain advantages.
  • No Thumbnail Available
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    Influence of the vibration source location on the modes of jet disintegration in the priller and on monodispersity of the finished product
    (Видавництво Львівської політехніки, 2017-12-23) Skydanenko, Maksym; Kononenko, Mykola; Kurdes, Yuliia; Sumy State University
    Influence of the vibration source location on the modes of liquid jets disintegration and obtaining monodisperse droplets and granules of the finished product is theoretically grounded and experimentally confirmed. The experiment was conducted on an experimental stand of industrial granulation equipment.
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    Analysis of archival cartographic materials for the modeling of digital terrain model of the Lviv city landfill during 1988-2008
    (Видавництво Львівської політехніки, 2017-12-23) Lozynskyi, Viktor; Lviv Polytechnic National University
    Made selection archival cartographic materials for further modeling of the digital terrain model of Lviv city landfill.
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    Monitoring crustal deformations in Carpathian fold system
    (Видавництво Львівської політехніки, 2017-12-23) Doskich, Sofiya; Moviaka, Oksana; Semenchuk, Vladyslav; Lviv Polytechnic National University
    The main territory of Ukraine is located on stable Eastern European platform but some parts are also in the Mediterranean zone: Carpathian fold system and Foldedbrylova Building Mountain Crimea. These tectonic structures are characterized by seismicity. Monitoring such seismic active regions is great interest for geodynamic study. Nowadays, monitoring of these regions is more available with development and distribution of GNSS technology. The Department of Geodesy and Astronomy of Lviv Polytechnic National University operate several reference GNSS stations in Carpathian region. These stations are used for engineering purpose but they also have a strong potential for the monitoring of regional and local crustal deformation. This research intends to quantify crustal deformation trend in Carpathian fold system using GNSS technique observations starting from 2013 to 2016. GNSS measurements are processed by Gamit-Globk software. Absolute rates of reference stations have been estimated (22 mm/yr). Horizontal rates show a clear trend – a dextral character. Movement components are in the direction of northern east.
  • No Thumbnail Available
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    The definition of deviation of “Geoevolutionary” plumb line based on data from the transformation of the Earth
    (Видавництво Львівської політехніки, 2017-12-23) Shylo, Olha; Shylo, Yevhenii; Lviv Polytechnic National University
    This article is about dynamic transformation of the litosphere relative to the geoid. Calculated of deviation of “geoevolutionary” plump line, which is interpret as the angle between the normal to the surfaces of ellipsoids approximating the shape of the litosphere and the geoid. These values are converted into tangential force and determine the stress-strain state in the Earth’s crust.
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    Toward geodynamic studies and GNSS CORS measurements: West Ukrainian GNSS network data processing using Bernese v5.2 software
    (Видавництво Львівської політехніки, 2017-12-23) Golubinka, Iurii; Kramarenko, Sergiy; Lompas, Oleksandr; Marchenko, Dmytro; Lviv Polytechnic National University
    Presented study is organized to enhance the services provided by number of GNSS stations in Western Ukrainian region, which are mainly a network of Continuously Operated Reference Stations (CORS) established in different years by different institutions, and improve the efficiency of the GNSS data usage. The main objective of the study is to compute CORS velocities, using available three years’ data, establish an automated procedure of further data computation. The interpretation of the velocities together with geological data for the region and estimation of the crustal movement as well as extension of the studied region to all Ukrainian area
  • No Thumbnail Available
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    Method of increasing the ecological indicators of the process of combustion of organic fuel in TPP boilers
    (Видавництво Львівської політехніки, 2017-12-23) Kulyk, Mykhailo; Kravets, Taras; Medvedeva, Anna; Ivano-Frankivsk National Technical University of Oil and Gas; Lviv Polytechnic National University
    Power boiler installations of thermal electric power plants (TPP) are among the main pollutants of the air basin of the environment. The object of this study is the method to improve the environmental performance of the coal combustion process in TPP, which lies in supplying air with an increased oxygen content to the combustion zone. The purpose of the article is the theoretical study of the application of the method of increasing the ecological indicators of the process of coal combustion in TP-100 boilers of the Burshtyn TPP, which is achieved by delivering pure oxygen to the prepared dust-air mixture directly to the burners. This article shows that it is possible to reduce the volume of combustion products by 30 thousand nm3/h and by 50% by concentration of nitrogen oxides for a power unit of 200MW with a boiler TP-100 of the Burshtyn TPP with fuel consumption of 55-89 tons per hour.
  • No Thumbnail Available
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    Hydrodynamic flow measurement error of ultrasonic flowmeters
    (Видавництво Львівської політехніки, 2017-12-23) Roman, Vitalii; Matiko, Fedir; Kovalchuk, Ivanna; Lviv Polytechnic National University
    In this work the essence of hydrodynamic flow measurement error of ultrasonic flowmeter (USM). The methods of eliminating this error are analyzed. One of these methods is considered in detail – optimization of the location schemes of chordal acoustic paths (APs) of USM. The optimization is performed on the basis of the analytical-empirical power law of the distribution of the velocity of the undistorted flow. As a result of the work, the authors calculated the optimal location of the APs for chordal schemes of two- and three-path USMs. It was established that optimization of the location schemes of APs chordal USM allows to reduce the hydrodynamic flow measurement error to a value of 0.05 %(for USMwith two hordal APs) and 0.1 %(for USMwith three chordal APs). The developed approach is convenient when designing multipath USM and their research in laboratory conditions.
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    Determination of the armor wear and tear of the drum ball mill
    (Видавництво Львівської політехніки, 2017-12-23) Mysak, Stepan; Kovalenko, Tetiana; Lviv Polytechnic National University
    The object of the research to develop an analytical method for determining the armor wear rate of the drum ball mill was the boiler TP-100 (TP-100A) of the 200 MW power unit of Burshtyn TPP (Ukraine), equipped with two individual dust-preparation systems with drum ball mills KBM 370/850 (Sh -50A). An effective analytical method for determining one of the main performance indicators of a drum ball mill – the wear rate of the drum armor, grinding balls and the relationship between them in case of “G” grade coal combustion for TP- 100 boilers is proposed. Its essence is to reduce human labor costs, more accurately determine the wear rate of the drum armor and grinding balls. This method is characterized by the fact that the main estimation indicator is the drum armor wear rate depending on the manufacture quality of armored plates (manufacturer).
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    Analysis of experimental researches of wood gasification process in a continuous layer
    (Видавництво Львівської політехніки, 2017-12-23) Lys, Stepan; Rymar, Tetyana; Yurasova, Oksana; Bura, Mykhaylo; Lviv Polytechnic National University
    For today are known quite a bit methods redoing of wood and its wastes in energy, but one of the most perspective is gasification. The construction of the gazogene, on which the row of experiments is conducted with the aim of determination of conformity to law of influence of entrance factors which influence on the process of gasification and on quality of synthesis-gas, was worked out for this purpose. The statistical processing of experimental data enables to define the optimal parameters of work a gazogene.
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    Improvement of the mechanical consistometers for paper pulp
    (Видавництво Львівської політехніки, 2017-12-23) Romaniuk, Oleksandr; Kril, Bohdan; Kril, Oleksandr; Lviv Polytechnic National University
    he purpose of this work is to improve the rotational and blade type mechanical paper pulp consistometers for enhancement of their metering characteristics and reducing the influence of pulp flow velocity, friction torques in shaft sealing and bearings on the measured pulp consistency. These goals are achieved by algorithmic control of the sensor motion velocity and algorithmic processing of measured data. The designs of upgraded rotational and blade consistometers are presented.