bluuebunny/crossref_metadata_2025 huggingface dataset:
Поширення книжкової продукції на Правобережжі та в Західній Україні у XVI‑XVIII ст.
Authors: Макарова Марія
Published: December 2022

Мета дослідження – на основі комплексного аналізу архівних документів, опублікованих джерел та вивчення розвитку книжкової справи на українських землях з’ясувати шляхи і форми розповсюдження книжкової продукції у XVI–XVIII ст. Методологія дослідження ґрунтується на застосуванні загальнонаукових і спеціальних методів: порівняльно-історичний, ретроспективний, системний, історико-хронологічний, метод моделювання. Метод книгознавчого аналізу передбачав використання трьох підходів: вивчення конкретних примірників книги; вивчення книжкового репертуару певного часу; вивчення книги як елементу певного книжкового зібрання. Наукова новизна одержаних результатів полягає в тому, що уперше досліджено характерні умови книгообміну та співпраці між друкарськими осередками, форми і види книжкової продукції, особливості поширення та використання стародруків в різних регіонах України, в тому числі серед населення різних християнських конфесій.

Звернено увагу на той факт, що, попри визнання дослідниками українського друкарства потреби вивчення шляхів міграцій українських стародруків для історії окремих друкарень та видавничої справи на українських землях загалом, сьогодні подібні наукові розвідки майже відсутні. На підставі наявних документальних даних, архівних матеріалів та наукових розвідок докладно розкрито загальні тенденції розповсюдження книжкової продукції на Правобережжі та в Західній Україні у XVI–XVIII ст., а також особливості розповсюдження книжкових видань на Волині, Галичині, Буковині та Закарпатті. Наведено численні приклади розповсюдження книжкової продукції на українських землях у досліджуваний період. Підсумовано, що типовими для більшості друкарень формами розповсюдження книжкової продукції на Правобережжі та в Західній Україні у XVI–XVIII ст. були: торгівля книгами; видача «прикладок» працівникам друкарні, відправлення книг у подарунок, виконання замовлень на друкарську продукцію, відправлення книг у подарунок та ін., зокрема забезпечення богослужбовою літературою церков у монастирських вотчинах та приписаних до лаври монастирях, виконання замовлень на друкарську продукцію, надання доброчинних книжкових пожертв бідним церквам та обителям. Наголошено, що активний книгообмін на Правобережжі та в Західній Україні у XVI–XVIII ст. значною мірою зумовлювався наявністю тісних книговидавничих контактів та співробітництва між окремими друкарськими осередками. Акцентовано, що характер взаємовідносин на ґрунті видавничої діяльності між Києво-Печерською та Чернігівською, Кременецькою, Львівською братською, Унівською та Почаївською друкарнями свідчить про спільну видавничу діяльність передусім православної Київської і уніатської Почаївської друкарень для забезпечення потреб українського громадянства в книгах рідною мовою (Макарова, 2008).
Cinema and Television as Factors of Rave Culture Spreading in Ukraine
Authors: Rjazancev Lev , Sliesariev Ivan
Published: December 2022

The purpose of the research is to investigate and analyze the main stages of the club techno culture formation in Ukraine in the context of Ukrainian audiovisual art development. The realization of this goal involves solving the following tasks: to determine the role played by cinema, television, and modern media in the growth of techno music popularity; to prove the importance of electronic music in the context of the modern Ukrainian techno culture formation; to learn about the role of club life in shaping the image of a modern country. The research methodology consists in the application of the general scientific principle of objectivity, cultural, structural-functional, and analytical methods in the analysis of theoretical works of art, the subject field of which concerns the formation of club techno-culture in Ukraine in the context of Ukrainian audiovisual art development. Scientific novelty. The article analyzes the influence of cinema, television, and modern media on the spread of club culture in Ukraine, and systemizes the information obtained from periodicals and scientific domestic and foreign literature. The study can become a springboard for the development of topics in Ukrainian film studies and media theory. Conclusions. The article has analyzed the main factors influencing the spread of rave, indicates the stages of Ukrainian club life development; has identified the main factors and socio-political vectors that influenced the spread of club subculture, and has outlined the role of club life as a socio-cultural factor influencing the formation of domestic techno-culture). The development of music festival culture in Ukraine has been outlined as a way of joining the world culture, a stage of entering civilizational achievements, and an opportunity to express oneself in the world and in history.
The Role of the Latest Technologies in the Media Production Development
Authors: Bezruchko Oleksandr , Shevchuk Yuliia , Andriievskyi Dmytro
Published: December 2022

The purpose of the research is to analyze the components of modern content production methods and identify the dominant areas and technologies in modern production. Show the importance of learning new things and working with a rapidly evolving industry. The research methodology consists in using such methods as theoretical analysis of information sources, generalization of the influence of the latest production methods on the quality and speed of content production, and determination of the reasons for such trends. Scientific novelty. For the first time, the latest technology trends in content development are analyzed, a detailed analysis of the impact of the latest production methods on the quality and speed of content generation is carried out, and an assessment of the further development of the technologies under consideration and their future impact is made. Conclusions. In the course of the article, the technologies that are currently used in the development of content in technical terms have been analyzed. Analysis of information sources shows the influence of new approaches in content development on the quality and, above all, on the speed of content production. The factors influencing the development of the considered technologies and their subsequent impact on the content production industry have been overviewed.
Mockumentary Genre as a Cinematic Phenomenon of the Postmodern Age
Authors: Honcharuk Serhii , Levchenko Olena , Tsimokh Nataliia
Published: December 2022

The purpose of the research is to analyze the forms of artistic embodiment of mockumentary as a cinematic phenomenon of the postmodern era. By the purpose, the following tasks are set: to analyze the relatively new genre of mockumentary for the field of cinematography; to study the prerequisites for the formation of the genre, to determine the formal genre characteristics and specific tools of mockumentary filmmakers; to analyze stylistic and functional evolution of mockumentary films during the second half of the twentieth – early twenty-first century; to establish the factors that ensured the growth of the genre’s popularity in the postmodern era. The research methodology consists in the application of the following theoretical methods: analysis of the mockumentary phenomenon to determine the basic characteristics of the genre; a method of comparison regarding the functions of feature and non-feature films; a method of generalizing the processes and trends common to all spheres of the postmodern period culture; a method of abstraction about artistic means, which are equally characteristic of both documentary cinema and the mockumentary film genre. A systemic principle, namely a structural-functional approach, was also used to examine individual elements of the mockumentary genre and their relationship as constituent parts within the genre. The scientific novelty is caused primarily by addressing the phenomenon of mockumentary precisely in the context of postmodernism and conducting a detailed analysis of characteristic genre features. Also, the research singles out the reasons for the emergence of a new genre and the growth of its popularity. Conclusions. The article analyzes the reasons for the emergence of the mockumentary genre and the growth of its popularity during the second half of the 20th – the beginning of the 21st century. By analyzing individual samples of the genre, its characteristic stylistic and technical features have been revealed, and subcategories of the genre and the tools of mockumentary filmmakers have been formulated. The role of the mockumentary genre in the development of contemporary cinema has been determined.
Symbolism of Color in Cinema
Authors: Kovsh Oleksandr , Dziuba Mykyta
Published: December 2022

The purpose of the research is to analyze the perception of color by the viewer and to establish the role of the color score in the structure of the film, to determine the symbolism of the main colors in the fabric of the film. To achieve this goal, the following tasks are outlined: to establish the role of color in building the character and image of the character; to prove the importance of the ability to build and harmoniously organize the color scheme in the use of a monochromatic color system; to consider the role of color and its symbolism on specific examples. The research methodology consists of the application of the following methods: theoretical – for the analysis of films, and informative sources; generalization of the different colors’ influence on the general association of perception, the formation of subjective perception of scenes with the dominance of a certain color from the chromatic range; structural and functional, which consists in the isolation of color as a separate element from the integral fabric of the film and determining its function in the construction of characters, creating dramatic tension, etc. The scientific novelty is that the role of certain colors is analyzed in the example of modern projects, and a detailed analysis of the selection of colors depending on certain tasks in various scenes is carried out; with the help of theoretical analysis, the factors that influence the general impression of the viewer are determined. Thus, work was carried out on the collection and systematization of theoretical material on the topic and an attempt was made to apply theoretical concepts in practice. Conclusions. In the course of the article, we have analyzed the ambiguity of colors, the use of color combinations with sound, with other colors of the chromatic range. The role of color in conveying symbolism, associations, and the significance of changes in perception has been determined by analyzing films.
Peculiarities of Teaching PR in Public Administration at Higher Education Institutions
Authors: Morozova Olena
Published: December 2022

The purpose of the article is to analyze the peculiarities of teaching PR in public administration to students who master advertising and public relations.
The research methodology is based on the principles of scientific and pedagogical research and pedagogical observation. Analytical and theoretical methods were used to generalize the features of PR in public administration and to systematize the competencies of PR specialists who will work in public authorities.
The scientific novelty consists in identifying ways to form the competencies necessary for PR professionals who will work in the public sector.
Conclusions. Public communications of public authorities are still an area requiring serious theoretical understanding and training of professionals capable to participate in the development and implementation of the state information policy. Specialists in communication who understand the specifics of state authorities’ work and possess PR tools for establishing a constructive dialogue with target audiences (individual subjects, social groups, public organizations, political parties and leaders, and the people as a whole) are the key to the effective work of press services and communication units of state administration bodies.
Using Ontological Modeling by Intellectualization of Learning Processes
Authors: Tkachenko Kostiantyn
Published: December 2022

The purpose of the article is to investigate and consider the general trends, problems, and prospects of using ontological modeling of learning, training, and education processes in the university.

The research methodology consists in methods of semantic analysis of the basic concepts of the considered subject area (learning, training, and education processes in the university and intelligent technologies). The article discusses approaches to intellectualization education in the university with the help of modern systems that are based on ontological modeling and intelligent technologies.

The scientific novelty of the research is the analysis of the ontological modeling use and intelligent technologies for the intellectualization of learning processes.

Conclusions. The article discusses various aspects related to ontological modeling and intelligent technologies.

The use of ontological modeling in the intellectualization of the higher educational institutions’ activities makes it possible to move to the individualization of learning processes, to provide students and teachers with access to the ontology of not only a separate course, but also all courses of the educational and professional program in the relevant direction, to involve employers and other stakeholders in improving the educational process.
А Case Study of Using Digital Tools to Create an Online Communication Game Environment During COVID-19
Authors: Mamedova Valentyna , Skachenko Olena , Viriutina Kateryna
Published: December 2022

The purpose of the article is to analyse the experience of Ukrainian libraries using digital tools and the potential of competitions to create an online environment for communication with students during the COVID-19 quarantine.

Methods. When writing the article, the methods of content analysis, systematisation, and generalisation were used. As organisers of a series of digital intellectual competitions, the authors share their own experiences of creating an online communication environment for librarians and students, which involved intellectual online competitions on the Kahoot platform between students of Ukrainian universities and colleges to overcome the challenges of the COVID-19 pandemic.

The novelty of the study lies in new knowledge about the potential of digital tools, which, in the context of overcoming the challenges of the COVID-19 pandemic, were effectively used to establish communication between students and librarians.

Conclusions. The idea of using digital tools to create an online space for students to communicate with each other and with the library to overcome the quarantine restrictions of COVID-19 was transformed into all-Ukrainian digital intellectual student tournaments. In 2021, with the support of 28 libraries of higher education institutions of Ukraine, five intellectual online tournaments were held. With the help of digital technologies, 349 participants from 19 universities and 9 colleges of Ukraine competed in the Kahoot quiz and communicated on the Google Meet and Zoom video conference platforms.

The article demonstrates that the communication space, created with the help of video conferences, contributed to establishing communication between students and librarians and obtaining information about remote services. Using the capabilities of Kahoot to conduct online quizzes made it possible to popularise reading as a leisure activity in a game format, develop critical thinking skills, and team interaction. It is revealed that the main factors contributing to students’ participation in intellectual online competitions are: the need for positive emotional communication, recreational and cognitive motivation (to get interesting information), and the search for a reference group for interaction on the Internet.
RODOFEBISU – Trading Support System
Authors: Tkachenko Olexandr , Kutsenko Mykyta , Fleshner Hlib
Published: December 2022

The purpose of the article is to study, analyze and consider the general problems and prospects of developing software for trading RodOfEbisu with the possibility of automated trading based on a recommendation algorithm.
The research methods are the basic methodologies and algorithms for successful trading. The article considers approaches to the development and operation of software for automated trading.
The novelty of the research is the analysis of modern trading methods in different markets, the results of which can be used in the development of its own trading automation product, which is an assistant and, possibly, can become an independent unit.
Conclusions. The paper investigates the existing views on the modern approach to decision-making and buying, which can be used to develop its own product – a trader’s assistant. Taking into account the results of the analysis, it was decided to develop software for trading RodOfEbisu, which can act as an advisor and executor, with the possibility of using different trading strategies.
Pura Luhur Tamba Waras: aspects of sustainable tourism and spiritual tourism
Authors:   Politeknik Internasional Bali, Putra I Made Rony Mulia Kusuma , Mudana I Gede ,   Politeknik Negeri Bali, Oka I Made Darma ,   Politeknik Negeri Bali, Nova Muhamad ,   Politeknik Negeri Bali
Published: December 2022

This research aims to analyze the implementation of sustainable tourism in spiritual tourism at Pura Luhur Tamba Waras in Desa Sangketan, Tabanan Regency, Bali, Indonesia. This research uses qualitative analysis techniques. The data source used is secondary data and is accessed through company documents, journals, books, articles, and websites. The results show that sustainable tourism in spiritual tourism at Pura Luhur Tamba Waras are the application of basic concepts in sustainable tourism, namely the social concept of cooperation. The economic concept has also been implemented very well, namely the surrounding community can sell spiritual facilities and infrastructure in the temple area, but the implementation of the environmental concept is not good because the waste that is used for spiritual tourism is not well managed. Pura Luhur Tamba Waras has implemented three basic concepts of sustainable tourism, namely social, economic and environmental but the concept of the environment has not been maximally implemented.
THE EFFECT OF CYBERLOAFING BEHAVIOR, LOCUS OF CONTROL, AND WORK DISCIPLINE ON EMPLOYEE PERFORMANCE WITH ISLAMIC WORK ETHIC AS MODERATOR (Case Study at PT Kebon Agung Trangkil Pati Sugar Factory)
Authors: Sari Amelia Novita , Saifudin Saifudin
Published: December 2022

The purpose of this study was to determine the effect of cyberloafing behavior, locus of control, and work discipline on performance with an Islamic work ethic as a moderator. This type of research is a quantitative study with a population of PT Kebon Agung Trangkil Pati employees. The sampling technique in this study used purposive sampling, which collected 84 respondents. From the results of data analysis, it shows that: (1) Cyberloafing behavior has no significant positive effect on employee performance (2) Locus of control has a positive and significant effect on employee performance (3) Work discipline has a positive and significant effect on employee performance (4) Islamic work ethic can moderate the influence of cyberloafing behavior on employee performance (5) Islamic work ethic can moderate the effect of locus of control on employee performance (6) Islamic work ethic can moderate the effect of work discipline on employee performance at PT Kebon Agung Trangkil Pati
Changing the redistribution of forces between pile foundation elements as the load increases
Authors: Blashchuk Natalya , Maevska Irina
Published: December 2022

Having, during the design of the pile foundation, the load-bearing capacity of the piles determined in one way or another, as well as the calculated resistance under the sole of the rostwerk as a shallow foundation, it is possible to use data on the degree of implementation of the load-bearing capacity of each of the elements of the pile foundation to arrive at its total load-bearing capacity. But it is known that at different stages of loading, the degree of implementation of the load-bearing capacity of the elements of the pile foundation can change.The purpose of this work is to analyze the change in the redistribution of forces between the elements of the pile foundation with a gradual increase in the loads on it. This will make it possible to justify the selection of the critical value of settlement, for which it is appropriate to determine the degrees of implementation of the load-bearing capacity of the elements of the pile foundation, which can be proposed for use in the design.The analysis of changes in the redistribution of forces between the elements of the pile foundation with a gradual increase in loads on it was performed for the bush pile foundation based on physical modeling on small-scale models, as well as mathematical modeling using the Plaxis software complex.It was established that the pile in the composition of the bush, both according to the results of physical modeling and mathematical modeling, gradually realizes its load-bearing capacity as the load increases and, with significant values of settlement, perceives the load, more than the limit load of a single pile.Therefore, at a certain stage of loading, the degree of implementation of the bearing capacity of the pile begins to exceed unity. The share of the rostwerkwork in the load-bearing capacity of the foundation increases as the load increases, as the pressure under the sole of the rostwerkwork increases. The degree of implementation of the rostwerk practically does not change for a sandy base and increases insignificantly for a clay base. So, the rostwerk is gradually included in the work, but the potential ability of the rostwerk to perceive the load is not fully realized and at a certain value of settlement remains constant.The possibility of analyzing the redistribution of forces between elements of the pile group only at the stage of the maximum allowable settlement was evaluated.
Investigation of the impact of complex loading on the shallow foundations and the formation of a reactive layer in the soil base
Authors: Pidlutskyi Vasyl
Published: December 2022

The effect of a complex load on the shallow foundations, features of pressure transfer to the base soil, formation of a reactive layer in the soil base, features of determining the dimensions of the sole of square and rectangular foundations, as well as the character of the reinforcement of the foundations and the dependence of the reinforcement of the foundation sole on the stress formed under it were studied . Particular attention is paid to the action of various combinations of complex loads on the foundation, which can lead to separation of the foundation sole and, as a result, to its overturning.

The studies were carried out on the shallow foundations, columnar, made of monolithic reinforced concrete, on which metal columns rest and are fastened with the help of anchor (foundation) bolts. Buildings with a metal frame on such foundations are most often intended for warehouses, production or trade centers, agricultural facilities, service stations and many others.

The effect of additional loads on the foundations during the verification of the accepted sizes of the soles of the foundations is shown. Such additional loads can be: the weight of the foundations, the weight of the soil on the ledges of the foundations, the weight of the backfill under the floor, the weight of the floor structure, the useful load on the floor, the weight of the foundation beam, the weight of the hanging walls, etc.

Under the action of a complex off-center load at different moments of time, as a result of the action of various combinations of loads, under the sole of the foundations there are alternating stresses: average, maximum and minimum, which can lead to separation of the foundation sole. These stresses depend on the accepted dimensions of the foundation sole, and also affect their reinforcement. But the question arises: do the same stresses under the sole of the foundations affect the dimensions of the foundations and the determination of their reinforcement? The paper shows that to check the dimensions of the sole of the foundations, it is necessary to take into account the "standard" stresses under the sole of the foundations, and to determine their reinforcement - completely different stresses. Many scientists and designers are unaware of this fact. Therefore, incorrect consideration of the stresses under the sole of the foundations precisely to determine their reinforcement can lead to incorrect results, which will affect the reliability and cost of the foundations of the above buildings.

The work presents methods of constructing foundations of shallow laying under the action of an off-center load with the aim of absorbing it.
Use of 2D and 3D modeling to assess the stress-strain state of retaining walls of complex configurations
Authors: Bondareva Liudmyla , Nosenko Viktor , Malaman Artur
Published: December 2022

A comparison of the calculation results of the foundation pit enclosure made of flexible retaining walls is presented. Calculations were performed by the method of numerical modeling using Plaxis PC software, which is based on the finite element method. This task was implemented in three-dimensional (3D) and flat (2D) formulations of the problem, which provides more opportunities for a comprehensive assessment of the stress-strain state (SSS) of the elements of the "soil massif - anti-landslide structures" system when using complex configurations retaining walls.

Calculations were performed within three calculation sections for different stages of construction: 1st stage – the initial faze (formation of the soil massif in its natural state), 2nd stage – excavation of the first layer of the pit, 3rd stage – excavation of the second layer of the pit. Based on the results of the calculations, the SSS analysis of the elements of the "soil massif - anti-landslide structures" system was carried out and the reinforcement of the retaining walls was selected. An assessment of the slope stability was also performed at the stage of full excavation of the foundation pit.

It is shown that the advantage of using a plane FEM to assess the stress-strain state in the anti-slide structures is a much smaller amount of time spent on calculations and ease of understanding, but the disadvantage of this method is the lack of the possibility of taking into account the spatial stiffness of structures. It has been demonstrated that the use of spatial FEM allows taking into account the spatial stiffness of structures, which in the future makes it possible to more effectively design the retaining walls structures, however, modeling using this method is quite labor-intensive and requires significant resources of computer equipment for making calculations.

According to the results of the calculations, the displacements obtained in the calculation using 2D modeling are on 6-43% more than using 3D modeling, the bending moments are on 12-33% more.
THE FUNDAMENTALS OF FORMING THE NUMERICAL COMPOSITION OF THE COMPLEX BRIGADE OF MASON-INSTALLERS
Authors: MAKHYNYA Oleksandr , HLUSCHENKO Iryna , BASARAB Volodymir
Published: December 2022

The design of the flow method of the construction of a multi-story residential building with stone walls and prefabricated reinforced concrete floor structures has its own features, namely, the presence of mechanized and non-mechanized (manual) processes, which implies a significant difference in the number of performers when coordinating flows among themselves. Taking into account the importance of ensuring the rhythmic execution of construction processes, the formation of the optimal numerical composition of the complex brigade is an urgent issue.
As a result of the research, the complex process of building stone houses with prefabricated floors was divided into two streams: The first stream - assembly, transport and auxiliary processes: the first tier - delivery of pallets with bricks, delivery of boxes with construction mortar, monotonization of the gaps between the slabs; the second tier – installation of scaffolding, delivery of pallets with bricks, delivery of boxes with construction mortar, installation of the intermediate staircase and the first flight of stairs; the third tier – raising scaffolding, supplying pallets with bricks, supplying boxes with construction solution, dismantling scaffolding, installing floor slabs and the second flight of stairs; The second flow is the masonry of stone structures of the first, second and third tiers.
As a result of the conducted research, the theoretical dependence of the numerical composition of the complex brigade on the volume of work on the fence, the norms of labor costs and the conditions of performance of the work were established. At the same time, the limitations of the minimum numerical composition of the link were taken into account, with the condition of its ability to perform the most complex process from the components of the flow, which determines the need for the largest number of performers.
Also, restrictions on the maximum number of performers are taken into account, provided that each performer is provided with a sufficient front of work to perform it during the shift, and restrictions on the workload of performers depending on the accepted number of construction machines. The obtained results make it possible to optimize the technological design process.
STUDY OF THE PERFORMANCE OF FIBER CONCRETE IN STRUCTURES UNDER DYNAMIC INFLUENCES
Authors: SKORUK Oleg
Published: December 2022

The greatest effectiveness of fiber concrete is achieved with the correct combination of the properties of its individual components. The properties of fiber concrete as a composite material largely depend on the type and type of fiber used in its composition, which determines its overall characteristics.
For cost reasons, steel fiber is quite effective, since the modulus of elasticity is several times higher than the modulus of elasticity of concrete, and with sufficient anchoring in the concrete matrix, its strength can be fully used, which will significantly improve the performance of the composite at the stages of and after the formation of cracks.
One of the important characteristics of fiber concrete in relation to dynamic influences is its impact strength, which largely depends on the type of fibers used, its shape, type, and length. An important factor for the perception of impact and other dynamic influences is also the amount of applied fibers in the concrete matrix mixture.
Scientists [3,4,15,16,17] over the years have established that at a concentration of metal reinforcing fibers up to 2%, it does not cause their comming and provides a composite with better properties.
The fiber can have different types of cross section - round, oval, rectangular and others, with dimensions from 0.2 mm to 1.6 mm and length from 5 mm to 160 mm. Tensile strength - 400-1100 MPa.
The effectiveness of the use of steel fiber concrete is achieved as a result of reducing labor costs, primarily due to the partial or complete exclusion of reinforcement works and a decrease in the material capacity of structures, as well as a decrease in their cost with a simultaneous increase in the operational qualities and durability of structures.
To get a better idea of the influence of the number, type of reinforcing metal fibers and their characteristics on the perception of impact strength, the experimental studies described below were performed.
ANALYSIS OF THE STATE OF STRESS AND DEFORMATION OF GLAMINATED WOOD FRAMES REINFORCED WITH COMPOSITE TAPES
Authors: MYKHAYLOVSKYI Denis , KOMAR Mykola
Published: December 2022

In the modern world, the construction industry is successfully developing in various directions. Large-sized structures are replaced by analogues reduced in cross-section with the help of various types of reinforcement.
Frames refer to flat spacer structures. Modern glued frames are often solid. Cross-section (lattice) structures of this class were used mainly from solid wood. Currently, they are practically not used due to the lack of their industrial production.
Frame structures mainly consist of rectilinear elements and allow the presence of rigid (frame) nodes. Rigid nodes of three-hinged frames are usually called eaves, because they have to be constructed exactly under the eaves of the building. These units ensure joint operation of crossbars and racks, which reduces bending moments in the crossbar. In addition, it is easily proven that the maximum bending moment in the cornice nodes of the frames is less than the maximum moment in the beams with the same spans. Their ratio is equal to the ratio of the height of the frame strut to the arrow of the rise of the ridge joint relative to the support joints. Accordingly, unlike beams, frames can cover larger spans.
However, it is the eaves units that have the largest cross-section in frames made of glued wood, which requires significant material consumption. Therefore, research in the field of strengthening such nodes to reduce their cross-section is relevant.
Composite materials are currently one of the leaders in strengthening structures because most composite materials are well resistant to many chemical influences: alkalis, acids, chlorides, sulfates, nitrates, and others. This allows them to be used both in industrial and agricultural construction, where there is a direct impact of the external environment on the structure reinforced with composite materials, and in residential buildings without harm to residents.
After analyzing the stress-strain state by modeling in the LIRA CAD software complex of broken-glued three-hinged frames made of glued wood with integrally glued eaves nodes with a crossbar connection with a rack through toothed spikes along the bisector of the corner reinforced with composite tapes and comparing with similar frames without reinforcement, we can to conclude that such materials can be perfectly combined with structures made of solid and glued wood, allowing to increase the load-bearing capacity while reducing their cross-section.
ANALYSIS OF STL FILES AS INPUT DATA FOR RAPID PROTOTYPING SYSTEMS
Authors: HUSIEV Vitalii , NIKIFOROVA Tetiana
Published: December 2022

Since layers are components of a three-dimensional structure, the very process of cutting layers can directly affect the surface finish and mechanical properties of the structure, which are the two main disadvantages of FDM.

In this regard, the study of different slicing algorithms can deepen the understanding of problems and gaps in FDM, which will help improve the quality of 3D printed building objects.

Cutting algorithms developed for FDM technology are divided into two main groups: planar and non-planar. Complex algorithmic calculations are required to enable the printer to deploy multi-axis plane and non-plane, which is a drawback of these advanced methods.

The article discusses the basic principles of slicing and conditionally outlines the possible difficulties that arise during the implementation of FDM technology, and also describes in detail the structure of the STL format file in binary and ASCII (English American standard code for information interchange) formats.

The general characteristics and limitations of the STL file format were studied.

The description of methods of classic slicing of the model and the mechanisms of implementation of more specific tasks are given.

Current challenges and promising solutions to the problem are presented.
EFFECT OF COOLING RATE OF BASALT MELTS ON STRENGTH OF CONTINUOUS FIBER IN THE DRAWING PROCESS
Authors: BERDNYK Oksana , MAYSTRENKO Alla , AMELINA Nataliya
Published: December 2022

The questions of optimizing the operation parameters of basalt fiber drawing with the view to raising fiber strength are considered. To find out the interdependency between mechanical properties of fibers and thermal characteristics of basalt melt in the drawing process both mathematical modeling and experimental investigations have been undertaken in this study. The accurate numerical model, which describe adequately heat transfer in the drawing process of glass fiber has been used to determine the cooling rate of a melt jet in the vitrification stage. The fiber strength is found to be proportional to the melt cooling rate which is specified completely by the initial conditions of drawing. The results provide the theoretical basis of cnoosing and regulating technological parameters in the production of basalt and glass fibers. Fiber materials of various purpose, obtained from basalt continuous fibers, have high physicochemical characteristics, which are inferior only to expensive composites based on carbon and carbidities. Basalt continuous fibers are characterized by increased strength and elastic module. By strength properties, continuous basalt fibers are compared to glass fibers, and by module
The elasticity exceeds them. The ability to control the properties of fibers in the production of basalt fibers is an important stage in the way of improving and optimizing the technology of their production. Obtaining basalt fibers with high strength and elasticity module requires understanding of the basic factors that affect these parameters. First of all, the chemical and mineralogical composition of the raw material.
THE PROPERTIES SYNERGY OF STEEL AND WOOD IN THE CONSTRUCTIONS OF METAL-AND-TIMBER I-BEAMS WITH A CORRUGATED WALL
Authors: SKLIAROV Ihor , SKLIAROVA Tetiana
Published: December 2022

In modern bearing structures of frame widely used thin-wall steel profiles and constructions from glued timber. Each of these materials has its own advantages and disadvantages in the issues of bearing capacity, rigidity, heat engineering and other physical characteristics. For further improvement of the efficiency of bearing frame buildings it is expedient to consider possibility of combination of positive properties of timber and metal due to their optimal constructive combination.
The purpose of the research is to determine the effectiveness and expediency of using metal-and-timber I-beam profiles in the construction of building frames. The uniqueness of this construction lies in to synthesize the properties of corrugated metal wall, which is well perceived transverse forces in beams, and belts from mass or glued timber, which are able to perceive significant normal stress along fibers and at the expense of the intensity contribute to the guarantee of bending-steep stability of beams.
For a reliable combination of steel profiled sheet and timber belts it is possible to use mechanical suppression of rigid corrugated steel wall in timber belts, or connection with two-component epoxy adhesive, which has good adhesion both with metal and timber surfaces. As a result of the use of metal profiled walls in timber double-walled beams there is an increase in bearing capacity, rigidity of profile, the necessary height of cut and own weight of beams is reduced. All this significantly increases the range of use of double-branch beams with belts from timber and increases their efficiency.
To ensure high corrosion resistance, a galvanized metal sheet is used. Due to the use of timber and thin corrugated wall, the own weight of combined beams is 2-3 times less than the same metal and solid timber beams of rectangular cut, which reduces the cost of building construction. Application of combined metal-and-timber beams is a promising direction of further increase of efficiency of constructions of bearing frame of buildings, combining positive properties of two materials.
Development of a spatial model of a brittle medium for description of processes beyond the limits of a body carrying capacity
Authors: Donenko V. , Ovcharenko O.
Published: December 2022

Existing body models are based on the condition of solidity of the material of which they are made. However, there are tasks contradicting this condition. For example, simulation of a building collapse, simulation of the process of excavation machines. Such problems require the use of discrete models that do not rely on continuity. An interesting model is the model of elastic bodies in computer games, consisting of elastic joints connected in nodes. In this way, a kind of spatial truss is formed. If we concentrate the masses in the nodes, introducing additional bounding spheres for contact calculation, it becomes possible to simulate the process of structure failure due to destruction of connections in the step-by-step calculation. The disadvantage of this model is the lack of theoretical justification with a focus on visual and resource efficiency.

A similar rod approximation of elastic bodies was proposed back in 1956 by Professor A.R. Rzhanitsyn. In his works, he considered a flat plate, taking into account the importance of the elastic characteristics of the body due to the characteristics of the rods of the structure. His ideas did not find wide development due to the lack of technical capabilities of such calculation. In addition, the finite element method proved to be more effective. Nowadays, technical possibilities are available, while the finite element method, while working effectively on solid bodies, has limited possibilities in the problems of body fracture.

It is possible to improve the quality of the results obtained with the rod approximation by changing to the cluster model in which the whole structure is considered as a set of clusters. For conventional shapes and loads, such an approach makes it possible to reduce the error to zero. However, these studies have been performed only for the planar problem.

Spatial bodies can also be approximated by means of rod clusters. To justify this approach, the operation of a single cluster is considered: the equilibrium of a node and the rods attached to this node. This allows us to determine the dependence of the deformations of the cluster on the stiffness of its rods. By equating the deformations of the cluster and the bulk body, which describes this cluster, the necessary value of rod stiffness, which provides elastic characteristics of a real body, is established.
Experimental research of technological properties of concrete mixing compression process under reconstruction conditions
Authors: Basarab V. , Umanets I.
Published: December 2022

The article is devoted to the experimental determination of technological properties of concrete mixtures in the conditions of reconstruction of buildings and structures. The technology of construction works under erection and reconstruction largely depends on the properties of the main building materials, the peculiarities of the environment and also on the technological processes. Today, monolithic–frame construction technology is quite common, so the condition of high–quality performance of works is to determine and effectively use the properties of the concrete mixture, taking into account the methods and modes of technological processes. The relevance of doing inspections of buildings and structures in order to assess their technical condition, both in terms of operation and in terms of reconstruction or modernization was also emphasized. The purpose of work was development of a method of definition of properties of building structure during reconstruction of buildings and constructions and also algorithm of selection of a set of the experimental equipment was established. The analysis of modern methods for determining the properties of building materials and structures and analog–digital information processing devices to establish a real physical picture of changes in the stress–strain state of building structures in terms of reconstruction has been done. The method of determining the main properties of building structures using the theory of planning experiments was given. The scheme of installation of sensors and algorithm of data recording and processing of research results were given. Recommendations of using the main types of sensors and recording equipment to determine the stresses and strains that occur in building structures under operating conditions were given. Recommendations for the creation of research complexes in accordance to objectives and technological requirements were given. The main characteristics of monitoring the technical condition of building structures for the assessment and prediction of deformation processes in real time in order to minimize deviations of system parameters from operational values have been determined.
The construction project is the main subject of management
Authors: Vornichesku O. , Shatrova I.
Published: December 2022

In the article, based on the analysis of literary sources, the concept of "construction organization" is defined, the logistical methods of choosing a place for the construction of a warehouse are considered, and their role in achieving strategic and current management tasks, optimizing production activities, as well as ensuring the effectiveness of cost management of enterprises is determined. Based on the results of the analysis of scientific works, it was concluded that the introduction of a value-oriented approach to the formation of project content and the use of work decomposition for construction projects is urgent and requires clarification and research.

An improved approach to managing the content of construction projects is proposed, which integrates the value components of the requirements and needs of stakeholders, which are presented in the form of a work decomposition structure. Implementation of these processes will allow the project manager and his team to take informed and controlled risk on project execution in order to create value that integrates the values of stakeholders. Meeting the goals of owners and users is fundamental to creating value through the project. In order to effectively create the value of a construction project, the value of users must be aligned with the owner's strategies, embedded in the content of the project and controlled throughout the entire life cycle of the project and its product.

The project manager must be clearly aware of the consequences of not taking into account or ignoring the values of stakeholders, and how to improve or support the value attitudes of stakeholders for effective management of a construction project. It was concluded that the value-oriented management of the content of the construction project can become the basis for a new component of the methodology of project content management, which will allow to include in the content recommendations and relevant documents that regulate the values of stakeholders, and also allow monitoring at all stages of the project life cycle and control of both values and content components.
The theory of early prosthetic loosening — a concise overview
Authors: Mjöberg Bengt
Published: December 2022

The theory of early prosthetic loosening states that loosening is initiated during or shortly after surgery, and that the subsequent progression of loosening is affected by biomechanical factors and periprosthetic fluid pressure fluctuations. Later and secondary to loosening, wear particles may affect the progression of loosening. The loosening may increase subclinically for a long period of time and may, when detected, be misinterpreted as a late occurrence of loosening. This concise overview presents the essential features of this theory as applied to hip replacements. Aspects discussed are insufficient initial fixation, early loss of fixation, biomechanical factors, periprosthetic fluid pressure fluctuations, periprosthetic osteolysis, and wear particles.