bluuebunny/crossref_metadata_2025 huggingface dataset:
Kebudayaan Indis sebagai Warisan Budaya Era Kolonial
Authors: Gultom Adam Zaki
Published: August 2022

Indies culture is a reflection of the lifestyle patterns adopted by a small part of the inhabitants of the archipelago in the colonial period. The Indies lifestyle experienced a glorious period until the beginning of the 20th century. Supporters of Indies culture were not only Dutch, but the indigenous elite group had also entered the Indies' cultural circle. The background to the emergence of Indies culture began with the presence of the Dutch in the Archipelago. The presence of the Dutch caused a meeting of two cultures, namely Western and Eastern cultures, which gave rise to a new culture, namely the Indies culture. At the beginning of its development, cultural change became a mixture of Dutch and Javanese. Channels of the development of Indies culture influenced housing, art, science, and religion. Today's culture can still be seen from colonial buildings, birth ceremonies, marriages, and deaths.Keywords: Indies culture, culture acculturation, colonial heritage.
Akulturasi Budaya Islam dan India: Tinjauan Historis Terhadap Dialektika Kebudayaan Islam di India
Authors: Faidi Ahmad
Published: August 2022

This article discusses the acculturation of Islamic and Indian culture and syncretism of Islam and Hinduism in India. In particular, this article examines the transformation and acculturation of Islam, as the largest celestial religion in the world, with Indian values and culture so thick with Hindu values; the largest Ardli religion in the world. Through the Historical approach, this paper will present the process of historical dynamics between Islamic and Indian culture. The Divine Din, is one of the syncretic religious concepts - coined by Mahmud Ghazan Khan - which marks the collaboration of religion and culture in Indian society during the Mughal Dynasty.
Pola Arsitektur Bangunan Istana Niat Lima Laras di Kabupaten Batu Bara
Authors: Putri Indah Rezeki , Achiriah Achiriah , Azhar Anang Anas
Published: August 2022

This article discusses the Architectural Patterns of the Five Laras Niat Palace in Batu Bara Regency. This palace was founded during the reign of Datuk Mad Yudha. This palace has a mix of European, Chinese and Malay style architecture. This study uses the historical method in four writing steps, namely; heuristics, verification or criticism, interpretation, and historiography, with an architectural approach. This palace has unique carvings and decorations. Some of the carvings contained in the architectural pattern of the Five Laras Intentional Palace building, are: Flower Susun Kelapa, Ricih Wajid, Clove Flower, Banana Heart, Dumping Rice, Single Corn, Tapuk Pinang, Bees Bergayut, Endless Tile, Sula Wheel, Crown Flower, A Herd of Ducks Going Home in the Evening, and Arrange Betel. After the death of the Datuk, this palace was slowly being abandoned by the Kedatuan Lima Laras family, because the condition was no longer feasible. Until now, the Niat Lima Laras Palace remains one of the people's pride and is a major historical tourist destination in Batu Bara Regency.
Tradisi Magido Bantu: Budaya Tolong-Menolong Masyarakat Mandailing di Jorong Tamiang Ampalu, Kabupaten Pasaman Barat
Authors: Hannah Hannah , Siregar Yusra Dewi , Susanti Neila
Published: August 2022

This article discusses the Magido Bantu tradition practiced by the Mandailing ethnic group in Jorong Tamiang Ampalu, West Pasaman Regency. This tradition has become a custom that is commonly practiced before a horja (wedding ceremony) is held. This study uses the historical method in four writing steps, namely; heuristics, verification or criticism, interpretation, and historiography, with a cultural approach. The Padri war that occurred to the Mandailing land area led to the migration of the Mandailing ethnic group who had embraced Islam to the Minangkabau region. This migration also brings with it customs and traditions that were previously practiced, one of which is the Magido Bantu tradition. This tradition has its own procession and implementation procedures that are different from the traditions commonly practiced by the Mandailing ethnic group in other regions. The implementation of this tradition has so many positive values in it, including: an attitude of help, mutual respect, deliberation, and so on. This tradition is still being maintained until now, if a horja is not held it will feel less than perfect.
Masjid Jamik sebagai Jejak Sejarah Peninggalan Komunitas India Muslim di Kota Medan
Authors: Harahap Nur Jannah , Siregar Syahruddin , Purwaningtyas Franindya
Published: August 2022

This article discusses the Jamik Mosque as a proof of the presence of Muslim Indians in the city of Medan. This study uses a qualitative research method with a descriptive approach that aims to find and describe the meaning of the shape of the mosque. The arrival of Indians to East Sumatra was initially recruited to become contract laborers in various tobacco plantations owned by Dutch businessmen. Then the 9th Sultan of Deli, Sultan Makmul al-Rashid, donated his land to the Indians as a place for them to live. The land given by the Sultan of Deli is currently known as Kampung Keling or Kampung Madras. On that land the Indian Muslim community established two mosques, namely: the Jamik Mosque and the Ghaudiyah Mosque. Jamik Mosque was built in 1887 AD, and is one of the oldest mosques in Medan City. In this article, this author examines the history of the Jamik Mosque and its transformation from a place of worship into a religious tourist spot.
Masjid Sri Alam Dunia dan Hubungannya dengan Penyebaran Islam di Sipirok, Tapanuli Selatan
Authors: Pasaribu Ahmat Gunawan , Qorib Ahmad , Muchsin Kasron
Published: August 2022

This article discusses the history and contribution of the Sri Alam Dunia Grand Mosque in the spread of Islam in the Sipirok area, South Tapanuli. This study uses a qualitative research method with a historical approach. The historical approach has four writing steps, namely: heuristics, criticism, interpretation, and historiography. The Great Mosque of Sri Alam Dunia is a silent witness to the struggle of the Mandailing scholars in expanding the symbols of Islam in the South Tapanuli region. At first, the Sri Alam Dunia Mosque was a small surah that was used as a place to study religion. The central figures who contributed to the process of establishing this mosque were Sheikh Abdul Manan Siregar and the Muslims who live around the mosque. This mosque was built around 1926 AD and was completed in 1933 AD. The results of the research that the authors found were that the Sri Alam Dunia Mosque besides having a long history was also a socio-cultural center for the Sipirok community, both in ancient times and today. With these various functions, making the Sri Alam Dunia Mosque one of the icons of pride for Muslims in Sipirok.
Kearifan Lokal Komunitas Kampung Tambak Anyar dalam Menghadapi Baah dan Baah Labung, 1980-2000
Authors: Sayyidati Rabini
Published: August 2022

The problem of this research is the phenomenon of floods and flash floods (baah dan baah labung in Banjarese term) that often hit the Batang Banyu Riverbank community, Tambak Anyar Martapura, Banjar Regency, especially in 1980-2000. The arrival of baah and baah labung every year, apparently does not cause the Batang Banyu Tambak Anyar riverbank community to move to a higher place, but they are actually very strong in surviving in the village, even the settlements are increasing year by year. This research method uses the historical method. Sources of data in this study are through written sources which are the archives of the Head of Padang Tambak Anyar, village monographs from 1980-2000, archives from ANRI (National Archives of the Republic of Indonesia), relevant books. Oral sources based on the results of interviews with informants who know about the events of 1980-2000 and understand the strategies for dealing with baah and baah labung. While the source of objects, is a source that is in accordance with the context of the location of events and objects that are directly related to the events. The results showed that the Batang Banyu Tambak Anyar Martapura community, Banjar Regency, 1980-2000, for 20 years had their own strategy derived from local genius to deal with baah and baah labung so that they are always ready to face this annual natural disaster.
Accurate Solar Wind Speed Prediction with Multimodality Information
Authors: Sun Yanru , Xie Zongxia , Chen Yanhong , Hu Qinghua
Published: August 2022

When the solar wind passes over the Earth, it will cause geomagnetic storms, affect short-wave communications, and threaten the safety of pipelines such as electricity and oil. Accurate prediction of the solar wind speed will allow people to make adequate preparations to avoid wasting resources and affecting people’s life. Most existing methods only use single-modality data as input and do not consider the information complementarity between different modalities. This paper proposes a multimodality prediction (MMP) method that jointly learns vision and sequence information in a unified end-to-end framework for solar wind speed prediction. MMP includes three modules: Vmodule, Tmodule, and Fusion module. Vmodule, which uses pretrained GoogLeNet, is proposed to learn visual representations from the extreme ultraviolet (EUV) images. Tmodule combining one-dimensional CNN with bidirectional long short-term memory (BiLSTM) is applied for learning sequence representation from multivariate time series. Finally, a multimodality fusion method is applied to improve the overall performance. We adopt the EUV images observed by the solar dynamics observatory (SDO) satellite and the OMNIWEB dataset measured at Lagrangian point 1 (L1) to experiment. Comparative experiments have shown that the proposed MMP achieves best performance in many metrics. The ablation experiments also verify the validity of each module and the rationality of the hyperparameter setting.
Modeling of convective-diffusion substance transfer and proposals as for development of an automatic system for monitoring and prevention of pollution of groundwater
Authors: Ihnatkin V. , Horbiichuk M. , Dudnikov V. , Yushkevich O.
Published: August 2022

At the enterprise being studied, due to losses, compounds of chromium accumulated on the soil floor of the workshop and gradually migrated in the zone of aeration of groundwater (aquifer). The level of groundwater in the area of the electric workshop is in the depth of around 10 m (as measured by the Pravoberezhna Expedition), that is, the ways of migration of chromium compounds in the area of aeration was about 10 m). The aquifer layer is located in flood-fed glacial deposits represented by sands of heter-ogenous grains. The sands are overlayed by loamy sand and loam with inclusion of gravel of basement crystalline rock. The filtration coefficient of sands varies from 1 m to 5 m per day, and of loams, from 0.1 m to 1 m per day. For this reason, the loam can only cautiously considered as low-permeable soil overlaying the aquafer. Therefore, it was more sound to consider a scheme of two-layer aquifer, in which the upper layer (loam) is about 1.5-m-thick, and the thickness of the lower layer (sand) is 5 to 15 m. Hexavalent chromium pollution using a model of convective-diffusive flow in an aquifer at a given research location was studied. The flow was defined as linear. The model is formu-lated as a differential equation and comprises the following variables: (C) – concentration of chromium compounds; (t) – time of observation; (Д) – coefficient of filtering (convective) dif-fusion; (Vn) – actual speed of filtration of the flow; (V) – existing speed of filtration of the flow; (na ) – active porosity of the soils forming the aquifer; (K) – filtering coefficient of the aquifer; (I) – hydraulic slope of the flow in the natural environment. Real input data and values of variables were used. Function С (х, t) was calculated and plotted, with its envelope curves determining the maximum concentration of the substance. Proposals are given as for development of an automated monitoring system and avoid-ance of the pollutant.
Development of an automated system for clustering text documents
Authors: Ponomarev I.
Published: August 2022

Grouping texts into groups similar in content is a common task in various fields of human activity. Text document clustering is used to automatically categorize text documents, filter emails, group web pages in search engines, and so on. Automation of this process can signifi-cantly reduce the time spent on this task.
Use of the digital images for measurement of small planar objects geometric parameters with high precision
Authors: Ivon A. , Istushkin V.
Published: August 2022

Web application for measuring of the sizes and the area of small planar objects use the scan data of digital images has been created. The application has a means of programmatically change the sizes of image. The influence of the digital image sizes on the measurement accuracy was investigated. It is shown that with an increase in size by a factor of 6 - 7, the relative error at measuring of the length is no more than 0.25%, and at the measurement of of the area is no more than 1%.
Method for increasing the degree of protection of message encryption based on an algorithm for a constant component in time
Authors: Ivanchuk Y. , Horobets Y. , Koval K.
Published: August 2022

Currently, asymmetric cryptosystems are used everywhere, in document management for cryptocurrencies, providing a high level of protection to end users, relying on the mathematical complexity of calculating a discrete algorithm. But, it is possible to make a cryptocurrency attack on the so-called ephemeral key, which is an auxiliary key when creating a signature. Recent works have shown examples of cryptocurrencies on the random number generator, processor cache, timing attacks. However, these attacks do not work when the numerical value of the bits is unknown. Also, recent work shows the main vulnerability in the case signature, namely the inverse module calculation algorithm that is vulnerable to timing attacks. The article considers the damage of cryptosystems such as DSA and ECDSA before the attack based on the analysis of the variable time of signing the message. A mathematical model has been developed to test this type of lesion, based on lattice attacks. It is shown that if there are enough signatures with the same signing time, it is possible to identify the presence of common bits of ephemeral keys, which will restore the sender's private key. It is proved that the cause of the lesion is the lack of execution of the operation of calculating the inverse module of the time variable, which provides ephemeral key data to the attacker. To solve this problem, an extended Euclidean algorithm for calculating the inverse module for a fixed time is proposed. In this paper, the advanced Euclidean algorithm for calculating the inverse module is improved, namely, its constant time execution is achieved, which prevents timed attacks.
Comparison of the ant colony optimization algorithm and its two modifications
Authors: Boiko L. , Liashenko I.
Published: August 2022

The ant optimization algorithm is one of the effective modern algorithms for finding ap-proximate solutions of the salesman problem and similar problems of finding routes on graphs. The first version of this metaheuristic optimization algorithm was proposed by Marco Dorigo in 1992 [1]. After some time, several modifications of this algorithm have been proposed in the literature. The aim of the study is to conduct a comparative analysis of the ant optimization algo-rithm (Ant Colony Optimization, ASO) [1] and its most successful modifications: Ant Colony System (ACS) [2] and Max-Min Ant System (MMAS) [3]. To do this, the system features of information exchange in the ant colony during the search for food are analyzed. A step-by-step algorithm that simulates the natural behavior of forage ants in finding the shortest path to deliver food to the anthill is presented. A software implementation of the three listed ant algorithms for solving the travelling salesman problem has been developed. Through the interface window, you can enter the number of cities, the number of ants, and the maximum number of iterations, fix the settings of the algorithm and select any of the three algorithms. The program randomly locates cities and selects the starting city for each ant. The software product is multi-threaded, i.e. during the calculations the interface is not blocked, which allows you to control the process of program execution, namely: start, pause, stop, resume work. The results of the program are: vis-ualization of the shortest route found, the length of this route and the smallest iteration number, which achieves the shortest route. Comparative analysis of the results allowed us to draw the following conclusions: 1) With well-chosen algorithm settings, iterative methods usually give a result close to optimal, however, the number of iterations required for this may differ significantly. 2) The study of the travelling salesman problem by ant algorithms is experimental rather than theoretical. The result very much depends on the parameters of the algorithm settings, but the theoretical study of these dependencies remains relevant and unresolved.
Aggregation arrangement features of network interface channels in multiprocessor computing systems
Authors: Moroz D.
Published: August 2022

The paper identifies ways to increase the multiprocessor computing system performance by reorganizing the architecture of its network interface. It is shown that the computational parallelization performance significantly depends on many factors, the most essential of which is the data transfer between the boundary nodes of a multiprocessor system, which is the algorithm's slowest part and can significantly reduce the effect of increasing the number of processors. Hence, it was established that improving the multiprocessor systems performance by reorganizing the network interface structure is relevant interesting nowadays, and its study is at the active development stage. The research aims at the aggregation arrangement of network interface channels in multiprocessor computing systems. It is shown that the main channel aggregation mode advantage is that the data interchange speed is significantly increased, as well as the reliability of the cluster system.
Mathematical model of selective infrared heating application in the manufacture of glass-plastic products
Authors: Siedachova K. , Manko T.
Published: August 2022

Today's information resources offer a variety of rational composite structures hardening methods and equipment design for these processes. In parallel, there is literature that offers the mathematical modeling of the hardening process of polymer composite materials. Due to the complexity and long duration of the structures polymerization process, there is a need to create a mathematical model for polymerization results predicting, using different temperatures and infrared radiation (including selective) time. Performed the comparative analysis of different mathematical models based on the Navier-Stokes equation. Owing to the development of numerical methods, such as the finite difference method and the finite element method (MCR and FEM), new opportunities have opened up for a more complete physical features calculations of the studied processes. The polymerization process of the composite in time can be represented by the state function s (t), which is equal to one at the beginning of the process at t = 0, and zero at the end. The hardening process is characterized by a certain polymerization rate v, which shows which part of the composite is synthesized per unit time. A mechanism explaining the kinetics of the reaction rate v1 was proposed by Arrhenius. Accordingly, for any chemical reaction or any change in the physical state of the body, the molecules must overcome the energy barrier, which is called the activation energy. After analyzing the classical equations, a mathematical model was proposed, which describes the process of hardening the composite material under the combined action of heat flux and infrared radiation. A method for determining the parameters of a mathematical model based on the results of experimental research is proposed. A method of accounting for the parameters of infrared radiation in the presented mathematical model, which can be used for the selected spectrum of the radiation and the filters was used. Based on the Arrhenius Equation, a mathematical model was developed that describes the process of changing the physical and mechanical characteristics of composites during hardening. Having determined the constants of the curing process a1, a2 and Ea - the activation energy of the polymerization reaction, it is possible to estimate the degree of hardening of the composite at any time.
Pre-processing of the x-ray to increase the sensitivity of visual analysis
Authors: Akhmetshina L. , Knysh A. , Mitrofanov S.
Published: August 2022

In the field of medical imaging, it is fundamental to improve medical images of different physical nature to increase the likelihood of diagnosis based on them. X-rays are one of the oldest techniques used to analyze dense tissue abnormalities. Insufficient quality of X-rays is due to both the physical characteristics of the equipment used and the process of their for-mation. There are two main approaches to digital image processing - spatial methods, which are based on direct manipulation of the pixels of the original image and frequency conversion methods. These image processing methods consider pixel values as exact constants, while there are objective reasons for the presence of digital uncertainties, which are due to loss of information when displaying objects from three-dimensional (3-D) space, to 2-D projections, uncertainty of the gray level, statistical randomness, etc. To account for these factors, new methods are currently being developed that are based on the ideas of ambiguity. This approach is a kind of nonlinear transformation that allows you to take into account factors that are ambiguous. Fuzzy methods are based on mapping gray brightness levels to a fuzzy plane using membership transformations. The image is represented as a mass of fuzzy sets relative to the analyzed property with the value of the membership function that varies in the range [0-1]. The aim of this article is to assess the impact on the quality of the bright characteristics of the X-ray image of the results of using a combination of spatial methods of histogram equalization, fuzzy intensification and improvement in the frequency domain. The proposed algorithm provides a redistribution of the brightness of the histogram in the middle range of gray levels, which corresponds to the best visual (according to Weber - Fechner's law) per-ception, allows to increase the contrast and resolution of the image. There is a significant effect on the result of improving the image of the parameters of fuzzy intensifications. Experimental results are given on the example of real images.
Development of self-learning intelligent decision support system to control of steel production technological processes
Authors: Ziborov I. , Zheldak T.
Published: August 2022

Taking to the consideration the current state of converter production and measuring equipment at Ukrainian enterprises, it follows that the smelting process is based on a complex dynamic non-deterministic system. The process is complicated by the large number of param-eters, the inability to accurately identify the state of the system at any time, as well as the dif-ficulty of forecasting system requirements. Preliminary analysis has shown that in the conditions of this production converter manufacturing efficiency increase can be reached at the expense of: - reducing the cost of raw materials, such as iron-containing additives, deoxidizers, non-metallic elements in steel; - reduction of melting time, especially blowing time; - reducing defects and improving product quality. It is proposed the architecture of integrated control DSS in converter steel production based on the principle of minimal interference in the production process. The primary aim of such a system is to predict the behavior of the production process, providing the recommen-dations for its impact in order to optimize the external criterion of efficiency. The source and amount of data required for the database formation and DSS knowledge base are substantiated. The mechanism of self-learning in the course of technological tasks is described. The structural scheme of self-learning DSS, self-learning algorithm, which is mainly featured with modularity, is offered in the paper. The approach allows testing of any number of existing algorithms for learning, forecasting and optimization in order to further select the most effective ones, modifies the system in the future and allows the parallel use of a number of com-peting algorithms. The operator has the opportunity to choose as a control solution one of the proposed systems, or the formation of its own, better by a certain external criterion of result quality. Based on the suggested software structure, a number of tasks are formulated that need to be performed to build a decision support system. It is also considered to apply the mathematical apparatus of fuzzy sets to describe certain pa-rameters of the technological process and quality criteria, fuzzy neural network for modeling reasoning processes and the choice of algorithm for its training.
Open Satellite Data for Global Greenhouse Gas Monitoring
Authors: Kavats O. , Khramov D. , Sergieieva K. , Vasyliev V.
Published: August 2022

Open satellite concentration data for the main greenhouse gases (CO2, CH4, N2O) are considered in terms of their possible use for local, regional, and global monitoring. The main data characteristics are provided. The satellite products most suitable for global monitoring of greenhouse gas concentrations are specified. The disadvantages of existing satellite data are analyzed.
Automated system for regulating the thermal parameters of cord heat treatment furnaces with optimization of the gas-to-air ratio at a certain value
Authors: Ignatkin V. , Gorbiychuk M. , Dudnikov V. , Yushkevich O. , Bolonny V. , Tikhonov V.
Published: August 2022

The system of automation which allows to control autonomous use of gas with preserva-tion of quality of technological process is resulted. The given algorithm, corresponding programs, technical means of automation system carry out regulation of air expenses at any values of quantity of fuel (gas). The gas-to-air ratio is determined experimentally from the analysis of exhaust gases for a specific type of furnace. The control algorithm is implemented using a microprocessor controller, and includes: PID control - law (proportional-integral-differential), linearization, which processes the input values of gas and air and reduces measurement errors of flow sensors and especially in the initial part of the sensor range; piecewise linear approximation, which allows: to implement the specified dependence of the ratios, flexibility and the ability to adjust and change the parameters of the control circuits, which adapts the control system to specific production conditions. The controllers can be configured both at the lower level of the distributed ACS TP and communicate with the upper level through the digital serial communication channel, and used as a stand-alone device. The meter of the measured and calculated parameters of the corresponding physical quantities displays them on the matrix board of its front panel. A computer with a printer located on the panel shop is connected to the meters. Devel-oped programs that implement control algorithms written in Delphi 3.0 using BDE (Bor-landDatabaseEnqine). Technological programs and a set of documentation for the operation of the system have also been developed. The system is focused on daily work in conjunction with meter gauges. Instrument read-ings are taken at intervals of one to one hundred and twenty minutes, depending on the settings made on the front panel. Information from the meters is stored in the database "Infoterm.db", as well as in the archival database "Archive.db". Moreover, the database "Infoterm.db" is released from the data every day before the launch of system programs. The technological program for heat meters is made on the basis of preliminary calcula-tions of measuring diaphragms from the manufacturer with observance of metrological and technological conditions (metrological certification, etc.). If necessary, the software is configured.
Mobile face detection algorithm inference traits
Authors: Khabarlak K.
Published: August 2022

An ever-growing number of applications uses mobile face detection. However, most of the modern research papers focus on increasing detection quality while paying no attention to detection time. This means that many of the state-of-the-art algorithms are inapplicable on mo-bile due to excessively large detection time. The goal of this this paper is to adapt 5 of the face detection algorithms for inference on mobile devices and analyze their performance characteristics. These algorithms include es-tablished methods: Haar Cascades, LBP, HOG, as well as, novel neural-network-based algo-rithms: MTCNN, BlazeFace. The main research material. We conduct the experiments on three scenes typical for mobile face recognition systems: when there are no faces, 1 or 2 faces. For testing we have im-plemented an Android application. 2 widespread processors, namely Snapdragon 800 and 845, were selected for time measurements. Having tested the algorithms, we note that all them can run at real-time speeds for images of size 128x128 and only 2 of them (LBP, HOG) on 256x256 on the faster Snapdragon 845. On the slower Snapdragon 800 only BlazeFace, LBP, HOG can run at resolutions not higher than 128x128. We suggest not using Haar or LBP cascades in practice as their accuracy is quite low. Conclusions. Based on the research conducted, we suggest that for the practical use-cases the best algorithms are: 1) BlazeFace, which has stable and accurate predictions, how-ever, the method accepts only two image resolutions as input, in addition, higher inference time for empty images than for images with faces is untypical; 2) MTCNN, thanks to the cascaded architecture, conserves the resources when input frames have no faces. This algorithm is also the most adaptive and can run at resolutions as low as 32x32 given that the faces are quite large; 3) in case if inference time is of the most importance, we suggest using HOG-based algorithm. In this paper we have also shown that cascaded algorithm architecture dynamically changes execution time depending on image content and its complexity, which follows how we, humans, think. We hope that the novel practical results obtained, will increase the use of the above-described methods in mobile applications and will boost the development of the algorithm modifications.
The structure and algorithm of the intelligent decision support system for the identification of cultural values
Authors: Martynenko A.
Published: August 2022

The article discusses the algorithm of the work of an intelligent decision support system for identifying cultural values and the user with it, the issues of determining the main scenarios of work and restrictions. The author provides the expediency of dividing the software implementation of the system into separate modules, which will make the process of scaling the system less labor-intensive and more efficient. A set of tools for solving the problem is presented, where a decision is made as such. Moreover, for the identification and analysis of different types of cultural property objects, different types of neural networks can be provided. It also notes the complexity and complexity of the approach to solving the problem, certain prospects and ways of further research of this subject area. The use of the system specified in the article, built on the basis of neural networks and modern software and hardware, will allow the user, in conditions of uncertainty and in conditions of limited time, to receive additional help in making decisions in identification and CC, the use of a system of this type is relevant and promising. The approach proposed by the author to the creation of this system is convenient and effective, has a powerful potential for further development and improvement of the system. The combination of databases and knowledge in one system, together with a powerful mathematical and analytical apparatus, will allow reaching a higher level of identification and analysis of objects of cultural property in comparison with conventional databases and catalogs. The conclusions set tasks for solving organizational, legal and technical issues related to the implementation and operation of the system.
Mathematical model of force and deformation interaction of strip and rolls during rolling with intense plastic deformation
Authors: Bohdan D. , Balakin V. , Shtoda M. , Nykolayenko Yu.
Published: August 2022

The operating conditions of oil and gas pipes determine strict requirements for their structure and properties, in particular, corrosion resistance. It is known that the mechanical properties and corrosion resistance of steels significantly depend on the degree of grinding of the grain and the homogeneity of the structure. One of the ways to form a fine-grained structure, increase mechanical and corrosion properties is intense plastic deformation. In order to determine the effect of intense plastic deformation on the deformation treatment of steel strips, a scheme of a simple rolling process with a blank roller was developed. The possible influence of intense plastic deformation in such a scheme on the structure of the metal required the development of a mathematical model, the purpose of which is to determine the magnitude of the true plastic deformation. Based on the results of mathematical modeling, laboratory experiment in rolling strips and determining their corrosion resistance in the proposed scheme, it is envisaged to develop an industrial installation for processing the inner surface of pipes. The mathematical model of the proposed rolling scheme with a certain value of intense plastic deformation is expected to be described in four stages. The first is to determine the force of pressing the idler roller into the material at a fixed amount of force applied to the lever of the mechanism. The second is to determine the magnitude of the pressure force of the idler roller on the rolled strip and the working roll. The third is to determine the depth of indentation of the roller in the strip at a given load in the absence of rotation of the rolls. Fourth - determining the actual and equivalent degree of deformation of the strip by a blank roller. Conclusion. Comparison of equivalent deformation roller and deformation rollers with a diameter of 180 mm with compression =0,2 мм; =1,15; =0,139 shows an order of magnitude greater deformation of the roller. The mathematical model of the offered way of rolling with intensive plastic deformation is developed, the carried-out calculations give the chance to assume considerable changes of structure of material, reduction of the sizes of grains. The latter should certainly be reflected in the change of physical and mechanical properties of the material, namely the increase of its corrosion resistance and the level of mechanical properties.
Web-system for modeling surfaces based on Catmull-Rom patches
Authors: Demchyshyn A. , Burienkov Y.
Published: August 2022

Today, surfaces play an important role in the work of designers, scientists, artists, sur-geons and other professionals involved in creating innovative products. Development of uten-sils, furniture, automobile chassis, phones, clothes, buildings, even human bodies involves geometrical modeling of surfaces. NURBS modeling is the technology of non-uniform rational B-splines creating smooth forms and models that have no sharp edges. The characteristic makes NURBS as the analytical model of choice in Autodesk 3ds Max, Blender, Autodesk Ma-ya, ZBrush, and other modeling systems. A generalizing characteristic of the given software systems is the use of a monolithic architectural style of software development, which is typical for desktop applications. Desktop software systems require installation on a local computer, which in turn binds the user to a specific operating system. NURBS accurately describe conical surfaces. Although each control has its own weight, and each weight has a local effect on the surface, a change in the weight of one vertex leads to a change in the entire surface. One of the main requirements for 3D object modeling software is the ability to change the shape of the surface freely as it passes through all control points. An algorithmic model of the Hermit surface construction under the Catmull-Rom condition and nonzero surface torsion vectors is obtained. It is shown that the Catmull-Rom condition makes it possible to glue individual patches with first-order smoothness, which is a guarantee of ergonomic surfaces. It is shown that a single control point has a local effect on the surface, namely on the 12 sur-rounding patches. The development of a software system for modeling the surfaces of objects with the client part in the form of a web application, which is based on the architectural style of SPA, showed that the user experience of such an application is close to the experience of using a desktop program. At the same time, the SPA application does not require installation and successfully runs on both stationary and mobile devices.
Features of metal structures digital images containing carbides investigation
Authors: Zakharov A. , Selivyorstova T. , Selivyorstov V. , Balakin V. , Kamkina L.
Published: August 2022

The analysis of microsections requires the involvement of highly qualified experts in the field of materials science, which, in turn, does not exclude the influence of the "human factor". On the other hand, the issues of increasing the objectivity of identifying the properties of metals and alloys require the use of modern data processing methods, for example, artificial intelligence in solving problems of classification and identification of macro and micro structures.The paper presents an overview of studying macro and micro structures containing carbides process, determining the specific features inherent in these images, and proposing an information model for their processing. The article is devoted to the development of an information model intended for the analysis of metal structures digital images with carbide inclusions. The analysis of literary sources is carried out, it is established that the study of metal structures is an important tool for assessing qualitative characteristics. The presence of carbides in the metal structure has a significant impact on its quality. A review of the methodology for studying the structure of a metal is given, and the importance of metal structures image processing stage is determined. The main methods for obtaining digital images of the alloy structure are described. Samples of metal structures with carbides are presented. A procedure for digital processing of metal structures images with kibide inclusions is proposed, which consists of image conversion to grayscale, contrasting, and threshold binarization. An analysis of the results of metal structures processing images made it possible to identify areas with carbide inclusions, however, additional artifacts that were not carbides were found in some images. Balancing by the binarization threshold in this case does not improve the detection of carbide inclusions network due to the lack of contrast. Histograms demonstrate the presence of information features in a wide range of gray colors, so for this class of images, more sophisticated image processing technologies need to be developed. In the course of digital images features study of metals and alloys metal structures containing carbides, it was: an information model for processing metal structures containing carbide inclusions is proposed; the proposed information model is applied to digital images of metal structures; it was found that some images of metal structures are characterized by low contrast, which leads to the selection of background artifacts, except for areas with carbide inclusions; the development of complex mathematical methods for the detection of carbide inclusions in images of metal structures characterized by low contrast is proposed. Thus, the article shows the results of carbide inclusions of the using the digital image processing procedure. The advantages and disadvantages of the approach are shown, the directions for its improvement are determined.
Investigation of deformation zone parameter at multichannel angular extrusion
Authors: Zubko Yu. , Frolov Ya. , Kuzmina O. , Samsonenko A. , Bobukh O.
Published: August 2022

The paper presents the results of research on the modern process of multichannel angular extrusion. Analysis of the literature has shown that the use of non-equal angular extrusion leads to a smaller size of microstructure in one pass than equal-angular compression. Accordingly, non-uniform angular extrusion is well suited for the formation and changing of fine-grained metal structure, and also significantly increases its strength, ductility and toughness due to shear deformation. However, the known methods of non-uniform angular pressing are mostly used for the manufacture of intermediate products (rods, strip), which to achieve the required level of properties require additional processing. Additional thermal or deformation processing could have a negative impact on the structure and properties of the product. Thus, the urgent task is to develop and study processes in which intense plastic deformation is the final operation. One of these processes is multichannel angular extrusion. The aim of the study is to determine the characteristics of the deformation zone and plastic flow of the metal in this process. The analysis of the grid has allowed to identify certain elements of the deformation zone. A special tool has been developed to provide multi-channel angular extrusion. The peculiarity of the developed tool is the matrix integrated into the container and made collapsible. This design provides removal of the extruded profile after processing. It has been found that the central layers of metal deform more easily, and the layers, the flow of which slows down due to contact friction between the tool and the workpiece, deform with a delay. The adequacy of the mathematical model of the process developed in the QForm © program was also confirmed with the help of experimental data.
Assessment of using shungite rock technological feasibility in the production of manganese agglomerate
Authors: Kamkina L. , Mianovska Ya. , Projdak Yu. , Mishalkin A.
Published: August 2022

Industrial experience in the production of manganese sinter shows that the known technological proposals do not provide an increase in the productivity of sintering machines and the necessary strength properties of fluxed manganese sinter. Known methods of sintering fluxed manganese agglomerate, characterized by increased mechanical strength and high moisture resistance. The disadvantage of these measures is a significant complication of the technological line of sinter production and an increase in energy costs. In this regard, one of the main directions is the development of charge compositions and parameters of the sintering process of manganese raw materials. The purpose of the study is the analysis of physical and chemical processes, experimental research and the development of innovative technological solutions and recommendations for attracting shungite rock to the metallurgical production to expand the raw material base of the mining and metallurgical complex. Calculations of the thermodynamic equilibrium of oxide systems adequate to sinter systems have been performed, and the chemical composition of the phase components of manganese agglomerate microstructures has been studied. The rational content of shungite in the sinter charge has been established, which ensures the production of agglomerate with specified characteristics (strength, usable yield, manganese content) is 12...13% of the mass of the initial charge. A further increase in its particles in the sinter mixture leads to a decrease in strength and the release of suitable heat. Increasing the degree of dispersion of shungite to 0-2 mm allows increasing the level of use of shungite carbon as a fuel without increasing the amount of traditional fuel - coke - for the process.
Study of the effect of modification on the rheokinetics of epoxyamine composition curing using rheometry and differential scanning calorimetry
Authors: VYALOV A. I. , SHCHERBINA A. A. , GORBUNOVA I. YU. , OLIKHOVA YU. V. , LOBAN O. I. , DYAKONOV V. A.
Published: August 2022

ITo obtain structural adhesives, a new method for modifying an epoxyamine matrix with an LPP brand adduct synthesized from oligoetherepoxide (Laproxide) in the presence of an excess of piperazine is considered. Curing kinetics of compositions has been studied by rheometry and DSC. Based on DSC data, equations that simulate curing at different stages of the process were proposed. The gelation times of the compositions have been established.
Characterisation of aluminium industrial wastewater and investigation of recovery alternatives
Authors: Kaya Hicran , Güneş Elçin , Aydın Nesli
Published: August 2022

Aluminium industry is one of the largest sectors and wastewater generated from this industry could cause crucial environmental problems due to its high heavy metal concentration and conductivity. Therefore, this study aims to determine the characterisation of the wastewater discharged from the two aluminium facilities by considering water recovery potential. While Facility-A produces stainless steel kitchenware, such as pots and pans, In Facility-B, anodised coating takes place from secondary aluminium and wastewater is generated from the units where anodised coating baths and control processes are carried out. For the analyses, the wastewater composite samples from different sections, such as washing, sand-blasting and dyeing in Facility-A were taken in 2 and 24 hours. In Facility-B, three 2-hour composite influent water samples and an effluent sample from chemical wastewater treatment were taken to determine conductivity, pH, chemical oxygen demand (COD), total suspended solids (TSS), etc. As a result of the analyses made, a high value of TSS was detected at all sampling points in Facility-A. It was also seen that the conductivity after demineralisation process in Facility-A was below 30. In Facility-B, it was determined that while the pH obtained from two influent samples was below the discharge limits and showed acidic characteristics, one sample was very basic with a pH value of 12.19 and exceeds the upper limit of discharge. All influent samples in Facility-B show high TSS content in comparison with discharge limits specified in the regulation.