Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/185
K. Levchuk, O. Levchuk, L. Husak, N. Havryliuk, O. M. Lozovskyi
Purpose. To describe the regional organizational features of educational services proposed by higher educational institutions (HEIs) of Ukraine in wartime. Methodology. Normative documents regulating the educational process in Ukraine in wartime conditions were analyzed. Observations, interviews, online surveys, and questionnaires followed by mathematical and statistical analysis constituted the empirical basis of the research. The selection of respondents was carried out in HEIs which are not located in the zones of active hostilities or in the immediate vicinity of them. Findings. Since the beginning of the full-scale war in Ukraine, students of higher education have had problems of an infrastructural, institutional, and personal nature. Mixed training has become the optimal form of training for HEIs which are not located in the zones of active hostilities or in the immediate vicinity of them. To ensure continuous learning, higher education institutions should offer students flexible options for education; establish communication between students and experienced and qualified teachers; guarantee access to relevant educational materials; create online learning platforms; provide students with mental health support; cooperate with other universities and educational establishments; and make any necessary adjustments to programs and services. For mixed learning formats, it is best to apply the following educational technologies: online learning platforms; virtual classrooms for lectures and group discussions; video conferencing tools; digital libraries; mobile learning software; and messengers. Originality. Access to high-quality educational opportunities in higher education institutions in the conditions of war in Ukraine requires the introduction of flexible forms of education. Mixed training will be effective in certain regions of the country under acceptable safety conditions. Practical value. Assessment of access for higher education learners to educational resources and technologies in the conditions of war in Ukraine has been performed. The effectiveness of distance education has been studied. Strategies have been developed to solve the problem of ensuring the continuity of education in active combat zones or in the immediate vicinity of them.
{"title":"Regional features of Ukrainian higher education in wartime conditions","authors":"K. Levchuk, O. Levchuk, L. Husak, N. Havryliuk, O. M. Lozovskyi","doi":"10.33271/nvngu/2024-1/185","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/185","url":null,"abstract":"Purpose. To describe the regional organizational features of educational services proposed by higher educational institutions (HEIs) of Ukraine in wartime. Methodology. Normative documents regulating the educational process in Ukraine in wartime conditions were analyzed. Observations, interviews, online surveys, and questionnaires followed by mathematical and statistical analysis constituted the empirical basis of the research. The selection of respondents was carried out in HEIs which are not located in the zones of active hostilities or in the immediate vicinity of them. Findings. Since the beginning of the full-scale war in Ukraine, students of higher education have had problems of an infrastructural, institutional, and personal nature. Mixed training has become the optimal form of training for HEIs which are not located in the zones of active hostilities or in the immediate vicinity of them. To ensure continuous learning, higher education institutions should offer students flexible options for education; establish communication between students and experienced and qualified teachers; guarantee access to relevant educational materials; create online learning platforms; provide students with mental health support; cooperate with other universities and educational establishments; and make any necessary adjustments to programs and services. For mixed learning formats, it is best to apply the following educational technologies: online learning platforms; virtual classrooms for lectures and group discussions; video conferencing tools; digital libraries; mobile learning software; and messengers. Originality. Access to high-quality educational opportunities in higher education institutions in the conditions of war in Ukraine requires the introduction of flexible forms of education. Mixed training will be effective in certain regions of the country under acceptable safety conditions. Practical value. Assessment of access for higher education learners to educational resources and technologies in the conditions of war in Ukraine has been performed. The effectiveness of distance education has been studied. Strategies have been developed to solve the problem of ensuring the continuity of education in active combat zones or in the immediate vicinity of them.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"33 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/203
V. Dudin, M. Polehenka, O. Tkalich, A. Pavlychenko, H. Hapich, H. Roubík
Purpose. Ecological and economic assessment of the effectiveness of implementing bioenergy technologies for processing organic waste in conditions of technogenic and military risks, while also addressing the need to reduce the extraction of fossil fuels. Methodology. The advanced global experience in bioenergy development is analyzed and considered using modern methods for calculating the technological parameters of biogas plants and determining the economic indicators of their effectiveness. The techno-economic evaluation and justification of the prospects of biogas energy are performed considering the regulatory framework and legislation of Ukraine and the European Union. Findings. With the development of individual biogas plants, the daily output can make approximately: biogas – 370 m3, electricity – 700 kW, thermal energy – 1100 kW. The total value of realized resources per year of operation amounts to €60,370 (of which: electricity – €31,467; thermal energy – €10,907; liquid organic fertilizers – €17,996). With investments of around €270–300 thousand and an annual profit of €21,870, the payback period of investments reaches 12–13 years. Originality. The scientific justification for the prospect and necessity of developing biogas energy in Ukraine has been established to improve overall energy security and the eco-economic efficiency of developing low-waste technologies alongside reducing the extraction of energy resources and greenhouse gas emissions. Assuming the improvement of the regulatory framework for biogas extraction and implementation in line with EU standards, as well as grant funding from various partner countries, the payback period could be reduced from 12 to 5–6 years, which is an acceptable indicator for small private enterprises. Practical value. The practical implementation of the proposed perspectives for the development of Ukraine’s energy sector in the conditions of post-war recovery will reduce dependence on fossil fuels, increase the overall level of environmental and economic efficiency in the energy sector. The possibility of reducing the payback period of capital investments in “green energy” projects by half for farm enterprises has been justified, which positively impacts the environment and energy security of Ukraine.
{"title":"Ecological and economic assessment of the effectiveness of implementing bioenergy technologies in the conditions of post-war recovery of Ukraine","authors":"V. Dudin, M. Polehenka, O. Tkalich, A. Pavlychenko, H. Hapich, H. Roubík","doi":"10.33271/nvngu/2024-1/203","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/203","url":null,"abstract":"Purpose. Ecological and economic assessment of the effectiveness of implementing bioenergy technologies for processing organic waste in conditions of technogenic and military risks, while also addressing the need to reduce the extraction of fossil fuels. Methodology. The advanced global experience in bioenergy development is analyzed and considered using modern methods for calculating the technological parameters of biogas plants and determining the economic indicators of their effectiveness. The techno-economic evaluation and justification of the prospects of biogas energy are performed considering the regulatory framework and legislation of Ukraine and the European Union. Findings. With the development of individual biogas plants, the daily output can make approximately: biogas – 370 m3, electricity – 700 kW, thermal energy – 1100 kW. The total value of realized resources per year of operation amounts to €60,370 (of which: electricity – €31,467; thermal energy – €10,907; liquid organic fertilizers – €17,996). With investments of around €270–300 thousand and an annual profit of €21,870, the payback period of investments reaches 12–13 years. Originality. The scientific justification for the prospect and necessity of developing biogas energy in Ukraine has been established to improve overall energy security and the eco-economic efficiency of developing low-waste technologies alongside reducing the extraction of energy resources and greenhouse gas emissions. Assuming the improvement of the regulatory framework for biogas extraction and implementation in line with EU standards, as well as grant funding from various partner countries, the payback period could be reduced from 12 to 5–6 years, which is an acceptable indicator for small private enterprises. Practical value. The practical implementation of the proposed perspectives for the development of Ukraine’s energy sector in the conditions of post-war recovery will reduce dependence on fossil fuels, increase the overall level of environmental and economic efficiency in the energy sector. The possibility of reducing the payback period of capital investments in “green energy” projects by half for farm enterprises has been justified, which positively impacts the environment and energy security of Ukraine.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"2019 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140416005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/032
L. Solonenko, K. Uzlov, T. Kimstach, Ya. V Mianovska, D. Y. Yakymenko
Purpose. To establish influence regularity of sand, water and clay preparation conditions on vitability of frozen mixtures made from combinations of these components and to increase the castings quality in foundries, as well as to improve technologies for artificial freezing of soils for underground constructions. Methodology. In this research, sand, clay, and water are used. Ice quality is estimated visually after water freezing at -15 °C in glass tubes. Frozen mixtures’ vitability at -15 °C is studied on beam-type samples. As indicators of survivability, the time to 1 mm bending of samples on supports and the time to their destruction are accepted. The time is recorded with a stopwatch, the temperature with an alcohol thermometer, the mass with electronic scales and the deflection arrow with a clock-type indicator. Findings. The presence and amount of water-soluble impurities in rare water significantly influence the nature, size and distribution of gas bubbles in ice, as well as frozen sand-water mixtures vitability. Frozen mixtures’ survivability increases with water content in them increasing, and, for sand water mixtures, survivability is maximum if ice has a homogeneous structure. Among mixtures with clays, the mixture with non-swollen kaolin clay has the greatest vitability. Regarding survivability, recommendations for manufacturing products from frozen foundry mixtures have been developed. Originality. For the first time, deformation change kinetics (bending arrows) under the influence of beam-type samples’ self-mass from mixtures of quartz sand and water and quartz sand, clay and water frozen at -15 °C, which have been previously prepared in different ways, have been investigated. Insights into the influence of various factors and ice quality on the vitability of frozen mixtures have been further developed. Practical value. The obtained results can be useful for expanding ideas about natural frozen soils’ behavior during their cyclic temperature changes, soils artificially frozen during mine shafts elaboration, escalators’ and junctions’ tunnels, etc. when constructing subways. In foundries, the developed recommendations will reduce technological losses and will improve casting quality made using frozen casting molds and cores from sand-water or sand-clay-water mixtures, castings’ patterns and their pouring systems from sand-water mixtures.
{"title":"Influence of ice structure on vitability of frozen sand-water and sand-clay mixtures","authors":"L. Solonenko, K. Uzlov, T. Kimstach, Ya. V Mianovska, D. Y. Yakymenko","doi":"10.33271/nvngu/2024-1/032","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/032","url":null,"abstract":"Purpose. To establish influence regularity of sand, water and clay preparation conditions on vitability of frozen mixtures made from combinations of these components and to increase the castings quality in foundries, as well as to improve technologies for artificial freezing of soils for underground constructions. Methodology. In this research, sand, clay, and water are used. Ice quality is estimated visually after water freezing at -15 °C in glass tubes. Frozen mixtures’ vitability at -15 °C is studied on beam-type samples. As indicators of survivability, the time to 1 mm bending of samples on supports and the time to their destruction are accepted. The time is recorded with a stopwatch, the temperature with an alcohol thermometer, the mass with electronic scales and the deflection arrow with a clock-type indicator. Findings. The presence and amount of water-soluble impurities in rare water significantly influence the nature, size and distribution of gas bubbles in ice, as well as frozen sand-water mixtures vitability. Frozen mixtures’ survivability increases with water content in them increasing, and, for sand water mixtures, survivability is maximum if ice has a homogeneous structure. Among mixtures with clays, the mixture with non-swollen kaolin clay has the greatest vitability. Regarding survivability, recommendations for manufacturing products from frozen foundry mixtures have been developed. Originality. For the first time, deformation change kinetics (bending arrows) under the influence of beam-type samples’ self-mass from mixtures of quartz sand and water and quartz sand, clay and water frozen at -15 °C, which have been previously prepared in different ways, have been investigated. Insights into the influence of various factors and ice quality on the vitability of frozen mixtures have been further developed. Practical value. The obtained results can be useful for expanding ideas about natural frozen soils’ behavior during their cyclic temperature changes, soils artificially frozen during mine shafts elaboration, escalators’ and junctions’ tunnels, etc. when constructing subways. In foundries, the developed recommendations will reduce technological losses and will improve casting quality made using frozen casting molds and cores from sand-water or sand-clay-water mixtures, castings’ patterns and their pouring systems from sand-water mixtures.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"58 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140408384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/020
F. Bahloul, A. Hafsaoui, A. Idres, F. Boutarfa, A. I. Kanli, A. Benselhoub
Purpose. To find a relative methodology which will help the systematic analysis of the parameters influencing the blasting plan and a better understanding of the mechanisms of fragmentation of rocks with explosives. Methodology. The approach uses the Kuz-Ram model to predict blast performance. Three models were used to consider the effect of blast plan geometry on the quality of blast rock fragmentation. A new blasting plan is proposed using the Langefors method and the Kuz-Ram empirical model. The results obtained were compared with those of previous blasts. Findings. The research results show that the optimal fragmentation of 89.2 % with a balance between fine particles of 5.7 % and outsized blocks of 5.1 % of rocks by explosive in the Heliopolis aggregates quarry is highly dependent on the type and quantity of explosive used, the direction of initiation, and the cracks caused by the waves of shock (back effects). Originality. The present work is concerned with the problem of the quality of rock blasting which will ultimately affect the costs of drilling, blasting and the efficiency of all mining operations. Parameters influencing the processes of rock fragmentation during mining operations are specified. Practical value. The purpose of blasting is to disaggregate the material in order to facilitate its recovery by the extraction equipment. It is therefore necessary to correctly define the blasting plan by optimizing these geometric parameters, the nature and the quantity of explosive, the initiation sequences aim to have the right particle size distribution.
{"title":"Influence of the rock mass structure and the blasting technique on blast results in the Heliopolis quarry","authors":"F. Bahloul, A. Hafsaoui, A. Idres, F. Boutarfa, A. I. Kanli, A. Benselhoub","doi":"10.33271/nvngu/2024-1/020","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/020","url":null,"abstract":"Purpose. To find a relative methodology which will help the systematic analysis of the parameters influencing the blasting plan and a better understanding of the mechanisms of fragmentation of rocks with explosives. Methodology. The approach uses the Kuz-Ram model to predict blast performance. Three models were used to consider the effect of blast plan geometry on the quality of blast rock fragmentation. A new blasting plan is proposed using the Langefors method and the Kuz-Ram empirical model. The results obtained were compared with those of previous blasts. Findings. The research results show that the optimal fragmentation of 89.2 % with a balance between fine particles of 5.7 % and outsized blocks of 5.1 % of rocks by explosive in the Heliopolis aggregates quarry is highly dependent on the type and quantity of explosive used, the direction of initiation, and the cracks caused by the waves of shock (back effects). Originality. The present work is concerned with the problem of the quality of rock blasting which will ultimately affect the costs of drilling, blasting and the efficiency of all mining operations. Parameters influencing the processes of rock fragmentation during mining operations are specified. Practical value. The purpose of blasting is to disaggregate the material in order to facilitate its recovery by the extraction equipment. It is therefore necessary to correctly define the blasting plan by optimizing these geometric parameters, the nature and the quantity of explosive, the initiation sequences aim to have the right particle size distribution.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"19 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/175
О. І. Babchynska, O. Vagonova, V. Nyzhnyk, O. Posvalyuk, O. M. Lozovskyi
Purpose. Carrying out an analysis of panel data on individual indicators of the development of the regions of Ukraine in general and their aggregates, distinguished by territorial location and profitability in order to establish the main regularities and specific features of changes in their gross regional product. Methodology. On the basis of a sample of statistical indicators of the socio-economic development of the regions of Ukraine for the period from the beginning of the Russian-Ukrainian war (2014) to the full-scale invasion, the authors created panel series of data with the separation of regional groups according to territorial and income criteria. For each group panel series of data, random effects regression models were built in order to determine the presence of regularities and specific features of regional development in different groups. Findings. An analysis of scientific developments and practical results in the issue of determining the key factors of the formation of the gross regional product was carried out. Given the uncertainty in views on the key factors of regional development, an attempt was made to determine them using a two-dimensional analysis of panel data. For this purpose, a sample of statistical information on the main indicators of socio-economic development of each of the regions of Ukraine was formed and their grouping was carried out according to two criteria: territorial location and profitability according to the indicator of the gross regional product per capita. In general, five groups of oblasts were formed based on territorial characteristics and four groups of oblasts based on income characteristics, and a panel regression model was constructed for each of these groups, including the total set of regional panel data. The received specifications of the models made it possible to form a list of key regularities in the formation of the gross regional product in Ukraine, as well as to determine specific factors of influence on the resulting indicator for each of the groups of oblasts. Originality. On the basis of the given approach to the panel analysis of factors of regional development and, in particular, the formation of the gross regional product, based on a combination of statistical methods for grouping (clustering) regions according to various criteria and panel regression models, the hypothesis regarding the presence of common regularities of regional development in certain groups of oblasts of Ukraine was confirmed. The key factors and specific features of changes in the indicator of the gross regional product in Ukraine in general and in individual regional clusters are determined. Practical value. The possibility of practical use of the obtained results as key risk factors in the process of forming plans for the economic development of individual oblasts in the long term, as well as the application of the proposed approach to the study on key factors of the formation of other indicators of regional
{"title":"Gross regional product in Ukraine: two-dimensional analysis of regularities and territorial features","authors":"О. І. Babchynska, O. Vagonova, V. Nyzhnyk, O. Posvalyuk, O. M. Lozovskyi","doi":"10.33271/nvngu/2024-1/175","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/175","url":null,"abstract":"Purpose. Carrying out an analysis of panel data on individual indicators of the development of the regions of Ukraine in general and their aggregates, distinguished by territorial location and profitability in order to establish the main regularities and specific features of changes in their gross regional product. Methodology. On the basis of a sample of statistical indicators of the socio-economic development of the regions of Ukraine for the period from the beginning of the Russian-Ukrainian war (2014) to the full-scale invasion, the authors created panel series of data with the separation of regional groups according to territorial and income criteria. For each group panel series of data, random effects regression models were built in order to determine the presence of regularities and specific features of regional development in different groups. Findings. An analysis of scientific developments and practical results in the issue of determining the key factors of the formation of the gross regional product was carried out. Given the uncertainty in views on the key factors of regional development, an attempt was made to determine them using a two-dimensional analysis of panel data. For this purpose, a sample of statistical information on the main indicators of socio-economic development of each of the regions of Ukraine was formed and their grouping was carried out according to two criteria: territorial location and profitability according to the indicator of the gross regional product per capita. In general, five groups of oblasts were formed based on territorial characteristics and four groups of oblasts based on income characteristics, and a panel regression model was constructed for each of these groups, including the total set of regional panel data. The received specifications of the models made it possible to form a list of key regularities in the formation of the gross regional product in Ukraine, as well as to determine specific factors of influence on the resulting indicator for each of the groups of oblasts. Originality. On the basis of the given approach to the panel analysis of factors of regional development and, in particular, the formation of the gross regional product, based on a combination of statistical methods for grouping (clustering) regions according to various criteria and panel regression models, the hypothesis regarding the presence of common regularities of regional development in certain groups of oblasts of Ukraine was confirmed. The key factors and specific features of changes in the indicator of the gross regional product in Ukraine in general and in individual regional clusters are determined. Practical value. The possibility of practical use of the obtained results as key risk factors in the process of forming plans for the economic development of individual oblasts in the long term, as well as the application of the proposed approach to the study on key factors of the formation of other indicators of regional","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"17 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/041
M. V. Chernyavskyy, O. Provalov, Y. Miroshnychenko, O. V. Kosyachkov
Scientific bases and peculiarities of conversion of CHPP anthracite boilers to sub-bituminous coal combustion Print EmailUser Rating: / 0 PoorBest Category: Content №1 2024 Last Updated on 29 February 2024 Published on 30 November -0001 Hits: 1 SocButtons v1.4 Authors: M.V.Chernyavskyy*, orcid.org/0000-0003-4225-4984, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: mchernyavski@gmail.com O.Yu.Provalov, orcid.org/0000-0002-5191-2259, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: eproval@ukr.net Ye.S.Miroshnychenko, orcid.org/0000-0003-2487-6886, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: yevhenmi@gmail.com O.V.Kosyachkov, orcid.org/0000-0002-9445-8738, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: alexkosoy@ukr.net * Corresponding author e-mail: mchernyavski@gmail.com повний текст / full article Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (1): 041 - 049 https://doi.org/10.33271/nvngu/2024-1/041 Abstract: Purpose. Development of scientific foundations and generalization of experience in development and implementation of technical solutions for conversion of CHPP anthracite boilers with steam productivity up to 250 t/h for combusting sub-bituminous coal with maximum use of existing equipment. Methodology. Consumption and heat calculations of pulverizing systems, aerodynamic calculations of pulverized coal pipes and burners, thermal calculations of boilers and combustion chambers. Calculation justification of technical solutions to eliminate the risk of coal ignition in pulverizing systems and in the burners. Industrial tests on CHPP boiler units. Findings. Different types of pulverizing systems of anthracite CHPP boilers with ball-drum mills, an intermediate pulverized coal hopper and with hot air as a drying agent were considered, and a classification of pulverizing systems by the method of pulverized coal transport to the burners (with drying agent or hot air), and boilers – by the type and location of the burners and the geometry of the furnace, was performed. The problems were analyzed, the calculations of pulverizing systems, pipes, burners, and boilers were performed according to the applied technical solutions, and the experience was summarized of conversion from anthracite to sub-bituminous coal in the boilers of Myronivska, Darnytska CHPP and of the first line of Slovianska TPP. Recommendations are given on methods of conversion of anthracite boilers with a steam capacity of up to 250 t/h with different types of pulverizing systems for burning sub-bituminous coal with maximum use of existing equipment. Originality. For pulverizing systems with ball-drum mills and an intermediate hopper for pulverized coal with hot air as a drying agent classification was made for the first time by the type of transp
CHPP 无烟煤锅炉改用亚烟煤燃烧的科学依据和特殊性 打印 电子邮件用户评级：/ 0 差最佳类别：内容№1 2024年2月29日最后更新发布于2024年11月30日-0001点击数: 1 SocButtons v1.4 作者：M.V.Chernyavskyy*, orcid.org/0000-0003-4225-4984, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: mchernyavski@gmail.com O.Yu.Provalov, orcid.org/0000-0002-5191-2259, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: eproval@ukr.net Ye.S.Miroshnychenko, orcid.org/0000-0003-2487-6886, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: yevhenmi@gmail.com O.V.Kosyachkov, orcid.org/0000-0002-9445-8738, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: alexkosoy@ukr.net * 通讯作者电子邮件：mchernyavski@gmail.com повний текст / 全文 Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu.2024, (1):041 - 049 https://doi.org/10.33271/nvngu/2024-1/041 摘要：目的。为最大限度地利用现有设备将蒸汽生产率高达 250 吨/小时的 CHPP 无烟煤锅炉改装为燃烧次烟煤的技术解决方案的开发和实施奠定科学基础并推广经验。方法。制粉系统的消耗和热量计算、煤粉管道和燃烧器的空气动力计算、锅炉和燃烧室的热量计算。计算消除煤粉制粉系统和燃烧器燃煤风险的技术解决方案的合理性。对 CHPP 锅炉装置进行工业试验。结果。考虑了不同类型的无烟煤 CHPP 锅炉制粉系统，包括球磨机、中间煤粉斗和热空气作为干燥剂，并根据煤粉输送到燃烧器的方法（使用干燥剂或热空气）对制粉系统进行了分类，根据燃烧器的类型和位置以及炉膛的几何形状对锅炉进行了分类。对问题进行了分析，根据应用的技术解决方案对制粉系统、管道、燃烧器和锅炉进行了计算，并总结了在 Myronivska、Darnytska CHPP 和 Slovianska TPP 一线锅炉中将无烟煤转换为亚烟煤的经验。就如何在最大限度利用现有设备的情况下，将蒸汽容量高达 250 吨/小时的无烟煤锅炉转换为燃烧亚烟煤的不同类型的制粉系统提出了建议。独创性。首次根据输送剂的类型，对带有球磨机和煤粉中间料斗、以热空气为干燥剂的煤粉制粉系统进行了分类，结果表明，在将无烟煤转换为亚烟煤，并将煤粉通过空气输送到燃烧器时，有必要从第一级空气加热器中选择微热空气。事实证明，要保持熔融除渣的温度条件，同时减少炉内热空气的消耗量，需要优先使用单磨模式的制粉系统，这是因为亚烟煤的可磨性更高。实用价值。根据在 Myronivska、Darnytska CHPP 和 Slovianska TPP 一线核准技术解决方案的经验，就如何在最大限度利用现有设备的情况下，将蒸汽容量高达 250 吨/小时的无烟煤锅炉与不同类型的制粉系统转移到燃烧亚烟煤的模式提出了建议。
{"title":"Scientific bases and peculiarities of conversion of CHPP anthracite boilers to sub-bituminous coal combustion","authors":"M. V. Chernyavskyy, O. Provalov, Y. Miroshnychenko, O. V. Kosyachkov","doi":"10.33271/nvngu/2024-1/041","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/041","url":null,"abstract":"Scientific bases and peculiarities of conversion of CHPP anthracite boilers to sub-bituminous coal combustion Print EmailUser Rating: / 0 PoorBest Category: Content №1 2024 Last Updated on 29 February 2024 Published on 30 November -0001 Hits: 1 SocButtons v1.4 Authors: M.V.Chernyavskyy*, orcid.org/0000-0003-4225-4984, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: mchernyavski@gmail.com O.Yu.Provalov, orcid.org/0000-0002-5191-2259, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: eproval@ukr.net Ye.S.Miroshnychenko, orcid.org/0000-0003-2487-6886, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: yevhenmi@gmail.com O.V.Kosyachkov, orcid.org/0000-0002-9445-8738, Thermal Energy Technology Institute of National Academy of Sciences of Ukraine, Kyiv, Ukraine, e-mail: alexkosoy@ukr.net * Corresponding author e-mail: mchernyavski@gmail.com повний текст / full article Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (1): 041 - 049 https://doi.org/10.33271/nvngu/2024-1/041 Abstract: Purpose. Development of scientific foundations and generalization of experience in development and implementation of technical solutions for conversion of CHPP anthracite boilers with steam productivity up to 250 t/h for combusting sub-bituminous coal with maximum use of existing equipment. Methodology. Consumption and heat calculations of pulverizing systems, aerodynamic calculations of pulverized coal pipes and burners, thermal calculations of boilers and combustion chambers. Calculation justification of technical solutions to eliminate the risk of coal ignition in pulverizing systems and in the burners. Industrial tests on CHPP boiler units. Findings. Different types of pulverizing systems of anthracite CHPP boilers with ball-drum mills, an intermediate pulverized coal hopper and with hot air as a drying agent were considered, and a classification of pulverizing systems by the method of pulverized coal transport to the burners (with drying agent or hot air), and boilers – by the type and location of the burners and the geometry of the furnace, was performed. The problems were analyzed, the calculations of pulverizing systems, pipes, burners, and boilers were performed according to the applied technical solutions, and the experience was summarized of conversion from anthracite to sub-bituminous coal in the boilers of Myronivska, Darnytska CHPP and of the first line of Slovianska TPP. Recommendations are given on methods of conversion of anthracite boilers with a steam capacity of up to 250 t/h with different types of pulverizing systems for burning sub-bituminous coal with maximum use of existing equipment. Originality. For pulverizing systems with ball-drum mills and an intermediate hopper for pulverized coal with hot air as a drying agent classification was made for the first time by the type of transp","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"76 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140408666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/147
D. Kozachenko, B. Gera, I. Taran, R. Korobiova, V. Malashkin, Y. Hermaniuk
Purpose. To improve the method for standardizing the duration of the shunting operation of assembling cars on one track. This can be achieved as a result of solving the following research problems: development of a method for searching the optimal order of assembling cars on one track; distribution parameters estimation of the random value of the duration of shunting operation of assembling cars on one track based on calculation experiments. Methodology. During the research, the methods of theory of railway operation, dynamic programming and mathematical statistics were used. Findings. Research on the assembling process of car group to one track established the distribution parameters of the random variable of time spent for shunting. In the course of the research, the problem of choosing the optimal order of shunting operations during car assembling was formalized and solved as a problem of dynamic programming. The time spent for shunting work was chosen as the optimality criterion. The paper considers the possibility of approximating the data of calculation experiments by analytical dependencies. It was found out that the use of linear polynomials with interaction allows obtaining dependencies describing time standards with a relative accuracy of ±5 %. Originality. The method is improved for developing the time standards for shunting work, which, unlike the existing one, is based on the performance of a series of calculation experiments, each of which solves the optimization problem of finding such an order of assembling cars that ensures minimum time consumption for shunting. Practical value. The methods developed in the work and the dependencies obtained allow improving the quality of decisions made when developing technology and designing railway stations and sidings of industrial enterprises.
{"title":"Improvement of the method of time rationing for assembling car groups on one track","authors":"D. Kozachenko, B. Gera, I. Taran, R. Korobiova, V. Malashkin, Y. Hermaniuk","doi":"10.33271/nvngu/2024-1/147","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/147","url":null,"abstract":"Purpose. To improve the method for standardizing the duration of the shunting operation of assembling cars on one track. This can be achieved as a result of solving the following research problems: development of a method for searching the optimal order of assembling cars on one track; distribution parameters estimation of the random value of the duration of shunting operation of assembling cars on one track based on calculation experiments. Methodology. During the research, the methods of theory of railway operation, dynamic programming and mathematical statistics were used. Findings. Research on the assembling process of car group to one track established the distribution parameters of the random variable of time spent for shunting. In the course of the research, the problem of choosing the optimal order of shunting operations during car assembling was formalized and solved as a problem of dynamic programming. The time spent for shunting work was chosen as the optimality criterion. The paper considers the possibility of approximating the data of calculation experiments by analytical dependencies. It was found out that the use of linear polynomials with interaction allows obtaining dependencies describing time standards with a relative accuracy of ±5 %. Originality. The method is improved for developing the time standards for shunting work, which, unlike the existing one, is based on the performance of a series of calculation experiments, each of which solves the optimization problem of finding such an order of assembling cars that ensures minimum time consumption for shunting. Practical value. The methods developed in the work and the dependencies obtained allow improving the quality of decisions made when developing technology and designing railway stations and sidings of industrial enterprises.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"6 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/069
V. O. Tu, N. Lebed, N. S. Kulesh
The paper is devoted to the study on hydrodynamics and heat exchange of two-phase medium. While designing technological equipment, when the wet steam is used as the operating medium, the features of the interaction between liquid drops and the heat exchange surface are not considered in most cases. In full, this applies to steam turbines operating on the wet steam whose moisture content depends on the primary and secondary removal of liquid drops from the separation blocks. Purpose. Improving the method of calculation of recuperative heat exchangers, if wet steam is used as the operating medium. Methodology. It is based on the analysis of the physical model of moving the two-phase medium in the heat and mass exchange conditions, considering the design characteristics of the heat transfer surface. Findings. The correlation of critical values of two-phase flow parameters was obtained to determine the lower boundary of the process of plucking the drops from the liquid film depending on the irrigation density, geometric characteristics of the channel and physical properties of the liquid and gas. Correlations were obtained for pipes with longitudinal finning as the Π-shaped profile, based on which we recommend optimizing the geometric characteristics of longitudinal finning. Originality. Determining the limit modes of secondary removal formation during the movement of a two-phase medium in separation devices and the features of heat and mass transfer of wet steam in finning recuperative heat exchangers. Practical value. The presented results make it possible to optimize the design of recuperative heat exchangers with longitudinal Π-shaped finning.
{"title":"Heat exchange under the longitudinal movement of wet steam in finning heat exchangers","authors":"V. O. Tu, N. Lebed, N. S. Kulesh","doi":"10.33271/nvngu/2024-1/069","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/069","url":null,"abstract":"The paper is devoted to the study on hydrodynamics and heat exchange of two-phase medium. While designing technological equipment, when the wet steam is used as the operating medium, the features of the interaction between liquid drops and the heat exchange surface are not considered in most cases. In full, this applies to steam turbines operating on the wet steam whose moisture content depends on the primary and secondary removal of liquid drops from the separation blocks. Purpose. Improving the method of calculation of recuperative heat exchangers, if wet steam is used as the operating medium. Methodology. It is based on the analysis of the physical model of moving the two-phase medium in the heat and mass exchange conditions, considering the design characteristics of the heat transfer surface. Findings. The correlation of critical values of two-phase flow parameters was obtained to determine the lower boundary of the process of plucking the drops from the liquid film depending on the irrigation density, geometric characteristics of the channel and physical properties of the liquid and gas. Correlations were obtained for pipes with longitudinal finning as the Π-shaped profile, based on which we recommend optimizing the geometric characteristics of longitudinal finning. Originality. Determining the limit modes of secondary removal formation during the movement of a two-phase medium in separation devices and the features of heat and mass transfer of wet steam in finning recuperative heat exchangers. Practical value. The presented results make it possible to optimize the design of recuperative heat exchangers with longitudinal Π-shaped finning.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140411767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/130
L. Koriashkina, S. V. Dziuba, S. A. Us, O. Stanina, M. Odnovol
Purpose. To ensure the rational organization of the evacuation of people from a region affected by an emergency by developing a mathematical and algorithmic toolkit that will allow for the early distribution of transport and material resources, maximizing coverage of the affected areas while minimizing evacuation time. Methodology. System analysis of evacuation processes; mathematical modeling, the theory of continuous problems of optimal partitioning of sets, non-differentiable optimization. Findings. The object of the study is the two-stage evacuation logistic processes that occur when serving the population of areas affected by emergencies of a natural or technogenic nature. The research considers the possibility of optimally distributing human flows within the transportation system, the structural subdivisions of which are first-stage centers (first aid stations that carry out the reception of citizens from areas affected by the disaster) and second-stage centers (specialized units of the emergency aid system that provide further services to the evacuated population). The proposed mathematical model deals with the problem of optimally partitioning a continuous set with the placement of subset centers and additional connections. Methods for its solution have been described. We demonstrate the versatility of these models, as they can be used to describe logistic evacuation processes, organize assembly points, intermediate locations, evacuation reception points, and those providing primary assistance to the affected population. We calculate the appropriate number of essential products and deliver them from existing warehouses through distribution centers to the affected areas. Originality. As preventive measures to increase the level of population safety during an emergency, we consider the optimal placement of rescue facilities and the zoning of the territory to distribute evacuation traffic. We also address the problem of the optimal distribution of human flows in the transport and logistics system. Practical value. The presented models, methods, and algorithms enable the solution of many practical problems related to the development of preventive measures and the planning of rescue operations to ensure the population’s safety in case of emergencies. The theoretical results obtained are translated into specific recommendations that can be utilized when addressing logistical problems related to the organization of primary evacuation of the population from affected areas and their subsequent transportation to safer locations for further assistance.
{"title":"Two-stage problems of optimal location and distribution of the humanitarian logistics system’s structural subdivisions","authors":"L. Koriashkina, S. V. Dziuba, S. A. Us, O. Stanina, M. Odnovol","doi":"10.33271/nvngu/2024-1/130","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/130","url":null,"abstract":"Purpose. To ensure the rational organization of the evacuation of people from a region affected by an emergency by developing a mathematical and algorithmic toolkit that will allow for the early distribution of transport and material resources, maximizing coverage of the affected areas while minimizing evacuation time. Methodology. System analysis of evacuation processes; mathematical modeling, the theory of continuous problems of optimal partitioning of sets, non-differentiable optimization. Findings. The object of the study is the two-stage evacuation logistic processes that occur when serving the population of areas affected by emergencies of a natural or technogenic nature. The research considers the possibility of optimally distributing human flows within the transportation system, the structural subdivisions of which are first-stage centers (first aid stations that carry out the reception of citizens from areas affected by the disaster) and second-stage centers (specialized units of the emergency aid system that provide further services to the evacuated population). The proposed mathematical model deals with the problem of optimally partitioning a continuous set with the placement of subset centers and additional connections. Methods for its solution have been described. We demonstrate the versatility of these models, as they can be used to describe logistic evacuation processes, organize assembly points, intermediate locations, evacuation reception points, and those providing primary assistance to the affected population. We calculate the appropriate number of essential products and deliver them from existing warehouses through distribution centers to the affected areas. Originality. As preventive measures to increase the level of population safety during an emergency, we consider the optimal placement of rescue facilities and the zoning of the territory to distribute evacuation traffic. We also address the problem of the optimal distribution of human flows in the transport and logistics system. Practical value. The presented models, methods, and algorithms enable the solution of many practical problems related to the development of preventive measures and the planning of rescue operations to ensure the population’s safety in case of emergencies. The theoretical results obtained are translated into specific recommendations that can be utilized when addressing logistical problems related to the organization of primary evacuation of the population from affected areas and their subsequent transportation to safer locations for further assistance.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"45 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140414169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.33271/nvngu/2024-1/167
B. Melnychenko, I. Khomyshyn, M. Sirant, S. Tsebenko, S. Yesimov
Purpose. To investigate the peculiarities of organizational and legal provision of information security (IS) in the conditions of martial law (ML). To propose changes to legislative provisions to improve legal regulation in this area. To develop systematic measures to balance the rights and obligations of individuals and legal entities in the field of IS in the conditions of ML. Methodology. The general scientific and special legal methods of cognition are used: hermeneutic method allowed us to substantiate expansion of IS field; content analysis – to determine organizational principles of IS of enterprises in conditions of ML; structural and legal – to propose indicator conditions for legal norms; special-legal – to propose system of local regulatory acts for the legal provision of IS; comparative legal – to propose special legal regime for IS of enterprises. Findings. It is indicated that during the state of war, the IS field of enterprise expands significantly and becomes an element of the national security system. The peculiarities of organizational and legal support and the basic organizational principles of IS of enterprises in the conditions of ML are determined. It is proposed to introduce a special legal regime for implementation of IS of enterprises in conditions of ML and use of the state’s capabilities in this area under specified legal regime. Amendments to the articles of Special Part of Code of Ukraine on administrative offenses are proposed for effective regulatory support of the special legal regime for implementation of IS of enterprises Originality. A legal tool is proposed to limit dissemination of information about a company’s activities – the introduction of local law documents to classify information about the company’s activities during ML into category “with limited access”. Indicator conditions and additions to legislative norms are proposed. Practical value. The developed proposals, indicator conditions and additions to legislative norms will contribute to strengthening the IS of enterprises.
目的调查戒严条件下信息安全（IS）的组织和法律规定的特殊性。建议修改法律条款，以完善该领域的法律规定。制定系统措施，平衡个人和法律实体在 ML 条件下 IS 领域的权利和义务。研究方法。采用一般科学和特殊法律认知方法：解释学方法使我们能够证实基础设施服务领域的扩展；内容分析--确定 ML 条件下企业基础设施服务的组织原则；结构和法律--提出法律规范的指标条件；特殊法律--提出基础设施服务法律规定的地方法规体系；比较法--提出企业基础设施服务的特殊法律制度。研究结果。结果表明，在战争状态下，企业的基础设施服务领域显著扩大，成为国家安全系统的一个组成部分。确定了在多边条约条件下组织和法律支持的特殊性以及企业 IS 的基本组织原则。建议为在反洗钱条件下实施企业基础设施服务引入特殊法律制度，并在特定法律制度下使用国家在该领域的能力。建议对《乌克兰法典》关于行政犯罪的特别部分条款进行修订，以便为实施企业内 部信息系统的特别法律制度提供有效的监管支持。建议采用一种法律手段来限制公司活动信息的传播--引入地方法律文件，将公司活动信息在 ML 期间归入 "限制访问 "类别。提出了指标条件和对立法规范的补充。实用价值。制定的建议、指标条件和立法规范的补充内容将有助于加强企业的信息系统。
{"title":"Organizational and legal principles of information security of enterprises in the conditions of martial law in Ukraine","authors":"B. Melnychenko, I. Khomyshyn, M. Sirant, S. Tsebenko, S. Yesimov","doi":"10.33271/nvngu/2024-1/167","DOIUrl":"https://doi.org/10.33271/nvngu/2024-1/167","url":null,"abstract":"Purpose. To investigate the peculiarities of organizational and legal provision of information security (IS) in the conditions of martial law (ML). To propose changes to legislative provisions to improve legal regulation in this area. To develop systematic measures to balance the rights and obligations of individuals and legal entities in the field of IS in the conditions of ML. Methodology. The general scientific and special legal methods of cognition are used: hermeneutic method allowed us to substantiate expansion of IS field; content analysis – to determine organizational principles of IS of enterprises in conditions of ML; structural and legal – to propose indicator conditions for legal norms; special-legal – to propose system of local regulatory acts for the legal provision of IS; comparative legal – to propose special legal regime for IS of enterprises. Findings. It is indicated that during the state of war, the IS field of enterprise expands significantly and becomes an element of the national security system. The peculiarities of organizational and legal support and the basic organizational principles of IS of enterprises in the conditions of ML are determined. It is proposed to introduce a special legal regime for implementation of IS of enterprises in conditions of ML and use of the state’s capabilities in this area under specified legal regime. Amendments to the articles of Special Part of Code of Ukraine on administrative offenses are proposed for effective regulatory support of the special legal regime for implementation of IS of enterprises Originality. A legal tool is proposed to limit dissemination of information about a company’s activities – the introduction of local law documents to classify information about the company’s activities during ML into category “with limited access”. Indicator conditions and additions to legislative norms are proposed. Practical value. The developed proposals, indicator conditions and additions to legislative norms will contribute to strengthening the IS of enterprises.","PeriodicalId":19101,"journal":{"name":"Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu","volume":"3 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140410515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：