Pub Date : 2018-11-23DOI: 10.21303/2585-6847.2018.00781
I. Kulbovskyi, H. Holub
The analysis of the current state of power electric equipment of traction substations of railways, power supply systems for traction and control systems based on what was shown that current trends to ensure a high level of efficiency of the power industry are directly related to its informatization and the development of distributed computer systems and networks intellectual technology for monitoring, identifying and intellectualizing the management of energy saving modes of electric supply systems. The temporary decomposition of the tasks of management of electric networks of railways and the methodology of the organization of intelligent electric power traction networks are proposed. The methods for registering primary information monitoring parameters of normal and emergency modes of electric networks based on the use of mathematical tools of differential transformations and the presentation of data in the form of T-spectra are developed. On the basis of the system-wide principle of a single information space and the results of experimental studies, the architecture of the computer environment is studied, which reflects the range of possibilities for intellectualizing the traction network based on the characteristics of electricity supply to railways, taking into account restrictions and specificity of consumption. And at its base, modern computer-intelligent technologies have been created for managing energy saving in the process of power supply to railways at the level of traction substations, power supply distances and the upper level of the railway as a whole. The possibilities of the proposed structure of the intellectual traction electric network of Ukrzaliznytsia developed as a result of the mutual integration of the topology of the traction network of power supply and architecture of the computer environment, which is the infrastructure for managing power supply for railway transport, as well as the possibility of integrating real-time monitoring, state, optimization of consumption and management of energy saving in the process during the maintenance of electricity for traction at all levels of management of the railway in market conditions
{"title":"Investigation of computer-oriented technologies for the optimization of electric supply and energy saving of railway transport","authors":"I. Kulbovskyi, H. Holub","doi":"10.21303/2585-6847.2018.00781","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00781","url":null,"abstract":"The analysis of the current state of power electric equipment of traction substations of railways, power supply systems for traction and control systems based on what was shown that current trends to ensure a high level of efficiency of the power industry are directly related to its informatization and the development of distributed computer systems and networks intellectual technology for monitoring, identifying and intellectualizing the management of energy saving modes of electric supply systems. The temporary decomposition of the tasks of management of electric networks of railways and the methodology of the organization of intelligent electric power traction networks are proposed. The methods for registering primary information monitoring parameters of normal and emergency modes of electric networks based on the use of mathematical tools of differential transformations and the presentation of data in the form of T-spectra are developed. On the basis of the system-wide principle of a single information space and the results of experimental studies, the architecture of the computer environment is studied, which reflects the range of possibilities for intellectualizing the traction network based on the characteristics of electricity supply to railways, taking into account restrictions and specificity of consumption. And at its base, modern computer-intelligent technologies have been created for managing energy saving in the process of power supply to railways at the level of traction substations, power supply distances and the upper level of the railway as a whole. The possibilities of the proposed structure of the intellectual traction electric network of Ukrzaliznytsia developed as a result of the mutual integration of the topology of the traction network of power supply and architecture of the computer environment, which is the infrastructure for managing power supply for railway transport, as well as the possibility of integrating real-time monitoring, state, optimization of consumption and management of energy saving in the process during the maintenance of electricity for traction at all levels of management of the railway in market conditions","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89925683","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00766
Y. Boiko
The article presents a method for determining and ranking significance of the criteria of an information system for managing projects and programs (hereinafter, PMIS) based on the concept of subjective probability with the help of expert assessments. The method of expert assessments is implemented by processing the opinions of experienced specialists on the possible values of losses and (or) the probability of their occurrence. It is also used in non-formalizable problem situations, when the lack of a sufficient array of information or its unreliability does not allow the use of purely formal mathematical methods. When analyzing the PMIS choice, expert assessments can be used, firstly, to form a subjective assessment of one or another PMIS with the subsequent use of this information in order to quantify it using statistical methods. Secondly, for a qualitative assessment of the PMIS choice in terms of determining their rank significance, priority in an ordered list of PMIS criteria. As the main stages of the proposed methodology, the following are proposed: 1) development of a list of assessed PMIS criteria and formation of a list of experts; 2) conducting a survey of experts in order to obtain a set of individual expert assessments according to the PMIS criteria; 3) calculation of the average assessment criteria of the PMIS; 4) checking the consistency of expert opinions on the rank significance of the assessed PMIS criteria based on the Kendall coefficient of concordance; 5) summing up the results of expert assessment of the PMIS criteria. The practical aspects of the expert assessment are considered: calculation tables, the method of filling them, processing and analyzing the results. The method of expert assessment of the PMIS criteria was further developed, thanks to which a set of effective and functional criteria was determined, which will be taken into account when developing technical requirements for this system
{"title":"Methods of forming an expert assessment of the criteria of an information system for managing projects and programs","authors":"Y. Boiko","doi":"10.21303/2585-6847.2018.00766","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00766","url":null,"abstract":"The article presents a method for determining and ranking significance of the criteria of an information system for managing projects and programs (hereinafter, PMIS) based on the concept of subjective probability with the help of expert assessments. The method of expert assessments is implemented by processing the opinions of experienced specialists on the possible values of losses and (or) the probability of their occurrence. It is also used in non-formalizable problem situations, when the lack of a sufficient array of information or its unreliability does not allow the use of purely formal mathematical methods. When analyzing the PMIS choice, expert assessments can be used, firstly, to form a subjective assessment of one or another PMIS with the subsequent use of this information in order to quantify it using statistical methods. Secondly, for a qualitative assessment of the PMIS choice in terms of determining their rank significance, priority in an ordered list of PMIS criteria. As the main stages of the proposed methodology, the following are proposed: 1) development of a list of assessed PMIS criteria and formation of a list of experts; 2) conducting a survey of experts in order to obtain a set of individual expert assessments according to the PMIS criteria; 3) calculation of the average assessment criteria of the PMIS; 4) checking the consistency of expert opinions on the rank significance of the assessed PMIS criteria based on the Kendall coefficient of concordance; 5) summing up the results of expert assessment of the PMIS criteria. The practical aspects of the expert assessment are considered: calculation tables, the method of filling them, processing and analyzing the results. The method of expert assessment of the PMIS criteria was further developed, thanks to which a set of effective and functional criteria was determined, which will be taken into account when developing technical requirements for this system","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76801047","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00768
V. Herasymenko, I. Pertsovyi, O. Rozputnyi
In Ukraine, as a result of the Chernobyl disaster, 2,218 villages and cities with a population of about 2.4 million residents were in the zone of radioactive contamination. Pollution has undergone almost the entire territory of Polesia and a significant part of the Forest-Steppe. The population living in radioactively contaminated areas receives an additional more natural dose level of external and internal exposure. External irradiation is due to the high content of 137Cs in soils, with the decay of which increases the power of gamma radiation on the ground. Internal exposure is caused by the ingestion of 137Cs and 90Sr during the consumption of food products. The rural population with the consumption of products grown in household plots, receives significantly higher doses of radiation than the city. The activity of 137Cs and 90Sr in milk, meat, potatoes and other vegetable products is grown on the backyards of residents of the villages Osypivka and Tarasivka of the Bila Tserkva district of the Kyiv region, who have been subjected to radioactive contamination due to the Chernobyl disaster. The research results show that milk, meat and vegetable products grown in radioactively contaminated areas of the forest-steppe zone meet the radiation safety criteria for 137Cs and 90Sr. The internal exposure dose of the residents of the Osypivka village with the consumption of food products is 0.065 mSv/year, and that of the Tarasivka village - 0.028 mSv/year. Consumption of milk and potatoes makes the greatest contribution to the dose of internal exposure. The external radiation dose due to pollution of the territory of the settlement of 137Cs residents of the Osypivka village is 0.72 mSv/year, and that of the Tarasivka village – 0.27 mSv/year. The annual effective dose to residents of the Osypivka village – 0.78 mSv/year, and the residents of the Tarasivka village - 0.30 mSv/year, which does not exceed the dose of radiation established by current legislation at 1 mSv/year
{"title":"Assessment of the radiation safety of the rural population of the Central Forest-Steppe of Ukraine in the remote period after the Chernobyl catastrophe","authors":"V. Herasymenko, I. Pertsovyi, O. Rozputnyi","doi":"10.21303/2585-6847.2018.00768","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00768","url":null,"abstract":"In Ukraine, as a result of the Chernobyl disaster, 2,218 villages and cities with a population of about 2.4 million residents were in the zone of radioactive contamination. Pollution has undergone almost the entire territory of Polesia and a significant part of the Forest-Steppe. The population living in radioactively contaminated areas receives an additional more natural dose level of external and internal exposure. External irradiation is due to the high content of 137Cs in soils, with the decay of which increases the power of gamma radiation on the ground. Internal exposure is caused by the ingestion of 137Cs and 90Sr during the consumption of food products. The rural population with the consumption of products grown in household plots, receives significantly higher doses of radiation than the city. The activity of 137Cs and 90Sr in milk, meat, potatoes and other vegetable products is grown on the backyards of residents of the villages Osypivka and Tarasivka of the Bila Tserkva district of the Kyiv region, who have been subjected to radioactive contamination due to the Chernobyl disaster. The research results show that milk, meat and vegetable products grown in radioactively contaminated areas of the forest-steppe zone meet the radiation safety criteria for 137Cs and 90Sr. The internal exposure dose of the residents of the Osypivka village with the consumption of food products is 0.065 mSv/year, and that of the Tarasivka village - 0.028 mSv/year. Consumption of milk and potatoes makes the greatest contribution to the dose of internal exposure. The external radiation dose due to pollution of the territory of the settlement of 137Cs residents of the Osypivka village is 0.72 mSv/year, and that of the Tarasivka village – 0.27 mSv/year. The annual effective dose to residents of the Osypivka village – 0.78 mSv/year, and the residents of the Tarasivka village - 0.30 mSv/year, which does not exceed the dose of radiation established by current legislation at 1 mSv/year","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85080264","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00760
Olena Feoktystova, Nastasia Rovinska
In the article there is analyzed the present condition of the problem of high-tech project management to develop the new objects by the aviation profile enterprises. The analyses showed that for improvement of the efficiency of portfolio management it should be developed special methodic tools of decision support system by HR and Project managers about executors’ composition forming of high-tech projects taking into account number of indicators of different character and first of all employee competence. Based on the analyzed results the integrated process model was developed which described the main stages of team formation of high-tech projects executors. There is formation of expert committee of employees of aviation profile enterprises for the choice of rational variant of team composition from the several alternatives; estimation of the candidates’ competencies level for the including to the high-tech project team, the communication level assessment of the future team participants, selection by the collective expert estimation, united variant of executive team of high-tech project. This model provides increasing of the level of objectivity of finally decision about composition of team executors of high-tech project unlike other famous models. Practical value of proposed model is in decreasing of the risks of incorrect decision making by HRs and project managers during the process of formation of team executors of high-tech project. Based on developed methodical tools, in the article there is described process of formation of team executors of high-tech project on the typical aviation profile enterprises PF “Space”. This company is specialized on development of airdrome techniques in particular self-propelled passenger ladder. Also in this article there are described methods and computation effect from integration of theoretical results into the practice of management by the high-tech projects on the aviation profile enterprises. Practice value of received results is in creation of science methodic basis in aggregate models view and methods of decision making support of HR and project managers for the formation of team executors’ composition of high-tech projects. These results can be used in portfolio management not only on the aviation profile enterprises but in any other innovation companies
{"title":"Formation of a team of project executors in the area of creation aviation techniques","authors":"Olena Feoktystova, Nastasia Rovinska","doi":"10.21303/2585-6847.2018.00760","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00760","url":null,"abstract":"In the article there is analyzed the present condition of the problem of high-tech project management to develop the new objects by the aviation profile enterprises. The analyses showed that for improvement of the efficiency of portfolio management it should be developed special methodic tools of decision support system by HR and Project managers about executors’ composition forming of high-tech projects taking into account number of indicators of different character and first of all employee competence. Based on the analyzed results the integrated process model was developed which described the main stages of team formation of high-tech projects executors. There is formation of expert committee of employees of aviation profile enterprises for the choice of rational variant of team composition from the several alternatives; estimation of the candidates’ competencies level for the including to the high-tech project team, the communication level assessment of the future team participants, selection by the collective expert estimation, united variant of executive team of high-tech project. This model provides increasing of the level of objectivity of finally decision about composition of team executors of high-tech project unlike other famous models. Practical value of proposed model is in decreasing of the risks of incorrect decision making by HRs and project managers during the process of formation of team executors of high-tech project. Based on developed methodical tools, in the article there is described process of formation of team executors of high-tech project on the typical aviation profile enterprises PF “Space”. This company is specialized on development of airdrome techniques in particular self-propelled passenger ladder. Also in this article there are described methods and computation effect from integration of theoretical results into the practice of management by the high-tech projects on the aviation profile enterprises. Practice value of received results is in creation of science methodic basis in aggregate models view and methods of decision making support of HR and project managers for the formation of team executors’ composition of high-tech projects. These results can be used in portfolio management not only on the aviation profile enterprises but in any other innovation companies","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89025668","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00758
G. Kalinichenko, Yevgeniy Kalinichenko
Exceeding the safe speed and the minimum allowable distance when ships approach each other is considered as one of the main reasons for their collision, especially when using radar information when sailing in reduced visibility or in confined areas. When assigning a safe speed, among other factors, the rules recommend to take into account the state of visibility of the maneuverable capabilities of the ship, especially the distance required to completely stop the ship, as well as the characteristics, efficiency and limitations of radar equipment. But, besides the quality recommendations in the COLREGs, there are no quantitative estimates of the safe speed and excessive convergence of the ships. Each navigator subjectively assigns a safe speed and determines the minimum allowable approach distance for ships. Therefore, the development of a universal method for calculating safe speed and the minimum allowable distance when using radar information is relevant, and the method itself is effective when used on ships, especially when sailing in difficult navigation areas and with limited visibility. The developed method allows to automate the choice of safe speed and eliminate the subjective factor when it is appointed navigator
{"title":"Calculation of safe speed and minimally admissible distance of closing of ships during radar information usage","authors":"G. Kalinichenko, Yevgeniy Kalinichenko","doi":"10.21303/2585-6847.2018.00758","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00758","url":null,"abstract":"Exceeding the safe speed and the minimum allowable distance when ships approach each other is considered as one of the main reasons for their collision, especially when using radar information when sailing in reduced visibility or in confined areas. When assigning a safe speed, among other factors, the rules recommend to take into account the state of visibility of the maneuverable capabilities of the ship, especially the distance required to completely stop the ship, as well as the characteristics, efficiency and limitations of radar equipment. But, besides the quality recommendations in the COLREGs, there are no quantitative estimates of the safe speed and excessive convergence of the ships. Each navigator subjectively assigns a safe speed and determines the minimum allowable approach distance for ships. Therefore, the development of a universal method for calculating safe speed and the minimum allowable distance when using radar information is relevant, and the method itself is effective when used on ships, especially when sailing in difficult navigation areas and with limited visibility. The developed method allows to automate the choice of safe speed and eliminate the subjective factor when it is appointed navigator","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87533954","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00761
I. Ivashchenko, S. Adamenko
The current state of coniferous introduced plants growing on the territory of Uman, Cherkasy region is analyzed. Such representatives are the multi-age trees Pinus nigra and Thuja plicata. The studies were aimed at determining their resistance to arid environmental conditions in summer and to adverse factors in the winter period with generally accepted methods. Studies were conducted during 2015-2017. P.nigra trees during the study period received high drought tolerance scores. In Th. plicata plants observed a partial loss of needles turgor during daylight hours. When evaluating the frost resistance, P. nigra trees of different ages did not have visible damage. Young plants Th. plicata were somewhat more vulnerable to the effects of low temperatures, while no damage was found in mature trees. In general, both species have rather high rates of winter hardiness and drought resistance. This indicates their acclimatization to the given growing conditions. Also, the studied plants tolerate the adverse conditions of the city: dust, smoke, soil compaction. Therefore, it is advisable to use them for landscaping urban areas and personal plots. A feature of these species is that they retain a high decorative effect throughout the year and are good components for creating landscape compositions. Comparing the conditions of the natural distribution range to the conditions of the cultural areas of the studied species, it is possible to state their successful cultivation, which indicates a high ecological plasticity and significant potential of these plants
{"title":"Environmental features and resistance to the anthropogenic load of coniferous introducents in the central part of Ukraine","authors":"I. Ivashchenko, S. Adamenko","doi":"10.21303/2585-6847.2018.00761","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00761","url":null,"abstract":"The current state of coniferous introduced plants growing on the territory of Uman, Cherkasy region is analyzed. Such representatives are the multi-age trees Pinus nigra and Thuja plicata. The studies were aimed at determining their resistance to arid environmental conditions in summer and to adverse factors in the winter period with generally accepted methods. Studies were conducted during 2015-2017. P.nigra trees during the study period received high drought tolerance scores. In Th. plicata plants observed a partial loss of needles turgor during daylight hours. When evaluating the frost resistance, P. nigra trees of different ages did not have visible damage. Young plants Th. plicata were somewhat more vulnerable to the effects of low temperatures, while no damage was found in mature trees. In general, both species have rather high rates of winter hardiness and drought resistance. This indicates their acclimatization to the given growing conditions. Also, the studied plants tolerate the adverse conditions of the city: dust, smoke, soil compaction. Therefore, it is advisable to use them for landscaping urban areas and personal plots. A feature of these species is that they retain a high decorative effect throughout the year and are good components for creating landscape compositions. Comparing the conditions of the natural distribution range to the conditions of the cultural areas of the studied species, it is possible to state their successful cultivation, which indicates a high ecological plasticity and significant potential of these plants","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74015430","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00754
R. Meleshchenko, S. Gornostal
An important task in the design of buildings for different purposes is ensuring the safety of people's livelihoods. To protect them from the negative factors of fire, various devices are used to localize and stop burning. One of the elements of the fire protection of the building is the internal firefighting water supply. For the supply of water to extinguish a fire, it is provided for the installation of firefighting hydrants sets with a diameter of 25 and 33 mm. To date, there is no clear procedure for selecting fire hydrant equipment of small diameter for different types of buildings. To formulate the requirements for them, the influence of various factors on the actual flow of water is investigated. According to the results of the experiment, empirical dependences of water consumption for semi-rigid hoses are obtained. Analysis of the simulation results shows that the actual flow of water from a fire hydrant largely depends on the pressure in the network and the diameter of the hose. A comparison of actual water consumption with regulatory data is done. The inexpediency of the use of equipment, whose characteristics do not provide the necessary indicators, is shown. A 3-step procedure for selecting the characteristics of a fire hydrant is proposed, including determining the flow rate of water from a fire hydrant for semi-rigid hoses of different lengths, degree of deployment and arbitrary pressure values in the water supply network. The result is compared with the standard value. The proposed procedure allows to reasonably choose the equipment that can ensure the successful extinguishing of the fire. Its practical value is reducing the flow of water to extinguish a fire and reduce material losses
{"title":"Investigation of the characteristics of the internal firefighting water pipeline elements","authors":"R. Meleshchenko, S. Gornostal","doi":"10.21303/2585-6847.2018.00754","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00754","url":null,"abstract":"An important task in the design of buildings for different purposes is ensuring the safety of people's livelihoods. To protect them from the negative factors of fire, various devices are used to localize and stop burning. One of the elements of the fire protection of the building is the internal firefighting water supply. For the supply of water to extinguish a fire, it is provided for the installation of firefighting hydrants sets with a diameter of 25 and 33 mm. To date, there is no clear procedure for selecting fire hydrant equipment of small diameter for different types of buildings. To formulate the requirements for them, the influence of various factors on the actual flow of water is investigated. According to the results of the experiment, empirical dependences of water consumption for semi-rigid hoses are obtained. Analysis of the simulation results shows that the actual flow of water from a fire hydrant largely depends on the pressure in the network and the diameter of the hose. A comparison of actual water consumption with regulatory data is done. The inexpediency of the use of equipment, whose characteristics do not provide the necessary indicators, is shown. A 3-step procedure for selecting the characteristics of a fire hydrant is proposed, including determining the flow rate of water from a fire hydrant for semi-rigid hoses of different lengths, degree of deployment and arbitrary pressure values in the water supply network. The result is compared with the standard value. The proposed procedure allows to reasonably choose the equipment that can ensure the successful extinguishing of the fire. Its practical value is reducing the flow of water to extinguish a fire and reduce material losses","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77265187","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00757
O. Bilous
Sport of higher achievements requires hard training from athletes in a hard time mode for many years. Therefore, it is very important to monitor the diet of athletes. The aim of this research is development of a complex herbal antioxidant that can be used to increase the quality of the oils, fats and fat-containing products included in the diet. The current state of the use of antioxidants is assessed. The features of plant and synthetic antioxidants are described. The development of antioxidant is carried out from such plant materials as walnut leaves and calendula flowers. The chemical composition of the active antioxidant substances of walnut leaves and calendula flowers is given. The methods used in the work are aimed at obtaining extracts, estimating rational extraction parameters, and testing the antioxidant abilities of the extracts from periods of induction of products with different fatty acid composition. It is also used to plan and process the results of a full factorial experiment, to develop a technology for stabilizing fat-containing products to oxidation processes. It is proved that the developed complex antioxidant can increase the stability of food products to oxidation processes, protecting the product from the accumulation of free radicals. The rational parameters of the process of extraction of antioxidant substances from the studied plant materials are indicated. Data from induction periods, by which the quality of the extracts was assessed, is obtained using the Oxy test device. Synergism between tocopherols and antioxidant substances of walnut leaf extracts and calendula flowers is studied. The effectiveness of the antioxidant in relation to the products of different fatty acid composition is shown, which gives the right to use the antioxidant in a wide range of fat-containing products. A scheme for the stabilization of vegetable oils by the developed antioxidant is proposed. Recommendations on the enrichment of the diet of athletes by developed antioxidant are given
{"title":"Development of complex antioxidant for athletes","authors":"O. Bilous","doi":"10.21303/2585-6847.2018.00757","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00757","url":null,"abstract":"Sport of higher achievements requires hard training from athletes in a hard time mode for many years. Therefore, it is very important to monitor the diet of athletes. The aim of this research is development of a complex herbal antioxidant that can be used to increase the quality of the oils, fats and fat-containing products included in the diet. The current state of the use of antioxidants is assessed. The features of plant and synthetic antioxidants are described. The development of antioxidant is carried out from such plant materials as walnut leaves and calendula flowers. The chemical composition of the active antioxidant substances of walnut leaves and calendula flowers is given. The methods used in the work are aimed at obtaining extracts, estimating rational extraction parameters, and testing the antioxidant abilities of the extracts from periods of induction of products with different fatty acid composition. It is also used to plan and process the results of a full factorial experiment, to develop a technology for stabilizing fat-containing products to oxidation processes. It is proved that the developed complex antioxidant can increase the stability of food products to oxidation processes, protecting the product from the accumulation of free radicals. The rational parameters of the process of extraction of antioxidant substances from the studied plant materials are indicated. Data from induction periods, by which the quality of the extracts was assessed, is obtained using the Oxy test device. Synergism between tocopherols and antioxidant substances of walnut leaf extracts and calendula flowers is studied. The effectiveness of the antioxidant in relation to the products of different fatty acid composition is shown, which gives the right to use the antioxidant in a wide range of fat-containing products. A scheme for the stabilization of vegetable oils by the developed antioxidant is proposed. Recommendations on the enrichment of the diet of athletes by developed antioxidant are given","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80867650","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00753
Ganna Bakharieva, Serhii Petrov, T. Falalieieva
A scientifically sound method for calculating the parameters of bio-cleaning should contain as a basic a reliable mathematical description of the stationary process. The results of stationary laboratory experiments are presented in the coordinates “specific rate of destruction V – concentration ρ”. Statistical processing proves the presence of substrate inhibition for both gaseous and soluble and dissolved harmful substances in water. For an analytical description of the dependence of the biooxidation rate on the concentration of contaminants, a phenomenological approach is applied, taking into account in a simple form two obvious phenomena: the contact of a microorganism with a substrate molecule and the inhibitory effect of the medium on it. The numerical values of empirical dependency coefficients for the studied processes are calculated. A differential equation is proposed at the macro level that describes the kinetics of biochemical destruction. The concept of a macrokinetic mathematical model of bioremediation is defined as a system of two functions that quantitatively reflect the dependence of the specific oxidation rate of pollution on its concentration and concentration on time, as well as satisfying the relationship between the relationships of the same parameters in differential form. The dependence of concentration on time is defined both in the form of a numerical integration algorithm and in the form of an approximate formula. The adequacy and universality of the proposed model for the studied processes is proved. The advantage of the proposed model of substrate inhibition kinetics is the simplicity of the structure of the basic formula and the ease of determining empirical coefficients based on this. In addition to numerical integration for determining the time of destruction, an approximate analytical solution is found, which can be adequately used in the concentration range of the experimental study. Further research is aimed at developing methods for calculating non-stationary processes in biochemical purification plants of certain specific types
{"title":"Development of the mathematical model of the kinetics of the stationary process of bio-cleaning with substratic inhibition","authors":"Ganna Bakharieva, Serhii Petrov, T. Falalieieva","doi":"10.21303/2585-6847.2018.00753","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00753","url":null,"abstract":"A scientifically sound method for calculating the parameters of bio-cleaning should contain as a basic a reliable mathematical description of the stationary process. The results of stationary laboratory experiments are presented in the coordinates “specific rate of destruction V – concentration ρ”. Statistical processing proves the presence of substrate inhibition for both gaseous and soluble and dissolved harmful substances in water. For an analytical description of the dependence of the biooxidation rate on the concentration of contaminants, a phenomenological approach is applied, taking into account in a simple form two obvious phenomena: the contact of a microorganism with a substrate molecule and the inhibitory effect of the medium on it. The numerical values of empirical dependency coefficients for the studied processes are calculated. A differential equation is proposed at the macro level that describes the kinetics of biochemical destruction. The concept of a macrokinetic mathematical model of bioremediation is defined as a system of two functions that quantitatively reflect the dependence of the specific oxidation rate of pollution on its concentration and concentration on time, as well as satisfying the relationship between the relationships of the same parameters in differential form. The dependence of concentration on time is defined both in the form of a numerical integration algorithm and in the form of an approximate formula. The adequacy and universality of the proposed model for the studied processes is proved. The advantage of the proposed model of substrate inhibition kinetics is the simplicity of the structure of the basic formula and the ease of determining empirical coefficients based on this. In addition to numerical integration for determining the time of destruction, an approximate analytical solution is found, which can be adequately used in the concentration range of the experimental study. Further research is aimed at developing methods for calculating non-stationary processes in biochemical purification plants of certain specific types","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90511184","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 : 2018-11-23DOI: 10.21303/2585-6847.2018.00770
H. Slobodianyk, Nataliia Dolynska
The development of ports requires the construction of more and more deep-sea berthing facilities or the reconstruction of existing ones for servicing modern large-capacity ships. Traditional design solutions for deep-water berths are labor-intensive and material-intensive. The article describes the design of a deep-water berth in the form of tongue-and-groove wall with buttresses. Buttresses can be rectangular, trapezoidal with the extension downwards and trapezoidal with the extension upwards. The use of buttresses in the construction reduces the lateral pressure of the soil, increases the rigidity of the structure, and also increases the stability of the structure as a whole. The rational distribution of materials along the length of the structure and the unification of the elements leads to cheaper construction and a fast pace of construction. This solution can be used both in the construction of new berthing facilities and in the reconstruction of existing ones. The development of the calculated justification of the stability of the tongue-and-groove wall with buttresses, which optimally reflects the specificity of the structure, is carried out. Buttresses are an additional factor affecting the stability of the tongue-and-groove wall. Then, the stability of the structure as a whole depends on the resistance forces of the soil, arising in the plane of contact with the front wall and the resistance forces of the soil within the width of the buttress and involved, due to friction forces, in the joint work of the adjacent soil volumes. In order to determine the holding forces of the buttresses, experimental laboratory studies were conducted. Analysis of the results of the experiments shows that the trapezoidal buttresses with extension downwards have the greatest holding power. As a result of the mathematical modeling, the displacements of the wall and bending moments are plotted depending on the height of the buttresses. Thus, the design of the mooring structure of the innovative type can be used to create an economically deep-water berth with increased bearing capacity, which will be able to perceive modern ships with a large deadweight
{"title":"Sustainability of tongue-and-groove walls with buttresses","authors":"H. Slobodianyk, Nataliia Dolynska","doi":"10.21303/2585-6847.2018.00770","DOIUrl":"https://doi.org/10.21303/2585-6847.2018.00770","url":null,"abstract":"The development of ports requires the construction of more and more deep-sea berthing facilities or the reconstruction of existing ones for servicing modern large-capacity ships. Traditional design solutions for deep-water berths are labor-intensive and material-intensive. The article describes the design of a deep-water berth in the form of tongue-and-groove wall with buttresses. Buttresses can be rectangular, trapezoidal with the extension downwards and trapezoidal with the extension upwards. The use of buttresses in the construction reduces the lateral pressure of the soil, increases the rigidity of the structure, and also increases the stability of the structure as a whole. The rational distribution of materials along the length of the structure and the unification of the elements leads to cheaper construction and a fast pace of construction. This solution can be used both in the construction of new berthing facilities and in the reconstruction of existing ones. The development of the calculated justification of the stability of the tongue-and-groove wall with buttresses, which optimally reflects the specificity of the structure, is carried out. Buttresses are an additional factor affecting the stability of the tongue-and-groove wall. Then, the stability of the structure as a whole depends on the resistance forces of the soil, arising in the plane of contact with the front wall and the resistance forces of the soil within the width of the buttress and involved, due to friction forces, in the joint work of the adjacent soil volumes. In order to determine the holding forces of the buttresses, experimental laboratory studies were conducted. Analysis of the results of the experiments shows that the trapezoidal buttresses with extension downwards have the greatest holding power. As a result of the mathematical modeling, the displacements of the wall and bending moments are plotted depending on the height of the buttresses. Thus, the design of the mooring structure of the innovative type can be used to create an economically deep-water berth with increased bearing capacity, which will be able to perceive modern ships with a large deadweight","PeriodicalId":33845,"journal":{"name":"Technology Transfer Fundamental Principles and Innovative Technical Solutions","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87943069","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：