Pub Date : 2022-10-20DOI: 10.1109/MEES58014.2022.10005668
N. Shalimova, D. Zagirniak, Olena Chernovol, V. Perevozniuk
It has been substantiated that the attention to certain aspects of recognition of prior learning (RPL) in higher education is not the key to its success, it is necessary to ensure strategic planning and implementation of this process in accordance with the concept of life-long learning. The lack of Ukrainian practice is that the non-formal and informal education is not quite clear regulated in Ukraine in general and is not regulated in the Law of Ukraine “On the Higher Education”. It is grounded that it is important that access policies, admission processes and criteria in RPL are implemented consistently and in a transparent manner. It has been proved that the stakeholder involvement, especially in technical education, is very important for effective RPL mechanism and the needs of a wide range of stakeholders must be taken into account: external (potential employers in the region) and internal (students of a specific specialty). The main key points that will help improve RPL process in HEIs of Ukraine taking into account European and international best practice have been elaborated.
{"title":"Recognition of Prior Non-Formal and Informal Learning in Higher Education of Ukraine: Ways of Development","authors":"N. Shalimova, D. Zagirniak, Olena Chernovol, V. Perevozniuk","doi":"10.1109/MEES58014.2022.10005668","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005668","url":null,"abstract":"It has been substantiated that the attention to certain aspects of recognition of prior learning (RPL) in higher education is not the key to its success, it is necessary to ensure strategic planning and implementation of this process in accordance with the concept of life-long learning. The lack of Ukrainian practice is that the non-formal and informal education is not quite clear regulated in Ukraine in general and is not regulated in the Law of Ukraine “On the Higher Education”. It is grounded that it is important that access policies, admission processes and criteria in RPL are implemented consistently and in a transparent manner. It has been proved that the stakeholder involvement, especially in technical education, is very important for effective RPL mechanism and the needs of a wide range of stakeholders must be taken into account: external (potential employers in the region) and internal (students of a specific specialty). The main key points that will help improve RPL process in HEIs of Ukraine taking into account European and international best practice have been elaborated.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131061417","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005690
M. Zagirnyak
The paper describes a number of modifications of induction motors, in which the improvement of energy parameters is achieved by changing the shape of the rod along the length of the rotor. This enhances the effect of current displacement during starting in comparison with conventional motors, increases the starting torque and reduces the starting current.
{"title":"Improving the Energy Parameters of Medium Power Induction Electric Motors by Changing the Shape of the Rod along the Length of the Squirrel Cage Rotor","authors":"M. Zagirnyak","doi":"10.1109/MEES58014.2022.10005690","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005690","url":null,"abstract":"The paper describes a number of modifications of induction motors, in which the improvement of energy parameters is achieved by changing the shape of the rod along the length of the rotor. This enhances the effect of current displacement during starting in comparison with conventional motors, increases the starting torque and reduces the starting current.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128220203","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005695
Oksana Polinkevych, I. Khovrak, V. Trynchuk
The article examines the theoretical, methodologic, and analytical aspects of the quality management of distance education. The authors summarize the main approaches to distance learning in Ukraine, provide the features of distance learning for students of technical specialties, and identify problems that arise during distance learning in technical specialties. The authors justify the methodological provisions regarding the study of the quality of education during distance learning, and also establish the influence of distance learning on the quality of education in technical specialties. As a result, the article proposes several innovative mechanisms for managing the quality of education in technical specialties, the main element of which is the technological strategy of education.
{"title":"Quality Management of Distance Education","authors":"Oksana Polinkevych, I. Khovrak, V. Trynchuk","doi":"10.1109/MEES58014.2022.10005695","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005695","url":null,"abstract":"The article examines the theoretical, methodologic, and analytical aspects of the quality management of distance education. The authors summarize the main approaches to distance learning in Ukraine, provide the features of distance learning for students of technical specialties, and identify problems that arise during distance learning in technical specialties. The authors justify the methodological provisions regarding the study of the quality of education during distance learning, and also establish the influence of distance learning on the quality of education in technical specialties. As a result, the article proposes several innovative mechanisms for managing the quality of education in technical specialties, the main element of which is the technological strategy of education.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131987525","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005704
M. Ostroverkhov, V. Chibelis, Maxim Falchenko
The paper considers the synthesis of algorithms for controlling a permanent magnet synchronous motor in the sliding mode based he the concept of inverse problems of dynamics, which provide low sensitivity that parametric and coordinate disturbances. The basis of the method is the idea of reversibility of the direct Lyapunov method for stability research, which allows finding control laws in which the closed circuit has a predetermined Lyapunov function. The Lyapunov function is the instantaneous energy value. A characteristic feature of the presented control laws is the absence of object parameters in them. This ensures high control quality, dynamic decomposition of the interconnected system, and facilitates the practical implementation of control algorithms.
{"title":"Synthesis of Control Algorithms for a Permanent Magnet Synchronous Motor in Sliding Mode","authors":"M. Ostroverkhov, V. Chibelis, Maxim Falchenko","doi":"10.1109/MEES58014.2022.10005704","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005704","url":null,"abstract":"The paper considers the synthesis of algorithms for controlling a permanent magnet synchronous motor in the sliding mode based he the concept of inverse problems of dynamics, which provide low sensitivity that parametric and coordinate disturbances. The basis of the method is the idea of reversibility of the direct Lyapunov method for stability research, which allows finding control laws in which the closed circuit has a predetermined Lyapunov function. The Lyapunov function is the instantaneous energy value. A characteristic feature of the presented control laws is the absence of object parameters in them. This ensures high control quality, dynamic decomposition of the interconnected system, and facilitates the practical implementation of control algorithms.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134213946","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005686
P. Lezhniuk, V. Komar, M. Bělík, O. Rubanenko, I. Smaglo
The article shows in first part the need to assess the technical condition of photovoltaic power plants, in particular the degradation of their photovoltaic modules, because during operation there is a gradual decrease in the actual power generation if compared to the initial value. It may also be related to the activation of special technical resources controlling conditions or other reasons of an operational nature. Simulations take into account gradual reduction of the potential of PV plants leading to uncertainties in the evaluation of their energy efficiency, profitability, payback time, reserved capacity for compensation during unstable generation by renewable energy sources. Also hourly forecasting of electricity generation for the next day in the balance sheet of the United Energy System (UES) of Ukraine is taken into account. Therefore, in order to more accurately determine the actual generation of PV plants, it is necessary to develop and improve appropriate methods, mathematical models and tools. The first step for this is to investigate the cases of damage and the factors that affect them. For this purpose, the article develops a tree of damage to the plants and PV module and discusses the technical condition of the PV plants and determination of the indicator coefficients.
{"title":"Analysis of technical conditions influencing the operation of PV power stations cooperating with controlled power grids","authors":"P. Lezhniuk, V. Komar, M. Bělík, O. Rubanenko, I. Smaglo","doi":"10.1109/MEES58014.2022.10005686","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005686","url":null,"abstract":"The article shows in first part the need to assess the technical condition of photovoltaic power plants, in particular the degradation of their photovoltaic modules, because during operation there is a gradual decrease in the actual power generation if compared to the initial value. It may also be related to the activation of special technical resources controlling conditions or other reasons of an operational nature. Simulations take into account gradual reduction of the potential of PV plants leading to uncertainties in the evaluation of their energy efficiency, profitability, payback time, reserved capacity for compensation during unstable generation by renewable energy sources. Also hourly forecasting of electricity generation for the next day in the balance sheet of the United Energy System (UES) of Ukraine is taken into account. Therefore, in order to more accurately determine the actual generation of PV plants, it is necessary to develop and improve appropriate methods, mathematical models and tools. The first step for this is to investigate the cases of damage and the factors that affect them. For this purpose, the article develops a tree of damage to the plants and PV module and discusses the technical condition of the PV plants and determination of the indicator coefficients.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121305347","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005627
Yevheniia Znakovska, Y. Averyanova
Nowadays Unmanned aircraft systems (UAS) are used for a range of industrial applications. The peculiarities of tasks require understanding and knowledge of weather-related hazards that restrict or even make impossible the UAS flight and mission realization. Moreover, the modern UAS can be used as mobile sensors to obtain information about the current state of the atmosphere and its parameters for further implementation in IoT technologies including industrial IoT systems. At the same time, there is rather a lack of systems and programs for UAS meteorological support. In this paper, we develop the algorithm and software that can be used as an application for UAS operators. The decision-making algorithm considers the type of UAS (characteristic), mission and area of planned flight, and current weather situation. The developed software is aimed not only to inform UAS operators about the current meteorological state in the intended area of flight but also to give advice and help to take the right decision on the possibility to perform a particular task in a particular area of flight on the base of a risk-oriented approach.
{"title":"Simulation of UAS Operator's Decision-Making under Different Weather Conditions","authors":"Yevheniia Znakovska, Y. Averyanova","doi":"10.1109/MEES58014.2022.10005627","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005627","url":null,"abstract":"Nowadays Unmanned aircraft systems (UAS) are used for a range of industrial applications. The peculiarities of tasks require understanding and knowledge of weather-related hazards that restrict or even make impossible the UAS flight and mission realization. Moreover, the modern UAS can be used as mobile sensors to obtain information about the current state of the atmosphere and its parameters for further implementation in IoT technologies including industrial IoT systems. At the same time, there is rather a lack of systems and programs for UAS meteorological support. In this paper, we develop the algorithm and software that can be used as an application for UAS operators. The decision-making algorithm considers the type of UAS (characteristic), mission and area of planned flight, and current weather situation. The developed software is aimed not only to inform UAS operators about the current meteorological state in the intended area of flight but also to give advice and help to take the right decision on the possibility to perform a particular task in a particular area of flight on the base of a risk-oriented approach.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129294741","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005736
M. Qawaqzeh, Olha Sotnik, O. Miroshnyk, S. Halko, Oleksii Sotnik, Yurii Khandola
Comparative calculations of the load of a power transformer with a capacity of 100 kV.A and the carrying capacity, voltage and losses of electricity on a power transmission line of 0.4 kV in the village of Lutovinovka of the Kozelshchansky district branch of Poltavaoblenergo are carried out, taking into account the reduced value of the power factor and without taking into account the power factor (the existing method of calculation power loss). The refined values of the power factor showed that when calculating the current and voltage losses in the line sections, the calculations will be underestimated compared to the existing losses.
{"title":"Calculation of the Consequences of a Decrease in the Power Factor Level in Rural Electrical Networks Supplying Municipal and Household Electrical Consumers","authors":"M. Qawaqzeh, Olha Sotnik, O. Miroshnyk, S. Halko, Oleksii Sotnik, Yurii Khandola","doi":"10.1109/MEES58014.2022.10005736","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005736","url":null,"abstract":"Comparative calculations of the load of a power transformer with a capacity of 100 kV.A and the carrying capacity, voltage and losses of electricity on a power transmission line of 0.4 kV in the village of Lutovinovka of the Kozelshchansky district branch of Poltavaoblenergo are carried out, taking into account the reduced value of the power factor and without taking into account the power factor (the existing method of calculation power loss). The refined values of the power factor showed that when calculating the current and voltage losses in the line sections, the calculations will be underestimated compared to the existing losses.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116334899","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005702
Oleksandr Cherednichenko, S. Serbin, Mykhaylo Tkach, O. Savenko
In this paper the issues of heat recovery of marine engines for different schemes of power generating units are presented. Current trends in the development of offshore infrastructure are identified. The composition of the power plants for oil and gas floating units and offshore vessels has been analyzed. The results of a comparison of power to volume ratio, power to weight ratio and efficiency for diesel and gas turbine power modules of various capacities are presented. In order to evaluate the potential of waste energy resources of marine heat engines using the thermochemical heat recovery technologies of promising fuels, a multi-dimensional classification of the schemes of marine power generating units has been developed. The application limits of the existing approaches to estimation of processes efficiency of heat recovery for different schemes of power generating units have been defined. The limitations have been identified, that are related to the influence of the main parameters of the heat recovery processes on the feasibility of thermochemical treatment of fuels depending on their properties.
{"title":"Multi-dimensional Classification of the Schemes of Marine Power Generating Units","authors":"Oleksandr Cherednichenko, S. Serbin, Mykhaylo Tkach, O. Savenko","doi":"10.1109/MEES58014.2022.10005702","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005702","url":null,"abstract":"In this paper the issues of heat recovery of marine engines for different schemes of power generating units are presented. Current trends in the development of offshore infrastructure are identified. The composition of the power plants for oil and gas floating units and offshore vessels has been analyzed. The results of a comparison of power to volume ratio, power to weight ratio and efficiency for diesel and gas turbine power modules of various capacities are presented. In order to evaluate the potential of waste energy resources of marine heat engines using the thermochemical heat recovery technologies of promising fuels, a multi-dimensional classification of the schemes of marine power generating units has been developed. The application limits of the existing approaches to estimation of processes efficiency of heat recovery for different schemes of power generating units have been defined. The limitations have been identified, that are related to the influence of the main parameters of the heat recovery processes on the feasibility of thermochemical treatment of fuels depending on their properties.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117076764","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005692
A. Kasych, Olena Cherniavska, S. Bondarenko, Olena Ievseitseva, V. Glukhova
The paper examines the key factors, advantages, and results of implementing Industry 4.0 technologies in production. The potential and prospects of using Industry 4.0 technologies, in particular, robotics, artificial intelligence, and nanomaterials at enterprises to increase the efficiency of their activities are revealed. Environmental indicators and quality characteristics of products under conditions of different levels of robotization of production were studied. The main emphasis is researching the positive impact of robotics on the environmental characteristics of production in terms of reducing waste and increasing the environmental friendliness of products. The novelty of this research lies in developing recommendations for the implementation of Industry 4.0 technologies at the same time to improve the environmental efficiency of enterprises and increase the quality of products. This document may be of interest to enterprises with limited financial opportunities to increase the level of robotization of production which also incur unjustified environmental costs.
{"title":"Industry 4.0 Technologies in Ensuring Environmental Friendliness of Production and Product Quality","authors":"A. Kasych, Olena Cherniavska, S. Bondarenko, Olena Ievseitseva, V. Glukhova","doi":"10.1109/MEES58014.2022.10005692","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005692","url":null,"abstract":"The paper examines the key factors, advantages, and results of implementing Industry 4.0 technologies in production. The potential and prospects of using Industry 4.0 technologies, in particular, robotics, artificial intelligence, and nanomaterials at enterprises to increase the efficiency of their activities are revealed. Environmental indicators and quality characteristics of products under conditions of different levels of robotization of production were studied. The main emphasis is researching the positive impact of robotics on the environmental characteristics of production in terms of reducing waste and increasing the environmental friendliness of products. The novelty of this research lies in developing recommendations for the implementation of Industry 4.0 technologies at the same time to improve the environmental efficiency of enterprises and increase the quality of products. This document may be of interest to enterprises with limited financial opportunities to increase the level of robotization of production which also incur unjustified environmental costs.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114331333","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 : 2022-10-20DOI: 10.1109/MEES58014.2022.10005675
I. Nevliudov, S. Novoselov, O. Sychova, D. Mospan
Modern production requires the use of automation tools in the manufacturing process. One of the most commonly used technical means is an industrial manipulator. The concept of Industry 4.0 involves the use of special software tools that allow you to conveniently and visually debug control programs using the visualization of the process of simulating the movement of its mechanical parts in real time. This paper describes the technique of multithreaded software control of the movement of a two-link manipulator with three degrees of freedom. The proposed technique uses a set of independent timers, which allow to implement independent flows of controlling the progress of program execution. The process of distributing tasks between threads and the synchronization algorithm are described. The proposed technique can be used both for simulating the manipulator motion control process and for direct motion control using a serial data transfer interface and commands in G-Code format.
{"title":"Multithreaded Software Control of Industrial Manipulator Movement","authors":"I. Nevliudov, S. Novoselov, O. Sychova, D. Mospan","doi":"10.1109/MEES58014.2022.10005675","DOIUrl":"https://doi.org/10.1109/MEES58014.2022.10005675","url":null,"abstract":"Modern production requires the use of automation tools in the manufacturing process. One of the most commonly used technical means is an industrial manipulator. The concept of Industry 4.0 involves the use of special software tools that allow you to conveniently and visually debug control programs using the visualization of the process of simulating the movement of its mechanical parts in real time. This paper describes the technique of multithreaded software control of the movement of a two-link manipulator with three degrees of freedom. The proposed technique uses a set of independent timers, which allow to implement independent flows of controlling the progress of program execution. The process of distributing tasks between threads and the synchronization algorithm are described. The proposed technique can be used both for simulating the manipulator motion control process and for direct motion control using a serial data transfer interface and commands in G-Code format.","PeriodicalId":244144,"journal":{"name":"2022 IEEE 4th International Conference on Modern Electrical and Energy System (MEES)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115304710","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}
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