Pub Date : 2021-03-11DOI: 10.1109/REEPE51337.2021.9387986
M. Tolba, V. Tulsky
The industries, communication systems, nuclear installations, hospitals, and etc are suffering from voltage degradation, due to increasing energy demand that cause insufficient operation in power systems. Because of the importance of Distributed Generators (DGs) technically and economically, they are considered the most crucial solutions. This research work introduces a robust methodology based Political optimizer (PO) and Objective Function Approach (OFA) ensuring the global optimum of the critical integration of DGs in the distribution grid. The proposed PO technique proved its quality and precision to find out the allocation of DGs based on OFA to boost the voltage-profile and stability besides minifying the system costs and losses. The MATLAB package” is utilized to perform the numeral results.
{"title":"Integration of DGs Optimally to Enhance the Voltage Profile and Stability Index of Distribution Grid","authors":"M. Tolba, V. Tulsky","doi":"10.1109/REEPE51337.2021.9387986","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9387986","url":null,"abstract":"The industries, communication systems, nuclear installations, hospitals, and etc are suffering from voltage degradation, due to increasing energy demand that cause insufficient operation in power systems. Because of the importance of Distributed Generators (DGs) technically and economically, they are considered the most crucial solutions. This research work introduces a robust methodology based Political optimizer (PO) and Objective Function Approach (OFA) ensuring the global optimum of the critical integration of DGs in the distribution grid. The proposed PO technique proved its quality and precision to find out the allocation of DGs based on OFA to boost the voltage-profile and stability besides minifying the system costs and losses. The MATLAB package” is utilized to perform the numeral results.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127243503","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388090
V. Kul’kov, M. Sultanov, V. N. Kuryanov, Norov D. Sh
Overhead power line wires are subject to various atmospheric effects. The most significant of them are wind and ice deposition. Such effects lead to irregular oscillations and vibrations of wires. The reliability of the lines is determined by the fatigue strength of the wire material. The authors’ point of view on the possible mechanism of fatigue cracks in the line wires is presented. The main ideas of the method of estimation of structural state of wire metal by measuring high-frequency electrical resistance taking into account effects of accumulation of defects of crystal structure and cracking in surface layers of wire metal are presented. This technique allows you to evaluate the degree of damage to the line. Timely diagnosis increases the reliability of the overhead power transmission line.
{"title":"Electrical reliability simulation based on analysis of fatigue strength of overhead line wires","authors":"V. Kul’kov, M. Sultanov, V. N. Kuryanov, Norov D. Sh","doi":"10.1109/REEPE51337.2021.9388090","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388090","url":null,"abstract":"Overhead power line wires are subject to various atmospheric effects. The most significant of them are wind and ice deposition. Such effects lead to irregular oscillations and vibrations of wires. The reliability of the lines is determined by the fatigue strength of the wire material. The authors’ point of view on the possible mechanism of fatigue cracks in the line wires is presented. The main ideas of the method of estimation of structural state of wire metal by measuring high-frequency electrical resistance taking into account effects of accumulation of defects of crystal structure and cracking in surface layers of wire metal are presented. This technique allows you to evaluate the degree of damage to the line. Timely diagnosis increases the reliability of the overhead power transmission line.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125256019","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388010
A. S. Moe, V. Glushenkov, V. G. Komarov
The article is devoted to the program for energy efficiency analysis of the multifunctional magnetic levitation transport system “ELTRO”. The characteristics of the levitation force and thrust of an integral traction-levitation module for a Maglev vehicle using the electromagnetic field of both an electromagnet and a permanent magnet are presented. Due to the use of permanent magnets, it can levitate with less current. In this paper, we predict the characteristics of the levitation force and thrust depending on the air gap and the current of the adjustment coil.
{"title":"Program for energy efficiency analysis of the multifunctional magnetic levitation transport system, ELTRO","authors":"A. S. Moe, V. Glushenkov, V. G. Komarov","doi":"10.1109/REEPE51337.2021.9388010","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388010","url":null,"abstract":"The article is devoted to the program for energy efficiency analysis of the multifunctional magnetic levitation transport system “ELTRO”. The characteristics of the levitation force and thrust of an integral traction-levitation module for a Maglev vehicle using the electromagnetic field of both an electromagnet and a permanent magnet are presented. Due to the use of permanent magnets, it can levitate with less current. In this paper, we predict the characteristics of the levitation force and thrust depending on the air gap and the current of the adjustment coil.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126118833","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388011
A. Zabirov, V. Yagov, M. Lexin, I. Molotova
The work aims to study the beginning of an intensive heat transfer regime during quenching process, when high-temperature bodies are cooled in liquids. This process occurred in numerous applications such as metal treatment and NPP safety systems. The experiments were carried out by cooling a high-temperature nickel sphere in subcooled liquids with different subcoolings to the saturation temperature. The experiments were conducted in pure water and in water-surfactant solutions with various concentrations under atmospheric pressure. The surfactant was sulfonol (alkylbenzene sulfonate), which added to cooling water. The concentrations of sulfonol were 0.1, 0.25, 0.5, 1 and 2%. The obtained temperature-time dependences (cooling thermograms) and data on the transition temperatures made it possible to reveal the regularities of the influence of sulfonol concentration in the cooling water on the beginning of the intensive cooling regime. Furthermore, experiments have demonstrated a strong influence of surface condition, its oxidation and contamination.
{"title":"Effect of surfactant concentration on the beginning of intensive cooling regime in subcooled water","authors":"A. Zabirov, V. Yagov, M. Lexin, I. Molotova","doi":"10.1109/REEPE51337.2021.9388011","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388011","url":null,"abstract":"The work aims to study the beginning of an intensive heat transfer regime during quenching process, when high-temperature bodies are cooled in liquids. This process occurred in numerous applications such as metal treatment and NPP safety systems. The experiments were carried out by cooling a high-temperature nickel sphere in subcooled liquids with different subcoolings to the saturation temperature. The experiments were conducted in pure water and in water-surfactant solutions with various concentrations under atmospheric pressure. The surfactant was sulfonol (alkylbenzene sulfonate), which added to cooling water. The concentrations of sulfonol were 0.1, 0.25, 0.5, 1 and 2%. The obtained temperature-time dependences (cooling thermograms) and data on the transition temperatures made it possible to reveal the regularities of the influence of sulfonol concentration in the cooling water on the beginning of the intensive cooling regime. Furthermore, experiments have demonstrated a strong influence of surface condition, its oxidation and contamination.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127736622","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388035
A. Zavyalova, I. Korolev, E. V. Fedorova, A. M. Borovkova, V. Malyshev
This article examines the peculiarities of teaching practical bachelor students in direction of “Electricity and Electrical Engineering” in the context of the rapid transition of the university to the format of distance learning. The emphasis is placed on the introduction of tools for the development of educational interaction between teachers and students for the purposes of engineering specialties students with competencies in the field of electric power and electrical engineering. A characteristic feature of the training of applied bachelor students is an increased number of practical and laboratory classes in all disciplines, as well as a thorough study of not only modern technical, technological production activities, but also training in industrial, environmental and other types of safety.
{"title":"Engineers Training Specifics According to Electrical Engineering Educational Program in the Context of Distance Learning","authors":"A. Zavyalova, I. Korolev, E. V. Fedorova, A. M. Borovkova, V. Malyshev","doi":"10.1109/REEPE51337.2021.9388035","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388035","url":null,"abstract":"This article examines the peculiarities of teaching practical bachelor students in direction of “Electricity and Electrical Engineering” in the context of the rapid transition of the university to the format of distance learning. The emphasis is placed on the introduction of tools for the development of educational interaction between teachers and students for the purposes of engineering specialties students with competencies in the field of electric power and electrical engineering. A characteristic feature of the training of applied bachelor students is an increased number of practical and laboratory classes in all disciplines, as well as a thorough study of not only modern technical, technological production activities, but also training in industrial, environmental and other types of safety.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128765025","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388039
Alla V. Vinogradova, A. Lazarev, P. Kharlamov
At the present stage of the global economy development, identifying and predicting unfavourable trends in the organization’s development, including the prediction of bankruptcy, is becoming extremely important. The most accurate prediction can be made using various software applications. The paper describes the software for data analysis and prediction of bankruptcy of organizations in the fuel and energy complex, developed by the authors, its algorithm and modular structure. Its principle of operation is based on predicting the Altman’s Z-Score values in the medium term for the organization of the sector using machine learning, neural networks, and fuzzy models.
{"title":"Software for data analysis and prediction of bankruptcy of organizations in the fuel and energy complex","authors":"Alla V. Vinogradova, A. Lazarev, P. Kharlamov","doi":"10.1109/REEPE51337.2021.9388039","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388039","url":null,"abstract":"At the present stage of the global economy development, identifying and predicting unfavourable trends in the organization’s development, including the prediction of bankruptcy, is becoming extremely important. The most accurate prediction can be made using various software applications. The paper describes the software for data analysis and prediction of bankruptcy of organizations in the fuel and energy complex, developed by the authors, its algorithm and modular structure. Its principle of operation is based on predicting the Altman’s Z-Score values in the medium term for the organization of the sector using machine learning, neural networks, and fuzzy models.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127308955","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388018
Y. Soluyanov, A. Fedotov, A. Akhmetshin, V. Soluyanov
Today, the calculation of the electrical load for residential and public buildings in the Russian Federation is carried out on the basis of SP 256.1325800.2016 “Electrical equipment of residential and public buildings. Rules of design and erection”. After specialists of the Association “Roselectromontazh” carried out a set of calculations obtained results showed that the standards specified are overestimated in comparison with the actual values. Electricity consumption has dropped significantly in recent years. The normative values, in turn, has not been revised, which led to unreasonably large investments in the construction of distribution networks, the formation of reserve capacities, and increased losses of electricity in the electrical equipment of electrical networks as a result of their inefficient use. An urgent task is to correct regulatory documents, taking into account regional characteristics, followed by monitoring their actual values. It is possible to complete the task in full using smart electricity meters.
{"title":"Application of intelligent electricity metering systems for timely adjustment of standard values for electrical loads calculation","authors":"Y. Soluyanov, A. Fedotov, A. Akhmetshin, V. Soluyanov","doi":"10.1109/REEPE51337.2021.9388018","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388018","url":null,"abstract":"Today, the calculation of the electrical load for residential and public buildings in the Russian Federation is carried out on the basis of SP 256.1325800.2016 “Electrical equipment of residential and public buildings. Rules of design and erection”. After specialists of the Association “Roselectromontazh” carried out a set of calculations obtained results showed that the standards specified are overestimated in comparison with the actual values. Electricity consumption has dropped significantly in recent years. The normative values, in turn, has not been revised, which led to unreasonably large investments in the construction of distribution networks, the formation of reserve capacities, and increased losses of electricity in the electrical equipment of electrical networks as a result of their inefficient use. An urgent task is to correct regulatory documents, taking into account regional characteristics, followed by monitoring their actual values. It is possible to complete the task in full using smart electricity meters.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133740911","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388016
O. Sigitov, N. Chemborisova
Installed capacity of renewable energy sources as part of electric power systems, in particular wind farms, is growing rapidly. The Russian Federation has also adopted a set of legislative measures aimed for increasing the installed capacity of wind farms. In this regard, the paper devoted to assessing the impact of wind farms on active power control range of traditional power plants. The paper presents calculation results that make it possible to assess the fluctuations regularity of wind farms generation schedule over a long period of time. Numerical results were obtained using the Microsoft Excel software package.
{"title":"Wind Farms Generation Deviation in Electric Power System","authors":"O. Sigitov, N. Chemborisova","doi":"10.1109/REEPE51337.2021.9388016","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388016","url":null,"abstract":"Installed capacity of renewable energy sources as part of electric power systems, in particular wind farms, is growing rapidly. The Russian Federation has also adopted a set of legislative measures aimed for increasing the installed capacity of wind farms. In this regard, the paper devoted to assessing the impact of wind farms on active power control range of traditional power plants. The paper presents calculation results that make it possible to assess the fluctuations regularity of wind farms generation schedule over a long period of time. Numerical results were obtained using the Microsoft Excel software package.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127137056","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9387992
G. Cho, Igor D. Vitlinsky, Victor A. Menshov, Deni Z. Isaev, A. A. Konstantinova, Yu. Z. Bubnov, Aleksander Poluektov
Isolated microgrids are the viable means of power supply of the load in remote areas. The economic efficiency of a microgrid as well as its reliability are the important issues. The dynamic economic dispatch of the generators provides the minimum operating cost. Introduction of energy storage system (ESS) in a microgrid promises the deeper optimization of generator dispatch. This paper presents the analysis of the effect of ESS introduction to dynamic economic dispatch of generators in an isolated microgrid. The evaluation was performed for two cases with a specified set of generators. Each set varies in the quantity of generators, efficiencies and capacities. The effect of ESS introduction was evaluated by comparing the operating cost with and without ESS. The feasibility of ESS introduction was studied with consideration of accelerated ESS aging. The additional capital cost of ESS to compensate the premature battery replacement was estimated. The feasibility of application of the oversized ESS batteries to extend the ESS lifetime was analyzed.
{"title":"Dynamic economic dispatch in isolated microgrids incorporating the energy storage system","authors":"G. Cho, Igor D. Vitlinsky, Victor A. Menshov, Deni Z. Isaev, A. A. Konstantinova, Yu. Z. Bubnov, Aleksander Poluektov","doi":"10.1109/REEPE51337.2021.9387992","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9387992","url":null,"abstract":"Isolated microgrids are the viable means of power supply of the load in remote areas. The economic efficiency of a microgrid as well as its reliability are the important issues. The dynamic economic dispatch of the generators provides the minimum operating cost. Introduction of energy storage system (ESS) in a microgrid promises the deeper optimization of generator dispatch. This paper presents the analysis of the effect of ESS introduction to dynamic economic dispatch of generators in an isolated microgrid. The evaluation was performed for two cases with a specified set of generators. Each set varies in the quantity of generators, efficiencies and capacities. The effect of ESS introduction was evaluated by comparing the operating cost with and without ESS. The feasibility of ESS introduction was studied with consideration of accelerated ESS aging. The additional capital cost of ESS to compensate the premature battery replacement was estimated. The feasibility of application of the oversized ESS batteries to extend the ESS lifetime was analyzed.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117207768","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 : 2021-03-11DOI: 10.1109/REEPE51337.2021.9388067
A. Vanin, Shchurovskaya Ellina, P. Nardelli, Aleksei Mashlakov
Nowadays the installation of distributed energy resources (DERs) is very popular all over the world. DERs bring partial independence from the external grid, fewer interruptions in the electric supply, economic benefits, improvement of the electrical energy quality and the green energy to the systems of the prosumers. However, they also bring network congestions and increase the complexity of the energy management especially when the renewable DERs with their inconstant generation profiles are used. One of the possible solutions for these problems for the prosumers is to organize and join an energy community. Energy community members can both exchange electrical energy to maintain energy balance and sell excess energy to the operator. There are two basic energy management strategies for the community members: collective and individual. This paper focuses on determining the most beneficial one by simulating an energy community with different levels of cooperation and assessing multiple parameters.
{"title":"Dispatch Optimization of Energy Communities for Collective Provision of Network Congestion Management","authors":"A. Vanin, Shchurovskaya Ellina, P. Nardelli, Aleksei Mashlakov","doi":"10.1109/REEPE51337.2021.9388067","DOIUrl":"https://doi.org/10.1109/REEPE51337.2021.9388067","url":null,"abstract":"Nowadays the installation of distributed energy resources (DERs) is very popular all over the world. DERs bring partial independence from the external grid, fewer interruptions in the electric supply, economic benefits, improvement of the electrical energy quality and the green energy to the systems of the prosumers. However, they also bring network congestions and increase the complexity of the energy management especially when the renewable DERs with their inconstant generation profiles are used. One of the possible solutions for these problems for the prosumers is to organize and join an energy community. Energy community members can both exchange electrical energy to maintain energy balance and sell excess energy to the operator. There are two basic energy management strategies for the community members: collective and individual. This paper focuses on determining the most beneficial one by simulating an energy community with different levels of cooperation and assessing multiple parameters.","PeriodicalId":272476,"journal":{"name":"2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128172363","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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