Pub Date : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046355
L. Balázs, Márk Majoros, Róbert Csamangó, József Nádas, Erika Tunyogi, T. Sandor
Electricity prices are rapidly increasing in Europe. Adaptive street lighting projects previously considered as economically unattractive can deliver substantial energy cost saving and short-term payback. We report the energy saving potential of a pilot installation designed to comply with current lighting regulations allowing the adjustment of the power of street lights according to the actual traffic conditions. Adaptive lighting enables significant energy saving in suburban areas where the traffic volume peaks in the evenings and early mornings, but traffic drops to very low level during the night. The decrease of the traffic volume enables the illuminance level and hence the power of the luminaires to be reduced. The system architecture and the principle of operation of an adaptive street lighting pilot comprising five LED luminaires equipped with NB IoT communication modules and traffic monitoring sensors are presented. The methodology used in this study can be tailored to estimate the energy saving potential of any other street lighting application.
{"title":"Energy saving potential of adaptive street lighting","authors":"L. Balázs, Márk Majoros, Róbert Csamangó, József Nádas, Erika Tunyogi, T. Sandor","doi":"10.1109/CANDO-EPE57516.2022.10046355","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046355","url":null,"abstract":"Electricity prices are rapidly increasing in Europe. Adaptive street lighting projects previously considered as economically unattractive can deliver substantial energy cost saving and short-term payback. We report the energy saving potential of a pilot installation designed to comply with current lighting regulations allowing the adjustment of the power of street lights according to the actual traffic conditions. Adaptive lighting enables significant energy saving in suburban areas where the traffic volume peaks in the evenings and early mornings, but traffic drops to very low level during the night. The decrease of the traffic volume enables the illuminance level and hence the power of the luminaires to be reduced. The system architecture and the principle of operation of an adaptive street lighting pilot comprising five LED luminaires equipped with NB IoT communication modules and traffic monitoring sensors are presented. The methodology used in this study can be tailored to estimate the energy saving potential of any other street lighting application.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"49 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122873903","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046390
Khaldoon Alfaverh, L. Számel
In the last few years, the price of battery energy storage (BES) technology (e.g. Lithium-Ion) has fallen tremendously and the cost of generating electricity from renewable energy sources has also decreased, and the trend is increasing. Therefore, the challenge to integrate the low-cost renewable electricity and low-cost storage to compete with conventional electricity generated from fossil fuels is the focus in recent research where BES is the key solution for this challenge. In this paper, the integration of BES into an isolated microgrid (MG) is investigated. This paper study the impact of a BES system on the frequency deviation as one of the critical applications to maintain grid stability considering the main characteristics of the BES and under different disturbances scenarios in an islanded MG. Overall, this paper introduces an open modular framework for future work on the performance of BES technologies from the technical aspect of different grid applications.
{"title":"Battery Energy Storage System Impact Over Load Frequency Control In Microgrids","authors":"Khaldoon Alfaverh, L. Számel","doi":"10.1109/CANDO-EPE57516.2022.10046390","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046390","url":null,"abstract":"In the last few years, the price of battery energy storage (BES) technology (e.g. Lithium-Ion) has fallen tremendously and the cost of generating electricity from renewable energy sources has also decreased, and the trend is increasing. Therefore, the challenge to integrate the low-cost renewable electricity and low-cost storage to compete with conventional electricity generated from fossil fuels is the focus in recent research where BES is the key solution for this challenge. In this paper, the integration of BES into an isolated microgrid (MG) is investigated. This paper study the impact of a BES system on the frequency deviation as one of the critical applications to maintain grid stability considering the main characteristics of the BES and under different disturbances scenarios in an islanded MG. Overall, this paper introduces an open modular framework for future work on the performance of BES technologies from the technical aspect of different grid applications.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132808375","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046395
György Schuster
In many cases, it is useful, important or necessary to use some tools to develop the safety-critical software [12]. These tools are mainly special software tools. This kind a software tool is a special program that we use to develop, test, or generate data for another program [14]. These tools may be used throughout the life cycle, considering this they play a significant role in the quality and qualification of the completed system. These devices appeared in the technical life as early as the 1980s and their use has grown exponentially in recent years. If you want to use a software tool in safety-critical development, you must also have the appropriate rating for those tools. This article deals with the certification of these tools [13].
{"title":"Certification of software tools used in safety-critical software development","authors":"György Schuster","doi":"10.1109/CANDO-EPE57516.2022.10046395","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046395","url":null,"abstract":"In many cases, it is useful, important or necessary to use some tools to develop the safety-critical software [12]. These tools are mainly special software tools. This kind a software tool is a special program that we use to develop, test, or generate data for another program [14]. These tools may be used throughout the life cycle, considering this they play a significant role in the quality and qualification of the completed system. These devices appeared in the technical life as early as the 1980s and their use has grown exponentially in recent years. If you want to use a software tool in safety-critical development, you must also have the appropriate rating for those tools. This article deals with the certification of these tools [13].","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128405446","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 : 2022-11-21DOI: 10.1109/cando-epe57516.2022.10046370
V. Efthymiou, M. Cabiati, A. Morch
The main objective of PANTERA project has been achieved. A multi-dimensional platform of pan European status and influence capable of leveraging coherence and trust as a pull towards enhanced R&I in energy systems centred around an integrated grid active and responsive has been delivered. This platform is currently working for Local Energy Systems in an integrated PAN European Smart Grid with specific emphasis on the low spending countries. This platform brings together the attractiveness of successful partnerships being national, regional, or European building through them the will for enhanced adaption to areas and partnerships that can broaden active participation for mutual benefit. From the beginning the element of sustainable presence of the collaborative platform strongly influenced the design and approach that was adapted.
{"title":"Boosting the R&I activity on Smart Grid Technologies : The Needs Springing from the Green Deal in Achieving Energy Transition: Plenary Talk","authors":"V. Efthymiou, M. Cabiati, A. Morch","doi":"10.1109/cando-epe57516.2022.10046370","DOIUrl":"https://doi.org/10.1109/cando-epe57516.2022.10046370","url":null,"abstract":"The main objective of PANTERA project has been achieved. A multi-dimensional platform of pan European status and influence capable of leveraging coherence and trust as a pull towards enhanced R&I in energy systems centred around an integrated grid active and responsive has been delivered. This platform is currently working for Local Energy Systems in an integrated PAN European Smart Grid with specific emphasis on the low spending countries. This platform brings together the attractiveness of successful partnerships being national, regional, or European building through them the will for enhanced adaption to areas and partnerships that can broaden active participation for mutual benefit. From the beginning the element of sustainable presence of the collaborative platform strongly influenced the design and approach that was adapted.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116171895","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046360
S. Bal, Z. A. Tamus
Cables are undoubtedly major and vital equipment in low voltage (LV) distribution networks. The majority of low voltage cable networks were constructed, as is well known, many years ago. By that time, the cables have been subjected to various stresses. The cable insulation is harmed because of these stresses, which cause failures. Therefore, the condition monitoring (CM) of these existing cable networks gained importance in past years. This study’s samples of O,6/1kV SZRMtKVM-J 4×6 mm PVC insulated cables underwent 4 cycles of thermal stress at 110°C. Each round lasts for six hours. The effects of thermal stress on cable insulation were investigated in time and frequency domain. The extended voltage response (EVR) method is used for time-domain spectroscopy, while Wayne Kerr impedance analyzer is used for frequency domain spectroscopy. This paper presents the initial findings from the current laboratory experiment.
{"title":"Analyzing the Effect of Thermal Stress on Dielectric Parameters of PVC Insulated Low Voltage Cable Sample","authors":"S. Bal, Z. A. Tamus","doi":"10.1109/CANDO-EPE57516.2022.10046360","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046360","url":null,"abstract":"Cables are undoubtedly major and vital equipment in low voltage (LV) distribution networks. The majority of low voltage cable networks were constructed, as is well known, many years ago. By that time, the cables have been subjected to various stresses. The cable insulation is harmed because of these stresses, which cause failures. Therefore, the condition monitoring (CM) of these existing cable networks gained importance in past years. This study’s samples of O,6/1kV SZRMtKVM-J 4×6 mm PVC insulated cables underwent 4 cycles of thermal stress at 110°C. Each round lasts for six hours. The effects of thermal stress on cable insulation were investigated in time and frequency domain. The extended voltage response (EVR) method is used for time-domain spectroscopy, while Wayne Kerr impedance analyzer is used for frequency domain spectroscopy. This paper presents the initial findings from the current laboratory experiment.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132732091","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046382
Z. Farkas, A. Ürmös
In this paper, a brief overview of the nanostructures produced by droplet epitaxy is given. An outlook to the technology of quantum dots, quantum rings and nanoholes is taken. Thereafter a summary of our investigations on the relationships between the technological and geometrical parameters of these nanostructures is presented. A database is compiled from relatively large amount of literature and has been processed using several methods. By analyzing the data and building regressive models, our intention was to promote the designability of nanostructures. Finally, a short overview of the application possibilities of these nanostructures is given.
{"title":"A Brief Overview of GaAs-based Quantum Structures and Their Technologies and Applications","authors":"Z. Farkas, A. Ürmös","doi":"10.1109/CANDO-EPE57516.2022.10046382","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046382","url":null,"abstract":"In this paper, a brief overview of the nanostructures produced by droplet epitaxy is given. An outlook to the technology of quantum dots, quantum rings and nanoholes is taken. Thereafter a summary of our investigations on the relationships between the technological and geometrical parameters of these nanostructures is presented. A database is compiled from relatively large amount of literature and has been processed using several methods. By analyzing the data and building regressive models, our intention was to promote the designability of nanostructures. Finally, a short overview of the application possibilities of these nanostructures is given.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133004117","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046392
J. Zbojovský, J. Kurimský, I. Kolcunová, M. Pavlík, R. Cimbala
This paper deals with the possibilities of evaluating the shielding effectiveness through the simulation of the waveguide in the Ansys HFSS simulation software. A waveguide with certain frequency 3.7GHz was done. Frequency range is from 2 to 8 GHz. Materials such as rubber, marble, glass, plexiglass and ferrite were selected for the simulation and subsequently the shielding effectiveness was evaluated.
{"title":"Waveguide model for the purposes of evaluating the shielding effectiveness of the electromagnetic field","authors":"J. Zbojovský, J. Kurimský, I. Kolcunová, M. Pavlík, R. Cimbala","doi":"10.1109/CANDO-EPE57516.2022.10046392","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046392","url":null,"abstract":"This paper deals with the possibilities of evaluating the shielding effectiveness through the simulation of the waveguide in the Ansys HFSS simulation software. A waveguide with certain frequency 3.7GHz was done. Frequency range is from 2 to 8 GHz. Materials such as rubber, marble, glass, plexiglass and ferrite were selected for the simulation and subsequently the shielding effectiveness was evaluated.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115050109","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046372
Gergely Sebestyen, J. Kopják
In this paper, we introduce a network mapping method for wireless sensor networks based on TDMA flooding routing protocol. The aim of the network mapping is to create a map of the entire network with all connections for further analysis. The network discovery method used for leasing Virtual Routing Numbers not provides enough information about all of the network connections. The introduced network mapping method take advantage of the TDMA flooding routing protocol based communication and create the adjacency matrix of the graph abstracted from the wireless sensor network topography.
{"title":"Network Mapping for TDMA Mesh Sensor Networks with Flooding Routing","authors":"Gergely Sebestyen, J. Kopják","doi":"10.1109/CANDO-EPE57516.2022.10046372","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046372","url":null,"abstract":"In this paper, we introduce a network mapping method for wireless sensor networks based on TDMA flooding routing protocol. The aim of the network mapping is to create a map of the entire network with all connections for further analysis. The network discovery method used for leasing Virtual Routing Numbers not provides enough information about all of the network connections. The introduced network mapping method take advantage of the TDMA flooding routing protocol based communication and create the adjacency matrix of the graph abstracted from the wireless sensor network topography.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124052597","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046363
P. Kádár
In the changing energy market environment the weather-dependent producers’ production does not always match consumption. There are several options for regulating the excess power (storage, gas engine operation, secondary regulation market [mFRR], demand side management of consumers, etc.). The simultaneous production of peak energy is expensive and may run into capacity constraints. At the same time, storage involves significant losses, additional costs and environmental impact. The previous paradigm, i.e. “Use more electricity at night!” has changed significantly, instead it is more appropriate to implement the “Consume more energy in case of excess production!” principle (e.g. solar production during the day). We are currently investigating which solution is the most favorable in terms of environmental impact.With Life Cycle Analysis (LCA) can be shown that the Smart Demand Side Management (DSM) solution has a significantly lower environmental load and material consumption than the use of energy storage or other regulated power plants. With calculations performed by university students, we show how the storage and regulation of excess solar energy production and the matching of consumption with production relate to each other. All this is facilitated by the lower cost and the necessary Internet communication network available in more and more places anyway.
{"title":"Paradigm change of the Demand Side Management","authors":"P. Kádár","doi":"10.1109/CANDO-EPE57516.2022.10046363","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046363","url":null,"abstract":"In the changing energy market environment the weather-dependent producers’ production does not always match consumption. There are several options for regulating the excess power (storage, gas engine operation, secondary regulation market [mFRR], demand side management of consumers, etc.). The simultaneous production of peak energy is expensive and may run into capacity constraints. At the same time, storage involves significant losses, additional costs and environmental impact. The previous paradigm, i.e. “Use more electricity at night!” has changed significantly, instead it is more appropriate to implement the “Consume more energy in case of excess production!” principle (e.g. solar production during the day). We are currently investigating which solution is the most favorable in terms of environmental impact.With Life Cycle Analysis (LCA) can be shown that the Smart Demand Side Management (DSM) solution has a significantly lower environmental load and material consumption than the use of energy storage or other regulated power plants. With calculations performed by university students, we show how the storage and regulation of excess solar energy production and the matching of consumption with production relate to each other. All this is facilitated by the lower cost and the necessary Internet communication network available in more and more places anyway.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114275231","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 : 2022-11-21DOI: 10.1109/CANDO-EPE57516.2022.10046385
Alen Hatibović, P. Kádár, György Morva
In the frame of the parabola-based sag-tension calculation for overhead line design, the necessary data for the derivation of the equation of the conductor curve in a span are the maximum sag, the coordinates of the support points and the span length. Naturally, the conductor sag changes with the temperature and so does the conductor curve. Thus, for different conductor temperatures, the equation of the conductor curve is also different. Oppositely to the common method for the derivation of the equation of the parabolic conductor curve using the maximum sag as the main input datum, this paper shows how the latter can be substituted by the x-coordinate of the low point of the conductor when it is a known or defined datum. The presented method is developed especially for the application in the case of already built i.e. existing overhead lines. The novel equation of the parabolic conductor curve is usable in inclined spans, while in level spans it is not. It is appropriately presented through a suitable numerical example.
{"title":"A Novel Parabolic Equation of the Conductor Curve in an Inclined Span Based on a Known x–coordinate of the Low Point of the Conductor","authors":"Alen Hatibović, P. Kádár, György Morva","doi":"10.1109/CANDO-EPE57516.2022.10046385","DOIUrl":"https://doi.org/10.1109/CANDO-EPE57516.2022.10046385","url":null,"abstract":"In the frame of the parabola-based sag-tension calculation for overhead line design, the necessary data for the derivation of the equation of the conductor curve in a span are the maximum sag, the coordinates of the support points and the span length. Naturally, the conductor sag changes with the temperature and so does the conductor curve. Thus, for different conductor temperatures, the equation of the conductor curve is also different. Oppositely to the common method for the derivation of the equation of the parabolic conductor curve using the maximum sag as the main input datum, this paper shows how the latter can be substituted by the x-coordinate of the low point of the conductor when it is a known or defined datum. The presented method is developed especially for the application in the case of already built i.e. existing overhead lines. The novel equation of the parabolic conductor curve is usable in inclined spans, while in level spans it is not. It is appropriately presented through a suitable numerical example.","PeriodicalId":127258,"journal":{"name":"2022 IEEE 5th International Conference and Workshop Óbuda on Electrical and Power Engineering (CANDO-EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101800","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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