Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548406
H. Rimal
A simplified dynamic model to represent the behaviour of soft ferrites at higher frequency is necessary in many applications including avionics. We have tried to address this issue by using a circuital model. The model represents frequency dependence of hysteresis in ferrite material using the parallel combination of static hysteresis model and passive electrical elements. The static hysteresis model such as preisach model represents the magnetic core behaviour, whereas the passive electrical elements represent the broadening of hysteresis loops with the increase in frequency. The parameters of the model are identified using pattern search algorithm, and the model is tested for the frequency upto one Megahertz. Comparison between the results obtained from simulation and measurements for N30 Manganese Zinc ferrite using sinusoidal excitation are presented in the paper. The model is applicable to predict the performance of ferrite core inductors that are used to mitigate the lightning indirect effects in avionic equipments.
{"title":"Dynamic Model of Soft Ferrites for Avionic Applications","authors":"H. Rimal","doi":"10.1109/RTSI.2018.8548406","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548406","url":null,"abstract":"A simplified dynamic model to represent the behaviour of soft ferrites at higher frequency is necessary in many applications including avionics. We have tried to address this issue by using a circuital model. The model represents frequency dependence of hysteresis in ferrite material using the parallel combination of static hysteresis model and passive electrical elements. The static hysteresis model such as preisach model represents the magnetic core behaviour, whereas the passive electrical elements represent the broadening of hysteresis loops with the increase in frequency. The parameters of the model are identified using pattern search algorithm, and the model is tested for the frequency upto one Megahertz. Comparison between the results obtained from simulation and measurements for N30 Manganese Zinc ferrite using sinusoidal excitation are presented in the paper. The model is applicable to predict the performance of ferrite core inductors that are used to mitigate the lightning indirect effects in avionic equipments.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126176146","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 : 2018-09-01DOI: 10.1109/rtsi.2018.8548370
{"title":"Research and Technologies for Society and Industry","authors":"","doi":"10.1109/rtsi.2018.8548370","DOIUrl":"https://doi.org/10.1109/rtsi.2018.8548370","url":null,"abstract":"","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121884978","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548376
M. Belotti, Sofiane Kirati, Stefano Secci
In the Bitcoin blockchain, rewarding methods for remunerating miners participating in a pool have to meet certain requirements in order to guarantee the proper functioning of the cryptocurrency ecosystem. In particular, these allocation rules reward pool participants in proportion to their contribution in the transaction validation process. Deployed rewarding methods met fairness concerns at the expense of vulnerability to miners exploiting pools' attractiveness for deciding when to mine for a pool and when to ‘hop’ to another one resulting more attractive: a phenomenon called pool-hopping. The most used score-based methods are designed to prevent this practice, but are not completely hopping proof. In this work, we propose a methodology to analyze the pool-hopping phenomenon, focusing on the detection of pool-hoppers. Analyzing those Bitcoin transactions that pools create for rewarding its participants, it is possible to determine time epochs where miners worked. Thus, we analyze those miners that have worked intermittently for pools adopting a rewarding system which pays out for each validated block. This evaluation leads us qualifying the miners that have hopped along with their hopping behavior and financial performance.
{"title":"Bitcoin Pool-Hopping Detection","authors":"M. Belotti, Sofiane Kirati, Stefano Secci","doi":"10.1109/RTSI.2018.8548376","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548376","url":null,"abstract":"In the Bitcoin blockchain, rewarding methods for remunerating miners participating in a pool have to meet certain requirements in order to guarantee the proper functioning of the cryptocurrency ecosystem. In particular, these allocation rules reward pool participants in proportion to their contribution in the transaction validation process. Deployed rewarding methods met fairness concerns at the expense of vulnerability to miners exploiting pools' attractiveness for deciding when to mine for a pool and when to ‘hop’ to another one resulting more attractive: a phenomenon called pool-hopping. The most used score-based methods are designed to prevent this practice, but are not completely hopping proof. In this work, we propose a methodology to analyze the pool-hopping phenomenon, focusing on the detection of pool-hoppers. Analyzing those Bitcoin transactions that pools create for rewarding its participants, it is possible to determine time epochs where miners worked. Thus, we analyze those miners that have worked intermittently for pools adopting a rewarding system which pays out for each validated block. This evaluation leads us qualifying the miners that have hopped along with their hopping behavior and financial performance.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"33 7-8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131779727","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548498
Donato Amitrano, M. Costantini, Domenico A. G. Dell'Aglio, A. Iodice, F. Malvarosa, F. Minati, D. Riccio, G. Ruello
In this paper, we address large displacements monitoring using sub-pixel offset tracking. This technique, working only with the amplitude channel, can be applied in the observation of fast movements even in scarcely temporally coherent areas. The case study concerns the Slumgullion landslide (US). It is a fast landslide, causing each year movements of several meters, thus impossible to be monitored with differential interferometry. The obtained results have been compared with those available in literature retrieved through on field measurements. This comparison confirmed the reliability of the implemented methodology.
{"title":"Landslide Monitoring Using Sar Sub-Pixel Offset Tracking","authors":"Donato Amitrano, M. Costantini, Domenico A. G. Dell'Aglio, A. Iodice, F. Malvarosa, F. Minati, D. Riccio, G. Ruello","doi":"10.1109/RTSI.2018.8548498","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548498","url":null,"abstract":"In this paper, we address large displacements monitoring using sub-pixel offset tracking. This technique, working only with the amplitude channel, can be applied in the observation of fast movements even in scarcely temporally coherent areas. The case study concerns the Slumgullion landslide (US). It is a fast landslide, causing each year movements of several meters, thus impossible to be monitored with differential interferometry. The obtained results have been compared with those available in literature retrieved through on field measurements. This comparison confirmed the reliability of the implemented methodology.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132414765","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548383
M. Marracci, B. Tellini
This paper deals with the use of commercial Nanophosphate™ based Li-Ion cells at high power pulse discharge rates. An ad-hoc experimental setup allows for repeating in an automatic way a series of pulse tests on the cell with discharge currents up to 100C-rate, being C the nominal capacity of the cell. Characterization of cell ageing and State of Health (SOH) behavior during current pulses is discussed throughout the paper.
{"title":"Ageing Characterization of Li - Ion Batteries Discharged at High Pulse Current Rates","authors":"M. Marracci, B. Tellini","doi":"10.1109/RTSI.2018.8548383","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548383","url":null,"abstract":"This paper deals with the use of commercial Nanophosphate™ based Li-Ion cells at high power pulse discharge rates. An ad-hoc experimental setup allows for repeating in an automatic way a series of pulse tests on the cell with discharge currents up to 100C-rate, being C the nominal capacity of the cell. Characterization of cell ageing and State of Health (SOH) behavior during current pulses is discussed throughout the paper.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133192753","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548438
Giuseppe Bernieri, M. Conti, F. Pascucci
Over the last decades, the evolution of information and communication technology has joined the automation and control systems development, leading to Cyber- Physical Systems integration in industrial environments. Since complex threats targeting physical processes require advanced and interdisciplinary security approaches, classic cyber-security tools are ineffective in industrial scenarios. In this paper, we present a modular framework able to provide cyber-physical security for industrial control systems. Our Deep Detection Architecture (DDA) fills the gap between computer science and control theoretic approaches. Moreover, we present an innovative cyber-physical simulation methodology as a baseline for validation purposes.
{"title":"A Novel Architecture for Cyber-Physical Security in Industrial Control Networks","authors":"Giuseppe Bernieri, M. Conti, F. Pascucci","doi":"10.1109/RTSI.2018.8548438","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548438","url":null,"abstract":"Over the last decades, the evolution of information and communication technology has joined the automation and control systems development, leading to Cyber- Physical Systems integration in industrial environments. Since complex threats targeting physical processes require advanced and interdisciplinary security approaches, classic cyber-security tools are ineffective in industrial scenarios. In this paper, we present a modular framework able to provide cyber-physical security for industrial control systems. Our Deep Detection Architecture (DDA) fills the gap between computer science and control theoretic approaches. Moreover, we present an innovative cyber-physical simulation methodology as a baseline for validation purposes.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134019854","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548440
G. Giglia, G. Ala, L. Mistretta, Giuseppe Costantino Giaconia, S. Q. Antonio, H. Rimal
This paper presents a procedure to design EMI filters to reduce the electromagnetic disturbances generated by electrical apparatus used in avionic environment. The method proposed can be useful to save weight and size of the attenuation systems, and keep their effectiveness in agreement with the standard requirements. A design of a set of different filters with different topological characteristics is presented for a case study about an electrical actuator used for an aircraft onboard application. Performances and reliabilities of the attenuation systems are assessed by suitable full compliance experimental tests.
{"title":"Design and Assessment of Optimized EMI Filters for Avionic Applications","authors":"G. Giglia, G. Ala, L. Mistretta, Giuseppe Costantino Giaconia, S. Q. Antonio, H. Rimal","doi":"10.1109/RTSI.2018.8548440","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548440","url":null,"abstract":"This paper presents a procedure to design EMI filters to reduce the electromagnetic disturbances generated by electrical apparatus used in avionic environment. The method proposed can be useful to save weight and size of the attenuation systems, and keep their effectiveness in agreement with the standard requirements. A design of a set of different filters with different topological characteristics is presented for a case study about an electrical actuator used for an aircraft onboard application. Performances and reliabilities of the attenuation systems are assessed by suitable full compliance experimental tests.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114968217","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548450
S. Roberto, D. Scire, G. Lullo, G. Vitale
The modelling of the magnetic losses in the core of ferrite inductors for power conversion circuits has been considered in this paper. On the basis of the Revised Generalized Steinmetz Model (RGSE) an equivalent circuital modelling has been obtained. The losses are modelled as an equivalent resistance connected in parallel to the inductor. The model has been tested under periodic triangular current waveforms.
{"title":"Equivalent Circuit Modelling of Ferrite Inductors Losses","authors":"S. Roberto, D. Scire, G. Lullo, G. Vitale","doi":"10.1109/RTSI.2018.8548450","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548450","url":null,"abstract":"The modelling of the magnetic losses in the core of ferrite inductors for power conversion circuits has been considered in this paper. On the basis of the Revised Generalized Steinmetz Model (RGSE) an equivalent circuital modelling has been obtained. The losses are modelled as an equivalent resistance connected in parallel to the inductor. The model has been tested under periodic triangular current waveforms.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125230183","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548512
Ni Zhu, D. Bétaille, J. Marais, M. Berbineau
Global Navigation Satellite Systems (GNSS) have continually involved in our daily life in the past decades. Among all these GNSS-based applications, there is an increasing number of GNSS-based urban transport applications, especially the critical liability ones, such as the Electronic Toll Collection (ETC) and the Intelligent Transport System (ITS). For these GNSS-based applications, not only positioning accuracy but also its reliability is required. Latter has attracted more and more attention from urban GNSS users. Yet urban environments present great challenges for common commercial GNSS receivers since the existence of local effects such as multipath and the Non-Line-of-Sight (NLOS) receptions. The main objective of this paper is to investigate the integrity performance one can expect from a low-cost common GNSS receiver. Under this framework, this paper proposes an innovation-based integrity monitoring scheme by using an Extended Kalman Filter (EKF) with the help of carrier-power-to-noise ratio $(C/N_{0})$ weighting. The derivations of the Horizontal Protection Level (HPL) for the EKF innovation-based integrity monitoring is also presented in detail. The accuracy and integrity performances are evaluated with real GPS data collected in urban environments. Compared to the classic residual-based snapshot Receiver Autonomous Integrity Monitoring (RAIM), the innovation-based EKF integrity monitoring scheme presents more advantages in terms of accuracy and integrity. With the real dataset collected in urban canyon of Nantes center, the results show that the average size of horizontal position error has been reduced by 1.15 meter with the proposed approach compared to the classic weighted RAIM, the median size of HPL has been reduced by 7.5 meters and the algorithm availability is 100% instead of 98.57 %.
在过去的几十年里，全球导航卫星系统(GNSS)不断融入我们的日常生活。在所有这些基于gnss的应用中，基于gnss的城市交通应用越来越多，特别是关键的责任应用，如电子收费(ETC)和智能交通系统(ITS)。对于这些基于gnss的应用，不仅要求定位精度，而且要求其可靠性。后者越来越受到城市GNSS用户的关注。然而，由于存在多路径和非视距(NLOS)接收等局部影响，城市环境对普通商用GNSS接收器提出了巨大挑战。本文的主要目的是研究低成本通用GNSS接收机的完整性性能。在此框架下，本文提出了一种基于载波功率噪声比$(C/N_{0})$加权的扩展卡尔曼滤波器(EKF)完整性监测方案。详细介绍了基于EKF创新的完整性监测的水平保护水平(HPL)的推导。利用城市环境下的GPS实测数据对系统的精度和完整性进行了评价。与经典的基于残差的快照接收机自主完整性监测(RAIM)方案相比，基于创新的EKF完整性监测方案在准确性和完整性方面更具优势。在南特市中心城市峡谷的真实数据集上，与经典加权RAIM相比，该方法水平位置误差的平均大小减少了1.15 m, HPL的中位数大小减少了7.5 m，算法的可用性从98.57%提高到100%。
{"title":"Extended Kalman Filter (EKF) Innovation-Based Integrity Monitoring Scheme with C / N0 Weighting","authors":"Ni Zhu, D. Bétaille, J. Marais, M. Berbineau","doi":"10.1109/RTSI.2018.8548512","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548512","url":null,"abstract":"Global Navigation Satellite Systems (GNSS) have continually involved in our daily life in the past decades. Among all these GNSS-based applications, there is an increasing number of GNSS-based urban transport applications, especially the critical liability ones, such as the Electronic Toll Collection (ETC) and the Intelligent Transport System (ITS). For these GNSS-based applications, not only positioning accuracy but also its reliability is required. Latter has attracted more and more attention from urban GNSS users. Yet urban environments present great challenges for common commercial GNSS receivers since the existence of local effects such as multipath and the Non-Line-of-Sight (NLOS) receptions. The main objective of this paper is to investigate the integrity performance one can expect from a low-cost common GNSS receiver. Under this framework, this paper proposes an innovation-based integrity monitoring scheme by using an Extended Kalman Filter (EKF) with the help of carrier-power-to-noise ratio $(C/N_{0})$ weighting. The derivations of the Horizontal Protection Level (HPL) for the EKF innovation-based integrity monitoring is also presented in detail. The accuracy and integrity performances are evaluated with real GPS data collected in urban environments. Compared to the classic residual-based snapshot Receiver Autonomous Integrity Monitoring (RAIM), the innovation-based EKF integrity monitoring scheme presents more advantages in terms of accuracy and integrity. With the real dataset collected in urban canyon of Nantes center, the results show that the average size of horizontal position error has been reduced by 1.15 meter with the proposed approach compared to the classic weighted RAIM, the median size of HPL has been reduced by 7.5 meters and the algorithm availability is 100% instead of 98.57 %.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130970051","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 : 2018-09-01DOI: 10.1109/RTSI.2018.8548379
A. Zorzi, M. Calvini
Matrix converters are AC/AC power converters that provide sine-in and sine-out voltage and currents with bidirectional power flow. Since they lack the need of reactive energy storage elements, like bulky DC-bus capacitors, it is possible to obtain high power/volumes ratios, making them fit and appealing for integrating them inside motor housings. Matrix converters, however, present some drawbacks: more switching elements are needed for its operations, as well as information about their current state. This paper deals with the design, the realization and the testing of an intelligent gate driver unit, whose capabilities are not confined to controlling and protecting the switching elements, but also extend to providing all the necessary measurements to the drive controller, without the need of additional external equipment.
{"title":"Intelligent Gate Driver for a Modular Three-Phase Matrix Converter","authors":"A. Zorzi, M. Calvini","doi":"10.1109/RTSI.2018.8548379","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548379","url":null,"abstract":"Matrix converters are AC/AC power converters that provide sine-in and sine-out voltage and currents with bidirectional power flow. Since they lack the need of reactive energy storage elements, like bulky DC-bus capacitors, it is possible to obtain high power/volumes ratios, making them fit and appealing for integrating them inside motor housings. Matrix converters, however, present some drawbacks: more switching elements are needed for its operations, as well as information about their current state. This paper deals with the design, the realization and the testing of an intelligent gate driver unit, whose capabilities are not confined to controlling and protecting the switching elements, but also extend to providing all the necessary measurements to the drive controller, without the need of additional external equipment.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117154445","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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