Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114813
Dirk Fischer, Robert Rohn, R. Mallwitz
This paper describes features of an SiC-inverter for aviation. It is designed to work in an integrated manner close to the corresponding motor and propeller, sharing a common cooling system and suiting the geometrical conditions within the nacelle. Some design aspects are examined in detail, such as the distributed DC-link, serving the complex geometry of the power modules with very low stray inductance. Control strategies for the symmetrical, six-phase systems are explained. Prototype measurements are given to underline some design aspects. The complete system is designed to fulfill flight requirements and is to be approved in a wind tunnel test environment.
{"title":"Design Approach of an Integrated SiC-Inverter for an Electric Aircraft","authors":"Dirk Fischer, Robert Rohn, R. Mallwitz","doi":"10.1109/ESARS-ITEC57127.2023.10114813","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114813","url":null,"abstract":"This paper describes features of an SiC-inverter for aviation. It is designed to work in an integrated manner close to the corresponding motor and propeller, sharing a common cooling system and suiting the geometrical conditions within the nacelle. Some design aspects are examined in detail, such as the distributed DC-link, serving the complex geometry of the power modules with very low stray inductance. Control strategies for the symmetrical, six-phase systems are explained. Prototype measurements are given to underline some design aspects. The complete system is designed to fulfill flight requirements and is to be approved in a wind tunnel test environment.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79872685","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114843
A. Navarro-Temoche, E. Ibarra, I. Kortabarria, A. Sierra-González, I. Elósegui
In this paper, a flux weakening control strategy based on a vector space decomposition (VSD) model is proposed for asymmetrical dual three-phase interior permanent magnet synchronous machines (IPMSMs). This strategy consists of a voltage magnitude feedback loop which varies the actual speed when enters in flux weakening mode or deviations occur in the electrical parameters of the machine, providing additional robustness. Validity of the proposal is demonstrated by simulations carried out over standardised driving cycles, taking into account parameter mismatches.
{"title":"Normalised flux weakening control technique acting on the actual speed for automotive dual three-phase IPMSMs","authors":"A. Navarro-Temoche, E. Ibarra, I. Kortabarria, A. Sierra-González, I. Elósegui","doi":"10.1109/ESARS-ITEC57127.2023.10114843","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114843","url":null,"abstract":"In this paper, a flux weakening control strategy based on a vector space decomposition (VSD) model is proposed for asymmetrical dual three-phase interior permanent magnet synchronous machines (IPMSMs). This strategy consists of a voltage magnitude feedback loop which varies the actual speed when enters in flux weakening mode or deviations occur in the electrical parameters of the machine, providing additional robustness. Validity of the proposal is demonstrated by simulations carried out over standardised driving cycles, taking into account parameter mismatches.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"141 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80418904","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114825
Ahmed A. Ibrahim, T. Caldognetto, D. Biadene, P. Mattavelli
Isolated multi-port converters can interconnect several sources and loads operating at different voltage levels by their ports, with the advantage of galvanic isolation and shared magnetics. However, challenges exist for such converters, due to coupling between the ports, the high number of modulation variables, and, in general, their modeling complexity. This paper discusses the operation of the quad-active bridge (QAB) and presents its improved operation by a model-free four-dimensional ripple correlation control (4D-RCC). First, fundamental component analysis of the converter is carried out for the QAB, driving a decoupling matrix that ensures good closed-loop control performance for each port individually. Then, the 4D-RCC is presented in the case of the QAB to perform an online optimization of the overall converter efficiency. The presented optimization exploits orthogonal signals for the simultaneous adjustment of the duty-cycles of the four ports of the QAB. The validation of the analytical results and the proposed optimization approach are reported by Matlab/Simulink simulations and experimental results considering a converter prototype rated 5kW.
{"title":"Online Loss Reduction of Isolated Bidirectional DC-DC Quad-Active Bridge Converters","authors":"Ahmed A. Ibrahim, T. Caldognetto, D. Biadene, P. Mattavelli","doi":"10.1109/ESARS-ITEC57127.2023.10114825","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114825","url":null,"abstract":"Isolated multi-port converters can interconnect several sources and loads operating at different voltage levels by their ports, with the advantage of galvanic isolation and shared magnetics. However, challenges exist for such converters, due to coupling between the ports, the high number of modulation variables, and, in general, their modeling complexity. This paper discusses the operation of the quad-active bridge (QAB) and presents its improved operation by a model-free four-dimensional ripple correlation control (4D-RCC). First, fundamental component analysis of the converter is carried out for the QAB, driving a decoupling matrix that ensures good closed-loop control performance for each port individually. Then, the 4D-RCC is presented in the case of the QAB to perform an online optimization of the overall converter efficiency. The presented optimization exploits orthogonal signals for the simultaneous adjustment of the duty-cycles of the four ports of the QAB. The validation of the analytical results and the proposed optimization approach are reported by Matlab/Simulink simulations and experimental results considering a converter prototype rated 5kW.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"13 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83102817","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114886
E. D. Fazio, Francesco Porpora, M. Di Monaco, G. Tomasso
Cell-to-cell voltage imbalance represents a key issue that limits the usable capacity of a battery pack and increases the risks of possible hazard conditions. Active cell equalization circuits integrated within the architecture of Battery Management Systems (BMSs) strongly contribute in reducing and mitigating the occurrence of imbalance conditions by transferring energy between the most charged cells and the least charged ones. However, the adoption of active equalizers for lithium-ion battery systems is currently limited by incomplete knowledge regarding their actual performances and ranges of operability. In this paper, a cell equalizer based on a Multiple Active Bridge (MAB) converter has been investigated and an experimental prototype has been developed with the aim of quantitatively evaluating its performances considering different imbalance conditions. A Hardware-In-the-Loop approach based on an experimentally-calibrated lithium-ion cell has been implemented in order to correctly compare the performances of the cell equalizer avoiding the impact of thermal gradients and aging conditions among the cells. Experimental results have been carried out and different performance parameters have been defined for the analysis, including the residual voltage imbalance at the end of the equalization process, the energy efficiency and the equalization time.
{"title":"Performance Analysis of a Cell Equalizer based on a Multiple Active Bridge","authors":"E. D. Fazio, Francesco Porpora, M. Di Monaco, G. Tomasso","doi":"10.1109/ESARS-ITEC57127.2023.10114886","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114886","url":null,"abstract":"Cell-to-cell voltage imbalance represents a key issue that limits the usable capacity of a battery pack and increases the risks of possible hazard conditions. Active cell equalization circuits integrated within the architecture of Battery Management Systems (BMSs) strongly contribute in reducing and mitigating the occurrence of imbalance conditions by transferring energy between the most charged cells and the least charged ones. However, the adoption of active equalizers for lithium-ion battery systems is currently limited by incomplete knowledge regarding their actual performances and ranges of operability. In this paper, a cell equalizer based on a Multiple Active Bridge (MAB) converter has been investigated and an experimental prototype has been developed with the aim of quantitatively evaluating its performances considering different imbalance conditions. A Hardware-In-the-Loop approach based on an experimentally-calibrated lithium-ion cell has been implemented in order to correctly compare the performances of the cell equalizer avoiding the impact of thermal gradients and aging conditions among the cells. Experimental results have been carried out and different performance parameters have been defined for the analysis, including the residual voltage imbalance at the end of the equalization process, the energy efficiency and the equalization time.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"10 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89896876","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114865
M. A. Qamar, Àlber Filbà-Martínez, S. Busquets-Monge, Wang Kui
Multilevel $pi$ -type and ANPC converters without flying capacitors and clamping diodes are emerging candidates for industrial applications due to their simple structure, less number of devices, and better harmonic performance. However, the voltage balancing difficulty is the key issue of these topologies similar to diode-clamped topology under conventional PWM methods. The unbalance of capacitors voltages may affect the system integrity and stability, and may degrade harmonic performance. To sort out this issue, a simplified virtual vector PWM method to balance the dc-link capacitors voltage of four-level three-phase $pi$ -type and ANPC converters is presented in this paper. Simulation results show how easily and efficiently the proposed method can control the voltage of the capacitors for different modulation index values under balanced and unbalanced loads.
{"title":"Capacitor Voltage Balancing of Four-Level ANPC and π-type Converters Based on Simplified Virtual-VectorPWM","authors":"M. A. Qamar, Àlber Filbà-Martínez, S. Busquets-Monge, Wang Kui","doi":"10.1109/ESARS-ITEC57127.2023.10114865","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114865","url":null,"abstract":"Multilevel $pi$ -type and ANPC converters without flying capacitors and clamping diodes are emerging candidates for industrial applications due to their simple structure, less number of devices, and better harmonic performance. However, the voltage balancing difficulty is the key issue of these topologies similar to diode-clamped topology under conventional PWM methods. The unbalance of capacitors voltages may affect the system integrity and stability, and may degrade harmonic performance. To sort out this issue, a simplified virtual vector PWM method to balance the dc-link capacitors voltage of four-level three-phase $pi$ -type and ANPC converters is presented in this paper. Simulation results show how easily and efficiently the proposed method can control the voltage of the capacitors for different modulation index values under balanced and unbalanced loads.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"75 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86354499","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114863
Xingyu Yan, Yiren Zhu, Zhenyu Wang, Tao Yang, S. Bozhko, P. Wheeler
Dual active bridge converter (DAB) is an important power electronics in the DC distribution system of electric aircraft. It is used to convert generated high DC voltage to lower DC voltage, and it can be used between battery and low voltage bus to stabilize the supplied DC power. This paper proposes a modelling and control method for the DAB converter to regulate the load voltage. It uses a simplified method by focusing only on the fundamental component of the square waves of DAB converter. And the controlled object of this method is the square of load voltage which makes it simpler than the conventional method. The simulated results of the controlled system are also presented in the paper.
{"title":"Simplified Modelling and Control of Dual Active Bridge Converter for Future Electrified Aerospace Application","authors":"Xingyu Yan, Yiren Zhu, Zhenyu Wang, Tao Yang, S. Bozhko, P. Wheeler","doi":"10.1109/ESARS-ITEC57127.2023.10114863","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114863","url":null,"abstract":"Dual active bridge converter (DAB) is an important power electronics in the DC distribution system of electric aircraft. It is used to convert generated high DC voltage to lower DC voltage, and it can be used between battery and low voltage bus to stabilize the supplied DC power. This paper proposes a modelling and control method for the DAB converter to regulate the load voltage. It uses a simplified method by focusing only on the fundamental component of the square waves of DAB converter. And the controlled object of this method is the square of load voltage which makes it simpler than the conventional method. The simulated results of the controlled system are also presented in the paper.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"47 4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82701726","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114836
Alessandro Saldarini, Cristiano Colombo, M. Longo, M. Brenna, S. Miraftabzadeh, W. Yaici
In order to improve the current existing water public transport service, this paper aims to electrification of water taxis in Venice, a widely used means of transportation in the lagoon city by tourists. In particular, the section that connects San Marco square to Marco Polo airport, which is the one with the longest distance, is analyzed. Following a brief introduction to landscape water transport and its infrastructure in the city of Venice, this paper presents the modeling of the electric water taxi taking into account the needs and peculiarities of the boat and of the city itself. Subsequently, an agent-based approach using the AnyLogic software tool simulates the round trip, calculating energy consumption and analyzing the state of charge profile.
{"title":"Water Transport Decarbonization: Preliminary Case Study in Venice","authors":"Alessandro Saldarini, Cristiano Colombo, M. Longo, M. Brenna, S. Miraftabzadeh, W. Yaici","doi":"10.1109/ESARS-ITEC57127.2023.10114836","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114836","url":null,"abstract":"In order to improve the current existing water public transport service, this paper aims to electrification of water taxis in Venice, a widely used means of transportation in the lagoon city by tourists. In particular, the section that connects San Marco square to Marco Polo airport, which is the one with the longest distance, is analyzed. Following a brief introduction to landscape water transport and its infrastructure in the city of Venice, this paper presents the modeling of the electric water taxi taking into account the needs and peculiarities of the boat and of the city itself. Subsequently, an agent-based approach using the AnyLogic software tool simulates the round trip, calculating energy consumption and analyzing the state of charge profile.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"29 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85662432","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114842
Anastastios Manos, D. Lyridis, J. Prousalidis
This paper discusses the new challenges from the entrepreneurial point of view raised due to the electrification of ships and ports within the framework of a global effort to reduce emissions, among others, in the maritime sector. Within this context, alternatives ways that the maritime business can work in a framework of open electric energy markets are discussed, while a proposed innovative idea planned to be implemented in Greece is also presented.
{"title":"The Maritime Sector in the Electric Energy Markets","authors":"Anastastios Manos, D. Lyridis, J. Prousalidis","doi":"10.1109/ESARS-ITEC57127.2023.10114842","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114842","url":null,"abstract":"This paper discusses the new challenges from the entrepreneurial point of view raised due to the electrification of ships and ports within the framework of a global effort to reduce emissions, among others, in the maritime sector. Within this context, alternatives ways that the maritime business can work in a framework of open electric energy markets are discussed, while a proposed innovative idea planned to be implemented in Greece is also presented.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"10 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88664805","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114900
Haoran Geng, M. Miyatake
Besides operation, railway operators are tending to focus on energy saving from construction recently, which can lead to cost saving. Among them, the most representative means are energy saving slope and section running time optimisation. This paper proposed an energy economy method that coordinating optimise the section running time and the energy saving slope of gradient. The double layer optimisation model, includes model of train energy efficient operation and the coordinating optimisation model, is be formulated. Dynamic programming and traverse calculation are used to solve the optimal solution, respectively. The result shows the energy saving slop not always effectively and the coordinating optimisation can significantly improve the energy saving effect.
{"title":"Investigation and Optimisation of Urban Rail Transit Lifecycle Energy Saving in Coordinating Section Running Time and Slope","authors":"Haoran Geng, M. Miyatake","doi":"10.1109/ESARS-ITEC57127.2023.10114900","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114900","url":null,"abstract":"Besides operation, railway operators are tending to focus on energy saving from construction recently, which can lead to cost saving. Among them, the most representative means are energy saving slope and section running time optimisation. This paper proposed an energy economy method that coordinating optimise the section running time and the energy saving slope of gradient. The double layer optimisation model, includes model of train energy efficient operation and the coordinating optimisation model, is be formulated. Dynamic programming and traverse calculation are used to solve the optimal solution, respectively. The result shows the energy saving slop not always effectively and the coordinating optimisation can significantly improve the energy saving effect.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"23 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88228040","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 : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114838
Adarsh Vijay
More than 80 percent of collisions will result from the driver's negligence brought on by drunkenness and drowsiness. Numerous monitoring systems based on machine learning are being included in some cars. All these innovations are made in new automobiles as technology advances at a supersonic rate but leave a lot of empty spaces in each breakthrough. However, no single mechanism is now in place to assess the driver's identification, level of intoxication, and drowsiness. So this paper proposes a feasible system for monitoring real-time driver's wellness: “Intelligent driver monitoring System for safe driving” which gives suitable warnings and notifications to the user and the authority if necessary. This system includes authentication of the user followed by Drunkenness detection and Drowsiness detection. The user can interact with the Graphical user interface and the camera provided in the automobile frequently monitors the driver using Machine learning and neural network techniques, this checking method is implemented. This multi-model system uses many layers in Convolution neural network model and 92 percent accuracy is shown throughout the testing phase so that this system can replace any existing system which is only based on single models.
{"title":"Intelligent Driver Monitoring System for Safe Driving","authors":"Adarsh Vijay","doi":"10.1109/ESARS-ITEC57127.2023.10114838","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114838","url":null,"abstract":"More than 80 percent of collisions will result from the driver's negligence brought on by drunkenness and drowsiness. Numerous monitoring systems based on machine learning are being included in some cars. All these innovations are made in new automobiles as technology advances at a supersonic rate but leave a lot of empty spaces in each breakthrough. However, no single mechanism is now in place to assess the driver's identification, level of intoxication, and drowsiness. So this paper proposes a feasible system for monitoring real-time driver's wellness: “Intelligent driver monitoring System for safe driving” which gives suitable warnings and notifications to the user and the authority if necessary. This system includes authentication of the user followed by Drunkenness detection and Drowsiness detection. The user can interact with the Graphical user interface and the camera provided in the automobile frequently monitors the driver using Machine learning and neural network techniques, this checking method is implemented. This multi-model system uses many layers in Convolution neural network model and 92 percent accuracy is shown throughout the testing phase so that this system can replace any existing system which is only based on single models.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"22 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84387943","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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