Pub Date : 2017-09-01DOI: 10.1109/IWMN.2017.8078394
L. Lombardo, S. Corbellini, Ahmed Elsayed, E. Angelini, M. Parvis, S. Grassini
Museum environmental monitoring is an important issue for the artifact conservation. Many solutions have been proposed to tackle this problem, but the museum constraints prevent an easy application in several cases, especially if the monitoring has to be performed in museums where an environmental control system has been already installed. This paper describes a simple though powerful solution, which complies with most of the common constraints and which is based on small sensors implementing a BT-LE wireless protocol coupled with a receiving architecture. The sensing nodes have dimensions of few centimeters, do not require cabling and power supply, and can work unattended for several years. Data are collected by a receiving architecture, which can work either on-line, with immediate data delivery, or off-line when an Internet connection is not available. Users can browse the measurements by using their smart-phones from any place and can download the data on their personal computer. In addition they can browse locally the data also in the absence of any data connection, such as in the case of remote and or recessed sites. The proposed solution has been deployed in three museums, also in the basements, and in an ancient building proving its flexibility and capability to be adapted to the different conditions.
{"title":"Sensor network for museum environmental monitoring","authors":"L. Lombardo, S. Corbellini, Ahmed Elsayed, E. Angelini, M. Parvis, S. Grassini","doi":"10.1109/IWMN.2017.8078394","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078394","url":null,"abstract":"Museum environmental monitoring is an important issue for the artifact conservation. Many solutions have been proposed to tackle this problem, but the museum constraints prevent an easy application in several cases, especially if the monitoring has to be performed in museums where an environmental control system has been already installed. This paper describes a simple though powerful solution, which complies with most of the common constraints and which is based on small sensors implementing a BT-LE wireless protocol coupled with a receiving architecture. The sensing nodes have dimensions of few centimeters, do not require cabling and power supply, and can work unattended for several years. Data are collected by a receiving architecture, which can work either on-line, with immediate data delivery, or off-line when an Internet connection is not available. Users can browse the measurements by using their smart-phones from any place and can download the data on their personal computer. In addition they can browse locally the data also in the absence of any data connection, such as in the case of remote and or recessed sites. The proposed solution has been deployed in three museums, also in the basements, and in an ancient building proving its flexibility and capability to be adapted to the different conditions.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129134969","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078392
El Houssain Ait Mansour, B. Silva, S. Bosse, K. Klein
In both wired and wireless networks, time synchronization is an important service for a wide range of applications in distributed systems. This includes radio interferometry. However, literature researches show that many distributed protocols cannot satisfy sub-ns time synchronization accuracy due to asymmetric delay errors, accumulated jitters and because of the strategy used to compute and adjust offsets. This paper proposes a global time synchronization algorithm in distributed networks. The algorithm allows us to compute and adjust offsets delays between master and each slaves in star topology and minimize asymmetric delays with sub-ns accuracy better than 10 ps and achieved global time synchronization. The theory of the algorithm used is presented and analyzed to prove that it achieves global time synchronization. Simulation results are given to show the performance and limitations of the proposed algorithm.
{"title":"Sub-nanosecond time synchronization mechanism for radio interferometer array","authors":"El Houssain Ait Mansour, B. Silva, S. Bosse, K. Klein","doi":"10.1109/IWMN.2017.8078392","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078392","url":null,"abstract":"In both wired and wireless networks, time synchronization is an important service for a wide range of applications in distributed systems. This includes radio interferometry. However, literature researches show that many distributed protocols cannot satisfy sub-ns time synchronization accuracy due to asymmetric delay errors, accumulated jitters and because of the strategy used to compute and adjust offsets. This paper proposes a global time synchronization algorithm in distributed networks. The algorithm allows us to compute and adjust offsets delays between master and each slaves in star topology and minimize asymmetric delays with sub-ns accuracy better than 10 ps and achieved global time synchronization. The theory of the algorithm used is presented and analyzed to prove that it achieves global time synchronization. Simulation results are given to show the performance and limitations of the proposed algorithm.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132176194","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078403
S. Galetto, P. Bottaro, C. Carrara, F. Secco, A. Guidolin, E. Targa, C. Narduzzi, G. Giorgi
Streaming media applications generate a sizable part of network traffic and represent a significant proportion of network providers' income. The commitment to user satisfaction can be summarized by different concepts, content providers emphasizing quality of experience (QoE), whereas network providers are more focused on quality of service (QoS). Measuring QoS parameters, and understanding the relationship between the two, is essential to enable network tuning for enhanced QoE. Analysis of actual streaming dynamics and detection of impairments require the ability to discriminate between audio and video packet flows. For the purpose we present a cross-layer analysis based on the study of packet flow features obtained by implementing a Support Vector Machine. This paper presents results of a study supported by the use of nTh HighSee, a non-intrusive QoS monitoring tool, where approaches to video/audio detection have been investigated and tested.
{"title":"Detection of video/audio streaming packet flows for non-intrusive QoS/QoE monitoring","authors":"S. Galetto, P. Bottaro, C. Carrara, F. Secco, A. Guidolin, E. Targa, C. Narduzzi, G. Giorgi","doi":"10.1109/IWMN.2017.8078403","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078403","url":null,"abstract":"Streaming media applications generate a sizable part of network traffic and represent a significant proportion of network providers' income. The commitment to user satisfaction can be summarized by different concepts, content providers emphasizing quality of experience (QoE), whereas network providers are more focused on quality of service (QoS). Measuring QoS parameters, and understanding the relationship between the two, is essential to enable network tuning for enhanced QoE. Analysis of actual streaming dynamics and detection of impairments require the ability to discriminate between audio and video packet flows. For the purpose we present a cross-layer analysis based on the study of packet flow features obtained by implementing a Support Vector Machine. This paper presents results of a study supported by the use of nTh HighSee, a non-intrusive QoS monitoring tool, where approaches to video/audio detection have been investigated and tested.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132179812","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078398
A. Buffi, P. Nepa, B. Tellini
This paper presents a measurement system for UHF-RFID tag detection employing leaky coaxial cable as distributed reader antenna. The proposed system is characterized through an experimental analysis in terms of S-parameters. Then the leaky feeder is employed in a measurement setup with commercial UHF-RFID reader. Measurement results show the leaky feeder capability to detect tags independently on its orientation.
{"title":"Measurement system with leaky coaxial cables operating as distributed antennas for UHF-RFID readers","authors":"A. Buffi, P. Nepa, B. Tellini","doi":"10.1109/IWMN.2017.8078398","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078398","url":null,"abstract":"This paper presents a measurement system for UHF-RFID tag detection employing leaky coaxial cable as distributed reader antenna. The proposed system is characterized through an experimental analysis in terms of S-parameters. Then the leaky feeder is employed in a measurement setup with commercial UHF-RFID reader. Measurement results show the leaky feeder capability to detect tags independently on its orientation.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114574055","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078369
G. Frigo, G. Giorgi
The advances in wireless low-power sensors and the increasing demand for portable healthcare monitoring systems have inspired the realization of Wireless Body Sensor Networks (WBSNs). IEEE Std. 802.15.6 defines the communication protocol for WBSN applications in terms of physical and medium access layers. The high generality and flexibility of standard requirements poses the question of how WBSN parameters, i.e. sampling frequency, node priority, superframe duration, have to be carefully set to guarantee a given accuracy level for the extraction and estimation of the biomedical information of interest. In this context, the present paper focuses on the most suitable design of network configuration by considering how the occurrence of missing packets affects the resulting quality of service. Throughout numerical simulations in Matlab, we reproduce a plausible WBSN scenario for monitoring the cardiac activity during physical exercise. The effect of missing packets on the recovered electrocardiographic (ECG) time-series at receiver side has been finally investigated, in terms of root-mean-square error and accuracy of the estimated heart rate, thus providing some criteria for choosing the most suitable network configuration.
{"title":"IEEE 802.15.6 compliant WBSN: A case study","authors":"G. Frigo, G. Giorgi","doi":"10.1109/IWMN.2017.8078369","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078369","url":null,"abstract":"The advances in wireless low-power sensors and the increasing demand for portable healthcare monitoring systems have inspired the realization of Wireless Body Sensor Networks (WBSNs). IEEE Std. 802.15.6 defines the communication protocol for WBSN applications in terms of physical and medium access layers. The high generality and flexibility of standard requirements poses the question of how WBSN parameters, i.e. sampling frequency, node priority, superframe duration, have to be carefully set to guarantee a given accuracy level for the extraction and estimation of the biomedical information of interest. In this context, the present paper focuses on the most suitable design of network configuration by considering how the occurrence of missing packets affects the resulting quality of service. Throughout numerical simulations in Matlab, we reproduce a plausible WBSN scenario for monitoring the cardiac activity during physical exercise. The effect of missing packets on the recovered electrocardiographic (ECG) time-series at receiver side has been finally investigated, in terms of root-mean-square error and accuracy of the estimated heart rate, thus providing some criteria for choosing the most suitable network configuration.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115802248","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078374
F. Colace, D. Santaniello, M. Casillo, Fabio Clarizia
Our daily life is characterized by countless human relationships. Every day we go to work, do shopping, partake in leisure time. At the base, there are some choices that lead us to make a series of activities; In which we interact and relate with many people. What influences the choices we make? Answering this question can be a very daunting task. However, it can help us to identify the main key elements that influence the behaviour of people. Arguably the weather conditions have a major impact in our daily decisions and events, with the more extreme weather having a stronger influence our lives. How can we tie Human behaviour to environmental conditions? Can we determine the human behaviour during a catastrophic environmental event? To answer these questions, we can query various information sources including social networks. These represent a good starting point with respect to the analysis of a human behaviour aspect. The aim of the paper is to develop a methodology in gaining an understanding to what is happening on the territory from user behaviours and vice versa. The paper will conclude with a discussion of the results generated from the application of this methodology to real cases.
{"title":"BeCAMS: A behaviour context aware monitoring system","authors":"F. Colace, D. Santaniello, M. Casillo, Fabio Clarizia","doi":"10.1109/IWMN.2017.8078374","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078374","url":null,"abstract":"Our daily life is characterized by countless human relationships. Every day we go to work, do shopping, partake in leisure time. At the base, there are some choices that lead us to make a series of activities; In which we interact and relate with many people. What influences the choices we make? Answering this question can be a very daunting task. However, it can help us to identify the main key elements that influence the behaviour of people. Arguably the weather conditions have a major impact in our daily decisions and events, with the more extreme weather having a stronger influence our lives. How can we tie Human behaviour to environmental conditions? Can we determine the human behaviour during a catastrophic environmental event? To answer these questions, we can query various information sources including social networks. These represent a good starting point with respect to the analysis of a human behaviour aspect. The aim of the paper is to develop a methodology in gaining an understanding to what is happening on the territory from user behaviours and vice versa. The paper will conclude with a discussion of the results generated from the application of this methodology to real cases.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"462 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131579747","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078379
G. Scarpato, A. Esposito, T. Caputo, M. Orazi, C. Martino
The paper presents the design and implementation of an integrated wireless network that support to the multiparametric geophysical monitoring network of the Campi Flegrei volcanic area. The wireless network is equipped with a tool for real-time monitoring and fault detection. The enhancement of the transmission system with respect to the previously existing one has been realized in view of the increased need for seismic monitoring, which is a consequence of the drilling of an exploration well for scientific purposes. The goal is to increase the performance of the recently deployed transmission system in terms of availability and reliability, given the high seismic risk and hazard associated with the experiment. Thanks to the automated monitoring tool, a significant increase in the availability of the system as well as an improvement in the quality of the connection are achieved.
{"title":"Real-time optimization tool for wireless data transmission system: An application to Campi Flegrei (Italy) volcano surveillance","authors":"G. Scarpato, A. Esposito, T. Caputo, M. Orazi, C. Martino","doi":"10.1109/IWMN.2017.8078379","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078379","url":null,"abstract":"The paper presents the design and implementation of an integrated wireless network that support to the multiparametric geophysical monitoring network of the Campi Flegrei volcanic area. The wireless network is equipped with a tool for real-time monitoring and fault detection. The enhancement of the transmission system with respect to the previously existing one has been realized in view of the increased need for seismic monitoring, which is a consequence of the drilling of an exploration well for scientific purposes. The goal is to increase the performance of the recently deployed transmission system in terms of availability and reliability, given the high seismic risk and hazard associated with the experiment. Thanks to the automated monitoring tool, a significant increase in the availability of the system as well as an improvement in the quality of the connection are achieved.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134173252","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078366
F. D’Agostino, F. Ferrara, C. Gennarelli, R. Guerriero, M. Migliozzi
This work concerns the development of an efficient near-field/far-field (NF/FF) transformation technique with spherical spiral scanning suitable for an offset mounted quasi-planar antenna. Such a NF/FF transformation, relying on the nonredundant sampling representations of electromagnetic fields, requires practically the same number of NF data both when the antenna under test (AUT) is onset and offset mounted, since such a number depends only on the surface modelling the AUT. It is developed by properly applying the unified theory of spiral scannings for non-volumetric antennas, when the AUT is considered as contained in a flexible surface formed by two circular bowls with the same aperture and eventually different bending radii. Some numerical results assessing the accuracy and the robustness of the proposed technique are shown.
{"title":"Nonredundant spherical spiral NF/FF transformation accounting for an offset mounting of an electrically large quasi-planar AUT","authors":"F. D’Agostino, F. Ferrara, C. Gennarelli, R. Guerriero, M. Migliozzi","doi":"10.1109/IWMN.2017.8078366","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078366","url":null,"abstract":"This work concerns the development of an efficient near-field/far-field (NF/FF) transformation technique with spherical spiral scanning suitable for an offset mounted quasi-planar antenna. Such a NF/FF transformation, relying on the nonredundant sampling representations of electromagnetic fields, requires practically the same number of NF data both when the antenna under test (AUT) is onset and offset mounted, since such a number depends only on the surface modelling the AUT. It is developed by properly applying the unified theory of spiral scannings for non-volumetric antennas, when the AUT is considered as contained in a flexible surface formed by two circular bowls with the same aperture and eventually different bending radii. Some numerical results assessing the accuracy and the robustness of the proposed technique are shown.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133730129","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078381
F. Bonavolontã, A. Tedesco, R. S. L. Moriello, Antonio Tufano
The current revolution of the manufacturing sector, usually referred to as Industry 4.0, is deeply modifying the traditional production paradigms. The availability of cost-effective sensing and/or computing elements as well as ad-hoc communications protocols are, in fact, making it possible to provide the whole supply chain with a global awareness about the production process. Selecting the most adequate protocol results fundamental to assure the best integration of the industrial machines with the current de-facto information framework, i.e. Internet of Things. Stemming from their past experiences on wireless communication and distributed measurement systems, the authors will provide hereinafter a proper roadmap between the different and most common communication protocols according both to the wireless operating range and industrial requirements.
{"title":"Enabling wireless technologies for industry 4.0: State of the art","authors":"F. Bonavolontã, A. Tedesco, R. S. L. Moriello, Antonio Tufano","doi":"10.1109/IWMN.2017.8078381","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078381","url":null,"abstract":"The current revolution of the manufacturing sector, usually referred to as Industry 4.0, is deeply modifying the traditional production paradigms. The availability of cost-effective sensing and/or computing elements as well as ad-hoc communications protocols are, in fact, making it possible to provide the whole supply chain with a global awareness about the production process. Selecting the most adequate protocol results fundamental to assure the best integration of the industrial machines with the current de-facto information framework, i.e. Internet of Things. Stemming from their past experiences on wireless communication and distributed measurement systems, the authors will provide hereinafter a proper roadmap between the different and most common communication protocols according both to the wireless operating range and industrial requirements.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125040094","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 : 2017-09-01DOI: 10.1109/IWMN.2017.8078357
A. Moschitta, A. D. Angelis, Francesco Santoni, M. Dionigi, P. Carbone, G. D. Angelis
In this paper, a technique for accurate estimation of the moment of magnetic dipole is proposed. The achievable accuracy is investigated, as a function of measurement noise affecting estimation of magnetic field cartesian components. The proposed technique is validated both via simulations and experimentally.
{"title":"Accurate estimation of a coil magnetic dipole moment","authors":"A. Moschitta, A. D. Angelis, Francesco Santoni, M. Dionigi, P. Carbone, G. D. Angelis","doi":"10.1109/IWMN.2017.8078357","DOIUrl":"https://doi.org/10.1109/IWMN.2017.8078357","url":null,"abstract":"In this paper, a technique for accurate estimation of the moment of magnetic dipole is proposed. The achievable accuracy is investigated, as a function of measurement noise affecting estimation of magnetic field cartesian components. The proposed technique is validated both via simulations and experimentally.","PeriodicalId":201479,"journal":{"name":"2017 IEEE International Workshop on Measurement and Networking (M&N)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115893222","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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