Pub Date : 2015-10-01DOI: 10.1109/ATC.2015.7388357
Duc Ngoc Minh Dang, Ha Dang, P. L. Vo, Q. Ngo
Vehicular Ad hoc NETworks (VANETs), an important part of the Intelligent Transportation System (ITS), should provide the reliable safety message broadcasts and efficient non-safety message transmissions to vehicles. The IEEE 1609.4 MAC is designed for VANETs to support multi-channel operations, but it is neither reliable enough for the safety message broadcast nor efficient enough in the service channel (SCH) resources utilization. In this paper, we propose a Cooperative - Efficient - Reliable multi-channel MAC for VANETs, named CER-MAC, which supports both TDMA and CSMA schemes in accessing the control channel (CCH) and provides cooperation in broadcasting the safety messages. The CER-MAC allows vehicle nodes to send safety messages without collision on the CCH within their reserved time slots or the time slots permitted by the neighbors. Moreover, the CER-MAC utilizes the SCH resources during the control channel interval (CCHI) for the non-safety message transmissions. Compared to the current IEEE 1609.4, the proposed CER-MAC protocol outperforms in the reliability for the safety message broadcast and the efficiency for the service channel utilization.
{"title":"A Cooperative — Efficient — Reliable MAC protocol for Vehicular Ad hoc Networks","authors":"Duc Ngoc Minh Dang, Ha Dang, P. L. Vo, Q. Ngo","doi":"10.1109/ATC.2015.7388357","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388357","url":null,"abstract":"Vehicular Ad hoc NETworks (VANETs), an important part of the Intelligent Transportation System (ITS), should provide the reliable safety message broadcasts and efficient non-safety message transmissions to vehicles. The IEEE 1609.4 MAC is designed for VANETs to support multi-channel operations, but it is neither reliable enough for the safety message broadcast nor efficient enough in the service channel (SCH) resources utilization. In this paper, we propose a Cooperative - Efficient - Reliable multi-channel MAC for VANETs, named CER-MAC, which supports both TDMA and CSMA schemes in accessing the control channel (CCH) and provides cooperation in broadcasting the safety messages. The CER-MAC allows vehicle nodes to send safety messages without collision on the CCH within their reserved time slots or the time slots permitted by the neighbors. Moreover, the CER-MAC utilizes the SCH resources during the control channel interval (CCHI) for the non-safety message transmissions. Compared to the current IEEE 1609.4, the proposed CER-MAC protocol outperforms in the reliability for the safety message broadcast and the efficiency for the service channel utilization.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127191739","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388354
Long Nguyen, K. Le, Loan Pham-Nguyen Hanoi
In this paper, we propose an ultra-small low dropout regulator (LDO) for NFC tag combining two new techniques. Firstly, a voltage bandgap is designed using only MOSFET instead of BJT in conventional architecture to reduce significantly the chip size. Secondly, to increase the stability of LDO we proposed a controlled circuit to vary output resistance according to output-load current. The latter technique also allows removing the feedback capacitor normally used in a conventional LDO architecture. The proposed LDO has a stable output voltage at 1.8V with input voltage varying from 2.1V to 3.3 V, a maximum current of 10 mA, and only 0.0058 mm2 chip area.
{"title":"An ultra-small capacitor-less LDO with controlled-resistance technique and MOSFET-only bandgap","authors":"Long Nguyen, K. Le, Loan Pham-Nguyen Hanoi","doi":"10.1109/ATC.2015.7388354","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388354","url":null,"abstract":"In this paper, we propose an ultra-small low dropout regulator (LDO) for NFC tag combining two new techniques. Firstly, a voltage bandgap is designed using only MOSFET instead of BJT in conventional architecture to reduce significantly the chip size. Secondly, to increase the stability of LDO we proposed a controlled circuit to vary output resistance according to output-load current. The latter technique also allows removing the feedback capacitor normally used in a conventional LDO architecture. The proposed LDO has a stable output voltage at 1.8V with input voltage varying from 2.1V to 3.3 V, a maximum current of 10 mA, and only 0.0058 mm2 chip area.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132148059","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388329
K. Tuan, P. M. Cuong Huynh
This paper presents the design of the RF transmitter of RFID reader using 180-nm CMOS technology at 868 MHz. The design of RF transmitter of RFID reader in this paper includes up-conversion mixer, balun and class E of power amplifier. These results are maximum output power of 20.34 dBm, OP1dB of 19.3 dBm, PAE of 38.35% and power consumption of 168.57 mW.
{"title":"A 180-nm CMOS RF transmitter for UHF RFID reader","authors":"K. Tuan, P. M. Cuong Huynh","doi":"10.1109/ATC.2015.7388329","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388329","url":null,"abstract":"This paper presents the design of the RF transmitter of RFID reader using 180-nm CMOS technology at 868 MHz. The design of RF transmitter of RFID reader in this paper includes up-conversion mixer, balun and class E of power amplifier. These results are maximum output power of 20.34 dBm, OP1dB of 19.3 dBm, PAE of 38.35% and power consumption of 168.57 mW.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115258607","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388322
Norihiro Sota, H. Higaki
Wireless multihop networks consist of numbers of wireless nodes. Hence, introduction of failure detection and recovery is mandatory. Until now, various failure detection and recovery methods such as route switch and multiple routes detection have been proposed based on an assumption with stop failure model. However, the assumption that failed wireless nodes never transmit any messages too restricts the area where the proposed methods can be applied. In order to solve this problem, we propose a novel failure detection and notification method that supports not only stop failure but also Byzantine failure. That is, it is possible for failed wireless nodes to transmit malicious messages not according to the data message transmission and the failure detection and notification protocols unconsciously due to failure or even intentionally. Here, the design of failure detection and notification protocols is critical. In this paper, Byzantine failures in an intermediate node are detected by its multiple neighbor wireless nodes cooperatively since the neighbor wireless nodes are also vulnerable and might transmit erroneous failure notifications. From the performance viewpoint, no additional control messages are required to be transmitted while no failure wireless node is detected, i.e., in usual data message transmissions.
{"title":"Ad-Hoc routing and data transmission protocol with Byzantine failure detection and isolation","authors":"Norihiro Sota, H. Higaki","doi":"10.1109/ATC.2015.7388322","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388322","url":null,"abstract":"Wireless multihop networks consist of numbers of wireless nodes. Hence, introduction of failure detection and recovery is mandatory. Until now, various failure detection and recovery methods such as route switch and multiple routes detection have been proposed based on an assumption with stop failure model. However, the assumption that failed wireless nodes never transmit any messages too restricts the area where the proposed methods can be applied. In order to solve this problem, we propose a novel failure detection and notification method that supports not only stop failure but also Byzantine failure. That is, it is possible for failed wireless nodes to transmit malicious messages not according to the data message transmission and the failure detection and notification protocols unconsciously due to failure or even intentionally. Here, the design of failure detection and notification protocols is critical. In this paper, Byzantine failures in an intermediate node are detected by its multiple neighbor wireless nodes cooperatively since the neighbor wireless nodes are also vulnerable and might transmit erroneous failure notifications. From the performance viewpoint, no additional control messages are required to be transmitted while no failure wireless node is detected, i.e., in usual data message transmissions.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122859179","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388323
Duy Vu
In this paper, we propose a new approach that is to combine a model of time series with Bayesian networks to create a new forecasting model to predict the occurrence of harmful pests of rice. Ability of forecast system knows when immigrant brown plant hopper (BPH) peaks to make a calendar of sowing rice to avoid them. This is indeed helpful for experts as well as farmers to sow rice of seeds actively and simultaneously on a large scale for each new rice crop. Using knowledge of experts and processing historical data combined with data at present time are able to create more highly accurate forecasts than just relying on historical data. This model is a decision support system for experts in the Plant protection centre of the South of Vietnam to guide farmers to sow cultivation in a specific area, pilot for 22 Southern provinces.
{"title":"A combination model based on a neural network autoregression and Bayesian network to forecast for avoiding brown plant hopper","authors":"Duy Vu","doi":"10.1109/ATC.2015.7388323","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388323","url":null,"abstract":"In this paper, we propose a new approach that is to combine a model of time series with Bayesian networks to create a new forecasting model to predict the occurrence of harmful pests of rice. Ability of forecast system knows when immigrant brown plant hopper (BPH) peaks to make a calendar of sowing rice to avoid them. This is indeed helpful for experts as well as farmers to sow rice of seeds actively and simultaneously on a large scale for each new rice crop. Using knowledge of experts and processing historical data combined with data at present time are able to create more highly accurate forecasts than just relying on historical data. This model is a decision support system for experts in the Plant protection centre of the South of Vietnam to guide farmers to sow cultivation in a specific area, pilot for 22 Southern provinces.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127794684","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388413
Van-Thien Luong, Minh-Tuan Le, D. Nguyen, X. Tran, Vu-Duc Ngo
In this paper, we present a new upper bound for the bit error probability (BEP) of the so-called High-Rate Spatial Modulation (HR-SM) system using QAM modulation introduced by Thu Phuong Nguyen et al. in [1], over a quasi-static Rayleigh fading channel. Our approach based on the Verdu's theorem [2], the concept of the spatial constellation (SC) codewords and maximum likelihood (ML) decoder in [1] results in the new upper bound which is tighter than the union bound due to eliminating a number of redundant pairwise error probabilities (PEPs). Therefore, by using the new upper bound rather than the union bound, we can evaluate the bit-error performance of HR-SM systems more exactly, especially when the signal-to-noise power ratio (SNR) is sufficiently high.
{"title":"New upper bound for high-rate spatial modulation systems using QAM modulation","authors":"Van-Thien Luong, Minh-Tuan Le, D. Nguyen, X. Tran, Vu-Duc Ngo","doi":"10.1109/ATC.2015.7388413","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388413","url":null,"abstract":"In this paper, we present a new upper bound for the bit error probability (BEP) of the so-called High-Rate Spatial Modulation (HR-SM) system using QAM modulation introduced by Thu Phuong Nguyen et al. in [1], over a quasi-static Rayleigh fading channel. Our approach based on the Verdu's theorem [2], the concept of the spatial constellation (SC) codewords and maximum likelihood (ML) decoder in [1] results in the new upper bound which is tighter than the union bound due to eliminating a number of redundant pairwise error probabilities (PEPs). Therefore, by using the new upper bound rather than the union bound, we can evaluate the bit-error performance of HR-SM systems more exactly, especially when the signal-to-noise power ratio (SNR) is sufficiently high.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133918686","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388386
Chi-Ngon Nguyen, Nguyen Thai-Nghe
This study proposes an approach for building a Semi-Automatic Agricultural Extension Support System based on mobile communication networks and machine learning. This system can be used to link farmers and agricultural experts, thus, it can be considered as an online “farmer-expert bridge”. To build the system, at first, we need to build modules for sending and receiving SMS/MMS messages. These modules are important for farmers to send questions or images, e.g., about their rice status, that need to be consulted by the agricultural experts. Next, a message classification module is built using a combination of machine learning method (e.g., SVM) with image and text processing technologies. Finally, a whole web-based system is conducted to integrate these modules. Initial results show that construction of this system is feasible. This is also the foundation for building an online automatic agricultural extension support system through mobile communication networks.
{"title":"An agricultural extension support system on mobile communication networks","authors":"Chi-Ngon Nguyen, Nguyen Thai-Nghe","doi":"10.1109/ATC.2015.7388386","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388386","url":null,"abstract":"This study proposes an approach for building a Semi-Automatic Agricultural Extension Support System based on mobile communication networks and machine learning. This system can be used to link farmers and agricultural experts, thus, it can be considered as an online “farmer-expert bridge”. To build the system, at first, we need to build modules for sending and receiving SMS/MMS messages. These modules are important for farmers to send questions or images, e.g., about their rice status, that need to be consulted by the agricultural experts. Next, a message classification module is built using a combination of machine learning method (e.g., SVM) with image and text processing technologies. Finally, a whole web-based system is conducted to integrate these modules. Initial results show that construction of this system is feasible. This is also the foundation for building an online automatic agricultural extension support system through mobile communication networks.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116113904","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388307
G. Luu, P. Ravier, O. Buttelli
The aim of this study is to validate the time delay estimators recently developed by our group. We test the estimators with the real data in both case isometric isotonic and isometric anisotonic contraction in order to take into account the stationarity and the non-stationarity of the data. The results indicate that these estimators have coherent behaviors with the law of Henneman up to 60% Maximal Voluntary Contraction(MVC) in both cases.
{"title":"Validation of the time delay estimators applied to the surface electromyography signals during isometric isotonic and isometric anisotonic contraction","authors":"G. Luu, P. Ravier, O. Buttelli","doi":"10.1109/ATC.2015.7388307","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388307","url":null,"abstract":"The aim of this study is to validate the time delay estimators recently developed by our group. We test the estimators with the real data in both case isometric isotonic and isometric anisotonic contraction in order to take into account the stationarity and the non-stationarity of the data. The results indicate that these estimators have coherent behaviors with the law of Henneman up to 60% Maximal Voluntary Contraction(MVC) in both cases.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143016","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388365
Ha L. Vu, Hai Viet Tran, Lam D. Tran, Minh Hong Phan
This article proposes a reconfiguration solution for CMOS frequency synthesizer with a hybrid architecture which is a combination of a Direct Digital Synthesizer (DDS) and a Phase Locked Loop (PLL). The DDS is implemented in FPGA platform functioning a reference frequency to the PLL. The PLL is designed using CMOS technology, being reconfigurable to accelerate tuning speed. Instead of employing a hardware-based lock detector, a software algorithm is used to determine the switching time and to optimize the frequency tuning speed, consuming energy or limited pick power. This PLL is used in cognitive radio for spectrum sensing function.
{"title":"A reconfiguration solution for CMOS frequency synthesizers in cognitive radios","authors":"Ha L. Vu, Hai Viet Tran, Lam D. Tran, Minh Hong Phan","doi":"10.1109/ATC.2015.7388365","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388365","url":null,"abstract":"This article proposes a reconfiguration solution for CMOS frequency synthesizer with a hybrid architecture which is a combination of a Direct Digital Synthesizer (DDS) and a Phase Locked Loop (PLL). The DDS is implemented in FPGA platform functioning a reference frequency to the PLL. The PLL is designed using CMOS technology, being reconfigurable to accelerate tuning speed. Instead of employing a hardware-based lock detector, a software algorithm is used to determine the switching time and to optimize the frequency tuning speed, consuming energy or limited pick power. This PLL is used in cognitive radio for spectrum sensing function.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126435521","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 : 2015-10-01DOI: 10.1109/ATC.2015.7388376
Nhat Nguyen, Kien N. Huynh, N. N. Vo, T. V. Pham
Fish Detection and Tracking is an important step in studying oceanography, especially for forecasting changes in the quality of water and the increasing or decreasing number of fish in a population. In this paper, combination of Gaussian Mixture Model and Frame-Differencing algorithm (CGMMFD) is proposed to improve tracking performance in different scenarios. Also, four other techniques, namely Mean Background, Gaussian Mixture Model, Mean Shift Tracking and Particle Filter are also investigated. In this study, we use the self-built database with some typical tracking situations such as appearance of illusions, different swimming velocities of the fish and qualities of water. Mean square error and Variance are used to assess the performance of each technique for different scenarios. The experimental results indicate that our proposed algorithm gives higher tracking accuracy. While other techniques have difficulties to track the fish location or the fish centroid in some certain scenarios, the proposed algorithm can perform well in different situations.
{"title":"Fish detection and movement tracking","authors":"Nhat Nguyen, Kien N. Huynh, N. N. Vo, T. V. Pham","doi":"10.1109/ATC.2015.7388376","DOIUrl":"https://doi.org/10.1109/ATC.2015.7388376","url":null,"abstract":"Fish Detection and Tracking is an important step in studying oceanography, especially for forecasting changes in the quality of water and the increasing or decreasing number of fish in a population. In this paper, combination of Gaussian Mixture Model and Frame-Differencing algorithm (CGMMFD) is proposed to improve tracking performance in different scenarios. Also, four other techniques, namely Mean Background, Gaussian Mixture Model, Mean Shift Tracking and Particle Filter are also investigated. In this study, we use the self-built database with some typical tracking situations such as appearance of illusions, different swimming velocities of the fish and qualities of water. Mean square error and Variance are used to assess the performance of each technique for different scenarios. The experimental results indicate that our proposed algorithm gives higher tracking accuracy. While other techniques have difficulties to track the fish location or the fish centroid in some certain scenarios, the proposed algorithm can perform well in different situations.","PeriodicalId":142783,"journal":{"name":"2015 International Conference on Advanced Technologies for Communications (ATC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128884785","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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