Pub Date : 2015-12-01DOI: 10.1109/ISMA.2015.7373481
Wasim M. F. Al-Masri, M. Abdel-Hafez, A. El-Hag
We present a new method to accurately locate partial discharge by using a sequential fault detection and identification (FDI) algorithm for detecting a bias fault in the measurements of partial discharge in transformer insulation system using acoustic signals. In this paper, a novel technique is proposed to identify the possibility of measurement errors generated from acoustic emission sensors during partial discharge localization inside a transformer tank. The technique probabilistically detects and identifies possible bias on the sensors' measurement. This bias is possibly caused by sensor's fault, sensor's aging, or proximity of the PD to a certain sensor in comparison to other sensors. Correct detection of sensors' measurement bias enables high accuracy PD localization as will be demonstrated in this paper. The accuracy and convergence characteristics of the proposed algorithm are verified in a simulation environment. This study is tremendously important for scheduling and starting maintenance/repair actions cost and time efficiently or to perform a risk analysis.
{"title":"A multi-hypothesis sequential probability test for partial discharges localization in power transformers","authors":"Wasim M. F. Al-Masri, M. Abdel-Hafez, A. El-Hag","doi":"10.1109/ISMA.2015.7373481","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373481","url":null,"abstract":"We present a new method to accurately locate partial discharge by using a sequential fault detection and identification (FDI) algorithm for detecting a bias fault in the measurements of partial discharge in transformer insulation system using acoustic signals. In this paper, a novel technique is proposed to identify the possibility of measurement errors generated from acoustic emission sensors during partial discharge localization inside a transformer tank. The technique probabilistically detects and identifies possible bias on the sensors' measurement. This bias is possibly caused by sensor's fault, sensor's aging, or proximity of the PD to a certain sensor in comparison to other sensors. Correct detection of sensors' measurement bias enables high accuracy PD localization as will be demonstrated in this paper. The accuracy and convergence characteristics of the proposed algorithm are verified in a simulation environment. This study is tremendously important for scheduling and starting maintenance/repair actions cost and time efficiently or to perform a risk analysis.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126747649","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373494
A. Rocha, Ricardo Silva Peres, Luís Flores, J. Barata
The manufacturing industry has been steadily evolving over the years, with new market trends encouraging manufacturers to find new ways to meet the consumers' demands and quickly adapt to new business opportunities. Manufacturing systems are therefore required to be more and more agile and flexible in an environment dominated by unpredictable changes and disturbances. As a direct consequence several new solutions have been proposed, revolving around agility, flexibility, reconfigurability and modularity, enabling concepts such as Plug & Produce (P&P). Following this trend, the present article proposes a possible implementation for a multiagent-based knowledge extraction architecture to support P&P in flexible, distributed manufacturing monitoring systems. The validation process is also described, entailing the application of said system in a real industrial environment, more specifically monitoring two robotic cells performing the welding of a car's side member.
{"title":"A multiagent based knowledge extraction framework to support plug and produce capabilities in manufacturing monitoring systems","authors":"A. Rocha, Ricardo Silva Peres, Luís Flores, J. Barata","doi":"10.1109/ISMA.2015.7373494","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373494","url":null,"abstract":"The manufacturing industry has been steadily evolving over the years, with new market trends encouraging manufacturers to find new ways to meet the consumers' demands and quickly adapt to new business opportunities. Manufacturing systems are therefore required to be more and more agile and flexible in an environment dominated by unpredictable changes and disturbances. As a direct consequence several new solutions have been proposed, revolving around agility, flexibility, reconfigurability and modularity, enabling concepts such as Plug & Produce (P&P). Following this trend, the present article proposes a possible implementation for a multiagent-based knowledge extraction architecture to support P&P in flexible, distributed manufacturing monitoring systems. The validation process is also described, entailing the application of said system in a real industrial environment, more specifically monitoring two robotic cells performing the welding of a car's side member.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121186622","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373488
Hamzeh Alzu'bi, O. A. Akinsanya, Nevrus Kaja, Iyad Mansour, O. Rawashdeh
This paper presents a preliminary feasibility study of using aerial, fixed-pitch propellers, underwater. Tests were performs in both air and in water using a test stand that was designed to study the efficiency of commercially available, counter-rotating, multirotor propellers. Experimental results showed that the propellers can operate ably underwater in terms of thrust to power ratio at low rotational speeds without significant cavitation. These results are currently being used to develop a novel Unmanned Aerial Vehicle (UAV) quadcopter that can fly in air and maneuver underwater. The use of only a single set of aerial rotors and motors for use in both air and underwater greatly reduces cost, weight, and complexity compared to other Aquatic Aerial-Underwater Vehicle concepts.
{"title":"Evaluation of an aerial quadcopter power-plant for underwater operation","authors":"Hamzeh Alzu'bi, O. A. Akinsanya, Nevrus Kaja, Iyad Mansour, O. Rawashdeh","doi":"10.1109/ISMA.2015.7373488","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373488","url":null,"abstract":"This paper presents a preliminary feasibility study of using aerial, fixed-pitch propellers, underwater. Tests were performs in both air and in water using a test stand that was designed to study the efficiency of commercially available, counter-rotating, multirotor propellers. Experimental results showed that the propellers can operate ably underwater in terms of thrust to power ratio at low rotational speeds without significant cavitation. These results are currently being used to develop a novel Unmanned Aerial Vehicle (UAV) quadcopter that can fly in air and maneuver underwater. The use of only a single set of aerial rotors and motors for use in both air and underwater greatly reduces cost, weight, and complexity compared to other Aquatic Aerial-Underwater Vehicle concepts.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128143649","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373458
A. Nasiri, S. Nguang, A. Swain
This paper proposes a new method of robust fault estimation (FE) for a class of nonlinear systems represented by polynomial fuzzy models. Existing results on these systems essentially focus on fault detection and isolation (FDI) approach. The sufficient conditions for designing gains of the estimator are established via Lyapunov theory, which are formulated in terms of polynomial matrix inequalities (PLMIs). These PLMIs are solved using sum of squares (SOS) approach and estimator gains are calculated using SOSTOOLS toolbox in Matlab. The effectiveness of the proposed approach has been illustrated considering a numerical example and has been found to be satisfactory.
{"title":"Robust fault estimation of nonlinear systems using SOS approach","authors":"A. Nasiri, S. Nguang, A. Swain","doi":"10.1109/ISMA.2015.7373458","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373458","url":null,"abstract":"This paper proposes a new method of robust fault estimation (FE) for a class of nonlinear systems represented by polynomial fuzzy models. Existing results on these systems essentially focus on fault detection and isolation (FDI) approach. The sufficient conditions for designing gains of the estimator are established via Lyapunov theory, which are formulated in terms of polynomial matrix inequalities (PLMIs). These PLMIs are solved using sum of squares (SOS) approach and estimator gains are calculated using SOSTOOLS toolbox in Matlab. The effectiveness of the proposed approach has been illustrated considering a numerical example and has been found to be satisfactory.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115785832","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373479
M. Jaradat, Mohammad Tauseef, Yousuf Altaf, Roba Saab, Hussam Adel, Nadeem Yousuf, Y. Zurigat
Dust and dirt particles accumulating on PV panels decrease the solar energy reaching the cells, thereby reducing their overall power output. Hence, cleaning the PV panels is a problem of great practical engineering interest in solar PV power generation. In this paper, the problem is reviewed and methods for dust removal are discussed. A portable robotic cleaning device is developed and features a versatile platform which travels the entire length of a panel. An Arduino microcontroller is used to implement the robot's control system. Initial testing of the robot has provided favorable results and shows that such a system is viable. Future improvements on the design are discussed, especially the different methods of transporting the robot from one panel to another. In conclusion, it is found that robotic cleaning solution is practical and can help in maintaining the clean PV panel efficiency.
{"title":"A fully portable robot system for cleaning solar panels","authors":"M. Jaradat, Mohammad Tauseef, Yousuf Altaf, Roba Saab, Hussam Adel, Nadeem Yousuf, Y. Zurigat","doi":"10.1109/ISMA.2015.7373479","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373479","url":null,"abstract":"Dust and dirt particles accumulating on PV panels decrease the solar energy reaching the cells, thereby reducing their overall power output. Hence, cleaning the PV panels is a problem of great practical engineering interest in solar PV power generation. In this paper, the problem is reviewed and methods for dust removal are discussed. A portable robotic cleaning device is developed and features a versatile platform which travels the entire length of a panel. An Arduino microcontroller is used to implement the robot's control system. Initial testing of the robot has provided favorable results and shows that such a system is viable. Future improvements on the design are discussed, especially the different methods of transporting the robot from one panel to another. In conclusion, it is found that robotic cleaning solution is practical and can help in maintaining the clean PV panel efficiency.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133682779","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373473
R. Fareh, T. Rabie
This paper presents a tracking trajectory for nonholonomic mobile manipulator using distributed control strategy. First, the dynamical model of the mobile manipulator is viewed as an interconnection of two subsystems: the mobile platform subsystem and the manipulator subsystem. For the mobile platform subsystem, a novel kinematic controller is developed to obtain a desired velocity. For the manipulator subsystem, the distributed control strategy is used to track a desired trajectory in the joint space and workspace. The inverse kinematics is used to obtain the desired trajectory from the workspace. The distributed control strategy consists of controlling the manipulator starting from the last joint and going backward until the first joint. Lyapunov's approach is used to prove the stability of the system. A three degrees of freedom mobile manipulator is used for the validation of this control strategy. The experimental results show improved tracking which demonstrates the effectiveness of this control strategy.
{"title":"Tracking trajectory for nonholonomic mobile manipulator using distributed control strategy","authors":"R. Fareh, T. Rabie","doi":"10.1109/ISMA.2015.7373473","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373473","url":null,"abstract":"This paper presents a tracking trajectory for nonholonomic mobile manipulator using distributed control strategy. First, the dynamical model of the mobile manipulator is viewed as an interconnection of two subsystems: the mobile platform subsystem and the manipulator subsystem. For the mobile platform subsystem, a novel kinematic controller is developed to obtain a desired velocity. For the manipulator subsystem, the distributed control strategy is used to track a desired trajectory in the joint space and workspace. The inverse kinematics is used to obtain the desired trajectory from the workspace. The distributed control strategy consists of controlling the manipulator starting from the last joint and going backward until the first joint. Lyapunov's approach is used to prove the stability of the system. A three degrees of freedom mobile manipulator is used for the validation of this control strategy. The experimental results show improved tracking which demonstrates the effectiveness of this control strategy.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117342644","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373456
I. Al-Naimi, C. Wong, P. Moore, X. Chen
Significant research efforts have been directed toward human identification and tracking approaches as an infrastructure for supporting innovative smart home services. Even though various approaches have been proposed to tackle this problem, solutions still remain elusive due to various reasons. The aim of this paper is to develop and implement an advanced approach to detect and identify persons within opportune and calm smart home environment. A novel multimodal approach is proposed for non-tagged human identification and tracking. Smart floor and pyroelectric infrared sensors are combined through unique integration strategy to extract explicit information indicating a person's body surface area. This information significantly improved the identification accuracy. Data processing in the proposed approach has divided into different stages including: pattern segmentation and generation, features extraction, feature fusion, and pattern classification. Test cases were designed and carried out to test and evaluate the feasibility and effectiveness of the proposed approach.
{"title":"Indoor identification and tracking using advanced multimodal approach","authors":"I. Al-Naimi, C. Wong, P. Moore, X. Chen","doi":"10.1109/ISMA.2015.7373456","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373456","url":null,"abstract":"Significant research efforts have been directed toward human identification and tracking approaches as an infrastructure for supporting innovative smart home services. Even though various approaches have been proposed to tackle this problem, solutions still remain elusive due to various reasons. The aim of this paper is to develop and implement an advanced approach to detect and identify persons within opportune and calm smart home environment. A novel multimodal approach is proposed for non-tagged human identification and tracking. Smart floor and pyroelectric infrared sensors are combined through unique integration strategy to extract explicit information indicating a person's body surface area. This information significantly improved the identification accuracy. Data processing in the proposed approach has divided into different stages including: pattern segmentation and generation, features extraction, feature fusion, and pattern classification. Test cases were designed and carried out to test and evaluate the feasibility and effectiveness of the proposed approach.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126574887","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373460
Serein Al-Ratrout, A. Saleem, H. Soliman
This paper presents a comparative study on the optimization methods in fractional PID controller design for induction motor. Choosing the best optimization algorithm for tuning fractional order controllers is crucial in order obtain best system response. In this study genetic algorithm, local search, nonlinear sequential quadratic programming, and particle swarm optimization algorithms are used to tune a fractional PI controller for induction motors. A model of a real motor is used to design and test the controllers. The resulted fractional controllers are approximated using refined Oustaloup's recursive filter in order to be implemented using digital controllers. The controllers' speed tracking performance is tested in simulation and a comparative analysis has been conducted.
{"title":"Optimization methods in fractional order control of electric drives: A comparative study","authors":"Serein Al-Ratrout, A. Saleem, H. Soliman","doi":"10.1109/ISMA.2015.7373460","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373460","url":null,"abstract":"This paper presents a comparative study on the optimization methods in fractional PID controller design for induction motor. Choosing the best optimization algorithm for tuning fractional order controllers is crucial in order obtain best system response. In this study genetic algorithm, local search, nonlinear sequential quadratic programming, and particle swarm optimization algorithms are used to tune a fractional PI controller for induction motors. A model of a real motor is used to design and test the controllers. The resulted fractional controllers are approximated using refined Oustaloup's recursive filter in order to be implemented using digital controllers. The controllers' speed tracking performance is tested in simulation and a comparative analysis has been conducted.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116115499","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373457
A. Nasiri, S. Nguang, A. Swain
This paper addresses the problem of robust fuzzy dynamic output feedback control of a nonlinear discrete time system described by a Takagi -Sugeno fuzzy model. It is assumed that the system is subjected to actuator fault. First, the closed-loop faulty dynamic model of the system and the fuzzy dynamic output feedback controller are introduced. Then, the stability conditions are established via Lyapunov theory, which are formulated in terms of linear matrix inequalities to solve the problem. Finally, a numerical example is presented to illustrate the effectiveness of the proposed controllers.
{"title":"Fault tolerant H™ fuzzy-dynamic output feedback control of nonlinear systems with actuator faults: An LMI approach","authors":"A. Nasiri, S. Nguang, A. Swain","doi":"10.1109/ISMA.2015.7373457","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373457","url":null,"abstract":"This paper addresses the problem of robust fuzzy dynamic output feedback control of a nonlinear discrete time system described by a Takagi -Sugeno fuzzy model. It is assumed that the system is subjected to actuator fault. First, the closed-loop faulty dynamic model of the system and the fuzzy dynamic output feedback controller are introduced. Then, the stability conditions are established via Lyapunov theory, which are formulated in terms of linear matrix inequalities to solve the problem. Finally, a numerical example is presented to illustrate the effectiveness of the proposed controllers.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130200518","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 : 2015-12-01DOI: 10.1109/ISMA.2015.7373461
S. Pervaiz, I. Deiab, A. Rashid, M. Nicolescu
The finite element based machining simulations have been used widely in industry and academia to analyze the machining process. These virtual machining simulations have advantages over the real machining experiments due to the immense potential of saving time and expenses. The simulation techniques are even more popular when machining difficult to cut materials such as titanium alloy (Ti6Al4V). In order to make machining process sustainable in nature, energy consumption during the cutting process should be optimized accordingly. The present study aims to provide an insight towards the relation of cutting energy with respect to the different cutting tool geometries. The study used finite element based simulations to investigate the effect of rake angle on the cutting energy. Based on the cutting energy outcomes different suggestions were made to minimize the cutting energy.
{"title":"Influence of rake angle on the cutting energy when modeling the machining of Ti6Al4V","authors":"S. Pervaiz, I. Deiab, A. Rashid, M. Nicolescu","doi":"10.1109/ISMA.2015.7373461","DOIUrl":"https://doi.org/10.1109/ISMA.2015.7373461","url":null,"abstract":"The finite element based machining simulations have been used widely in industry and academia to analyze the machining process. These virtual machining simulations have advantages over the real machining experiments due to the immense potential of saving time and expenses. The simulation techniques are even more popular when machining difficult to cut materials such as titanium alloy (Ti6Al4V). In order to make machining process sustainable in nature, energy consumption during the cutting process should be optimized accordingly. The present study aims to provide an insight towards the relation of cutting energy with respect to the different cutting tool geometries. The study used finite element based simulations to investigate the effect of rake angle on the cutting energy. Based on the cutting energy outcomes different suggestions were made to minimize the cutting energy.","PeriodicalId":222454,"journal":{"name":"2015 10th International Symposium on Mechatronics and its Applications (ISMA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114905394","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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