Pub Date : 2006-10-16DOI: 10.1109/ISDA.2006.253874
Zhiying Lu, Yufeng Yang
Hailstone is one of the main meteorological disasters and it is very difficult to be forecasted effectively. A system of automatic recognition hail cloud is built base on the reflectivity image in this paper. The system deals the inputting image with the cut-down, filter, dilation and erosion process, and then the cloud is extracted from the image. A new concept called reflectivity density, which is used to distinguish hail cloud from rainstorm cloud, is defined. When recognized hailstone cloud the system will find the hailstone landing position by using Hough transform to detect hook echo or detecting the pixel with a reflectivity over 60 dBZ. This system is built on the Windows platform, and the experimental results validate the availability of the algorithm
{"title":"A Study of Hailstone Detection System Based on Radar Echo Reflectivity Image","authors":"Zhiying Lu, Yufeng Yang","doi":"10.1109/ISDA.2006.253874","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253874","url":null,"abstract":"Hailstone is one of the main meteorological disasters and it is very difficult to be forecasted effectively. A system of automatic recognition hail cloud is built base on the reflectivity image in this paper. The system deals the inputting image with the cut-down, filter, dilation and erosion process, and then the cloud is extracted from the image. A new concept called reflectivity density, which is used to distinguish hail cloud from rainstorm cloud, is defined. When recognized hailstone cloud the system will find the hailstone landing position by using Hough transform to detect hook echo or detecting the pixel with a reflectivity over 60 dBZ. This system is built on the Windows platform, and the experimental results validate the availability of the algorithm","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122673469","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}
The article deals with value-at-risk (VaR), by using method, which does not require defining distribution of return of the financial instrument. We used Cornish-Fisher expansion, which allows evaluating the quintiles and VaR of the explored return distribution only by knowing its characteristics of skewness and kurtosis. This method allows achieving sufficient accuracy of VaR even from relatively small amount of experimental data of return. The empirical evaluation of VaR, by applying Cornish-Fisher expansion, is performed by using hourly trading data of EUR/USD long position
{"title":"Evaluation of Value-at-Risk for short term investment by using Cornish-Fisher expansion","authors":"V. Sakalauskas, D. Kriksciuniene","doi":"10.1109/ISDA.2006.142","DOIUrl":"https://doi.org/10.1109/ISDA.2006.142","url":null,"abstract":"The article deals with value-at-risk (VaR), by using method, which does not require defining distribution of return of the financial instrument. We used Cornish-Fisher expansion, which allows evaluating the quintiles and VaR of the explored return distribution only by knowing its characteristics of skewness and kurtosis. This method allows achieving sufficient accuracy of VaR even from relatively small amount of experimental data of return. The empirical evaluation of VaR, by applying Cornish-Fisher expansion, is performed by using hourly trading data of EUR/USD long position","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133573931","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 : 2006-10-16DOI: 10.1109/ISDA.2006.253907
Xiaogang Liu, C. Xie
Vision-based seam tracking without auxiliary light is a popular topic concerning the intelligent welding robot. The Gordian Knot of the issue is image processing with much time spending in the welding course. First, according to the principle of paraboloid of revolution reflecting, this paper puts forward laying a paraboloidal mirror in specifically position above the tip of welding wire. A part of arc light is changed into parallel one by the mirror. The reflected light shines on the area where the CCD camera can see. So the visual seam is seen long and the arc light jamming is weakened in the CCD camera. Secondly, it will be discussed that the luminous flux of the area is assured. Then the Roberts algorithm for the processing image will be discussed in the aspect of the positiveness and negativeness of the gradient element, a rule that judged seam was brought forward. The rule increases the speed of seam tracking. A welding robot system with single camera fixed on the weld torch end-effector has been established for the robot to identify the welded seam by the reflected light. The simulation and results of real application have proved the validity of the method
{"title":"Robotic Seam Tracking by Utilizing Arc Light","authors":"Xiaogang Liu, C. Xie","doi":"10.1109/ISDA.2006.253907","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253907","url":null,"abstract":"Vision-based seam tracking without auxiliary light is a popular topic concerning the intelligent welding robot. The Gordian Knot of the issue is image processing with much time spending in the welding course. First, according to the principle of paraboloid of revolution reflecting, this paper puts forward laying a paraboloidal mirror in specifically position above the tip of welding wire. A part of arc light is changed into parallel one by the mirror. The reflected light shines on the area where the CCD camera can see. So the visual seam is seen long and the arc light jamming is weakened in the CCD camera. Secondly, it will be discussed that the luminous flux of the area is assured. Then the Roberts algorithm for the processing image will be discussed in the aspect of the positiveness and negativeness of the gradient element, a rule that judged seam was brought forward. The rule increases the speed of seam tracking. A welding robot system with single camera fixed on the weld torch end-effector has been established for the robot to identify the welded seam by the reflected light. The simulation and results of real application have proved the validity of the method","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127576410","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 : 2006-10-16DOI: 10.1109/ISDA.2006.253897
Zhenxiang Chen, Haiyang Wang, Lizhi Peng, Bo Yang, Yuehui Chen
It is estimated that 70 percent or more of broadband bandwidth is consumed by transporting music, games, video, and other content through P2P clients. In order to identify, and manage of P2P traffic, some port, payload and connection features based methods were proposed. But most of them focus on identifying P2P traffic based on rules and most of them can't identify P2P traffic with new features. None of the proposed methods can effectively help controlling and managing the P2P hosts. In this paper, we created a new P2P feature set, which include most of the proposed and new P2P features proposed by us. And a new anormaly detection method based on the feature set and flexible neural tree (FNT) is applied to detect P2P hosts. This approach is the first intelligent P2P hosts detection method. Experimental results show that the new method proposed by this paper has high detection performance and good expansion ability to add new P2P features. It can be easily applied to an on-line environment in our future planed work
{"title":"A Novel Method of P2P Hosts Detection Based on Flexible Neural Tree","authors":"Zhenxiang Chen, Haiyang Wang, Lizhi Peng, Bo Yang, Yuehui Chen","doi":"10.1109/ISDA.2006.253897","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253897","url":null,"abstract":"It is estimated that 70 percent or more of broadband bandwidth is consumed by transporting music, games, video, and other content through P2P clients. In order to identify, and manage of P2P traffic, some port, payload and connection features based methods were proposed. But most of them focus on identifying P2P traffic based on rules and most of them can't identify P2P traffic with new features. None of the proposed methods can effectively help controlling and managing the P2P hosts. In this paper, we created a new P2P feature set, which include most of the proposed and new P2P features proposed by us. And a new anormaly detection method based on the feature set and flexible neural tree (FNT) is applied to detect P2P hosts. This approach is the first intelligent P2P hosts detection method. Experimental results show that the new method proposed by this paper has high detection performance and good expansion ability to add new P2P features. It can be easily applied to an on-line environment in our future planed work","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132732051","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}
Variation of the system parameters and external disturbances always happen in the CNC servo system. With a traditional PID controller, it will cause large overshoot or poor stability. In this paper, a fuzzy-PID controller is proposed in order to improve the performance of the servo system. The proposed controller incorporates the advantages of PID control which can eliminate the steady-state error, and the advantages of fuzzy logic such as simple design, no need of an accurate mathematical model and some adaptability to nonlinearity and time-variation. The fuzzy-PID controller accepts the error (e) and error change(ec) as inputs ,while the parameters kp, ki, kd as outputs. Control rules of the controller are established based on experience so that self-regulation of the values of PID parameters is achieved. A simulation model of position servo system is constructed in Matlab/Simulink module based on a high-speed milling machine researched in our institute. By comparing the traditional PID controller and the fuzzy-PID controller, the simulation results show that the system has stronger robustness and disturbance rejection capability with the latter controller which can meet the performance requirements of the CNC position servo system better
在数控伺服系统中，系统参数的变化和外部干扰是不可避免的。传统的PID控制器会造成超调量大或稳定性差。为了提高伺服系统的性能，本文提出了一种模糊pid控制器。该控制器结合了PID控制能消除稳态误差的优点和模糊逻辑控制设计简单、不需要精确的数学模型、对非线性和时变具有一定的适应性等优点。模糊pid控制器接受误差(e)和误差变化(ec)作为输入，参数kp, ki, kd作为输出。根据经验建立控制器的控制规则，实现PID参数值的自整定。以我所研制的高速铣床为例，利用Matlab/Simulink模块建立了位置伺服系统的仿真模型。通过对比传统PID控制器和模糊PID控制器，仿真结果表明，模糊PID控制器比传统PID控制器具有更强的鲁棒性和抗干扰能力，能更好地满足数控位置伺服系统的性能要求
{"title":"Simulation on a Fuzzy-PID Position Controller of the CNC Servo System","authors":"Xiaodiao Huang, Liting Shi","doi":"10.1109/ISDA.2006.237","DOIUrl":"https://doi.org/10.1109/ISDA.2006.237","url":null,"abstract":"Variation of the system parameters and external disturbances always happen in the CNC servo system. With a traditional PID controller, it will cause large overshoot or poor stability. In this paper, a fuzzy-PID controller is proposed in order to improve the performance of the servo system. The proposed controller incorporates the advantages of PID control which can eliminate the steady-state error, and the advantages of fuzzy logic such as simple design, no need of an accurate mathematical model and some adaptability to nonlinearity and time-variation. The fuzzy-PID controller accepts the error (e) and error change(ec) as inputs ,while the parameters kp, ki, kd as outputs. Control rules of the controller are established based on experience so that self-regulation of the values of PID parameters is achieved. A simulation model of position servo system is constructed in Matlab/Simulink module based on a high-speed milling machine researched in our institute. By comparing the traditional PID controller and the fuzzy-PID controller, the simulation results show that the system has stronger robustness and disturbance rejection capability with the latter controller which can meet the performance requirements of the CNC position servo system better","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133198881","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}
This paper presents a modified data envelopment analysis (DEA) model to address ABC inventory classification. The new model is derived from reduced DEA model, and some restricts are added to make classification results more reasonable. The evaluating process has two steps. Firstly, all criteria data for each item are normalized between [0, 1]. Then, the prior scores for all inventory items are computed using the proposed model. A simulation example is employed to verify the efficiency of the model. The results show that this model is an effective ABC classification tool and the prior score of each item make classification credible. Furthermore, the classification result is compared with that of traditional analytic hierarchy process (AHP) methodology
{"title":"Classifying ABC Inventory with Multicriteria Using a Data Envelopment Analysis Approach","authors":"Qing Liu, Dao Huang","doi":"10.1109/ISDA.2006.122","DOIUrl":"https://doi.org/10.1109/ISDA.2006.122","url":null,"abstract":"This paper presents a modified data envelopment analysis (DEA) model to address ABC inventory classification. The new model is derived from reduced DEA model, and some restricts are added to make classification results more reasonable. The evaluating process has two steps. Firstly, all criteria data for each item are normalized between [0, 1]. Then, the prior scores for all inventory items are computed using the proposed model. A simulation example is employed to verify the efficiency of the model. The results show that this model is an effective ABC classification tool and the prior score of each item make classification credible. Furthermore, the classification result is compared with that of traditional analytic hierarchy process (AHP) methodology","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130342255","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 : 2006-10-16DOI: 10.1109/ISDA.2006.253745
Tan Ying, Ya-Ping Yang, J. Zeng
Particle swarm optimization (PSO) is swarm-based stochastic optimization originating from artificial life and evolutionary computation. The algorithm completes the optimization through following the personal best solution of each particle and the global best value of the whole swarm. This paper improved the standard PSO's evolution equation on the foundation of analyzing standard PSO's model and its mechanisms, then presents a quadratic PSO and gives a strategy of self-adapting quadratic PSO parameters through comparing quadratic PSO with PSO and analyzing the impact that the parameters have on the performance of algorithm. Further, this paper presents a hybrid particle optimization combined their advantages on the basis of comparing quadratic PSO with PSO. The simulation illustrates the quadratic PSO improves the performance of the PSO and the self-adapting parameters strategy is better than the fixed parameters, and the hybrid PSO outperformed both standard PSO and quadratic PSO, the experimental results show that the methods are correct and efficient
{"title":"An Enhanced Hybrid Quadratic Particle Swarm Optimization","authors":"Tan Ying, Ya-Ping Yang, J. Zeng","doi":"10.1109/ISDA.2006.253745","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253745","url":null,"abstract":"Particle swarm optimization (PSO) is swarm-based stochastic optimization originating from artificial life and evolutionary computation. The algorithm completes the optimization through following the personal best solution of each particle and the global best value of the whole swarm. This paper improved the standard PSO's evolution equation on the foundation of analyzing standard PSO's model and its mechanisms, then presents a quadratic PSO and gives a strategy of self-adapting quadratic PSO parameters through comparing quadratic PSO with PSO and analyzing the impact that the parameters have on the performance of algorithm. Further, this paper presents a hybrid particle optimization combined their advantages on the basis of comparing quadratic PSO with PSO. The simulation illustrates the quadratic PSO improves the performance of the PSO and the self-adapting parameters strategy is better than the fixed parameters, and the hybrid PSO outperformed both standard PSO and quadratic PSO, the experimental results show that the methods are correct and efficient","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124301819","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 : 2006-10-16DOI: 10.1109/ISDA.2006.253739
W. Dangelmaier, B. Klöpper, Jens Wienstroer, T. Timm
Real world problems, e.g. from transport domain, are typically non-deterministic and uncertain. Although many approaches, especially form the area of operations research assume constant parameters like ride duration or availability of connections in networks, these parameters depend on a large number of influences and are not constant. The paradigm of Bayesian thinking teaches us, that we can use partial knowledge of the influences to derive better estimations of these variables. In this paper, we introduce a multiagent system (MAS) that implements a distributed hybrid Bayesian network and is able to create a dynamic probabilistic model of the shortest path problem, in order to create better estimation and thereby better plans
{"title":"The Shortest Path Problem in Uncertain Domains -- an Agent based Approach with Bayesian Networks","authors":"W. Dangelmaier, B. Klöpper, Jens Wienstroer, T. Timm","doi":"10.1109/ISDA.2006.253739","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253739","url":null,"abstract":"Real world problems, e.g. from transport domain, are typically non-deterministic and uncertain. Although many approaches, especially form the area of operations research assume constant parameters like ride duration or availability of connections in networks, these parameters depend on a large number of influences and are not constant. The paradigm of Bayesian thinking teaches us, that we can use partial knowledge of the influences to derive better estimations of these variables. In this paper, we introduce a multiagent system (MAS) that implements a distributed hybrid Bayesian network and is able to create a dynamic probabilistic model of the shortest path problem, in order to create better estimation and thereby better plans","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125096462","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}
Data fusion is an effective tool to improve the localization precision of a mobile robot. This paper presents a new algorithm to improve the precision of robot localization by fusing data from three kinds of sensors: encoders, a gyroscope and a camera. In the data fusion process, the camera is used as a visual protractor, which is a simple and robust way to process vision information but plays an important role in reducing the errors of localization in high slip-rate cases. An experiment of mobile robot localization is designed to test the efficiency of the algorithm. In this experiment, the localization precision of robots can be improved almost 400% when visual protractor is introduced
{"title":"Visual Protractor Based Localization Algorithm for Mobile Robot","authors":"Wei Chen, Xuening Wang, Tao Wu, Xin Xu","doi":"10.1109/ISDA.2006.53","DOIUrl":"https://doi.org/10.1109/ISDA.2006.53","url":null,"abstract":"Data fusion is an effective tool to improve the localization precision of a mobile robot. This paper presents a new algorithm to improve the precision of robot localization by fusing data from three kinds of sensors: encoders, a gyroscope and a camera. In the data fusion process, the camera is used as a visual protractor, which is a simple and robust way to process vision information but plays an important role in reducing the errors of localization in high slip-rate cases. An experiment of mobile robot localization is designed to test the efficiency of the algorithm. In this experiment, the localization precision of robots can be improved almost 400% when visual protractor is introduced","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131729705","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 : 2006-10-16DOI: 10.1109/ISDA.2006.253767
Jian Cui, G. Qi
Product lifecycle management (PLM) is a uniform and integrated platform to support company operation. The integration of product data, the process and application are studied efficiently in this paper. Through constructing PDM platform, the nodes of BOM are applied to reengineer, restructure and extend, which forms the new structure-tree of data so as to realize the data-shared for the design, manufacture, sale, maintenance till callback throughout the whole PLM. On the basis of process integration, the paper adopts WBS to build the process modeling of system function, technology, action, organizing and resource aspects, and then complete the dynamic process management of interrelated systems. Finally, the uniform applied interface is presented to realize the integration of applied system between CAD, CAPP, ERP and PLM
{"title":"Research on Integration Technology for Product Lifecycle Management System","authors":"Jian Cui, G. Qi","doi":"10.1109/ISDA.2006.253767","DOIUrl":"https://doi.org/10.1109/ISDA.2006.253767","url":null,"abstract":"Product lifecycle management (PLM) is a uniform and integrated platform to support company operation. The integration of product data, the process and application are studied efficiently in this paper. Through constructing PDM platform, the nodes of BOM are applied to reengineer, restructure and extend, which forms the new structure-tree of data so as to realize the data-shared for the design, manufacture, sale, maintenance till callback throughout the whole PLM. On the basis of process integration, the paper adopts WBS to build the process modeling of system function, technology, action, organizing and resource aspects, and then complete the dynamic process management of interrelated systems. Finally, the uniform applied interface is presented to realize the integration of applied system between CAD, CAPP, ERP and PLM","PeriodicalId":116729,"journal":{"name":"Sixth International Conference on Intelligent Systems Design and Applications","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134365511","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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