Pub Date : 2013-08-01DOI: 10.1109/MIC.2013.6757975
Peng Jia, Jinhu Zhou, Yanqin Zhang, Xunjun He
Metamaterials have received extensive attention in recent years due to their exotic electromagnetic properties. Here, we investigate an artificial Kerr-medium based on microwave metamaterial for phase modulator application, which can offer a strong engineered anisotropic response. Moreover, the artificial Kerr-medium can be tuned by changing the capacitance loaded at the split gap of metamaterial unit cell, instead of directly applying E-field inside the medium. The unit cell of metamaterial is similar to Kerr cell. The proposed structure doesn't require high driving voltage and easily realizes Kerr effect, comparing to the natural Kerr crystals. Therefore, our structure fabricates and tests simply due to working at GHz frequency.
{"title":"Artificial Kerr-type medium using microwave metamaterials for phase modulator","authors":"Peng Jia, Jinhu Zhou, Yanqin Zhang, Xunjun He","doi":"10.1109/MIC.2013.6757975","DOIUrl":"https://doi.org/10.1109/MIC.2013.6757975","url":null,"abstract":"Metamaterials have received extensive attention in recent years due to their exotic electromagnetic properties. Here, we investigate an artificial Kerr-medium based on microwave metamaterial for phase modulator application, which can offer a strong engineered anisotropic response. Moreover, the artificial Kerr-medium can be tuned by changing the capacitance loaded at the split gap of metamaterial unit cell, instead of directly applying E-field inside the medium. The unit cell of metamaterial is similar to Kerr cell. The proposed structure doesn't require high driving voltage and easily realizes Kerr effect, comparing to the natural Kerr crystals. Therefore, our structure fabricates and tests simply due to working at GHz frequency.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128774382","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758097
Minmin Yang, Qingjin Meng, Meng Zhou
This article reported the temperature requirements in the production process of wet a gypsum. The first crystal transformation tank is very important part in the entire production process, in this crystal transformation tank has preliminary chemical reaction. The effect of chemical reactions mostly depends on the temperature of the crystal transformation tank, and the temperature is influenced by the amount of raw material in the crystal transformation tank, the pressure of crystal transformation tank and other effects. Comprehensive field experience derived that the temperature control of first crystal transformation tank with time delay, large inertia, nonlinear and other Characteristics, so the article puts forward Fuzzy-PID control strategy. Using MATLAB simulation and fuzzy control toolbox to establish simulation model simulation, and compared with conventional PID control. The simulation results show that Fuzzy-PID control has better control effect.
{"title":"A strategy of temperature control from wet alpha gypsum production","authors":"Minmin Yang, Qingjin Meng, Meng Zhou","doi":"10.1109/MIC.2013.6758097","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758097","url":null,"abstract":"This article reported the temperature requirements in the production process of wet a gypsum. The first crystal transformation tank is very important part in the entire production process, in this crystal transformation tank has preliminary chemical reaction. The effect of chemical reactions mostly depends on the temperature of the crystal transformation tank, and the temperature is influenced by the amount of raw material in the crystal transformation tank, the pressure of crystal transformation tank and other effects. Comprehensive field experience derived that the temperature control of first crystal transformation tank with time delay, large inertia, nonlinear and other Characteristics, so the article puts forward Fuzzy-PID control strategy. Using MATLAB simulation and fuzzy control toolbox to establish simulation model simulation, and compared with conventional PID control. The simulation results show that Fuzzy-PID control has better control effect.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"239 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114286443","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 embedded test terminals used in the electricity information acquisition test system are limited to the RAM space and the CPU processing ability, so the integral TCP/IP protocol is difficult to be used in the test terminals. A simplified TCP/IP protocol stack is designed for the electricity information acquisition test system. The simplified TCP/IP protocol stack can accomplish the basic communication of TCP/IP function including the ARP, ICMP, IP, UDP, TCP, the dynamic configuration of IP address, Client/Server mode switch and the MSS Buffer mechanism of TCP, but the RARP, IGMP and the sliding window mechanism of TCP which are otiose to the test terminals can be cut. The test results show that the protocol stack can accomplish the TCP/IP communication and satisfy the reliability and real-time property of the electricity information acquisition test system.
{"title":"Design of simplified TCP/IP protocol stack for electricity information acquisition test system","authors":"Min Xiang, Ling Luo, Ping Wang, Jianjun Huang, X. Hou, Qingling Zuo","doi":"10.1109/MIC.2013.6757906","DOIUrl":"https://doi.org/10.1109/MIC.2013.6757906","url":null,"abstract":"The embedded test terminals used in the electricity information acquisition test system are limited to the RAM space and the CPU processing ability, so the integral TCP/IP protocol is difficult to be used in the test terminals. A simplified TCP/IP protocol stack is designed for the electricity information acquisition test system. The simplified TCP/IP protocol stack can accomplish the basic communication of TCP/IP function including the ARP, ICMP, IP, UDP, TCP, the dynamic configuration of IP address, Client/Server mode switch and the MSS Buffer mechanism of TCP, but the RARP, IGMP and the sliding window mechanism of TCP which are otiose to the test terminals can be cut. The test results show that the protocol stack can accomplish the TCP/IP communication and satisfy the reliability and real-time property of the electricity information acquisition test system.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114306797","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 : 2013-08-01DOI: 10.1109/MIC.2013.6757927
Zhou Wei-jing, Hong Yan-ji
Microspacecraft plays an important role in space missions recently. And micro thrusters are the essential components for the microspacecraft to stabilization, pointing and position keeping. The technology of micro thrust measurement can evaluate the performance of micro thrusters. This paper designed a thrust stand based on the torsional beam for measuring the average thrust of pulsed micro thrusters. When pulsed thrust (the frequency of the pulsed thrust must be much larger than the natural frequency of the stand) is applied to the beam, the beam responses in horizontal plane by rotating about its axis. And the average thrust of the pulsed thrust is linear with the steady-state deflection angle of the beam. The static calibrations were performed based on the assembly of the multiturn coil and the permanent magnet. And the calibration results demonstrate good repeatability and good linearity. The thrust stand can theoretically measure the thrust up to 609.6 μN with a resolution of 24.4 nN. The assembly of the multiturn coil and the permanent magnet was also used as an exciter to further research the performance of the thrust stand. Three sets of force pulses with the same magnitude, the same pulse width and the different repetitive frequency were measured. The results demonstrate good measuring repeatability and the relative error is about 7.04%, 1.78% and 5.08% respectively.
{"title":"Pulsed μNewton thrust measurement with torsional thrust stand","authors":"Zhou Wei-jing, Hong Yan-ji","doi":"10.1109/MIC.2013.6757927","DOIUrl":"https://doi.org/10.1109/MIC.2013.6757927","url":null,"abstract":"Microspacecraft plays an important role in space missions recently. And micro thrusters are the essential components for the microspacecraft to stabilization, pointing and position keeping. The technology of micro thrust measurement can evaluate the performance of micro thrusters. This paper designed a thrust stand based on the torsional beam for measuring the average thrust of pulsed micro thrusters. When pulsed thrust (the frequency of the pulsed thrust must be much larger than the natural frequency of the stand) is applied to the beam, the beam responses in horizontal plane by rotating about its axis. And the average thrust of the pulsed thrust is linear with the steady-state deflection angle of the beam. The static calibrations were performed based on the assembly of the multiturn coil and the permanent magnet. And the calibration results demonstrate good repeatability and good linearity. The thrust stand can theoretically measure the thrust up to 609.6 μN with a resolution of 24.4 nN. The assembly of the multiturn coil and the permanent magnet was also used as an exciter to further research the performance of the thrust stand. Three sets of force pulses with the same magnitude, the same pulse width and the different repetitive frequency were measured. The results demonstrate good measuring repeatability and the relative error is about 7.04%, 1.78% and 5.08% respectively.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"507 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128052759","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758064
Guo Yuan-xu, Qiao Guoqing
Video signal simulation including echo of moving targets is important in the development of algorithm and software of radar signal processing, especially moving target tracking algorithm. The commonly used methods of simulating radar moving targets can generate targets whose moving pattern are well controlled but the shape and the fluctuation pattern of the echo signals generated by computer software are far from the real ones. To generate moving target video echo signals looks like the actual radar video signals of real target, we present a radar moving target video simulation method based on recorded radar video signals which include real but stationary targets. The idea is to use the real radar echo of the stationary targets recorded in each frame of the radar video to generate, moving target according to the moving pattern set by the user. If the moving target encounters some other targets in front of or close to it, collision avoidance method is also discussed.
{"title":"Simulation of radar moving targets based on the recorded video signal","authors":"Guo Yuan-xu, Qiao Guoqing","doi":"10.1109/MIC.2013.6758064","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758064","url":null,"abstract":"Video signal simulation including echo of moving targets is important in the development of algorithm and software of radar signal processing, especially moving target tracking algorithm. The commonly used methods of simulating radar moving targets can generate targets whose moving pattern are well controlled but the shape and the fluctuation pattern of the echo signals generated by computer software are far from the real ones. To generate moving target video echo signals looks like the actual radar video signals of real target, we present a radar moving target video simulation method based on recorded radar video signals which include real but stationary targets. The idea is to use the real radar echo of the stationary targets recorded in each frame of the radar video to generate, moving target according to the moving pattern set by the user. If the moving target encounters some other targets in front of or close to it, collision avoidance method is also discussed.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128150008","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758023
Bao Han
The paper briefly introduces the basic principle of S-transform. With the simulation experiments, the time-frequency space characteristics of short-time Fourier transform, Wigner-Ville distribution and S-transform are discussed. As the results suggest, the window of S-transform has a progressive frequency dependent resolution. So the S-transform has a great utility and flexibility in non-stationary signal processing. To compare the time-frequency spectrum of three different analysis methods under various noise conditions, it is obvious that S-transform has better anti-noise performance. It fully proves that S-transform is an even more effective means for non-stationary signal processing.
{"title":"The analysis of signal based on the S-transform","authors":"Bao Han","doi":"10.1109/MIC.2013.6758023","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758023","url":null,"abstract":"The paper briefly introduces the basic principle of S-transform. With the simulation experiments, the time-frequency space characteristics of short-time Fourier transform, Wigner-Ville distribution and S-transform are discussed. As the results suggest, the window of S-transform has a progressive frequency dependent resolution. So the S-transform has a great utility and flexibility in non-stationary signal processing. To compare the time-frequency spectrum of three different analysis methods under various noise conditions, it is obvious that S-transform has better anti-noise performance. It fully proves that S-transform is an even more effective means for non-stationary signal processing.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126663612","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 : 2013-08-01DOI: 10.1109/MIC.2013.6757926
Pan Jiang-huai
To focus of this paper is on the estimation for the ship-borne radar detecting systematic or registration errors. According to the ship-borne radar data processing, the types of bias are divided into four main categories: radar measurement biases, ship-position biases, attitude biases and baseline transform biases. In this paper, we present an algorithm that uses detecting data for estimation of equivalent biases. Our approach is unique for two reasons. Firstly, we explicitly avoid the use of individual biases and use equivalent biases model the four main class biases, This leads to a highly nonlinear bias model that contains 12 unknown parameters. Secondly, we use the singular value decomposition (SVD) within least-squares estimator to automatically handle the issue of parameter observability. Finally, according to two different simulation scenes, we demonstrate that our algorithm can improve track accuracy, especially for ship-borne radar.
{"title":"Robust least-squares bias estimation for radar detecting biases and attitude biases","authors":"Pan Jiang-huai","doi":"10.1109/MIC.2013.6757926","DOIUrl":"https://doi.org/10.1109/MIC.2013.6757926","url":null,"abstract":"To focus of this paper is on the estimation for the ship-borne radar detecting systematic or registration errors. According to the ship-borne radar data processing, the types of bias are divided into four main categories: radar measurement biases, ship-position biases, attitude biases and baseline transform biases. In this paper, we present an algorithm that uses detecting data for estimation of equivalent biases. Our approach is unique for two reasons. Firstly, we explicitly avoid the use of individual biases and use equivalent biases model the four main class biases, This leads to a highly nonlinear bias model that contains 12 unknown parameters. Secondly, we use the singular value decomposition (SVD) within least-squares estimator to automatically handle the issue of parameter observability. Finally, according to two different simulation scenes, we demonstrate that our algorithm can improve track accuracy, especially for ship-borne radar.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125198094","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758200
Jiang Wei
Being one of mainstream products in power electronics field, VDMOS has the features of strong input impedance, high switching speed, well heat stability and wide safety operation area. It is widely used in various kinds of fields such as motor driving, switch power supply, automotive electronics, energy saving lamp and so on. In this thesis, through calculation and simulation, the best design of VDMOS can be found in order to meet requirement which the device has 650V of drain-source voltage. It will be mainly focused to simulate to breakdown voltage, I-V input characteristics and transfer characteristics about static characteristics. Satisfied result will be gained and it will also meet design requirement.
{"title":"Statical simulation and analysis on 650V VDMOS tubes","authors":"Jiang Wei","doi":"10.1109/MIC.2013.6758200","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758200","url":null,"abstract":"Being one of mainstream products in power electronics field, VDMOS has the features of strong input impedance, high switching speed, well heat stability and wide safety operation area. It is widely used in various kinds of fields such as motor driving, switch power supply, automotive electronics, energy saving lamp and so on. In this thesis, through calculation and simulation, the best design of VDMOS can be found in order to meet requirement which the device has 650V of drain-source voltage. It will be mainly focused to simulate to breakdown voltage, I-V input characteristics and transfer characteristics about static characteristics. Satisfied result will be gained and it will also meet design requirement.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124111956","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758009
C. Jin, Jinglei Guo
The identification of a module's fault-proneness is very important for minimizing cost and improving the effectiveness of the software development process. How to obtain the correlation between inspection metrics and module's fault-proneness, hiding in the observed data, has been focused by very researches. In this paper, we propose the use of a fuzzy inference system for this purpose. In order to empirically evaluate the effectiveness of proposed approach, we apply it on empirical data published by Ebenau and NASA's Metrics Data Program data repository, respectively. Experiments results confirm that proposed approach is very effective for establishing relationship between inspection metrics and fault-proneness, and that its implementation don't require neither extra cost nor expert's knowledge, and it is completely automated. Novel approach can provide software project managers with reasonably suggestion and much-needed insights.
模块的故障识别对于降低软件开发成本和提高软件开发效率具有重要意义。如何获得隐藏在观测数据中的检测指标与模块故障倾向性之间的相关性一直是研究的热点。在本文中，我们提出使用一个模糊推理系统来达到这个目的。为了实证评估所提出方法的有效性，我们分别将其应用于Ebenau和NASA的Metrics data Program数据存储库发表的经验数据。实验结果表明，该方法能够有效地建立检测指标与故障倾向之间的关系，且不需要额外的成本和专家知识，实现了完全的自动化。新颖的方法可以为软件项目经理提供合理的建议和急需的见解。
{"title":"Automated software fault-proneness prediction based on fuzzy inference system","authors":"C. Jin, Jinglei Guo","doi":"10.1109/MIC.2013.6758009","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758009","url":null,"abstract":"The identification of a module's fault-proneness is very important for minimizing cost and improving the effectiveness of the software development process. How to obtain the correlation between inspection metrics and module's fault-proneness, hiding in the observed data, has been focused by very researches. In this paper, we propose the use of a fuzzy inference system for this purpose. In order to empirically evaluate the effectiveness of proposed approach, we apply it on empirical data published by Ebenau and NASA's Metrics Data Program data repository, respectively. Experiments results confirm that proposed approach is very effective for establishing relationship between inspection metrics and fault-proneness, and that its implementation don't require neither extra cost nor expert's knowledge, and it is completely automated. Novel approach can provide software project managers with reasonably suggestion and much-needed insights.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123739998","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 : 2013-08-01DOI: 10.1109/MIC.2013.6758065
Mu Senlin, Gao Jing-min
In the stability control issues, The feature of the inverted pendulum is universal and typically. As a controlled object, it is a fairly complex and high-order, multivariate, nonlinear, strongly coupled system. Thus, a fuzzy controller is designed, and the fuzzy logic function is used to approximate the nonlinear function of inverted pendulum. An adaptive law is deduced for inverted pendulum, the controller parameters can be adjusted online and the control performance of the system is improved.
{"title":"Adaptive fuzzy control in the application of primary inverted pendulum","authors":"Mu Senlin, Gao Jing-min","doi":"10.1109/MIC.2013.6758065","DOIUrl":"https://doi.org/10.1109/MIC.2013.6758065","url":null,"abstract":"In the stability control issues, The feature of the inverted pendulum is universal and typically. As a controlled object, it is a fairly complex and high-order, multivariate, nonlinear, strongly coupled system. Thus, a fuzzy controller is designed, and the fuzzy logic function is used to approximate the nonlinear function of inverted pendulum. An adaptive law is deduced for inverted pendulum, the controller parameters can be adjusted online and the control performance of the system is improved.","PeriodicalId":404630,"journal":{"name":"Proceedings of 2013 2nd International Conference on Measurement, Information and Control","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121778697","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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