Pub Date : 2018-03-01DOI: 10.1109/IEECON.2018.8712320
S. Theepharaksapan, K. Matra
Post-treatment of biotreated landfill leachate by atmospheric non-thermal plasma jet was proposed. A parallel operation of three atmospheric non-thermal argon plasma jets was applied for leachate treatment with water sample in strong acidic condition $(mathbf{pH} < 2)$. Three cases with different gap distances for 1.5, 3 and 4.5 cm were employed with a $4.5 mathbf{kV}_{text{rms}}$ 50 Hz AC neon sign transformer power source for 60 minutes. In this time, the influence of electrode gap distance $(text{G}_{text{d}})$ of argon plasma jet on the degradation of refractory organic compounds in biotreated landfill leachate was observed. Some key parameters of water quality including pH, DO, temperature, COD and the macromolecules, such as humic and fulvic substances, were measured before and after treatment. The result showed that the maximum removal of COD (33.9%), fulvic (53.3 %), humic (32.2%), and visible humic substances (57.2%) was found with the operating condition in 4.5 cm $text{G}_{text{d}}$ case. It could be confirmed that atmospheric non-thermal Ar plasma had the potential to effectively reduce the refractory organic compounds in wastewater which could be exploited for post-treatment of biotreated landfill leachate.
提出了常压非热等离子体射流对垃圾渗滤液进行后处理的方法。采用三种常压非热氩等离子体射流并联操作，对强酸性条件下的水样$(mathbf{pH} < 2)$进行渗滤液处理。使用$4.5 mathbf{kV}_{text{rms}}$ 50 Hz交流霓虹灯变压器电源，使用3个不同间距为1.5、3和4.5 cm的箱体60分钟。本文考察了氩等离子体射流电极间隙距离$(text{G}_{text{d}})$对生物处理后垃圾渗滤液中难降解有机物的影响。测定了处理前后的pH、DO、温度、COD等关键水质参数和腐殖质、腐殖质等大分子物质。结果表明，在4.5 cm $text{G}_{text{d}}$的工况下，COD去除率最高(33.9%)，腐殖质去除率最高(53.3%)，腐殖质去除率最高(32.2%)，可见腐殖质去除率最高(57.2%)。结果表明，常压非热氩等离子体具有有效还原废水中难降解有机物的潜力，可用于生物处理垃圾渗滤液的后处理。
{"title":"Atmospheric Argon Plasma Jet for Post-Treatment of Biotreated Landfill Leachate","authors":"S. Theepharaksapan, K. Matra","doi":"10.1109/IEECON.2018.8712320","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712320","url":null,"abstract":"Post-treatment of biotreated landfill leachate by atmospheric non-thermal plasma jet was proposed. A parallel operation of three atmospheric non-thermal argon plasma jets was applied for leachate treatment with water sample in strong acidic condition $(mathbf{pH} < 2)$. Three cases with different gap distances for 1.5, 3 and 4.5 cm were employed with a $4.5 mathbf{kV}_{text{rms}}$ 50 Hz AC neon sign transformer power source for 60 minutes. In this time, the influence of electrode gap distance $(text{G}_{text{d}})$ of argon plasma jet on the degradation of refractory organic compounds in biotreated landfill leachate was observed. Some key parameters of water quality including pH, DO, temperature, COD and the macromolecules, such as humic and fulvic substances, were measured before and after treatment. The result showed that the maximum removal of COD (33.9%), fulvic (53.3 %), humic (32.2%), and visible humic substances (57.2%) was found with the operating condition in 4.5 cm $text{G}_{text{d}}$ case. It could be confirmed that atmospheric non-thermal Ar plasma had the potential to effectively reduce the refractory organic compounds in wastewater which could be exploited for post-treatment of biotreated landfill leachate.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"56 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77876247","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712182
B. Boonchu
A four-quadrant analogue multiplier with low-voltage low-power is proposed in this paper. The design techniques are based on sub-threshold CMOS voltage amplifier and the voltage-sum circuit. The circuit can operate for two input voltages range of $pmb{pm 25} mathbf{mV}$, with the harmonic distortion is 1.3%. Furthermore, its features are 0.8 V power supply, $pmb{0.78 mu} mathbf{W}$ power consumption, and 650 kHz bandwidth. The proposed circuit is designed using standard $pmb{0.18 mu} mathbf{m}$ CMOS technology. The SPICE simulation results show the performance of the circuit and confirm the validity of the design technique.
{"title":"Low-Voltage Low-Power Sub-Threshold CMOS Four-Quadrant Analogue Multiplier","authors":"B. Boonchu","doi":"10.1109/IEECON.2018.8712182","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712182","url":null,"abstract":"A four-quadrant analogue multiplier with low-voltage low-power is proposed in this paper. The design techniques are based on sub-threshold CMOS voltage amplifier and the voltage-sum circuit. The circuit can operate for two input voltages range of $pmb{pm 25} mathbf{mV}$, with the harmonic distortion is 1.3%. Furthermore, its features are 0.8 V power supply, $pmb{0.78 mu} mathbf{W}$ power consumption, and 650 kHz bandwidth. The proposed circuit is designed using standard $pmb{0.18 mu} mathbf{m}$ CMOS technology. The SPICE simulation results show the performance of the circuit and confirm the validity of the design technique.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"72 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73401575","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712315
Jun Shi, Ling Pu, Xiaoling Zhang
The outdoor RCS measurement technique is crucial for the radar and aeronautical design applications, especially in the face of large objects. Because of the background interference, the multi-bounce effect is unavoidable and will contaminate the measuring result greatly. In this paper, a novel method to eliminate the multi-bounce effect via 3D imaging technique is proposed. Compared with the traditional methods, high-resolution 3D microwave image can separate the desired image from the multi-bounce false images in the image domain by using the difference of the transmission paths. Simulation results show that this method can clearly eliminate the multi-bounce effect of the outdoor RCS measurement.
{"title":"Elimination of Multi-Bounce Effect for Outdoor RCS Measurement via 3D Imaging","authors":"Jun Shi, Ling Pu, Xiaoling Zhang","doi":"10.1109/IEECON.2018.8712315","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712315","url":null,"abstract":"The outdoor RCS measurement technique is crucial for the radar and aeronautical design applications, especially in the face of large objects. Because of the background interference, the multi-bounce effect is unavoidable and will contaminate the measuring result greatly. In this paper, a novel method to eliminate the multi-bounce effect via 3D imaging technique is proposed. Compared with the traditional methods, high-resolution 3D microwave image can separate the desired image from the multi-bounce false images in the image domain by using the difference of the transmission paths. Simulation results show that this method can clearly eliminate the multi-bounce effect of the outdoor RCS measurement.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"14 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74281019","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712196
Chaninun Yoddee, W. Kanokbannakorn, Siwapon Srisonpan
This paper presents the procedures for performing arc flash hazard assessment in medium voltage switchgear. A cement plant is used as an example to demonstrate the assessment procedures. The results shown that the assessment should consider the operating conditions of the system, to ensure the arc flash hazard level. The contribution of generator changes the short circuit current, which in turn changes the operating time of the protective relays. This results in the significance of increase in the incidentl energy and hazard level at switchgear.
{"title":"Arc Flash Hazard Assessment in Medium Voltage Switchgear: A Case Study in Cement Plant","authors":"Chaninun Yoddee, W. Kanokbannakorn, Siwapon Srisonpan","doi":"10.1109/IEECON.2018.8712196","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712196","url":null,"abstract":"This paper presents the procedures for performing arc flash hazard assessment in medium voltage switchgear. A cement plant is used as an example to demonstrate the assessment procedures. The results shown that the assessment should consider the operating conditions of the system, to ensure the arc flash hazard level. The contribution of generator changes the short circuit current, which in turn changes the operating time of the protective relays. This results in the significance of increase in the incidentl energy and hazard level at switchgear.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"18 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74627394","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712178
Narong Aphiratsakun, Lam Thanh Duy, J. Kongthon
This article presents the AU Automatic Car-Parking Modeling System, hereafter referred to as the AU-CPS. The AU-CPS is a model of an automatic parking system controlled by PLC. It interacts with the user via HMI, driven by three DC motors with the use of photo-electric sensors. A crane is used to lift and take the car from an initial to parking slot and from a parking slot to the exit way. The AU-CPS also shows whether parking is full or not by turning on an LED, and it uses sensors to detect the car in the slot to avoid overlapping in each slot.
{"title":"AU Automatic Car-Parking Modeling System","authors":"Narong Aphiratsakun, Lam Thanh Duy, J. Kongthon","doi":"10.1109/IEECON.2018.8712178","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712178","url":null,"abstract":"This article presents the AU Automatic Car-Parking Modeling System, hereafter referred to as the AU-CPS. The AU-CPS is a model of an automatic parking system controlled by PLC. It interacts with the user via HMI, driven by three DC motors with the use of photo-electric sensors. A crane is used to lift and take the car from an initial to parking slot and from a parking slot to the exit way. The AU-CPS also shows whether parking is full or not by turning on an LED, and it uses sensors to detect the car in the slot to avoid overlapping in each slot.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"56 78 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74853348","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712223
Chumpol Siriwattanasit, A. Sangswang, S. Naetiladdanon, E. Mujjalinvimut
This paper presents a design and control of single-phase transformerless grid-connected impedance source inverter. The conventional tranformerless grid-connected inverters might cause the DC offset in the injected currents to the grid due to the leakage current from deteriorated PV panels. The three-switch three-state impedance source inverter can mitigate the leakage current problem by using the grounded pole topology. The introduced single-stage inverter has buck-boost feature, which provides the desired output AC voltage. The single-phase decoupling control method is designed and implemented based on MATLAB/Simulink with the dSPACE DS1104 controller board. Experimental results show the good performance in the transfer power as well as the sinusoidal injected current.
{"title":"Single-Phase Transformerless Grid-Connected Impedance Source Inverter","authors":"Chumpol Siriwattanasit, A. Sangswang, S. Naetiladdanon, E. Mujjalinvimut","doi":"10.1109/IEECON.2018.8712223","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712223","url":null,"abstract":"This paper presents a design and control of single-phase transformerless grid-connected impedance source inverter. The conventional tranformerless grid-connected inverters might cause the DC offset in the injected currents to the grid due to the leakage current from deteriorated PV panels. The three-switch three-state impedance source inverter can mitigate the leakage current problem by using the grounded pole topology. The introduced single-stage inverter has buck-boost feature, which provides the desired output AC voltage. The single-phase decoupling control method is designed and implemented based on MATLAB/Simulink with the dSPACE DS1104 controller board. Experimental results show the good performance in the transfer power as well as the sinusoidal injected current.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"189 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91283337","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712232
Aphirak Thitinauremit, R. Punchalard
A fast adaptive method to eliminate a single sinusoidal interference of known frequency is proposed. The coupled-oscillator is used to generate the reference signal instead of look-up table. Unlike the least mean square (LMS) based adaptive algorithm, the weighted least squared error criterion is employed instead to evaluate the system parameters. It has been shown that the proposed method can quickly eliminate unwanted interference as compared to previous methods, Moreover, the extensive simulations have been done and revealed that proposed algorithm yields a constant output signal to interference ratio (SIR) of about 20 dB regardless of input SIR.
{"title":"Fast Adaptive Algorithm for Sinusoidal Interference Cancellation","authors":"Aphirak Thitinauremit, R. Punchalard","doi":"10.1109/IEECON.2018.8712232","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712232","url":null,"abstract":"A fast adaptive method to eliminate a single sinusoidal interference of known frequency is proposed. The coupled-oscillator is used to generate the reference signal instead of look-up table. Unlike the least mean square (LMS) based adaptive algorithm, the weighted least squared error criterion is employed instead to evaluate the system parameters. It has been shown that the proposed method can quickly eliminate unwanted interference as compared to previous methods, Moreover, the extensive simulations have been done and revealed that proposed algorithm yields a constant output signal to interference ratio (SIR) of about 20 dB regardless of input SIR.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"13 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87557499","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712179
E. R. Mmary, B. Marungsri
Increasing penetration of Hybrid Renewable Generator in recent year's present new challenges for planning and optimal operation of the Smart Distribution Network. For this purpose, performance indices introduced for determining the suitable position of HRGs together with shunt-capacitors. However, the hosting capacities of HRG determined by use of Artificial Bee Colony (ABC) algorithm. The performance of the proposed methods validated on standards IEEE 34-nodes and IEEE 37-nodes radial distribution networks (RDN). The results have shown improvement of voltage level from O. 902p.u to 1. OOlp.u, reduction of power loss from 1.12MW to 0.64MW and diminished reactive power loss from 0.72MVAR to O.34MVAR by integrating of HRG to RDN. Results suggest that the proposed methods are reliable and can apply to the real radial distribution networks.
{"title":"Optimal Hybrid Renewable Generator for Techno-Economic Benefits in Smart Distribution Network","authors":"E. R. Mmary, B. Marungsri","doi":"10.1109/IEECON.2018.8712179","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712179","url":null,"abstract":"Increasing penetration of Hybrid Renewable Generator in recent year's present new challenges for planning and optimal operation of the Smart Distribution Network. For this purpose, performance indices introduced for determining the suitable position of HRGs together with shunt-capacitors. However, the hosting capacities of HRG determined by use of Artificial Bee Colony (ABC) algorithm. The performance of the proposed methods validated on standards IEEE 34-nodes and IEEE 37-nodes radial distribution networks (RDN). The results have shown improvement of voltage level from O. 902p.u to 1. OOlp.u, reduction of power loss from 1.12MW to 0.64MW and diminished reactive power loss from 0.72MVAR to O.34MVAR by integrating of HRG to RDN. Results suggest that the proposed methods are reliable and can apply to the real radial distribution networks.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"47 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72861422","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712222
C. Wutthithanyawat, Santi Wangnippamto
A decentralized PID controller design for TITO system combined with inverted decoupling is investigated by using a coefficient diagram method (CDM) when a case study of this control design is an application of Wood-Berry distillation column process and a FOPDT model of the process is considered. As given the CDM parameters, the decentralized PID controller parameters of the Wood-Berry distillation column combined inverted decoupler process can be determined and the proposed control system can regulate the process variables of TITO process. It can be concluded that the designed decentralized PID controller based on inverted decoupling showed a good performance to sustain the controlled variables.
{"title":"Design of Decentralized PID Controller with Coefficient Diagram Method Based on Inverted Decoupling for TITO System","authors":"C. Wutthithanyawat, Santi Wangnippamto","doi":"10.1109/IEECON.2018.8712222","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712222","url":null,"abstract":"A decentralized PID controller design for TITO system combined with inverted decoupling is investigated by using a coefficient diagram method (CDM) when a case study of this control design is an application of Wood-Berry distillation column process and a FOPDT model of the process is considered. As given the CDM parameters, the decentralized PID controller parameters of the Wood-Berry distillation column combined inverted decoupler process can be determined and the proposed control system can regulate the process variables of TITO process. It can be concluded that the designed decentralized PID controller based on inverted decoupling showed a good performance to sustain the controlled variables.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"17 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87367265","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 : 2018-03-01DOI: 10.1109/IEECON.2018.8712172
Nut Soykacw, N. Teerakawanich, S. Dechanupaprittha
An improved method for estimation of dominant electromechanical mode based on synchrophasor data of interconnected smart grids is proposed. By using synchrophasor measurement, a simplified oscillation model (SOM) and Prony method based on the most recent data can be employed for detection and assessment of estimated inter-area modes. However, some operating conditions, the estimated model is not accurate by means of SOM and prony methods. The proposed method observes decaying signal period. Then, a dominant oscillation mode is evaluated based on synchrophasor data to obtain dominant frequency and damping factor. Finally, the proposed method is compared to existing methods (SOM and Prony) by using simulated synchrophasor data from two-area smart grids.
{"title":"Estimation of Electromechanical Mode Based on Synchrophasor Data","authors":"Nut Soykacw, N. Teerakawanich, S. Dechanupaprittha","doi":"10.1109/IEECON.2018.8712172","DOIUrl":"https://doi.org/10.1109/IEECON.2018.8712172","url":null,"abstract":"An improved method for estimation of dominant electromechanical mode based on synchrophasor data of interconnected smart grids is proposed. By using synchrophasor measurement, a simplified oscillation model (SOM) and Prony method based on the most recent data can be employed for detection and assessment of estimated inter-area modes. However, some operating conditions, the estimated model is not accurate by means of SOM and prony methods. The proposed method observes decaying signal period. Then, a dominant oscillation mode is evaluated based on synchrophasor data to obtain dominant frequency and damping factor. Finally, the proposed method is compared to existing methods (SOM and Prony) by using simulated synchrophasor data from two-area smart grids.","PeriodicalId":6628,"journal":{"name":"2018 International Electrical Engineering Congress (iEECON)","volume":"62 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84048620","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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