Pub Date : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336600
Erxian Yao, Rui Wang, Xuguang Liu, Zhengwei Pan, Yan Tong
In this paper, the influence of module internal structure, gap between and substrate, chip layout on multi chips turn on consistency are analyzed, taking the 3300V-1500A IGBT module as example. the copper foil area of the drive PCB should be expanded as much as possible, and the gate copper foil and the emitter copper foil should overlap as much as possible to offset the influence of the power side current change on the drive signal. On the chip layout, the difference between the gate path and the emitter path length should be minimized to improve the consistency of the driving signals of different chips. The gap between the drive PCB and the backing plate should be increased as much as possible to reduce the impact of the power side current change on the drive side.
{"title":"Analysis of Multi Chips Turn on Consistency in High Voltage and High Current IGBT Module","authors":"Erxian Yao, Rui Wang, Xuguang Liu, Zhengwei Pan, Yan Tong","doi":"10.1109/ICCS51219.2020.9336600","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336600","url":null,"abstract":"In this paper, the influence of module internal structure, gap between and substrate, chip layout on multi chips turn on consistency are analyzed, taking the 3300V-1500A IGBT module as example. the copper foil area of the drive PCB should be expanded as much as possible, and the gate copper foil and the emitter copper foil should overlap as much as possible to offset the influence of the power side current change on the drive signal. On the chip layout, the difference between the gate path and the emitter path length should be minimized to improve the consistency of the driving signals of different chips. The gap between the drive PCB and the backing plate should be increased as much as possible to reduce the impact of the power side current change on the drive side.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121954853","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 : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336596
Md. Jahirul Alam, Shoyeb Ahammad Rafi, Ali Adnan Badhan, Md. Najmul Islam, Saiful Islam Shuvo, A. M. Saleque
The Internet of Things (IoT) is a modern innovation in today's world of the Internet, establishing an interconnection between devices and individuals and exchanging information through a shared platform. This paper proposes a low-cost water station based on IoT that can provide critical water information in real time, such as wind speeds and direction, temperature, humidity, and amount of rainfall. The use of low-cost but reliable controllers from Node MCU and Arduino UNO makes it accessible for a wide range of clients. The availability of information on a ThingSpeak web server guarantees the authorized person's access to data from anywhere in the world. A 3 cups anemometer and wind vane are used for wind speed detection and wind direction measurement, respectively. The DHT22 digital temperature and humidity sensor are used for the measurement of temperature and humidity. A custom acrylic glass rain gauge is designed for rainfall measurement. With the aid of a circuit, all weather data was de-bounced, and this de-bounced data was uploaded directly to the ThingSpeak server. This proposed design will solve the problem of the unavailability of weather information at different locations. Low-cost design, while ensuring reliable and accurate measurements, will encourage the use of the proposed design in many research and educational institutions as well.
{"title":"Low Cost IoT Based Weather Station for Real-Time Monitoring","authors":"Md. Jahirul Alam, Shoyeb Ahammad Rafi, Ali Adnan Badhan, Md. Najmul Islam, Saiful Islam Shuvo, A. M. Saleque","doi":"10.1109/ICCS51219.2020.9336596","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336596","url":null,"abstract":"The Internet of Things (IoT) is a modern innovation in today's world of the Internet, establishing an interconnection between devices and individuals and exchanging information through a shared platform. This paper proposes a low-cost water station based on IoT that can provide critical water information in real time, such as wind speeds and direction, temperature, humidity, and amount of rainfall. The use of low-cost but reliable controllers from Node MCU and Arduino UNO makes it accessible for a wide range of clients. The availability of information on a ThingSpeak web server guarantees the authorized person's access to data from anywhere in the world. A 3 cups anemometer and wind vane are used for wind speed detection and wind direction measurement, respectively. The DHT22 digital temperature and humidity sensor are used for the measurement of temperature and humidity. A custom acrylic glass rain gauge is designed for rainfall measurement. With the aid of a circuit, all weather data was de-bounced, and this de-bounced data was uploaded directly to the ThingSpeak server. This proposed design will solve the problem of the unavailability of weather information at different locations. Low-cost design, while ensuring reliable and accurate measurements, will encourage the use of the proposed design in many research and educational institutions as well.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116204694","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 introduces the construction and application of the electro-thermal co-simulation platform. Based on the finite element method, we first established a device-level simulation model of IGBT and diode with dynamic characteristics; at the same time, we extracted the corresponding network model through CFD simulation calculation of the transient operating conditions of the IGBT device; then, using 1200V 600A IGBT as an example to build a complete electro-thermal co-simulation platform; finally, the simulation data of the electro-thermal co-simulation platform and the test data of the developed 1200V 600A device are tested and verified under the same working conditions.
{"title":"Construction and Application of Electro-Thermal Co-simulation Platform","authors":"Zhengwei Pan, Jian Luo, Changcheng Dong, Xuguang Liu, Rui Wang, Erxian Yao","doi":"10.1109/ICCS51219.2020.9336616","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336616","url":null,"abstract":"This paper introduces the construction and application of the electro-thermal co-simulation platform. Based on the finite element method, we first established a device-level simulation model of IGBT and diode with dynamic characteristics; at the same time, we extracted the corresponding network model through CFD simulation calculation of the transient operating conditions of the IGBT device; then, using 1200V 600A IGBT as an example to build a complete electro-thermal co-simulation platform; finally, the simulation data of the electro-thermal co-simulation platform and the test data of the developed 1200V 600A device are tested and verified under the same working conditions.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134106474","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 : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336597
Shaowei Meng, Lei‐jun Xu, Zhenhua Sun
In this paper, a THz wideband push-push voltage-controlled oscillator (VCO) in 40nm CMOS process is designed. To achieve the wide tuning range, the proposed wideband VCO is realized by switched capacitor array. By applying passive capacitor connected between the transistors in cross coupled pair, the output power of the oscillator is improved. The simulated results show that the VCO has the tuning range of 16.8% from 146GHz to 173GHz with a supply voltage of 0.9V. The output power of the proposed VCO is 3.01dBm at 160GHz and the phase noise is −89dBc/Hz at 1MHz offset. Small chip size of the VCO including testing pads is 380×380 μm2.
{"title":"A 146-173GHz Wideband Push-Push VCO in 40nm CMOS","authors":"Shaowei Meng, Lei‐jun Xu, Zhenhua Sun","doi":"10.1109/ICCS51219.2020.9336597","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336597","url":null,"abstract":"In this paper, a THz wideband push-push voltage-controlled oscillator (VCO) in 40nm CMOS process is designed. To achieve the wide tuning range, the proposed wideband VCO is realized by switched capacitor array. By applying passive capacitor connected between the transistors in cross coupled pair, the output power of the oscillator is improved. The simulated results show that the VCO has the tuning range of 16.8% from 146GHz to 173GHz with a supply voltage of 0.9V. The output power of the proposed VCO is 3.01dBm at 160GHz and the phase noise is −89dBc/Hz at 1MHz offset. Small chip size of the VCO including testing pads is 380×380 μm2.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126898847","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}
With the rapid development of distributed power generation with renewable energy as the core, the proportion of energy storage stations connected to the grid is constantly increasing. The access of a large number of energy storage stations will inevitably affect the voltage level and line flow level of the distribution network. Therefore, by reasonably optimizing the access location and capacity of the energy storage station to ensure that its impact on the distribution network is optimal. On this basis, this article uses a multiobjective optimization method to define the minimum voltage deviation, the optimal transmission line margin, and the minimum network loss as the optimization goals. And the firework algorithm is used to solve the problem, and the best access location and access capacity of the energy storage station are obtained. Finally, the IEEE35 node case is used in MATLAB to carry out the simulation calculation to prove the validity of the conclusion. Therefore, the planning scheme of energy storage station proposed in this article has effective theoretical significance and practical value.
{"title":"Research on Layout of Energy Storage Stations Connected to Grid Based on Optimal Grid Impact","authors":"Deshu Gan, Huajun Guo, Changhong Deng, Guihui Lin, Hai-yang Wu, Minghui Deng, Wentao Huang","doi":"10.1109/ICCS51219.2020.9336521","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336521","url":null,"abstract":"With the rapid development of distributed power generation with renewable energy as the core, the proportion of energy storage stations connected to the grid is constantly increasing. The access of a large number of energy storage stations will inevitably affect the voltage level and line flow level of the distribution network. Therefore, by reasonably optimizing the access location and capacity of the energy storage station to ensure that its impact on the distribution network is optimal. On this basis, this article uses a multiobjective optimization method to define the minimum voltage deviation, the optimal transmission line margin, and the minimum network loss as the optimization goals. And the firework algorithm is used to solve the problem, and the best access location and access capacity of the energy storage station are obtained. Finally, the IEEE35 node case is used in MATLAB to carry out the simulation calculation to prove the validity of the conclusion. Therefore, the planning scheme of energy storage station proposed in this article has effective theoretical significance and practical value.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855535","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}
At present, the research of power system demand response mainly tends to the research of ‘peak shaving and valley filling’, that is, under the premise that some loads on the user side are interruptible or transferable loads, the grid can mobilize the enthusiasm of users directly or indirectly through effective economic or technical means to achieve peak shaving and valley filling. The power grid guides the users to use electricity orderly by means of electric charge compensation, differential electricity price, time of use price and other incentive measures, that is, the power market can reduce the peak valley difference of power grid, reduce the loss of power grid and load impact, and ensure the reliable operation of the power grid. In this paper, according to the research status of demand response, combined with the requirements of the demand response system, the multi user demand response resource address pool is studied and designed. Based on the resource address pool, the rapid query under the demand response demand can be realized.
{"title":"Research on Fast Quering Approach of User Demand Response Resource in Large Scale Resource Address Pool","authors":"Xie Zhihan, Chen Tieyi, Xue Li, Liu Kai, Chen Songsong, Yuan Jindou","doi":"10.1109/ICCS51219.2020.9336607","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336607","url":null,"abstract":"At present, the research of power system demand response mainly tends to the research of ‘peak shaving and valley filling’, that is, under the premise that some loads on the user side are interruptible or transferable loads, the grid can mobilize the enthusiasm of users directly or indirectly through effective economic or technical means to achieve peak shaving and valley filling. The power grid guides the users to use electricity orderly by means of electric charge compensation, differential electricity price, time of use price and other incentive measures, that is, the power market can reduce the peak valley difference of power grid, reduce the loss of power grid and load impact, and ensure the reliable operation of the power grid. In this paper, according to the research status of demand response, combined with the requirements of the demand response system, the multi user demand response resource address pool is studied and designed. Based on the resource address pool, the rapid query under the demand response demand can be realized.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134613352","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 : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336608
S. Moparthi, C. Yadav, G. Saramekala, P. Tiwari
For the first time, the machine learning approach is proposed for the analysis of device parameter variability impact on the threshold voltage of silicon-nanotube-based double gate-all-around (DGAA) MOSFET using multi-variable non-linear regression with five input variables. Interior-point algorithm is implemented in MATLAB and used for training the hypothesis. Algorithm is supplied with 2000 random initial guesses to ensure global minima in optimization for healthier accuracy at comfortable simulation time. The worst-case accuracy of 96.33 percent is achieved in prediction with an average percentage prediction error of 0.83 percent. Study revealed that, with proper training and optimization of the hypothesis (fitness) function it is possible to predict the threshold voltage of the device by keeping good trade-off between computation time and accuracy.
{"title":"Machine Learning Based Device Simulation Using Multi-variable Non-linear Regression to Assess the Impact of Device Parameter Variability on Threshold Voltage of Double Gate-All-Around (DGAA) MOSFET","authors":"S. Moparthi, C. Yadav, G. Saramekala, P. Tiwari","doi":"10.1109/ICCS51219.2020.9336608","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336608","url":null,"abstract":"For the first time, the machine learning approach is proposed for the analysis of device parameter variability impact on the threshold voltage of silicon-nanotube-based double gate-all-around (DGAA) MOSFET using multi-variable non-linear regression with five input variables. Interior-point algorithm is implemented in MATLAB and used for training the hypothesis. Algorithm is supplied with 2000 random initial guesses to ensure global minima in optimization for healthier accuracy at comfortable simulation time. The worst-case accuracy of 96.33 percent is achieved in prediction with an average percentage prediction error of 0.83 percent. Study revealed that, with proper training and optimization of the hypothesis (fitness) function it is possible to predict the threshold voltage of the device by keeping good trade-off between computation time and accuracy.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131135412","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 : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336591
Ruying Sun, Qinghu Chen, Rongcang Han, Zhongliang Lu
The tetra-band branch-line coupler (BLC) using equivalent quarter-wavelength transmission lines (EQTLs) is proposed. Moreover, the design equations of the tetra-band BLC are provided in this paper. The presented EQTL is comprised of a section of arbitrary-length transmission line (TL) and a coupled-lines (CLs). A desired tetra-band operation can be achieved by proper design of the coupling level for those coupled-line sections. A 3-dB tetra-band microstrip BLC located at the frequencies of 0.9/2.5/4.0/5.6 GHz is designed, fabricated and measured for verification. The measurements agree well with the simulations, and validate good performance over all the four passbands.
{"title":"A Tetra-Band Microstrip Branch-Line Coupler Using Equivalent Quarter-Wavelength Transmission Lines","authors":"Ruying Sun, Qinghu Chen, Rongcang Han, Zhongliang Lu","doi":"10.1109/ICCS51219.2020.9336591","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336591","url":null,"abstract":"The tetra-band branch-line coupler (BLC) using equivalent quarter-wavelength transmission lines (EQTLs) is proposed. Moreover, the design equations of the tetra-band BLC are provided in this paper. The presented EQTL is comprised of a section of arbitrary-length transmission line (TL) and a coupled-lines (CLs). A desired tetra-band operation can be achieved by proper design of the coupling level for those coupled-line sections. A 3-dB tetra-band microstrip BLC located at the frequencies of 0.9/2.5/4.0/5.6 GHz is designed, fabricated and measured for verification. The measurements agree well with the simulations, and validate good performance over all the four passbands.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115514248","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}
When residents participate in demand response, the randomness of residents' electricity consumption behavior can not be ignored in formulating demand response strategy. In this paper, according to the randomness of residential electricity consumption, the demand response control strategy for residential flexible load in China's new urban area is studied by making full use of the detailed residential electricity data available from the power grid. The daily demand response optimization dispatching model for residential flexible load equipment is established for load aggregator. Then the optimal scheduling model is solved.
{"title":"Research on the Implementation Architecture and Demand Response Controlling Strategy for Adjustable Load","authors":"Xie Zhihan, Chen Tieyi, Xue Li, Liu Kai, Chen Songsong, Yuan Jindou","doi":"10.1109/ICCS51219.2020.9336595","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336595","url":null,"abstract":"When residents participate in demand response, the randomness of residents' electricity consumption behavior can not be ignored in formulating demand response strategy. In this paper, according to the randomness of residential electricity consumption, the demand response control strategy for residential flexible load in China's new urban area is studied by making full use of the detailed residential electricity data available from the power grid. The daily demand response optimization dispatching model for residential flexible load equipment is established for load aggregator. Then the optimal scheduling model is solved.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129181458","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 : 2020-12-10DOI: 10.1109/ICCS51219.2020.9336589
Jinghe Wei, Ling Zhang, Zongguang Yu, De Liu
Accelerators have been widely used in SoC systems as an effective method to improve computing power. There are many ways of which CPU is coupled with accelerator. In this paper, we design a matrix-matrix multiplication accelerator and couple the accelerator with RISC-V CPU in two different forms - independent accelerator and instruction accelerators. Then we evaluate the performance of independent accelerator and new instruction accelerator. The matrix independent accelerator achieves up to 19.6x speedup to the Rocket CPU. And the matrix instruction accelerator achieves up to 44.5x speedup to the Rocket CPU. The instruction accelerator is 2.26x faster than independent accelerator.
{"title":"Design Space Exploration for Heterogenous SoC Integrated with Matrix Accelerator","authors":"Jinghe Wei, Ling Zhang, Zongguang Yu, De Liu","doi":"10.1109/ICCS51219.2020.9336589","DOIUrl":"https://doi.org/10.1109/ICCS51219.2020.9336589","url":null,"abstract":"Accelerators have been widely used in SoC systems as an effective method to improve computing power. There are many ways of which CPU is coupled with accelerator. In this paper, we design a matrix-matrix multiplication accelerator and couple the accelerator with RISC-V CPU in two different forms - independent accelerator and instruction accelerators. Then we evaluate the performance of independent accelerator and new instruction accelerator. The matrix independent accelerator achieves up to 19.6x speedup to the Rocket CPU. And the matrix instruction accelerator achieves up to 44.5x speedup to the Rocket CPU. The instruction accelerator is 2.26x faster than independent accelerator.","PeriodicalId":193552,"journal":{"name":"2020 IEEE 2nd International Conference on Circuits and Systems (ICCS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116009274","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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