Pub Date : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334188
L. Kong, Zihan Xu, Changrong Liu, Y. Liu, Xueguan Liu
This paper proposes a signal covering analysis method for multi-channel RFID system to improve the detecting efficiency and accuracy for the moving tags. A program is developed for the prediction analysis of the field intensity in the working space and used for the optimal installations of the reading antennas. In the application for the design of a four-channel RFID system, the calculated field intensity analysis matches well with the simulated results and gives the optimal installation coordinates for the four antennas with a satisfaction of the detecting sensitivity.
{"title":"Prediction Analysis of the Signal Coverage from Multi-antenna System","authors":"L. Kong, Zihan Xu, Changrong Liu, Y. Liu, Xueguan Liu","doi":"10.1109/ICEICT51264.2020.9334188","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334188","url":null,"abstract":"This paper proposes a signal covering analysis method for multi-channel RFID system to improve the detecting efficiency and accuracy for the moving tags. A program is developed for the prediction analysis of the field intensity in the working space and used for the optimal installations of the reading antennas. In the application for the design of a four-channel RFID system, the calculated field intensity analysis matches well with the simulated results and gives the optimal installation coordinates for the four antennas with a satisfaction of the detecting sensitivity.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128068545","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334338
Wen Li, K. Chung, Yingsong Li
This paper introduces a Chanel-logo shaped antenna. By characteristic mode analysis (CMA), modal significance and modal radiation patterns of different modes were studied and find the suitable mode that can be easily excited. The Y-shaped feeding structure was chosen to excite the desired modes and have a good impedance matching. The simulation results indicated that the 10-dB return loss bandwidth of 2.5-4 GHz (46.2%) is obtained. This work demonstrates feasibility of future application in product advertisement.
{"title":"Characteristic Mode Design of Chanel-Logo Shaped Antenna","authors":"Wen Li, K. Chung, Yingsong Li","doi":"10.1109/ICEICT51264.2020.9334338","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334338","url":null,"abstract":"This paper introduces a Chanel-logo shaped antenna. By characteristic mode analysis (CMA), modal significance and modal radiation patterns of different modes were studied and find the suitable mode that can be easily excited. The Y-shaped feeding structure was chosen to excite the desired modes and have a good impedance matching. The simulation results indicated that the 10-dB return loss bandwidth of 2.5-4 GHz (46.2%) is obtained. This work demonstrates feasibility of future application in product advertisement.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125793436","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334174
W. Cao, Longjun Lian
In this communication, we present a new omnidirectional antenna based on biconical antenna element to achieve high gain and wideband with center-fed. The feed of antenna is realized by the coupling slot of the middle of the main feeder excite the secondary feeder, that ensuring the maximum gain of the antenna is stable in the horizontal direction. The bandwidth of S11 (-10dB) is enhanced to 11.2% (10.2~11.4GHz) by the capacitive short circuit branch and impedance matching section. The measure results show that the realized gain of array is greater than 8dBi in work bandwidth, and peak realized gain is 9.56dBi. The ripple of the omnidirectional radiation pattern in the H-plane is less than 0.5dB. The proposed biconical arrays are promising for future wireless communication applications.
{"title":"X-Band Omnidirectional High Gain Biconical Array Antenna","authors":"W. Cao, Longjun Lian","doi":"10.1109/ICEICT51264.2020.9334174","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334174","url":null,"abstract":"In this communication, we present a new omnidirectional antenna based on biconical antenna element to achieve high gain and wideband with center-fed. The feed of antenna is realized by the coupling slot of the middle of the main feeder excite the secondary feeder, that ensuring the maximum gain of the antenna is stable in the horizontal direction. The bandwidth of S11 (-10dB) is enhanced to 11.2% (10.2~11.4GHz) by the capacitive short circuit branch and impedance matching section. The measure results show that the realized gain of array is greater than 8dBi in work bandwidth, and peak realized gain is 9.56dBi. The ripple of the omnidirectional radiation pattern in the H-plane is less than 0.5dB. The proposed biconical arrays are promising for future wireless communication applications.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121961749","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334196
Lingling Wang, K. Chung, Jianlin Luo
We propose a newly developed “phase-area method” to gauge the variations of multidirectional strain using a circularly-polarized (CP) patch antenna sensor excited by a proximity-coupled microstrip line in this paper. In order to minimize the physical size of sensor, high-dielectric-constant RO3010 dielectric laminate is used as the substrate for the antenna sensor, thus the sensor owns a small patch size of 17.66mm×18.46mm. A proof-of-concept prototype has been conducted to reveal the principle of multidirectional strain detecting through the concept of orthogonal modes (TM10 & TM01). Very high sensitivities of −106.8 and +71.2 ppm/με have been achieved for the x- and y-directional strain, respectively.
{"title":"CP-Patch-Based Strain Sensor With High Sensitivity for Structural Health Monitoring","authors":"Lingling Wang, K. Chung, Jianlin Luo","doi":"10.1109/ICEICT51264.2020.9334196","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334196","url":null,"abstract":"We propose a newly developed “phase-area method” to gauge the variations of multidirectional strain using a circularly-polarized (CP) patch antenna sensor excited by a proximity-coupled microstrip line in this paper. In order to minimize the physical size of sensor, high-dielectric-constant RO3010 dielectric laminate is used as the substrate for the antenna sensor, thus the sensor owns a small patch size of 17.66mm×18.46mm. A proof-of-concept prototype has been conducted to reveal the principle of multidirectional strain detecting through the concept of orthogonal modes (TM10 & TM01). Very high sensitivities of −106.8 and +71.2 ppm/με have been achieved for the x- and y-directional strain, respectively.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130046849","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334198
Yang Liu, Xin Liu, Shuang Cheng, Yuzhi Zhang
In this paper, parallelly concatenated spatially coupled RA (PC-SCRA) codes was presented based on spatially coupled RA (SCRA) codes with the advantages of simple coding structure, threshold saturation and low decoding complexity. When encoding, the same message bits are respectively encoded by two same SCRA codes to obtain respective check bits. During transmission, the message bits and the obtained parity bits are merged into one codeword for transmission. Besides, density evolution algorithm was proposed to compute the iterative decoding threshold of PC-SCRA code ensemble over the binary erasure channel. Simulation results show that the proposed PC-SCRA code ensemble has excellent BP threshold performance close to Shannon limit and is superior to the spatially coupled LDPC (SC-LDPC) code with same coderate, which provides a new way for construrting capacity-approaching SC-LDPC codes.
{"title":"Design of Parallelly Concatenated Spatially Coupled RA Codes","authors":"Yang Liu, Xin Liu, Shuang Cheng, Yuzhi Zhang","doi":"10.1109/ICEICT51264.2020.9334198","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334198","url":null,"abstract":"In this paper, parallelly concatenated spatially coupled RA (PC-SCRA) codes was presented based on spatially coupled RA (SCRA) codes with the advantages of simple coding structure, threshold saturation and low decoding complexity. When encoding, the same message bits are respectively encoded by two same SCRA codes to obtain respective check bits. During transmission, the message bits and the obtained parity bits are merged into one codeword for transmission. Besides, density evolution algorithm was proposed to compute the iterative decoding threshold of PC-SCRA code ensemble over the binary erasure channel. Simulation results show that the proposed PC-SCRA code ensemble has excellent BP threshold performance close to Shannon limit and is superior to the spatially coupled LDPC (SC-LDPC) code with same coderate, which provides a new way for construrting capacity-approaching SC-LDPC codes.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130187008","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334234
Qing-long Dai, Jin Qian
The existence of bounded data and unbounded data gives a great challenge for data processing in smart cities. The wide application of the internet of things (IoT) makes the data amount rapidly increase. This leads to further raise the requirement for data processing in smart cities, especially the demand for low latency and abundant data in real-time video services. To solve this problem, a Flink based framework with smart city adaption is proposed. A mathematical model for data processing in smart cities is formulated. Through this model's solution, the path with the minimum resource occupancy ratio (ROR) is obtained. The superiority and feasibility of our work are validated via numerical simulation and prototype implementation, respectively.
{"title":"A Distributed Stream Data Processing Platform Design and Implementation in Smart Cities","authors":"Qing-long Dai, Jin Qian","doi":"10.1109/ICEICT51264.2020.9334234","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334234","url":null,"abstract":"The existence of bounded data and unbounded data gives a great challenge for data processing in smart cities. The wide application of the internet of things (IoT) makes the data amount rapidly increase. This leads to further raise the requirement for data processing in smart cities, especially the demand for low latency and abundant data in real-time video services. To solve this problem, a Flink based framework with smart city adaption is proposed. A mathematical model for data processing in smart cities is formulated. Through this model's solution, the path with the minimum resource occupancy ratio (ROR) is obtained. The superiority and feasibility of our work are validated via numerical simulation and prototype implementation, respectively.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134347388","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}
Inspired by hyperspectral classification algorithm with kernel function, a joint sparse representation classification method based on dictionary optimization (DO-JSRC) is presented to lower the cost of information collection for hyperspectral, as spectral information of hyperspectral images (HSIs) and size of sparse representation dictionary dramatically increases. In this proposed method, we initially select a small number of atoms, calculate the spectral similarity between each atom and the cluster center of the sample through the Gaussian kernel function, and then take the average value. For an atomic dictionary with low spectral similarity, we increase the number of atoms to make it sufficiently representative of this class. The principal component analysis is adopted to extract the principal components of the dictionary after reselecting the atoms, which help to reduce redundant components of the dictionary and facilitates the sparse representation classification. Experiments on the Indian pines datasets show that the presented method can better classify hyperspectral datasets with fewer atoms.
{"title":"Joint sparse representation of hyperspectral image classification based on optimized dictionary","authors":"Yueying Zhang, Ming Zhang, Zhen Qin, Yu Zheng, Wenwen Chen, Haibo Zhang","doi":"10.1109/ICEICT51264.2020.9334331","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334331","url":null,"abstract":"Inspired by hyperspectral classification algorithm with kernel function, a joint sparse representation classification method based on dictionary optimization (DO-JSRC) is presented to lower the cost of information collection for hyperspectral, as spectral information of hyperspectral images (HSIs) and size of sparse representation dictionary dramatically increases. In this proposed method, we initially select a small number of atoms, calculate the spectral similarity between each atom and the cluster center of the sample through the Gaussian kernel function, and then take the average value. For an atomic dictionary with low spectral similarity, we increase the number of atoms to make it sufficiently representative of this class. The principal component analysis is adopted to extract the principal components of the dictionary after reselecting the atoms, which help to reduce redundant components of the dictionary and facilitates the sparse representation classification. Experiments on the Indian pines datasets show that the presented method can better classify hyperspectral datasets with fewer atoms.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131667829","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334225
Heng Wang, Zhuwei Wang, Yifan Sun, Yuehui Guo, Chao Fang, Meng Li, Yang Sun
In recent years, microgrids develop rapidly due to the superiority of reliability and flexibility. Load frequency control (LFC), as a vital role in microgrids, can maintain the stability of the microgrid and ensure that the exchange power on the tie line between interconnected power systems remains at the desired value. In the LFC system, wireless communication is the key factor to make the system more efficient and concise while it gives rise to delays in the meantime. In this paper, an optimal LFC algorithm is proposed in the presence of the network-induced delay. First, the LFC system is analyzed, and then the discrete-time system model is established. Then, the optimal LFC problem is formulated using a quadratic cost function with the objective of minimizing the deviations of frequency. The optimal close-loop control strategy is solved in an iterative manner by using a backward recursion which can be divided into two steps. In particular, the optimal control gain can be iteratively derived at off-line step, and then the control strategy can be calculated at on-line step. Finally, the performance and stability of proposed optimal LFC algorithm are verified by numerical simulations to highlight its superiority compared with the existing algorithms.
近年来，微电网因其可靠性和灵活性的优越性而迅速发展。负载频率控制(Load frequency control, LFC)在微电网中起着至关重要的作用，它可以维持微电网的稳定运行，保证互联电力系统间交接线上的交换功率保持在理想值。在LFC系统中，无线通信是使系统更高效、简洁的关键因素，但同时也会产生时延。本文提出了一种存在网络延迟的最优LFC算法。首先对LFC系统进行分析，然后建立离散时间系统模型。然后，以最小化频率偏差为目标，利用二次代价函数来构造最优LFC问题。采用后向递归迭代法求解最优闭环控制策略，该方法可分为两步。特别地，在离线阶跃处迭代推导出最优控制增益，然后在在线阶跃处计算出控制策略。最后，通过数值仿真验证了所提最优LFC算法的性能和稳定性，突出了其与现有算法相比的优越性。
{"title":"Optimal Control Design for Load Frequency Control with Network-induced Delays","authors":"Heng Wang, Zhuwei Wang, Yifan Sun, Yuehui Guo, Chao Fang, Meng Li, Yang Sun","doi":"10.1109/ICEICT51264.2020.9334225","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334225","url":null,"abstract":"In recent years, microgrids develop rapidly due to the superiority of reliability and flexibility. Load frequency control (LFC), as a vital role in microgrids, can maintain the stability of the microgrid and ensure that the exchange power on the tie line between interconnected power systems remains at the desired value. In the LFC system, wireless communication is the key factor to make the system more efficient and concise while it gives rise to delays in the meantime. In this paper, an optimal LFC algorithm is proposed in the presence of the network-induced delay. First, the LFC system is analyzed, and then the discrete-time system model is established. Then, the optimal LFC problem is formulated using a quadratic cost function with the objective of minimizing the deviations of frequency. The optimal close-loop control strategy is solved in an iterative manner by using a backward recursion which can be divided into two steps. In particular, the optimal control gain can be iteratively derived at off-line step, and then the control strategy can be calculated at on-line step. Finally, the performance and stability of proposed optimal LFC algorithm are verified by numerical simulations to highlight its superiority compared with the existing algorithms.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"608 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127521746","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334235
Dandan Yan, Qian Xu, Chen Yu, Yi Huang, T. Loh
A broadband reference antenna is proposed for antenna efficiency measurements in a reverberation chamber. The proposed antenna consists of two elliptical shaped dipole arms with elliptical slots etched on opposite sides of a thin FR4 substrate and fed by an exponential tapered microstrip balun. Measurements have been conducted to verify the antenna performance. The results show that this design shows acceptable radiation efficiency from 200 MHz to 6 GHz.
{"title":"A Broadband Reference Antenna for Efficiency Measurements in a Reverberation Chamber","authors":"Dandan Yan, Qian Xu, Chen Yu, Yi Huang, T. Loh","doi":"10.1109/ICEICT51264.2020.9334235","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334235","url":null,"abstract":"A broadband reference antenna is proposed for antenna efficiency measurements in a reverberation chamber. The proposed antenna consists of two elliptical shaped dipole arms with elliptical slots etched on opposite sides of a thin FR4 substrate and fed by an exponential tapered microstrip balun. Measurements have been conducted to verify the antenna performance. The results show that this design shows acceptable radiation efficiency from 200 MHz to 6 GHz.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"38 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133784560","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 : 2020-11-13DOI: 10.1109/ICEICT51264.2020.9334191
Zhewei Zhao, Yuqing Zhu, Changjiang Deng
In this paper, a compact dual-layer wide-angle scanning 1×4 microstrip array operating at 28 GHz is proposed for 5G applications. The microstrip element is loaded with capacitive via fences to reduce the size of the element and widen the beamwidth. The element space of the array is merely 0.34λ0 (λ0is the wavelength at 28 GHz in free space). U-shaped decoupling structure is introduced between the adjacent element antennas to reduce mutual coupling. The simulated beam scanning ranges from −50° to +50° within 3 dB gain variation, which is suitable for wide-angle scanning applications.
{"title":"Microstrip Phased Array Antenna With Small Element Space for 5G Millimeter-Wave Applications","authors":"Zhewei Zhao, Yuqing Zhu, Changjiang Deng","doi":"10.1109/ICEICT51264.2020.9334191","DOIUrl":"https://doi.org/10.1109/ICEICT51264.2020.9334191","url":null,"abstract":"In this paper, a compact dual-layer wide-angle scanning 1×4 microstrip array operating at 28 GHz is proposed for 5G applications. The microstrip element is loaded with capacitive via fences to reduce the size of the element and widen the beamwidth. The element space of the array is merely 0.34λ0 (λ0is the wavelength at 28 GHz in free space). U-shaped decoupling structure is introduced between the adjacent element antennas to reduce mutual coupling. The simulated beam scanning ranges from −50° to +50° within 3 dB gain variation, which is suitable for wide-angle scanning applications.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115194637","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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