Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726029
D. Dutta, P. Dutta, J. Sil
This paper proposes a weighted (W) k-prototype (KP) Multi Objective Genetic Algorithm (MOGA) (W - KP - MOGA) that can automatically evolve feature weights (based on importance of features in cluster) and clustering solutions. Here we are hybridizing KP with MOGA. Minimization of Homogeneity (H) and maximization of Separation (S) are two measures of optimization. For comparison purpose we have also implemented KP and KP - MOGA. Testing by different real world data set with different clustering validity indices shows the superiority of W - KP - MOGA.
{"title":"Feature weighted clustering of mixed data sets by hybrid evolutionary algorithm","authors":"D. Dutta, P. Dutta, J. Sil","doi":"10.1109/INDCON.2013.6726029","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726029","url":null,"abstract":"This paper proposes a weighted (W) k-prototype (KP) Multi Objective Genetic Algorithm (MOGA) (W - KP - MOGA) that can automatically evolve feature weights (based on importance of features in cluster) and clustering solutions. Here we are hybridizing KP with MOGA. Minimization of Homogeneity (H) and maximization of Separation (S) are two measures of optimization. For comparison purpose we have also implemented KP and KP - MOGA. Testing by different real world data set with different clustering validity indices shows the superiority of W - KP - MOGA.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124846813","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726073
Vijay Kumar Dixit, Rajeev Gupta, K. Pal
This paper presents three voltage-mode first order all pass filters using differential difference current conveyors (DDCC) as the active elements. The first circuit has one DDCC, one capacitor and one grounded resistor. The second circuit also employs one DDCC, one resistor and one grounded capacitor. The third circuit uses two DDCC, one resistor and one capacitor and both the elements are grounded. These circuits have the following advantages: high input impedance, low passive sensitivities and no requirements for component matching conditions and in the third circuit all passive components are grounded and thus it is preferred for integrated circuit implementation. Theoretical results are verified using PSPICE simulation.
{"title":"High-input impedance first order all-pass filters using DDCC","authors":"Vijay Kumar Dixit, Rajeev Gupta, K. Pal","doi":"10.1109/INDCON.2013.6726073","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726073","url":null,"abstract":"This paper presents three voltage-mode first order all pass filters using differential difference current conveyors (DDCC) as the active elements. The first circuit has one DDCC, one capacitor and one grounded resistor. The second circuit also employs one DDCC, one resistor and one grounded capacitor. The third circuit uses two DDCC, one resistor and one capacitor and both the elements are grounded. These circuits have the following advantages: high input impedance, low passive sensitivities and no requirements for component matching conditions and in the third circuit all passive components are grounded and thus it is preferred for integrated circuit implementation. Theoretical results are verified using PSPICE simulation.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132220563","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726131
Sourjya Sarkar, K. S. Rao, Dipanjan Nandi, S. B. S. Kumar
In this paper we explore the performance of multilingual speaker recognition systems developed on the IITKGP-MLILSC speech corpus. Closed-set speaker identification and speaker verification experiments are individually conducted on 13 widely spoken Indian languages. In particular, we focus on the effect of language mismatch in the speaker recognition performance of individual languages and all languages together. The standard GMM-based speaker recognition framework is used. While the average language-independent speaker identification rate is as high as 95.21%, an average equal error rate of 11.71% shows scope for further improvement in speaker verification performance.
{"title":"Multilingual speaker recognition on Indian languages","authors":"Sourjya Sarkar, K. S. Rao, Dipanjan Nandi, S. B. S. Kumar","doi":"10.1109/INDCON.2013.6726131","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726131","url":null,"abstract":"In this paper we explore the performance of multilingual speaker recognition systems developed on the IITKGP-MLILSC speech corpus. Closed-set speaker identification and speaker verification experiments are individually conducted on 13 widely spoken Indian languages. In particular, we focus on the effect of language mismatch in the speaker recognition performance of individual languages and all languages together. The standard GMM-based speaker recognition framework is used. While the average language-independent speaker identification rate is as high as 95.21%, an average equal error rate of 11.71% shows scope for further improvement in speaker verification performance.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133160102","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725942
K. Buch, A. Darji
Modern day radio-telescopes need extremely sensitive receivers combined with powerful signal processing capabilities. Rapid urbanization and proliferation of communication devices has made these telescopes vulnerable to increasingly high levels of Radio Frequency Interference (RFI). This has necessitated development of algorithms for the mitigation of the effects of RFI either in real time or during post processing. The performance of different algorithms can be verified using RFI emulator. The paper proposes a programmable and versatile RFI emulator architecture optimized for hardware platform for generating the signals with different types of interference as received by the wide-band signal processing chain. The design parameters for this RFI emulator have been arrived at as an optimal trade-off between the functional requirements and hardware utilization. The implementation of RFI emulator has been carried out on FPGA and the results of built-in testing of RFI mitigation logic using RFI emulator are provided.
{"title":"FPGA-based emulator for functional verification of radio frequency interference mitigation algorithms","authors":"K. Buch, A. Darji","doi":"10.1109/INDCON.2013.6725942","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725942","url":null,"abstract":"Modern day radio-telescopes need extremely sensitive receivers combined with powerful signal processing capabilities. Rapid urbanization and proliferation of communication devices has made these telescopes vulnerable to increasingly high levels of Radio Frequency Interference (RFI). This has necessitated development of algorithms for the mitigation of the effects of RFI either in real time or during post processing. The performance of different algorithms can be verified using RFI emulator. The paper proposes a programmable and versatile RFI emulator architecture optimized for hardware platform for generating the signals with different types of interference as received by the wide-band signal processing chain. The design parameters for this RFI emulator have been arrived at as an optimal trade-off between the functional requirements and hardware utilization. The implementation of RFI emulator has been carried out on FPGA and the results of built-in testing of RFI mitigation logic using RFI emulator are provided.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133226041","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725980
D. Ananth, G. V. Kumar, T. Gayathri
Rapid reactive power control for Doubly Fed Induction Generator (DFIG) is necessary for stable operation during voltage control and grid fault conditions. This paper examines the performance of DFIG under three cases viz., i) generator speed, ii) reactive power demand from grid and iii) wind speed. Based on the above disturbances, the system performance is analyzed by considering the parameters like rotor speed, generator torque, stator and rotor voltages and powers. It is also aims to explain DFIG as a vital dynamic reactive power source without the use of any additional external reactive power devices. The simulation results illustrate the efficacy and robustness of torque, speed and stator reactive power control for DFIG system by the proposed methodology. The torque surges are minimum even there is sudden change in wind speed, torque ripples and speed surges are not there when there is sudden change in wind speed.
{"title":"Analysis and design of enhanced real and reactive power control schemes for grid connected Doubly Fed Induction Generator","authors":"D. Ananth, G. V. Kumar, T. Gayathri","doi":"10.1109/INDCON.2013.6725980","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725980","url":null,"abstract":"Rapid reactive power control for Doubly Fed Induction Generator (DFIG) is necessary for stable operation during voltage control and grid fault conditions. This paper examines the performance of DFIG under three cases viz., i) generator speed, ii) reactive power demand from grid and iii) wind speed. Based on the above disturbances, the system performance is analyzed by considering the parameters like rotor speed, generator torque, stator and rotor voltages and powers. It is also aims to explain DFIG as a vital dynamic reactive power source without the use of any additional external reactive power devices. The simulation results illustrate the efficacy and robustness of torque, speed and stator reactive power control for DFIG system by the proposed methodology. The torque surges are minimum even there is sudden change in wind speed, torque ripples and speed surges are not there when there is sudden change in wind speed.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133889233","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725914
V. Naidu, Raj Kumar
A compact (25.4mm × 25.4mm) coplanar waveguide fed dual band antenna for GSM/Wi-Fi/ WLAN applications is presented in this paper. The proposed antenna has a simple structure which consists of two asymmetric stepped strips, which is printed on a commercially cheap FR4 substrate. It exhibits dualband operations in the range of 1.2-1.9GHz and 3.5-6GHz with satisfactory radiation properties. The threshold 10-dB return loss bandwidth of the antenna at low-band is 700MHz and high band is 3500MHz. The antenna displays a stable radiation pattern and a moderately high gain of around 1-5 dB in the useful band.
{"title":"Design of miniature CPW-Fed dual band antenna using coupling strips for GSM/Wi-Fi/WLAN applications","authors":"V. Naidu, Raj Kumar","doi":"10.1109/INDCON.2013.6725914","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725914","url":null,"abstract":"A compact (25.4mm × 25.4mm) coplanar waveguide fed dual band antenna for GSM/Wi-Fi/ WLAN applications is presented in this paper. The proposed antenna has a simple structure which consists of two asymmetric stepped strips, which is printed on a commercially cheap FR4 substrate. It exhibits dualband operations in the range of 1.2-1.9GHz and 3.5-6GHz with satisfactory radiation properties. The threshold 10-dB return loss bandwidth of the antenna at low-band is 700MHz and high band is 3500MHz. The antenna displays a stable radiation pattern and a moderately high gain of around 1-5 dB in the useful band.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133397157","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725928
K. N. Nischal, M. P. Nayak, K. Manikantan, S. Ramachandran
The appearance of the face varies drastically when background, pose and illumination change. Variations in these conditions make Face Recognition (FR) an even more challenging and difficult task. In this paper, we propose two novel preprocessing techniques, viz., Entropy Augmented Face Isolation (EAFI) and Image Folding, to improve the performance of the FR system. EAFI is used to localize the face region to minimize the effect of cluttered background, thereby enhancing face recognition. Image Folding uses the property of vertical symmetry in the human face to normalize pose variance. The resulting pre-processed image contains the salient details of the face and prepares the ground for feature extraction. Individual stages of the FR system are examined and an attempt is made to improve each stage. DWT and DCT are used for efficient feature extraction and a Binary Particle Swarm Optimization (BPSO) based feature selection algorithm is used to search the feature space for the optimal feature subset. Experimental results show the promising performance of the proposed techniques for face recognition on three benchmark face databases, namely, Color FERET, CMUPIE and Georgia Tech (GT) databases.
{"title":"Face recognition using entropy-augmented face isolation and image folding as pre-processing techniques","authors":"K. N. Nischal, M. P. Nayak, K. Manikantan, S. Ramachandran","doi":"10.1109/INDCON.2013.6725928","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725928","url":null,"abstract":"The appearance of the face varies drastically when background, pose and illumination change. Variations in these conditions make Face Recognition (FR) an even more challenging and difficult task. In this paper, we propose two novel preprocessing techniques, viz., Entropy Augmented Face Isolation (EAFI) and Image Folding, to improve the performance of the FR system. EAFI is used to localize the face region to minimize the effect of cluttered background, thereby enhancing face recognition. Image Folding uses the property of vertical symmetry in the human face to normalize pose variance. The resulting pre-processed image contains the salient details of the face and prepares the ground for feature extraction. Individual stages of the FR system are examined and an attempt is made to improve each stage. DWT and DCT are used for efficient feature extraction and a Binary Particle Swarm Optimization (BPSO) based feature selection algorithm is used to search the feature space for the optimal feature subset. Experimental results show the promising performance of the proposed techniques for face recognition on three benchmark face databases, namely, Color FERET, CMUPIE and Georgia Tech (GT) databases.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"7 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133622815","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726021
B. Mondal, C. Roychaudhury, J. Das, Sugato Ghosh, H. Saha
We report on the fabrication of pure Zinc Oxide (ZnO) and composite ZnO-SnO2 material based H2 sensor using a simple chemical route. The surface morphology and crystal structure of the samples were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The gas sensing performance of the sensor to Hydrogen in dry air was studied using current-voltage measurements. Selectivity of the sensor against carbon mono-oxide is studied. The obtained result demonstrates a promising approach in the development of low cost selective hydrogen sensor.
{"title":"Enhanced hydrogen sensitivity and selectivity of ZnO-SnO2 based sensor","authors":"B. Mondal, C. Roychaudhury, J. Das, Sugato Ghosh, H. Saha","doi":"10.1109/INDCON.2013.6726021","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726021","url":null,"abstract":"We report on the fabrication of pure Zinc Oxide (ZnO) and composite ZnO-SnO2 material based H2 sensor using a simple chemical route. The surface morphology and crystal structure of the samples were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The gas sensing performance of the sensor to Hydrogen in dry air was studied using current-voltage measurements. Selectivity of the sensor against carbon mono-oxide is studied. The obtained result demonstrates a promising approach in the development of low cost selective hydrogen sensor.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"13 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120983330","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726011
C. Paidimarry, B. P. Kumar, S. Katkoori
The performance of modern integrated circuits is significantly influenced by coupling effects of interconnects. Crosstalk noise must therefore be analyzed in the early stage of design to develop reliable VLSI interconnects. In this paper, we present a closed form crosstalk noise estimation technique to coupled RLC interconnects based on coupled transmission line theory and Fourier series analysis. The salient features of our model include accuracy, computational efficiency and continuous time domain solution. We analyze the impact of finite resistance in coupled RLC interconnects. The nonlinear behavior of the driver (CMOS inverter) is captured well in the proposed model. We introduce a novel technique to model CMOS inverter, namely MRLM (Multiple Ramp Library Model). It replaces the nonlinear driver into its equivalent RC model. The resultant circuit resembles with the simple coupled RLC interconnect in the absence of inverters and hence the same analysis is extended after the replacement. Based on our continuous time defined models, we derive analytical models for delay and energy dissipation due to interconnect. In addition, this work emphasizes on improving the performance namely computational efficiency. Simulations of our analytical models and SPICE are demonstrated by assuming different sets of line parameters. It is shown from the numerical results that our estimates match closely with that of SPICE simulations at a mean estimation error of 2.25 percentage.
{"title":"A novel approach to crosstalk noise analysis in CMOS inverter driven coupled RLC interconnects","authors":"C. Paidimarry, B. P. Kumar, S. Katkoori","doi":"10.1109/INDCON.2013.6726011","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726011","url":null,"abstract":"The performance of modern integrated circuits is significantly influenced by coupling effects of interconnects. Crosstalk noise must therefore be analyzed in the early stage of design to develop reliable VLSI interconnects. In this paper, we present a closed form crosstalk noise estimation technique to coupled RLC interconnects based on coupled transmission line theory and Fourier series analysis. The salient features of our model include accuracy, computational efficiency and continuous time domain solution. We analyze the impact of finite resistance in coupled RLC interconnects. The nonlinear behavior of the driver (CMOS inverter) is captured well in the proposed model. We introduce a novel technique to model CMOS inverter, namely MRLM (Multiple Ramp Library Model). It replaces the nonlinear driver into its equivalent RC model. The resultant circuit resembles with the simple coupled RLC interconnect in the absence of inverters and hence the same analysis is extended after the replacement. Based on our continuous time defined models, we derive analytical models for delay and energy dissipation due to interconnect. In addition, this work emphasizes on improving the performance namely computational efficiency. Simulations of our analytical models and SPICE are demonstrated by assuming different sets of line parameters. It is shown from the numerical results that our estimates match closely with that of SPICE simulations at a mean estimation error of 2.25 percentage.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117348935","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725929
T. J. P. Joy, K. Thirugnanam, Praveen Kumar
This paper describes a multi-point Bidirectional Contactless Charging System (BCCS) in a charging station suitable for electric vehicle and plug-in-hybrid vehicle applications. Battery modules of different ratings, together with their charging interface is connected to their respective charging points through high frequency coreless coils are described. Such type of multilevel configuration is easy to modularize and extend and allows different kinds of batteries to work together. Modeling, design and control aspects of multi-point BCCS system are addressed in detail. A multi-point BCCS system is designed and simulated for a maximum power handling capacity of 200kW and analyzed for vehicle-to-grid and grid-to-vehicle operations.
{"title":"A multi-point Bidirectional Contactless Charging System in a charging station suitable for EVs and PHEVs applications","authors":"T. J. P. Joy, K. Thirugnanam, Praveen Kumar","doi":"10.1109/INDCON.2013.6725929","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725929","url":null,"abstract":"This paper describes a multi-point Bidirectional Contactless Charging System (BCCS) in a charging station suitable for electric vehicle and plug-in-hybrid vehicle applications. Battery modules of different ratings, together with their charging interface is connected to their respective charging points through high frequency coreless coils are described. Such type of multilevel configuration is easy to modularize and extend and allows different kinds of batteries to work together. Modeling, design and control aspects of multi-point BCCS system are addressed in detail. A multi-point BCCS system is designed and simulated for a maximum power handling capacity of 200kW and analyzed for vehicle-to-grid and grid-to-vehicle operations.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115600163","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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