Pub Date : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014717
B. Babes, A. Boutaghane, N. Hamouda, Mohamed Mezaache, S. Kahla
In this paper, an adaptive fuzzy fast terminal synergetic voltage control scheme for DC/DC buck converter is proposed based on recently developed synergetic theory and a terminal attractor method. The advantages of presented synergetic control include the characteristics of finite time convergence, insensitive to parameters variation and chattering free phenomena. Rendering the design more robust, fuzzy logic systems are used to approximate the unknown parameters in the proposed controller without calling upon usual model linearization and simplifications. Taking the DC/DC buck converter in continuous conduction mode as an example, the algorithm of proposed synergetic control is analyzed in detail. All the simulation results demonstrate the effectiveness and the high dynamic capability of the proposed AF-FTSC control technique over the FTSC strategy.
{"title":"A Robust Adaptive Fuzzy Fast Terminal Synergetic Voltage Control Scheme for DC/DC Buck Converter","authors":"B. Babes, A. Boutaghane, N. Hamouda, Mohamed Mezaache, S. Kahla","doi":"10.1109/ICAEE47123.2019.9014717","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014717","url":null,"abstract":"In this paper, an adaptive fuzzy fast terminal synergetic voltage control scheme for DC/DC buck converter is proposed based on recently developed synergetic theory and a terminal attractor method. The advantages of presented synergetic control include the characteristics of finite time convergence, insensitive to parameters variation and chattering free phenomena. Rendering the design more robust, fuzzy logic systems are used to approximate the unknown parameters in the proposed controller without calling upon usual model linearization and simplifications. Taking the DC/DC buck converter in continuous conduction mode as an example, the algorithm of proposed synergetic control is analyzed in detail. All the simulation results demonstrate the effectiveness and the high dynamic capability of the proposed AF-FTSC control technique over the FTSC strategy.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126903828","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014840
W. Djerir, A. Allag, T. Boutkedjirt
In this work, the Maximum A Posteriori (MAP) method, is used for defect detection in aluminium by determining the reflectivity sequence of the ultrasonic signal. In numerical simulations, the MAP method is tested under two conditions, when a priori knowledge of the noise and the signal to be deconvolved is available and in the absence of this knowledge. MAP performance is therefore directly related to the signal-to-noise ratio. Correlation coefficients between the reconstructed reflectivity sequence and the original one, $r_{hat{h}h}$, of 0.9155, 0.9880 have been obtained, for SNRs of 60 and 80 dB respectively in the case of the absence of the priori knowledge. Experimentally, the previously developed method has been applied to signals provided from an aluminum part. For this, two near defects of differents depths and positions has been considered. The deconvolution of experimental signals gives good results and allows to correctly locating the defects. However, the peaks of the estimated reflectivity are tinged with oscillations. Indeed, somes information characterizing the input signal is lost due to the limited bandwidth of the filter and because of the random noise affecting the measurements.
{"title":"Defects Localization by a Temporal Maximum A Posteriori Deconvolution Method of Ultrasonic Signals","authors":"W. Djerir, A. Allag, T. Boutkedjirt","doi":"10.1109/ICAEE47123.2019.9014840","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014840","url":null,"abstract":"In this work, the Maximum A Posteriori (MAP) method, is used for defect detection in aluminium by determining the reflectivity sequence of the ultrasonic signal. In numerical simulations, the MAP method is tested under two conditions, when a priori knowledge of the noise and the signal to be deconvolved is available and in the absence of this knowledge. MAP performance is therefore directly related to the signal-to-noise ratio. Correlation coefficients between the reconstructed reflectivity sequence and the original one, $r_{hat{h}h}$, of 0.9155, 0.9880 have been obtained, for SNRs of 60 and 80 dB respectively in the case of the absence of the priori knowledge. Experimentally, the previously developed method has been applied to signals provided from an aluminum part. For this, two near defects of differents depths and positions has been considered. The deconvolution of experimental signals gives good results and allows to correctly locating the defects. However, the peaks of the estimated reflectivity are tinged with oscillations. Indeed, somes information characterizing the input signal is lost due to the limited bandwidth of the filter and because of the random noise affecting the measurements.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131197040","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014704
Abderrahmane Herbadji, N. Guermat, Lahcene Ziet, Mohamed Cheniti
The drawbacks of unimodal biometric systems such as non-universality, noisy sensor data and spoofing can be mitigated using multiple biometric traits. In this study, a novel multibiometric system to authenticate users based on their major knuckle finger patterns using four fingers (i.e., little, ring, middle, and index) and iris is proposed. A local texture descriptor namely binarized statistical image features (BSIF) has been employed to extract the features for each of the biometric traits considered in order to improve biometric-based personal verification. The comparison results on PolyU contactless hand dorsal images database and IIT Delhi-1 iris database indicate that the proposed multibiometric authentication with grouping function based score fusion outperforms the existing transformation-based fusion approaches in literature (e.g., t-norms, symmetric-sum), attaining a correct recognition rate of 95.54%.
{"title":"Multimodal Biometric Verification using the Iris and Major Finger Knuckles","authors":"Abderrahmane Herbadji, N. Guermat, Lahcene Ziet, Mohamed Cheniti","doi":"10.1109/ICAEE47123.2019.9014704","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014704","url":null,"abstract":"The drawbacks of unimodal biometric systems such as non-universality, noisy sensor data and spoofing can be mitigated using multiple biometric traits. In this study, a novel multibiometric system to authenticate users based on their major knuckle finger patterns using four fingers (i.e., little, ring, middle, and index) and iris is proposed. A local texture descriptor namely binarized statistical image features (BSIF) has been employed to extract the features for each of the biometric traits considered in order to improve biometric-based personal verification. The comparison results on PolyU contactless hand dorsal images database and IIT Delhi-1 iris database indicate that the proposed multibiometric authentication with grouping function based score fusion outperforms the existing transformation-based fusion approaches in literature (e.g., t-norms, symmetric-sum), attaining a correct recognition rate of 95.54%.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131563643","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014806
S. Khelladi, K. Saci, A. Hadjadj, A. Ales
This paper aims to depict approach of a Practical design procedure of an (EMI) filter to decrease the electromagnetic interferences induced by a DC-DC converter intended to use in avionic environment and qualifying to the DO-160E class LMH standard (network side), in the frequency band of 150 kHz - 30 MHz. this paper also highlights the impact of intrinsic parasitic elements of the passive components used in the designed filter on its high-frequency behavior. The designed EMI filter is been dedicated for a high-power buck converter operating at a switching frequency of 20 kHz with an output power of 740W. The study of the system composed of The dc-dc converter, the EMI filter, and a line-impedance stabilization network (LISN) is carried out via simulation using high-frequency equivalent model to obtain the conducted emissions (CE) levels of common mode (CM) and Differential mode (DM). Simulations results are provided afterward to evaluate the mitigation performances of the designed EMI filter. then a demonstration of the influence of inherent stray elements of components on the filter performances is presented in the last section of the paper.
{"title":"Design And Behavioral Study Of EMI Filter Intended For Aeronautical Application","authors":"S. Khelladi, K. Saci, A. Hadjadj, A. Ales","doi":"10.1109/ICAEE47123.2019.9014806","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014806","url":null,"abstract":"This paper aims to depict approach of a Practical design procedure of an (EMI) filter to decrease the electromagnetic interferences induced by a DC-DC converter intended to use in avionic environment and qualifying to the DO-160E class LMH standard (network side), in the frequency band of 150 kHz - 30 MHz. this paper also highlights the impact of intrinsic parasitic elements of the passive components used in the designed filter on its high-frequency behavior. The designed EMI filter is been dedicated for a high-power buck converter operating at a switching frequency of 20 kHz with an output power of 740W. The study of the system composed of The dc-dc converter, the EMI filter, and a line-impedance stabilization network (LISN) is carried out via simulation using high-frequency equivalent model to obtain the conducted emissions (CE) levels of common mode (CM) and Differential mode (DM). Simulations results are provided afterward to evaluate the mitigation performances of the designed EMI filter. then a demonstration of the influence of inherent stray elements of components on the filter performances is presented in the last section of the paper.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134352392","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014769
Khedidja Bouras, Abdelhadi Labiad, M. Bouzouad
In this work, we design a multiband frequency metamaterial absorber. The structure is composed of several layers of frequency selective metasurfaces. Each metasurface consists of a periodic arrangement identical unit cells. Each unit cell has two behaviors controlled by an external command system. According to the external command system stats (ON/OFF) the unit cell behaves as a conducting medium or as dielectric medium using these controllable metamaterial layers we can control the frequency band of the absorber structure.
{"title":"Multiband Frequency Metamaterial Absorber","authors":"Khedidja Bouras, Abdelhadi Labiad, M. Bouzouad","doi":"10.1109/ICAEE47123.2019.9014769","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014769","url":null,"abstract":"In this work, we design a multiband frequency metamaterial absorber. The structure is composed of several layers of frequency selective metasurfaces. Each metasurface consists of a periodic arrangement identical unit cells. Each unit cell has two behaviors controlled by an external command system. According to the external command system stats (ON/OFF) the unit cell behaves as a conducting medium or as dielectric medium using these controllable metamaterial layers we can control the frequency band of the absorber structure.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134353822","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014710
F. Bouanaka, A. Boudjadar, S. Rebiai
We are interested in this work by glow surface discharges created in dielectric barrier SDBD. Our SDBD use pulse and rectangular high voltage waveforms to generate atmospheric argon plasma. COMSOL® and Pspice® software are used to perform electrical modeling of the SDBD discharge. The model is about a plane–parallel configuration with a double isolating wall. COMSOL® software is used to simulate and investigate the movement of charged species and the electrical characteristics of the discharge where a high pulsed voltage is supplied to the electrodes. However, Pspice® software is used to explore the electrical characteristics of the proposed equivalent electric circuit of the SDBD considered geometry. A comparison of simulation results obtained by the two softwares is done. It concerns the electrical characteristics of the SDBD created under different waveforms of the applied voltage.
{"title":"Modeling and Electrical Characterization of Atmospheric-Pressure Surface Dielectric Barrier Discharge (SDBD) in Argon","authors":"F. Bouanaka, A. Boudjadar, S. Rebiai","doi":"10.1109/ICAEE47123.2019.9014710","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014710","url":null,"abstract":"We are interested in this work by glow surface discharges created in dielectric barrier SDBD. Our SDBD use pulse and rectangular high voltage waveforms to generate atmospheric argon plasma. COMSOL® and Pspice® software are used to perform electrical modeling of the SDBD discharge. The model is about a plane–parallel configuration with a double isolating wall. COMSOL® software is used to simulate and investigate the movement of charged species and the electrical characteristics of the discharge where a high pulsed voltage is supplied to the electrodes. However, Pspice® software is used to explore the electrical characteristics of the proposed equivalent electric circuit of the SDBD considered geometry. A comparison of simulation results obtained by the two softwares is done. It concerns the electrical characteristics of the SDBD created under different waveforms of the applied voltage.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134268858","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9015184
I. Ameur, A. Benalia
We propose an optimal power management for a standalone microgrid composed of a Photovoltaic array (PV), a Fuel-Cell system (FC) and an electrochemical battery based on the Pontryagin’s Maximum Principle (PMP). The three sources are interfaced in parallel to a common DC-link via DC/DC converters and are designed to meet the load demand especially in areas outside the electricity coverage. The objective of the proposed strategy is to reduce the fuel consumption by making the system operate in its optimal operating point with respect to load demand and weather conditions. Some simulation results are presented to confirm the optimality of the proposed strategy.
{"title":"PMP Based Optimal Power Management of a PV-Fuel-Cell-Battery Hybrid Power Source","authors":"I. Ameur, A. Benalia","doi":"10.1109/ICAEE47123.2019.9015184","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9015184","url":null,"abstract":"We propose an optimal power management for a standalone microgrid composed of a Photovoltaic array (PV), a Fuel-Cell system (FC) and an electrochemical battery based on the Pontryagin’s Maximum Principle (PMP). The three sources are interfaced in parallel to a common DC-link via DC/DC converters and are designed to meet the load demand especially in areas outside the electricity coverage. The objective of the proposed strategy is to reduce the fuel consumption by making the system operate in its optimal operating point with respect to load demand and weather conditions. Some simulation results are presented to confirm the optimality of the proposed strategy.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133252580","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014789
M. Benziada, A. Boubakeur, A. Mekhaldi
This research work presents the influence of the polluting layers deposited on the surface of an insulating barrier on the electric field distribution under AC voltage, in a pointbarrier-plane electrode system. A numerical simulation using COMSOL Multiphysics based on the finite element method was carried out. The influence of a polluted barrier with different volumes conductivities and different diameters of the pollution layer on the electric field is studied. A comparison between a part and a completely polluted insulating barrier is performed. The difference between polluted and conductive barriers in also presented. The obtained results are in good agreement.
{"title":"Investigations of Non-uniform Pollution Impact on Electric Field Distribution in a Point-Barrier-Plane Arrangement under AC Voltage","authors":"M. Benziada, A. Boubakeur, A. Mekhaldi","doi":"10.1109/ICAEE47123.2019.9014789","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014789","url":null,"abstract":"This research work presents the influence of the polluting layers deposited on the surface of an insulating barrier on the electric field distribution under AC voltage, in a pointbarrier-plane electrode system. A numerical simulation using COMSOL Multiphysics based on the finite element method was carried out. The influence of a polluted barrier with different volumes conductivities and different diameters of the pollution layer on the electric field is studied. A comparison between a part and a completely polluted insulating barrier is performed. The difference between polluted and conductive barriers in also presented. The obtained results are in good agreement.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133852089","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9014783
Sara Daoudi, C. Zouaoui, M. C. El-Mezouar, N. Taleb
The K-Means algorithm is one of the most sophisticated and known algorithms for data-clustering. In this study, we will show the K-Means algorithm as it relates to OpenCL, which is a widespread parallel ecosystem that is reliable for processing and mining datasets that are large in scale. Additionally, we propose a comparative study of the three most efficient K-means algorithm implementations: The Lloyd-Forgy’s sequential Method Implementation, a parallel implementation targeting the CPU using OpenMP and finally one of the most complex implementations that uses an OpenCL language. Typically, the measure of performance is done using different data sizes. For large datasets under OpenCL, when comparing the GPU-based parallel algorithm to the CPU-based serial algorithm, the results have shown a good acceleration effect. On the other hand, for small data sets, the OpenMP implementation has turned out to be the best choice.
{"title":"A Comparative study of parallel CPU/GPU implementations of the K-Means Algorithm","authors":"Sara Daoudi, C. Zouaoui, M. C. El-Mezouar, N. Taleb","doi":"10.1109/ICAEE47123.2019.9014783","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9014783","url":null,"abstract":"The K-Means algorithm is one of the most sophisticated and known algorithms for data-clustering. In this study, we will show the K-Means algorithm as it relates to OpenCL, which is a widespread parallel ecosystem that is reliable for processing and mining datasets that are large in scale. Additionally, we propose a comparative study of the three most efficient K-means algorithm implementations: The Lloyd-Forgy’s sequential Method Implementation, a parallel implementation targeting the CPU using OpenMP and finally one of the most complex implementations that uses an OpenCL language. Typically, the measure of performance is done using different data sizes. For large datasets under OpenCL, when comparing the GPU-based parallel algorithm to the CPU-based serial algorithm, the results have shown a good acceleration effect. On the other hand, for small data sets, the OpenMP implementation has turned out to be the best choice.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115025976","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 : 2019-11-01DOI: 10.1109/ICAEE47123.2019.9015115
M. Mellal, Billal Nazim Chebouba
This paper addresses the cost and availability optimization of an overspeed protection system in a power plant. The literature has only treated the reliability or cost of this system as a single-objective. Therefore, the multi-objective optimization problem considering the availability and cost is presented. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) is applied to generate the Pareto front. The numerical results are discussed under two scenarios of minimum allowable availability.
{"title":"Cost and Availability optimization of Overspeed Protection System in a Power Plant","authors":"M. Mellal, Billal Nazim Chebouba","doi":"10.1109/ICAEE47123.2019.9015115","DOIUrl":"https://doi.org/10.1109/ICAEE47123.2019.9015115","url":null,"abstract":"This paper addresses the cost and availability optimization of an overspeed protection system in a power plant. The literature has only treated the reliability or cost of this system as a single-objective. Therefore, the multi-objective optimization problem considering the availability and cost is presented. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) is applied to generate the Pareto front. The numerical results are discussed under two scenarios of minimum allowable availability.","PeriodicalId":197612,"journal":{"name":"2019 International Conference on Advanced Electrical Engineering (ICAEE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115414950","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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