Pub Date : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229643
Lavina Shilpa Stanly, R. Divya, M. Nair
This paper discusses about the active filtering capability that can be incorporated in grid connected photovoltaic systems by proper control of the grid interfacing inverter. Improved Linear Sinusoidal Tracer Algorithm is used for generating the reference signals to control the inverter so that the system feeds the available photovoltaic energy into the grid, provides reactive power compensation and harmonic elimination of the loads connected at the point of common coupling. The controller is tested in MATLAB/SIMULINK for linear and nonlinear loads. The simulation results demonstrate the efficient working of grid connected photovoltaic system as Shunt Active Filter.
{"title":"Grid connected solar photovoltaic system with Shunt Active Filtering capability under transient load conditions","authors":"Lavina Shilpa Stanly, R. Divya, M. Nair","doi":"10.1109/TAPENERGY.2015.7229643","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229643","url":null,"abstract":"This paper discusses about the active filtering capability that can be incorporated in grid connected photovoltaic systems by proper control of the grid interfacing inverter. Improved Linear Sinusoidal Tracer Algorithm is used for generating the reference signals to control the inverter so that the system feeds the available photovoltaic energy into the grid, provides reactive power compensation and harmonic elimination of the loads connected at the point of common coupling. The controller is tested in MATLAB/SIMULINK for linear and nonlinear loads. The simulation results demonstrate the efficient working of grid connected photovoltaic system as Shunt Active Filter.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"100 1","pages":"345-350"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79323318","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229657
Preethy V. Warrier, P. Preetha
Transformers have been one of the greatest inventions in the electrical industry. It helps in transferring energy between two or more circuits through electromagnetic induction. Single phase transformers find applications in domestic appliances because of its simplicity and less cost. They can be used as voltage regulators in television set, as step up and step down transformers in inverters and mobile chargers, respectively. Three phase transformers are used in generation, transmission and distribution of electrical energy. Electromagnetic analysis of the simulated transformer helps in optimizing the transformer design. In this paper, single phase transformer of rating 67kVA 6600/440 V is designed and modeled using Solidworks software. Electromagnetic analysis of the model with normal working condition is done using Electro Magnetics Simulation (EMS) module of the software. AC magnetic study with 50Hz frequency is selected. Parameters like current density, field intensity, and loss density are analyzed. It is observed that results obtained from simulation closely matches with the theoretical values.
{"title":"Electromagnetic analysis of transformer using Solidworks","authors":"Preethy V. Warrier, P. Preetha","doi":"10.1109/TAPENERGY.2015.7229657","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229657","url":null,"abstract":"Transformers have been one of the greatest inventions in the electrical industry. It helps in transferring energy between two or more circuits through electromagnetic induction. Single phase transformers find applications in domestic appliances because of its simplicity and less cost. They can be used as voltage regulators in television set, as step up and step down transformers in inverters and mobile chargers, respectively. Three phase transformers are used in generation, transmission and distribution of electrical energy. Electromagnetic analysis of the simulated transformer helps in optimizing the transformer design. In this paper, single phase transformer of rating 67kVA 6600/440 V is designed and modeled using Solidworks software. Electromagnetic analysis of the model with normal working condition is done using Electro Magnetics Simulation (EMS) module of the software. AC magnetic study with 50Hz frequency is selected. Parameters like current density, field intensity, and loss density are analyzed. It is observed that results obtained from simulation closely matches with the theoretical values.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"20 1","pages":"427-431"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79530685","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229600
Dimna Denny C, M. Shahin
With increase in energy demand, the utilization of renewable energy sources like solar and wind energies become important. Energy Storage Systems (ESS) with bidirectional converters are essential to overcome the intermittent nature of these renewable sources. In this paper a coupled inductor based SEPIC/Zeta bidirectional converter having reduced ripple in output voltage and low voltage stress on switches is presented. This converter is suitable for use in distributed power system. A simulation study is carried out to compare the performance of the converter with and without coupled inductor, also for different values of coupling coefficients. Simulation results confirmed that performance of the modified converter is more reliable for renewable energy storage systems than conventional converters.
{"title":"Analysis of bidirectional SEPIC/Zeta converter with coupled inductor","authors":"Dimna Denny C, M. Shahin","doi":"10.1109/TAPENERGY.2015.7229600","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229600","url":null,"abstract":"With increase in energy demand, the utilization of renewable energy sources like solar and wind energies become important. Energy Storage Systems (ESS) with bidirectional converters are essential to overcome the intermittent nature of these renewable sources. In this paper a coupled inductor based SEPIC/Zeta bidirectional converter having reduced ripple in output voltage and low voltage stress on switches is presented. This converter is suitable for use in distributed power system. A simulation study is carried out to compare the performance of the converter with and without coupled inductor, also for different values of coupling coefficients. Simulation results confirmed that performance of the modified converter is more reliable for renewable energy storage systems than conventional converters.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"391 1","pages":"103-108"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81663585","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229598
R. Deshmukh, D. Talange
Recently, electric vehicles have become the preferable alternative over conventional vehicles because of rise in fuel price and pollution. Wireless charging system can make electric vehicles even more attractive. In this paper, a circuit using inductive power transfer (IPT) technique is proposed to transfer power of 1 kW wirelessly. Contactless coils are designed to operate at frequency of 15 kHz. FEM based results are presented for the same. Electromagnetic circuit is designed to transfer the power over a distance of 10cm with maximum efficiency. A closed loop model is proposed to keep output power constant. The complete system is then simulated and results are presented to analyze the efficiency. The overall efficiency obtained is 88.5 %.
{"title":"Design of 1kW inductive power transfer system for electric vehicle","authors":"R. Deshmukh, D. Talange","doi":"10.1109/TAPENERGY.2015.7229598","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229598","url":null,"abstract":"Recently, electric vehicles have become the preferable alternative over conventional vehicles because of rise in fuel price and pollution. Wireless charging system can make electric vehicles even more attractive. In this paper, a circuit using inductive power transfer (IPT) technique is proposed to transfer power of 1 kW wirelessly. Contactless coils are designed to operate at frequency of 15 kHz. FEM based results are presented for the same. Electromagnetic circuit is designed to transfer the power over a distance of 10cm with maximum efficiency. A closed loop model is proposed to keep output power constant. The complete system is then simulated and results are presented to analyze the efficiency. The overall efficiency obtained is 88.5 %.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"451 1","pages":"93-97"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82924037","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229671
A. Babu, S. Ashok
The vehicle range provided by a fully charged battery module in any electric vehicle is no match to the range provided by the internal combustion engine driven vehicles with full tank gasoline or diesel. This limitation of electric vehicles paved way for the evolution of hybrid electric vehicles. Among the various known architectures for hybrid electric vehicles, the parallel mild hybrid is expected to be the right candidate to be introduced in a developing country. This is because the size of the electric powertrain in such vehicles shall be relatively smaller compared to the other vehicle architectures and hence shall be less costly compared to the electric vehicle or other hybrid electric vehicle configurations. This paper aims at explaining the procedure of deriving a parallel mild hybrid vehicle equivalent to Tata Safari, a passenger vehicle already available in Indian market. The paper also compares the performance specifications of both vehicles and determines the losses in the proposed vehicle during the normal cruising mode and regenerative modes while traversing a typical Indian urban driving cycle and an Indian highway driving cycle.
{"title":"Parallel mild hybrid equivalent to the Tata Safari","authors":"A. Babu, S. Ashok","doi":"10.1109/TAPENERGY.2015.7229671","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229671","url":null,"abstract":"The vehicle range provided by a fully charged battery module in any electric vehicle is no match to the range provided by the internal combustion engine driven vehicles with full tank gasoline or diesel. This limitation of electric vehicles paved way for the evolution of hybrid electric vehicles. Among the various known architectures for hybrid electric vehicles, the parallel mild hybrid is expected to be the right candidate to be introduced in a developing country. This is because the size of the electric powertrain in such vehicles shall be relatively smaller compared to the other vehicle architectures and hence shall be less costly compared to the electric vehicle or other hybrid electric vehicle configurations. This paper aims at explaining the procedure of deriving a parallel mild hybrid vehicle equivalent to Tata Safari, a passenger vehicle already available in Indian market. The paper also compares the performance specifications of both vehicles and determines the losses in the proposed vehicle during the normal cruising mode and regenerative modes while traversing a typical Indian urban driving cycle and an Indian highway driving cycle.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"42 1","pages":"506-510"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88883246","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229609
Priyank Y. Chauhan, K. Sharma
Segmentation is the process by which image is divided in to certain parts or regions in such a way that each part and region share a distinct property in common. This paper compare various segmentation approaches applicable to gray scale images. A comprehensive analysis has been done to choose best power and time efficient scheme from available state of art algorithms. SAD approach along with heuristic based segmentation as well as Fuzzy based clustering methods has been used for Depth estimation of stereo images. A case of selective blurring is also introduced that can be applied to remove undesired portion of images.
{"title":"Estimation of depth in stereo images using hybrid segmentation approaches","authors":"Priyank Y. Chauhan, K. Sharma","doi":"10.1109/TAPENERGY.2015.7229609","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229609","url":null,"abstract":"Segmentation is the process by which image is divided in to certain parts or regions in such a way that each part and region share a distinct property in common. This paper compare various segmentation approaches applicable to gray scale images. A comprehensive analysis has been done to choose best power and time efficient scheme from available state of art algorithms. SAD approach along with heuristic based segmentation as well as Fuzzy based clustering methods has been used for Depth estimation of stereo images. A case of selective blurring is also introduced that can be applied to remove undesired portion of images.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"1864 1","pages":"155-160"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89946660","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229641
P. Anu, R. Divya, M. Nair
Majority of loads connected in the power system are single phase loads. Large concentration of single phase non-linear loads will inject harmonics in to the system and create unbalance in the source current. Most of these loads consume more reactive power and thus increases feeder losses and reduces active power flow capability of the system. In this paper, a STATCOM based controller for a three phase system feeding single phase loads is presented. The objectives of the controller in the system is to compensate the inductive loads to obtain nearly unity power factor, balance the source currents by cancelling the effect of unbalanced loads and to filter out the load harmonic currents in order to form a sinusoidal supply current. Single phase synchronous reference frame theory based algorithm is used for generating the reference source currents. A simulation model of the system is developed in MATLAB SIMULINK and tested with linear and non-linear loads under balanced and unbalanced conditions.
{"title":"STATCOM based controller for a three phase system feeding single phase loads","authors":"P. Anu, R. Divya, M. Nair","doi":"10.1109/TAPENERGY.2015.7229641","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229641","url":null,"abstract":"Majority of loads connected in the power system are single phase loads. Large concentration of single phase non-linear loads will inject harmonics in to the system and create unbalance in the source current. Most of these loads consume more reactive power and thus increases feeder losses and reduces active power flow capability of the system. In this paper, a STATCOM based controller for a three phase system feeding single phase loads is presented. The objectives of the controller in the system is to compensate the inductive loads to obtain nearly unity power factor, balance the source currents by cancelling the effect of unbalanced loads and to filter out the load harmonic currents in order to form a sinusoidal supply current. Single phase synchronous reference frame theory based algorithm is used for generating the reference source currents. A simulation model of the system is developed in MATLAB SIMULINK and tested with linear and non-linear loads under balanced and unbalanced conditions.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"236 1","pages":"333-338"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80349851","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229650
R. Sarath, P. Kanakasabapathy
Residential power systems are getting modernized due to the increased penetration of power electronic systems. Modern nanogrid architectures usually serve to interface both DC as well as AC loads with different kinds of energy resources. This paper proposes a Ćuk-derived hybrid converter (Ćuk-DHC) procured from the conventional Ćuk topology, where the single power electronic switch is replaced with a voltage source inverter bridge network. The resulting converter employs lesser number of switches to produce DC and AC outputs simultaneously. A major advantage of this hybrid converter is that it has immanent shoot-through protection in the inverter stage making it reliable for modern compact smart residential power systems. Moreover, being a derived converter, it holds the advantages that a conventional Ćuk converter possesses. Operating modes and the steady state analysis of the proposed converter have been studied in this paper. A modified unipolar sine pulse width modulation (PWM) technique is used as the control strategy for the operation of the hybrid converter. The characteristics and operation of the proposed converter has been validated through simulation. For improving the output gain factor, a switched inductor cell based modification has been imposed on the hybrid converter to upgrade both dc as well as ac gains and the same has been affirmed via simulation.
{"title":"Hybrid converter based on Ćuk topology to supply both AC and DC loads","authors":"R. Sarath, P. Kanakasabapathy","doi":"10.1109/TAPENERGY.2015.7229650","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229650","url":null,"abstract":"Residential power systems are getting modernized due to the increased penetration of power electronic systems. Modern nanogrid architectures usually serve to interface both DC as well as AC loads with different kinds of energy resources. This paper proposes a Ćuk-derived hybrid converter (Ćuk-DHC) procured from the conventional Ćuk topology, where the single power electronic switch is replaced with a voltage source inverter bridge network. The resulting converter employs lesser number of switches to produce DC and AC outputs simultaneously. A major advantage of this hybrid converter is that it has immanent shoot-through protection in the inverter stage making it reliable for modern compact smart residential power systems. Moreover, being a derived converter, it holds the advantages that a conventional Ćuk converter possesses. Operating modes and the steady state analysis of the proposed converter have been studied in this paper. A modified unipolar sine pulse width modulation (PWM) technique is used as the control strategy for the operation of the hybrid converter. The characteristics and operation of the proposed converter has been validated through simulation. For improving the output gain factor, a switched inductor cell based modification has been imposed on the hybrid converter to upgrade both dc as well as ac gains and the same has been affirmed via simulation.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"58 1","pages":"387-392"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84280268","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229619
N. Kirthika, S. Balamurugan
Existing power grid infrastructure is highly complex owed to huge interconnections of the network. Effective management of loop flows and congestion is one of the primary challenges posed to the utilities. To improve grid utilization and relieve congestion, series compensators are incorporated in transmission lines. High cost, sizing, operating region and effort in switching concerns have limited their deployment in these applications. The concept of transformation ratio based series compensation is proposed as a means to eliminate these obstructions. The series capacitors integrated across transformer of appropriate turns' ratio affords the desired power flow control on the transmission system. This materializes due to change in effective line reactance. Cost effective, automated series compensation is experimented on a 2-bus system and the proposed concept is validated.
{"title":"Series compensators: Application considerations and automated solutions for congestion management","authors":"N. Kirthika, S. Balamurugan","doi":"10.1109/TAPENERGY.2015.7229619","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229619","url":null,"abstract":"Existing power grid infrastructure is highly complex owed to huge interconnections of the network. Effective management of loop flows and congestion is one of the primary challenges posed to the utilities. To improve grid utilization and relieve congestion, series compensators are incorporated in transmission lines. High cost, sizing, operating region and effort in switching concerns have limited their deployment in these applications. The concept of transformation ratio based series compensation is proposed as a means to eliminate these obstructions. The series capacitors integrated across transformer of appropriate turns' ratio affords the desired power flow control on the transmission system. This materializes due to change in effective line reactance. Cost effective, automated series compensation is experimented on a 2-bus system and the proposed concept is validated.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"18 1","pages":"211-216"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82441829","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 : 2015-06-24DOI: 10.1109/TAPENERGY.2015.7229606
Reeni D'Cruz, M. Rajesh
Extraction of maximum power/energy from solar array is a matter of concern, in the panel connected to DC-DC converters, because of the nonlinear characteristics of the PV array. Maximum power point in the i-v characteristics of the array varies with the solar irradiance and temperature. Solar array simulators (SASs) are used to emulate the photovoltaic(PV) panel output under different environmental conditions and to evaluate the dynamic performance of Power Conditioning System(PCS). This paper proposes a half bridge LLC resonant DC-DC converter. This converter has zero voltage turn on of its primary switches thus reducing losses. It also reduces the voltage stress across the resonant capacitor. The output of the converter can be controlled by frequency modulation control.
{"title":"Half bridge LLC resonant DC-DC converter for solar array simulator application","authors":"Reeni D'Cruz, M. Rajesh","doi":"10.1109/TAPENERGY.2015.7229606","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229606","url":null,"abstract":"Extraction of maximum power/energy from solar array is a matter of concern, in the panel connected to DC-DC converters, because of the nonlinear characteristics of the PV array. Maximum power point in the i-v characteristics of the array varies with the solar irradiance and temperature. Solar array simulators (SASs) are used to emulate the photovoltaic(PV) panel output under different environmental conditions and to evaluate the dynamic performance of Power Conditioning System(PCS). This paper proposes a half bridge LLC resonant DC-DC converter. This converter has zero voltage turn on of its primary switches thus reducing losses. It also reduces the voltage stress across the resonant capacitor. The output of the converter can be controlled by frequency modulation control.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"74 1","pages":"138-143"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79854053","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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