Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254340
S. Butcharoen, C. Pirak
In this paper, we investigate a path selection approach for wireless cooperative multihop communications with one source, one destination, and multiple intermediate relaying nodes, which are clustered linearly. Specifically, we adopt a cooperative maximum ratio combining (C-MRC) technique as a framework for the path selection approach, namely a C-MRC-based approach and a modified C-MRC-based approach. The performance evaluation is performed to measure a bit error rate (BER). Simulation results indicate that the proposed modified C-MRC-based approach is superior to the C-MRC-based approach, in which the SNR gain of 2 dB is observed at BER of 10-4.
{"title":"C-MRC-based path selection approach for cooperative multihop communications","authors":"S. Butcharoen, C. Pirak","doi":"10.1109/ECTICON.2012.6254340","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254340","url":null,"abstract":"In this paper, we investigate a path selection approach for wireless cooperative multihop communications with one source, one destination, and multiple intermediate relaying nodes, which are clustered linearly. Specifically, we adopt a cooperative maximum ratio combining (C-MRC) technique as a framework for the path selection approach, namely a C-MRC-based approach and a modified C-MRC-based approach. The performance evaluation is performed to measure a bit error rate (BER). Simulation results indicate that the proposed modified C-MRC-based approach is superior to the C-MRC-based approach, in which the SNR gain of 2 dB is observed at BER of 10-4.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"24 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81623034","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254227
J. Prabket, W. Itthikusaman, A. Poyai
The current-voltage (I-V) and capacitance-voltage (C-V) measurements of Aluminum (Al) Schottky contacts on undoped and platinum-doped NTD n-Silicon were carried out in the temperature range of 300-420 K. The I-V and C-V characteristics were used to extract the saturation current, the ideality factor and the Schottky barrier height of the diodes. These parameters were correlated to the defect levels generated by the Pt in silicon. The results show that the saturation current of Pt doped diode is reduced and the Schottky barrier height of the diode is higher than from that of the diodes fabricated on undoped silicon diodes. This high value of the Schottky barrier height shows that Pt in silicon creates donor levels in the energy gap that compensate electrons to reduce the conductivity of the material. Such the Pt doped diodes have been found to perform better as low loss rectifiers due to there have less leakage current than undoped devices.
{"title":"Evaluation of Schottky barrier parameters of Al Schottky contacts on platinum doped n-silicon","authors":"J. Prabket, W. Itthikusaman, A. Poyai","doi":"10.1109/ECTICON.2012.6254227","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254227","url":null,"abstract":"The current-voltage (I-V) and capacitance-voltage (C-V) measurements of Aluminum (Al) Schottky contacts on undoped and platinum-doped NTD n-Silicon were carried out in the temperature range of 300-420 K. The I-V and C-V characteristics were used to extract the saturation current, the ideality factor and the Schottky barrier height of the diodes. These parameters were correlated to the defect levels generated by the Pt in silicon. The results show that the saturation current of Pt doped diode is reduced and the Schottky barrier height of the diode is higher than from that of the diodes fabricated on undoped silicon diodes. This high value of the Schottky barrier height shows that Pt in silicon creates donor levels in the energy gap that compensate electrons to reduce the conductivity of the material. Such the Pt doped diodes have been found to perform better as low loss rectifiers due to there have less leakage current than undoped devices.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"33 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81642687","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254304
C. Munyuen, P. Buasri
This paper presents the simulation of a battery capacity for midsize plug-in hybrid electric vehicle (PHEV). The driving cycles are based on two drive schedules; the urban dynamometer driving schedule (UDDS) and Khon Kaen urban driving schedule (KKUDS) drive cycles. The model consists of mathematics equations for PHEV and it is simulated in MATLAB. As the results, battery capacity can be determined for the midsize car as desired.
{"title":"Battery capacity of midsize PHEV for different driving schedules","authors":"C. Munyuen, P. Buasri","doi":"10.1109/ECTICON.2012.6254304","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254304","url":null,"abstract":"This paper presents the simulation of a battery capacity for midsize plug-in hybrid electric vehicle (PHEV). The driving cycles are based on two drive schedules; the urban dynamometer driving schedule (UDDS) and Khon Kaen urban driving schedule (KKUDS) drive cycles. The model consists of mathematics equations for PHEV and it is simulated in MATLAB. As the results, battery capacity can be determined for the midsize car as desired.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"59 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83991241","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254211
A. Suchato, S. Chanjaradwichai, N. Kertkeidkachorn, S. Vorapatratorn, P. Hirankan, T. Suri, K. Likitsupin, S. Chuetanapinyo, P. Punyabukkana
Modern speech recognition techniques rely on large amount of speech data whose acoustic characteristics match with the operating environments to train their acoustic models. Gathering training data from loudspeakers playing recorded speech utterances are far more practical than from human speakers. This paper presents results from speech recognition experiments providing practical insights on effects caused by utterances re-recorded form loudspeakers. A clean-speech corpus of sixty human speakers was built using two different microphones and their playbacks were re-recorded. Results show that, with minimal lexical constraints, accuracies degraded for playback-trained system, even with no mismatches between training and test data. However, mismatches did not affect cases with tighter high-level constraints, such as number and limited-vocabulary word recognitions. A procedure to reduce mismatches caused by constructing corpus from playbacks was introduced. The procedure was shown to make the accuracy of a playback-trained system 48% closer to the one of the system trained with speech in matched environment.
{"title":"Effects of acoustic mismatches on speech recognition accuracies due to playback-recorded speech corpus","authors":"A. Suchato, S. Chanjaradwichai, N. Kertkeidkachorn, S. Vorapatratorn, P. Hirankan, T. Suri, K. Likitsupin, S. Chuetanapinyo, P. Punyabukkana","doi":"10.1109/ECTICON.2012.6254211","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254211","url":null,"abstract":"Modern speech recognition techniques rely on large amount of speech data whose acoustic characteristics match with the operating environments to train their acoustic models. Gathering training data from loudspeakers playing recorded speech utterances are far more practical than from human speakers. This paper presents results from speech recognition experiments providing practical insights on effects caused by utterances re-recorded form loudspeakers. A clean-speech corpus of sixty human speakers was built using two different microphones and their playbacks were re-recorded. Results show that, with minimal lexical constraints, accuracies degraded for playback-trained system, even with no mismatches between training and test data. However, mismatches did not affect cases with tighter high-level constraints, such as number and limited-vocabulary word recognitions. A procedure to reduce mismatches caused by constructing corpus from playbacks was introduced. The procedure was shown to make the accuracy of a playback-trained system 48% closer to the one of the system trained with speech in matched environment.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"30 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82578127","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254150
A. M. J. Marindra, S. Promwong, J. Takada
A lot of Ultra Wideband (UWB) antenna designs, especially printed antenna, have been proposed so far. However, among those proposed designs, only single unit antenna analysis i.e. return loss and radiation pattern at particular frequencies are usually observed. This paper reports a deeper transmission analysis by considering UWB antenna as a system; so called system characterization. For a specific case, a pair of UWB printed monopole antenna with known single unit antenna performance was used for this study. Two-identical-antenna system was measured with Vector Network Analyzer (VNA), then its system transfer function, group delay, and waveform distortion are investigated. The results show that even the single unit antenna performance looks good enough but not so that well when the antenna is considered as a system. Nonlinear transfer function and group delay at some frequency ranges inflicts distortion in the waveform transmission which is crucial for UWB impulse radio scheme. Antenna performance evaluation in this study is provided in the term of its distortion by showing pattern of correlation between the transmitted and the received waveform.
{"title":"Performance evaluation of Ultra Wideband printed antenna by system characterization","authors":"A. M. J. Marindra, S. Promwong, J. Takada","doi":"10.1109/ECTICON.2012.6254150","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254150","url":null,"abstract":"A lot of Ultra Wideband (UWB) antenna designs, especially printed antenna, have been proposed so far. However, among those proposed designs, only single unit antenna analysis i.e. return loss and radiation pattern at particular frequencies are usually observed. This paper reports a deeper transmission analysis by considering UWB antenna as a system; so called system characterization. For a specific case, a pair of UWB printed monopole antenna with known single unit antenna performance was used for this study. Two-identical-antenna system was measured with Vector Network Analyzer (VNA), then its system transfer function, group delay, and waveform distortion are investigated. The results show that even the single unit antenna performance looks good enough but not so that well when the antenna is considered as a system. Nonlinear transfer function and group delay at some frequency ranges inflicts distortion in the waveform transmission which is crucial for UWB impulse radio scheme. Antenna performance evaluation in this study is provided in the term of its distortion by showing pattern of correlation between the transmitted and the received waveform.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"20 4 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81050733","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254265
U. Kongmuang, R. Wongsan
This paper presents a 1×4 asymmetric Y-shaped slit loaded microstrip array antenna. The antenna consists of a rectangular patch with four asymmetric Y-shaped slits at the patch corners and a double thickness of FR4 substrate. This antenna will be most utilized in WLAN applications. A modified array antenna configuration is proposed radiation pattern and gain characteristics to enhancement. The radiation patterns adjusting of antenna array are improved by array element spacing from λ/2 down to λ/3. In addition, position and size of slit loads on each of some patches in antenna array can adjust for good directive radiation pattern. The simulation results of the radiation pattern, reflection coefficient magnitude are verified by IE3D software. Result good agreement between our simulation and the measurement. Consequently, this proposed antenna array is appropriate for multiband wireless communications.
{"title":"Investigated gain and radiation pattern of array antenna with asymmetric y-shaped slit loads MSA","authors":"U. Kongmuang, R. Wongsan","doi":"10.1109/ECTICON.2012.6254265","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254265","url":null,"abstract":"This paper presents a 1×4 asymmetric Y-shaped slit loaded microstrip array antenna. The antenna consists of a rectangular patch with four asymmetric Y-shaped slits at the patch corners and a double thickness of FR4 substrate. This antenna will be most utilized in WLAN applications. A modified array antenna configuration is proposed radiation pattern and gain characteristics to enhancement. The radiation patterns adjusting of antenna array are improved by array element spacing from λ/2 down to λ/3. In addition, position and size of slit loads on each of some patches in antenna array can adjust for good directive radiation pattern. The simulation results of the radiation pattern, reflection coefficient magnitude are verified by IE3D software. Result good agreement between our simulation and the measurement. Consequently, this proposed antenna array is appropriate for multiband wireless communications.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"112 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90471492","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254184
Y. Kanthaphayao, U. Kamnarn, V. Chunkag
This paper presents a redundant operation of a modular three-phase AC/DC converter based on a distributed control method. For the flexibility and redundant operation purpose, each converter module employs an individual controller to control the power converter operation. The mathematical model to design the output voltage control is described in this paper. The performance evaluation was conducted via a four-module of a single phase CUK AC/DC converter, with a -48V DC output voltage and a 750W load. The proposed system is verified by simulations using MATLAB/Simulink. The system has achieved as the following: a tight output voltage regulation, a current sharing of each module is quite good, and a redundant operation of the system can be operated through the distributed control.
{"title":"Redundant operation with a distributed control for a modular three-phase AC/DC converter","authors":"Y. Kanthaphayao, U. Kamnarn, V. Chunkag","doi":"10.1109/ECTICON.2012.6254184","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254184","url":null,"abstract":"This paper presents a redundant operation of a modular three-phase AC/DC converter based on a distributed control method. For the flexibility and redundant operation purpose, each converter module employs an individual controller to control the power converter operation. The mathematical model to design the output voltage control is described in this paper. The performance evaluation was conducted via a four-module of a single phase CUK AC/DC converter, with a -48V DC output voltage and a 750W load. The proposed system is verified by simulations using MATLAB/Simulink. The system has achieved as the following: a tight output voltage regulation, a current sharing of each module is quite good, and a redundant operation of the system can be operated through the distributed control.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"54 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90547388","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254218
S. Chansareewittaya, P. Jirapong
In this paper, hybrid tabu search and simulated annealing (TSSA) with search space managing methods are proposed to determine the optimal number and allocation of unified power flow controller (UPFC) to enhance power transfer capability of power transactions between generators and loads in power systems. Particular optimal allocation includes optimal locations and parameter settings. The objective function is formulated as maximizing total transfer capability (TTC). Power transfer capability determinations are calculated based on the optimal power flow (OPF) technique. Split and non-split search space managing methods are used to improve the solution searching capability. Test results on IEEE 118-bus system show that the proposed hybrid TSSA with optimal number of UPFC criteria and the split search space managing method give higher than those from non-split search space method.
{"title":"Total transfer capability enhancement with optimal number of UPFC using hybrid TSSA","authors":"S. Chansareewittaya, P. Jirapong","doi":"10.1109/ECTICON.2012.6254218","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254218","url":null,"abstract":"In this paper, hybrid tabu search and simulated annealing (TSSA) with search space managing methods are proposed to determine the optimal number and allocation of unified power flow controller (UPFC) to enhance power transfer capability of power transactions between generators and loads in power systems. Particular optimal allocation includes optimal locations and parameter settings. The objective function is formulated as maximizing total transfer capability (TTC). Power transfer capability determinations are calculated based on the optimal power flow (OPF) technique. Split and non-split search space managing methods are used to improve the solution searching capability. Test results on IEEE 118-bus system show that the proposed hybrid TSSA with optimal number of UPFC criteria and the split search space managing method give higher than those from non-split search space method.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"173 3","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91440196","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254241
T. Suwanasri, C. Suwanasri
To minimize maintenance cost, the optimum number of items kept in stock needs primary concern, especially high voltage equipment in electrical system. This paper proposes the method to optimize number of spare parts for effective inventory control. By using Pareto analysis, components of power transformer in the stock are classified into ABC classes. Class A means the few most expensive ones that need special care. Class B means ordinary ones that need standard care. Class C means the large number of cheap items that need little care. Since class A items occupy most of the total inventory cost, the optimum number of class A items, which are bushing and arrester, is of prime interest and can be determined from the failure records of power transformer's components by applying statistical distribution techniques. Therefore, the proposed method can effectively reduce the total inventory cost and can also apply with the other high voltage equipment in the system.
{"title":"Inventory management for high voltage equipment using statistical distribution techniques","authors":"T. Suwanasri, C. Suwanasri","doi":"10.1109/ECTICON.2012.6254241","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254241","url":null,"abstract":"To minimize maintenance cost, the optimum number of items kept in stock needs primary concern, especially high voltage equipment in electrical system. This paper proposes the method to optimize number of spare parts for effective inventory control. By using Pareto analysis, components of power transformer in the stock are classified into ABC classes. Class A means the few most expensive ones that need special care. Class B means ordinary ones that need standard care. Class C means the large number of cheap items that need little care. Since class A items occupy most of the total inventory cost, the optimum number of class A items, which are bushing and arrester, is of prime interest and can be determined from the failure records of power transformer's components by applying statistical distribution techniques. Therefore, the proposed method can effectively reduce the total inventory cost and can also apply with the other high voltage equipment in the system.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"156 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75972551","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 : 2012-05-16DOI: 10.1109/ECTICON.2012.6254129
M. Akbari, M. Delshad
In this Paper, a new nonisolated single switch DC-DC converter with high voltage gain is proposed. The proposed converter introduced a hybrid switched capacitor technique for providing high voltage gain without high switch duty cycle. Also an auxiliary circuit has been applied to the proposed converter for providing soft switching condition. This circuit consists of two coupled inductor and one diode. Therefore converter switch is turned on under ZCS condition. The other advantages of the proposed converter are continuous input/output current, simple structure and PWM control. The principle of operation in continuous conduction mode (CCM) is analyzed. The proposed converter is simulated by PSPICE for confirming the results of theoretical analysis.
{"title":"A new soft single switch step-up DC-DC converter","authors":"M. Akbari, M. Delshad","doi":"10.1109/ECTICON.2012.6254129","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254129","url":null,"abstract":"In this Paper, a new nonisolated single switch DC-DC converter with high voltage gain is proposed. The proposed converter introduced a hybrid switched capacitor technique for providing high voltage gain without high switch duty cycle. Also an auxiliary circuit has been applied to the proposed converter for providing soft switching condition. This circuit consists of two coupled inductor and one diode. Therefore converter switch is turned on under ZCS condition. The other advantages of the proposed converter are continuous input/output current, simple structure and PWM control. The principle of operation in continuous conduction mode (CCM) is analyzed. The proposed converter is simulated by PSPICE for confirming the results of theoretical analysis.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"96 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76705197","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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