Pub Date : 2012-05-16DOI: 10.1109/ECTICON.2012.6254226
P. Kheawchaoom, S. Kittipiyakul, Kannikar Siriwong Na Ayutayay
In this paper, we propose a new time-stable geocast protocol, called iDTSG, for post crash notification in vehicular highway networks. iDTSG is an improvement of the existing DTSG protocol. From ns-3 simulation with realistic channel model and vehicle mobility model, iDTSG achieves almost 100% delivery ratio, similar to DTSG, but at a much lower cost of rebroadcast packets, in low vehicle densities. The results also show that the dynamic estimation of the inter-veicle spacing used in iDTSG performs well.
{"title":"iDTSG time-stable geocast for post crash notification in vehicular highway networks","authors":"P. Kheawchaoom, S. Kittipiyakul, Kannikar Siriwong Na Ayutayay","doi":"10.1109/ECTICON.2012.6254226","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254226","url":null,"abstract":"In this paper, we propose a new time-stable geocast protocol, called iDTSG, for post crash notification in vehicular highway networks. iDTSG is an improvement of the existing DTSG protocol. From ns-3 simulation with realistic channel model and vehicle mobility model, iDTSG achieves almost 100% delivery ratio, similar to DTSG, but at a much lower cost of rebroadcast packets, in low vehicle densities. The results also show that the dynamic estimation of the inter-veicle spacing used in iDTSG performs well.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"18 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":"74794357","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.2012.6254352
N. B. Dev Choudhury, D. Prajapati, R. Kakoti
Electricity tracing can assess the particular impact of a generator or demand on the power system. For each generator, the technique can determine the demands they supply, and likewise, for each demand, the technique can determine the generators who provide physical supply. In addition, the proportion of the total electricity flow in each individual transmission asset can be attributed to either the generators or demands that use the asset. But it is difficult to do so due to the non linear nature of power flow. The Tracing method allows assessment of how much of the power output of a particular generator goes to a particular load. It also allows the assessment of the contribution of individual generators to individual line flows. This paper presents a study of transmission loss allocation using Tracing algorithms. The method can be useful in providing greater insight into power system operation and can be used to modify present tariffs of charging for transmission loss, reactive power and transmission services. Tracing algorithms have been applied and results are presented illustrating flow patterns from generators to demand and patterns of transmission asset usage for a standard 4 bus and IEEE 14 bus system.
{"title":"Identification of transmission loss in trading of power using tracing of power","authors":"N. B. Dev Choudhury, D. Prajapati, R. Kakoti","doi":"10.1109/ECTICON.2012.6254352","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254352","url":null,"abstract":"Electricity tracing can assess the particular impact of a generator or demand on the power system. For each generator, the technique can determine the demands they supply, and likewise, for each demand, the technique can determine the generators who provide physical supply. In addition, the proportion of the total electricity flow in each individual transmission asset can be attributed to either the generators or demands that use the asset. But it is difficult to do so due to the non linear nature of power flow. The Tracing method allows assessment of how much of the power output of a particular generator goes to a particular load. It also allows the assessment of the contribution of individual generators to individual line flows. This paper presents a study of transmission loss allocation using Tracing algorithms. The method can be useful in providing greater insight into power system operation and can be used to modify present tariffs of charging for transmission loss, reactive power and transmission services. Tracing algorithms have been applied and results are presented illustrating flow patterns from generators to demand and patterns of transmission asset usage for a standard 4 bus and IEEE 14 bus system.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"239 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":"74901997","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.2012.6254272
M. Nawong, N. Chuladaycha
This paper presents a simulation study of a fixed frequency state trajectory control technique of the buck converter. That technique regulates the turn-on and turn-off trajectory planes of the controlled switch to achieve optimum dynamic and static performance. The circuit model of buck converter taking into account the effect of the output capacitor equivalent series resistance (ESR) is derived. The theoretical approach is verified by simulation of a 24 V/10 V (40 kHz) buck converter.
{"title":"Simulation study on a fixed-frequency state trajectory control of buck converter","authors":"M. Nawong, N. Chuladaycha","doi":"10.1109/ECTICON.2012.6254272","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254272","url":null,"abstract":"This paper presents a simulation study of a fixed frequency state trajectory control technique of the buck converter. That technique regulates the turn-on and turn-off trajectory planes of the controlled switch to achieve optimum dynamic and static performance. The circuit model of buck converter taking into account the effect of the output capacitor equivalent series resistance (ESR) is derived. The theoretical approach is verified by simulation of a 24 V/10 V (40 kHz) buck converter.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"122 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":"79968975","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.2012.6254235
N. T. Mai, K. Yamada, I. Murakami, Y. Ando, M. Hosoya
In the present paper, we examine the parameterization of all robust stabilizing Internal Model Controllers (IMCs) for multiple-input/multiple-output plants with uncertainties. The parameterization problem is the problem in which all stabilizing controllers for a plant are sought. Since this parameterization can successfully search for all proper stabilizing controllers, it is used as a tool for many control problems. For stable plants, the parameterization of all stabilizing controllers can be represented by the IMC structure. The IMC structure has advantages such as closed-loop stability is assured simply by choosing a stable IMC parameter. Additionally, closed-loop performance characteristics are related directly to controller parameters, which make online tuning of the IMC very convenient. However, there exists a question whether or not, stabilizing controllers for unstable plants can be represented by the IMC structure. The solution to this problem, Morari and Zafiriou, Chen et al. and Mai et al. clarified that any stabilizing controller for unstable plants can be represented by the IMC structure by the parameterization of all stabilizing IMCs for unstable plants. However, their IMCs cannot guarantee the stability of control system for plants with uncertainties. In this paper, we clarify the parameterization of all proper robust stabilizing IMCs for multiple-input/multiple-output plants such that the IMC and the internal model are proper.
{"title":"The parameterization of all robust stabilizing Internal Model Controllers for multiple-input/multiple-output plants","authors":"N. T. Mai, K. Yamada, I. Murakami, Y. Ando, M. Hosoya","doi":"10.1109/ECTICON.2012.6254235","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254235","url":null,"abstract":"In the present paper, we examine the parameterization of all robust stabilizing Internal Model Controllers (IMCs) for multiple-input/multiple-output plants with uncertainties. The parameterization problem is the problem in which all stabilizing controllers for a plant are sought. Since this parameterization can successfully search for all proper stabilizing controllers, it is used as a tool for many control problems. For stable plants, the parameterization of all stabilizing controllers can be represented by the IMC structure. The IMC structure has advantages such as closed-loop stability is assured simply by choosing a stable IMC parameter. Additionally, closed-loop performance characteristics are related directly to controller parameters, which make online tuning of the IMC very convenient. However, there exists a question whether or not, stabilizing controllers for unstable plants can be represented by the IMC structure. The solution to this problem, Morari and Zafiriou, Chen et al. and Mai et al. clarified that any stabilizing controller for unstable plants can be represented by the IMC structure by the parameterization of all stabilizing IMCs for unstable plants. However, their IMCs cannot guarantee the stability of control system for plants with uncertainties. In this paper, we clarify the parameterization of all proper robust stabilizing IMCs for multiple-input/multiple-output plants such that the IMC and the internal model are proper.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"10 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":"78036763","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: 10.37936/ECTI-CIT.201371.54357
T. Hoshikawa, K. Yamada, Y. Tatsumi
When a plant can be stabilized by using a stable controller, the controller is said to be a strongly stabilizing controller. The importance of strong stabilizations is to solve some problems occurred by using unstable stabilizing controllers, for example, feedback control systems become high sensitive for disturbances. Hoshikawa et al. clarified the class of strongly stabilizable plants and proposed the parameterization of all strongly stabilizing controllers for those plants. However, in this parameterization, we cannot specify the input-output characteristic and the feedback characteristic separately. One of the ways to specify these characteristics separately is to use two-degree-of-freedom control system. However, the parameterization of all two-degree-of-freedom strongly stabilizing controllers has not been examined. The purpose of this paper is to propose the parameterization of all two-degree-of-freedom strongly stabilizing controllers for strongly stabilizable plants.
{"title":"The parameterization of all two-degree-of-freedom strongly stabilizing controllers","authors":"T. Hoshikawa, K. Yamada, Y. Tatsumi","doi":"10.37936/ECTI-CIT.201371.54357","DOIUrl":"https://doi.org/10.37936/ECTI-CIT.201371.54357","url":null,"abstract":"When a plant can be stabilized by using a stable controller, the controller is said to be a strongly stabilizing controller. The importance of strong stabilizations is to solve some problems occurred by using unstable stabilizing controllers, for example, feedback control systems become high sensitive for disturbances. Hoshikawa et al. clarified the class of strongly stabilizable plants and proposed the parameterization of all strongly stabilizing controllers for those plants. However, in this parameterization, we cannot specify the input-output characteristic and the feedback characteristic separately. One of the ways to specify these characteristics separately is to use two-degree-of-freedom control system. However, the parameterization of all two-degree-of-freedom strongly stabilizing controllers has not been examined. The purpose of this paper is to propose the parameterization of all two-degree-of-freedom strongly stabilizing controllers for strongly stabilizable plants.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"62 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":"73187168","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.2012.6254343
W. Nathasri, T. Tayjasanant, C. Chamchoy
This paper presents a procedure to select roadway luminaire based on IES and CIE roadway classification. Luminaire performance indices such as utilization factor, efficiency and surrounding ratio are utilized for the selection procedure. The developed program compares these luminaire performance indices and selects the proper luminaire considering lighting criteria. The selected luminaire can be used in the lighting design program such as DIALux program for further roadway lighting design. The developed program can reduce time for roadway luminaire selection. Lower cost and power can also be achieved from the luminaire selection.
{"title":"Roadway luminaire selection based on luminaire performance indices","authors":"W. Nathasri, T. Tayjasanant, C. Chamchoy","doi":"10.1109/ECTICON.2012.6254343","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254343","url":null,"abstract":"This paper presents a procedure to select roadway luminaire based on IES and CIE roadway classification. Luminaire performance indices such as utilization factor, efficiency and surrounding ratio are utilized for the selection procedure. The developed program compares these luminaire performance indices and selects the proper luminaire considering lighting criteria. The selected luminaire can be used in the lighting design program such as DIALux program for further roadway lighting design. The developed program can reduce time for roadway luminaire selection. Lower cost and power can also be achieved from the luminaire selection.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"17 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":"74082661","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.2012.6254312
Pornpawit Boonsrimuang, Panya Jirajaracheep, P. Reangsuntea, P. Boonsrimuang, Hideo Kobayashi
The Partial Transmit Sequence (PTS) method with low computation complexity, called decomposition PTS sub-blocking was proposed which employs the radix-2 inverse fast Fourier transform (IFFT) for the signals at the middle stages of an N-point radix-2 IFFT and decimation in frequency (DIF) domain. This method (DIF-IFFT) can reduce the computation complexity relatively with keeping the better PAPR performance similar to other PTS techniques with using the same weighting factor. To improve computation complexity for the PTS method, the Extended Split-Radix inverse fast Fourier transform (SRIFFT) which can reduces the number of computation complexity was proposed. However, the PAPR reduction performance is the same as that for the radix-2 method. In this paper, we propose a new weighting factor technique in conjunction with DIF-PTS sub-blocking based on Extended Split-Radix IFFT technique called Improve PTS (I-PTS) which can improve both the PAPR performance and computation complexity without any increasing of side information. This paper presents the various computer simulation results to verify the effectiveness of proposed method.
{"title":"A low complexity IPTS-based Extended Split-Radix IFFT for PAPR reduction in OFDM systems","authors":"Pornpawit Boonsrimuang, Panya Jirajaracheep, P. Reangsuntea, P. Boonsrimuang, Hideo Kobayashi","doi":"10.1109/ECTICON.2012.6254312","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254312","url":null,"abstract":"The Partial Transmit Sequence (PTS) method with low computation complexity, called decomposition PTS sub-blocking was proposed which employs the radix-2 inverse fast Fourier transform (IFFT) for the signals at the middle stages of an N-point radix-2 IFFT and decimation in frequency (DIF) domain. This method (DIF-IFFT) can reduce the computation complexity relatively with keeping the better PAPR performance similar to other PTS techniques with using the same weighting factor. To improve computation complexity for the PTS method, the Extended Split-Radix inverse fast Fourier transform (SRIFFT) which can reduces the number of computation complexity was proposed. However, the PAPR reduction performance is the same as that for the radix-2 method. In this paper, we propose a new weighting factor technique in conjunction with DIF-PTS sub-blocking based on Extended Split-Radix IFFT technique called Improve PTS (I-PTS) which can improve both the PAPR performance and computation complexity without any increasing of side information. This paper presents the various computer simulation results to verify the effectiveness of proposed method.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"143 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":"73979063","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.2012.6254113
Sreya Chakraborty, K. R. Rao
The important step in fingerprint matching is the reliable fingerprint recognition. Automatic fingerprint recognition system relies on the input fingerprint for feature extraction. Hence, the effectiveness of feature extraction relies heavily on the quality of input fingerprint images. In this paper adaptive filtering in frequency domain in order to enhance the fingerprint image is proposed. Enhancement of the original fingerprint image is obtained by histogram equalization of the Gabor filtered image.
{"title":"Fingerprint enhancement by directional filtering","authors":"Sreya Chakraborty, K. R. Rao","doi":"10.1109/ECTICON.2012.6254113","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254113","url":null,"abstract":"The important step in fingerprint matching is the reliable fingerprint recognition. Automatic fingerprint recognition system relies on the input fingerprint for feature extraction. Hence, the effectiveness of feature extraction relies heavily on the quality of input fingerprint images. In this paper adaptive filtering in frequency domain in order to enhance the fingerprint image is proposed. Enhancement of the original fingerprint image is obtained by histogram equalization of the Gabor filtered image.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"27 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":"74063738","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.2012.6254255
N. Jiravanstit, S. Chaitusaney
At present, the solar energy is a highly potential alternative for solving the energy crisis and improving system quality. On the other hand, the penetration of PVGS may cause an islanding problem. This paper derives Non Detection Zone (NDZ) of Over/Under voltage and Over/Under frequency method in order to increase accuracy for islanding prevention. In addition to safety issue, this paper proposes the protective device placement for system reliability improvement by using Genetic Algorithm (GA) optimization. The optimization also takes account of islanding prevention as constraint. The proposed method is brought to apply with Tasine 34-bus distribution system, and the simulation results are satisfactory.
{"title":"Protective device placement for reliability improvement by considering anti-islanding protection of PV generation system","authors":"N. Jiravanstit, S. Chaitusaney","doi":"10.1109/ECTICON.2012.6254255","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254255","url":null,"abstract":"At present, the solar energy is a highly potential alternative for solving the energy crisis and improving system quality. On the other hand, the penetration of PVGS may cause an islanding problem. This paper derives Non Detection Zone (NDZ) of Over/Under voltage and Over/Under frequency method in order to increase accuracy for islanding prevention. In addition to safety issue, this paper proposes the protective device placement for system reliability improvement by using Genetic Algorithm (GA) optimization. The optimization also takes account of islanding prevention as constraint. The proposed method is brought to apply with Tasine 34-bus distribution system, and the simulation results are satisfactory.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"36 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":"87681909","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.2012.6254274
Panrawee Kanpan, E. Khansalee, N. Puangngernmak, S. Chalermwisutkul
A 3 GHz TM010 mode cylindrical cavity resonator was designed for measuring complex permittivity of liquid material. To improve the measurement accuracy of cavity perturbation method which occurs from variable size of the samples, the field analysis of TM0n0 cylindrical cavities with two concentric layers of real dielectric at the axis is used. The field analysis method was proposed for calculation of the complex permittivity for liquid material by using the resonant technique. The complex permittivities of distilled water, methanol and ethanol samples were measured. Measured complex permittivity results were compared with the ones acquired by the conventional perturbation method.
{"title":"TM010 mode cylindrical cavity for complex permittivity measurement of liquid using field analysis technique","authors":"Panrawee Kanpan, E. Khansalee, N. Puangngernmak, S. Chalermwisutkul","doi":"10.1109/ECTICON.2012.6254274","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254274","url":null,"abstract":"A 3 GHz TM010 mode cylindrical cavity resonator was designed for measuring complex permittivity of liquid material. To improve the measurement accuracy of cavity perturbation method which occurs from variable size of the samples, the field analysis of TM0n0 cylindrical cavities with two concentric layers of real dielectric at the axis is used. The field analysis method was proposed for calculation of the complex permittivity for liquid material by using the resonant technique. The complex permittivities of distilled water, methanol and ethanol samples were measured. Measured complex permittivity results were compared with the ones acquired by the conventional perturbation method.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"1 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":"90635854","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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