Pub Date : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145088
M. Laciak, J. Kačur, M. Durdán, P. Flegner
This paper describes a system of indirect measurement of the melt temperature in the converter. The system provides continuous measurement of the melt temperature during the steelmaking process. After some time, there is increasing uncertainty of these models. The need for adaptation of the models is necessary, by reason of various technological changes in the steelmaking process. One of the tasks of the adaptation module is an adaptation of the model parameters for indirect measurement of temperature, which should take into account these changes and to contribute to increase the accuracy of the whole system of indirect measurement. Adaptation module also provides additional features such as adaptation of a simulation model of the steelmaking process, data collection into the buffer of melts and selection of optimal model for indirect measurement of the melt temperature for the following melt.
{"title":"System of indirect measurement temperature of melt with adaptation module","authors":"M. Laciak, J. Kačur, M. Durdán, P. Flegner","doi":"10.1109/CARPATHIANCC.2015.7145088","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145088","url":null,"abstract":"This paper describes a system of indirect measurement of the melt temperature in the converter. The system provides continuous measurement of the melt temperature during the steelmaking process. After some time, there is increasing uncertainty of these models. The need for adaptation of the models is necessary, by reason of various technological changes in the steelmaking process. One of the tasks of the adaptation module is an adaptation of the model parameters for indirect measurement of temperature, which should take into account these changes and to contribute to increase the accuracy of the whole system of indirect measurement. Adaptation module also provides additional features such as adaptation of a simulation model of the steelmaking process, data collection into the buffer of melts and selection of optimal model for indirect measurement of the melt temperature for the following melt.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130989932","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145080
A. Koszewnik
The active vibration control system for aluminum plate with SFSF boundary conditions with using piezo-patch actuators is presented in the paper. Piezo-actuators and piezo-sensors are located in opposite site of the plate. Moreover such elements of control system are oriented in their quasi-optimal locations in two perpendicular directions X and Y. The mathematical models of the plate are determined separately for odd and even modes in selected frequency range 10-250 Hz with using Digital Signal Analyzer at the laboratory stand. Such approach allowed us to design two PD control laws for considered models with help Matlab/Simulink software. In the last chapter the experimental tests of the open-loop and closed-loop systems in time and frequency domain are presented. The obtained results have proved that these controllers were designed correctly. Additional damp in the both closed-loop systems cause the excellent vibration reduction in comparison to the open-loop system for the whole mechanical structure.
{"title":"The active vibration control of the smart plate by using piezo-patches","authors":"A. Koszewnik","doi":"10.1109/CARPATHIANCC.2015.7145080","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145080","url":null,"abstract":"The active vibration control system for aluminum plate with SFSF boundary conditions with using piezo-patch actuators is presented in the paper. Piezo-actuators and piezo-sensors are located in opposite site of the plate. Moreover such elements of control system are oriented in their quasi-optimal locations in two perpendicular directions X and Y. The mathematical models of the plate are determined separately for odd and even modes in selected frequency range 10-250 Hz with using Digital Signal Analyzer at the laboratory stand. Such approach allowed us to design two PD control laws for considered models with help Matlab/Simulink software. In the last chapter the experimental tests of the open-loop and closed-loop systems in time and frequency domain are presented. The obtained results have proved that these controllers were designed correctly. Additional damp in the both closed-loop systems cause the excellent vibration reduction in comparison to the open-loop system for the whole mechanical structure.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131904589","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145120
T. Sanislav, G. Mois, L. Miclea
Cyber-Physical Systems (CPSs) represent a new generation of digital systems, where cyber entities and physical devices cooperate towards a set of common goals. The continuously evolving requirements concerning CPSs have led to the necessity of creating a dependability assurance framework. The present paper introduces a methodology for creating a dependability run-time model of CPSs in a dynamic and evolving context. The new model combines ontology development techniques with a fault forecasting analysis process in order to define a dependability domain ontology, which plays a central role in the CPS architecture and drives various aspects of these systems, especially the ones related to system diagnosis. An ontology-driven CPS for environmental monitoring shows how the proposed approach is able to assure system dependability. The environmental monitoring case study CPS in this paper has an open architecture with a high degree of flexibility and scalability, it is composed of wireless sensors nodes for data acquisition and transfer, and it includes the ontology and specific software packages for the CPS proper operation.
{"title":"A new approach towards increasing Cyber-Physical Systems dependability","authors":"T. Sanislav, G. Mois, L. Miclea","doi":"10.1109/CARPATHIANCC.2015.7145120","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145120","url":null,"abstract":"Cyber-Physical Systems (CPSs) represent a new generation of digital systems, where cyber entities and physical devices cooperate towards a set of common goals. The continuously evolving requirements concerning CPSs have led to the necessity of creating a dependability assurance framework. The present paper introduces a methodology for creating a dependability run-time model of CPSs in a dynamic and evolving context. The new model combines ontology development techniques with a fault forecasting analysis process in order to define a dependability domain ontology, which plays a central role in the CPS architecture and drives various aspects of these systems, especially the ones related to system diagnosis. An ontology-driven CPS for environmental monitoring shows how the proposed approach is able to assure system dependability. The environmental monitoring case study CPS in this paper has an open architecture with a high degree of flexibility and scalability, it is composed of wireless sensors nodes for data acquisition and transfer, and it includes the ontology and specific software packages for the CPS proper operation.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134640226","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145104
L. Otte, R. Danel, M. Řepka, V. Vančura, David Johanides
Technological processes in the raw material industry often operate continuously and requirements for high robustness and fail safe operation of the information and control systems are defined for them to fall into the fault-tolerant category. A critical element of fault-tolerant solutions ensures the continuity of data in databases. Data on the course of technological processes assume the nature he of a time series, and in the event of failure, can be attributed to a lack of data distortion in the calculation of trends, trailing averages and calculation balance evaluation. We tested the database mirroring technology in most common database systems (Microsoft SQL Server, MySQL and InterSystems Caché) in the low-price Standard category. The paper elaborates on the results of our testing and provides recommendations as to the use of database mirroring technology in information system solutions for continuous production processes.
{"title":"Comparison of database mirror technologies for use in fault-tolerant information system solutions","authors":"L. Otte, R. Danel, M. Řepka, V. Vančura, David Johanides","doi":"10.1109/CARPATHIANCC.2015.7145104","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145104","url":null,"abstract":"Technological processes in the raw material industry often operate continuously and requirements for high robustness and fail safe operation of the information and control systems are defined for them to fall into the fault-tolerant category. A critical element of fault-tolerant solutions ensures the continuity of data in databases. Data on the course of technological processes assume the nature he of a time series, and in the event of failure, can be attributed to a lack of data distortion in the calculation of trends, trailing averages and calculation balance evaluation. We tested the database mirroring technology in most common database systems (Microsoft SQL Server, MySQL and InterSystems Caché) in the low-price Standard category. The paper elaborates on the results of our testing and provides recommendations as to the use of database mirroring technology in information system solutions for continuous production processes.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134045001","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145106
Marcela Pavlíčková
Area of services is very diversified and supply of restaurant services belongs to the most frequently provided services. Customers around the world are increasingly encountering and using various services in restaurant sector. The literature shows that service quality is closely related to customer satisfaction and customer loyalty. Service quality is an important input to customer satisfaction and trust as one of the important outcomes of service quality models. This article discusses discovering customer satisfaction in the restaurant services.
{"title":"Evaluation of customer satisfaction using the Quality Function Deployment","authors":"Marcela Pavlíčková","doi":"10.1109/CARPATHIANCC.2015.7145106","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145106","url":null,"abstract":"Area of services is very diversified and supply of restaurant services belongs to the most frequently provided services. Customers around the world are increasingly encountering and using various services in restaurant sector. The literature shows that service quality is closely related to customer satisfaction and customer loyalty. Service quality is an important input to customer satisfaction and trust as one of the important outcomes of service quality models. This article discusses discovering customer satisfaction in the restaurant services.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134368337","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145059
D. Fojtik, Petr Podešva, J. Gebauer
The article describes proven methods for MS SQL Server Express which automatically keep the latest data in the primary database, while older data are transferred into dynamically created databases. The system was deployed in Třinecké Železárny a. s. where the data older than 30 days is kept in the primary database, and older data is transferred into databases that were dynamically created for each month of production. Thanks to this method, all databases are smaller than 2 gigabytes, while all data is easily accessible from one SQL Server Express.
本文介绍了MS SQL Server Express的成熟方法，这些方法自动将最新的数据保存在主数据库中，而将旧的数据传输到动态创建的数据库中。系统部署在Třinecké Železárny a.s.中，其中超过30天的数据保存在主数据库中，较旧的数据传输到为每个月的生产动态创建的数据库中。由于这种方法，所有数据库都小于2gb，而所有数据都可以从一个SQL Server Express轻松访问。
{"title":"Storing high volumes of data in MS SQL Server Express","authors":"D. Fojtik, Petr Podešva, J. Gebauer","doi":"10.1109/CARPATHIANCC.2015.7145059","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145059","url":null,"abstract":"The article describes proven methods for MS SQL Server Express which automatically keep the latest data in the primary database, while older data are transferred into dynamically created databases. The system was deployed in Třinecké Železárny a. s. where the data older than 30 days is kept in the primary database, and older data is transferred into databases that were dynamically created for each month of production. Thanks to this method, all databases are smaller than 2 gigabytes, while all data is easily accessible from one SQL Server Express.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128589274","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145119
Farhad Sahami, M. U. Salamci
The paper proposes an approach to decentralized model reference adaptive control (MRAC) design for nonlinear systems. The proposed method is based on State Dependent Riccati Equation (SDRE) approach which is an emerging design technique for the control of nonlinear systems. A nonlinear reference model is used for the adaptive control design. The plant dynamics is assumed to be nonlinear and an adaptation methodology is designed such that response of the nonlinear reference model is followed. The adaptation is performed on a state dependent basis mainly using the adaptation mechanism designed for multi input multi output (MIMO) linear time invariant (LTI) systems. Hence, a state dependent adaptation is included to the existing adaptation mechanism of the MIMO LTI systems giving a similar design approach for the MRAC of nonlinear systems. The proposed methodology is exemplified by using the simulation model of a nonlinear system, showing the effectiveness of the SDRE based MRAC for MIMO nonlinear systems.
{"title":"Decentralized model reference adaptive control design for nonlinear systems; State Dependent Riccati Equation approach","authors":"Farhad Sahami, M. U. Salamci","doi":"10.1109/CARPATHIANCC.2015.7145119","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145119","url":null,"abstract":"The paper proposes an approach to decentralized model reference adaptive control (MRAC) design for nonlinear systems. The proposed method is based on State Dependent Riccati Equation (SDRE) approach which is an emerging design technique for the control of nonlinear systems. A nonlinear reference model is used for the adaptive control design. The plant dynamics is assumed to be nonlinear and an adaptation methodology is designed such that response of the nonlinear reference model is followed. The adaptation is performed on a state dependent basis mainly using the adaptation mechanism designed for multi input multi output (MIMO) linear time invariant (LTI) systems. Hence, a state dependent adaptation is included to the existing adaptation mechanism of the MIMO LTI systems giving a similar design approach for the MRAC of nonlinear systems. The proposed methodology is exemplified by using the simulation model of a nonlinear system, showing the effectiveness of the SDRE based MRAC for MIMO nonlinear systems.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129385655","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145137
M. Tatarko, Ľ. Ovseník, J. Turán
This paper deals with fibreless optical link in combining with Radio Frequency (RF) link. Each of links has advantages which make them convenient for reliable high speed communication link The transmission medium is air for both links. Atmospheric phenomena cause decreasing of transmitted signal in different ways. The fog, dust and small particles are critical parameter for Free Space Optics (FSO) link because they decrease visibility and availability of FSO systems. The dense rain causes attenuation of radio waves. Therefore, it is important to know when and how to do the switching process to maintain high speed data transmission process. There exist several ways, which are described in this paper and one method is used to do switching process in hybrid FSO/RF link at the Technical University's campus of Košice (TUKE).
{"title":"Management of switching in hybrid FSO/RF link","authors":"M. Tatarko, Ľ. Ovseník, J. Turán","doi":"10.1109/CARPATHIANCC.2015.7145137","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145137","url":null,"abstract":"This paper deals with fibreless optical link in combining with Radio Frequency (RF) link. Each of links has advantages which make them convenient for reliable high speed communication link The transmission medium is air for both links. Atmospheric phenomena cause decreasing of transmitted signal in different ways. The fog, dust and small particles are critical parameter for Free Space Optics (FSO) link because they decrease visibility and availability of FSO systems. The dense rain causes attenuation of radio waves. Therefore, it is important to know when and how to do the switching process to maintain high speed data transmission process. There exist several ways, which are described in this paper and one method is used to do switching process in hybrid FSO/RF link at the Technical University's campus of Košice (TUKE).","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897217","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145078
I. Koštial, J. Glocek, P. Palicka, D. Nascak
Caustic and sintered magnesia are the main products of magnesite thermal treatment. Caustic magnesia is generated by decomposition of MgCO3 to MgO and CO2. Sintered magnesia is generated at high temperatures at which a liquid phase is produced. Caustic magnesia is broadly used product. Because of high basicity, MgO is very convenient for reduction of water and environment acidity. The production of caustic magnesia is currently performed in rotary and multistage furnaces. The production in rotary furnaces comes with a high quantity of flue-dust - up to 35 %. The flue-dust consists of calcinated and partially calcinated particles and of magnesite dust particles with a high proportion of MgO. The flue-dust generated by current technology is captured in dust chambers, cyclones and fiber filters. The captured material is partly used for sinter magnesia production. Rest of the material is commercialized as waste with adequate low prices. In the developing technology, dust is separated from flue-gas and is directly treated in the microfluidic furnace. In the present development stage, the mathematical model of microfluidic furnace based on elementary balance method was created. A model adequacy was carried out on experimental furnace. The pilot microfluidic furnace was developed based on the simulations. The experiments of the flue dust calcination of rotary furnace were executed.
{"title":"Simulation analysis of flue-dust thermal treatment in microfluid furnace","authors":"I. Koštial, J. Glocek, P. Palicka, D. Nascak","doi":"10.1109/CARPATHIANCC.2015.7145078","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145078","url":null,"abstract":"Caustic and sintered magnesia are the main products of magnesite thermal treatment. Caustic magnesia is generated by decomposition of MgCO3 to MgO and CO2. Sintered magnesia is generated at high temperatures at which a liquid phase is produced. Caustic magnesia is broadly used product. Because of high basicity, MgO is very convenient for reduction of water and environment acidity. The production of caustic magnesia is currently performed in rotary and multistage furnaces. The production in rotary furnaces comes with a high quantity of flue-dust - up to 35 %. The flue-dust consists of calcinated and partially calcinated particles and of magnesite dust particles with a high proportion of MgO. The flue-dust generated by current technology is captured in dust chambers, cyclones and fiber filters. The captured material is partly used for sinter magnesia production. Rest of the material is commercialized as waste with adequate low prices. In the developing technology, dust is separated from flue-gas and is directly treated in the microfluidic furnace. In the present development stage, the mathematical model of microfluidic furnace based on elementary balance method was created. A model adequacy was carried out on experimental furnace. The pilot microfluidic furnace was developed based on the simulations. The experiments of the flue dust calcination of rotary furnace were executed.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125872075","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 : 2015-05-27DOI: 10.1109/CARPATHIANCC.2015.7145134
P. Šuránek, M. Mahdal, J. Tuma
This paper describes a laboratory model for experiments with an active vibration control. This test rig is consisting of steel cantilever beam connected to aluminium frame in vertical position; stack piezoactuator fixed near clamped end of the cantilever beam and a piezoelectric accelerometer positioned at the free end of the beam. Control algorithm is implemented into digital signal processing system. Experiments with suppression of several vibration modes were performed on this laboratory model.
{"title":"Laboratory model for active vibration control","authors":"P. Šuránek, M. Mahdal, J. Tuma","doi":"10.1109/CARPATHIANCC.2015.7145134","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2015.7145134","url":null,"abstract":"This paper describes a laboratory model for experiments with an active vibration control. This test rig is consisting of steel cantilever beam connected to aluminium frame in vertical position; stack piezoactuator fixed near clamped end of the cantilever beam and a piezoelectric accelerometer positioned at the free end of the beam. Control algorithm is implemented into digital signal processing system. Experiments with suppression of several vibration modes were performed on this laboratory model.","PeriodicalId":187762,"journal":{"name":"Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124329867","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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