Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094061
Aleksandar Simovic, S. Jokić, Aleksandar Lemez, Z. Stojkovic
In this article, an improved version of the experimental low voltage distribution network simulator, intended for the analysis of the voltage imbalances and power quality parameters in radial distribution lines is considered. The simulator was developed to perform load balancing in the three-phase power supply system, with the automated low voltage regulating and optimizing transformer, while increasing the voltage conditions stability and energy efficiency. In the paper, different load conditions are analyzed separately with measured values of voltage and current at individual points of the distribution line, without additional voltage regulation.
{"title":"An improved experimental power distribution system simulator for the analysis of power quality parameters","authors":"Aleksandar Simovic, S. Jokić, Aleksandar Lemez, Z. Stojkovic","doi":"10.1109/INFOTEH57020.2023.10094061","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094061","url":null,"abstract":"In this article, an improved version of the experimental low voltage distribution network simulator, intended for the analysis of the voltage imbalances and power quality parameters in radial distribution lines is considered. The simulator was developed to perform load balancing in the three-phase power supply system, with the automated low voltage regulating and optimizing transformer, while increasing the voltage conditions stability and energy efficiency. In the paper, different load conditions are analyzed separately with measured values of voltage and current at individual points of the distribution line, without additional voltage regulation.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116224544","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094084
M. Simić
In this paper a voltage-dip based readout interface of passive LC sensors is presented. Our work includes improvements of the original parallel tuned Colpitts voltage-controlled oscillator (VCO) topology to meet requirements for an interface with passive LC sensors in GHz-range. Our redesign provides stable amplitude of output oscillations independent of the input tune voltage, multichannel operation, and linear range of output frequency (1.5 GHz-1.8 GHz) versus input tune voltage (0 V-15 V). The proposed VCO was implemented as a part of the voltage-dip based readout interface of resonant frequency estimation of passive LC sensors. Conducted analysis showed that the presented readout topology could operate with coupling factors greater than 0.05, and that readout is independent to changes of coupling factor. Additional tests revealed that the proposed topology is sensitive to changes of the resonant frequency greater than 0.187%.
{"title":"A 1.5 GHz-1.8 GHz Voltage Controlled Oscillator for Passive LC Sensors Readout","authors":"M. Simić","doi":"10.1109/INFOTEH57020.2023.10094084","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094084","url":null,"abstract":"In this paper a voltage-dip based readout interface of passive LC sensors is presented. Our work includes improvements of the original parallel tuned Colpitts voltage-controlled oscillator (VCO) topology to meet requirements for an interface with passive LC sensors in GHz-range. Our redesign provides stable amplitude of output oscillations independent of the input tune voltage, multichannel operation, and linear range of output frequency (1.5 GHz-1.8 GHz) versus input tune voltage (0 V-15 V). The proposed VCO was implemented as a part of the voltage-dip based readout interface of resonant frequency estimation of passive LC sensors. Conducted analysis showed that the presented readout topology could operate with coupling factors greater than 0.05, and that readout is independent to changes of coupling factor. Additional tests revealed that the proposed topology is sensitive to changes of the resonant frequency greater than 0.187%.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128970377","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094088
S. Zaharieva, I. Stoev, A. Borodzhieva
The subject of this article is an electronic device based on IoT technology, for the control of relative humidity in a room. The IoT-based electronic device is part of a developed electronic system with implemented algorithms and criteria for providing comfortable conditions in a room. A mobile application has been developed through which remote control of relative humidity is carried out. Research has been done with a dehumidifier, which gives us reason to say that the correct choice of the dehumidifier in relation to the volume of a given room is essential. The obtained results show that the value of the relative humidity in the most severe mode "Long absence" can be reduced to the required values, according to the proposed criteria, within a twenty-four hours period of time.
{"title":"IoT-Based Device for Indoor Premises Relative Humidity Control","authors":"S. Zaharieva, I. Stoev, A. Borodzhieva","doi":"10.1109/INFOTEH57020.2023.10094088","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094088","url":null,"abstract":"The subject of this article is an electronic device based on IoT technology, for the control of relative humidity in a room. The IoT-based electronic device is part of a developed electronic system with implemented algorithms and criteria for providing comfortable conditions in a room. A mobile application has been developed through which remote control of relative humidity is carried out. Research has been done with a dehumidifier, which gives us reason to say that the correct choice of the dehumidifier in relation to the volume of a given room is essential. The obtained results show that the value of the relative humidity in the most severe mode \"Long absence\" can be reduced to the required values, according to the proposed criteria, within a twenty-four hours period of time.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131105561","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094189
Matija Golec, Mihael Gudlin, Petar Gregurić, Miro Hegedic
Quality has been one of the most important factors in the development of any product since the very beginning of the manufacturing industry. Industry 4.0 affected all aspects of the industry, including quality, which resulted in the creation of Quality 4.0. One of the most used technologies for achieving Quality 4.0 is artificial intelligence (AI), which enables more efficient and accurate inspection of products. To facilitate research and teaching in this area, a modular testing system based on computer vision and edge computing was developed. The system is developed according to the currently most frequent use cases, and enables faster and more efficient development, deployment, and testing of AI algorithms.
{"title":"Development of Testing System for the Application of Artificial Intelligence in Quality","authors":"Matija Golec, Mihael Gudlin, Petar Gregurić, Miro Hegedic","doi":"10.1109/INFOTEH57020.2023.10094189","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094189","url":null,"abstract":"Quality has been one of the most important factors in the development of any product since the very beginning of the manufacturing industry. Industry 4.0 affected all aspects of the industry, including quality, which resulted in the creation of Quality 4.0. One of the most used technologies for achieving Quality 4.0 is artificial intelligence (AI), which enables more efficient and accurate inspection of products. To facilitate research and teaching in this area, a modular testing system based on computer vision and edge computing was developed. The system is developed according to the currently most frequent use cases, and enables faster and more efficient development, deployment, and testing of AI algorithms.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127577553","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094182
W.P.J.M. Warnakula, A. Vidanapathirana, Ra Ekanayake, S.S.D.D.B. Senanayake
Renewable energy sources play an important role due to the increasing economic, social, and environmental issues caused by the use of fossil fuels. In this work, wind power can be considered as an effective renewable energy resource. The main objective of this research is to design a micro-scale Horizontal Axis Wind Turbine (HAWT) that may be mounted on rooftops or moving vehicles. The proposed wind turbine model was designed using Q blade software. The five-blade wind turbine was used for the design due to the increased efficiency, especially under low wind speed conditions. Then the wind turbine was validated under varied wind speed conditions. The derived optimum parameters for the five-blade wind turbine were 0.39 m blade length, 0.04 m hub radius, and 6 tip-speed ratio. The wind turbine has a 65W power output, with 0.45 of power coefficient at 6 m/s, wind speed.
{"title":"Design of micro scale wind turbine blade for low wind speed applications","authors":"W.P.J.M. Warnakula, A. Vidanapathirana, Ra Ekanayake, S.S.D.D.B. Senanayake","doi":"10.1109/INFOTEH57020.2023.10094182","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094182","url":null,"abstract":"Renewable energy sources play an important role due to the increasing economic, social, and environmental issues caused by the use of fossil fuels. In this work, wind power can be considered as an effective renewable energy resource. The main objective of this research is to design a micro-scale Horizontal Axis Wind Turbine (HAWT) that may be mounted on rooftops or moving vehicles. The proposed wind turbine model was designed using Q blade software. The five-blade wind turbine was used for the design due to the increased efficiency, especially under low wind speed conditions. Then the wind turbine was validated under varied wind speed conditions. The derived optimum parameters for the five-blade wind turbine were 0.39 m blade length, 0.04 m hub radius, and 6 tip-speed ratio. The wind turbine has a 65W power output, with 0.45 of power coefficient at 6 m/s, wind speed.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131402334","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094118
Parastoo Sadat Hosseinian, S. Ebrahimi, J. Jatskevich
Line-commutated converters (LCCs) and voltage-source converters (VSCs) are widely deployed in HVDC systems. Average-value models (AVMs) of such converters have proven to be numerically efficient for real-time/offline simulation studies where detailed switching models are computationally expensive. However, with a non-iterative solution, the conventional so-called indirectly-interfaced AVMs (IDI-AVMs) may lead to inaccurate or unstable results at large simulation time steps due to the one-time-step delay between the AVM input values and the interfacing variables. In this paper, the AVMs of LCCs and VSCs are directly interfaced with the external system to eliminate the one-time-step interfacing delay. The new directly-interfaced AVMs (DI-AVMs) of LCCs and VSCs are formulated in nodal form, and their resultant matrices are merged into the external system nodal equations. The effectiveness of the presented method is investigated on a hybrid LCC-VSC HVDC system in PSCAD/EMTDC. It is verified that the proposed DI-AVMs are numerically superior and more accurate than the conventional IDI-AVMs and allow simulations with much larger time-step sizes.
{"title":"Average-Value Modeling of Hybrid LCC-VSC HVDC Systems with Direct Interfacing in PSCAD/EMTDC","authors":"Parastoo Sadat Hosseinian, S. Ebrahimi, J. Jatskevich","doi":"10.1109/INFOTEH57020.2023.10094118","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094118","url":null,"abstract":"Line-commutated converters (LCCs) and voltage-source converters (VSCs) are widely deployed in HVDC systems. Average-value models (AVMs) of such converters have proven to be numerically efficient for real-time/offline simulation studies where detailed switching models are computationally expensive. However, with a non-iterative solution, the conventional so-called indirectly-interfaced AVMs (IDI-AVMs) may lead to inaccurate or unstable results at large simulation time steps due to the one-time-step delay between the AVM input values and the interfacing variables. In this paper, the AVMs of LCCs and VSCs are directly interfaced with the external system to eliminate the one-time-step interfacing delay. The new directly-interfaced AVMs (DI-AVMs) of LCCs and VSCs are formulated in nodal form, and their resultant matrices are merged into the external system nodal equations. The effectiveness of the presented method is investigated on a hybrid LCC-VSC HVDC system in PSCAD/EMTDC. It is verified that the proposed DI-AVMs are numerically superior and more accurate than the conventional IDI-AVMs and allow simulations with much larger time-step sizes.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128333764","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094070
Romanela Lajić, P. Matić
Historically, and especially in recent years, there has been a significant need in the industry for powerful actuators in a smaller size, with cost efficiency also being an important factor. Brushless DC motor (BLDC), with higher efficiency than an induction motor, lesser need for maintenance compared to a DC motor, and lower price than an equivalent synchronous motor, has become a particularly popular choice. In the industry the BLDC is very often used as a servo motor for the control of the rotor position angle. In this paper a system for position control of a BLDC, using field oriented control (FOC) is presented. Firstly, the normalized d-q model of the motor and the parameters of the controllers in the system are determined, after which the control system is modelled using MATLAB/Simulink, and the torque and position angle responses are analyzed.
{"title":"Digital Position Control System With a BLDC Motor Using Field Oriented Control","authors":"Romanela Lajić, P. Matić","doi":"10.1109/INFOTEH57020.2023.10094070","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094070","url":null,"abstract":"Historically, and especially in recent years, there has been a significant need in the industry for powerful actuators in a smaller size, with cost efficiency also being an important factor. Brushless DC motor (BLDC), with higher efficiency than an induction motor, lesser need for maintenance compared to a DC motor, and lower price than an equivalent synchronous motor, has become a particularly popular choice. In the industry the BLDC is very often used as a servo motor for the control of the rotor position angle. In this paper a system for position control of a BLDC, using field oriented control (FOC) is presented. Firstly, the normalized d-q model of the motor and the parameters of the controllers in the system are determined, after which the control system is modelled using MATLAB/Simulink, and the torque and position angle responses are analyzed.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"577 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132319683","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094136
B. Krupicz, W. Tarasiuk, V. Barsukov, V. Barsukov, A. Kosarac
In the study an assessment of specific friction forces occurring during the compaction of polytetrafluoroethylene workpieces in a mold was done, based on the analysis of axial and lateral pressures. In addition, an analysis of a compacted workpiece model was performed to predict the pressure distribution over its height. The pressure distributions at the bottom and walls of the mold were determined experimentally. The coincidence of theoretical and experimental values proves the validity of the used calculation formulae. The values of the specific friction forces and coefficients of external friction were determined on the basis of Coulomb’s and Siebel-Prandtl’s laws of friction.
{"title":"Mechanics of polytetrafluoroethylene-based composites densification","authors":"B. Krupicz, W. Tarasiuk, V. Barsukov, V. Barsukov, A. Kosarac","doi":"10.1109/INFOTEH57020.2023.10094136","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094136","url":null,"abstract":"In the study an assessment of specific friction forces occurring during the compaction of polytetrafluoroethylene workpieces in a mold was done, based on the analysis of axial and lateral pressures. In addition, an analysis of a compacted workpiece model was performed to predict the pressure distribution over its height. The pressure distributions at the bottom and walls of the mold were determined experimentally. The coincidence of theoretical and experimental values proves the validity of the used calculation formulae. The values of the specific friction forces and coefficients of external friction were determined on the basis of Coulomb’s and Siebel-Prandtl’s laws of friction.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128479286","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094052
D. Kovacevic
The term "digital content creation" implies the creation of digital content in different textual and/or multimedia forms and formats and its distribution through the Internet. In current literature, it can be noticed that, within English for Specific Purposes (ESP) courses, digital content (except Power Point presentations, often created by students) has been primarily used in the form of teaching tools for different aspects of language knowledge improvement, such as listening, speaking, reading, and writing. In terms of that, the goal of this paper is to demonstrate how the use of the creation of such content in the ESP teaching process, implying not only PowerPoint presentations, but also questionnaires, personal websites, blogs, video presentations, video tutorials and podcasts, can also be beneficial and contribute to various aspects of English language use, comprehension, and overall communication skills.
{"title":"Digital Content Creation as a Part of ESP Courses","authors":"D. Kovacevic","doi":"10.1109/INFOTEH57020.2023.10094052","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094052","url":null,"abstract":"The term \"digital content creation\" implies the creation of digital content in different textual and/or multimedia forms and formats and its distribution through the Internet. In current literature, it can be noticed that, within English for Specific Purposes (ESP) courses, digital content (except Power Point presentations, often created by students) has been primarily used in the form of teaching tools for different aspects of language knowledge improvement, such as listening, speaking, reading, and writing. In terms of that, the goal of this paper is to demonstrate how the use of the creation of such content in the ESP teaching process, implying not only PowerPoint presentations, but also questionnaires, personal websites, blogs, video presentations, video tutorials and podcasts, can also be beneficial and contribute to various aspects of English language use, comprehension, and overall communication skills.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"88 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120852945","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 : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094112
Denis Ceke, Nevzudin Buzađija
The protection and preservation of the privacy of personal data are one of the main requirements when it comes to an application dealing with the processing of such data. It is no different when it comes to information systems that store and process data about students in higher education systems. The public presentation of such data represents a serious threat to the safety of students as well as their status within the higher education system. For this reason, it is necessary to use the possibility of advanced technologies in order to raise data security to the highest level. One such technology that is able to provide transparency, security and data protection at a high level is blockchain technology. In this work, the Hyperledger Fabric distributed ledger private blockchain network was analyzed and its usability in terms of user rights management in higher education system was evaluated. Experimental analysis showed that such a platform has the ability to take advantage of private blockchain technologies in terms of user rights management and to provide security, flexibility and scalability of the system.
{"title":"Intro basics of modeling user rights management for the university diploma issuing process with the support of the Hyperledger Fabric","authors":"Denis Ceke, Nevzudin Buzađija","doi":"10.1109/INFOTEH57020.2023.10094112","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094112","url":null,"abstract":"The protection and preservation of the privacy of personal data are one of the main requirements when it comes to an application dealing with the processing of such data. It is no different when it comes to information systems that store and process data about students in higher education systems. The public presentation of such data represents a serious threat to the safety of students as well as their status within the higher education system. For this reason, it is necessary to use the possibility of advanced technologies in order to raise data security to the highest level. One such technology that is able to provide transparency, security and data protection at a high level is blockchain technology. In this work, the Hyperledger Fabric distributed ledger private blockchain network was analyzed and its usability in terms of user rights management in higher education system was evaluated. Experimental analysis showed that such a platform has the ability to take advantage of private blockchain technologies in terms of user rights management and to provide security, flexibility and scalability of the system.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"143 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113988489","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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