Pub Date : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537332
Igor Kotenko, I. Parashchuk
The issues of using fuzzy algorithms and fuzzy predicates in the process of evaluating information security indicators of industrial automation systems are considered. This approach makes it possible to increase the reliability of decision-making on the values of specific evaluated information security indicators, taking into account the uncertainty (fuzziness) of observation data. The concepts of a fuzzy algorithm, a fuzzy predicate, a fuzzy number and a fuzzy operator, their role and interrelation in the problems of accounting for the fuzzy conditions for evaluating (measuring, modeling and observing) information security indicators are discussed. The features of the use of fuzzy algorithms and predicates for problems of this class are determined, the results of experimental calculations are described. It allow, as an example, one to judge on the degree of belongingness of the final evaluation of a specific indicator of information security for industrial automation systems to the set of true verified values of this indicator.
{"title":"Evaluation of Information Security of Industrial Automation Systems Using Fuzzy Algorithms and Predicates","authors":"Igor Kotenko, I. Parashchuk","doi":"10.1109/RusAutoCon52004.2021.9537332","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537332","url":null,"abstract":"The issues of using fuzzy algorithms and fuzzy predicates in the process of evaluating information security indicators of industrial automation systems are considered. This approach makes it possible to increase the reliability of decision-making on the values of specific evaluated information security indicators, taking into account the uncertainty (fuzziness) of observation data. The concepts of a fuzzy algorithm, a fuzzy predicate, a fuzzy number and a fuzzy operator, their role and interrelation in the problems of accounting for the fuzzy conditions for evaluating (measuring, modeling and observing) information security indicators are discussed. The features of the use of fuzzy algorithms and predicates for problems of this class are determined, the results of experimental calculations are described. It allow, as an example, one to judge on the degree of belongingness of the final evaluation of a specific indicator of information security for industrial automation systems to the set of true verified values of this indicator.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128727315","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537530
K. Kostromitin, B. N. Dokuchaev, D. A. Kozlov
An applied problem associated with the development of a comprehensive information protection system (computational algorithm) in a local computer network is to ensure information security of specific nodes of this network, information in which is of some value to their owner, due to its unknown to third parties, for example, information constituting trade secrets. In this case, a certain computational algorithm (computational function) acts as the protected information, with the help of which it is possible to perform a unique transformation of a specific input parameter, or data set, into an output value - the final result of the algorithm. At the same time, the input and output information, as well as information circulating outside the boundaries of the algorithm, is of no value to the user of this LAN, therefore, is not subject to protection.
{"title":"Implementation of a System for Protecting a Computational Algorithm Using a Local Network of Personal Computers","authors":"K. Kostromitin, B. N. Dokuchaev, D. A. Kozlov","doi":"10.1109/RusAutoCon52004.2021.9537530","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537530","url":null,"abstract":"An applied problem associated with the development of a comprehensive information protection system (computational algorithm) in a local computer network is to ensure information security of specific nodes of this network, information in which is of some value to their owner, due to its unknown to third parties, for example, information constituting trade secrets. In this case, a certain computational algorithm (computational function) acts as the protected information, with the help of which it is possible to perform a unique transformation of a specific input parameter, or data set, into an output value - the final result of the algorithm. At the same time, the input and output information, as well as information circulating outside the boundaries of the algorithm, is of no value to the user of this LAN, therefore, is not subject to protection.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128641330","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537374
L. Chernenkaya, E. N. Desyatirikova, A. V. Rechinskii
This paper discusses issues dedicated to the person’s identity defining. Biometric identification of a person, contrary to established stereotypes, is required not only in criminology, where it has been used initially. Methods applied for persons’ identification differ in the complexity of implementation, the time needed to receive a result (system response) after the identification procedure, and, most importantly, the reliability of obtained results. Biometric identification methods provide the maximal authenticity, and are based on the recognition of biometric data of a particular person, which include physiological data (static) and behavioral data (recognized in dynamics). Objectives of the research are: choice of the identification method based on the conducted analysis that is the most applicable for operational person’s identification within given restrictions, and the description of the biometric identification system realization based on computer vision. The development of the simple and operative system is described, and results are demonstrated.
{"title":"Realization of Computer Vision System for Biometric Identification of Personality","authors":"L. Chernenkaya, E. N. Desyatirikova, A. V. Rechinskii","doi":"10.1109/RusAutoCon52004.2021.9537374","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537374","url":null,"abstract":"This paper discusses issues dedicated to the person’s identity defining. Biometric identification of a person, contrary to established stereotypes, is required not only in criminology, where it has been used initially. Methods applied for persons’ identification differ in the complexity of implementation, the time needed to receive a result (system response) after the identification procedure, and, most importantly, the reliability of obtained results. Biometric identification methods provide the maximal authenticity, and are based on the recognition of biometric data of a particular person, which include physiological data (static) and behavioral data (recognized in dynamics). Objectives of the research are: choice of the identification method based on the conducted analysis that is the most applicable for operational person’s identification within given restrictions, and the description of the biometric identification system realization based on computer vision. The development of the simple and operative system is described, and results are demonstrated.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124557645","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537329
I. Bochkarev, V. Khramshin, Kasymbek K. Kelebaev, Jalalidin T. Galbaev
The paper is concerned with transient processes taking place in electromechanical brake units depending on their control circuit. Laws of current and electromagnet flux linkage variation were considered in various operating modes taking into account armature movement behavior. The research group developed and analyzed a brake unit mathematical model in the form of a differential equation system taking into account its design features and operating modes. The mathematical model was used to develop brake unit simulation models in Simulink environment for various control circuits including the one with forced opening of the brake friction unit. The simulation models were used to investigate the transient processes in the brake unit depending on the change in its parameters and some recommendations were given on the choice of the most appropriate forcing schemes.
{"title":"Investigation of Transient Processes in Electromechanical Brake Units Taking into Account Armature Movement Behavior","authors":"I. Bochkarev, V. Khramshin, Kasymbek K. Kelebaev, Jalalidin T. Galbaev","doi":"10.1109/RusAutoCon52004.2021.9537329","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537329","url":null,"abstract":"The paper is concerned with transient processes taking place in electromechanical brake units depending on their control circuit. Laws of current and electromagnet flux linkage variation were considered in various operating modes taking into account armature movement behavior. The research group developed and analyzed a brake unit mathematical model in the form of a differential equation system taking into account its design features and operating modes. The mathematical model was used to develop brake unit simulation models in Simulink environment for various control circuits including the one with forced opening of the brake friction unit. The simulation models were used to investigate the transient processes in the brake unit depending on the change in its parameters and some recommendations were given on the choice of the most appropriate forcing schemes.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129641090","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537361
A. Salomatin, A. Iskhakov, R. Meshcheryakov
Present research studies the formation of a digital footprint based on the characteristics of computer hardware to identify APCS users. The authors of the article propose to form a digital footprint from significant static and dynamic hardware characteristics. The main elements of the system and their functionality are reviewed, and the characteristic features are noted. In addition to the selection of characteristics based on analysis, selection is carried out based on a computational experiment, which consists in testing the hardware components of a computer using tests of various types. The effective types of tests are determined that can be carried out and provide the desired level of uniqueness of the dynamic hardware performance associated with the stability index. The results of the article, obtained by the authors, could be used in future works, both for improving and generalizing theoretical results, and for practical application in the problem of identifying APCS users.
{"title":"Formation of a Digital Footprint Based on the Characteristics of Computer Hardware to Identity APCS Users","authors":"A. Salomatin, A. Iskhakov, R. Meshcheryakov","doi":"10.1109/RusAutoCon52004.2021.9537361","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537361","url":null,"abstract":"Present research studies the formation of a digital footprint based on the characteristics of computer hardware to identify APCS users. The authors of the article propose to form a digital footprint from significant static and dynamic hardware characteristics. The main elements of the system and their functionality are reviewed, and the characteristic features are noted. In addition to the selection of characteristics based on analysis, selection is carried out based on a computational experiment, which consists in testing the hardware components of a computer using tests of various types. The effective types of tests are determined that can be carried out and provide the desired level of uniqueness of the dynamic hardware performance associated with the stability index. The results of the article, obtained by the authors, could be used in future works, both for improving and generalizing theoretical results, and for practical application in the problem of identifying APCS users.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114308217","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537476
V. Desnitsky
The paper proposes a new approach to designing a software for Digital City systems. These systems are built on the basis of wireless sensor networks and implement Internet of Things as a Service (IoTaaS) concept. The approach is based on a proposed knowledge model of distributed systems for design and testing of devices in the Digital City. This approach comprises a specific service-oriented architecture and software prototypes of design and testing tools. The suggested approach increases the automation level of the development process of such systems. It will contribute to reducing time of the development process and operating costs of the developers. The peculiarities of the approach include the use of rules for the interconnection of particular hardware units, on the one hand, and ways of software devices modeling, on the other. Besides, the originality is in application of specific Digital City services by using virtualization tools.
{"title":"IoTaaS based Approach to Design of a WSN for Secure Smart City Monitoring","authors":"V. Desnitsky","doi":"10.1109/RusAutoCon52004.2021.9537476","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537476","url":null,"abstract":"The paper proposes a new approach to designing a software for Digital City systems. These systems are built on the basis of wireless sensor networks and implement Internet of Things as a Service (IoTaaS) concept. The approach is based on a proposed knowledge model of distributed systems for design and testing of devices in the Digital City. This approach comprises a specific service-oriented architecture and software prototypes of design and testing tools. The suggested approach increases the automation level of the development process of such systems. It will contribute to reducing time of the development process and operating costs of the developers. The peculiarities of the approach include the use of rules for the interconnection of particular hardware units, on the one hand, and ways of software devices modeling, on the other. Besides, the originality is in application of specific Digital City services by using virtualization tools.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121439136","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537368
K. Charafeddine, Y. Ryzhkova, S. Tsyruk
Currently, wind energy occupies an important position in the world, which leads to a significant increase in the demand for wind turbines. Inexpensive power converters of energy, fast microprocessors, and automatic control of technological processes have made it possible to produce a high-tech wind turbine that can work efficiently in the power system, as well as in isolated remote areas. This article discusses the use of a wind turbine with an asynchronous generator, which has improved the performance of the turbine through mathematical modeling and confirmation of the results by experimental work. Also, a method has been developed to control the rotational speed of a generator with a wound rotor, based on the additional resistance in the rotor circuit and using a voltage rectifier and a chopper. The torque-speed characteristics of the induction generator were obtained for different rotor resistance values and similarly, characteristics of a turbine with a power of 1500 watts were obtained by pitch angle control.
{"title":"Rotor Resistance Control of a Wound Induction Generator for wind Turbine with Blade Actuator","authors":"K. Charafeddine, Y. Ryzhkova, S. Tsyruk","doi":"10.1109/RusAutoCon52004.2021.9537368","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537368","url":null,"abstract":"Currently, wind energy occupies an important position in the world, which leads to a significant increase in the demand for wind turbines. Inexpensive power converters of energy, fast microprocessors, and automatic control of technological processes have made it possible to produce a high-tech wind turbine that can work efficiently in the power system, as well as in isolated remote areas. This article discusses the use of a wind turbine with an asynchronous generator, which has improved the performance of the turbine through mathematical modeling and confirmation of the results by experimental work. Also, a method has been developed to control the rotational speed of a generator with a wound rotor, based on the additional resistance in the rotor circuit and using a voltage rectifier and a chopper. The torque-speed characteristics of the induction generator were obtained for different rotor resistance values and similarly, characteristics of a turbine with a power of 1500 watts were obtained by pitch angle control.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132617239","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537378
A. Kazakov
The relevance of the work is due to the need to select an effective cooling system for a small-sized electric motor. The aim of the work is to determine the efficiency of various structures and liquid cooling systems using numerical experiments, to determine the required operating mode for the given heat generation conditions of the electric motor, to select the required refrigerant and the geometry of the cooling jacket channel. The following research methods were applied: numerical modeling of the process of a complex three-dimensional non-isothermal coolant flow using the finite element method and the Ansys software package. As a result, a mathematical model of a non-isothermal flow was developed in a three-dimensional formulation; the rational geometry of the cooling jacket of the electric motor is proposed and substantiated; the effectiveness of the use of various refrigerants has been evaluated; determined the technological dependences of the efficiency of the cooling system.
{"title":"Modeling the Cooling System of a Small Electric Motor","authors":"A. Kazakov","doi":"10.1109/RusAutoCon52004.2021.9537378","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537378","url":null,"abstract":"The relevance of the work is due to the need to select an effective cooling system for a small-sized electric motor. The aim of the work is to determine the efficiency of various structures and liquid cooling systems using numerical experiments, to determine the required operating mode for the given heat generation conditions of the electric motor, to select the required refrigerant and the geometry of the cooling jacket channel. The following research methods were applied: numerical modeling of the process of a complex three-dimensional non-isothermal coolant flow using the finite element method and the Ansys software package. As a result, a mathematical model of a non-isothermal flow was developed in a three-dimensional formulation; the rational geometry of the cooling jacket of the electric motor is proposed and substantiated; the effectiveness of the use of various refrigerants has been evaluated; determined the technological dependences of the efficiency of the cooling system.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"51 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131073713","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537347
I. Shishkin, A. N. Grekov
This paper presents a modified image and video analysis model designed to detect nonhomogeneity and anomalies in the marine environment. Unlike known alternatives, the model can detect natural objects after being trained on scarce data and having access to limited computational resources, in anomalous visual monitoring data collected directly in the marine environment. Accuracy in terms of type I and II errors has been improved by implementing additional preprocessing using intelligent anomaly detection and elimination methods. Requirements for the diversity of training sets have been lowered significantly, whilst the use of invariant metrics with adaptive thresholds improves detection adequacy in cases of affine distortions of scaling and rotation of monitored objects. The paper further compares the results of numerical experiments run on real-world data of in-situ monitoring of marine objects.
{"title":"Development of Image Analysis Methods for Detecting Nonhomogeneity and Anomalies in the Marine Environment","authors":"I. Shishkin, A. N. Grekov","doi":"10.1109/RusAutoCon52004.2021.9537347","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537347","url":null,"abstract":"This paper presents a modified image and video analysis model designed to detect nonhomogeneity and anomalies in the marine environment. Unlike known alternatives, the model can detect natural objects after being trained on scarce data and having access to limited computational resources, in anomalous visual monitoring data collected directly in the marine environment. Accuracy in terms of type I and II errors has been improved by implementing additional preprocessing using intelligent anomaly detection and elimination methods. Requirements for the diversity of training sets have been lowered significantly, whilst the use of invariant metrics with adaptive thresholds improves detection adequacy in cases of affine distortions of scaling and rotation of monitored objects. The paper further compares the results of numerical experiments run on real-world data of in-situ monitoring of marine objects.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134647005","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 : 2021-09-05DOI: 10.1109/RusAutoCon52004.2021.9537393
O. Lauta, I. Saenko, Igor Kotenko
One of the main tasks in organizing the protection of computer networks from cyber attacks is to ensure the management of the protection system. Management includes obtaining information about the state of the protection system, analyzing the information received, developing and executing a solution, as well as implementing control actions on all network protective components. The paper discusses possible variants of models of the control system for the computer network protection system in the context of cyber attacks. Depending on the peculiarities for functioning of the control system of the computer network protection system, one or another controllability function can be selected. The parameters of the model should be determined in advance, so that the model adequately describes the activities of the control system of this class in solving problems in conditions of cyber attacks. The indicator for the effectiveness of the control system of the protection system is substantiated - the probability of an error-free and timely decision-making in time, which determines the cyber resilience of the network as a whole. The adequacy of the developed models has been experimentally confirmed.
{"title":"Increasing the Reliability of Computer Network Protection System by Analyzing its Controllability Models","authors":"O. Lauta, I. Saenko, Igor Kotenko","doi":"10.1109/RusAutoCon52004.2021.9537393","DOIUrl":"https://doi.org/10.1109/RusAutoCon52004.2021.9537393","url":null,"abstract":"One of the main tasks in organizing the protection of computer networks from cyber attacks is to ensure the management of the protection system. Management includes obtaining information about the state of the protection system, analyzing the information received, developing and executing a solution, as well as implementing control actions on all network protective components. The paper discusses possible variants of models of the control system for the computer network protection system in the context of cyber attacks. Depending on the peculiarities for functioning of the control system of the computer network protection system, one or another controllability function can be selected. The parameters of the model should be determined in advance, so that the model adequately describes the activities of the control system of this class in solving problems in conditions of cyber attacks. The indicator for the effectiveness of the control system of the protection system is substantiated - the probability of an error-free and timely decision-making in time, which determines the cyber resilience of the network as a whole. The adequacy of the developed models has been experimentally confirmed.","PeriodicalId":106150,"journal":{"name":"2021 International Russian Automation Conference (RusAutoCon)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124237595","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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