Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130344
P. Pavlásek
This paper describes a research project of the design and implementation of modular education model and creative project support of technical faculty automotive/mobility students key competences improvement that involves intentions of the University of Zilina, a science, education and research institution. Improving the faculty education environment, particularly those that are automotive/mobility engineering-performing includes requirements that are effectively adopted to assess targeted goals for 21st century technical graduates’ key competences. This work, obtaining automotive/mobility and academic area experts contributions by using project research findings, students´ outcomes and instructors´ feedback with the probability of adjusting module´s learning content and learning/teaching methods at the same time is aimed. This research focused upon qualitative synthesis methods to investigate faculty experiences with modular teaching/learning concept implementation. In particular, the study used an interpretive approach to synthesize findings from 7 experimental pilot student’s groups conducted by 12 researchers involving teachers-practitioners to learning content modules review, students´ learning outcomes portfolio assessments and interviews with 100 faculty students with modular teaching/learning experiences in the period of 2017-2019. In this article, the author identifies handful research results of innovative competency-based concept in modular education model that can help to achieve the goal that all graduates from technical faculty are well-prepared for further long-life learning, successful careers, and flexible adaptation in the society. First, a competency-based concept is built to reflect the core elements of engineering education programs and practices that have been shown to be effective in student’s pilot groups engaged in perspective study programs (electronics, autotronics). Second, modules design-cycle testing is used to allow the modules to be revised in ways that adapt it to a particular engineering learning content in specific technical skills implementing support of activity, innovation and cooperation. Third, a project researchers and education practitioner’s partnership in creative projects for individual students targeted to automotive/mobility is employed that strives to both take advantage of and build faculty didactics knowledge management ownership and teachers expertise.
{"title":"Competency-based automotive/mobility engineering education: Implementation of creative project in modular model","authors":"P. Pavlásek","doi":"10.1109/ELEKTRO49696.2020.9130344","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130344","url":null,"abstract":"This paper describes a research project of the design and implementation of modular education model and creative project support of technical faculty automotive/mobility students key competences improvement that involves intentions of the University of Zilina, a science, education and research institution. Improving the faculty education environment, particularly those that are automotive/mobility engineering-performing includes requirements that are effectively adopted to assess targeted goals for 21st century technical graduates’ key competences. This work, obtaining automotive/mobility and academic area experts contributions by using project research findings, students´ outcomes and instructors´ feedback with the probability of adjusting module´s learning content and learning/teaching methods at the same time is aimed. This research focused upon qualitative synthesis methods to investigate faculty experiences with modular teaching/learning concept implementation. In particular, the study used an interpretive approach to synthesize findings from 7 experimental pilot student’s groups conducted by 12 researchers involving teachers-practitioners to learning content modules review, students´ learning outcomes portfolio assessments and interviews with 100 faculty students with modular teaching/learning experiences in the period of 2017-2019. In this article, the author identifies handful research results of innovative competency-based concept in modular education model that can help to achieve the goal that all graduates from technical faculty are well-prepared for further long-life learning, successful careers, and flexible adaptation in the society. First, a competency-based concept is built to reflect the core elements of engineering education programs and practices that have been shown to be effective in student’s pilot groups engaged in perspective study programs (electronics, autotronics). Second, modules design-cycle testing is used to allow the modules to be revised in ways that adapt it to a particular engineering learning content in specific technical skills implementing support of activity, innovation and cooperation. Third, a project researchers and education practitioner’s partnership in creative projects for individual students targeted to automotive/mobility is employed that strives to both take advantage of and build faculty didactics knowledge management ownership and teachers expertise.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121280685","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130298
L. Hargaš, O. Hock, D. Koniar, A. Simonová, T. Uriča
The paper describes the methodology of applying the adhesive to the edges of the power module. We bring a possibility how to use 3-axis robotic arm DOBOT Magician for printing masks from user defined raster images or application of specified substance (glue, silicone…) onto printing surface. The robotic arm DOBOT controlled by a camera system ensures the application of the adhesive. We use LabVIEW development environment for image processing. We further describe the control methodology of robotic arm using edge detection. In conclusion, we focus on the comparison of line tracking methods in terms of redundancy of robotic arm movements and their optimization.
{"title":"Aplying specified substance using robotic arm","authors":"L. Hargaš, O. Hock, D. Koniar, A. Simonová, T. Uriča","doi":"10.1109/ELEKTRO49696.2020.9130298","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130298","url":null,"abstract":"The paper describes the methodology of applying the adhesive to the edges of the power module. We bring a possibility how to use 3-axis robotic arm DOBOT Magician for printing masks from user defined raster images or application of specified substance (glue, silicone…) onto printing surface. The robotic arm DOBOT controlled by a camera system ensures the application of the adhesive. We use LabVIEW development environment for image processing. We further describe the control methodology of robotic arm using edge detection. In conclusion, we focus on the comparison of line tracking methods in terms of redundancy of robotic arm movements and their optimization.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128058549","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130228
B. Dobrucký, S. Kaščák, M. Praženica, P. Resutík
The paper deals with modelling and simulation of a direct-controlled [3x5] matrix converter (MxC) supplying 5-phase IM. Because of existence basically two manners of a control of matrix converter are possible, the analyzed direct method is compared to indirect controlled one with regarding to a five-phase output of MxC. As an output of the converter is supposed a 5-phase induction motor whose winding can be in star-, pentagon- and pentacle connection. Simulation results are given at the end of the paper.
{"title":"Direct controlled [3x5] matrix converter supplying 5-phase pentacle IM","authors":"B. Dobrucký, S. Kaščák, M. Praženica, P. Resutík","doi":"10.1109/ELEKTRO49696.2020.9130228","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130228","url":null,"abstract":"The paper deals with modelling and simulation of a direct-controlled [3x5] matrix converter (MxC) supplying 5-phase IM. Because of existence basically two manners of a control of matrix converter are possible, the analyzed direct method is compared to indirect controlled one with regarding to a five-phase output of MxC. As an output of the converter is supposed a 5-phase induction motor whose winding can be in star-, pentagon- and pentacle connection. Simulation results are given at the end of the paper.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"355 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132759093","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130123
A. Merfeldas, D. Andriukaitis, D. Gailius, A. Valinevicius, V. Markevičius, D. Navikas, M. Zilys
This paper investigates GTEM cell field uniformity and provides TEM mode verification for GTEM 1000 cell in the frequency range from 30 MHz to 1000 MHz. Field uniformity is essential in electromagnetic compatibility immunity tests. Uneven field distribution might lead to test mistakes and decrease measurement accuracy. Verification of TEM mode and field uniformity provides good representation of cell manufacturing quality, materials and structure imperfections or defects. GTEM cell capabilities for device under test size limits could be expanded knowing exact field distribution and uniformity at the reference plane.
{"title":"Field Uniformity and TEM Mode Verification in GTEM 1000 Cell","authors":"A. Merfeldas, D. Andriukaitis, D. Gailius, A. Valinevicius, V. Markevičius, D. Navikas, M. Zilys","doi":"10.1109/ELEKTRO49696.2020.9130123","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130123","url":null,"abstract":"This paper investigates GTEM cell field uniformity and provides TEM mode verification for GTEM 1000 cell in the frequency range from 30 MHz to 1000 MHz. Field uniformity is essential in electromagnetic compatibility immunity tests. Uneven field distribution might lead to test mistakes and decrease measurement accuracy. Verification of TEM mode and field uniformity provides good representation of cell manufacturing quality, materials and structure imperfections or defects. GTEM cell capabilities for device under test size limits could be expanded knowing exact field distribution and uniformity at the reference plane.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133338336","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130311
S. Foti, A. Testa, S. de Caro, G. Scelba, G. Scarcella
Temperature monitoring is a major issue in induction motor drives, because temperature variations with the working conditions may affect the machine lifetime and the control performance as well. The paper presents a technique for on-line monitoring the rotor and stator temperature on field oriented induction motor drives, based on a new approach to estimate the rotor time constant and stator winding resistance. The proposed approach exploits the injection of small additional current signals to extract the thermal status of the electrical machine, without affecting the normal drive operation. Moreover, it does not require other transducers than those normally already present in a standard field oriented controlled drive and can be applied on both conventional and sensorless induction motor drives. The stator and rotor temperature estimation can be used either to prevent dangerous overheating, either to on-line tuning the control system. The practical effectiveness of the proposed approach is demonstrated by simulations.
{"title":"Sensorless Rotor and Stator Temperature Estimation in Induction Motor Drives","authors":"S. Foti, A. Testa, S. de Caro, G. Scelba, G. Scarcella","doi":"10.1109/ELEKTRO49696.2020.9130311","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130311","url":null,"abstract":"Temperature monitoring is a major issue in induction motor drives, because temperature variations with the working conditions may affect the machine lifetime and the control performance as well. The paper presents a technique for on-line monitoring the rotor and stator temperature on field oriented induction motor drives, based on a new approach to estimate the rotor time constant and stator winding resistance. The proposed approach exploits the injection of small additional current signals to extract the thermal status of the electrical machine, without affecting the normal drive operation. Moreover, it does not require other transducers than those normally already present in a standard field oriented controlled drive and can be applied on both conventional and sensorless induction motor drives. The stator and rotor temperature estimation can be used either to prevent dangerous overheating, either to on-line tuning the control system. The practical effectiveness of the proposed approach is demonstrated by simulations.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115678607","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130333
I. Melo, G. Tarjányiová, M. Gintner, N. Tarjányi
Laboratory exercises play a key role in demonstrating the importance of measurement in physics and engineering to students. If properly designed, the students can benefit from them enormously. We describe our reform of the Electricity and Magnetism Laboratory and how the electrical engineering students evaluated it.
{"title":"A reform of laboratory exercises in electricity and magnetism","authors":"I. Melo, G. Tarjányiová, M. Gintner, N. Tarjányi","doi":"10.1109/ELEKTRO49696.2020.9130333","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130333","url":null,"abstract":"Laboratory exercises play a key role in demonstrating the importance of measurement in physics and engineering to students. If properly designed, the students can benefit from them enormously. We describe our reform of the Electricity and Magnetism Laboratory and how the electrical engineering students evaluated it.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114460964","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130328
A. Richter, Ž. Ferková, J. Morava
The study deals with the electromagnetic interferences (EMI) of the human hearth system with cardiac implantable electronic devices (CIEDs). The preliminary fundamental theory is put on complete electrotechnical description of low-frequency, slow changing magnetism in human with CIEDs. Theory parallels Energy Conservation Principle with Maxwell description and its possibility of using. The aim is to define electromagnetic interference (EMI) and its limits of the cardiac system inclusive CIEDs peacemakers. We point to possible risks of electromagnetic interaction and discuss mechanisms that can influence the CIEDs sensitivity. This paper implies methods of modelling and simulation useful for clinical research in cardio stimulation with respect new trends of power electronic in electromobility.
{"title":"Low-dynamic Electromagnetic Interaction of Cardiac System with Implanted Pacemakers, Introduction of Physical Aspects from View of Modelling and Simulation in Clinical Research Applications","authors":"A. Richter, Ž. Ferková, J. Morava","doi":"10.1109/ELEKTRO49696.2020.9130328","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130328","url":null,"abstract":"The study deals with the electromagnetic interferences (EMI) of the human hearth system with cardiac implantable electronic devices (CIEDs). The preliminary fundamental theory is put on complete electrotechnical description of low-frequency, slow changing magnetism in human with CIEDs. Theory parallels Energy Conservation Principle with Maxwell description and its possibility of using. The aim is to define electromagnetic interference (EMI) and its limits of the cardiac system inclusive CIEDs peacemakers. We point to possible risks of electromagnetic interaction and discuss mechanisms that can influence the CIEDs sensitivity. This paper implies methods of modelling and simulation useful for clinical research in cardio stimulation with respect new trends of power electronic in electromobility.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116138724","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130317
N. Kopylova
The main idea of the chosen topic is that the development of an information system will allow to unify the methodological and technological approach to the learning process, simplify and facilitate the educational process of students, increase their number, thereby increasing the intensity of education and student interest, as well as reduce the burden on teachers of this discipline. The basic definitions such as distance educational technologies, e-learning, distance learning are considered in the article, their advantages are determined. The paper presents the development and creation of an information system for teaching and controlling students in English in the educational program "Information science and computer engineering", based on the modern technologies for developing web applications, the purpose and main problems are defined. To build an information system, we selected a network client — server model that has two-tier architecture. Charts of the use variants have been developed regarding the roles of Administrator-Teacher and User-Student. A.s a result of the subject area analysis. The main functions of the application and the navigation map, which are designed to display a holistic script for a web application, which allows you to see the general logic of the application and understand its basic structure are given. The paper describes the results of work with this information system in details.
{"title":"The Development of an Information System for Technical University Students’ Teaching and Control in English","authors":"N. Kopylova","doi":"10.1109/ELEKTRO49696.2020.9130317","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130317","url":null,"abstract":"The main idea of the chosen topic is that the development of an information system will allow to unify the methodological and technological approach to the learning process, simplify and facilitate the educational process of students, increase their number, thereby increasing the intensity of education and student interest, as well as reduce the burden on teachers of this discipline. The basic definitions such as distance educational technologies, e-learning, distance learning are considered in the article, their advantages are determined. The paper presents the development and creation of an information system for teaching and controlling students in English in the educational program \"Information science and computer engineering\", based on the modern technologies for developing web applications, the purpose and main problems are defined. To build an information system, we selected a network client — server model that has two-tier architecture. Charts of the use variants have been developed regarding the roles of Administrator-Teacher and User-Student. A.s a result of the subject area analysis. The main functions of the application and the navigation map, which are designed to display a holistic script for a web application, which allows you to see the general logic of the application and understand its basic structure are given. The paper describes the results of work with this information system in details.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116168976","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130318
Filip Vaverka, M. Labuda, M. Gála
This paper describes a system design for testing implantable devices, namely pacemakers, that measures selected pacemaker parameters to indicate their proper functionality or potential malfunction. The resulting signals are interpreted and plotted using the programming interface of MATLAB. The efficiency of the resulting wiring is tested on real pacemakers and compared to the values of commercial programmers. The system is designed for easy and universal measurement of pacemaker parameters for learning purposes in the teaching process.
{"title":"Apparatus for testing the basic parameters of pacemaker","authors":"Filip Vaverka, M. Labuda, M. Gála","doi":"10.1109/ELEKTRO49696.2020.9130318","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130318","url":null,"abstract":"This paper describes a system design for testing implantable devices, namely pacemakers, that measures selected pacemaker parameters to indicate their proper functionality or potential malfunction. The resulting signals are interpreted and plotted using the programming interface of MATLAB. The efficiency of the resulting wiring is tested on real pacemakers and compared to the values of commercial programmers. The system is designed for easy and universal measurement of pacemaker parameters for learning purposes in the teaching process.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"283 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123269306","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130648
Juraj Skunda, J. Polec, J. Kacur, Boris Nerusil, Marek Almáši, Eva Smolejová
This article presents a method for detection of cognitive defects based on eye tracking and saliency maps. The main goal of our paper is to augment the original approach using saliency maps and correlation matrices by introducing orthogonal transforms, namely–DHYT, DST, DCT2 and DCT3. It was shown that combination of various orthogonal transforms provided different results, which are discussed in the article. Experimental data were measured using eye tracker tool for a group of healthy (22) and diagnosed (22) individuals exposed to the Rorschach inkblot test. On average the measured accuracies reached scores over 70% which forms a solid basis for automated prescreening deployment.
{"title":"Orthogonal Transform Coding Theory for Schizophrenia Disorder Detection","authors":"Juraj Skunda, J. Polec, J. Kacur, Boris Nerusil, Marek Almáši, Eva Smolejová","doi":"10.1109/ELEKTRO49696.2020.9130648","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130648","url":null,"abstract":"This article presents a method for detection of cognitive defects based on eye tracking and saliency maps. The main goal of our paper is to augment the original approach using saliency maps and correlation matrices by introducing orthogonal transforms, namely–DHYT, DST, DCT2 and DCT3. It was shown that combination of various orthogonal transforms provided different results, which are discussed in the article. Experimental data were measured using eye tracker tool for a group of healthy (22) and diagnosed (22) individuals exposed to the Rorschach inkblot test. On average the measured accuracies reached scores over 70% which forms a solid basis for automated prescreening deployment.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123433124","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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