Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626052
A. Drozd, V. Choo, A. Rich, B. Bowles
This paper discusses the development of a prototype Artificial Intelligence/Expert System (AI/ES) capabilit t o perform I i nea r/non I i near frequency ma nag eme n t 8 .e., assignment and confliction-deconfliction analysis) and identify optimum EM1 mitigation techniques to achieve total EMC under certain conditions, for a complex system o f equipments. This new capability adapts AVES technologies and exploits powerful modeling, simulation, analysis, prediction, and monitoring features available within such technologies. The EMC en ineering models are integrated into an AVES "shell" wxich permits the specification of certain boundary conditions using rules, procedures, formulas, and constraint data that govern relevant electromagnetic interactions and effects. This paper also discusses a possible thrust to integrate problem solving tools and techniques with a single AVES shell.
{"title":"Frequency Management And EMC Decision Making Using Artificial Intelligence/expert System Technology","authors":"A. Drozd, V. Choo, A. Rich, B. Bowles","doi":"10.1109/ISEMC.1992.626052","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626052","url":null,"abstract":"This paper discusses the development of a prototype Artificial Intelligence/Expert System (AI/ES) capabilit t o perform I i nea r/non I i near frequency ma nag eme n t 8 .e., assignment and confliction-deconfliction analysis) and identify optimum EM1 mitigation techniques to achieve total EMC under certain conditions, for a complex system o f equipments. This new capability adapts AVES technologies and exploits powerful modeling, simulation, analysis, prediction, and monitoring features available within such technologies. The EMC en ineering models are integrated into an AVES \"shell\" wxich permits the specification of certain boundary conditions using rules, procedures, formulas, and constraint data that govern relevant electromagnetic interactions and effects. This paper also discusses a possible thrust to integrate problem solving tools and techniques with a single AVES shell.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"84 1","pages":"77-85"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83912308","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626060
Yi He, S. Hashemi-Yegzmeh
This paper describes the development of a new dynamic finitedifference time-domain code, using the_electric scalar potential V and the magnetic vector potential A as the p$mary_source and variable, to compute electromagnetic fields E and H. The code offers some advantages when the electric potential V becomes the primary source excitation, allowing determination of the electric and the magnetic fields from it.
{"title":"Development of voltage finite-difference time-domain method for numerical modeling of electromagnetic problems","authors":"Yi He, S. Hashemi-Yegzmeh","doi":"10.1109/ISEMC.1992.626060","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626060","url":null,"abstract":"This paper describes the development of a new dynamic finitedifference time-domain code, using the_electric scalar potential V and the magnetic vector potential A as the p$mary_source and variable, to compute electromagnetic fields E and H. The code offers some advantages when the electric potential V becomes the primary source excitation, allowing determination of the electric and the magnetic fields from it.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"29 1","pages":"124-126"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79301234","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626078
D. Boston, D. J. Reeb
{"title":"Designing Electromagnetic Interference Protection For Test Facilities In New Buildings","authors":"D. Boston, D. J. Reeb","doi":"10.1109/ISEMC.1992.626078","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626078","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"32 1","pages":"204-205"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82611220","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626087
B. Keeney
This paper will present a methodology for evaluating effective relative permittivity using a Time Domain Relectometer (TDR). Though the concept of using a TDR to measure permittivity is not new, it has not become widely known and accepted. It will be shown that reasonable results can be obtained with this method and that the values obtained for relative permittivity can be used with excellent results when used in the proper closed form equations or modeling method. This method is particularly useful when processes, as in present day laminated circuit boards, have had an impact on the effective permittivity. In these cases using published values or using conventional methods for determining permittivity can lead to errors in computations for characteristic impedance.
{"title":"A time domain reflectometry technique to determine effective permittivity in lossless transmission lines","authors":"B. Keeney","doi":"10.1109/ISEMC.1992.626087","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626087","url":null,"abstract":"This paper will present a methodology for evaluating effective relative permittivity using a Time Domain Relectometer (TDR). Though the concept of using a TDR to measure permittivity is not new, it has not become widely known and accepted. It will be shown that reasonable results can be obtained with this method and that the values obtained for relative permittivity can be used with excellent results when used in the proper closed form equations or modeling method. This method is particularly useful when processes, as in present day laminated circuit boards, have had an impact on the effective permittivity. In these cases using published values or using conventional methods for determining permittivity can lead to errors in computations for characteristic impedance.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"2015 1","pages":"243-246"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86906156","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626071
S. Kubina, C. Trueman
This paper outlines the graduate degrees and programs available at Concordia, and the course offerings for students interested in electromagnetics. "Techniques in Electromagnetic Compatibility" provides a broad, comprehensive introduction to EMC problems, analysis techniques, instrumentation and solutions at the graduate level. It is also aimed at working engineers who encounter practical EMC problems, which they describe in the course and provide motivation and realism to the course content. The lecture segment of the course covers the essential topics, and is followed by a series of student project seminars. Contact with modern measurement requirements and instrumentation is provided with demonstrations and site visits. Historical Background Educational programs in Electromagnetic Compatibility tend to have special characteristics, which are best understood in the light of their historical development and the local demands and resources which shape objectives and content. Concordia University was created in 1974 from the amalgamation of Loyola College and Sir George Williams University. At the time of amalgamation, the authors were involved in the development of an undergraduate electrical engineering curriculum at Loyola which had strong links to the local industrial community and in an initial research program for the development of EMC prediction techniques [ 11 for avionics systems. After amalgamation, the research activity was extended to the application of computational electromagnetics to the modelling of radiation and coupling problems for complex structures and special problems such as the interaction of broadcast antennas and power lines [2] and specific aerospace projects [3]. The scope of this activity and the size of the research team became sufficient for the EMC Laboratory lo be recognized as such. At the same time the graduate program in electromagnetics was strengthened to provide a coherent set of relevant courses for graduate students. During 1985 an opportunity presented itself for the extended visit of Dr. Andrew Marvin of York University to Concordia, and it was most opportune to exploit his experience and expertise for the organization of the first EMC course [4] in Quebec. This course has evolved somewhat since, but continues to be offered on a yearly basis and provides, together with the EMC-related research activity, a focal point for EMC graduate interest. Its present content and emphasis is best understood from the perspective of the graduate program requirements at Concordia.
本文概述了康考迪亚大学提供的研究生学位和课程，以及为对电磁学感兴趣的学生提供的课程。“电磁兼容技术”提供了一个广泛的，全面的介绍EMC问题，分析技术，仪器和解决方案的研究生水平。它也针对遇到实际EMC问题的工作工程师，他们在课程中描述这些问题，并为课程内容提供动力和现实性。课程的讲座部分涵盖了基本主题，随后是一系列学生专题研讨会。接触现代测量要求和仪表提供示范和网站访问。历史背景电磁兼容性教育课程往往具有特殊性，最好根据其历史发展和当地需求和资源来理解，这些需求和资源形成了目标和内容。康科迪亚大学成立于1974年的合并罗耀拉大学和乔治·威廉姆斯爵士大学。在合并期间，作者参与了洛约拉大学本科电气工程课程的开发，该课程与当地工业界有着密切的联系，并参与了航空电子系统EMC预测技术开发的初步研究计划[11]。合并后，研究活动扩展到计算电磁学在复杂结构和特殊问题(如广播天线和电力线的相互作用[2]和特定航空航天项目[3])的辐射和耦合问题建模中的应用。这项活动的范围和研究小组的规模足以使EMC实验室得到认可。同时，加强了电磁学研究生课程，为研究生提供了一套连贯的相关课程。1985年期间，约克大学的安德鲁·马文博士(Dr. Andrew Marvin)有机会对康考迪亚进行长期访问，这是利用他的经验和专业知识在魁北克组织第一个EMC课程的最佳时机[4]。自那以后，这门课程有所发展，但仍然每年提供一次，并与EMC相关的研究活动一起，成为EMC毕业生感兴趣的焦点。它目前的内容和重点最好从康考迪亚大学研究生课程要求的角度来理解。
{"title":"Graduate EMC Education At Concordia University","authors":"S. Kubina, C. Trueman","doi":"10.1109/ISEMC.1992.626071","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626071","url":null,"abstract":"This paper outlines the graduate degrees and programs available at Concordia, and the course offerings for students interested in electromagnetics. \"Techniques in Electromagnetic Compatibility\" provides a broad, comprehensive introduction to EMC problems, analysis techniques, instrumentation and solutions at the graduate level. It is also aimed at working engineers who encounter practical EMC problems, which they describe in the course and provide motivation and realism to the course content. The lecture segment of the course covers the essential topics, and is followed by a series of student project seminars. Contact with modern measurement requirements and instrumentation is provided with demonstrations and site visits. Historical Background Educational programs in Electromagnetic Compatibility tend to have special characteristics, which are best understood in the light of their historical development and the local demands and resources which shape objectives and content. Concordia University was created in 1974 from the amalgamation of Loyola College and Sir George Williams University. At the time of amalgamation, the authors were involved in the development of an undergraduate electrical engineering curriculum at Loyola which had strong links to the local industrial community and in an initial research program for the development of EMC prediction techniques [ 11 for avionics systems. After amalgamation, the research activity was extended to the application of computational electromagnetics to the modelling of radiation and coupling problems for complex structures and special problems such as the interaction of broadcast antennas and power lines [2] and specific aerospace projects [3]. The scope of this activity and the size of the research team became sufficient for the EMC Laboratory lo be recognized as such. At the same time the graduate program in electromagnetics was strengthened to provide a coherent set of relevant courses for graduate students. During 1985 an opportunity presented itself for the extended visit of Dr. Andrew Marvin of York University to Concordia, and it was most opportune to exploit his experience and expertise for the organization of the first EMC course [4] in Quebec. This course has evolved somewhat since, but continues to be offered on a yearly basis and provides, together with the EMC-related research activity, a focal point for EMC graduate interest. Its present content and emphasis is best understood from the perspective of the graduate program requirements at Concordia.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"41 1","pages":"171-173"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87057268","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626040
L. Halme, J. Annanpalo, T. Kilpinen
The intention of this paper is to study and explain on which conditions different approximations can be used in shielding attenuation calculations of metal boxes or rooms. Maxwell's equations are recalled as the basis of the screening theory. Both the method using the quasistationary assumption and the method using reflection and absorption loss are shown to be based on Maxwel's equations and the boundary conditions. The principles of both methods are annexed. Results of both methods are compared with results calculated using Maxwell's equations directly. This comparison and discussion on the effect of practical details leads to conclusions on the choice of the correct method.
{"title":"Screening theory of metallic enclosures","authors":"L. Halme, J. Annanpalo, T. Kilpinen","doi":"10.1109/ISEMC.1992.626040","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626040","url":null,"abstract":"The intention of this paper is to study and explain on which conditions different approximations can be used in shielding attenuation calculations of metal boxes or rooms. Maxwell's equations are recalled as the basis of the screening theory. Both the method using the quasistationary assumption and the method using reflection and absorption loss are shown to be based on Maxwel's equations and the boundary conditions. The principles of both methods are annexed. Results of both methods are compared with results calculated using Maxwell's equations directly. This comparison and discussion on the effect of practical details leads to conclusions on the choice of the correct method.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"4 1","pages":"6-14"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90302303","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626073
S. He, Jichen He
{"title":"Harmonic measurement in time domain and harmonic limit standards in power system","authors":"S. He, Jichen He","doi":"10.1109/ISEMC.1992.626073","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626073","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"27 1","pages":"181-182"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90039936","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626082
D. Gerke
{"title":"Electric field levels around a typical amateur radio station","authors":"D. Gerke","doi":"10.1109/ISEMC.1992.626082","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626082","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"66 1","pages":"223-225"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90470338","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 : 1992-01-01DOI: 10.1109/ISEMC.1992.626070
D. Weiner
ELECTROMAGNETIC COMPATIBILITY is proposed as a new 500-level course in Electrical Engineering. This course will augment the relatively few design courses available to students in Electrical and Computer Engineering. It will also satisfy the need by industry for students who understand problems associated with designing electromagnetically compatible products. To enhance the design aspect of the course, demonstrations and experiments will be included. A) PROBLEM STATEMENT The accreditation board for Electrical and Computer Engineering undergraduate programs requires that undergraduate students take a minimum of 16 design credits. Currently, Electrical and Computer Engineering students at Syracuse University have little flexibility in selection of their design courses. To alleviate this situation, it is proposed to develop a new 500-level design course to be taught for senior and first-year graduate students. In selecting the topic area for such a course, consideration was given to industrial requirements. Manufacturers of electrical products and electronic systems are keenly aware of the importance of electromagnetic compatibility (EMC). For example, it is important that the electromagnetic radiation from a home computer not interfere with television reception. As a rule, industry cannot afford an in house program to train their beginning engineers to the necessary level of EMC design competence. Consequently, industry today considers a basic knowledge of EMC to be as important a part of an Electrical or Computer Engineer’s education as is circuits, digital design, signal theory, electromagnetics, etc. Nevertheless, according to a survey in 1985 by the Education Committee of the IEEE Electromagnetic Compatibility Society, only a few colleges and universities offer courses dealing with EMC. In spite of this, most respondents felt that there was a need to include this material in the Electrical Engineering curriculum. To satisfy this need, ELECTROMAGNETIC COMPATIBILITY was selected as the subject matter for the new design course. B) OBJECTIVES The course material will be based on the text, INTRODUCTION TO ELECTROMAGNETIC COMPATIBILITY, by C.R. Paul. The manuscript has only recently been accepted for publication by John Wiley and Sons, Inc. (I served as one of the reviewers for John Wiley.) A course outline, based on this text, is included with the supporting documents. In a design course of this nature, it is important that the student observe demonstrations and have an opportunity to conduct experiments. Not only will this help the student to understand and retain the course material, it will also provide the student with an opportunity to see and use modern measurement equipments and to CH3169-0/92/0000-0032 $3.00 01992 IEEE 166 obtain an appreciation for realistic "numbers" to be observed in practice. The objective of the proposed project is to develop a minimum of two demonstrations and four experiments for the new course which will first be tau
《电磁兼容性》是电气工程专业500级新开设的一门课程。本课程将为电气和计算机工程专业学生提供相对较少的设计课程。它也将满足行业对了解设计电磁兼容产品相关问题的学生的需求。为了加强课程的设计方面，将包括演示和实验。A)问题说明电子与计算机工程本科专业认证委员会要求本科学生至少修满16个设计学分。目前，雪城大学(Syracuse University)电气和计算机工程专业的学生在选择设计课程时几乎没有灵活性。为了缓解这种情况，建议开发一门新的500级设计课程，面向大四和研究生一年级的学生。在为这门课程选择主题领域时，考虑到了工业要求。电气产品和电子系统的制造商都敏锐地意识到电磁兼容性(EMC)的重要性。例如，重要的是，来自家用电脑的电磁辐射不干扰电视接收。作为一个规则，行业不能负担一个内部程序来培训他们的初级工程师到必要水平的EMC设计能力。因此，当今业界认为EMC的基本知识与电路，数字设计，信号理论，电磁学等一样，是电气或计算机工程师教育的重要组成部分。然而，根据1985年IEEE电磁兼容协会教育委员会的一项调查，只有少数学院和大学提供有关电磁兼容的课程。尽管如此，大多数受访者认为有必要将这些材料纳入电气工程课程。为了满足这一需求，我们选择了电磁兼容性作为新设计课程的主题。本课程材料将基于C.R. Paul所著的《电磁兼容性导论》。手稿直到最近才被约翰·威利父子公司(John Wiley and Sons, Inc.)接受出版(我是约翰·威利的审稿人之一)。课程大纲，基于这一文本，包括在支持文件。在这种性质的设计课程中，学生观察演示并有机会进行实验是很重要的。这不仅有助于学生理解和记住课程材料，还将为学生提供一个看到和使用现代测量设备的机会，并使他们能够在实践中观察到真实的“数字”。该计划的目标是为新课程开发至少两个演示和四个实验，该课程将于1992年春季学期首次教授。如有可能，还将安排学生到当地通用电气公司的EMC实验室进行实地考察。课程介绍7.2屏蔽线7.3绞合线
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Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626156
E. Marx
Moving point charges generate nonsinusoidal electromagnetic fields, and the motion of the charges is in turn determined by the fields. The full dynamical problem includes radiation reaction, which is discussed here. Nonsinusoidal fields are also associated with relativistic quantum mechanics, where the notion of causality is extended. Cerenkov radiation and the Aharonov-Bohm effect are two other topics.
{"title":"Point charges, radidiation reaction, and quantum mechanics","authors":"E. Marx","doi":"10.1109/ISEMC.1992.626156","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626156","url":null,"abstract":"Moving point charges generate nonsinusoidal electromagnetic fields, and the motion of the charges is in turn determined by the fields. The full dynamical problem includes radiation reaction, which is discussed here. Nonsinusoidal fields are also associated with relativistic quantum mechanics, where the notion of causality is extended. Cerenkov radiation and the Aharonov-Bohm effect are two other topics.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"42 1","pages":"508-512"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85807451","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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