For the purpose of enhancing interests of high school students towards electrical and electronics engineering, experimental classes on electronic circuits are being planned and conducted as SSH lectures. LED switching circuits with transistors were selected as the subject in one class, while another class is being planned with optical detection circuits as its main subject.
{"title":"SSH講座としての高校生向け電子回路実習の実施","authors":"Makoto Hasegawa","doi":"10.1541/ieejfms.143.364","DOIUrl":"https://doi.org/10.1541/ieejfms.143.364","url":null,"abstract":"For the purpose of enhancing interests of high school students towards electrical and electronics engineering, experimental classes on electronic circuits are being planned and conducted as SSH lectures. LED switching circuits with transistors were selected as the subject in one class, while another class is being planned with optical detection circuits as its main subject.","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161396","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 : 2023-11-01DOI: 10.1541/ieejfms.143.nl11_3
康 山納
{"title":"研究グループ 紹介：埼玉大学大学院 理工学研究科 数理電子情報部門 山納研究室","authors":"康 山納","doi":"10.1541/ieejfms.143.nl11_3","DOIUrl":"https://doi.org/10.1541/ieejfms.143.nl11_3","url":null,"abstract":"","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161709","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 : 2023-11-01DOI: 10.1541/ieejfms.143.nl11_1
{"title":"令和6年電気学会全国大会 一般講演申込受付開始／基礎・材料・共通部門 論文誌 2023年11月号（Vol. 143, No. 11）目次","authors":"","doi":"10.1541/ieejfms.143.nl11_1","DOIUrl":"https://doi.org/10.1541/ieejfms.143.nl11_1","url":null,"abstract":"","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135162287","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}
The adoption of remote classes has rapidly increased at educational institutions since the start of the global COVID-19 pandemic in 2020. However, in Japan, remote classes cannot be unconditionally substituted for in-person classes. Thus, there is a need to evaluate the educational effects of remote classes, taking into account the academic field and other aspects of the class, such as whether it is a lecture class or a laboratory exercise class. In this study, I investigate the educational effects of introducing remote learning by comparing class questionnaires and lab report and test scores from 2020 and 2021 with those from 2019 in the College of Science and Technology at Nihon University, where I am an associate professor. The classes surveyed were Control Engineering, which is a lecture class, and Electrical and Electronic Engineering Experiments, which is a laboratory exercise class. The results of the class questionnaire analysis showed that on-demand classes were poorly evaluated by students, whereas hybrid remote classes were highly evaluated. The results of the lab report and test score analysis revealed a widening gap in the level of understanding among students in remote classes compared with in-person classes.
{"title":"コロナ禍による授業方法の変化が実験実習科目及び講義科目に及ぼした影響の検討","authors":"Takahiro Hoshino","doi":"10.1541/ieejfms.143.338","DOIUrl":"https://doi.org/10.1541/ieejfms.143.338","url":null,"abstract":"The adoption of remote classes has rapidly increased at educational institutions since the start of the global COVID-19 pandemic in 2020. However, in Japan, remote classes cannot be unconditionally substituted for in-person classes. Thus, there is a need to evaluate the educational effects of remote classes, taking into account the academic field and other aspects of the class, such as whether it is a lecture class or a laboratory exercise class. In this study, I investigate the educational effects of introducing remote learning by comparing class questionnaires and lab report and test scores from 2020 and 2021 with those from 2019 in the College of Science and Technology at Nihon University, where I am an associate professor. The classes surveyed were Control Engineering, which is a lecture class, and Electrical and Electronic Engineering Experiments, which is a laboratory exercise class. The results of the class questionnaire analysis showed that on-demand classes were poorly evaluated by students, whereas hybrid remote classes were highly evaluated. The results of the lab report and test score analysis revealed a widening gap in the level of understanding among students in remote classes compared with in-person classes.","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161376","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}
This study aimed to develop teaching materials for circuit design and fabrication for elementary school students, and conduct workshops oriented to engineering. First, the content of the circuit design workshop was discussed and it was determined that a connection-focused design would be appropriate. Second, we examined the issue of existing teaching materials. Many of the existing kit materials were not suitable for learning circuit design as it was already completed. In addition, many of them required soldering work, which was too difficult for elementary school students. Hands-on materials that allow students to construct circuits through trial and error were suitable for learning circuit design. Therefore, we developed design and fabrication support materials using a 3D printer and conductive tape. Next, we provided workshop opportunities using developed material, with the theme of “making light-up cards,” wherein elementary school students worked on designing the layout of the components and fabrication. Consequently, students' conceptual understanding of the connection was improved. All students were able to complete the circuit, with high self-evaluations of satisfaction and understanding suggesting that the activity was engineering-oriented.
{"title":"Development and Practice of Learning Materials for an Engineering Oriented Circuit Design Workshop for Elementary School Student","authors":"Tadashi Ishibashi, Jun Moriyama","doi":"10.1541/ieejfms.143.348","DOIUrl":"https://doi.org/10.1541/ieejfms.143.348","url":null,"abstract":"This study aimed to develop teaching materials for circuit design and fabrication for elementary school students, and conduct workshops oriented to engineering. First, the content of the circuit design workshop was discussed and it was determined that a connection-focused design would be appropriate. Second, we examined the issue of existing teaching materials. Many of the existing kit materials were not suitable for learning circuit design as it was already completed. In addition, many of them required soldering work, which was too difficult for elementary school students. Hands-on materials that allow students to construct circuits through trial and error were suitable for learning circuit design. Therefore, we developed design and fabrication support materials using a 3D printer and conductive tape. Next, we provided workshop opportunities using developed material, with the theme of “making light-up cards,” wherein elementary school students worked on designing the layout of the components and fabrication. Consequently, students' conceptual understanding of the connection was improved. All students were able to complete the circuit, with high self-evaluations of satisfaction and understanding suggesting that the activity was engineering-oriented.","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161105","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}
We have developed a virtual laboratory for student laboratory on transformer characteristics. In the past, the division of roles was fixed during student laboratory in our department. Many students felt that they could not wire even if they looked at the circuit diagram. Therefore, we developed a virtual laboratory where students can input wiring data while looking at a circuit diagram on the Web and automatically determine whether the wiring is correct or incorrect. In addition, a video on transformer experiments was also created on the Web. In fact, third-year students in this department were asked to use the virtual laboratory, and a questionnaire survey was conducted. As a result, it was found that the virtual experiment developed in this study is effective for learning because the students can see the circuit diagram and practice wiring as many times as they want until. The virtual experiment data can be displayed after the wiring is completed, which is considered to have improved the educational effect.
{"title":"Development of a Virtual Experiment System for Transformer Characteristics Experiments in Student Laboratory","authors":"Rikuto Otake, Masashi Ohchi","doi":"10.1541/ieejfms.143.356","DOIUrl":"https://doi.org/10.1541/ieejfms.143.356","url":null,"abstract":"We have developed a virtual laboratory for student laboratory on transformer characteristics. In the past, the division of roles was fixed during student laboratory in our department. Many students felt that they could not wire even if they looked at the circuit diagram. Therefore, we developed a virtual laboratory where students can input wiring data while looking at a circuit diagram on the Web and automatically determine whether the wiring is correct or incorrect. In addition, a video on transformer experiments was also created on the Web. In fact, third-year students in this department were asked to use the virtual laboratory, and a questionnaire survey was conducted. As a result, it was found that the virtual experiment developed in this study is effective for learning because the students can see the circuit diagram and practice wiring as many times as they want until. The virtual experiment data can be displayed after the wiring is completed, which is considered to have improved the educational effect.","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161563","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 : 2023-11-01DOI: 10.1541/ieejfms.143.nl11_4
{"title":"基礎・材料・共通部門役員会・委員会名簿","authors":"","doi":"10.1541/ieejfms.143.nl11_4","DOIUrl":"https://doi.org/10.1541/ieejfms.143.nl11_4","url":null,"abstract":"","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135162071","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}
{"title":"Preface to Special Issue on “Frontier of Education in Electrical and Electronics Engineering”","authors":"Itaru Nakamura","doi":"10.1541/ieejfms.143.337","DOIUrl":"https://doi.org/10.1541/ieejfms.143.337","url":null,"abstract":"教育フロンティア技術委員会提案の特集号では，2度目の巻頭言となる。","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161689","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 : 2023-11-01DOI: 10.1541/ieejfms.143.nl11_2
隆浩 今井
{"title":"研究調査委員会 レポート：テーラーメイドによるコンポジット絶縁材料開発の進展と応用技術調査専門委員会","authors":"隆浩 今井","doi":"10.1541/ieejfms.143.nl11_2","DOIUrl":"https://doi.org/10.1541/ieejfms.143.nl11_2","url":null,"abstract":"","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135161559","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}
In understanding the formation mechanism of laser-induced periodic surface structures (LIPSS), the dependence of the LIPSS formation threshold fluence F// on the material properties is crucial. In this work, the LIPSS generated upon the irradiation of various semiconductor materials with a train of 11.4 µm femtosecond laser pulses were examined. The laser source was a Mid-infrared free-electron laser (MIR-FEL). Eight semiconductor substrates (i.e., Si, Ge, ZnO, SiC-4H, GaP, GaN, CdTe, and SiO2) were used as the targets. On Si, Ge, SiC-4H, and GaN, the LIPSS were oriented parallel to the MIR-FEL polarization with interspaces of 1/8 to 1/4 of the MIR-FEL wavelength λFEL. These interspaces tended to match the wavelength of the second harmonic of the MIR-FEL light propagating in the substrates. The obtained F// were relatively correlated with the bandgap energies of materials, as were those for near-infrared femtosecond lasers. Another type of LIPSS oriented perpendicular to the MIR-FEL polarization with interspaces of λFEL to λFEL/9 was also observed in the same spot on SiC-4H or GaN at higher fluences than only //-LIPSS was formed.
{"title":"Formation of Periodic Surface Structures on Semiconductors under Mid-Infrared Free-Electron Laser Irradiation","authors":"Shin-ichiro Masuno, Masaki Hashida, Heishun Zen","doi":"10.1541/ieejfms.143.320","DOIUrl":"https://doi.org/10.1541/ieejfms.143.320","url":null,"abstract":"In understanding the formation mechanism of laser-induced periodic surface structures (LIPSS), the dependence of the LIPSS formation threshold fluence F// on the material properties is crucial. In this work, the LIPSS generated upon the irradiation of various semiconductor materials with a train of 11.4 µm femtosecond laser pulses were examined. The laser source was a Mid-infrared free-electron laser (MIR-FEL). Eight semiconductor substrates (i.e., Si, Ge, ZnO, SiC-4H, GaP, GaN, CdTe, and SiO2) were used as the targets. On Si, Ge, SiC-4H, and GaN, the LIPSS were oriented parallel to the MIR-FEL polarization with interspaces of 1/8 to 1/4 of the MIR-FEL wavelength λFEL. These interspaces tended to match the wavelength of the second harmonic of the MIR-FEL light propagating in the substrates. The obtained F// were relatively correlated with the bandgap energies of materials, as were those for near-infrared femtosecond lasers. Another type of LIPSS oriented perpendicular to the MIR-FEL polarization with interspaces of λFEL to λFEL/9 was also observed in the same spot on SiC-4H or GaN at higher fluences than only //-LIPSS was formed.","PeriodicalId":23081,"journal":{"name":"The transactions of the Institute of Electrical Engineers of Japan.A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372330","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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