The Proceedings of the Tecnology and Society Conference
Online ISSN : 2432-9487
Current issue
Displaying 1-46 of 46 articles from this issue
  • Ayuko SAITO
    Session ID: 111
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Programming education has become compulsory in elementary schools from 2020 and in junior high schools from 2021, as part of efforts to raise the level of ICT utilization in Japan. Programming is considered to improve the logical thinking ability of children. Although visual programming languages are being used in introductory programming education to convert ideas into reality for children who do not know how to code, it is necessary to learn text programming languages in order to realize more advanced and complicated processing. This paper describes an attempt for a text programming class using MATLAB for elementary school students. The results of the participant questionnaire describe that the participants have managed their tasks on their own even though they have felt those are difficult. In addition, the participants seem to have had successful experience by creating their own music files.

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  • Toshikazu YAMAMOTO, Rintaro SEKI, Akira WATANABE
    Session ID: 112
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    This study focuses on ocean current power generation, develops a device for experiential learning, and aims to propose a teaching process. The developed device consists of a hull and a power generation turbine. The hull is stabilized by attaching two styrofoam floats side by side. The power generation turbine was designed and manufactured using 3D CAD. The guidance process consists of (1) confirming the energy situation in Japan and recognizing the need for renewable energy, (2) learning the mechanisms and characteristics of ocean current power generation through experiments, and (3) thinking about Japan's future energy policy. As a result of the experiment, I was able to understand the characteristics of ocean current power generation and consider Japan's energy policy from various points of view.

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  • (Approach to Education through Collaboration between Monozukuri and English)
    Toshiyuki HIRANO, Ema TAMURA, Nobuko INUI
    Session ID: 114
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    An open lecture was held at the Tokyo Metropolitan College of Industrial Technology for 4th grade elementary school students and above and junior high school students to learn English while making things. In this lecture, students first learned about the mechanism of flying objects and further deepened their knowledge by actually experiencing flying objects. Next, the students made rubber-powered airplanes using teaching materials written in both Japanese and English. They also learned the English names of airplane parts, English expressions used in the manufacturing process, and English grammar. After the public class, a questionnaire was conducted among the students and children who took part in the course. As a result, from the efforts of this open lecture, it was confirmed that the teaching materials created in this open lecture were easy to understand for students and children.

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  • (Case study of a factory tour)
    Izuru SENAHA, Hiroki NAGASHIMA
    Session ID: 121
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The "Project Management Exercise" lecture is offered as an elective course to allow students to experience problem-solving methods through practical project management. In FY2022, students were given an event-type assignment to plan and manage a factory tour during the summer vacation period. Such event-type assignments are common in the real world, but they are relatively difficult for beginners with little experience. In this study, students (project team) who had no previous experience with such event-based assignments were asked to execute a project to solve the problem using project management techniques. As a result, the project team was able to successfully execute an event-type assignment with sufficient effectiveness, from communicating with external stakeholders (MRO Japan, Bus companies, etc.) and recruiting participants to managing the event. As described above, the use of project management techniques in a project that requires heavy responsibility, such as liaison with external stake holders, was confirmed to increase students' achievement in problem-solving.

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  • (Case study of agitation equipment development)
    Izuru SENAHA, Keita YASUDA
    Session ID: 122
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The "Project Management Exercise" lecture is offered as an elective course to allow students to experience problem-solving methods through practical project management. In FY2021, we designed and manufactured a device (stirring mechanism) to improve the efficiency of hydrate production experiments under the theme of "Provision of a stirring mechanism inside a pressure vessel. In order to complete the deliverables (stirring mechanism) to the level required by the client in a relatively short period of time, advance planning is extremely important. In this project, because we were able to create a solid project plan, we were able to proceed with the project with almost no problems, and we were able to submit deliverables that met the client's requirements by the scheduled date. As described above, it was confirmed that even in a project with relatively high expertise and a high level of requirements, the use of project management methods can increase the students' achievement in solving problems.

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  • Hironobu YUKI
    Session ID: 123
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Usage pattern of on-demand type learning content as alternative materials to the face-to-face classes in engineering subjects for undergraduates was reported. The learning content was simply made by recording screen images of the video projector and the explanative voices of the teacher in the classroom during the lesson in video files. The recorded files were provided on the learning management system as the streaming content to the students who had been absent from the face-to-face class. Approximately a quarter of registered students took on-demand lessons once or twice throughout one semester. The most common reason for absence from the face-to-face class was bad health, whereas direct reasons due to COVID-19, such as side effects of the vaccine or being in close contact with an infectious disease patient, were small. These facts suggest that the necessity of providing on-demand type content should be considered from the perspective of supplementing the absence of face-to-face classes rather than correspondence to the COVID-19 situation.

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  • -As the Basis and goals of engineering and technology education-
    Motoko TANABE
    Session ID: 124
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Comprehensive learning is learning in which the learner discovers the "problems" to be solved in the surrounding environment, region, society, and era, and sets the problems and methods.

    The process of problem inquiry may traverse the systematically arranged content of the subject area, or it may go deeper into subject area learning.

    Engineering education is based on the attitude of constantly repeating verification and improvement of technology, performance, design, and quality in order to realize a better life and society. We will consider the significance of the existence of "integrated study" in the liberal arts course before studying engineering as a major, from contemporary practice.

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  • Mina MASUSAKO, Hitoshi TSUNASHIMA
    Session ID: 131
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    On-demand classes using video viewing has been spreading due to COVID-19 pandemic. While on-demand classes have the advantage of allowing large groups of students to attend classes in flexible environment, compared to face-to-face classes, it is pointed out that they are less effective for learning because students cannot maintain concentration during the class. In this study, brain activity in the prefrontal cortex of video viewing learners was measured in real time using wearable NIRS (Near-InfraRed Spectroscopy) to evaluate their state of concentration in the class. The arousal index based on the NIRS signal was developed and used. As a result, it was shown that the monitoring of the learner's concentration level in real time using the wearable NIRS. We also proposed a method to make the on-demand class more effective based on the results of brain activity evaluation.

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  • Yoshifusa MATSUURA
    Session ID: 132
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In the field of manufacturing in Japan, the training of skill successors is an urgent issue. Research and system development on skill transfer have been conducted so far, but most of them are related to skill measurement methods and proficiency analysis. This seems to be aimed at preserving and transmitting the current form of skills, and as a result, it takes time to acquire skills. Originally, skills should be acquired in order to produce new skills, and a method of teaching skills that produce high-value products is needed instead of focusing on imitation. Therefore, in this research, we propose a new educational method that reconstructs knowledge from the educational viewpoint of the target skill and promotes empathy between the skill expert and the learner.

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  • Natsumi OKATANI, Ryuji SHIOYA, Yasushi NAKABAYASHI, Terutoshi TADA
    Session ID: 133
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Technologies of automatic recognition by AI and augmented display by AR may help to compensate for the lack of understanding due to a lack of language or knowledge. For example, by automatically recognizing road signs and information boards in foreign countries and displaying them in their native language or motion graphics, it can be easy to understand them even without knowledge of the language, symbols, or historical backgrounds and it may help to acquire knowledge. It is not easy sometimes to understand the exact meaning of a road sign. If signs are more intuitive, accidents for children and non-drivers can be reduced too and foreigners can drive more safely. This study aims to support road signs and learning about traffic, and assist and enhance the experience of historical learning and educational trips. 'Automatic AR motion graphics of road signs (moving road signs)' and 'Automatic AR motion graphics and infographics of information boards in history textbooks and sightseeing spots' are developed. These are extended to realize city design for tourism and internationalization. In order to display contents according to the recognized road signs, a system was developed that judged the signs using DL, and its accuracy was verified. The system enables intuitive understanding by extending the expressions on road signs and information boards through AR technology, it is contributing to the improvement of the learner's experience and sustainable society by reducing the use of natural resources. Automatic recognition by AI technology makes AR easy to implement and highly flexible.

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  • Susumu HARA, Shunsuke ONIBUCHI, Daisuke TSUBAKINO, Kazuaki ITO, Tsubas ...
    Session ID: 141
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    This study discusses control engineering experimental classes for undergraduate students and considers how we realize the same experiment together at the same time in plural places which are far apart from one another. Such a class operation may increase importance for Covid-19 or rationalization of lab classes due to the aged society with a low birth rate. The objective of this study is to make clear the system configuration realizing highly educational classes safely. This report shows the state of a trial simultaneous execution of control engineering experimental classes in Nagoya and Gifu National Universities.

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  • Toshio OTAKA, Erika SUNADA, Hazuki KAI, Yuya MAKI, Toshiyuki TORIKAI
    Session ID: 142
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In recent years, many Japanese companies that have set up overseas operations have occasionally experienced yield rate issues at their respective local production plants. When the company provides guidance for improvement, local workers sometimes resign from their jobs, which has become a problem. One of the reasons for this is that local workers do not understand the spirit of Japanese-style manufacturing (“monozukuri”). This is true not only for technical workers but also for clerical workers, as evidenced, for example, by conference interpreters who are unable to convey the correct message to the interested parties. Mutual cross-cultural understanding is a key to solving these problems.

    Incidentally, many international students are enrolled at Kokushikan University, and many of them are employed by Japanese companies. We are currently promoting a number of projects to help international students deepen their understanding of Japanese culture and values, including Japanese speech contests and language exchange programs. This report provides examples of education on Japanese culture and values at Kokushikan University, and explores the near future direction of education for international students.

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  • Takeshi YAMAGUCHI, Kazuhiro TANAKA
    Session ID: 143
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In this program, engineers from the company give instruction to graduate students to carry out product design. The students have to follow the design processes, which are exactly operated in the company. The processes are like setting goal, creating design, drawing using CAD (Computer Aided Design), evaluation use of CAE (Computer Aided Engineering), creating prototype by 3D printer and final experimental evaluation. The students can apply the elemental and essential technology or theory that they have learned in their undergraduate programs to practical design process. The students from various background, fluid dynamics major, material mechanics major, etc. work together to achieve goal helping each other. This is quite unique and practical education program never seen before. In this paper, as one of the major curriculum provided by Aisin, how to educate graduate students through designing stator blade of torque converter inside automatic transmission is shown.

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  • Norio YOSHIKAWA
    Session ID: 144
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In the Department of Mechanical Engineering of Kanagawa Institute of Technology, first-year students take a class called "Mechanical Engineering Project I" which aims to develop an interest in, awareness of, and understanding of the importance of mechanical engineering. By the way, many of the products around us are composed of mechatronics, which is a fusion of mechanical engineering and electronic engineering. We believe that it is important to be exposed to and understand the fundamentals of mechatronics technology. Therefore, we launched and practiced a new theme of "moving things by programming" and "learning the basics of dynamics of machinery" using a single board computer in the class.

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  • Ryosuke SUZUKI, Yoshio ZAMA, Shinji KOYAMA, Mikiya ARAKI, Kou YAMADA
    Session ID: 151
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    "High school days" are special. Interest in science and dreams for the future come closest. We will provide opportunities to come into contact with mechanical engineering through various channels at a sensitive time when enlightenment is most effective. The ultimate goal of this project is to build a “cycle of nurturing people”. “Technology is human”. Genome analyzers and quantum computers are not technologies. Technology is the people who create and use it. In order to continuously nurture “people who think for themselves, who involve others, and who continue to search for answers'” while making the most of the limited resources of local cities, we will build “three cycles”. (i) construction of a cycle of cross-generational education, (ii) construction of a cycle that connects the education and industry, and (iii) construction of a cycle that connects Gunma and the whole country. After 10 years from the start of the event, these cycles are starting to run effectively.

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  • (Case Study of Open House)
    Shigeo SUGITANI
    Session ID: 153
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Researchers are making studies with an inquiring mind every day. On the other hand, In the community where the research facility is located, the existence of the research facility isn't well understood by the local people, as typified by the phrase "I don't know what they are doing." It is a difficult situation. To overcome this situation, efforts to introduce research are being carried out at each research institute. However, for example, the explanation of research results is one-sided and difficult to understand, and it is possible to glimpse only on the Internet site. Research referrals are often inadequate. For this reason, it is necessary to enhance the introduction of research content and strive to educate and disseminate cutting-edge technology in these research introductions. In this paper, we will introduce some examples of facilities' open house events, and discuss the modalities of dissemination and educational activities at research facilities.

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  • Naotaka HIRAMI
    Session ID: 154
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The purpose of this research is to develop an educational method to enable students in higher education to acquire practical problem-solving skills. In an attempt to do so, "Concept development theory", which is offered as a compulsory subject of the course, has been designed and its effectiveness is being discussed in this report. First, students learn seven quality control (QC) tools and new seven tools for QC mainly used in the manufacturing industry for the application to actual social or enterprise issues. Subsequently, the students are tasked to work on the past business cases described in the national examination of the qualification for a small and medium enterprise (SME) management consultant. The cases are prepared by the Japanese government to assess the consulting capability of the applicants for the qualification and are assumed as quasi-real business situations, which they would face in the real world. The students read these cases and answer questions that are prepared especially for this class. With these case studies, they are expected to find and resolve issues, which leads to their practical skill acquisition. Although this approach is still in its infancy, the reaction of students has been very positive and is being presented as a case study.

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  • (Report No.25: Comparison of Policy, Law and Regulatory Issues between Financial Economics and Science & Technology)
    Hiroshi HONDA
    Session ID: 155
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The subject discussion is based on presentation by an ex-official of Bank of Japan on "Role of Central Bank: Last Line of Defense for Protecting Financial Stability" and subsequent discussion between the author and the presenter on September 10, 2021, and those by the author and an ex-speaker of House of the Representatives on July 20, 2022 in Tokyo.

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  • Kazuo KADOTA
    Session ID: 211
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Digital machine tools such as 3D printers and laser cutters are spreading to manufacturing sites and educational sites. "Advanced Lecture of Digital Fabrication" was opened in the graduated school of mechanical engineering. After students reviewed 3D CAD, they learned how to use a 3D printer and a laser cutter. As a personal assignment work, they made a drink holder and a smartphone stand. As a group assignment work, they made a toolbox and machine tools. They ware able to tackle challenges using mechanical principles such as screws and linkage mechanism. The created digital data was released in Fabble (collections of manufacturing recipes). Such practices are also examples of STEAM education.Digital machine tools such as 3D printers and laser cutters are spreading to manufacturing sites and educational sites. "Advanced Lecture of Digital Fabrication" was opened in the graduated school of mechanical engineering. After students reviewed 3D CAD, they learned how to use a 3D printer and a laser cutter. As a personal assignment work, they made a drink holder and a smartphone stand. As a group assignment work, they made a toolbox and machine tools. They ware able to tackle challenges using mechanical principles such as screws and linkage mechanism. The created digital data was released in Fabble (collections of manufacturing recipes). Such practices are also examples of STEAM education.

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  • (An example of solving with "Clockwork" and an introduction example of its importance)
    Chiaki KIKYO
    Session ID: 212
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Japan's unique "Clockwork" developed in the Edo period. The mechanism, which uses manual power, mainspring, gravity, etc., and does not use electric power or fossil energy, is very important in building a production line with SDGs. In addition, devising and practicing "Clockwork" is an important means of human resource development. At the Toyota Commemorative Museum of Industry and Technology, there is a hands-on exhibition that uses the inner race and cage assembly equipment that is actually used by Toyota Motor Corporation, manual work without using a "Clockwork" device, and easy assembly with a "Clockwork" device. As a result, the exhibition aimed at a wide range of age groups to gain new awareness of not only the importance of "Clockwork", but also that "Clockwork" devices can replace work based on intuition and tricks by combining simple movements. Not only that, we succeeded in providing an opportunity to feel more familiar with machinery and manufacturing by using simple equipment.

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  • (Production of a Simple Autonomous Driving Vehicle using the Platform "Donkey Car S1")
    Takashi YAMANOUE, Yasufumi SEKINE, Naoki KAGAWA, Masaaki KOBAYASHI, Mi ...
    Session ID: 213
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Autonomous driving technology is a broad-based technology and a growth factor for many industries. Therefore, there are high expectations for this field. In recent years, the need for engineers involved in the field of autonomous driving has increased, and the training of such engineers is urgently needed. On the other hand, recently, teaching materials for learning autonomous driving and AI, for example, model vehicles such as the autonomous driving platform "Donkey Car S1" are also on the market. Therefore, using this autonomous driving teaching material "Donkey Car S1", students were taught to learn autonomous driving by making a simple autonomous driving electric vehicle. This paper introduces an overview of this.

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  • Hiroyuki NAGAI, Kotaro MORI, Takeshi ITO, Keiichiro TAKATO, Toshihiro ...
    Session ID: 231
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    We have already discussed several models to use renewable energy in the local society. For examples, the package of artificial reef and tidal energy is effective for the resource of leisure and/or sightseeing, and in the isolated islands, Bamboo Charcoal can become a commodity as a fuel, as a filter for drinking water and so on. But these usages cannot make high profits, so it is difficult to raise funds. But in the technological history, the effective utilization of renewable energy was developed by volunteer activities of the residents. For example, until the beginning of the19th century, ship-waterwheel of the river was practical power both in Japan and Europe, and in these cases, waterwheel was shared. In short, the renewable energy is not suitable to use for profit, but to use for share. Oppositely crowdfunding (CF) replaces volunteer activities and has the functions to propel the social implementation of renewable energy. In this paper, we examine the possibility of CF to realize the social implementation of slightly profitable but highly public projects.

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  • Yasushi TAKAHASHI
    Session ID: 232
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Recently, to prevent global warming, the Japanese government has announced drastic CO2 reduction targets through scientifically and technically inappropriate plans such as the ending of internal combustion engines in automobiles and the electrification of all vehicles. The issue of global warming is not taught correctly even in elementary and junior high school education. In this paper, I tried to consider how the issue of global warming should be dealt with in a lecture of automobile engineering in the university's mechanical engineering department. In this study, in addition to literature research, a questionnaire survey was conducted for students. As a result, several points to be noted in class became clear.

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  • Hongjie ZHENG, Ryuji SHIOYA
    Session ID: 234
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Electricity is essential for modern life and has been recognized as a basic human need. Oil-immersed transformers play an important role in electrical power distribution systems. To avoid sudden power outages, it is necessary to detect internal abnormalities within transformers at an early stage. In this research, we use a Multi-layer perceptron (MLP) to predict the type of power transformer condition based on dissolved gas analysis (DGA). Stream Lit framework and Tkinter module are used to create DGA's web applications and desktop applications, respectively.

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  • Takehiro HONDA, Yoshihiro TAKAHASHI
    Session ID: 241
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    A wheel contacts with a rail on the track. Therefore, wear occurs at the contact area between the wheel and the rail. Wear on the wheel and the rail gradually progresses because the wheel and the rail contact with each other constantly. Then, periodic unevenness occurs such as wavy wear on the rail. This wear causes amplification of vibration during driving. This phenomenon leads to various problems, such as deterioration of riding comfort and noise. As a countermeasure, the rail is scraped to remove rail irregularities. However, it is costly. Therefore, if the contact conditions between the wheel and the rail that reduce wheel-rail wear are clearly, it may lead to lengthen the grinding cycle and cost saving. However, it is difficult to observe the process of shape change with time such as wear. Therefore, we focused on DEM. In this study, circular particles arranged in a regular pattern are regarded as rails in DEM. The behavior of the wheel when it runs on the rail was investigated. On the other hands, running experiments were conducted using this model, and the results of the experiments and analysis were compared. As a result, in the analysis, it was found that the vertical acceleration level of the wheel particles increases as the rail particle spacing increases. Also, in the experiment, it was found that the acceleration level increases as the wheel and rail wear.

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  • Yusuke NOZAWA, Yoshihiro TAKAHASHI
    Session ID: 242
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Earthquakes frequently occur in Japan so far. Therefore, seismic isolator is attracting attention to protect buildings. In order to reduce all direction of shakings, three-dimensional (3D) seismic isolator is needed. 3D seismic isolator is composed of isolator for horizontal direction and vertical direction. Because 3D seismic isolator can effectively reduce all shaking, it can protect people and objects in the building. If 3D seismic isolator is established, we will be closer to achieving sustainable society. However, there are not many studies on seismic isolation for vertical direction. In this study, to develop an effective vibration reduction device for vertical direction. A vibration reduction device using a nonlinear spring was invented in the past. According to experiment, devices with this mechanism were reducing vertical vibration. Analysis model is based on the device. To reduce vibration more effectively, analysis was conducted with different parameters such as spring constant or range of motion for vertical direction. Then, the differences in behavior and the effect of seismic isolation are examined from resonance curves obtained from analysis results. In addition, the experimental and analytical results will be compared to investigate the conditions necessary to improve the seismic isolation effect.

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  • Yoshihiro TAKAHASHI, Kazutora IIDA
    Session ID: 243
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Bearings are used for rotation and translation in many machines. It can be classified into ball bearings and plain bearings. Ball bearings have a problem of failing earlier than their design life. The problem is caused by a combination of multiple factors. Therefore, it is difficult to determine the cause. Accordingly, it is necessary to survey the behavior of the ball. Solving this problem would allow more accurate design life calculation and reduce bearing wear. They can keep many machines in service longer. In this study, the discrete element method (DEM) was used for the analysis. The effectiveness of the DEM will be examined by comparison with experiments. DEM is one of the effective methods because it can analyze contact and non-contact between elements. The model for the analysis is a structure with five spheres in a container. The container is composed of one cylinder or two cylinders. Calculate the displacement and rotation of the sphere by vibrating the container. The rotation of the sphere changed as a result of changing the container.

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  • Tomiya KIMUR, Midori SUGIHARA
    Session ID: 244
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In many parts of the world, the tire industry offers an effective measure to reduce CO2 emissions in the form of retread tires, which replace only the portion of the tire exposed to the road surface, but only for trucks and buses. However, due to safety issues and lack of manufacturing technology, retread tires for passenger cars are not currently available in Japan. The purpose of this study is to analyze the production cost and environmental impact of passenger car retread tires in Japan, taking into account the investment and cost of retread tires, which have lower profit margins than new tires once safety and manufacturing technology issues are resolved, and also factoring in carbon taxes, and the main objective of this study The main objective of this study is to provide a basis for determining the feasibility of the production ratio of retreaded tires to new tires for an optimal business portfolio.

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  • Makiko OKAMOTO, Susumu MATSUSHIMA, Hideaki FUKUDA
    Session ID: 251
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In this study, we organized the current state of the educational system in elementary school programming education, junior high school technology education, and technical high school in Okinawa prefecture, and conducted a questionnaire survey of educators. As a result, even if there are opportunities to learn about robots and sensors in elementary school programming education with the cooperation of manufacturing companies, about one-third of junior high schools in Okinawa cannot sufficiently learn about measurement and control. In addition, although there are many students who go on to technical high schools to learn manufacturing compared to the rest of the country, the placement of teachers at technical high schools is not sufficient, and it is assumed that the training of human resources for manufacturing in Okinawa is not functioning well.

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  • Wataru MIYAGI
    Session ID: 252
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    One terminal per student and a high-speed, high-capacity communication network were established in 2018 under the GIGA school concept set forth by the Ministry of Education, Culture, Sports, Science and Technology. Moreover, the situation in schools is now required to change at a dizzying pace, as the new coronavirus outbreak has pushed forward the target year from 2023. However, some schools and municipalities are having a tough time making the GIGA school concept a reality. In this issue, we would like to clarify the actual situation, consider the key points for success from the viewpoints of children, teachers, and administrators, and consider measures to promote the spread of the program.

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  • Noboru FUJIMOTO, Satoshi KOBAE
    Session ID: 311
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In the field of technological problem-solving study at junior high school, classes that introduced system thinking skills were conducted, and the effects were verified. As a result, the iceberg model has been shown to be effective in understanding the mechanism of power generation and issues in the power supply and demand system, and also in learning to look ahead to the future comprehensively, which is crucial in solving issues like global warming. In addition, the expression needs to be modified for students easier to understand, as the more abstract the viewpoint, it is used less frequently. It was found that by using the loop diagram step by step, it is possible to grasp the causal relationship between the elements of the power supply and demand system, to think about the power source composition with a basis, and to increase the breadth and depth of the students' thinking. Based on this result, the contents of three stages of system thinking learning using loop diagrams were devised in the technology field related to materials and their processing, nurturing living things, energy conversion and information processing in the technology course at junior high school.

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  • Yoichi SHIMIZU, Eisaku HAMADA, Makiko OKAMOTO
    Session ID: 312
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    With the support of the "Energy Education Survey Project" of the Agency for Natural Resources and Energy, the "Okinawa Energy and Environmental Education Study Group" was established in 2006. Since then, we have been conducting practical research on energy and environmental education that takes advantage of the characteristics of the Okinawa region. The members of the study group are university teachers, elementary, junior high, and high school teachers, government officials, energy-related companies. We report on the energy teaching materials (wave power generation, PET bottle windmill, energy conversion experimental equipment, model condenser car, polymer electrolyte fuel cell, model fuel cell vehicle, etc.) developed so far, as well as the implementation of visiting classes, lectures and energy-related facilities tours.

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  • (Aiming for a teaching material that nurtures high school students' ability to explore using zooxanthellae)
    Shigeo WADA, Takayuki KUMAMOTO
    Session ID: 313
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Education about environmental issues should provide students with opportunities to think deeply using intuitive and accessible education tools. In this study, we developed an experimental system using zooxanthellae related to coral bleaching as a simple teaching material for observing the environmental effects of chemical substances and observed that organic UV filters inhibit the growth of zooxanthellae living symbiotically on corals. When this material was used for educational practice in high school classes, equivalent results were obtained compared to the well-organized university laboratory environment. Based on the above, we concluded that the experimental system developed in this study can be effectively used for the inquiry-based learning in the new high school subject "Period for Inquiry-Based Cross-Disciplinary Study” or “Basic Inquiry-Based Study of Science and Mathematics”.

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  • (Example of Renewable Energy Utilization and Educational Support in Namie, Futaba District, Fukushima)
    Weichen ZHANG, Naruki SHOJI, Hideharu TAKAHASHI, Susumu OZAKI, Yutaka ...
    Session ID: 314
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Because of the occurrence of the Great East Japan Earthquake, the accident of the Fukushima Nuclear Power Station has occurred, and we had experienced unprecedented large-scale disasters centered on Fukushima Prefecture. The biggest challenge for recovery from nuclear disasters is how to equalize the risk of radiation damage to the health of residents. The quicker risk management methods for safety and security can be applied, the sooner reconstruction can be achieved. In cooperation with the town of Namie in Fukushima Prefecture, we have created a new academic field called "Fukushima Revitalizics" by combining risk communication engineering with decontamination science, robot measurement engineering and renewable energy engineering, and have trained human resources through graduate student training, support for ICT(Information and Communication Technology) education at elementary and junior high schools, and support for science, culture, and robotics classes. In this paper, the creation of Namie Town using renewable energy and educational support through Revitalizics will be reported.

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  • Yuto KIMURA, Akira HOSHI
    Session ID: 322
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Renewable energy, a domestically produced energy source, is attracting increasing attention as an important sustainable energy source in terms of improving energy self-sufficiency and reducing greenhouse gas emissions. In this regard, renewable energy utilization technologies are expected to realize sustainable development. In this research, we aim to construct a system that can collect sunlight and solar heat with a parabolic dish and generate electricity with a Stirling engine (SE). First, we evaluated the operational performance of the α-model SE, which employs a spirit lamp and an electric heater as heat sources. Finally, we executed a performance test of the constructed parabolic dish/SE combined solar thermal power generation system. As a result, when the total solar radiation amount is about 900 W/m2, a temperature difference of about 180°C is obtained between the SE heat cap and the surface of the low temperature side cylinder in about 3 minutes, and it is confirmed that the LED load lights up at an output voltage of 2V.

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  • Shogo HONDA, Akira HOSHI
    Session ID: 323
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Stirling engines do not necessarily require the combustion of fossil fuels and are therefore attracting attention as heat engines that can use a wide variety of fuels and as low-pollution equipment. Therefore, the Stirling engine is expected to be put to practical use in areas where it is difficult to utilize internal combustion engines, such as solar heat and factory waste heat. The aim of this study is to design and build a prototype Stirling engine that can be operated using low-temperature heat sources such as snow and ice. In the prototype engine, the bore of the power piston was changed to a smaller bore and experiments were carried out and discussed. As a result, it was confirmed that the continuous operation time could be improved and that the engine could be operated at a temperature difference of about 30°C. Based on these results, a larger Stirling engine using a low-temperature heat source and a non-contact power generation method will be investigated to increase the power output.

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  • Kuniko URAHIMA
    Session ID: 324
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    NISTEP conducted the 11th Survey of Scientific and Technological Foresight to develop the 6th Scientific and Technological Innovation basic plan. The research consists of Horizon Scan, Future Vision, Delphi Survey and Scenario Planning. The Delphi survey was a questionnaire and received responses from approximately 6,000 people. Based on these results, to build a desirable future society, not only the technology itself, but also elements such as the reform and introduction of systems such as laws and ethics are important for the development of technology.

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  • Toshiyasu SUEYOSHI, Satoru GIMA, Eiho UEZATO, Isao TERUYA, Wataru OSHI ...
    Session ID: 331
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    This report is a case study of a preparatory course for the Mechanical Design Engineer Examination conducted at the University of the Ryukyus. The Mechanical Design Engineer 3rd grade is an examination to evaluate and certify one's technical level. The subjects of the examination correspond to the required subjects of mechanical engineering. Examinees can check their own learning level, which is expected to improve their motivation for learning. The contents of this report include the method of implementation of the preparatory course, the number of examinees, and the passing rate. In addition, opinions from the students will also be presented.

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  • Keiichiro TAKATOT, Susumu SHIRAYAMA
    Session ID: 332
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In recent years, commercial mass production of mechanical parts has been realized using powder 3D printers. However, the FDM (Fused Deposition Modeling) type 3D printers used in industrial education are often used only to roughly confirm the actual shape. This is due to suffering from decrease in molding accuracy owing to such as distortion caused by the thermal expansion characteristics of the material and the effects of the relative humidity. In other words, the problem is that machine parts designed with 3D CAD often do not faithfully reproduce the actual shape. Therefore, evaluation of molding accuracy is necessary to ensure the function of the machine itself in case that the machine parts created by the FDM type 3D printer are combined to produce a machine. In this paper, we propose a method to evaluate the quality of mechanical parts by means of a machine learning that uses the results of simple shape measurements and strength tests.

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  • Kazuyoshi WASEDA
    Session ID: 341
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In recent years, 3D printers have become popular in universities and technical colleges. The advantage of 3D printers is the performance to manufacture the complex shapes. However, students often use it as a substitute for complicated manual machining because they do not have their machining skills. It is important to make young students aware of the importance and value of additive manufacturing, which is a new machining method such as 3D printers. Incidentally, the topology optimization attracts attention in study of the structure shape optimization. Moreover the topology optimization have a high affinity with 3D printers. In this study, I developed teaching materials for implementing CAE/CAM training including topology optimization in machine practice subject at department of mechanical engineering in Kobe City College of Technology, using open source 3D modeler.

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  • Ryouji KONDOU, Masato GANEKO, Noriyoshi MIYAGI
    Session ID: 342
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The management method of lectures on mechanical design and drafting, which are lectures with exercises is study in detailed, through the actual confirmation work by students in the author's laboratory regarding the selection criteria and results of the tasks and teaching materials in distance lectures, considering the Corona Disaster. In addition, the author collaborated with the university and technical staff in the actual class management. Here, the effectiveness of the collaborative management of distance lectures between faculty members and technical staff is described.

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  • Yoichi SUGIMOTO
    Session ID: 343
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Diversity is emphasized in terms of responding to change and creating innovation. However, if we only expect the positive aspects of diversity and do not deal with the negative aspects, we would be unable to utilize diversity fully. Therefore, we focused on cognitive style as a fundamental element that creates deep-level diversity. Since 2012, the author and other faculty members have developed an educational program that uses Jungian psychological type theory to understand the differences in cognitive styles of oneself and others and to use it in collaboration. In 2018, it was introduced as a compulsory "Teamwork Exercise" subject for first-year students in the Faculty of Creative Engineering of Kagawa University. The characteristics of the subject are as follows: "Development of metacognition to self-understanding, understanding of others, and tolerance," "Low-end using way of Jungian type theory," and "Thorough observance of ethics in the use of type theory." Similar teamwork education has not been seen in previous studies. This report reported the overview (e.g., development background, characteristics, curriculum, implementation results) as of 2021, which has been improved since its introduction, and the verification results of educational effects (e.g., promotion of self-understanding, promotion of understanding of others, improvement of tolerance).

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  • Keisuke YOSHIDA
    Session ID: 351
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    In order to know current situation of the preservation and utilization of the items recognized as The Mechanical Engineering Heritage by JSME, which has been done since 2007fy, seven recognized items arbitrarily selected in the other area than Fukuoka Prefecture are surveyed and reported. All the items are good condition and satisfied situation of the utilization except for two items. One item out of the two problematic items can be resolved by our proper actions. However, it is very difficult to resolve the problem on the other item.

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  • Hiromichi OBARA, Naoto MATSUNO
    Session ID: 353
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Mechanical organ perfusion technology, in which organs are perfused outside the body, is attracting worldwide attention as a technology that supports transplant medicine. This technology can reliably preserve transplanted organs, recover their functions, and evaluate them, and it holds great promise for future in-vitro therapies, organ culture, and even food production. This report introduces the history of organ mechanical perfusion technology, starting from the extracorporeal perfusion device developed by Alexille Carrel, a Nobel Prize-winning surgeon for vascular anastomosis, and Charles Lindberg, an engineer famous for his non-stop crossing.

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  • Tadashi FUJIO
    Session ID: 354
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    Foreign ships came into the territorial seas in the late Edo period forced the shogunate to revitalize the plan of defending the country. Defending with cannons was planned as a strategic choice and manufacturing of cannons was promoted. Material processing especially under manufacturing of cannons has already been researched. Cannons require structures for their deployment, which were mainly batteries called Daiba. They were constructed on the sea and by the seashore all over the country. This series of research mainly focuses on material processing under manufacturing related to coastal defence. Cannons and batteries are generally deployed in an integrated plan, so how they were deployed relatedly composes another important issue. Defending by firing also requires defending against firing and supplying for firing, components for which also had to be deployed between multiple cannons on batteries. The aim of this paper is to research the historical system of defengding and manufacturing.

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  • Kenkichi SATO
    Session ID: 355
    Published: 2022
    Released on J-STAGE: June 25, 2023
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    The author has proposed the new concept of "the history of the future" (History of future, or Future history) after discussions on "the history of technology". The latter is mainly to examine the background & society in the technology developed in the past. And, that is to be viewing "the future states through the past experience". The former is stronger meaning than the latter in the point of view to examine the difference between the present & future situations, and also focuses into the history of the activities done to solve the problems in the present state in meaning as "challenge" for the future. The author has discussed on the difference between the two histories in the case of Isambard Kingdom Brunel in the Victorian civil engineer.

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