The main objective of Frontier in Education Committee is to discuss the Engineering Education at higher education institutions in Japan and to publish the good effort in Education. This paper introduces recent activities of the Frontier in Education Committee.
The main objective of HEE is to examine the direction in which electrical engineering should move in the years ahead by studying the past. Electrical engineering history constitutes the basis of technologies that we should develop. It is the starting point from which we should approach the future. This paper introduces recent activities of the committee.
This report briefly presents activities of Technical Committee on Electromagnetic Theory (EMT), IEEJ. Our committee is now implementing the activities on 2017, which includes four times of the committee meeting and three times of technical meeting. The report also contains three research topics presented in the technical meeting on EMT.
The technical committee on electromagnetic compatibility (EMC) was established under the Fundamentals and Materials Society (FMS), the Institute of Electrical Engineers in Japan (IEEJ) in 1999. Since then, researches and investigations related to this field have been conducted actively in the committee. In this report, historical trends and current activities of the committee are summarized.
Recent plasma technolgy has been used in various areas involving organic/inorganic materials processing, environmental protection, biology, medicine, nuclear fusion, and propulsion. This review describes recent progress in plasma science and technology.
Pulsed electromagnetic energy, which is usually used as an intense electric field, a large magnetic field, a high temperature, a high pressure etc., is capable of producing an extreme state as unique reactive fields. This paper reviews the recent progress on pulsed power generators, physics in high-energy-density states, high-energy particle beams, high power electromagnetic wave, and industrial applications to environment, agriculture, food processing and medical treatments.
The survey committee “Research on Electrical and Chemical Behavior of Insulating Liquids and Product Application Techniques” conducted research and study on practical applied technology and future trend of liquid dielectric in the three years up to September 2015 will be reported.
This article reports the topics of the field in light application and visual science, the activities of the technical committee (TC-LAV) and the introduction of research of technical meeting on light application and visual science of IEEJ.
Instrumentation and measurement technology is very important for establishment of standards, evaluation and of equipment, development of multi-functional bioinstrumentation sensors, and other needs which span our society. The IEEJ Technical Committee on Instrumentation and Measurement has explored key technologies in this field through technical meetings and research committees. Its recent activities and some leading research results are presented.
This is a review of the 8th International Symposium on Electrical Insulating Materials (ISEIM 2017) hosted by Technical Committee on Dielectrics and Electrical Insulation (TC-DEI) in IEEJ and technically cosponsored by IEEE DEIS (Dielectrics and Insulating Material Society) in order to overview the research trend in this specific field. The proceedings booklet will be available at the IEEJ office.
In this paper we will review future technologies based on superconducting electronics, which include quantum computers, high-performance general-purpose computers, quantum communications, biomagnetic measurements, drug delivery, geological exploration, radio astronomy, and so on. We will briefly show the present status and future trends of researches in these cutting-edge research areas.
This article firstly outlines organization and activities of the Technical Committee on Magnetics, followed by introduction of recent technological collaboration within and out of the Institute of the Electrical Engineers of Japan. The area of collaboration includes power electronics, electromagnetic compatibility (EMC). Event collaboration with the IEEE Magnetics Society is also fruitful especially for students.
We propose an educational tool for foundation of electricity using conductive pens. Electrical leads for an experiment were drawn on the ink-jet printing paper using silver ink marker. Electrical resistances were drawn by two kinds of pens; one was the same silver ink marker and the other was a carbon ink brush pen. A combined resistance was measured and compared with the calculated value. The relative error was less than ±1% in both series and parallel connection with the resistances drawn by the carbon ink brush. Therefore, this is useful to experience and learn the foundation of electricity.
Deterioration of insulating paper for pole transformer has been examined by accelerated aging test to around 200°C. However, its deterioration behavior at higher temperature loading should be studied separately because of the different decomposition reactions. At temperature range between 300-400°C, the weight loss is significant and reached over 70% with increase of the carbon content, which could be functional as an indicator to estimate deterioration at high temperature. The insulation resistance was rather increased at 300°C and decreased over 400°C along with carbonization. On the other hands, the tensile strength was quickly weakened even with heating for 1, 5, 10 min at 300°C, suggesting that physical damage of the paper occurs much faster than the loss of the insulation property. The damaged paper would be easily teared, increase sludge in transformer, and be a potential reason for insulation breakdown.
Measurements of discharge currents due to the sparks between parallel disc electrodes with a micro-gap were conducted at charge voltages of 500 V and 4000 V in order to investigate the applicability of Rompe-Weizel's and Toepler's formulae, which reveals that the measured results agree well with those simulated by the Matlab for both the formulae in view of the corresponding “product of spark constant and spark length”.