Jeongsoo Yu

In recent years, with the rapid spread of next-generation vehicles (NGVs), China, Japan, and South Korea (CJK) have been leading the development of vehicle batteries. As development strategies and policy trends of NGVs battery are changing in CJK, the competition among battery manufacturers is expected to become more intense in the future. However, there are few international comparative studies on the development policy, production, and sales of NGV batteries in CJK. Based on the review and inv

In Indonesia, plastic constitutes the second largest component of municipal solid waste; however, 58% remains uncollected. Most plastic recycling depends on informal sectors, accounting for only 10% of the total, leaving the remainder to potentially harm the environment. This paper analyzes how cities in Indonesia have tackled their plastic waste problems from the perspective of the integrated sustainable waste management framework. This study focuses on plastic waste management (PWM) in three c

Rapid urbanization combined with increases in per capita income have led to the world's motorization. Car manufacturers have been increasing their outputs in response to demands for fuel-efficient cars. New-generation vehicles (NGVs) like hybrid and electronic vehicles have emerged with significantly reduced weights and robust computerized systems. Likewise, the use of efficient batteries like nickel–hydrogen or lithium-ion batteries has been integrated into NGVs. Expectedly, a large volume of t

This research aims at revealing the current status of the End-of-Life Vehicle (ELV) recycling systems in the European Union (EU), Japan and China which are known to have big vehicle manufacturers. The purpose of this research is to clarify their characteristics and issues, such as existing ELV recycling policy, limitations of Extended Producer Responsibility (EPR) and environmental problems caused by secondhand car export. Japanese ELV recycling system will be analyzed as a specific example. Aut

本研究は主に大都市地域から排出される一般廃棄物の固形燃料化と発電および熱回収における環境負荷と社会的な経済性を既存システムである清掃工場との比較分析を行い, 未利用エネルギーシステムとしての有効性の総合評価を試みた。固形燃料化システムは, 現在のプロセスであれば, 環境負荷が多くなっているため, 製造, 焼却施設のプロセスの改善が要求されるが, 高効率のエネルギー回収が可能であり, 生産エネルギー一単位あたりの環境負荷は少ない。経済的な面でも省エネルギー効果, 環境汚染物質削減効果といった社会的附加便益を加えると十分有効であると判断される。

In recent years, the ocean plastic waste problem has become a worldwide concern, especially after more and more people saw the picture that shows the straws stabbed into sea turtles’ noses or the dead whales with a massive amount of plastic packaging in their stomachs. The USA and Japan consume massive amounts of disposable plastic products every year, and most of the waste plastic products are exported to China instead of being recycled domestically. From January 2018, affected by China’s ban o

In this era of globalization, with social problems extending across social and geographical boundaries, partnerships between governments and international organizations are key to achieving the Sustainable Development Goals (SDGs). Agriculture is essential to reducing poverty in Cameroon. Since 2002, the Japan International Cooperation Agency (JICA) has contributed to agricultural development through various projects in Cameroon. However, research has not been conducted to determine the contribu

Recently, most countries have been trying to reduce CO2 emissions and achieve highly efficient recycling of resources to achieve the Sustainable Development Goals (SDGs). To boost these movements, we need to rethink integrated waste management based on reducing the proportion of incineration and increasing the recycling rate. Japan’s recycling policy is based on the principle of extended producer responsibility (EPR). In other words, various players such as arterial and vein industries, governme

Jeongsoo Yu1, Jia Che2, Michiaki Omura3 and Kevin Roy B. Serrona4 1Department of Interregional Environmental System, Graduate School of International Cultural Studies, Tohoku University 2Japan Society for the Promotion of Science Research Fellow, Department of Interregional Environmental System, Graduate School of International Cultural Studies Tohoku University 3Innovation Research Center for Agricultural Sciences Graduate School of Agricultural Science, Tohoku University 4Asian Automotive Envi