Waseda University · Environmental Science
Professor Yiyi Ju's research lab focuses on sustainable development and low-carbon transition in key industrial sectors, with a strong emphasis on life cycle assessment, resource recovery from end-of-life vehicles, and policy-oriented analysis of industrial decarbonization. The lab investigates the recyclable resource potential of passenger vehicles, particularly plastics and metals, under evolving vehicle design trends and policy frameworks. It also explores technology upgrading pathways in heavy industries such as cement, and evaluates multi-dimensional barriers to net-zero transitions in national contexts, especially in China and Japan.
Figures are computed from collected data and may differ slightly.
The contradiction between limited resources and rapid development in the automobile industry has been driving society to seek the supply of recyclable resources from End-of-Life Vehicles (ELVs). It has become an urgent need for vehicle recycling policymakers to have an overall understanding of the end-of-life (EoL) vehicle population, as well as for vehicle producers to note what and how they can benefit from ELV recycling. This paper estimated the potential population of EoL passenger vehicles,
The online version contains supplementary material available at 10.1007/s11625-021-00905-2.
The sustainable development of the western region of China has always been essential to the national development strategy. The Western region has undertaken an industrial transfer from the Eastern and Central regions. Therefore, the CO2 emission intensity in the western region is higher than those of the Eastern and Central regions of China, and consequently its low-carbon development pathway has an important impact for China as a whole. Sichuan Province is not only the province with the highest
A rapid increase in the number of end-of-life (EoL) passenger vehicles has led to a large amount of waste plastics in China. However, the scale and efficiency of recycling resources from EoL vehicles still restricts the sustainable and healthy development of the automotive industry. The current behavior of automotive/recycling industry entities, as well as the strategy of waste management policymakers, may depend on the potential of total recyclable resources. To reveal such recycling potential
The cement industry in China has been conducting overcapacity elimination through technology upgrading in the past years. Most of the overcapacity elimination policies are in the form of administrative and regulative approaches. However, the cost of overcapacity elimination by implementing command-and-control policies will be increasingly higher, at the same time, the orientation of such technology upgrading remains unknown. Such contradiction creates the necessities to reveal the impact of othe
Due to its long-term negative health effects and increasing emissions, the PM2.5 issue has caused rising concerns in recent years. Although official media from East Asian countries tend to avoid blaming PM emission sources on their neighboring countries, researches have proved the existence of pronounced long-range trans-boundary particulate matters transported by nature force and by human activities. In this context, this paper included the structural path analysis (SPA) to quantify trans-bound
Abstract Many governments and non-state actors have pledged to achieve net-zero greenhouse gas emissions, raising questions about the feasibility of these decarbonization goals. The existing literature, however, mostly relied on technoeconomic assessments and lack broad contextual considerations such as national conditions and local sociocultural characteristics. Here, we present a framework for assessing perceived feasibility and multi-dimensional barriers for net-zero transition that can compl
The rapid expansion of electric vehicles (EVs) in China will induce a potential imbalance in the demand and supply of critical metals, which emphasized the importance of recycling critical metals. Evaluating their stock and recycling potential is essential to the electrification transformation in the automobile industry and provides references to the overall national resource strategy. In this study, we identified the critical metals in the electrification transformation of the automobile indust
Japan’s energy transition towards carbon neutrality by 2050 will require a shift from fossil fuel energy on the energy supply side. The introduction of new power generation capacities and infrastructures will then lead to increasing demand for materials and industrial products. To capture such industrial energy service demand, we conducted a soft-linking between an integrated assessment model (GCAM) with an input–output framework (IONGES), considering both inter-model and inter-period iteration.
Open papers in the app to read, cite, and organize with AI.