Shoki Kosai

Automobile companies have attempted to achieve a transition of vehicle types from internal combustion engine vehicles (ICEVs) to new-generation vehicles (NGVs). Many studies have addressed the resource-related issues of vehicles. Despite the significant attention to the potential impacts of resource use in the LCIA narrative, the volume of natural resource exploitation has yet to be fully investigated. In this study, the concept of total material requirement (TMR), which is an indicator for asse

A transition in vehicle types has caused an increase in demand for traction batteries such as lithium-ion batteries (LIBs). Studies assessing the impacts of mineral resources for traction LIB production in the life cycle assessment have been increasingly growing, but without sufficiently considering the volume of natural resource exploitation in the lithosphere. To evaluate the volume of natural resource use for traction LIB production, this study focuses on the land disturbances caused by minin

Although metals are fundamental to the economy and human well-being, natural ore depletion is inevitable with the continuation of mining. Awareness of the importance of new developments in technologies to process natural ores and to recycle waste materials to obtain pure metals with high efficiency has been growing over time. The microwave-based furnace, which heats samples rapidly, uniformly and selectively, has recently been given more attention as an alternative to the conventional heating sy

The use of life cycle assessments to estimate the environmental impact of nuclear power generation has become increasingly common. Despite this, the volume of resource extraction in the lithosphere has not been sufficiently considered. In this study, the total material requirement (TMR) was used as an indicator in an analysis of the life cycle resource use of nuclear power generation, and the uncertainty associated with the grade of the uranium ore was evaluated. It was found that the resource u

Nuclear energy utilization became an emerging issue in the global energy security agenda after the Fukushima nuclear accident. Thus, it is crucial to develop a multifaceted measure to assess the performance of security of nuclear energy supply and to aid policy decisions relevant to nuclear energy utilization. For this purpose, quantitative evaluation method for security of nuclear energy supply has been investigated. Indicators which are associated with security of nuclear energy supply are ide

A steady rise in the ownership of vehicles in Malaysia has drawn attention to the need for more effective strategies to reduce the emissions of the road transport sector. Although the electrification of vehicles and replacing petrol with biofuel are the strategies being considered in Malaysia, these strategies have yet to be fully evaluated from an environmental perspective. In this study, a life cycle assessment was conducted to compare the greenhouse gas emissions of different types of transpo