A5069425751- Fusion materials and technologies
- Nuclear materials and radiation effects
- Nuclear Materials and Properties
- Muon and positron interactions and applications
- Advancements in Battery Materials
- Extraction and Separation Processes
- Climate variability and models
- Flood Risk Assessment and Management
- Hydrology and Watershed Management Studies
- Chemical Synthesis and Characterization
- Meteorological Phenomena and Simulations
- Membrane-based Ion Separation Techniques
- Advanced Battery Materials and Technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Recycling and Waste Management Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Tropical and Extratropical Cyclones Research
- Cryospheric studies and observations
- Landslides and related hazards
- Nuclear reactor physics and engineering
- Particle accelerators and beam dynamics
- Physics of Superconductivity and Magnetism
- Magnetic confinement fusion research
- Microwave Dielectric Ceramics Synthesis
National Institutes for Quantum Science and Technology
2016-2024
Civil Engineering Research Institute for Cold Region
2021-2024
Hokkaido University
2020-2023
Kyoei University
2023
Fusion Academy
2018
Japan Atomic Energy Agency
2008-2017
Tokyo Institute of Technology
2016
Life Science Institute
2016
The University of Tokyo
2002-2007
Advanced Science Research Center
2004
The design progress in a compact low aspect ratio (low A ) DEMO reactor, ‘SlimCS’, and its issues are reported. study focused mainly on the torus configuration including blanket, divertor, materials maintenance scheme. For continuity with Japanese ITER-TBM, blanket is based water-cooled solid breeder blanket. vertical stability of elongated plasma high beta access, segmented into replaceable permanent blankets sector-wide conducting shell arranged inbetween these blankets. numerical...
Lithium (Li) procurement is becoming a matter of importance worldwide. Herein, I propose method for recovering Li from seawater by using world-first dialysis, wherein only permeates the negative electrode side to positive through ionic superconductor functioning as separation membrane (LISM). Measurements ion concentration at function dialysis duration showed that recovery ratio increased approximately 7% after 72 h with no applied electric voltage. Moreover, other ions in did not permeate...
Abstract To evaluate the impacts of global warming on local‐scale extreme precipitation in Japan, 720‐year ensemble dynamical downscaling is conducted by a regional climate model with 5 km grid spacing. Our based large data set called database for Policy Decision making Future change (d4PDF). Comparing historical and 4K climates, annual maximum daily hourly are enhanced over Japan due to warming. The increasing rate larger coast Pacific Ocean eastern western northern parts Japan. periods...
The development of tritium breeder, neutron multiplier and flow channel insert materials for the breeding blanket DEMO reactor is reviewed. Present emphasis on ITER test module (TBM); lithium metatitanate (Li2TiO3) orthosilicate (Li4SiO4) pebbles have been developed by leading TBM parties. Beryllium selected as multiplier. Good progress has made in their fabrication; however, verification design experiments planning stage. Irradiation data are also limited, but decrease thermal conductivity...
Increasing demands of lithium (Li) for lithium-ion batteries (LIBs) call efficient Li extraction methods from natural resources and used LIBs. In this study, we efficiently extract a Li-containing solution via electrodialysis using fast ion conductor, lanthanum titanate (LLT, Li0.29La0.57TiO3), as separation membrane. Here, the LLT surface was modified by immersing in strong acid such hydrochloric to adsorb ions. For mixed alkaline hydroxide, sodium potassium hydroxide with 0.1-M...
Lithium titanate with excess lithium (Li2+xTiO3+y) is one of the most promising candidates among advanced tritium breeders for demonstration power plant reactors because its good release characteristics. However, breeding ratio (TBR) Li2+xTiO3+y smaller than that e.g., Li2O or Li8TiO6 lower Li density. Therefore, new Li-containing ceramic composites both high stability and density have been developed. Thus, this study focused on development a solid solution characteristic. The solid-solution...
Previous studies have shown that the acceleration of global warming will increase intensity rainfall induced by tropical cyclones (TCs) (hereinafter referred to as “TC-induced rainfall”). TC-induced is affected TC position and topography (slope shape direction). Thus, expected vary sub-basin due varying topographies. However, these relationships not been explained, historical TCs, which occurred several decades earlier, do exhaustively encompass all positions could potentially affect each...
Hydraulic quantities governing the generation of bedforms (formed spontaneously on bottoms rivers) have been investigated through geomorphological methods, laboratory experiments, stability analyses, numerical and other research methods. Recently, analysis has conducted using fine spatial grids to accurately describe morphodynamics. However, cannot always real phenomena, because it is based assumptions. One effective way verify physical assumptions compare with actual measurements equivalent...