A5023260860- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Biodiesel Production and Applications
- Synthesis and pharmacology of benzodiazepine derivatives
- Laser-induced spectroscopy and plasma
- Catalytic Processes in Materials Science
- Hybrid Renewable Energy Systems
- Synthesis and Catalytic Reactions
- Laser Design and Applications
- Chemical Reaction Mechanisms
- Oxidative Organic Chemistry Reactions
- Asymmetric Synthesis and Catalysis
- Heat transfer and supercritical fluids
- Hydrogen Storage and Materials
- Plasma Applications and Diagnostics
- Genetic factors in colorectal cancer
- Fuel Cells and Related Materials
- Chemical Reactions and Mechanisms
- Vehicle emissions and performance
- Chemical Synthesis and Reactions
- Organic Chemistry Cycloaddition Reactions
- Energy and Environment Impacts
- Gastric Cancer Management and Outcomes
- Analytical chemistry methods development
- Synthesis and Biological Evaluation
National Institute of Advanced Industrial Science and Technology
2013-2022
Energy Institute
2015
Kyoto University
1997-2012
Tokyo Metropolitan Institute of Medical Science
2009
Toppan (Japan)
2005
Hokuriku University
1981-1987
The development of renewable energy technologies is essential to achieve carbon neutrality. Hydrogen can be stably stored and transported in large quantities maximize power utilization. Detailed understanding the characteristics operating methods water electrolysis technologies, which naturally intermittent fluctuating used directly, required for green hydrogen production, because power-driven processes significantly differ from industrial driven by steady grid power. Thus, it necessary...
The potential of Ru/CeO2 catalysts to catalyze the synthesis ammonia from renewable hydrogen was explored under ambient and high-pressure conditions. Different types Ru precursors, CeO2, their combinations strongly influenced NH3 activity. catalytic activities Ru(acac)3 Ru(NO)(NO3)3 were relatively high at pressure. activity 1 wt% with as a precursor studied dependence on temperature, pressure, space velocity, H2/N2 ratio investigated. parameter dependences differed somewhat between...
The hydroxylation behaviour of benzene and toluene were studied using a micro-plasma reactor, where an atmospheric non-thermal plasma was generated by dielectric barrier discharge (DBD). results indicated that oxidation products primarily consisted phenol C4-compounds for hydroxylation, whereas cresol, benzaldehyde, benzylalcohol detected hydroxylation. By taking into consideration the reaction mechanism in these classified (1) aromatic ring functional group on (2) cleavage or dissociation ring.
The breakdown plasma and successive flow leading to combustion are controlled by the combination of a nano-second Nd:YAG laser femto-second Ti:Sapphire (TiS) laser. behaviors captured an intensified charged coupled device (ICCD) camera high-speed schlieren optical system. TiS determines initial position supplying electrons in axis focusing YAG pulses. We show that can be incident In addition, ignition lean limit flammable mixture changes depending on position, which is influenced hot gas...
In order to analyse dynamic behaviours of hydrogen production by alkaline water electrolysis against fluctuating electric power, we developed a large-scale electrolyzer simulator. The measurement data 150-kW were used in the development simulator model. this study, first, model constants relevant heat balance system determined based on experimental obtained operation electrolyzer, simulate generation process over an extensive duration. results showed that can predict temperature period 24 h....
Thermolysis of the 1H-1,2-diazepines having an electron-donating substituent in 4- or 6-position affords corresponding 1,3-diazepines, whereas 1,2-diazepines electron-withdrawing substituents do not show this ring-conversion.
Natural gas engines have been attracting a lot of attention recently due to the development unconventional natural sources. Achieving lean burn with supercharging is necessary attain high thermal efficiency. Conventional spark plugs face difficulties ignition because pressure and air/fuel mixture. This paper describes studies on laser which has investigated at AIST as an alternative method for achievement stable under such conditions. The extension limit improvement in efficiency are...
The recent strict emission regulations and the necessity to reduce global CO2 levels have promoted research studies over alternative fuel combustion technologies. Dual technology is a fascinating approach as it could combine benefits of two fuels achieve high thermal efficiency with lower harmful emissions. Natural gas burns cleaner than other fossil its low price makes an attractive near-term solution. utilization natural diesel in compression ignition engine can result performance However,...
Thermolysis of various 4- and/or 6-methyl-1, 2-diazepines (12a, b and 18a-e), prepared from pyridine lutidine N-imides (11 17a-d) having a methyl group in the 3-position, gave corresponding 1, 3-diazepines (13 19) 2-aminopyridine derivatives (14 20), whereas (9a-d) no or 6-position only parent (8) 3-diazepines. Heating 2, 3-diazabicyclo [3. 2. 0] hepta-3, 6-dienes (21a, b) formed by irradiation also (13a 19b).
A 60-year old man with a 10-year history of multiple system atrophy (MSA) was found in respiratory arrest. After 4 months support two episodes septic shock, he died. Autopsy disclosed severe the mesencephalon, brainstem, medulla oblongata and cerebellum. Gallyas–Braak, α-synuclein ubiquitin-positive inclusions cytoplasm glial cells were evident, despite ischaemic damage due to arrest subsequent for months. The cause not identified, but could be explained by natural MSA. bereaved family, who...
The thermolysis of 1, 2-diazepines (7a-f and 11) having an electron-donating substituent in the 4- or 6-position resulted formation 3-diazepines (9 12) 2-aminopyridines (10), whereas (7g-k) electron-withdrawing same position gave only (10) no 3-diazepines. However, 3-, 5-, 7-substituted with either or-withdrawing did not give Heating bicyclic compounds (8) also corresponding Based on these results, we concluded that presence is essential for this ring-conversion into These effects reaction...
Homogeneous charge compression ignition (HCCI) engines are potentially high-efficiency, low-polluting alternatives to conventional internal combustion engines. However, the usable operation range of these is limited by too rapid for high-load operation. The brought simultaneous over cylinder volume. An attempt suppress it has been tried realizing stratified temperature or fuel distribution in cylinder. In this paper, possibility pulsed dielectric-barrier discharge (DBD) irradiating air/fuel...
The photo-sensitized oxygenation of monocyclic 1H-1, 3-diazepines (6) gave several fragment products (7-12). 3-Pyrrolin-2-one derivatives (7 and 8) ethyl aminoformates (9 10) are assumed to originate from the initially formed 4, 7-endoperoxides (13), vinylaminoformates (11 12) 5-dioxetanes (14).