Naoya Sakoda
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View article: Serine clamp of Clostridium perfringens binary toxin BECb (CPILEb)-pore confers cytotoxicity and enterotoxicity
Serine clamp of Clostridium perfringens binary toxin BECb (CPILEb)-pore confers cytotoxicity and enterotoxicity Open
BEC (CPILE) is a virulence factor of the pathogen, Clostridium perfringens, which has caused foodborne outbreaks in Japan. BEC is a binary toxin that comprises the enzymatic A-component (BECa) and the B-component (BECb); the latter forms a…
View article: Editor’s Preface for the Special Issue on Asian Thermophysical Properties Conference (ATPC2022)
Editor’s Preface for the Special Issue on Asian Thermophysical Properties Conference (ATPC2022) Open
View article: PvT Properties and Thermodynamic Property Correlations for the Low Global Warming Potential Hydrofluoroolefin Refrigerant R-1132a (1,1-Difluoroethene)
PvT Properties and Thermodynamic Property Correlations for the Low Global Warming Potential Hydrofluoroolefin Refrigerant R-1132a (1,1-Difluoroethene) Open
View article: Reliability of Lumped Thermodynamic Hydrogen Fueling Model under Slow-Fill Conditions
Reliability of Lumped Thermodynamic Hydrogen Fueling Model under Slow-Fill Conditions Open
This study verifies the reliability of lumped thermodynamic fuel cell electric vehicle (FCEV) tank model under considerably slow-fill conditions. Many countries put efforts into research and development of FCEVs. As part of the efforts, th…
View article: Thermodynamic properties of binary mixtures of Trifluoroethene (HFO1123) + 2,3,3,3-Tetrafluoroprop-1-ene (HFO1234yf).
Thermodynamic properties of binary mixtures of Trifluoroethene (HFO1123) + 2,3,3,3-Tetrafluoroprop-1-ene (HFO1234yf). Open
View article: Thermodynamic modeling of hydrogen fueling process from high-pressure storage tank to vehicle tank
Thermodynamic modeling of hydrogen fueling process from high-pressure storage tank to vehicle tank Open
View article: Thermodynamic Calculations of the Critical Points of the H2–CO2–CH4–CO–H2O System
Thermodynamic Calculations of the Critical Points of the H2–CO2–CH4–CO–H2O System Open
View article: Thermal analysis of high-pressure hydrogen during the discharging process
Thermal analysis of high-pressure hydrogen during the discharging process Open
View article: Estimation of temperature and pressure in tanks while refueling natural gas vehicles
Estimation of temperature and pressure in tanks while refueling natural gas vehicles Open
View article: Numerical Study on Characteristics of High-Pressure Hydrogen Gas Flow in a Critical Nozzle
Numerical Study on Characteristics of High-Pressure Hydrogen Gas Flow in a Critical Nozzle Open
Critical nozzles have been proposed as one of flowmeters that can be used under high-pressure conditions with stagnation point pressure of 70 MPa or more and can measure with high accuracy. The critical nozzle is a device for measurement o…
View article: Vapor-Liquid Equilibrium Measurements of Binary Refrigerant Mixtures Composed of R1123, R1234yf and R32
Vapor-Liquid Equilibrium Measurements of Binary Refrigerant Mixtures Composed of R1123, R1234yf and R32 Open
View article: Prediction of Hydrogen Temperature with Heat Convection from Pipe Wall Surface
Prediction of Hydrogen Temperature with Heat Convection from Pipe Wall Surface Open
View article: Vapor-liquid equilibrium measurements of HFO refrigerant mixtures.
Vapor-liquid equilibrium measurements of HFO refrigerant mixtures. Open
Hydro-fluoro-olefins (HFOs) and their mixtures are expected to be the alternatives of hydro-fluorocarbons (HFCs) as low global warming potential (GWP) refrigerants. Vapor-liquid equilibrium (VLE) data of HFO mixtures are highly required fo…
View article: Behavior of the change in vessel during discharging hydrogen through an orifice
Behavior of the change in vessel during discharging hydrogen through an orifice Open
View article: Measurement of Sound Speed in High Pressure Hydrogen with a Spherical Acoustic Resonator
Measurement of Sound Speed in High Pressure Hydrogen with a Spherical Acoustic Resonator Open
A spherical acoustic resonator was adopted to measure the sound speed in hydrogen to evaluate the derived properties calculated from an equation of state (EOS). The EOS was developed mainly based on experimental PVT properties because of a…
View article: Thermal Radiation Calculation in Fire Emergency in Hybrid Hydrogen-Gasoline Fueling Station
Thermal Radiation Calculation in Fire Emergency in Hybrid Hydrogen-Gasoline Fueling Station Open
Presently, hybrid hydrogen-gasoline fueling stations are being constructed at every region of Japan. The hybrid station is more dangerous than a simple hydrogen station, especially in the case of a fire in the gasoline tank. The fire incre…
View article: Development of Gas Viscosity Measurement System with Vibrating Wire Method
Development of Gas Viscosity Measurement System with Vibrating Wire Method Open
高圧・高温の条件下における水素の粘性係数を測定することを目的とし，少量の試料で測定可能な振動細線法を用いた粘性係数測定装置を1 MPa以下の低圧域を対象として新たに開発した．本研究で採用した振動細線法では磁場中に設置した半円型ワイヤに交流電流を流し，その振動の減衰と気体の粘性の関係から粘性係数を算出する方法である．半円型ワイヤにはタングステン，磁石はサマリウムコバルトを使用した．この装置を用いて，室温と50°C，圧力1 MPa以下の条件で，測定の重要なパラメータである内部摩…
View article: D141 Influence to the Temperature Increase of Hydrogen by Shape of Vessel in Vehicle during Filling of Hydrogen
D141 Influence to the Temperature Increase of Hydrogen by Shape of Vessel in Vehicle during Filling of Hydrogen Open
Recently, CO_2 emitted by motor vehicles are getting worse the global warming. Therefore, a lot of studies are being conducted all over the world for developing the FCV(Fuel Cell Vehicle). In this study, we focus on an effect of a tank sha…