A5005297304- Catalysts for Methane Reforming
- Advancements in Solid Oxide Fuel Cells
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- Nuclear materials and radiation effects
- Membrane Separation and Gas Transport
- Airway Management and Intubation Techniques
- Catalysis and Hydrodesulfurization Studies
- Hydrogen Storage and Materials
- Cardiac, Anesthesia and Surgical Outcomes
- Electrocatalysts for Energy Conversion
- Hybrid Renewable Energy Systems
- Magnetic and transport properties of perovskites and related materials
- Fusion materials and technologies
- Glass properties and applications
- Advanced materials and composites
- Catalysis and Oxidation Reactions
- Anesthesia and Sedative Agents
- Cardiovascular Function and Risk Factors
- Tracheal and airway disorders
- Spacecraft and Cryogenic Technologies
- Electronic and Structural Properties of Oxides
- Carbon Dioxide Capture Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Advancements in Battery Materials
The University of Tokyo
1987-2024
Tokyo Gas (Japan)
2006-2018
NGK Spark Plug (Japan)
2008
Higashi Nagoya National Hospital
1996
Shimane University
1992
Tohoku Rosai Hospital
1978-1992
Tokyo Medical and Dental University
1987
Tohoku University
1975-1987
Yasuda Women's University
1984
Tufts University
1973-1978
Forty-five patients with acute transmural myocardial infarction and angiographically confirmed complete coronary occlusion were prospectively randomized, two for one, to treatment of thrombosis intravenous recombinant human tissue-type plasminogen activator (rt-PA) or placebo. Each five additional consecutive was treated a high dose rt-PA 2 hr. Twenty-five 33 (75%) receiving 0.5 0.75 mg/kg over 30 120 min had proven recanalization within 90 initiation therapy. Only one 14 given placebo...
Although many benefits are expected by reducing the operating temperature of solid oxide fuel cells (SOFCs) with alloy interconnectors, it should be concern that chromium oxyhydroxide vapor generated from an scale which is formed on surface most high oxidation-resistant alloys, degrades performance cathode under polarization. We have investigated a relationship between resistance against Cr poisoning and compositions electrode electrolyte to show possibility mitigating without pressure....
The electrochemical oxidation of and CO in a system at the interface porous Ni‐yttria stabilized zirconia (YSZ) cermet electrode YSZ electrolyte has been studied using complex‐impedance spectroscopy direct‐current polarization measurements 1023 1273 K under constant oxygen partial pressure. resistance increased when concentration ratio. , exceeded 0.2 0.5 K, respectively. rate was 1.9–2.3 times 2.3–3.1 higher than that respectively, water‐gas shift reaction found to be much faster both...
Chemical relaxation experiments were conducted on sintered samples of calcium‐doped lanthanum chromites by abruptly changing the oxygen partial pressure in atmosphere and following time change conductivity. The re‐equilibration kinetics was analyzed fitting data to solutions Fick's second law for appropriate boundary conditions. diffusion equation ignoring effect surface reaction failed describe transient behavior especially initial stage, while that taking into account gave a satisfactory...
Abstract Solid solution systems of (La1−xSrx)2CuO4−δ and (La1−xCax)2CuO4−δ with x=0.05, 0.075, 0.10 were found to exhibit the superconductivity through a.c. magnetic susceptibility electrical resistivity measurements. The onset critical temperature for (La0.90Sr0.10)2CuO4−δ was 37 K, highest among all superconducting materials ever known, while that (La0.95Ca0.05)2CuO4−δ 18 K.
Electrical conductivity of calcium‐doped lanthanum chromites, , was determined as a function composition, temperature, and oxygen partial pressure, to determine its defect structure understand redox behavior. The independent proportional the dopant concentration at high . activation energy 0.12 0.14 eV mobility 0.066 0.075 cm2/V/s in temperature range 900 1050°C, which ascribable small‐polaron hopping. Under reducing conditions, decreased exponentially with decreasing asymptotically...
The effects of morphine and fentanyl on tracheal smooth muscle tone were studied in 38 patients during induction anesthesia. Endotracheal tube cuff pressure was used to measure tone. Anesthesia maintained with nitrous oxide, 70 per cent oxygen, pancuronium ventilation controlled a respirator. Morphine, 0.5 mg/kg, produced biphasic response, initially causing dilatation then constriction. Ten minutes after injection, increased significantly (21 +/- 8 cent) above control. Morphine-induced...
We used a surface acoustic wave (SAW) cavity resonator to study the coupling of magnons in synthetic antiferromagnet (SAF) and phonons carried by SAWs. The SAF is composed CoFeB/Ru/CoFeB trilayer, scattering matrix SAW studied assess coupling. find that spectral line width modulated when frequency excited approaches resonance frequency. Such change linewidth can be well reproduced using macrospin-like model calculations. From analyses, we estimate magnon–phonon strength ∼9.9 MHz at 1.8 GHz:...
In order to make clear the ionic and electronic conductivities of perovskite‐type , single‐crystalline samples with were prepared by a floating zone technique. The conductivity oxygen nonstoichiometry measured dc four probe method high temperature gravimetry, respectively, both as function partial pressure, between 1 10−20 atm temperatures up 1100°C. It was found that nonstoichiometric change in content smaller than experimental errors . results analyzed simple defect model assuming...
The dimensional changes of doped lanthanum chromites (LaCrO3) upon reduction were investigated by thermal expansion measurements in oxidizing and reducing atmospheres. Judging from the crack formation these experiments, an empirical guideline for materials selection LaCrO3-based interconnectors solid oxide fuel cells has been identified that showing relative linear expansions less than 0.1% are to be used. It was also found lattice increased with decrease oxygen partial pressure (P (O2))...
Lowering the energy penalty associated with CO2 capture is one of key issues Carbon Capture and Storage (CCS) technologies. The efficiency carbon must be improved to reduce because stage most energy-consuming in entire process CCS. Energy-efficient distributed hydrogen production has been demonstrated an advanced membrane reformer system. We have already developed operated 40 Nm3/h-class system its high 81.4% (HHV), which world highest terms from natural gas. another significant feature that...