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Article
Simulation of Initial Growth Process of Pt Cluster on Carbon Materials - First-Principles Calculations
First-principles calculations have been applied to investigate the interactions between Ptn (n=1˜13) clusters and a graphene sheet to model the Pt/C fuel-cell catalytic electrode. For the small clustesr (n<7),...
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Article
Electron Holographic Nano-Characterization of Gold Catalyst at Interface
The catalytic properties of nanostructured gold catalyst are known to depend on the size of the gold particles and to be activated when the size decreases to a few nanometers. We investigated the size dependen...
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Article
Nanoscale characterization of Pd/TiO2 catalysts and Ag/TiO2 catalysts by electron holography
Catalytic properties of noble metal catalysts are often caused by their nanostructures and the interaction between nano particles and oxides supports. We examine the mean inner potential of Pd particles in Pd/TiO
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Article
TEM observation of gold nanoparticles deposited on cerium oxide
The structure of Au nanoparticles supported on CeO2 using the deposition precipitation method was observed using a transmission electron microscope (TEM). The shape of Au nanoparticles and the fine structure of c...
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Article
Electron Holographic Characterization of Nano-Hetero Interface Effect in Gold Catalysts
We investigated the atomic structure near the interface and the size dependence of the mean inner potential of gold in Au/TiO2 catalysts prepared by the deposition precipitation (DP) method and the vacuum evapora...
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Article
Mean Inner Potential of Nanostructured Noble Metal Catalysts - Pt/TiO2 Catalyst -
Catalytic properties of noble metal catalysts are often caused by their nanostructures. Gold catalysts are typical cases. It is especially interesting that the catalytic property of gold suddenly changes to re...
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Article
Analytical TEM Observations of Combinatorial Catalyst Libraries for Hydrogen Production–As a Part of “MATERIOMICS”-
Materiomics is a new approach combining combinatorial surveys and precise structure analyses in order to develop new functional materials efficiently. In this paper, we show the first stage of materiomics applied...
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Article
Vapor-Phase Epoxidation of Propene over Au/Ti-MCM-41 Catalysts: Influence of Ti Content and Au Content
Ti-MCM-41 samples were used for propene epoxidation using H2 and O2 after Au deposition by deposition--precipitation. Au nanoparticles supported on Ti-MCM-41 with Ti incorporated hydrothermally followed by post-s...
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Article
Atomic and Electronic Structures of Nano-Interface In Au/TiO2 Catalyst - Electron Microscopic Approach -
The size dependence of the catalytic property of the gold catalysts has been reported. It is especially interesting that the catalytic property of gold suddenly changes to show a platinum-like behavior when th...
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Article
Long-term follow-up of patients with mechanical prosthetic valves in the tricuspid position
It remains controversial whether biological or mechanical prostheses in the tricuspid position give better long-term results. The clinical advantage of mechanical prostheses is evaluated in this article. Our ...
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Chapter and Conference Paper
Adrenaline-Induced Long-Lasting Potentiation of Transmitter Release at Frog Motor Nerve Terminals
Adrenaline produced use-dependent, long-term enhancement of the amplitude of end-plate potential (Epp) with a decrease in the coefficient of variation of the amplitude and marked augmentation of tetanic and po...
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Chapter and Conference Paper
Ca2+-Induced Ca2+ Release in Presynaptic Terminals and Exocytosis
Continuous tetanic stimulation of the nerve caused slow rises in intracellular Ca2+ in motor nerve terminals and the frequency of miniature end-plate potential (MEPP) over a few minutes in frog skeletal muscles. ...
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Chapter and Conference Paper
Enhancement of Neurotransmitter Release by Activation of Ryanodine Receptors after Ca2+-Dependent Priming at Motor Nerve Terminals
Ryanodine receptors at frog motor nerve terminals need priming by repetitive Ca2+entry before activation by further Ca2+entry. Ryanodine receptors were primed by Ca2+entry at a rate of >2 Hz at the external Ca2+c...
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Chapter and Conference Paper
Muscarinic Inhibition of M-current in Bullfrog Sympathetic Neurones is Independent of Intracellular Ca2+ Release
Possible roles of cyclic ADP ribose (cADPR) and intracellular Ca2+ release in the action of muscarine to inhibit a voltage-dependent, noninactivating K+ current, IM, were studied in bullfrog sympathetic ganglion ...
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Article
Analytical High Resolution TEM Study of Au/TiO2 Catalysts
HRTEM(High-Resolution Transmission Electron Microscope), HAADF-STEM (High Angle Annular Dark Field Scanning Transmission Electron Microscope) and EELS(Electron Energy Loss Spectroscopy) techniques were applied...
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Chapter
Strength, Ductility/Toughness and Fine-Blanking of Nonmagnetic High Mn Steel and Its Accelerator Superconducting Magnets Application
The authors have developed anew a nonmagnetic steel (KHMN) containing high Mn content up to 30% for the cryogenic uses, being engaged in its application to accelerator superconducting magnets as structural mat...
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Article
Ion-Beam Synthesized Semiconducting pd-FeSi2 Controlled By Annealing Procedures And Phase-Transitions
The ion beam synthesis (IBS) of β-FeSi2 was examined by Rutherford backscattering spectroscopy (RBS) and x-ray diffractometry (XRD), and the structural characterization was carried out by Raman spectroscopy and s...
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Article
Super-active enkephalin analogues
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Article
Biochemical studies of pigments from a pathogenic fungusMicrosporum cookei. V. Evidence for the transmembrane permeability of xanthomegnin across phospholipid bilayer membranes
Direct evidence is provided for the transmembrane permeation of xanthomegnin across phospholipid bilayer mebranes using ascorbate-loaded liposomes. This process may be associated with an uncoupling effect on t...
