Search Results - "Ohira, A."

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    Free volume and permeabilities of O2 and H2 in Nafion membranes for polymer electrolyte fuel cells by Mohamed, Hamdy F.M., Ito, K., Kobayashi, Y., Takimoto, N., Takeoka, Y., Ohira, A.

    Published in Polymer (Guilford) (23-06-2008)
    “…The mechanism of gas permeation in Nafion membranes for polymer electrolyte fuel cells has been investigated from the viewpoint of free volume. Three different…”
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    Positronium Formation in Aromatic Polymer Electrolytes for Fuel Cells by Kobayashi, Y, Mohamed, Hamdy F. M, Ohira, A

    Published in The journal of physical chemistry. B (30-04-2009)
    “…We measured the yield of positronium (Ps) in sulfonated aromatic proton conducting membranes for the polymer electrolyte fuel cell (PEFC) with and without…”
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    Determination of a Micron-Scale Restricted Structure in a Perfluorinated Membrane from Time-Dependent Self-Diffusion Measurements by Ohkubo, T, Kidena, K, Ohira, A

    Published in Macromolecules (25-11-2008)
    “…We investigated the 1H time-dependent self-diffusion coefficients, D eff, in perfluorinated membrane with low and high water contents (6% and 24%) at the…”
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    Effects of Ion Exchange on the Free Volume and Oxygen Permeation in Nafion for Fuel Cells by Mohamed, Hamdy F. M, Kobayashi, Y, Kuroda, C. S, Ohira, A

    Published in The journal of physical chemistry. B (26-02-2009)
    “…Variations of the free volume, O2 permeability, and structure of the Nafion membrane upon ion exchange of H+ with Na+ and K+ were studied. The free volume was…”
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    Free volume, oxygen permeability, and uniaxial compression storage modulus of hydrated biphenol-based sulfonated poly(arylene ether sulfone) by Mohamed, Hamdy F.M., Kobayashi, Y., Kuroda, C.S., Takimoto, N., Ohira, A.

    Published in Journal of membrane science (01-09-2010)
    “…Free volume, O 2 permeability, and uniaxial compression storage modulus of biphenol-based sulfonated poly(arylene ether sulfone) (BPSH) with an ion exchange…”
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    Versatile Helical Polymer Films: Chiroptical Inversion Switching and Memory with Re-Writable (RW) and Write-Once Read-Many (WORM) Modes by Ohira, A., Okoshi, K., Fujiki, M., Kunitake, M., Naito, M., Hagihara, T.

    Published in Advanced materials (Weinheim) (16-09-2004)
    “…Solid‐state films of chiral polysilanes undergo an optical inversion (see Figure) above a helix–helix transition temperature, determined by the polymer…”
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    Identification of silicone oil in ocular tissues by Ohira, A

    Published in British journal of ophthalmology (01-02-2005)
    “…[...]when silicone droplets containing the dye were injected into the chamber, the blue dye formed clusters in small cellular vacuoles (light microscopy) and…”
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    Five cases of thelaziasis by KOYAMA, YASUROU, OHIRA, AKIHIRO, KONO, TATSURO, YONEYAMA, TOSHIMI, SHIWAKU, KUNINORI

    Published in British journal of ophthalmology (01-04-2000)
    “…The worms were removed (two to five worms per patient) with forceps using topical anaesthesia and antibiotic eye drops (Fig 1 ). Patient No 1 2 3 4 5 Sex Male…”
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    Long-term effect on optic nerve of silicone oil tamponade in rabbits: histological and EDXA findings by SAITOH, A, TANIGUCHI, H, GONG, H, OHIRA, A, AMEMIYA, T, BABA, T

    Published in Eye (London) (01-03-2002)
    “…Side-effects after intravitreal use of silicone oil (SO) are not well defined and elucidated. The object of this study was to examine the influence and…”
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    Oxidative stress induces adult T cell leukemia derived factor/thioredoxin in the rat retina by Ohira, A, Honda, O, Gauntt, C D, Yamamoto, M, Hori, K, Masutani, H, Yodoi, J, Honda, Y

    Published in Laboratory investigation (01-02-1994)
    “…Adult T cell leukemia derived factor (ADF), originally defined as an interleukin-2 receptor inducer, is a human thioredoxin homolog. ADF/thioredoxin has…”
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    Wear test of cemented tungsten carbide at high atmospheric temperature (400°C) by Marui, E, Endo, H, Ohira, A

    Published in Tribology letters (01-03-2000)
    “…Cemented tungsten carbide–cobalt (WC–Co) alloy has good mechanical properties, so it is widely used for cutting tools, wear-resistant dies and rolls, and…”
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    Positron trapping and possible presence of SO3H clusters in dry fluorinated polymer electrolyte membranes by Mohamed, Hamdy F.M., Kobayashi, Y., Kuroda, S., Ohira, A.

    Published in Chemical physics letters (20-08-2012)
    “…[Display omitted] ► Positron techniques point to possible presence of SO3H clusters in fluorinated PEM. ► More positrons are trapped by oxygen atoms with…”
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    Mitochondrial induction of adult T cell leukemia derived factor (ADF/hTx) after oxidative stresses in retinal pigment epithelial cells by Gauntt, CD, Ohira, A, Honda, O, Kigasawa, K, Fujimoto, T, Masutani, H, Yodoi, J, Honda, Y

    “…Adult T cell leukemia derived factor (ADF) is a human homologue of thioredoxin (hTx), which exhibits scavenging activity with reactive oxygen intermediates. In…”
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