Search Results - "Okuda, Kohei"

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  1. 1

    Effects of disaster risk reduction on socio-economic development and poverty reduction by Okuda, Kohei, Kawasaki, Akiyuki

    “…Investments in disaster risk reduction not only reduce damage, but also promote social and economic development. While there are many methods of evaluating…”
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    Journal Article
  2. 2

    Estimating the level of income in individual buildings using data from household interview surveys and satellite imagery: Case study in Myanmar and Nicaragua by Okuda, Kohei, Kawasaki, Akiyuki, Yamashita, Naoki

    Published in Geo-spatial information science (02-09-2024)
    “…Leaving no one behind is a worldwide goal, but it is difficult to make policy to address this issue because we do not have a thorough knowledge of where…”
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    Journal Article
  3. 3
  4. 4

    Co-precipitation of tapioca starch and hydroxyapatite. Effects of phosphorylation of starch on mechanical properties of the composites by Okuda, Kohei, Hirota, Ken, Mizutani, Tadashi, Aoyama, Yasuhiro

    Published in Results in materials (01-10-2019)
    “…Organic-inorganic composites were prepared by co-precipitation of tapioca starch and hydroxyapatite (HAP) with polymer-hydroxyapatite weight ratios of 70/30,…”
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    Journal Article
  5. 5

    Simulation-based systematic error compensation for nanoprofiler using normal vector tracing method by Kudo, Ryota, Okita, Kenya, Okuda, Kohei, Tokuta, Yusuke, Nakano, Motohiro, Yamamura, Kazuya, Endo, Katsuyoshi

    “…•The influence of the assembly error of nanoprofiler is low-order components.•The influence of the assembly error of nanoprofiler is linear to the amount of…”
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    Journal Article
  6. 6

    Characteristics of the 2018 Bago River Flood of Myanmar by Komori, Daisuke, Kawasaki, Akiyuki, Sakai, Nanami, Shimomura, Natsumi, Harada, Akira, Okuda, Kohei, Win, Chit Bo Bo, Thu, Aye Myat, Tun, Khin Yadanar, Toe, Wai, Zin, Win Win

    Published in Journal of disaster research (30-03-2020)
    “…A massive flood in Myanmar struck the Bago river in July, 2018. In this study, because of the limitation of real-time data availability, the satellite-based…”
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    Journal Article
  7. 7

    Impact of the coronary flow reduction at rest on myocardial perfusion and functional indices derived from myocardial contrast and strain echocardiography by Okuda, Kohei, Asanuma, Toshihiko, Hirano, Takashiro, Masuda, Kasumi, Otani, Kentaro, Ishikura, Fuminobu, Beppu, Shintaro

    “…The severity of the coronary flow reduction that corresponds to myocardial perfusion and functional abnormalities remains unclear. We estimated the impact of…”
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    Journal Article
  8. 8

    Water-Resistant Tough Composites of Cellulose Nanofibers and Hydroxyapatite by Okuda, Yui, Kido, Eiichi, Hirota, Ken, Mizutani, Tadashi

    Published in ACS applied polymer materials (13-10-2023)
    “…To develop carbon-neutral tough mechanical materials, we prepared the composite of TEMPO-oxidized cellulose nanofibers (TCNF) and hydroxyapatite (HAP) by…”
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    Journal Article
  9. 9

    Nonbrittle Nanocomposite Materials Prepared by Coprecipitation of TEMPO-Oxidized Cellulose Nanofibers and Hydroxyapatite by Okuda, Yui, Mizutani, Tadashi, Hirota, Ken, Hayashi, Takayuki, Zinno, Kazuhito

    Published in ACS sustainable chemistry & engineering (11-01-2021)
    “…Organic–inorganic nanocomposites were prepared by crystallization of hydroxyapatite in an aqueous dispersion of cellulose nanofibers. The addition of aqueous…”
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    Journal Article
  10. 10

    Effects of Hydration on Mechanical Properties of Acylated Hydroxyapatite–Starch Composites by Okuda, Yui, Aoyama, Yasuhiro, Hirota, Ken, Mizutani, Tadashi

    Published in ACS applied polymer materials (11-03-2022)
    “…Transesterification of vinyl acetate, vinyl benzoate, and vinyl laurate with hydroxyapatite–starch composites was carried out in dimethyl sulfoxide at 25–120…”
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    Journal Article
  11. 11

    Enhanced toughness of hydroxyapatite-poly(ethylene terephthalate) composites by immersion in water by Okuda, Kohei, Hirota, Ken, Mizutani, Tadashi, Numamoto, Yusuke

    Published in Materials advances (31-08-2021)
    “…Water-soluble poly(ethylene terephthalate) bearing carboxylate groups on 14-22% of its phenylene moieties were coprecipitated with calcium ion and phosphate…”
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    Journal Article
  12. 12

    In Situ Crystallization of Hydroxyapatite on Carboxymethyl Cellulose as a Biomimetic Approach to Biomass-Derived Composite Materials by Okuda, Yui, Shigemasa, Ryosuke, Hirota, Ken, Mizutani, Tadashi

    Published in ACS omega (12-04-2022)
    “…Nanohydroxyapatite (HAP) was crystallized in an aqueous solution of carboxymethyl cellulose (CMC) to prepare the composites of CMC and HAP with a stable…”
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    Journal Article
  13. 13

    Efficacy of intravenous myocardial contrast echocardiography for assessment of perfusion area of the heart in mice by Hirayama, Hideo, Ishikura, Fuminobu, Okuda, Kohei, Hirano, Takashiro, Kobayashi, Haruka, Beppu, Shintaro

    Published in Journal of cardiology (01-11-2003)
    “…Intravenous myocardial contrast echocardiography is used clinically, but use in small animals has not been evaluated. The conditions for myocardial…”
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    Journal Article
  14. 14

    Hysteretic Relationship Between Magnetic Flux and Primary Overcurrent in FTI-FCL With YBCO Thin Film Disc by Okuda, K., Higuchi, K., Yokomizu, Y., Matsumura, T.

    “…We focused on a flat-type inductive fault current limiter (FTI-FCL) with an yttrium barium copper oxide (YBCO) superconducting thin film made with the…”
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    Journal Article Conference Proceeding
  15. 15

    Noninvasive quantification of regional ventricular function in rats: assessment of serial change and spatial distribution using ultrasound strain analysis by Hirano, Takashiro, Asanuma, Toshihiko, Azakami, Ryoko, Okuda, Kohei, Ishikura, Fuminobu, Beppu, Shintaro

    “…The optimal method for quantitative assessment of regional ventricular function in rats remains unclear. The goal of this study was to investigate the use of…”
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    Journal Article
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  17. 17

    Evaluation of feedback conditions in the noncontact operation by Amahaya, Kenta, Sugihara, Keiya, Okuda, Kohei, Watanabe, Keita, Nakamichi, Noboru

    “…We evaluated usability by feedback of human senses ("Sight", "Hearing", and "Haptics") in non-contact operation system using non-contact display. We performed…”
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    Conference Proceeding
  18. 18

    Periodic behavior of magnetic flux density in flat-type inductive fault current limiter with YBCO thin film discs during AC over-current carrying period by Harada, Masayuki, Okuda, Kohei, Yokomizu, Yasunobu, Matsumura, Toshiro

    “…We focus on a flat-type inductive fault current limiter (FCL), which consists of a pancake coil and superconducting thin film discs. This paper describes an…”
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    Conference Proceeding