Search Results - "Hiroyuki Sakaue, Hiroyuki Sakaue"

Refine Results
  1. 1

    Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers by Tanaka, Masaomi, Kato, Daiji, Gaigalas, Gediminas, Rynkun, Pavel, Rad i t, Laima, Wanajo, Shinya, Sekiguchi, Yuichiro, Nakamura, Nobuyuki, Tanuma, Hajime, Murakami, Izumi, Sakaue, Hiroyuki A.

    Published in The Astrophysical journal (10-01-2018)
    “…Ejected material from neutron star mergers gives rise to electromagnetic emission powered by radioactive decays of r-process nuclei, the so-called kilonova or…”
    Get full text
    Journal Article
  2. 2

    A Wide Vacuum Ultraviolet Range Spectrometer for Use with an Electron Beam Ion Trap by Nakamura, Nobuyuki, Numadate, Naoki, Sakaue, Hiroyuki A.

    Published in Journal of the Physical Society of Japan (15-11-2021)
    “…We present a new spectrometer for spectroscopic studies of highly charged ions with an electron beam ion trap (EBIT) in the vacuum ultraviolet range. The…”
    Get full text
    Journal Article
  3. 3

    Electron Density Dependence of Extreme Ultraviolet Line Intensity Ratios in Ar XIV by Nakamura, Nobuyuki, Numadate, Naoki, Kono, Yasutaka, Murakami, Izumi, Kato, Daiji, Sakaue, Hiroyuki A., Hara, Hirohisa

    Published in The Astrophysical journal (01-11-2021)
    “…We report the electron density dependence of extreme ultraviolet line intensity ratios in Ar xiv studied using a well-defined electron beam ion trap plasma…”
    Get full text
    Journal Article
  4. 4

    Energy Dependence of the Line Ratio I(233.9 Å)/I(243.8 Å) in Fe xv Observed with an Electron Beam Ion Trap by Sakaue, Hiroyuki A., Kato, Daiji, Yamamoto, Norimasa, Murakami, Izumi, Hara, Hirohisa, Nakamura, Nobuyuki

    Published in The Astrophysical journal (01-01-2023)
    “…We present the energy dependence of the intensity ratio between the 3 s 3 p 3 P 2 —3 s 3 d 3 D 3 transition at 233.9 Å and the 3 s 3 p 1 P 1 —3 s 3 d 1 D 2…”
    Get full text
    Journal Article
  5. 5

    Propulsive forces on water polo players' feet from eggbeater kicking estimated by pressure distribution analysis by Kawai, Eisuke, Tsunokawa, Takaaki, Sakaue, Hiroyuki, Takagi, Hideki

    Published in Sports biomechanics (03-10-2023)
    “…The purpose of this study was to characterise the unsteady propulsive force during eggbeater kicking by a fluid force estimation method based on pressure…”
    Get full text
    Journal Article
  6. 6

    Laser Induced Breakdown Spectroscopy of Er II for Transition Probability Measurements by Naoi, Yuki, Iwata, Masayuki, Yokota, Daichi, Gaigalas, Gediminas, Kato, Daiji, Murakami, Izumi, Sakaue, Hiroyuki, Sekiguchi, Yuichiro, Tanaka, Masaomi, Tanuma, Hajime, Wanajo, Shinya, Nakamura, Nobuyuki

    Published in Applied sciences (21-02-2022)
    “…We present a laser induced breakdown spectrum of Er II in the near ultraviolet region. To use the spectrum for the evaluation of the transition probabilities,…”
    Get full text
    Journal Article
  7. 7

    Identification of Visible Lines in Pm-like W13 by Priti, Inadome, Kota, Funabashi, Mayuko, Nakamura, Nobuyuki, Sakaue, Hiroyuki A., Murakami, Izumi, Kato, Daiji

    Published in Atoms (13-03-2023)
    “…To provide spectroscopic data for W13+, the present work is focused on the analysis of spectra observed in the visible range, using a compact electron beam ion…”
    Get full text
    Journal Article
  8. 8

    Observation of line emissions from Ni-like W46 + ions in wavelength range of 7-8 Å in the Large Helical Device by Oishi, Tetsutarou, Morita, Shigeru, Kato, Daiji, Murakami, Izumi, Sakaue, Hiroyuki A, Kawamoto, Yasuko, Goto, Motoshi

    Published in Physica scripta (14-02-2020)
    “…Tungsten W46+ lines were successfully observed in the extreme ultraviolet (EUV) wavelength range of 7 ∼ 8 Å in the Large Helical Device (LHD). Tungsten ions…”
    Get full text
    Journal Article
  9. 9

    Theoretical investigation on the soft X-ray spectrum of the highly-charged W54+ ions by Ding, Xiaobin, Yang, Jiaoxia, Koike, Fumihiro, Murakami, Izumi, Kato, Daiji, Sakaue, Hiroyuki A, Nakamura, Nobuyuki, Dong, Chenzhong

    “…•A detailed level collisional-radiative model (CRM) had been constructed to investigate the observed spectrum from the EBIT with a mono-energy electron…”
    Get full text
    Journal Article
  10. 10

    Exclusion of PCBM molecules from C60 domain on Au (111) by Jikuya, Takaaki, Sakaue, Hiroyuki, Suzuki, Hitoshi

    Published in Japanese Journal of Applied Physics (22-01-2020)
    “…To investigate the influence of asymmetric intermolecular interactions of phenyl-C61-butyric acid methyl ester (PCBM), the behaviors of C60 and PCBM molecules…”
    Get full text
    Journal Article
  11. 11

    Direct Observation of the M1 Transition between the Ground Term Fine Structure Levels of W VIII by Mita, Momoe, Sakaue, Hiroyuki, Kato, Daiji, Murakami, Izumi, Nakamura, Nobuyuki

    Published in Atoms (08-03-2017)
    “…We present a direct observation of the M1 transition between the fine structure splitting in the 4f135s25p64f135s25p6 2F2F ground term of W VIII. The…”
    Get full text
    Journal Article
  12. 12

    Population trapping: The mechanism for the lost resonance lines in Pm-like ions by Kato, Daiji, Sakaue, Hiroyuki A., Murakami, Izumi, Nakamura, Nobuyuki

    “…We report a population kinetics study on line emissions of the Pm-like Bi22+ performed by using a collisional-radiative (CR) model. Population rates of excited…”
    Get full text
    Journal Article
  13. 13

    2D mapping of hydrogen permeation from a stainless steel membrane by Miyauchi, Naoya, Hirata, Kenichirou, Murase, Yoshiharu, Sakaue, Hiroyuki A., Yakabe, Taro, Itakura, Akiko N., Gotoh, Tetsuji, Takagi, Shoji

    Published in Scripta materialia (01-02-2018)
    “…Hydrogen permeation from a metal surface was visualized by two-dimensional mapping of hydrogen ion desorbed by scanning electron beam irradiation. The sample…”
    Get full text
    Journal Article
  14. 14

    Resonant Electron Impact Excitation of 3d Levels in Fe14+ and Fe15 by Tsuda, Takashi, Shimizu, Erina, Ali, Safdar, Sakaue, Hiroyuki A., Kato, Daiji, Murakami, Izumi, Hara, Hirohisa, Watanabe, Tetsuya, Nakamura, Nobuyuki

    Published in The Astrophysical journal (20-12-2017)
    “…We present laboratory spectra of the 3p-3d transitions in Fe14+ and Fe15+ excited with a mono-energetic electron beam. In the energy-dependent spectra obtained…”
    Get full text
    Journal Article
  15. 15

    Development of a high‐temperature superconducting magnet for use in a cryogen‐free electron beam ion trap by Tamai, Toshihiro, Sakaue, Hiroyuki A., Terazaki, Yoshiro, Yanagi, Nagato, Nakamura, Nobuyuki

    Published in X-ray spectrometry (01-03-2020)
    “…We present a design and test results of a high‐temperature superconducting magnet, which is under development for use in a new cryogen‐free electron beam ion…”
    Get full text
    Journal Article
  16. 16

    Correlation, Breit and Quantum Electrodynamics effects on energy level and transition properties of W54+ ion by Ding, Xiaobin, Sun, Rui, Koike, Fumihiro, Kato, Daiji, Murakami, Izumi, Sakaue, Hiroyuki A, Dong, Chenzhong

    “…The electron correlation effects and Breit interaction as well as Quantum Electro-Dynamics (QED) effects were expected to have important contribution to the…”
    Get full text
    Journal Article
  17. 17

    Identification of Visible Lines in Pm-like W[sup.13+] by Priti, Inadome, Kota, Funabashi, Mayuko, Nakamura, Nobuyuki, Sakaue, Hiroyuki A, Murakami, Izumi, Kato, Daiji

    Published in Atoms (01-03-2023)
    “…To provide spectroscopic data for W[sup.13+] , the present work is focused on the analysis of spectra observed in the visible range, using a compact electron…”
    Get full text
    Journal Article
  18. 18
  19. 19

    Resonant electron impact excitation of highly charged Fe ions studied with a compact electron beam ion trap by Monobe, Masashi, Sakaue, Hiroyuki A., Kato, Daiji, Murakami, Izumi, Hara, Hirohisa, Watanabe, Tetsuya, Nakamura, Nobuyuki

    Published in X-ray spectrometry (01-07-2020)
    “…We present extreme ultraviolet spectra of 3s3p–3s3d transitions in Fe14+ observed with a compact electron beam ion trap. The contributions of indirect…”
    Get full text
    Journal Article
  20. 20

    Extreme ultra-violet emission spectroscopy of highly charged gadolinium ions with an electron beam ion trap by Ohashi, Hayato, Sakaue, Hiroyuki A, Nakamura, Nobuyuki

    Published in Physica scripta (01-09-2013)
    “…We present extreme ultra-violet emission spectra of highly charged gadolinium ions obtained with an electron beam ion trap at electron energies of 0.53-1.51…”
    Get full text
    Journal Article