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Abe, Hiroshi*; Yamada, Takeshi*; Shibata, Kaoru
Journal of Molecular Liquids, 264, p.54 - 57, 2018/08
Times Cited Count：14 Percentile：60.51(Chemistry, Physical)Nakajima, Kenji; Kawakita, Yukinobu; Ito, Shinichi*; Abe, Jun*; Aizawa, Kazuya; Aoki, Hiroyuki; Endo, Hitoshi*; Fujita, Masaki*; Funakoshi, Kenichi*; Gong, W.*; et al.
Quantum Beam Science (Internet), 1(3), p.9_1 - 9_59, 2017/12
The neutron instruments suite, installed at the spallation neutron source of the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC), is reviewed. MLF has 23 neutron beam ports and 21 instruments are in operation for user programs or are under commissioning. A unique and challenging instrumental suite in MLF has been realized via combination of a high-performance neutron source, optimized for neutron scattering, and unique instruments using cutting-edge technologies. All instruments are/will serve in world-leading investigations in a broad range of fields, from fundamental physics to industrial applications. In this review, overviews, characteristic features, and typical applications of the individual instruments are mentioned.
Nogiwa, Kimihiro; Onitsuka, Takashi; Abe, Teruyoshi; Sakakibara, Yasuhide; Horie, Kaoru; Nakamura, Takahisa
Journal of Nuclear Science and Technology, 50(9), p.883 - 890, 2013/09
Times Cited Count：2 Percentile：18.63(Nuclear Science & Technology)The degree of influence of thermal aging on cast stainless steels over a protracted time at low temperatures was investigated by means of a toughness test and microstructural characterization performed on components dismantled from the advanced thermal proto-type reactor "Fugen". The thermal embrittlement mechanism was examined using data obtained dismantled from the materials that had aged on site. The results of a Charpy impact test and microstructural characterization performed using 3DAP analysis reveal early signs of a thermal aging effect over a protracted period at low temperatures corresponding boiling-water reactor (BWR).
Ishikawa, Satoru*; Ishimaru, Yasuhiro*; Igura, Masato*; Kuramata, Masato*; Abe, Tadashi*; Senoura, Takeshi*; Hase, Yoshihiro; Arao, Tomohito*; Nishizawa, Naoko*; Nakanishi, Hiromi*
Proceedings of the National Academy of Sciences of the United States of America, 109(47), p.19166 - 19171, 2012/11
Times Cited Count：351 Percentile：99.68(Multidisciplinary Sciences)Rice (
L.) is one of major sources of dietary intake of cadmium (Cd) for the human. However, the reliable technique to reduce substantially rice Cd contamination has not been offered so far. Here, we report the ion-beam irradiated rice mutants that do not nearly accumulate Cd in the grains and the mutant gene responsible for the Cd limitation. We found three mutants in which a favorable low-Cd trait is expressed by the different mutations on the same gene (
), and the transporter encoded by the mutant gene 
had a defective function of root Cd influx. The mutants adapted well in the Cd-polluted paddy fields by exhibiting nearly non-detectable Cd concentrations in their grains in accordance with no adverse economic traits. The DNA marker has been developed to breed new cultivars carrying . Our findings would be useful for greatly reducing the Cd level of paddy rice.
Sugiyama, Katsuteru*; Noguchi, Hiroki; Takegami, Hiroaki; Onuki, Kaoru; Kaneko, Akiko*; Abe, Yutaka*
Proceedings of 19th International Conference on Nuclear Engineering (ICONE-19) (CD-ROM), 7 Pages, 2011/10
The Japan Atomic Energy Agency has been conducting R&D on thermo-chemical IS process, which is one of most attractive water-splitting hydrogen production methods using nuclear heat of a high temperature gas-cooled reactor. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The application of DCHX to the sulfuric acid decomposition step of IS process has been proposed such that the decomposed gas contacts with the sulfuric acid solution supplied from the Bunsen reaction step. The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. However, little is known on the behavior of sulfuric acid in the DCHX, which is required for the equipment design. Therefore, we considered an experimental acquisition of essential design parameter of the DCHX, the gas-phase mass transfer coefficient.
Sugiyama, Katsuteru*; Noguchi, Hiroki; Takegami, Hiroaki; Onuki, Kaoru; Kaneko, Akiko*; Abe, Yutaka*
Nihon Kikai Gakkai Kanto Shibu Dai-17-Ki Sokai Koenkai Koen Rombunshu, p.495 - 496, 2011/03
IS process is a promising candidate of large scale hydrogen production methods. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The application of DCHX to the sulfuric acid decomposition step of IS process has been proposed such that the decomposed gas contacts with the sulfuric acid solution supplied from the Bunsen reaction step. The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. However, little is known on the behavior of sulfuric acid in the DCHX, which is required for the equipment design. Therefore, we considered an experimental acquisition of essential design parameter of the DCHX, the gas-phase mass transfer coefficient.
Kasahara, Seiji; Imai, Yoshiyuki; Abe, Hiroyoshi*; Kubo, Shinji; Onuki, Kaoru
no journal, ,
Application of Raman spectroscopy, which can be used in non-contact and on-line measurement, to thermochemical water-splitting IS process was investigated. Concentration range where Raman spectroscopy can be applicable was evaluated by measurement of concentration of sulfuric acid. Applicability of determination of concentration of sulfuric acid of 10-70 wt% was verified.
Kasahara, Seiji; Imai, Yoshiyuki; Abe, Hiroyoshi*; Kubo, Shinji; Onuki, Kaoru
no journal, ,
Applicability of Raman spectroscopy for measurement in thermochemical water-splitting IS process was investigated. H
SO
solution obtained in the Bunsen reaction before and after purification was selected as targets. For pure HSO-HO solution, model as the solution after purification, possibility of a method of concentration measurement utilizing areas of Raman peaks was shown in the range between 5-70 wt%. For HSO-HO solution containing small amount of HI and I, model solution before purification, preliminary investigation of concentration range of impurities for HSO concentration measurement was carried out.
Sugiyama, Katsuteru*; Noguchi, Hiroki; Takegami, Hiroaki; Onuki, Kaoru; Kaneko, Akiko*; Abe, Yutaka*
no journal, ,
The Japan Atomic Energy Agency has been conducting R&D on thermo-chemical IS process, which is one of most attractive water-splitting hydrogen production methods using nuclear heat of a high temperature gas-cooled reactor. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The application of DCHX to the sulfuric acid decomposition step of IS process has been proposed such that the decomposed gas contacts with the sulfuric acid solution supplied from the Bunsen reaction step. The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. However, little is known on the behavior of sulfuric acid in the DCHX, which is required for the equipment design. Therefore, we considered an experimental acquisition of essential design parameter of the DCHX, the gas-phase mass transfer coefficient.
Sugiyama, Katsuteru*; Noguchi, Hiroki; Takegami, Hiroaki; Onuki, Kaoru; Kaneko, Akiko*; Abe, Yutaka*
no journal, ,
The Japan Atomic Energy Agency has been conducting R&D on thermo-chemical IS process, which is one of most attractive water-splitting hydrogen production methods using nuclear heat of a high temperature gas-cooled reactor. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. Experimental methods were discussed to acquire the gas-phase mass transfer coefficient required for the optimal design of DCHX. Experimental setup composed of wetted-wall column was manufactured to measure the mass transfer coefficients. In this paper, we report preliminary experimental results of water.
Nogiwa, Kimihiro; Onitsuka, Takashi; Abe, Teruyoshi; Sakakibara, Yasuhide; Nakamura, Takahisa; Horie, Kaoru
no journal, ,
no abstracts in English
Onitsuka, Takashi; Nogiwa, Kimihiro; Abe, Teruyoshi; Sakakibara, Yasuhide; Nakamura, Takahisa; Horie, Kaoru
no journal, ,
no abstracts in English
Onitsuka, Takashi; Nogiwa, Kimihiro; Abe, Teruyoshi; Sakakibara, Yasuhide; Nakamura, Takahisa; Horie, Kaoru
no journal, ,
no abstracts in English
Sugiyama, Katsuteru*; Noguchi, Hiroki; Takegami, Hiroaki; Onuki, Kaoru; Kaneko, Akiko*; Abe, Yutaka*
no journal, ,
The Japan Atomic Energy Agency has been conducting research and development on thermo-chemical IS process, which is one of most attractive water-splitting hydrogen production methods using nuclear heat of a high temperature gas-cooled reactor. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. Experimental methods were discussed to acquire the gas-phase mass transfer coefficient required for the optimal design of DCHX. Experimental setup composed of wetted-wall column was manufactured to measure the mass transfer coefficients. In this paper, we report experimental results of mass transfer coefficient of water using this apparatus.
Nogiwa, Kimihiro; Onitsuka, Takashi; Takeuchi, Tomoaki; Abe, Teruyoshi; Sakakibara, Yasuhide; Horie, Kaoru; Nakamura, Takahisa
no journal, ,
no abstracts in English
Hattori, Takanori; Sano, Asami; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*; Nakamura, Mitsutaka; Iida, Kazuki*; Kawamura, Seiko; Shibata, Kaoru; Yamada, Takeshi*; et al.
no journal, ,
So far, high-pressure experiments using neutrons were limited due to the incompatible nature of limited neutron flux with tiny high-pressure sample. Intense neutron source of J-PARC is about to change the situation. In this talk, I will introduce the high-pressure diffraction beamline PLANET and recent results. And also, I will show you resent challenges to expand high-pressure activity to other experimental techniques, such as small angles scattering, quasi elastic scattering, and inelastic scattering.
Hattori, Takanori; Sano, Asami; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*; Nakamura, Mitsutaka; Iida, Kazuki*; Shibata, Kaoru; Yamada, Takeshi*; Oishi, Kazuki*; et al.
no journal, ,
So far, high-pressure experiments using neutrons were limited due to the incompatible nature of limited neutron flux with tiny high-pressure sample. Intense neutron source of J-PARC is about to change the situation. In this talk, I will introduce the high-pressure diffraction beamline PLANET and recent results. And also, I will show you resent challenges to expand high-pressure activity to other experimental techniques, such as small angles scattering, quasi elastic scattering, and inelastic scattering.
