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Journal Articles

Molecular geochemistry of radium; A key to understanding cation adsorption reaction on clay minerals

Yamaguchi, Akiko; Kurihara, Yuichi*; Nagata, Kojiro*; Tanaka, Kazuya; Higaki, Shogo*; Kobayashi, Toru; Tanida, Hajime; Ohara, Yoshiyuki*; Yokoyama, Keiichi; Yaita, Tsuyoshi; et al.

Journal of Colloid and Interface Science, 661, p.317 - 332, 2024/05

 Times Cited Count:0 Percentile:0.01(Chemistry, Physical)

no abstracts in English

Journal Articles

Extended X-ray absorption fine structure spectroscopy measurements and ${it ab initio}$ molecular dynamics simulations reveal the hydration structure of the radium(II) ion

Yamaguchi, Akiko; Nagata, Kojiro*; Kobayashi, Keita; Tanaka, Kazuya; Kobayashi, Toru; Tanida, Hajime; Shimojo, Kojiro; Sekiguchi, Tetsuhiro; Kaneta, Yui; Matsuda, Shohei; et al.

iScience (Internet), 25(8), p.104763_1 - 104763_12, 2022/08

 Times Cited Count:9 Percentile:69.8(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Marking actinides for separation; Resonance-enhanced multiphoton charge transfer in actinide complexes

Matsuda, Shohei; Yokoyama, Keiichi; Yaita, Tsuyoshi; Kobayashi, Toru; Kaneta, Yui; Simonnet, M.; Sekiguchi, Tetsuhiro; Honda, Mitsunori; Shimojo, Kojiro; Doi, Reisuke; et al.

Science Advances (Internet), 8(20), p.eabn1991_1 - eabn1991_11, 2022/05

 Times Cited Count:6 Percentile:55.31(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Investigation of hydration and adsorption structures on clay minerals of radium by EXAFS

Yamaguchi, Akiko; Nagata, Kojiro*; Tanaka, Kazuya; Kobayashi, Keita; Kobayashi, Toru; Shimojo, Kojiro; Tanida, Hajime; Sekiguchi, Tetsuhiro; Kaneta, Yui; Matsuda, Shohei; et al.

Hosha Kagaku, (45), p.28 - 30, 2022/03

no abstracts in English

Journal Articles

Study on phenanthroline carboxamide for lanthanide separation; Influence of amide substituents

Simonnet, M.; Kobayashi, Toru; Shimojo, Kojiro; Yokoyama, Keiichi; Yaita, Tsuyoshi

Inorganic Chemistry, 60(17), p.13409 - 13418, 2021/09

 Times Cited Count:17 Percentile:88.1(Chemistry, Inorganic & Nuclear)

Journal Articles

Development of laser cutting technology for reactor decommissioning process

Kobayashi, Kojiro*; Ida, Toshio*; Yamaguchi, Takeshi*; Daido, Hiroyuki; Muramatsu, Toshiharu; Sano, Kazuya; Tsuboi, Akihiko*; Shamoto, Hideyasu*; Ikeda, Takeshi*

Reza Kako Gakkai-Shi, 19(1), p.63 - 67, 2012/03

Laser cutting method, is that the metal melted by laser power is removed by assist gas, has some advantages which are high speed cutting and narrow line-width cutting for the thin metal. We has conducted the joint research with the relevant organizations on the R&D of the laser cutting technology for cutting stainless and carbon steel of over the 150 mm thickness which is maximum thickness of core structure in Fugen. We report the R&D plan and the current status of the laser cutting test.

Journal Articles

Conduction-band electronic states of YbInCu$$_4$$ studied by photoemission and soft X-ray absorption spectroscopies

Utsumi, Yuki*; Sato, Hitoshi*; Kurihara, Hidenao*; Maso, Hiroyuki*; Hiraoka, Koichi*; Kojima, Kenichi*; Tobimatsu, Komei*; Okochi, Takuo*; Fujimori, Shinichi; Takeda, Yukiharu; et al.

Physical Review B, 84(11), p.115143_1 - 115143_7, 2011/09

 Times Cited Count:11 Percentile:44.51(Materials Science, Multidisciplinary)

We have studied conduction-band (CB) electronic states of a typical valence-transition compound YbInCu$$_4$$ by means of temperature-dependent hard X-ray photoemission spectroscopy (HX-PES), soft X-ray absorption spectroscopy (XAS), and soft X-ray photoemission spectroscopy (SX-PES) of the valence band. We have described the valence transition in YbInCu$$_4$$ in terms of the charge transfer from the CB to Yb 4$$f$$ states.

Journal Articles

Laser cutting technologies under water for the nuclear reacter dismantlement

Kobayashi, Kojiro*; Ida, Toshio*; Yamaguchi, Takeshi*; Daido, Hiroyuki; Muramatsu, Toshiharu; Sano, Kazuya; Tsuboi, Akihiko*; Shamoto, Hideyasu*; Ikeda, Takeshi*

Yosetsu Gijutsu, 59(7), p.64 - 69, 2011/07

no abstracts in English

Journal Articles

Present status of nuclear criticality safety research; highlights of International Conference on Nuclear Criticality Safety(ICNC-91)

Nishina, Kojiro*; Yamane, Yoshihiro*; Kobayashi, Iwao; Tachimori, Shoichi; ; Miyoshi, Yoshinori; Okuno, Hiroshi; Nakajima, Ken; Mitake, Susumu*; *; et al.

Nihon Genshiryoku Gakkai-Shi, 34(4), p.311 - 319, 1992/04

 Times Cited Count:0 Percentile:0.49(Nuclear Science & Technology)

no abstracts in English

Oral presentation

Investigation of hydration and adsorption structures of radium by EXAFS

Yamaguchi, Akiko; Nagata, Kojiro*; Tanaka, Kazuya; Kobayashi, Keita; Okumura, Masahiko; Kobayashi, Toru; Shimojo, Kojiro; Tanida, Hajime; Sekiguchi, Tetsuhiro; Kaneta, Yui; et al.

no journal, , 

no abstracts in English

Oral presentation

Investigation of hydration and adsorption structures on clay minerals of radium

Yamaguchi, Akiko; Nagata, Kojiro*; Tanaka, Kazuya; Kobayashi, Keita; Okumura, Masahiko; Kobayashi, Toru; Shimojo, Kojiro; Tanida, Hajime; Sekiguchi, Tetsuhiro; Kaneta, Yui; et al.

no journal, , 

no abstracts in English

Oral presentation

Extraction equilibrium and structural chemistry of rare earths with a nitriloacetic acid diamide-type ligand

Shimojo, Kojiro; Kobayashi, Toru; Yokoyama, Keiichi; Yaita, Tsuyoshi

no journal, , 

We have developed a novel nitriloacetic acid diamide-type ligand, and investigated the extraction behavior of rare-earth metal ions using the ligand. It was found that the ligand provides a remarkably high selectivity for scandium among rare-earth elements. In addition, we clarified crystal structure of the complexes by single-crystal X-ray diffraction. The clear differences in the chemical structures between scandium complexes and lanthanum complexes were demonstrated.

Oral presentation

Investigation of the environmental behavior of radium based on information at the molecular level

Yamaguchi, Akiko; Nagata, Kojiro*; Kobayashi, Keita; Tanaka, Kazuya; Kobayashi, Toru; Tanida, Hajime; Yaita, Tsuyoshi; Yoshimura, Takashi*; Okumura, Masahiko; Takahashi, Yoshio*

no journal, , 

no abstracts in English

Oral presentation

Local structural analysis of Ra-226 adsorbed on hydroxyapatite formed by osteoblast culture

Nagata, Kojiro*; Yamaguchi, Akiko; Kobayashi, Toru; Shimojo, Kojiro; Yokoyama, Keiichi; Tanida, Hajime; Yaita, Tsuyoshi; Takahashi, Yoshio*; Yoshimura, Takashi*

no journal, , 

no abstracts in English

Oral presentation

Investigation of adsorption structure of radium on clay minerals and its implications on the environmental behavior of radium

Yamaguchi, Akiko; Kurihara, Yuichi*; Nagata, Kojiro*; Kobayashi, Keita; Tanaka, Kazuya; Kobayashi, Toru; Tanida, Hajime; Yaita, Tsuyoshi; Yoshimura, Takashi*; Okumura, Masahiko; et al.

no journal, , 

no abstracts in English

Oral presentation

Preparation of multiply fused phenanthroline derivatives employing catalytic C-H arylation and the highly selective extraction of lanthanoids

Asano, Towa*; Kobayashi, Toru; Shimojo, Kojiro; Yamaoka, Seiha*; Torii, Ren*; Okano, Kentaro*; Yaita, Tsuyoshi; Mori, Atsunori*

no journal, , 

no abstracts in English

16 (Records 1-16 displayed on this page)
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