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Journal Articles

Beam-palarization asymmetries for the $$p$$($$overrightarrow{gamma}$$,$$K$$$$^{+}$$)$$Lambda$$ and $$p$$($$overrightarrow{gamma}$$,$$K$$$$^{+}$$)$$Sigma$$$$^{0}$$ reactions for $$E$$$$_{gamma}$$=1.5-2.4 GeV

Zegers, R. G. T.*; Sumihama, Mizuki*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Dat$'e$, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; et al.

Physical Review Letters, 91(9), p.092001_1 - 092001_4, 2003/08

 Times Cited Count:127 Percentile:95.11(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Evidence for a narrow $$S$$ = +1 Baryon resonance in photoproduction from the neutron

Nakano, Takashi*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Date, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; Fujiwara, Mamoru; et al.

Physical Review Letters, 91(1), p.012002_1 - 012002_4, 2003/07

 Times Cited Count:998 Percentile:99.88(Physics, Multidisciplinary)

no abstracts in English

JAEA Reports

Investigation research of core-basic information associated with the coupling analysis; Outline report

Kataoka, Shinichi*; Kawahara, Kenichi*; Matsunaga, Kenichi*; Ishihara, Yoshinao*; Neyama, Atsushi*; Nakagawa, Koichi*; Iwata, Hiroshi*; Mori, Koji*

JNC TJ8400 2001-037, 33 Pages, 2001/03

JNC-TJ8400-2001-037.pdf:2.02MB

no abstracts in English

JAEA Reports

Investigation research of core-basic information associated with the coupling analysis; result report

Kataoka, Shinichi*; Kawahara, Kenichi*; Matsunaga, Kenichi*; Ishihara, Yoshinao*; Neyama, Atsushi*; Nakagawa, Koichi*; Iwata, Hiroshi*

JNC TJ8400 2001-036, 202 Pages, 2001/03

JNC-TJ8400-2001-036.pdf:7.58MB

The newest literature information in the foreign countries was researched, and this research showed the basic concept of the coupling analysis code to realize coupling analysis in near field of the geological disposal system. The outline of this research is shown in the following. (1)The combination of M (Mechanical) and (Chemistry) is placed on the weak relations, Because coupling analysis of the United States Yucca Mountain limits a site and the specifications of engineered barrier. (2)One of the purposes of this research is information collecting about coupling analysis code NUFT-C adopted in the United States Yucca Mountain. Therefore, we carried out an information exchange with the United States Lawrence Livermore National Laboratory. We could collect the development purpose of analysis code, key function, and information such as a test case analysis. (3)The investigation of the analysis code concerned with the newest information of coupling analysis which contains the geochemistry process and 2 phase system was done based on the public information for the purpose of building some concept of the coupling analysis code, the extraction of the development issues. It could be understood about the future development strategy and the precaution in addition to a phenomenon to deal with, the current status of the coupling analysis technique as a result of the investigation. (4)It was cleared about the mission of the coupling analysis code and the requirement items (function, quality) by this research. Then, some development options were presented. (5)It was studied about the procedure of developing it to satisfy the above requirement toward the conditions that a site isn't selected, the short development. The tool (Diffpack) which could cope with the speed-up of the calculation time and visualization flexibly was effective, and it was summarized about the test case by using this tool, the key function of this tool as that result.

Journal Articles

Data-Free-Way; Attempt at developing distributed database for nuclear materials

Kinugawa, Junichi*; Fujita, Mitsutane*; Noda, Tetsuji*; Tsuji, Hirokazu; Kaji, Yoshiyuki; Sakino, Takao*; Tachi, Yoshiaki*; Kaneda, Kenichiro*; Mashiko, Shinichi*; Shimura, Kazuki*; et al.

Proceedings of 9th German-Japanese Workshop on Chemical Information, p.134 - 135, 2000/00

no abstracts in English

Oral presentation

Effects of the exposure of extreme environments on the life-time and breeding ability of tardigrade ${it Ramazzottius varieornatus}$

Wadachi, Hiroki*; Kunieda, Takekazu*; Sakashita, Tetsuya; Kawai, Kiyoshi*; Iwata, Kenichi*; Nakahara, Yuichi*; Hamada, Nobuyuki*; Koseki, Shigenobu*; Yamamoto, Kazutaka*; Kobayashi, Yasuhiko; et al.

no journal, , 

We studied the effects of the exposure of extreme environments on life-time and breeding ability of tardigrade ${it R. varieornatus}$ to reveal the possibility of multi-cellular organism existences in the outerspace. A life time of animals is the shortest in the heavy-ion exposed animals than any other stressors. There were significant decrease in the number of egg-laying and hatching rate between irradiated and non-irradiated animals. However, we found the next generation in all experimental conditions. Our findings suggest that tardigrades exposed to even any extreme environments could have a descendant.

Oral presentation

The Tardigrade ${it Ramazzottius varieornatus}$; A Model for astrobiological studies

Horikawa, Daiki*; Kunieda, Takekazu*; Abe, Wataru*; Koshikawa, Shigeyuki*; Nakahara, Yuichi*; Watanabe, Masahiko*; Iwata, Kenichi*; Sakashita, Tetsuya; Hamada, Nobuyuki*; Higashi, Seigo*; et al.

no journal, , 

We report the first successful rearing of the herbivorous tardigrade, ${it Ramazzottius varieornatus}$, by supplying a green alga ${it Chlorella vulgaris}$ as a food. The reared individuals of this species had an anhydrobiotic capacity throughout their life cycle, from eggs, to juveniles, and to adults. Reared adults, while in an anhydrobiotic state, were tolerant to temperatures -196$$^{circ}$$C and 100$$^{circ}$$C. Furthermore, they were shown to be tolerant to the exposure to 99.8% acetonitrile, 1 GPa of hydrostatic pressure, or 5000 Gy of He ion radiation. We will report the details of these results, along with the description of their life history. Due to the observed tolerance to such extreme environmental conditions, we propose R. varieornatus to be included as a suitable model for astrobiological studies of multicellular organisms.

Oral presentation

Studies on stabilizing treatment process for low-radioactive phosphate effluent; Insolubilization experiment for phosphate effluent

Iwata, Masayuki*; Shimokawa, Kosuke*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for stabilization treatment of low level liquid waste including PO $$_{4}$$$$^{-}$$

Iwata, Masayuki*; Shimokawa, Kosuke*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

The Study of highly sensitivity technique for sodium leak detection using laser resonance ionization mass spectrometry to improve fast reactor plant safety

Aoyama, Takafumi; Ito, Chikara; Araki, Yoshio; Naito, Hiroyuki; Iwata, Yoshihiro; Okazaki, Koki*; Harano, Hideki*; Watanabe, Kenichi*; Iguchi, Tetsuo*; Takegawa, Nobuyuki*; et al.

no journal, , 

no abstracts in English

Oral presentation

A Basic study for stabilization treatment of low level liquid waste; Studies on glassification using iron phosphate

Iwata, Masayuki*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for stabilization treatment of low level liquid waste; Studies on separation cleaning of sodium using inorganic ion exchanger

Okadome, Yoshihiro*; Kobayashi, Atsushi*; Arai, Tsuyoshi*; Iwata, Masayuki*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for treatment process of low level liquid waste using iron phosphate glass

Iwata, Masayuki*; Okadome, Yoshihiro*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study on the separation and stabilization of sodium from low level liquid waste by inorganic ion exchanger

Okadome, Yoshihiro*; Iwata, Masayuki*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Study for separation and stabilization of sodium from low level liquid waste using inorganic ion exchanger

Okadome, Yoshihiro*; Iwata, Masayuki*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for solidification of low level liquid waste with iron phosphate glass

Iwata, Masayuki*; Okadome, Yoshihiro*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for solidification of low level liquid waste with iron phosphate glass

Iwata, Masayuki*; Saito, Akihito*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

The Study of highly sensitivity technique for sodium leak detection using laser resonance ionization mass spectrometry

Aoyama, Takafumi; Ito, Chikara; Naito, Hiroyuki; Iwata, Yoshihiro; Harano, Hideki*; Okazaki, Koki*; Araki, Yoshio*; Watanabe, Kenichi*; Iguchi, Tetsuo*; Takegawa, Nobuyuki*; et al.

no journal, , 

no abstracts in English

Oral presentation

A Basic study on optimization of PO$$_{4}$$$$^{3-}$$ stabilization process for low level radioactive liquid waste

Saito, Akihito*; Arai, Tsuyoshi*; Iwata, Masayuki*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Basic study for solidification of low level liquid waste including high density sodium with iron phosphate glass

Iwata, Masayuki*; Saito, Akihito*; Arai, Tsuyoshi*; Nagayama, Katsuhisa*; Suzuki, Tatsuya*; Horiguchi, Kenichi; Sugaya, Atsushi

no journal, , 

no abstracts in English

27 (Records 1-20 displayed on this page)