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Uchida, Kenichi*; Xiao, J.*; Adachi, Hiroto; Oe, Junichiro; Takahashi, Saburo; Ieda, Junichi; Ota, Takeru*; Kajiwara, Yosuke*; Umezawa, Hiromitsu*; Kawai, Hirotaka*; et al.
Nature Materials, 9(11), p.894 - 897, 2010/11
Times Cited Count：1044 Percentile：99.87(Chemistry, Physical)Thermoelectric generation is an essential function in future energy-saving technologies. However, it has so far been an exclusive feature of electric conductors, a situation which limits its application; conduction electrons are often problematic in the thermal design of devices. Here we report electric voltage generation from heat flowing in an insulator. We reveal that, despite the absence of conduction electrons, the magnetic insulator LaY
Fe
O
can convert a heat flow into a spin voltage. Attached Pt films can then transform this spin voltage into an electric voltage as a result of the inverse spin Hall effect. The experimental result require us to introduce a thermally activated interface spin exchange between LaYFeO and Pt. Our findings extend the range of potential materials for thermoelectric applications and provide a crucial piece of information for understanding the physics of the spin Seebeck effect.
Teshigawara, Makoto; Harada, Masahide; Saito, Shigeru; Oikawa, Kenichi; Maekawa, Fujio; Futakawa, Masatoshi; Kikuchi, Kenji; Kato, Takashi; Ikeda, Yujiro; Naoe, Takashi*; et al.
Journal of Nuclear Materials, 356(1-3), p.300 - 307, 2006/09
Times Cited Count：9 Percentile：53.38(Materials Science, Multidisciplinary)We adopted silver-indium-cadmium (Ag-In-Cd) alloy as a material of decoupler for decoupled moderator in JSNS. However, from the heat removal and corrosion protection points of view, the Ag-In-Cd alloy is needed to clad between Al alloys (Al5083). We attempted to obtain good bonding conditions for between Al5083 and ternary Ag-In-Cd alloys by HIPing tests. The good HIP condition was found for small test piece (
20mm). Though a hardened layer due to the formation of AlAg was found in the bonding layer, the rupture strength of the bonding layer was more than 20 MPa, which was the calculated design stress. Bonding tests of a large size piece (200
20030 mm
), which simulated the real scale, were also performed according to the results of small size tests. The result also gave good bonding and enough required-mechanical-strength, however the rupture strength of the large size test was smaller than that of small one.
(
,
)
and (,)
reactions for 
=1.5-2.4 GeVZegers, R. G. T.*; Sumihama, Mizuki*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Dat
, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; et al.
Physical Review Letters, 91(9), p.092001_1 - 092001_4, 2003/08
Times Cited Count：128 Percentile：94.9(Physics, Multidisciplinary)no abstracts in English
= +1 Baryon resonance in photoproduction from the neutronNakano, 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：1006 Percentile：99.86(Physics, Multidisciplinary)no abstracts in English
Fujiwara, Yukio; Hanada, Masaya; Okumura, Yoshikazu; Watanabe, Kazuhiro; Kawai, Kenichi*
Review of Scientific Instruments, 71(8), p.3059 - 3064, 2000/08
Times Cited Count：10 Percentile：55.17(Instruments & Instrumentation)no abstracts in English
Kawai, Wataru*; Ebihara, Kenichi; Kume, Etsuo; Watanabe, Tadashi
JAERI-Data/Code 2000-024, p.151 - 0, 2000/03
JAERI-Data-Code-2000-024.pdf:4.34MB
no abstracts in English
Hu, L.*; Akino, Noboru; Ebisawa, Noboru; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Kuriyama, Masaaki; Kusaka, Makoto*; Mogaki, Kazuhiko; et al.
JAERI-Tech 99-057, 16 Pages, 1999/08
no abstracts in English
Fujiwara, Yukio; Hanada, Masaya; Kawai, Kenichi*; *; Miyamoto, Kenji; Okumura, Yoshikazu; Watanabe, Kazuhiro
JAERI-Research 99-013, 32 Pages, 1999/02
JAERI-Research-99-013.pdf:1.51MB
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Honda, Atsushi; H.Liquen*; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Mogaki, Kazuhiko; et al.
Journal of Nuclear Science and Technology, 35(11), p.739 - 749, 1998/11
Times Cited Count：39 Percentile：92.5(Nuclear Science & Technology)no abstracts in English
Kawai, Mikito; Akino, Noboru; Ebisawa, Noboru; Honda, Atsushi; Ito, Takao; Kazawa, Minoru; Kuriyama, Masaaki; Mogaki, Kazuhiko; Oga, Tokumichi; Ohara, Hiroshi; et al.
JAERI-Tech 98-042, 32 Pages, 1998/09
no abstracts in English
Fujiwara, Yukio; Kawai, Kenichi*; Hanada, Masaya; *; Miyamoto, Kenji; Okumura, Yoshikazu; Watanabe, Kazuhiro
Dai-9-Kai Ryushisen No Sentanteki Oyo Gijutsu Ni Kansuru Shimpojiumu (BEAMS1998), 6 Pages, 1998/00
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Kusaka, Makoto*; H.Liquen*; et al.
Fusion Technology 1998, 1, p.391 - 394, 1998/00
no abstracts in English
Omori, Kenichiro; Usui, Katsutomi; Oshima, Katsumi*; Oga, Tokumichi; Kawai, Mikito; Watanabe, Kazuhiro; Ito, Takao; Kuriyama, Masaaki; Ono, Yoichi*; Kawashima, Shuichi*
Fusion Technology 1998, 1, 4 Pages, 1998/00
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Hanada, Masaya; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; *; et al.
Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 1, p.405 - 408, 1998/00
no abstracts in English
Oga, Tokumichi; Omori, Kenichiro; Watanabe, Kazuhiro; Oshima, Katsumi*; Ito, Takao; Kawai, Mikito; Usui, Katsutomi; Kuriyama, Masaaki
Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 2, p.1091 - 1094, 1998/00
no abstracts in English
Teshigawara, Makoto; Harada, Masahide; Saito, Shigeru; Oikawa, Kenichi; Maekawa, Fujio; Kikuchi, Kenji; Kato, Takashi; Ikeda, Yujiro; Naoe, Takashi; Oi, Toshiyuki; et al.
no journal, ,
no abstracts in English
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 
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.
; A Model for astrobiological studiesHorikawa, 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, , by supplying a green alga 
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
C and 100C. 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.
Kawai, Fumika*; Ganzawa, Yoshihiro*; Tokuyasu, Kayoko*; Yasue, Kenichi
no journal, ,
no abstracts in English
