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Te
Wang, Y.*; Kajihara, Shun*; Matsuoka, Hideki*; Saika, B. K.*; Yamagami, Kohei*; Takeda, Yukiharu; Wadachi, Hiroki*; Ishizaka, Kyoko*; Iwasa, Yoshihiro*; Nakano, Masaki*
Nano Letters, 22(24), p.9964 - 9971, 2022/12
Times Cited Count：15 Percentile：84.45(Chemistry, Multidisciplinary)
-
hybridization intertwined with anomalous ground state formation in the van der Waals itinerant magnet Fe
GeTe
Yamagami, Kohei*; Fujisawa, Yuita*; Pardo-Almanza, M*; Smith, B. R. M.*; Sumida, Kazuki; Takeda, Yukiharu; Okada, Yoshinori*
Physical Review B, 106(4), p.045137_1 - 045137_8, 2022/07
Times Cited Count：2 Percentile：32.25(Materials Science, Multidisciplinary)Fujiwara, Hidenori*; Umetsu, Rie*; Kuroda, Fumiaki*; Miyawaki, Jun*; Kashiuchi, Toshiyuki*; Nishimoto, Kohei*; Nagai, Kodai*; Sekiyama, Akira*; Irizawa, Akinori*; Takeda, Yukiharu; et al.
Scientific Reports (Internet), 11(1), p.18654_1 - 18654_9, 2021/09
Times Cited Count：0 Percentile：0(Multidisciplinary Sciences)
CrMnO
thin filmsYoshimatsu, Kohei*; Ishimaru, Junya*; Watarai, Keisuke*; Yamamoto, Kohei*; Hirata, Yasuyuki*; Wadachi, Hiroki*; Takeda, Yukiharu; Horiba, Koji*; Kumigashira, Hiroshi*; Sakata, Osami*; et al.
Physical Review B, 99(23), p.235129_1 - 235129_8, 2019/06
Times Cited Count：11 Percentile：49.16(Materials Science, Multidisciplinary)
thin filmsIshigami, Keisuke*; Yoshimatsu, Kohei*; Toyota, Daisuke*; Takizawa, Masaru*; Yoshida, Teppei*; Shibata, Goro*; Harano, Takayuki*; Takahashi, Yukio*; Kadono, Toshiharu*; Verma, V. K.*; et al.
Physical Review B, 92(6), p.064402_1 - 064402_5, 2015/08
Times Cited Count：46 Percentile：84.31(Materials Science, Multidisciplinary)
Sr
MnO thin films studied by X-ray magnetic circular dichroismShibata, Goro*; Yoshimatsu, Kohei*; Sakai, Enju*; Singh, V. R.*; Verma, V.*; Ishigami, Keisuke*; Harano, Takayuki*; Kadono, Toshiharu*; Takeda, Yukiharu; Okane, Tetsuo; et al.
Physical Review B, 89(23), p.235123_1 - 235123_5, 2014/06
Times Cited Count：23 Percentile：67.74(Materials Science, Multidisciplinary)
USDA110 generated by ion-beam irradiationTakeda, Kiyoko; Tejima, Kohei*; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
JAEA-Review 2012-046, JAEA Takasaki Annual Report 2011, P. 107, 2013/01
-sterilization of biofertilizer's carrier on bacterial inoculants survivalTejima, Kohei*; Yokoyama, Tadashi*; Sato, Katsuya; Takeda, Kiyoko; Narumi, Issei
JAEA-Review 2012-046, JAEA Takasaki Annual Report 2011, P. 112, 2013/01
-sterilization of carrier materials made with different types of soils on the shelf life of biofertilizer containing strain USDA110Tejima, Kohei; Sato, Katsuya; Takeda, Kiyoko; Yokoyama, Tadashi*; Narumi, Issei
Radioisotopes, 61(4), p.161 - 171, 2012/04
A biofertilizer is a substance that holds beneficial microorganisms for plant growth in a carrier material. To demonstrate the effect of -sterilization, the survival of the was monitored to assess the shelf life of biofertilizers. As biofertilizer carriers, five kinds of typical Japanese soil-based materials were used. Following the sterilization of carrier materials by -irradiation or autoclaving, 
was inoculated into each material. The biofertilizer was stored for 12 months at 4
C or 30C. After storage, viable inoculants in the biofertilizer were enumerated. Results indicated that inoculant density after storage was greater than the initial density in biofertilizers made from sterilized carriers, whereas it decreased significantly in biofertilizers made from non-sterilized carriers. -sterilization was superior to autoclave sterilization in enhancing inoculant survival in some cases.
USDA 110 obtained by ion-beam microbial mutation-breeding technologyTakeda, Kiyoko; Tejima, Kohei; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
JAEA-Review 2011-043, JAEA Takasaki Annual Report 2010, P. 110, 2012/01
imaging device of high spatial resolution ZnO scintillatorNakazato, Tomoharu*; Shimizu, Toshihiko*; Yamanoi, Kohei*; Sakai, Kohei*; Takeda, Kohei*; Nishi, Ryosuke*; Minami, Yuki*; Cadatal-Raduban, M.*; Sarukura, Nobuhiko*; Nishimura, Hiroaki*; et al.
Japanese Journal of Applied Physics, 50(12), p.122202_1 - 122202_4, 2011/12
Times Cited Count：10 Percentile：37.91(Physics, Applied)We demonstrate the potential of a hydrothermal method-grown ZnO as a high-spatial resolution imaging device for in-situ soft X-ray laser diagnostics by characterizing the exciton emission patterns. By plotting the emission pattern radii at each position, we estimated the evolution of the beam radius around the focal point. The beam profile of the Ni-like Ag ion plasma laser was estimated from the waist radii as 29 and 21
m, the divergence angle as 7.2 and 11 mrad and the M2 factor as 47 and 50 in the horizontal- and vertical-axis, respectively. Spatial resolution of the magnifier was estimated to be 6m and is expected to improve by optimizing the optics of the magnifier and using a telescope. Our results would enhance the use of ZnO as an imaging device that would play a crucial role in the development and application of soft X-ray light sources.
USDA 110 into a high temperature tolerant strain in terms of ion-beam microbial mutation-breeding technologyTakeda, Kiyoko*; Tejima, Kohei; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 75, 2011/01
Obayashi, Hironari; Yamaguchi, Kohei*; Kon, Seiji*; Takeda, Yasushi*
Nihon Ryutai Rikigakkai Nenkai 2006 Koen Rombunshu (CD-ROM), 4 Pages, 2006/09
The velocity vector of fluid is expressed with the function of the velocity components of three directions, and the function of time. Therefore, in order to understand the flow structure, it becomes very important to measure these components. We propose the new equipment that enables three-dimensional velocity vector measurement of the flow field of the name of Vector-UVP. It consists of a central emitter, symmetrically surrounded by three receivers. If the plane transducer is used for the emitter, the ultrasonic beam will spread in the practical range, consequently measurement volume will become too large. Thus, the characteristic of the ultrasonic beam from the emitter has great influence on the performance of Vector-UVP. For the solution of this problem, and in order to simplify our equipment, we use commercial focused transducer for the emitter. We developed 2D Vecotor-UVP system. And this system successfully applied to an actual flow field for two-dimensional velocity vector measurements.
Yachi, Shigeyasu; Sato, Tadashi; Suga, Shinichi*; Komuro, Yuichi; Uchida, Masaaki; Nakajima, Kunihisa; Nakamura, Jinichi; Amezawa, Hiroo; Omura, Hideaki*; Minato, Kazuo; et al.
JAERI-Review 2003-025, 162 Pages, 2003/09
JAERI-Review-2003-025.pdf:5.96MB
The report contains example of answers to the Problems of 31st(1999) to 35th(2003) Examinations for the Chief Engineer of Nuclear Fuel which were conducted as a national qualification examination. Brief explanations or references are given to some answers.
Takeda, Kiyoko*; Tejima, Kohei; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
no journal, ,
no abstracts in English
USDA110 into a high temperature tolerant strain in terms of ion-beam microbial mutation-breeding technologyTakeda, Kiyoko*; Tejima, Kohei; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
no journal, ,
no abstracts in English
Yokoyama, Tadashi*; Takeda, Kiyoko*; Tejima, Kohei; Sato, Katsuya; Narumi, Issei
no journal, ,
no abstracts in English
USDA 110 into a high temperature tolerant strain as a more applicable inoculant for biofertilizers in terms of ion-beam microbial mutation-breeding technologyYokoyama, Tadashi*; Takeda, Kiyoko; Tejima, Kohei; Sato, Katsuya; Narumi, Issei
no journal, ,
no abstracts in English
generated by carbon ion beam irradiationTakeda, Kiyoko; Tejima, Kohei; Sato, Katsuya; Narumi, Issei; Yokoyama, Tadashi*
no journal, ,
no abstracts in English
-sterilization of biofertilizer's carrier on bacterial inoculants survivalTejima, Kohei; Yokoyama, Tadashi*; Sato, Katsuya; Takeda, Kiyoko; Narumi, Issei
no journal, ,
Biofertilizer is a substance that holds beneficial microorganism for plant growth (e.g. Rhizobia) in the carrier such as peat, perlite, charcoal and soil. To use biofertilizer more efficiently, it is necessary to keep the amount of viable inoculants in the biofertilizer for a definite period of time. The inoculants survival in the biofertilizer could be affected by the physical and chemical properties of carrier materials and by the competition with native microorganisms in the carrier. -irradiation is expected to sterilize the carrier materials without changes in physical and chemical properties. In an effort to demonstrate the advantage of -sterilization, the survivals of inoculants were monitored to assess the shelf life of biofertilizer.
